This is the start of the stable review cycle for the 4.19.256 release. There are 287 patches in this series, all will be posted as a response to this one. If anyone has any issues with these being applied, please let me know.
Responses should be made by Thu, 25 Aug 2022 08:00:15 +0000. Anything received after that time might be too late.
The whole patch series can be found in one patch at: https://www.kernel.org/pub/linux/kernel/v4.x/stable-review/patch-4.19.256-rc... or in the git tree and branch at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-4.19.y and the diffstat can be found below.
thanks,
greg k-h
------------- Pseudo-Shortlog of commits:
Greg Kroah-Hartman gregkh@linuxfoundation.org Linux 4.19.256-rc1
Qu Wenruo wqu@suse.com btrfs: raid56: don't trust any cached sector in __raid56_parity_recover()
Qu Wenruo wqu@suse.com btrfs: only write the sectors in the vertical stripe which has data stripes
Steven Rostedt (Google) rostedt@goodmis.org tracing/probes: Have kprobes and uprobes use $COMM too
Jens Wiklander jens.wiklander@linaro.org tee: add overflow check in register_shm_helper()
Nathan Chancellor nathan@kernel.org MIPS: tlbex: Explicitly compare _PAGE_NO_EXEC against 0
Zheyu Ma zheyuma97@gmail.com video: fbdev: i740fb: Check the argument of i740_calc_vclk()
Zhouyi Zhou zhouzhouyi@gmail.com powerpc/64: Init jump labels before parse_early_param()
Steve French stfrench@microsoft.com smb3: check xattr value length earlier
Chao Yu chao.yu@oppo.com f2fs: fix to avoid use f2fs_bug_on() in f2fs_new_node_page()
Takashi Iwai tiwai@suse.de ALSA: timer: Use deferred fasync helper
Takashi Iwai tiwai@suse.de ALSA: core: Add async signal helpers
Laurent Dufour ldufour@linux.ibm.com watchdog: export lockup_detector_reconfigure
Xianting Tian xianting.tian@linux.alibaba.com RISC-V: Add fast call path of crash_kexec()
Celeste Liu coelacanthus@outlook.com riscv: mmap with PROT_WRITE but no PROT_READ is invalid
Liang He windhl@126.com mips: cavium-octeon: Fix missing of_node_put() in octeon2_usb_clocks_start
Schspa Shi schspa@gmail.com vfio: Clear the caps->buf to NULL after free
Liang He windhl@126.com tty: serial: Fix refcount leak bug in ucc_uart.c
Guenter Roeck linux@roeck-us.net lib/list_debug.c: Detect uninitialized lists
Kiselev, Oleg okiselev@amazon.com ext4: avoid resizing to a partial cluster size
Ye Bin yebin10@huawei.com ext4: avoid remove directory when directory is corrupted
Wentao_Liang Wentao_Liang_g@163.com drivers:md:fix a potential use-after-free bug
Uwe Kleine-König u.kleine-koenig@pengutronix.de dmaengine: sprd: Cleanup in .remove() after pm_runtime_get_sync() failed
Christophe JAILLET christophe.jaillet@wanadoo.fr cxl: Fix a memory leak in an error handling path
Jozef Martiniak jomajm@gmail.com gadgetfs: ep_io - wait until IRQ finishes
Robert Marko robimarko@gmail.com clk: qcom: ipq8074: dont disable gcc_sleep_clk_src
Pascal Terjan pterjan@google.com vboxguest: Do not use devm for irq
Liang He windhl@126.com usb: renesas: Fix refcount leak bug
Liang He windhl@126.com usb: host: ohci-ppc-of: Fix refcount leak bug
Sai Prakash Ranjan quic_saipraka@quicinc.com irqchip/tegra: Fix overflow implicit truncation warnings
Pavan Chebbi pavan.chebbi@broadcom.com PCI: Add ACS quirk for Broadcom BCM5750x NICs
Liang He windhl@126.com drm/meson: Fix refcount bugs in meson_vpu_has_available_connectors()
Hector Martin marcan@marcan.st locking/atomic: Make test_and_*_bit() ordered on failure
Andrew Donnellan ajd@linux.ibm.com gcc-plugins: Undefine LATENT_ENTROPY_PLUGIN when plugin disabled for a file
Lin Ma linma@zju.edu.cn igb: Add lock to avoid data race
Csókás Bence csokas.bence@prolan.hu fec: Fix timer capture timing in `fec_ptp_enable_pps()`
Alan Brady alan.brady@intel.com i40e: Fix to stop tx_timeout recovery if GLOBR fails
Michael Ellerman mpe@ellerman.id.au powerpc/pci: Fix get_phb_number() locking
Pablo Neira Ayuso pablo@netfilter.org netfilter: nf_tables: really skip inactive sets when allocating name
Al Viro viro@zeniv.linux.org.uk nios2: add force_successful_syscall_return()
Al Viro viro@zeniv.linux.org.uk nios2: restarts apply only to the first sigframe we build...
Al Viro viro@zeniv.linux.org.uk nios2: fix syscall restart checks
Al Viro viro@zeniv.linux.org.uk nios2: traced syscall does need to check the syscall number
Al Viro viro@zeniv.linux.org.uk nios2: don't leave NULLs in sys_call_table[]
Al Viro viro@zeniv.linux.org.uk nios2: page fault et.al. are *not* restartable syscalls...
Duoming Zhou duoming@zju.edu.cn atm: idt77252: fix use-after-free bugs caused by tst_timer
Dan Carpenter dan.carpenter@oracle.com xen/xenbus: fix return type in xenbus_file_read()
Dan Carpenter dan.carpenter@oracle.com NTB: ntb_tool: uninitialized heap data in tool_fn_write()
Roberto Sassu roberto.sassu@huawei.com tools build: Switch to new openssl API for test-libcrypto
Peilin Ye peilin.ye@bytedance.com vsock: Set socket state back to SS_UNCONNECTED in vsock_connect_timeout()
Peilin Ye peilin.ye@bytedance.com vsock: Fix memory leak in vsock_connect()
Matthias May matthias.may@westermo.com geneve: do not use RT_TOS for IPv6 flowlabel
Sakari Ailus sakari.ailus@linux.intel.com ACPI: property: Return type of acpi_add_nondev_subnodes() should be bool
Nikita Travkin nikita@trvn.ru pinctrl: qcom: msm8916: Allow CAMSS GP clocks to be muxed
Miaoqian Lin linmq006@gmail.com pinctrl: nomadik: Fix refcount leak in nmk_pinctrl_dt_subnode_to_map
Trond Myklebust trond.myklebust@hammerspace.com SUNRPC: Reinitialise the backchannel request buffers before reuse
Trond Myklebust trond.myklebust@hammerspace.com NFSv4/pnfs: Fix a use-after-free bug in open
Zhang Xianwei zhang.xianwei8@zte.com.cn NFSv4.1: RECLAIM_COMPLETE must handle EACCES
Trond Myklebust trond.myklebust@hammerspace.com NFSv4: Fix races in the legacy idmapper upcall
Xiu Jianfeng xiujianfeng@huawei.com apparmor: Fix memleak in aa_simple_write_to_buffer()
Xin Xiong xiongx18@fudan.edu.cn apparmor: fix reference count leak in aa_pivotroot()
John Johansen john.johansen@canonical.com apparmor: fix overlapping attachment computation
Tom Rix trix@redhat.com apparmor: fix aa_label_asxprint return check
John Johansen john.johansen@canonical.com apparmor: Fix failed mount permission check error message
John Johansen john.johansen@canonical.com apparmor: fix absroot causing audited secids to begin with =
John Johansen john.johansen@canonical.com apparmor: fix quiet_denied for file rules
Marc Kleine-Budde mkl@pengutronix.de can: ems_usb: fix clang's -Wunaligned-access warning
Steven Rostedt (Google) rostedt@goodmis.org tracing: Have filter accept "common_cpu" to be consistent
Filipe Manana fdmanana@suse.com btrfs: fix lost error handling when looking up extended ref on log replay
Christophe JAILLET christophe.jaillet@wanadoo.fr mmc: pxamci: Fix an error handling path in pxamci_probe()
Christophe JAILLET christophe.jaillet@wanadoo.fr mmc: pxamci: Fix another error handling path in pxamci_probe()
Damien Le Moal damien.lemoal@opensource.wdc.com ata: libata-eh: Add missing command name
Mikulas Patocka mpatocka@redhat.com rds: add missing barrier to release_refill
Amadeusz Sławiński amadeuszx.slawinski@linux.intel.com ALSA: info: Fix llseek return value when using callback
Christophe Leroy christophe.leroy@csgroup.eu powerpc/ptdump: Fix display of RW pages on FSL_BOOK3E
Christophe Leroy christophe.leroy@c-s.fr powerpc/mm: Split dump_pagelinuxtables flag_array table
Sudeep Holla sudeep.holla@arm.com firmware: arm_scpi: Ensure scpi_info is not assigned if the probe fails
Jamal Hadi Salim jhs@mojatatu.com net_sched: cls_route: disallow handle of 0
Tyler Hicks tyhicks@linux.microsoft.com net/9p: Initialize the iounit field during fid creation
Luiz Augusto von Dentz luiz.von.dentz@intel.com Bluetooth: L2CAP: Fix l2cap_global_chan_by_psm regression
Jose Alonso joalonsof@gmail.com Revert "net: usb: ax88179_178a needs FLAG_SEND_ZLP"
Tony Battersby tonyb@cybernetics.com scsi: sg: Allow waiting for commands to complete on removed device
Eric Dumazet edumazet@google.com tcp: fix over estimation in sk_forced_mem_schedule()
Vitaly Kuznetsov vkuznets@redhat.com KVM: x86: Avoid theoretical NULL pointer dereference in kvm_irq_delivery_to_apic_fast()
Vitaly Kuznetsov vkuznets@redhat.com KVM: x86: Check lapic_in_kernel() before attempting to set a SynIC irq
Sean Christopherson sean.j.christopherson@intel.com KVM: Add infrastructure and macro to mark VM as bugged
Qu Wenruo wqu@suse.com btrfs: reject log replay if there is unsupported RO compat flag
Thadeu Lima de Souza Cascardo cascardo@canonical.com net_sched: cls_route: remove from list when handle is 0
Rafael J. Wysocki rafael.j.wysocki@intel.com ACPI: CPPC: Do not prevent CPPC from working in the future
Mikulas Patocka mpatocka@redhat.com dm writecache: set a default MAX_WRITEBACK_JOBS
Mikulas Patocka mpatocka@redhat.com dm raid: fix address sanitizer warning in raid_status
Mikulas Patocka mpatocka@redhat.com dm raid: fix address sanitizer warning in raid_resume
Alexander Shishkin alexander.shishkin@linux.intel.com intel_th: pci: Add Meteor Lake-P support
Alexander Shishkin alexander.shishkin@linux.intel.com intel_th: pci: Add Raptor Lake-S PCH support
Alexander Shishkin alexander.shishkin@linux.intel.com intel_th: pci: Add Raptor Lake-S CPU support
Baokun Li libaokun1@huawei.com ext4: correct the misjudgment in ext4_iget_extra_inode
Baokun Li libaokun1@huawei.com ext4: correct max_inline_xattr_value_size computing
Eric Whitney enwlinux@gmail.com ext4: fix extent status tree race in writeback error recovery path
Theodore Ts'o tytso@mit.edu ext4: update s_overhead_clusters in the superblock during an on-line resize
Baokun Li libaokun1@huawei.com ext4: fix use-after-free in ext4_xattr_set_entry
Lukas Czerner lczerner@redhat.com ext4: make sure ext4_append() always allocates new block
Baokun Li libaokun1@huawei.com ext4: add EXT4_INODE_HAS_XATTR_SPACE macro in xattr.h
David Collins quic_collinsd@quicinc.com spmi: trace: fix stack-out-of-bound access in SPMI tracing functions
Alexander Lobakin alexandr.lobakin@intel.com x86/olpc: fix 'logical not is only applied to the left hand side'
Steffen Maier maier@linux.ibm.com scsi: zfcp: Fix missing auto port scan and thus missing target ports
Zheyu Ma zheyuma97@gmail.com video: fbdev: s3fb: Check the size of screen before memset_io()
Zheyu Ma zheyuma97@gmail.com video: fbdev: arkfb: Check the size of screen before memset_io()
Zheyu Ma zheyuma97@gmail.com video: fbdev: vt8623fb: Check the size of screen before memset_io()
Florian Fainelli f.fainelli@gmail.com tools/thermal: Fix possible path truncations
Zheyu Ma zheyuma97@gmail.com video: fbdev: arkfb: Fix a divide-by-zero bug in ark_set_pixclock()
Siddh Raman Pant code@siddh.me x86/numa: Use cpumask_available instead of hardcoded NULL check
Josh Poimboeuf jpoimboe@kernel.org scripts/faddr2line: Fix vmlinux detection on arm64
Arnaldo Carvalho de Melo acme@redhat.com genelf: Use HAVE_LIBCRYPTO_SUPPORT, not the never defined HAVE_LIBCRYPTO
Michael Ellerman mpe@ellerman.id.au powerpc/pci: Fix PHB numbering when using opal-phbid
Chen Zhongjin chenzhongjin@huawei.com kprobes: Forbid probing on trampoline and BPF code areas
Miaoqian Lin linmq006@gmail.com powerpc/cell/axon_msi: Fix refcount leak in setup_msi_msg_address
Miaoqian Lin linmq006@gmail.com powerpc/xive: Fix refcount leak in xive_get_max_prio
Miaoqian Lin linmq006@gmail.com powerpc/spufs: Fix refcount leak in spufs_init_isolated_loader
Pali Rohár pali@kernel.org powerpc/pci: Prefer PCI domain assignment via DT 'linux,pci-domain' and alias
Christophe Leroy christophe.leroy@csgroup.eu powerpc/32: Do not allow selection of e5500 or e6500 CPUs on PPC32
Rustam Subkhankulov subkhankulov@ispras.ru video: fbdev: sis: fix typos in SiS_GetModeID()
Liang He windhl@126.com video: fbdev: amba-clcd: Fix refcount leak bugs
Christophe JAILLET christophe.jaillet@wanadoo.fr ASoC: qcom: q6dsp: Fix an off-by-one in q6adm_alloc_copp()
Alexander Gordeev agordeev@linux.ibm.com s390/zcore: fix race when reading from hardware system area
Liang He windhl@126.com iommu/arm-smmu: qcom_iommu: Add of_node_put() when breaking out of loop
Uwe Kleine-König u.kleine-koenig@pengutronix.de mfd: t7l66xb: Drop platform disable callback
Dan Carpenter dan.carpenter@oracle.com kfifo: fix kfifo_to_user() return type
Miaoqian Lin linmq006@gmail.com rpmsg: qcom_smd: Fix refcount leak in qcom_smd_parse_edge
Sam Protsenko semen.protsenko@linaro.org iommu/exynos: Handle failed IOMMU device registration properly
Daniel Starke daniel.starke@siemens.com tty: n_gsm: fix missing corner cases in gsmld_poll()
Daniel Starke daniel.starke@siemens.com tty: n_gsm: fix DM command
Daniel Starke daniel.starke@siemens.com tty: n_gsm: fix wrong T1 retry count handling
Eric Farman farman@linux.ibm.com vfio/ccw: Do not change FSM state in subchannel event
Sireesh Kodali sireeshkodali1@gmail.com remoteproc: qcom: wcnss: Fix handling of IRQs
Daniel Starke daniel.starke@siemens.com tty: n_gsm: fix race condition in gsmld_write()
Daniel Starke daniel.starke@siemens.com tty: n_gsm: fix packet re-transmission without open control channel
Daniel Starke daniel.starke@siemens.com tty: n_gsm: fix non flow control frames during mux flow off
Chen Zhongjin chenzhongjin@huawei.com profiling: fix shift too large makes kernel panic
Ilpo Järvinen ilpo.jarvinen@linux.intel.com serial: 8250_dw: Store LSR into lsr_saved_flags in dw8250_tx_wait_empty()
Miaoqian Lin linmq006@gmail.com ASoC: mediatek: mt8173-rt5650: Fix refcount leak in mt8173_rt5650_dev_probe
Jiasheng Jiang jiasheng@iscas.ac.cn ASoC: codecs: da7210: add check for i2c_add_driver
Miaoqian Lin linmq006@gmail.com ASoC: mt6797-mt6351: Fix refcount leak in mt6797_mt6351_dev_probe
Miaoqian Lin linmq006@gmail.com ASoC: mediatek: mt8173: Fix refcount leak in mt8173_rt5650_rt5676_dev_probe
Zhihao Cheng chengzhihao1@huawei.com jbd2: fix assertion 'jh->b_frozen_data == NULL' failure when journal aborted
Li Lingfeng lilingfeng3@huawei.com ext4: recover csum seed of tmp_inode after migrating to extents
Dan Carpenter dan.carpenter@oracle.com null_blk: fix ida error handling in null_add_dev()
Zhu Yanjun yanjun.zhu@linux.dev RDMA/rxe: Fix error unwind in rxe_create_qp()
Miaohe Lin linmiaohe@huawei.com mm/mmap.c: fix missing call to vm_unacct_memory in mmap_region
Dan Carpenter dan.carpenter@oracle.com platform/olpc: Fix uninitialized data in debugfs write
Johan Hovold johan@kernel.org USB: serial: fix tty-port initialized comments
Artem Borisov dedsa2002@gmail.com HID: alps: Declare U1_UNICORN_LEGACY support
Liang He windhl@126.com mmc: cavium-thunderx: Add of_node_put() when breaking out of loop
Liang He windhl@126.com mmc: cavium-octeon: Add of_node_put() when breaking out of loop
Liang He windhl@126.com gpio: gpiolib-of: Fix refcount bugs in of_mm_gpiochip_add_data()
Jianglei Nie niejianglei2021@163.com RDMA/hfi1: fix potential memory leak in setup_base_ctxt()
Randy Dunlap rdunlap@infradead.org usb: gadget: udc: amd5536 depends on HAS_DMA
Mahesh Rajashekhara Mahesh.Rajashekhara@microchip.com scsi: smartpqi: Fix DMA direction for RAID requests
Stefan Roese sr@denx.de PCI/portdrv: Don't disable AER reporting in get_port_device_capability()
Eugen Hristev eugen.hristev@microchip.com mmc: sdhci-of-at91: fix set_uhs_signaling rewriting of MC1R
Christophe JAILLET christophe.jaillet@wanadoo.fr memstick/ms_block: Fix a memory leak
Christophe JAILLET christophe.jaillet@wanadoo.fr memstick/ms_block: Fix some incorrect memory allocation
Miaoqian Lin linmq006@gmail.com mmc: sdhci-of-esdhc: Fix refcount leak in esdhc_signal_voltage_switch
Duoming Zhou duoming@zju.edu.cn staging: rtl8192u: Fix sleep in atomic context bug in dm_fsync_timer_callback
Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com soundwire: bus_type: fix remove and shutdown support
Robert Marko robimarko@gmail.com clk: qcom: ipq8074: set BRANCH_HALT_DELAY flag for UBI clocks
Robert Marko robimarko@gmail.com clk: qcom: ipq8074: fix NSS port frequency tables
Christophe JAILLET christophe.jaillet@wanadoo.fr misc: rtsx: Fix an error handling path in rtsx_pci_probe()
Miaoqian Lin linmq006@gmail.com usb: ohci-nxp: Fix refcount leak in ohci_hcd_nxp_probe
Miaoqian Lin linmq006@gmail.com usb: host: Fix refcount leak in ehci_hcd_ppc_of_probe
Marco Pagani marpagan@redhat.com fpga: altera-pr-ip: fix unsigned comparison with less than zero
Uwe Kleine-König u.kleine-koenig@pengutronix.de mtd: st_spi_fsm: Add a clk_disable_unprepare() in .probe()'s error path
Duoming Zhou duoming@zju.edu.cn mtd: sm_ftl: Fix deadlock caused by cancel_work_sync in sm_release
Harshit Mogalapalli harshit.m.mogalapalli@oracle.com HID: cp2112: prevent a buffer overflow in cp2112_xfer()
Miaoqian Lin linmq006@gmail.com mtd: maps: Fix refcount leak in ap_flash_init
Miaoqian Lin linmq006@gmail.com mtd: maps: Fix refcount leak in of_flash_probe_versatile
Ralph Siemsen ralph.siemsen@linaro.org clk: renesas: r9a06g032: Fix UART clkgrp bitsel
Hangyu Hua hbh25y@gmail.com dccp: put dccp_qpolicy_full() and dccp_qpolicy_push() in the same lock
Eric Dumazet edumazet@google.com net: rose: fix netdev reference changes
Jakub Kicinski kuba@kernel.org netdevsim: Avoid allocation warnings triggered from user space
Maxim Mikityanskiy maximmi@nvidia.com net/mlx5e: Fix the value of MLX5E_MAX_RQ_NUM_MTTS
Hangyu Hua hbh25y@gmail.com wifi: libertas: Fix possible refcount leak in if_usb_probe()
Ammar Faizi ammarfaizi2@gnuweeb.org wifi: wil6210: debugfs: fix uninitialized variable use in `wil_write_file_wmi()`
Liang He windhl@126.com i2c: mux-gpmux: Add of_node_put() when breaking out of loop
Lars-Peter Clausen lars@metafoo.de i2c: cadence: Support PEC for SMBus block read
Jiasheng Jiang jiasheng@iscas.ac.cn Bluetooth: hci_intel: Add check for platform_driver_register
Vincent Mailhol mailhol.vincent@wanadoo.fr can: pch_can: pch_can_error(): initialize errc before using it
Vincent Mailhol mailhol.vincent@wanadoo.fr can: error: specify the values of data[5..7] of CAN error frames
Vincent Mailhol mailhol.vincent@wanadoo.fr can: usb_8dev: do not report txerr and rxerr during bus-off
Vincent Mailhol mailhol.vincent@wanadoo.fr can: kvaser_usb_leaf: do not report txerr and rxerr during bus-off
Vincent Mailhol mailhol.vincent@wanadoo.fr can: kvaser_usb_hydra: do not report txerr and rxerr during bus-off
Vincent Mailhol mailhol.vincent@wanadoo.fr can: sun4i_can: do not report txerr and rxerr during bus-off
Vincent Mailhol mailhol.vincent@wanadoo.fr can: hi311x: do not report txerr and rxerr during bus-off
Vincent Mailhol mailhol.vincent@wanadoo.fr can: sja1000: do not report txerr and rxerr during bus-off
Vincent Mailhol mailhol.vincent@wanadoo.fr can: rcar_can: do not report txerr and rxerr during bus-off
Vincent Mailhol mailhol.vincent@wanadoo.fr can: pch_can: do not report txerr and rxerr during bus-off
Rustam Subkhankulov subkhankulov@ispras.ru wifi: p54: add missing parentheses in p54_flush()
Christophe JAILLET christophe.jaillet@wanadoo.fr wifi: p54: Fix an error handling path in p54spi_probe()
Dan Carpenter dan.carpenter@oracle.com wifi: wil6210: debugfs: fix info leak in wil_write_file_wmi()
Jason A. Donenfeld Jason@zx2c4.com fs: check FMODE_LSEEK to control internal pipe splicing
Wolfram Sang wsa+renesas@sang-engineering.com selftests: timers: clocksource-switch: fix passing errors from child
Wolfram Sang wsa+renesas@sang-engineering.com selftests: timers: valid-adjtimex: build fix for newer toolchains
Anquan Wu leiqi96@hotmail.com libbpf: Fix the name of a reused map
Yonglong Li liyonglong@chinatelecom.cn tcp: make retransmitted SKB fit into the send window
Liang He windhl@126.com mediatek: mt76: mac80211: Fix missing of_node_put() in mt76_led_init()
AngeloGioacchino Del Regno angelogioacchino.delregno@collabora.com media: platform: mtk-mdp: Fix mdp_ipi_comm structure alignment
Zhengchao Shao shaozhengchao@huawei.com crypto: hisilicon - Kunpeng916 crypto driver don't sleep when in softirq
Rob Clark robdclark@chromium.org drm/msm/mdp5: Fix global state lock backoff
Hangyu Hua hbh25y@gmail.com drm: bridge: sii8620: fix possible off-by-one
Bo-Chen Chen rex-bc.chen@mediatek.com drm/mediatek: dpi: Remove output format of YUV
Brian Norris briannorris@chromium.org drm/rockchip: vop: Don't crash for invalid duplicate_state()
Dave Stevenson dave.stevenson@raspberrypi.com drm/vc4: dsi: Correct DSI divider calculations
Niels Dossche dossche.niels@gmail.com media: hdpvr: fix error value returns in hdpvr_read
Jiasheng Jiang jiasheng@iscas.ac.cn drm: bridge: adv7511: Add check for mipi_dsi_driver_register
Alexey Kodanev aleksei.kodanev@bell-sw.com wifi: iwlegacy: 4965: fix potential off-by-one overflow in il4965_rs_fill_link_cmd()
Pavel Skripkin paskripkin@gmail.com ath9k: fix use-after-free in ath9k_hif_usb_rx_cb
Zheyu Ma zheyuma97@gmail.com media: tw686x: Register the irq at the end of probe
Xu Wang vulab@iscas.ac.cn i2c: Fix a potential use after free
Xinlei Lee xinlei.lee@mediatek.com drm/mediatek: Add pull-down MIPI operation in mtk_dsi_poweroff function
Alexey Kodanev aleksei.kodanev@bell-sw.com drm/radeon: fix potential buffer overflow in ni_set_mc_special_registers()
Dan Carpenter dan.carpenter@oracle.com wifi: rtlwifi: fix error codes in rtl_debugfs_set_write_h2c()
Krzysztof Kozlowski krzysztof.kozlowski@linaro.org ath10k: do not enforce interrupt trigger type
Mike Snitzer snitzer@kernel.org dm: return early from dm_pr_call() if DM device is suspended
Markus Mayer mmayer@broadcom.com thermal/tools/tmon: Include pthread and time headers in tmon.h
Nicolas Saenz Julienne nsaenzju@redhat.com nohz/full, sched/rt: Fix missed tick-reenabling bug in dequeue_task_rt()
Liang He windhl@126.com regulator: of: Fix refcount leak bug in of_get_regulation_constraints()
Sireesh Kodali sireeshkodali1@gmail.com arm64: dts: qcom: msm8916: Fix typo in pronto remoteproc node
Yang Yingliang yangyingliang@huawei.com bus: hisi_lpc: fix missing platform_device_put() in hisi_lpc_acpi_probe()
Krzysztof Kozlowski krzysztof.kozlowski@linaro.org ARM: dts: qcom: pm8841: add required thermal-sensor-cells
Miaoqian Lin linmq006@gmail.com cpufreq: zynq: Fix refcount leak in zynq_get_revision
Miaoqian Lin linmq006@gmail.com ARM: OMAP2+: Fix refcount leak in omap3xxx_prm_late_init
Michael Walle michael@walle.cc soc: fsl: guts: machine variable might be unset
Krzysztof Kozlowski krzysztof.kozlowski@linaro.org ARM: dts: ast2500-evb: fix board compatible
Johan Hovold johan@kernel.org x86/pmem: Fix platform-device leak in error path
Miaoqian Lin linmq006@gmail.com ARM: bcm: Fix refcount leak in bcm_kona_smc_init
Miaoqian Lin linmq006@gmail.com meson-mx-socinfo: Fix refcount leak in meson_mx_socinfo_init
Russell King (Oracle) rmk+kernel@armlinux.org.uk ARM: findbit: fix overflowing offset
Xiu Jianfeng xiujianfeng@huawei.com selinux: Add boundary check in put_entry()
Tetsuo Handa penguin-kernel@I-love.SAKURA.ne.jp PM: hibernate: defer device probing when resuming from hibernation
Robert Marko robimarko@gmail.com arm64: dts: qcom: ipq8074: fix NAND node name
huhai huhai@kylinos.cn ACPI: LPSS: Fix missing check in register_device_clock()
Manyi Li limanyi@uniontech.com ACPI: PM: save NVS memory for Lenovo G40-45
Hans de Goede hdegoede@redhat.com ACPI: EC: Remove duplicate ThinkPad X1 Carbon 6th entry from DMI quirks
Liang He windhl@126.com ARM: OMAP2+: display: Fix refcount leak bug
Alexander Stein alexander.stein@ew.tq-group.com ARM: dts: imx6ul: fix qspi node compatible
Alexander Stein alexander.stein@ew.tq-group.com ARM: dts: imx6ul: fix lcdif node compatible
Alexander Stein alexander.stein@ew.tq-group.com ARM: dts: imx6ul: change operating-points to uint32-matrix
Alexander Stein alexander.stein@ew.tq-group.com ARM: dts: imx6ul: add missing properties for sram
Jan Kara jack@suse.cz ext2: Add more validity checks for inode counts
haibinzhang (张海斌) haibinzhang@tencent.com arm64: fix oops in concurrently setting insn_emulation sysctls
Francis Laniel flaniel@linux.microsoft.com arm64: Do not forget syscall when starting a new thread.
Florian Westphal fw@strlen.de netfilter: nf_tables: fix null deref due to zeroed list head
Thadeu Lima de Souza Cascardo cascardo@canonical.com netfilter: nf_tables: do not allow SET_ID to refer to another table
Weitao Wang WeitaoWang-oc@zhaoxin.com USB: HCD: Fix URB giveback issue in tasklet function
Huacai Chen chenhuacai@loongson.cn MIPS: cpuinfo: Fix a warning for CONFIG_CPUMASK_OFFSTACK
Michael Ellerman mpe@ellerman.id.au powerpc/powernv: Avoid crashing if rng is NULL
Pali Rohár pali@kernel.org powerpc/fsl-pci: Fix Class Code of PCIe Root Port
Pali Rohár pali@kernel.org PCI: Add defines for normal and subtractive PCI bridges
Alexander Lobakin alexandr.lobakin@intel.com ia64, processor: fix -Wincompatible-pointer-types in ia64_get_irr()
Mikulas Patocka mpatocka@redhat.com md-raid10: fix KASAN warning
Narendra Hadke nhadke@marvell.com serial: mvebu-uart: uart2 error bits clearing
Miklos Szeredi mszeredi@redhat.com fuse: limit nsec
Zheyu Ma zheyuma97@gmail.com iio: light: isl29028: Fix the warning in isl29028_remove()
Ovidiu Panait ovidiu.panait@windriver.com selftests/bpf: Fix "dubious pointer arithmetic" test
Ovidiu Panait ovidiu.panait@windriver.com selftests/bpf: Fix test_align verifier log patterns
Ovidiu Panait ovidiu.panait@windriver.com bpf: Verifer, adjust_scalar_min_max_vals to always call update_reg_bounds()
Leo Li sunpeng.li@amd.com drm/amdgpu: Check BO's requested pinning domains against its preferred_domains
Timur Tabi ttabi@nvidia.com drm/nouveau: fix another off-by-one in nvbios_addr
Helge Deller deller@gmx.de parisc: Fix device names in /proc/iomem
Jiachen Zhang zhangjiachen.jaycee@bytedance.com ovl: drop WARN_ON() dentry is NULL in ovl_encode_fh()
Lukas Wunner lukas@wunner.de usbnet: Fix linkwatch use-after-free on disconnect
Helge Deller deller@gmx.de fbcon: Fix boundary checks for fbcon=vc:n1-n2 parameters
Rafael J. Wysocki rafael.j.wysocki@intel.com thermal: sysfs: Fix cooling_device_stats_setup() error code path
Yang Xu xuyang2018.jy@fujitsu.com fs: Add missing umask strip in vfs_tmpfile
David Howells dhowells@redhat.com vfs: Check the truncate maximum size in inode_newsize_ok()
Tetsuo Handa penguin-kernel@I-love.SAKURA.ne.jp tty: vt: initialize unicode screen buffer
Allen Ballway ballway@chromium.org ALSA: hda/cirrus - support for iMac 12,1 model
Meng Tang tangmeng@uniontech.com ALSA: hda/conexant: Add quirk for LENOVO 20149 Notebook model
Sean Christopherson seanjc@google.com KVM: x86: Set error code to segment selector on LLDT/LTR non-canonical #GP
Sean Christopherson seanjc@google.com KVM: x86: Mark TSS busy during LTR emulation _after_ all fault checks
Maciej S. Szmigiero maciej.szmigiero@oracle.com KVM: SVM: Don't BUG if userspace injects an interrupt with GIF=0
Ping Cheng pinglinux@gmail.com HID: wacom: Don't register pad_input for touch switch
Mikulas Patocka mpatocka@redhat.com add barriers to buffer_uptodate and set_buffer_uptodate
Johannes Berg johannes.berg@intel.com wifi: mac80211_hwsim: use 32-bit skb cookie
Johannes Berg johannes.berg@intel.com wifi: mac80211_hwsim: add back erroneously removed cast
Jeongik Cha jeongik@google.com wifi: mac80211_hwsim: fix race condition in pending packet
Zheyu Ma zheyuma97@gmail.com ALSA: bcd2000: Fix a UAF bug on the error path of probing
Nick Desaulniers ndesaulniers@google.com x86: link vdso and boot with -z noexecstack --no-warn-rwx-segments
Nick Desaulniers ndesaulniers@google.com Makefile: link with -z noexecstack --no-warn-rwx-segments
-------------
Diffstat:
Documentation/atomic_bitops.txt | 2 +- Makefile | 7 +- arch/arm/boot/dts/aspeed-ast2500-evb.dts | 2 +- arch/arm/boot/dts/imx6ul.dtsi | 29 ++-- arch/arm/boot/dts/qcom-pm8841.dtsi | 1 + arch/arm/lib/findbit.S | 16 +-- arch/arm/mach-bcm/bcm_kona_smc.c | 1 + arch/arm/mach-omap2/display.c | 1 + arch/arm/mach-omap2/prm3xxx.c | 1 + arch/arm/mach-zynq/common.c | 1 + arch/arm64/boot/dts/qcom/ipq8074.dtsi | 2 +- arch/arm64/boot/dts/qcom/msm8916.dtsi | 4 +- arch/arm64/include/asm/processor.h | 3 +- arch/arm64/kernel/armv8_deprecated.c | 9 +- arch/ia64/include/asm/processor.h | 2 +- arch/mips/cavium-octeon/octeon-platform.c | 3 +- arch/mips/kernel/proc.c | 2 +- arch/mips/mm/tlbex.c | 4 +- arch/nios2/include/asm/entry.h | 3 +- arch/nios2/include/asm/ptrace.h | 2 + arch/nios2/kernel/entry.S | 22 ++- arch/nios2/kernel/signal.c | 3 +- arch/nios2/kernel/syscall_table.c | 1 + arch/parisc/kernel/drivers.c | 9 +- arch/powerpc/kernel/pci-common.c | 45 ++++-- arch/powerpc/kernel/prom.c | 7 + arch/powerpc/mm/Makefile | 7 + arch/powerpc/mm/dump_linuxpagetables-8xx.c | 82 +++++++++++ arch/powerpc/mm/dump_linuxpagetables-book3s64.c | 115 +++++++++++++++ arch/powerpc/mm/dump_linuxpagetables-generic.c | 82 +++++++++++ arch/powerpc/mm/dump_linuxpagetables.c | 155 +-------------------- arch/powerpc/mm/dump_linuxpagetables.h | 19 +++ arch/powerpc/platforms/Kconfig.cputype | 4 +- arch/powerpc/platforms/cell/axon_msi.c | 1 + arch/powerpc/platforms/cell/spufs/inode.c | 1 + arch/powerpc/platforms/powernv/rng.c | 2 + arch/powerpc/sysdev/fsl_pci.c | 8 ++ arch/powerpc/sysdev/fsl_pci.h | 1 + arch/powerpc/sysdev/xive/spapr.c | 1 + arch/riscv/kernel/sys_riscv.c | 5 +- arch/riscv/kernel/traps.c | 4 + arch/x86/boot/Makefile | 2 +- arch/x86/boot/compressed/Makefile | 4 + arch/x86/entry/vdso/Makefile | 2 +- arch/x86/kernel/pmem.c | 7 +- arch/x86/kvm/emulate.c | 23 ++- arch/x86/kvm/hyperv.c | 3 + arch/x86/kvm/lapic.c | 4 + arch/x86/kvm/svm.c | 2 - arch/x86/mm/numa.c | 4 +- arch/x86/platform/olpc/olpc-xo1-sci.c | 2 +- drivers/acpi/acpi_lpss.c | 3 + drivers/acpi/cppc_acpi.c | 54 ++++--- drivers/acpi/ec.c | 7 - drivers/acpi/property.c | 8 +- drivers/acpi/sleep.c | 8 ++ drivers/ata/libata-eh.c | 1 + drivers/atm/idt77252.c | 1 + drivers/block/null_blk_main.c | 14 +- drivers/bluetooth/hci_intel.c | 6 +- drivers/bus/hisi_lpc.c | 10 +- drivers/clk/qcom/gcc-ipq8074.c | 19 +++ drivers/clk/renesas/r9a06g032-clocks.c | 8 +- drivers/crypto/hisilicon/sec/sec_algs.c | 14 +- drivers/crypto/hisilicon/sec/sec_drv.h | 2 +- drivers/dma/sprd-dma.c | 5 +- drivers/firmware/arm_scpi.c | 61 ++++---- drivers/fpga/altera-pr-ip-core.c | 2 +- drivers/gpio/gpiolib-of.c | 4 +- drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | 4 + drivers/gpu/drm/bridge/adv7511/adv7511_drv.c | 17 ++- drivers/gpu/drm/bridge/sil-sii8620.c | 4 +- drivers/gpu/drm/mediatek/mtk_dpi.c | 31 +---- drivers/gpu/drm/mediatek/mtk_dsi.c | 2 + drivers/gpu/drm/meson/meson_drv.c | 5 +- drivers/gpu/drm/msm/disp/mdp5/mdp5_pipe.c | 3 +- drivers/gpu/drm/nouveau/nvkm/subdev/bios/base.c | 2 +- drivers/gpu/drm/radeon/ni_dpm.c | 6 +- drivers/gpu/drm/rockchip/rockchip_drm_vop.c | 3 + drivers/gpu/drm/vc4/vc4_dsi.c | 6 +- drivers/hid/hid-alps.c | 2 + drivers/hid/hid-cp2112.c | 5 + drivers/hid/wacom_sys.c | 2 +- drivers/hid/wacom_wac.c | 43 +++--- drivers/hwtracing/intel_th/pci.c | 15 ++ drivers/i2c/busses/i2c-cadence.c | 10 +- drivers/i2c/i2c-core-base.c | 3 +- drivers/i2c/muxes/i2c-mux-gpmux.c | 1 + drivers/iio/light/isl29028.c | 2 +- drivers/infiniband/hw/hfi1/file_ops.c | 4 +- drivers/infiniband/sw/rxe/rxe_qp.c | 12 +- drivers/iommu/exynos-iommu.c | 6 +- drivers/iommu/qcom_iommu.c | 7 +- drivers/irqchip/irq-tegra.c | 10 +- drivers/md/dm-raid.c | 4 +- drivers/md/dm-writecache.c | 2 +- drivers/md/dm.c | 5 + drivers/md/raid10.c | 5 +- drivers/md/raid5.c | 2 +- drivers/media/pci/tw686x/tw686x-core.c | 18 ++- drivers/media/platform/mtk-mdp/mtk_mdp_ipi.h | 2 + drivers/media/usb/hdpvr/hdpvr-video.c | 2 +- drivers/memstick/core/ms_block.c | 11 +- drivers/mfd/t7l66xb.c | 6 +- drivers/misc/cardreader/rtsx_pcr.c | 6 +- drivers/misc/cxl/irq.c | 1 + drivers/mmc/host/cavium-octeon.c | 1 + drivers/mmc/host/cavium-thunderx.c | 4 +- drivers/mmc/host/pxamci.c | 4 +- drivers/mmc/host/sdhci-of-at91.c | 9 +- drivers/mmc/host/sdhci-of-esdhc.c | 1 + drivers/mtd/devices/st_spi_fsm.c | 8 +- drivers/mtd/maps/physmap_of_versatile.c | 2 + drivers/mtd/sm_ftl.c | 2 +- drivers/net/can/pch_can.c | 8 +- drivers/net/can/rcar/rcar_can.c | 8 +- drivers/net/can/sja1000/sja1000.c | 7 +- drivers/net/can/spi/hi311x.c | 5 +- drivers/net/can/sun4i_can.c | 9 +- drivers/net/can/usb/ems_usb.c | 2 +- drivers/net/can/usb/kvaser_usb/kvaser_usb_hydra.c | 12 +- drivers/net/can/usb/kvaser_usb/kvaser_usb_leaf.c | 6 +- drivers/net/can/usb/usb_8dev.c | 7 +- drivers/net/ethernet/freescale/fec_ptp.c | 6 +- drivers/net/ethernet/intel/i40e/i40e_main.c | 4 +- drivers/net/ethernet/intel/igb/igb.h | 2 + drivers/net/ethernet/intel/igb/igb_main.c | 12 +- drivers/net/ethernet/mellanox/mlx5/core/en.h | 2 +- drivers/net/geneve.c | 3 +- drivers/net/netdevsim/bpf.c | 8 +- drivers/net/usb/ax88179_178a.c | 16 +-- drivers/net/usb/usbnet.c | 8 +- drivers/net/wireless/ath/ath10k/snoc.c | 5 +- drivers/net/wireless/ath/ath9k/htc.h | 10 +- drivers/net/wireless/ath/ath9k/htc_drv_init.c | 3 +- drivers/net/wireless/ath/wil6210/debugfs.c | 18 +-- drivers/net/wireless/intel/iwlegacy/4965-rs.c | 5 +- drivers/net/wireless/intersil/p54/main.c | 2 +- drivers/net/wireless/intersil/p54/p54spi.c | 3 +- drivers/net/wireless/mac80211_hwsim.c | 14 +- drivers/net/wireless/marvell/libertas/if_usb.c | 1 + drivers/net/wireless/mediatek/mt76/mac80211.c | 1 + drivers/net/wireless/realtek/rtlwifi/debug.c | 8 +- drivers/ntb/test/ntb_tool.c | 8 +- drivers/pci/pcie/portdrv_core.c | 9 +- drivers/pci/quirks.c | 3 + drivers/pinctrl/nomadik/pinctrl-nomadik.c | 4 +- drivers/pinctrl/qcom/pinctrl-msm8916.c | 4 +- drivers/platform/olpc/olpc-ec.c | 2 +- drivers/regulator/of_regulator.c | 6 +- drivers/remoteproc/qcom_wcnss.c | 10 +- drivers/rpmsg/qcom_smd.c | 1 + drivers/s390/char/zcore.c | 11 +- drivers/s390/cio/vfio_ccw_drv.c | 14 +- drivers/s390/scsi/zfcp_fc.c | 29 ++-- drivers/s390/scsi/zfcp_fc.h | 6 +- drivers/s390/scsi/zfcp_fsf.c | 4 +- drivers/scsi/sg.c | 57 +++++--- drivers/scsi/smartpqi/smartpqi_init.c | 4 +- drivers/soc/amlogic/meson-mx-socinfo.c | 1 + drivers/soc/fsl/guts.c | 2 +- drivers/soundwire/bus_type.c | 8 +- drivers/staging/rtl8192u/r8192U.h | 2 +- drivers/staging/rtl8192u/r8192U_dm.c | 38 +++-- drivers/staging/rtl8192u/r8192U_dm.h | 2 +- drivers/tee/tee_core.c | 4 + drivers/thermal/thermal_sysfs.c | 10 +- drivers/tty/n_gsm.c | 90 ++++++++++-- drivers/tty/serial/8250/8250_dw.c | 3 + drivers/tty/serial/mvebu-uart.c | 11 ++ drivers/tty/serial/ucc_uart.c | 2 + drivers/tty/vt/vt.c | 2 +- drivers/usb/core/hcd.c | 26 ++-- drivers/usb/gadget/legacy/inode.c | 1 + drivers/usb/gadget/udc/Kconfig | 2 +- drivers/usb/host/ehci-ppc-of.c | 1 + drivers/usb/host/ohci-nxp.c | 1 + drivers/usb/host/ohci-ppc-of.c | 1 + drivers/usb/renesas_usbhs/rza.c | 4 + drivers/usb/serial/sierra.c | 3 +- drivers/usb/serial/usb-serial.c | 2 +- drivers/usb/serial/usb_wwan.c | 3 +- drivers/vfio/vfio.c | 1 + drivers/video/fbdev/amba-clcd.c | 24 +++- drivers/video/fbdev/arkfb.c | 9 +- drivers/video/fbdev/core/fbcon.c | 8 +- drivers/video/fbdev/i740fb.c | 9 +- drivers/video/fbdev/s3fb.c | 2 + drivers/video/fbdev/sis/init.c | 4 +- drivers/video/fbdev/vt8623fb.c | 2 + drivers/virt/vboxguest/vboxguest_linux.c | 9 +- drivers/xen/xenbus/xenbus_dev_frontend.c | 4 +- fs/attr.c | 2 + fs/btrfs/disk-io.c | 14 ++ fs/btrfs/raid56.c | 74 +++++++--- fs/btrfs/tree-log.c | 4 +- fs/cifs/smb2ops.c | 5 +- fs/ext2/super.c | 12 +- fs/ext4/inline.c | 3 + fs/ext4/inode.c | 10 +- fs/ext4/migrate.c | 4 +- fs/ext4/namei.c | 23 ++- fs/ext4/resize.c | 11 ++ fs/ext4/xattr.c | 6 +- fs/ext4/xattr.h | 13 ++ fs/f2fs/node.c | 6 +- fs/fuse/inode.c | 6 + fs/jbd2/transaction.c | 14 +- fs/namei.c | 2 + fs/nfs/nfs4idmap.c | 46 +++--- fs/nfs/nfs4proc.c | 14 +- fs/overlayfs/export.c | 2 +- fs/splice.c | 10 +- include/acpi/cppc_acpi.h | 2 +- include/asm-generic/bitops/atomic.h | 6 - include/linux/buffer_head.h | 25 +++- include/linux/kfifo.h | 2 +- include/linux/kvm_host.h | 28 +++- include/linux/mfd/t7l66xb.h | 1 - include/linux/nmi.h | 2 + include/linux/pci_ids.h | 2 + include/linux/usb/hcd.h | 1 + include/sound/core.h | 8 ++ include/trace/events/spmi.h | 12 +- include/uapi/linux/can/error.h | 5 +- kernel/bpf/verifier.c | 1 + kernel/kprobes.c | 3 +- kernel/power/user.c | 13 +- kernel/profile.c | 7 + kernel/sched/rt.c | 15 +- kernel/trace/trace_events.c | 1 + kernel/trace/trace_probe.c | 4 +- kernel/watchdog.c | 21 ++- lib/list_debug.c | 12 +- mm/mmap.c | 1 - net/9p/client.c | 5 +- net/bluetooth/l2cap_core.c | 13 +- net/dccp/proto.c | 10 +- net/ipv4/tcp_output.c | 30 ++-- net/netfilter/nf_tables_api.c | 7 +- net/rds/ib_recv.c | 1 + net/rose/af_rose.c | 11 +- net/rose/rose_route.c | 2 + net/sched/cls_route.c | 12 +- net/sunrpc/backchannel_rqst.c | 14 ++ net/vmw_vsock/af_vsock.c | 10 +- scripts/Makefile.gcc-plugins | 2 +- scripts/faddr2line | 4 +- security/apparmor/apparmorfs.c | 2 +- security/apparmor/audit.c | 2 +- security/apparmor/domain.c | 2 +- security/apparmor/include/lib.h | 5 + security/apparmor/include/policy.h | 2 +- security/apparmor/label.c | 13 +- security/apparmor/mount.c | 8 +- security/selinux/ss/policydb.h | 2 + sound/core/info.c | 6 +- sound/core/misc.c | 94 +++++++++++++ sound/core/timer.c | 11 +- sound/pci/hda/patch_cirrus.c | 1 + sound/pci/hda/patch_conexant.c | 11 +- sound/soc/codecs/da7210.c | 2 + sound/soc/mediatek/mt6797/mt6797-mt6351.c | 6 +- sound/soc/mediatek/mt8173/mt8173-rt5650-rt5676.c | 10 +- sound/soc/mediatek/mt8173/mt8173-rt5650.c | 9 +- sound/soc/qcom/qdsp6/q6adm.c | 2 +- sound/usb/bcd2000/bcd2000.c | 3 +- tools/build/feature/test-libcrypto.c | 15 +- tools/lib/bpf/libbpf.c | 9 +- tools/perf/util/genelf.c | 6 +- tools/testing/selftests/bpf/test_align.c | 41 +++--- .../testing/selftests/timers/clocksource-switch.c | 6 +- tools/testing/selftests/timers/valid-adjtimex.c | 2 +- tools/thermal/tmon/sysfs.c | 24 ++-- tools/thermal/tmon/tmon.h | 3 + virt/kvm/kvm_main.c | 10 +- 276 files changed, 1886 insertions(+), 902 deletions(-)
From: Nick Desaulniers ndesaulniers@google.com
commit 0d362be5b14200b77ecc2127936a5ff82fbffe41 upstream.
Users of GNU ld (BFD) from binutils 2.39+ will observe multiple instances of a new warning when linking kernels in the form:
ld: warning: vmlinux: missing .note.GNU-stack section implies executable stack ld: NOTE: This behaviour is deprecated and will be removed in a future version of the linker ld: warning: vmlinux has a LOAD segment with RWX permissions
Generally, we would like to avoid the stack being executable. Because there could be a need for the stack to be executable, assembler sources have to opt-in to this security feature via explicit creation of the .note.GNU-stack feature (which compilers create by default) or command line flag --noexecstack. Or we can simply tell the linker the production of such sections is irrelevant and to link the stack as --noexecstack.
LLVM's LLD linker defaults to -z noexecstack, so this flag isn't strictly necessary when linking with LLD, only BFD, but it doesn't hurt to be explicit here for all linkers IMO. --no-warn-rwx-segments is currently BFD specific and only available in the current latest release, so it's wrapped in an ld-option check.
While the kernel makes extensive usage of ELF sections, it doesn't use permissions from ELF segments.
Link: https://lore.kernel.org/linux-block/3af4127a-f453-4cf7-f133-a181cce06f73@ker... Link: https://sourceware.org/git/?p=binutils-gdb.git%3Ba=commit%3Bh=ba951afb99912d... Link: https://github.com/llvm/llvm-project/issues/57009 Reported-and-tested-by: Jens Axboe axboe@kernel.dk Suggested-by: Fangrui Song maskray@google.com Signed-off-by: Nick Desaulniers ndesaulniers@google.com Signed-off-by: Linus Torvalds torvalds@linux-foundation.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- Makefile | 3 +++ 1 file changed, 3 insertions(+)
--- a/Makefile +++ b/Makefile @@ -876,6 +876,9 @@ LDFLAGS_BUILD_ID := $(call ld-option, -- KBUILD_LDFLAGS_MODULE += $(LDFLAGS_BUILD_ID) LDFLAGS_vmlinux += $(LDFLAGS_BUILD_ID)
+KBUILD_LDFLAGS += -z noexecstack +KBUILD_LDFLAGS += $(call ld-option,--no-warn-rwx-segments) + ifeq ($(CONFIG_STRIP_ASM_SYMS),y) LDFLAGS_vmlinux += $(call ld-option, -X,) endif
From: Nick Desaulniers ndesaulniers@google.com
commit ffcf9c5700e49c0aee42dcba9a12ba21338e8136 upstream.
Users of GNU ld (BFD) from binutils 2.39+ will observe multiple instances of a new warning when linking kernels in the form:
ld: warning: arch/x86/boot/pmjump.o: missing .note.GNU-stack section implies executable stack ld: NOTE: This behaviour is deprecated and will be removed in a future version of the linker ld: warning: arch/x86/boot/compressed/vmlinux has a LOAD segment with RWX permissions
Generally, we would like to avoid the stack being executable. Because there could be a need for the stack to be executable, assembler sources have to opt-in to this security feature via explicit creation of the .note.GNU-stack feature (which compilers create by default) or command line flag --noexecstack. Or we can simply tell the linker the production of such sections is irrelevant and to link the stack as --noexecstack.
LLVM's LLD linker defaults to -z noexecstack, so this flag isn't strictly necessary when linking with LLD, only BFD, but it doesn't hurt to be explicit here for all linkers IMO. --no-warn-rwx-segments is currently BFD specific and only available in the current latest release, so it's wrapped in an ld-option check.
While the kernel makes extensive usage of ELF sections, it doesn't use permissions from ELF segments.
Link: https://lore.kernel.org/linux-block/3af4127a-f453-4cf7-f133-a181cce06f73@ker... Link: https://sourceware.org/git/?p=binutils-gdb.git%3Ba=commit%3Bh=ba951afb99912d... Link: https://github.com/llvm/llvm-project/issues/57009 Reported-and-tested-by: Jens Axboe axboe@kernel.dk Suggested-by: Fangrui Song maskray@google.com Signed-off-by: Nick Desaulniers ndesaulniers@google.com Signed-off-by: Linus Torvalds torvalds@linux-foundation.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/x86/boot/Makefile | 2 +- arch/x86/boot/compressed/Makefile | 4 ++++ arch/x86/entry/vdso/Makefile | 2 +- 3 files changed, 6 insertions(+), 2 deletions(-)
--- a/arch/x86/boot/Makefile +++ b/arch/x86/boot/Makefile @@ -100,7 +100,7 @@ $(obj)/zoffset.h: $(obj)/compressed/vmli AFLAGS_header.o += -I$(objtree)/$(obj) $(obj)/header.o: $(obj)/zoffset.h
-LDFLAGS_setup.elf := -m elf_i386 -T +LDFLAGS_setup.elf := -m elf_i386 -z noexecstack -T $(obj)/setup.elf: $(src)/setup.ld $(SETUP_OBJS) FORCE $(call if_changed,ld)
--- a/arch/x86/boot/compressed/Makefile +++ b/arch/x86/boot/compressed/Makefile @@ -57,6 +57,10 @@ else KBUILD_LDFLAGS += $(shell $(LD) --help 2>&1 | grep -q "-z noreloc-overflow" \ && echo "-z noreloc-overflow -pie --no-dynamic-linker") endif + +KBUILD_LDFLAGS += -z noexecstack +KBUILD_LDFLAGS += $(call ld-option,--no-warn-rwx-segments) + LDFLAGS_vmlinux := -T
hostprogs-y := mkpiggy --- a/arch/x86/entry/vdso/Makefile +++ b/arch/x86/entry/vdso/Makefile @@ -172,7 +172,7 @@ quiet_cmd_vdso = VDSO $@
VDSO_LDFLAGS = -shared $(call ld-option, --hash-style=both) \ $(call ld-option, --build-id) $(call ld-option, --eh-frame-hdr) \ - -Bsymbolic + -Bsymbolic -z noexecstack GCOV_PROFILE := n
#
From: Zheyu Ma zheyuma97@gmail.com
commit ffb2759df7efbc00187bfd9d1072434a13a54139 upstream.
When the driver fails in snd_card_register() at probe time, it will free the 'bcd2k->midi_out_urb' before killing it, which may cause a UAF bug.
The following log can reveal it:
[ 50.727020] BUG: KASAN: use-after-free in bcd2000_input_complete+0x1f1/0x2e0 [snd_bcd2000] [ 50.727623] Read of size 8 at addr ffff88810fab0e88 by task swapper/4/0 [ 50.729530] Call Trace: [ 50.732899] bcd2000_input_complete+0x1f1/0x2e0 [snd_bcd2000]
Fix this by adding usb_kill_urb() before usb_free_urb().
Fixes: b47a22290d58 ("ALSA: MIDI driver for Behringer BCD2000 USB device") Signed-off-by: Zheyu Ma zheyuma97@gmail.com Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20220715010515.2087925-1-zheyuma97@gmail.com Signed-off-by: Takashi Iwai tiwai@suse.de Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- sound/usb/bcd2000/bcd2000.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
--- a/sound/usb/bcd2000/bcd2000.c +++ b/sound/usb/bcd2000/bcd2000.c @@ -357,7 +357,8 @@ static int bcd2000_init_midi(struct bcd2 static void bcd2000_free_usb_related_resources(struct bcd2000 *bcd2k, struct usb_interface *interface) { - /* usb_kill_urb not necessary, urb is aborted automatically */ + usb_kill_urb(bcd2k->midi_out_urb); + usb_kill_urb(bcd2k->midi_in_urb);
usb_free_urb(bcd2k->midi_out_urb); usb_free_urb(bcd2k->midi_in_urb);
From: Jeongik Cha jeongik@google.com
commit 4ee186fa7e40ae06ebbfbad77e249e3746e14114 upstream.
A pending packet uses a cookie as an unique key, but it can be duplicated because it didn't use atomic operators.
And also, a pending packet can be null in hwsim_tx_info_frame_received_nl due to race condition with mac80211_hwsim_stop.
For this, * Use an atomic type and operator for a cookie * Add a lock around the loop for pending packets
Signed-off-by: Jeongik Cha jeongik@google.com Link: https://lore.kernel.org/r/20220704084354.3556326-1-jeongik@google.com Signed-off-by: Johannes Berg johannes.berg@intel.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/wireless/mac80211_hwsim.c | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-)
--- a/drivers/net/wireless/mac80211_hwsim.c +++ b/drivers/net/wireless/mac80211_hwsim.c @@ -552,7 +552,7 @@ struct mac80211_hwsim_data { bool ps_poll_pending; struct dentry *debugfs;
- uintptr_t pending_cookie; + atomic64_t pending_cookie; struct sk_buff_head pending; /* packets pending */ /* * Only radios in the same group can communicate together (the @@ -1067,7 +1067,7 @@ static void mac80211_hwsim_tx_frame_nl(s int i; struct hwsim_tx_rate tx_attempts[IEEE80211_TX_MAX_RATES]; struct hwsim_tx_rate_flag tx_attempts_flags[IEEE80211_TX_MAX_RATES]; - uintptr_t cookie; + u64 cookie;
if (data->ps != PS_DISABLED) hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM); @@ -1136,8 +1136,7 @@ static void mac80211_hwsim_tx_frame_nl(s goto nla_put_failure;
/* We create a cookie to identify this skb */ - data->pending_cookie++; - cookie = data->pending_cookie; + cookie = (u64)atomic64_inc_return(&data->pending_cookie); info->rate_driver_data[0] = (void *)cookie; if (nla_put_u64_64bit(skb, HWSIM_ATTR_COOKIE, cookie, HWSIM_ATTR_PAD)) goto nla_put_failure; @@ -3120,6 +3119,7 @@ static int hwsim_tx_info_frame_received_ const u8 *src; unsigned int hwsim_flags; int i; + unsigned long flags; bool found = false;
if (!info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER] || @@ -3144,18 +3144,20 @@ static int hwsim_tx_info_frame_received_ goto out;
/* look for the skb matching the cookie passed back from user */ + spin_lock_irqsave(&data2->pending.lock, flags); skb_queue_walk_safe(&data2->pending, skb, tmp) { u64 skb_cookie;
txi = IEEE80211_SKB_CB(skb); - skb_cookie = (u64)(uintptr_t)txi->rate_driver_data[0]; + skb_cookie = (u64)txi->rate_driver_data[0];
if (skb_cookie == ret_skb_cookie) { - skb_unlink(skb, &data2->pending); + __skb_unlink(skb, &data2->pending); found = true; break; } } + spin_unlock_irqrestore(&data2->pending.lock, flags);
/* not found */ if (!found)
From: Johannes Berg johannes.berg@intel.com
commit 58b6259d820d63c2adf1c7541b54cce5a2ae6073 upstream.
The robots report that we're now casting to a differently sized integer, which is correct, and the previous patch had erroneously removed it.
Reported-by: kernel test robot lkp@intel.com Fixes: 4ee186fa7e40 ("wifi: mac80211_hwsim: fix race condition in pending packet") Signed-off-by: Johannes Berg johannes.berg@intel.com Cc: Jeongik Cha jeongik@google.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/wireless/mac80211_hwsim.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/net/wireless/mac80211_hwsim.c +++ b/drivers/net/wireless/mac80211_hwsim.c @@ -3149,7 +3149,7 @@ static int hwsim_tx_info_frame_received_ u64 skb_cookie;
txi = IEEE80211_SKB_CB(skb); - skb_cookie = (u64)txi->rate_driver_data[0]; + skb_cookie = (u64)(uintptr_t)txi->rate_driver_data[0];
if (skb_cookie == ret_skb_cookie) { __skb_unlink(skb, &data2->pending);
From: Johannes Berg johannes.berg@intel.com
commit cc5250cdb43d444061412df7fae72d2b4acbdf97 upstream.
We won't really have enough skbs to need a 64-bit cookie, and on 32-bit platforms storing the 64-bit cookie into the void *rate_driver_data doesn't work anyway. Switch back to using just a 32-bit cookie and uintptr_t for the type to avoid compiler warnings about all this.
Fixes: 4ee186fa7e40 ("wifi: mac80211_hwsim: fix race condition in pending packet") Signed-off-by: Johannes Berg johannes.berg@intel.com Cc: Jeongik Cha jeongik@google.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/wireless/mac80211_hwsim.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-)
--- a/drivers/net/wireless/mac80211_hwsim.c +++ b/drivers/net/wireless/mac80211_hwsim.c @@ -552,7 +552,7 @@ struct mac80211_hwsim_data { bool ps_poll_pending; struct dentry *debugfs;
- atomic64_t pending_cookie; + atomic_t pending_cookie; struct sk_buff_head pending; /* packets pending */ /* * Only radios in the same group can communicate together (the @@ -1067,7 +1067,7 @@ static void mac80211_hwsim_tx_frame_nl(s int i; struct hwsim_tx_rate tx_attempts[IEEE80211_TX_MAX_RATES]; struct hwsim_tx_rate_flag tx_attempts_flags[IEEE80211_TX_MAX_RATES]; - u64 cookie; + uintptr_t cookie;
if (data->ps != PS_DISABLED) hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM); @@ -1136,7 +1136,7 @@ static void mac80211_hwsim_tx_frame_nl(s goto nla_put_failure;
/* We create a cookie to identify this skb */ - cookie = (u64)atomic64_inc_return(&data->pending_cookie); + cookie = atomic_inc_return(&data->pending_cookie); info->rate_driver_data[0] = (void *)cookie; if (nla_put_u64_64bit(skb, HWSIM_ATTR_COOKIE, cookie, HWSIM_ATTR_PAD)) goto nla_put_failure; @@ -3146,10 +3146,10 @@ static int hwsim_tx_info_frame_received_ /* look for the skb matching the cookie passed back from user */ spin_lock_irqsave(&data2->pending.lock, flags); skb_queue_walk_safe(&data2->pending, skb, tmp) { - u64 skb_cookie; + uintptr_t skb_cookie;
txi = IEEE80211_SKB_CB(skb); - skb_cookie = (u64)(uintptr_t)txi->rate_driver_data[0]; + skb_cookie = (uintptr_t)txi->rate_driver_data[0];
if (skb_cookie == ret_skb_cookie) { __skb_unlink(skb, &data2->pending);
From: Mikulas Patocka mpatocka@redhat.com
commit d4252071b97d2027d246f6a82cbee4d52f618b47 upstream.
Let's have a look at this piece of code in __bread_slow:
get_bh(bh); bh->b_end_io = end_buffer_read_sync; submit_bh(REQ_OP_READ, 0, bh); wait_on_buffer(bh); if (buffer_uptodate(bh)) return bh;
Neither wait_on_buffer nor buffer_uptodate contain any memory barrier. Consequently, if someone calls sb_bread and then reads the buffer data, the read of buffer data may be executed before wait_on_buffer(bh) on architectures with weak memory ordering and it may return invalid data.
Fix this bug by adding a memory barrier to set_buffer_uptodate and an acquire barrier to buffer_uptodate (in a similar way as folio_test_uptodate and folio_mark_uptodate).
Signed-off-by: Mikulas Patocka mpatocka@redhat.com Reviewed-by: Matthew Wilcox (Oracle) willy@infradead.org Cc: stable@vger.kernel.org Signed-off-by: Linus Torvalds torvalds@linux-foundation.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- include/linux/buffer_head.h | 25 ++++++++++++++++++++++++- 1 file changed, 24 insertions(+), 1 deletion(-)
--- a/include/linux/buffer_head.h +++ b/include/linux/buffer_head.h @@ -117,7 +117,6 @@ static __always_inline int test_clear_bu * of the form "mark_buffer_foo()". These are higher-level functions which * do something in addition to setting a b_state bit. */ -BUFFER_FNS(Uptodate, uptodate) BUFFER_FNS(Dirty, dirty) TAS_BUFFER_FNS(Dirty, dirty) BUFFER_FNS(Lock, locked) @@ -135,6 +134,30 @@ BUFFER_FNS(Meta, meta) BUFFER_FNS(Prio, prio) BUFFER_FNS(Defer_Completion, defer_completion)
+static __always_inline void set_buffer_uptodate(struct buffer_head *bh) +{ + /* + * make it consistent with folio_mark_uptodate + * pairs with smp_load_acquire in buffer_uptodate + */ + smp_mb__before_atomic(); + set_bit(BH_Uptodate, &bh->b_state); +} + +static __always_inline void clear_buffer_uptodate(struct buffer_head *bh) +{ + clear_bit(BH_Uptodate, &bh->b_state); +} + +static __always_inline int buffer_uptodate(const struct buffer_head *bh) +{ + /* + * make it consistent with folio_test_uptodate + * pairs with smp_mb__before_atomic in set_buffer_uptodate + */ + return (smp_load_acquire(&bh->b_state) & (1UL << BH_Uptodate)) != 0; +} + #define bh_offset(bh) ((unsigned long)(bh)->b_data & ~PAGE_MASK)
/* If we *know* page->private refers to buffer_heads */
From: Ping Cheng pinglinux@gmail.com
commit d6b675687a4ab4dba684716d97c8c6f81bf10905 upstream.
Touch switch state is received through WACOM_PAD_FIELD. However, it is reported by touch_input. Don't register pad_input if no other pad events require the interface.
Cc: stable@vger.kernel.org Signed-off-by: Ping Cheng ping.cheng@wacom.com Reviewed-by: Jason Gerecke jason.gerecke@wacom.com Signed-off-by: Jiri Kosina jkosina@suse.cz Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/hid/wacom_sys.c | 2 +- drivers/hid/wacom_wac.c | 43 +++++++++++++++++++++++++------------------ 2 files changed, 26 insertions(+), 19 deletions(-)
--- a/drivers/hid/wacom_sys.c +++ b/drivers/hid/wacom_sys.c @@ -2095,7 +2095,7 @@ static int wacom_register_inputs(struct
error = wacom_setup_pad_input_capabilities(pad_input_dev, wacom_wac); if (error) { - /* no pad in use on this interface */ + /* no pad events using this interface */ input_free_device(pad_input_dev); wacom_wac->pad_input = NULL; pad_input_dev = NULL; --- a/drivers/hid/wacom_wac.c +++ b/drivers/hid/wacom_wac.c @@ -1954,7 +1954,6 @@ static void wacom_wac_pad_usage_mapping( wacom_wac->has_mute_touch_switch = true; usage->type = EV_SW; usage->code = SW_MUTE_DEVICE; - features->device_type |= WACOM_DEVICETYPE_PAD; break; case WACOM_HID_WD_TOUCHSTRIP: wacom_map_usage(input, usage, field, EV_ABS, ABS_RX, 0); @@ -2034,6 +2033,30 @@ static void wacom_wac_pad_event(struct h wacom_wac->hid_data.inrange_state |= value; }
+ /* Process touch switch state first since it is reported through touch interface, + * which is indepentent of pad interface. In the case when there are no other pad + * events, the pad interface will not even be created. + */ + if ((equivalent_usage == WACOM_HID_WD_MUTE_DEVICE) || + (equivalent_usage == WACOM_HID_WD_TOUCHONOFF)) { + if (wacom_wac->shared->touch_input) { + bool *is_touch_on = &wacom_wac->shared->is_touch_on; + + if (equivalent_usage == WACOM_HID_WD_MUTE_DEVICE && value) + *is_touch_on = !(*is_touch_on); + else if (equivalent_usage == WACOM_HID_WD_TOUCHONOFF) + *is_touch_on = value; + + input_report_switch(wacom_wac->shared->touch_input, + SW_MUTE_DEVICE, !(*is_touch_on)); + input_sync(wacom_wac->shared->touch_input); + } + return; + } + + if (!input) + return; + switch (equivalent_usage) { case WACOM_HID_WD_TOUCHRING: /* @@ -2063,22 +2086,6 @@ static void wacom_wac_pad_event(struct h input_event(input, usage->type, usage->code, 0); break;
- case WACOM_HID_WD_MUTE_DEVICE: - case WACOM_HID_WD_TOUCHONOFF: - if (wacom_wac->shared->touch_input) { - bool *is_touch_on = &wacom_wac->shared->is_touch_on; - - if (equivalent_usage == WACOM_HID_WD_MUTE_DEVICE && value) - *is_touch_on = !(*is_touch_on); - else if (equivalent_usage == WACOM_HID_WD_TOUCHONOFF) - *is_touch_on = value; - - input_report_switch(wacom_wac->shared->touch_input, - SW_MUTE_DEVICE, !(*is_touch_on)); - input_sync(wacom_wac->shared->touch_input); - } - break; - case WACOM_HID_WD_MODE_CHANGE: if (wacom_wac->is_direct_mode != value) { wacom_wac->is_direct_mode = value; @@ -2719,7 +2726,7 @@ void wacom_wac_event(struct hid_device * /* usage tests must precede field tests */ if (WACOM_BATTERY_USAGE(usage)) wacom_wac_battery_event(hdev, field, usage, value); - else if (WACOM_PAD_FIELD(field) && wacom->wacom_wac.pad_input) + else if (WACOM_PAD_FIELD(field)) wacom_wac_pad_event(hdev, field, usage, value); else if (WACOM_PEN_FIELD(field) && wacom->wacom_wac.pen_input) wacom_wac_pen_event(hdev, field, usage, value);
From: Maciej S. Szmigiero maciej.szmigiero@oracle.com
commit f17c31c48e5cde9895a491d91c424eeeada3e134 upstream.
Don't BUG/WARN on interrupt injection due to GIF being cleared, since it's trivial for userspace to force the situation via KVM_SET_VCPU_EVENTS (even if having at least a WARN there would be correct for KVM internally generated injections).
kernel BUG at arch/x86/kvm/svm/svm.c:3386! invalid opcode: 0000 [#1] SMP CPU: 15 PID: 926 Comm: smm_test Not tainted 5.17.0-rc3+ #264 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 0.0.0 02/06/2015 RIP: 0010:svm_inject_irq+0xab/0xb0 [kvm_amd] Code: <0f> 0b 0f 1f 00 0f 1f 44 00 00 80 3d ac b3 01 00 00 55 48 89 f5 53 RSP: 0018:ffffc90000b37d88 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff88810a234ac0 RCX: 0000000000000006 RDX: 0000000000000000 RSI: ffffc90000b37df7 RDI: ffff88810a234ac0 RBP: ffffc90000b37df7 R08: ffff88810a1fa410 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: ffff888109571000 R14: ffff88810a234ac0 R15: 0000000000000000 FS: 0000000001821380(0000) GS:ffff88846fdc0000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f74fc550008 CR3: 000000010a6fe000 CR4: 0000000000350ea0 Call Trace: <TASK> inject_pending_event+0x2f7/0x4c0 [kvm] kvm_arch_vcpu_ioctl_run+0x791/0x17a0 [kvm] kvm_vcpu_ioctl+0x26d/0x650 [kvm] __x64_sys_ioctl+0x82/0xb0 do_syscall_64+0x3b/0xc0 entry_SYSCALL_64_after_hwframe+0x44/0xae </TASK>
Fixes: 219b65dcf6c0 ("KVM: SVM: Improve nested interrupt injection") Cc: stable@vger.kernel.org Co-developed-by: Sean Christopherson seanjc@google.com Signed-off-by: Sean Christopherson seanjc@google.com Signed-off-by: Maciej S. Szmigiero maciej.szmigiero@oracle.com Message-Id: 35426af6e123cbe91ec7ce5132ce72521f02b1b5.1651440202.git.maciej.szmigiero@oracle.com Signed-off-by: Paolo Bonzini pbonzini@redhat.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/x86/kvm/svm.c | 2 -- 1 file changed, 2 deletions(-)
--- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -5142,8 +5142,6 @@ static void svm_set_irq(struct kvm_vcpu { struct vcpu_svm *svm = to_svm(vcpu);
- BUG_ON(!(gif_set(svm))); - trace_kvm_inj_virq(vcpu->arch.interrupt.nr); ++vcpu->stat.irq_injections;
From: Sean Christopherson seanjc@google.com
commit ec6e4d863258d4bfb36d48d5e3ef68140234d688 upstream.
Wait to mark the TSS as busy during LTR emulation until after all fault checks for the LTR have passed. Specifically, don't mark the TSS busy if the new TSS base is non-canonical.
Opportunistically drop the one-off !seg_desc.PRESENT check for TR as the only reason for the early check was to avoid marking a !PRESENT TSS as busy, i.e. the common !PRESENT is now done before setting the busy bit.
Fixes: e37a75a13cda ("KVM: x86: Emulator ignores LDTR/TR extended base on LLDT/LTR") Reported-by: syzbot+760a73552f47a8cd0fd9@syzkaller.appspotmail.com Cc: stable@vger.kernel.org Cc: Tetsuo Handa penguin-kernel@i-love.sakura.ne.jp Cc: Hou Wenlong houwenlong.hwl@antgroup.com Signed-off-by: Sean Christopherson seanjc@google.com Reviewed-by: Maxim Levitsky mlevitsk@redhat.com Link: https://lore.kernel.org/r/20220711232750.1092012-2-seanjc@google.com Signed-off-by: Sean Christopherson seanjc@google.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/x86/kvm/emulate.c | 19 +++++++++---------- 1 file changed, 9 insertions(+), 10 deletions(-)
--- a/arch/x86/kvm/emulate.c +++ b/arch/x86/kvm/emulate.c @@ -1708,16 +1708,6 @@ static int __load_segment_descriptor(str case VCPU_SREG_TR: if (seg_desc.s || (seg_desc.type != 1 && seg_desc.type != 9)) goto exception; - if (!seg_desc.p) { - err_vec = NP_VECTOR; - goto exception; - } - old_desc = seg_desc; - seg_desc.type |= 2; /* busy */ - ret = ctxt->ops->cmpxchg_emulated(ctxt, desc_addr, &old_desc, &seg_desc, - sizeof(seg_desc), &ctxt->exception); - if (ret != X86EMUL_CONTINUE) - return ret; break; case VCPU_SREG_LDTR: if (seg_desc.s || seg_desc.type != 2) @@ -1758,6 +1748,15 @@ static int __load_segment_descriptor(str ((u64)base3 << 32), ctxt)) return emulate_gp(ctxt, 0); } + + if (seg == VCPU_SREG_TR) { + old_desc = seg_desc; + seg_desc.type |= 2; /* busy */ + ret = ctxt->ops->cmpxchg_emulated(ctxt, desc_addr, &old_desc, &seg_desc, + sizeof(seg_desc), &ctxt->exception); + if (ret != X86EMUL_CONTINUE) + return ret; + } load: ctxt->ops->set_segment(ctxt, selector, &seg_desc, base3, seg); if (desc)
From: Sean Christopherson seanjc@google.com
commit 2626206963ace9e8bf92b6eea5ff78dd674c555c upstream.
When injecting a #GP on LLDT/LTR due to a non-canonical LDT/TSS base, set the error code to the selector. Intel SDM's says nothing about the #GP, but AMD's APM explicitly states that both LLDT and LTR set the error code to the selector, not zero.
Note, a non-canonical memory operand on LLDT/LTR does generate a #GP(0), but the KVM code in question is specific to the base from the descriptor.
Fixes: e37a75a13cda ("KVM: x86: Emulator ignores LDTR/TR extended base on LLDT/LTR") Cc: stable@vger.kernel.org Signed-off-by: Sean Christopherson seanjc@google.com Reviewed-by: Maxim Levitsky mlevitsk@redhat.com Link: https://lore.kernel.org/r/20220711232750.1092012-3-seanjc@google.com Signed-off-by: Sean Christopherson seanjc@google.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/x86/kvm/emulate.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
--- a/arch/x86/kvm/emulate.c +++ b/arch/x86/kvm/emulate.c @@ -1745,8 +1745,8 @@ static int __load_segment_descriptor(str if (ret != X86EMUL_CONTINUE) return ret; if (emul_is_noncanonical_address(get_desc_base(&seg_desc) | - ((u64)base3 << 32), ctxt)) - return emulate_gp(ctxt, 0); + ((u64)base3 << 32), ctxt)) + return emulate_gp(ctxt, err_code); }
if (seg == VCPU_SREG_TR) {
From: Meng Tang tangmeng@uniontech.com
commit f83bb2592482fe94c6eea07a8121763c80f36ce5 upstream.
There is another LENOVO 20149 (Type1Sku0) Notebook model with CX20590, the device PCI SSID is 17aa:3977, which headphones are not responding, that requires the quirk CXT_PINCFG_LENOVO_NOTEBOOK. Add the corresponding entry to the quirk table.
Signed-off-by: Meng Tang tangmeng@uniontech.com Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20220808073406.19460-1-tangmeng@uniontech.com Signed-off-by: Takashi Iwai tiwai@suse.de Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- sound/pci/hda/patch_conexant.c | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-)
--- a/sound/pci/hda/patch_conexant.c +++ b/sound/pci/hda/patch_conexant.c @@ -210,6 +210,7 @@ enum { CXT_PINCFG_LEMOTE_A1205, CXT_PINCFG_COMPAQ_CQ60, CXT_FIXUP_STEREO_DMIC, + CXT_PINCFG_LENOVO_NOTEBOOK, CXT_FIXUP_INC_MIC_BOOST, CXT_FIXUP_HEADPHONE_MIC_PIN, CXT_FIXUP_HEADPHONE_MIC, @@ -750,6 +751,14 @@ static const struct hda_fixup cxt_fixups .type = HDA_FIXUP_FUNC, .v.func = cxt_fixup_stereo_dmic, }, + [CXT_PINCFG_LENOVO_NOTEBOOK] = { + .type = HDA_FIXUP_PINS, + .v.pins = (const struct hda_pintbl[]) { + { 0x1a, 0x05d71030 }, + { } + }, + .chain_id = CXT_FIXUP_STEREO_DMIC, + }, [CXT_FIXUP_INC_MIC_BOOST] = { .type = HDA_FIXUP_FUNC, .v.func = cxt5066_increase_mic_boost, @@ -943,7 +952,7 @@ static const struct snd_pci_quirk cxt506 SND_PCI_QUIRK(0x17aa, 0x3905, "Lenovo G50-30", CXT_FIXUP_STEREO_DMIC), SND_PCI_QUIRK(0x17aa, 0x390b, "Lenovo G50-80", CXT_FIXUP_STEREO_DMIC), SND_PCI_QUIRK(0x17aa, 0x3975, "Lenovo U300s", CXT_FIXUP_STEREO_DMIC), - SND_PCI_QUIRK(0x17aa, 0x3977, "Lenovo IdeaPad U310", CXT_FIXUP_STEREO_DMIC), + SND_PCI_QUIRK(0x17aa, 0x3977, "Lenovo IdeaPad U310", CXT_PINCFG_LENOVO_NOTEBOOK), SND_PCI_QUIRK(0x17aa, 0x3978, "Lenovo G50-70", CXT_FIXUP_STEREO_DMIC), SND_PCI_QUIRK(0x17aa, 0x397b, "Lenovo S205", CXT_FIXUP_STEREO_DMIC), SND_PCI_QUIRK_VENDOR(0x17aa, "Thinkpad", CXT_FIXUP_THINKPAD_ACPI),
From: Allen Ballway ballway@chromium.org
commit 74bba640d69914cf832b87f6bbb700e5ba430672 upstream.
The 12,1 model requires the same configuration as the 12,2 model to enable headphones but has a different codec SSID. Adds 12,1 SSID for matching quirk.
[ re-sorted in SSID order by tiwai ]
Signed-off-by: Allen Ballway ballway@chromium.org Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20220810152701.1.I902c2e591bbf8de9acb649d1322fa1f2... Signed-off-by: Takashi Iwai tiwai@suse.de Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- sound/pci/hda/patch_cirrus.c | 1 + 1 file changed, 1 insertion(+)
--- a/sound/pci/hda/patch_cirrus.c +++ b/sound/pci/hda/patch_cirrus.c @@ -409,6 +409,7 @@ static const struct snd_pci_quirk cs420x
/* codec SSID */ SND_PCI_QUIRK(0x106b, 0x0600, "iMac 14,1", CS420X_IMAC27_122), + SND_PCI_QUIRK(0x106b, 0x0900, "iMac 12,1", CS420X_IMAC27_122), SND_PCI_QUIRK(0x106b, 0x1c00, "MacBookPro 8,1", CS420X_MBP81), SND_PCI_QUIRK(0x106b, 0x2000, "iMac 12,2", CS420X_IMAC27_122), SND_PCI_QUIRK(0x106b, 0x2800, "MacBookPro 10,1", CS420X_MBP101),
From: Tetsuo Handa penguin-kernel@I-love.SAKURA.ne.jp
commit af77c56aa35325daa2bc2bed5c2ebf169be61b86 upstream.
syzbot reports kernel infoleak at vcs_read() [1], for buffer can be read immediately after resize operation. Initialize buffer using kzalloc().
---------- #include <fcntl.h> #include <unistd.h> #include <sys/ioctl.h> #include <linux/fb.h>
int main(int argc, char *argv[]) { struct fb_var_screeninfo var = { }; const int fb_fd = open("/dev/fb0", 3); ioctl(fb_fd, FBIOGET_VSCREENINFO, &var); var.yres = 0x21; ioctl(fb_fd, FBIOPUT_VSCREENINFO, &var); return read(open("/dev/vcsu", O_RDONLY), &var, sizeof(var)) == -1; } ----------
Link: https://syzkaller.appspot.com/bug?extid=31a641689d43387f05d3 [1] Cc: stable stable@vger.kernel.org Reported-by: syzbot syzbot+31a641689d43387f05d3@syzkaller.appspotmail.com Reviewed-by: Jiri Slaby jirislaby@kernel.org Signed-off-by: Tetsuo Handa penguin-kernel@I-love.SAKURA.ne.jp Link: https://lore.kernel.org/r/4ef053cf-e796-fb5e-58b7-3ae58242a4ad@I-love.SAKURA... Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/tty/vt/vt.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/tty/vt/vt.c +++ b/drivers/tty/vt/vt.c @@ -351,7 +351,7 @@ static struct uni_screen *vc_uniscr_allo /* allocate everything in one go */ memsize = cols * rows * sizeof(char32_t); memsize += rows * sizeof(char32_t *); - p = vmalloc(memsize); + p = vzalloc(memsize); if (!p) return NULL;
From: David Howells dhowells@redhat.com
commit e2ebff9c57fe4eb104ce4768f6ebcccf76bef849 upstream.
If something manages to set the maximum file size to MAX_OFFSET+1, this can cause the xfs and ext4 filesystems at least to become corrupt.
Ordinarily, the kernel protects against userspace trying this by checking the value early in the truncate() and ftruncate() system calls calls - but there are at least two places that this check is bypassed:
(1) Cachefiles will round up the EOF of the backing file to DIO block size so as to allow DIO on the final block - but this might push the offset negative. It then calls notify_change(), but this inadvertently bypasses the checking. This can be triggered if someone puts an 8EiB-1 file on a server for someone else to try and access by, say, nfs.
(2) ksmbd doesn't check the value it is given in set_end_of_file_info() and then calls vfs_truncate() directly - which also bypasses the check.
In both cases, it is potentially possible for a network filesystem to cause a disk filesystem to be corrupted: cachefiles in the client's cache filesystem; ksmbd in the server's filesystem.
nfsd is okay as it checks the value, but we can then remove this check too.
Fix this by adding a check to inode_newsize_ok(), as called from setattr_prepare(), thereby catching the issue as filesystems set up to perform the truncate with minimal opportunity for bypassing the new check.
Fixes: 1f08c925e7a3 ("cachefiles: Implement backing file wrangling") Fixes: f44158485826 ("cifsd: add file operations") Signed-off-by: David Howells dhowells@redhat.com Reported-by: Jeff Layton jlayton@kernel.org Tested-by: Jeff Layton jlayton@kernel.org Reviewed-by: Namjae Jeon linkinjeon@kernel.org Cc: stable@kernel.org Acked-by: Alexander Viro viro@zeniv.linux.org.uk cc: Steve French sfrench@samba.org cc: Hyunchul Lee hyc.lee@gmail.com cc: Chuck Lever chuck.lever@oracle.com cc: Dave Wysochanski dwysocha@redhat.com Signed-off-by: Linus Torvalds torvalds@linux-foundation.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- fs/attr.c | 2 ++ 1 file changed, 2 insertions(+)
--- a/fs/attr.c +++ b/fs/attr.c @@ -134,6 +134,8 @@ EXPORT_SYMBOL(setattr_prepare); */ int inode_newsize_ok(const struct inode *inode, loff_t offset) { + if (offset < 0) + return -EINVAL; if (inode->i_size < offset) { unsigned long limit;
From: Yang Xu xuyang2018.jy@fujitsu.com
commit ac6800e279a22b28f4fc21439843025a0d5bf03e upstream.
All creation paths except for O_TMPFILE handle umask in the vfs directly if the filesystem doesn't support or enable POSIX ACLs. If the filesystem does then umask handling is deferred until posix_acl_create(). Because, O_TMPFILE misses umask handling in the vfs it will not honor umask settings. Fix this by adding the missing umask handling.
Link: https://lore.kernel.org/r/1657779088-2242-2-git-send-email-xuyang2018.jy@fuj... Fixes: 60545d0d4610 ("[O_TMPFILE] it's still short a few helpers, but infrastructure should be OK now...") Cc: stable@vger.kernel.org # 4.19+ Reported-by: Christian Brauner (Microsoft) brauner@kernel.org Reviewed-by: Darrick J. Wong djwong@kernel.org Reviewed-and-Tested-by: Jeff Layton jlayton@kernel.org Acked-by: Christian Brauner (Microsoft) brauner@kernel.org Signed-off-by: Yang Xu xuyang2018.jy@fujitsu.com Signed-off-by: Christian Brauner (Microsoft) brauner@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- fs/namei.c | 2 ++ 1 file changed, 2 insertions(+)
--- a/fs/namei.c +++ b/fs/namei.c @@ -3453,6 +3453,8 @@ struct dentry *vfs_tmpfile(struct dentry child = d_alloc(dentry, &slash_name); if (unlikely(!child)) goto out_err; + if (!IS_POSIXACL(dir)) + mode &= ~current_umask(); error = dir->i_op->tmpfile(dir, child, mode); if (error) goto out_err;
From: Rafael J. Wysocki rafael.j.wysocki@intel.com
commit d5a8aa5d7d80d21ab6b266f1bed4194b61746199 upstream.
If cooling_device_stats_setup() fails to create the stats object, it must clear the last slot in cooling_device_attr_groups that was initially empty (so as to make it possible to add stats attributes to the cooling device attribute groups).
Failing to do so may cause the stats attributes to be created by mistake for a device that doesn't have a stats object, because the slot in question might be populated previously during the registration of another cooling device.
Fixes: 8ea229511e06 ("thermal: Add cooling device's statistics in sysfs") Reported-by: Di Shen di.shen@unisoc.com Tested-by: Di Shen di.shen@unisoc.com Cc: 4.17+ stable@vger.kernel.org # 4.17+ Signed-off-by: Rafael J. Wysocki rafael.j.wysocki@intel.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/thermal/thermal_sysfs.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-)
--- a/drivers/thermal/thermal_sysfs.c +++ b/drivers/thermal/thermal_sysfs.c @@ -909,12 +909,13 @@ static const struct attribute_group cool
static void cooling_device_stats_setup(struct thermal_cooling_device *cdev) { + const struct attribute_group *stats_attr_group = NULL; struct cooling_dev_stats *stats; unsigned long states; int var;
if (cdev->ops->get_max_state(cdev, &states)) - return; + goto out;
states++; /* Total number of states is highest state + 1 */
@@ -924,7 +925,7 @@ static void cooling_device_stats_setup(s
stats = kzalloc(var, GFP_KERNEL); if (!stats) - return; + goto out;
stats->time_in_state = (ktime_t *)(stats + 1); stats->trans_table = (unsigned int *)(stats->time_in_state + states); @@ -934,9 +935,12 @@ static void cooling_device_stats_setup(s
spin_lock_init(&stats->lock);
+ stats_attr_group = &cooling_device_stats_attr_group; + +out: /* Fill the empty slot left in cooling_device_attr_groups */ var = ARRAY_SIZE(cooling_device_attr_groups) - 2; - cooling_device_attr_groups[var] = &cooling_device_stats_attr_group; + cooling_device_attr_groups[var] = stats_attr_group; }
static void cooling_device_stats_destroy(struct thermal_cooling_device *cdev)
From: Helge Deller deller@gmx.de
commit cad564ca557f8d3bb3b1fa965d9a2b3f6490ec69 upstream.
The user may use the fbcon=vc:<n1>-<n2> option to tell fbcon to take over the given range (n1...n2) of consoles. The value for n1 and n2 needs to be a positive number and up to (MAX_NR_CONSOLES - 1). The given values were not fully checked against those boundaries yet.
To fix the issue, convert first_fb_vc and last_fb_vc to unsigned integers and check them against the upper boundary, and make sure that first_fb_vc is smaller than last_fb_vc.
Cc: stable@vger.kernel.org # v4.19+ Reviewed-by: Daniel Vetter daniel.vetter@ffwll.ch Signed-off-by: Helge Deller deller@gmx.de Link: https://patchwork.freedesktop.org/patch/msgid/YpkYRMojilrtZIgM@p100 Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/video/fbdev/core/fbcon.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-)
--- a/drivers/video/fbdev/core/fbcon.c +++ b/drivers/video/fbdev/core/fbcon.c @@ -103,8 +103,8 @@ static int logo_lines; enums. */ static int logo_shown = FBCON_LOGO_CANSHOW; /* console mappings */ -static int first_fb_vc; -static int last_fb_vc = MAX_NR_CONSOLES - 1; +static unsigned int first_fb_vc; +static unsigned int last_fb_vc = MAX_NR_CONSOLES - 1; static int fbcon_is_default = 1; static int fbcon_has_exited; static int primary_device = -1; @@ -456,10 +456,12 @@ static int __init fb_console_setup(char options += 3; if (*options) first_fb_vc = simple_strtoul(options, &options, 10) - 1; - if (first_fb_vc < 0) + if (first_fb_vc >= MAX_NR_CONSOLES) first_fb_vc = 0; if (*options++ == '-') last_fb_vc = simple_strtoul(options, &options, 10) - 1; + if (last_fb_vc < first_fb_vc || last_fb_vc >= MAX_NR_CONSOLES) + last_fb_vc = MAX_NR_CONSOLES - 1; fbcon_is_default = 0; continue; }
From: Lukas Wunner lukas@wunner.de
commit a69e617e533edddf3fa3123149900f36e0a6dc74 upstream.
usbnet uses the work usbnet_deferred_kevent() to perform tasks which may sleep. On disconnect, completion of the work was originally awaited in ->ndo_stop(). But in 2003, that was moved to ->disconnect() by historic commit "[PATCH] USB: usbnet, prevent exotic rtnl deadlock":
https://git.kernel.org/tglx/history/c/0f138bbfd83c
The change was made because back then, the kernel's workqueue implementation did not allow waiting for a single work. One had to wait for completion of *all* work by calling flush_scheduled_work(), and that could deadlock when waiting for usbnet_deferred_kevent() with rtnl_mutex held in ->ndo_stop().
The commit solved one problem but created another: It causes a use-after-free in USB Ethernet drivers aqc111.c, asix_devices.c, ax88179_178a.c, ch9200.c and smsc75xx.c:
* If the drivers receive a link change interrupt immediately before disconnect, they raise EVENT_LINK_RESET in their (non-sleepable) ->status() callback and schedule usbnet_deferred_kevent(). * usbnet_deferred_kevent() invokes the driver's ->link_reset() callback, which calls netif_carrier_{on,off}(). * That in turn schedules the work linkwatch_event().
Because usbnet_deferred_kevent() is awaited after unregister_netdev(), netif_carrier_{on,off}() may operate on an unregistered netdev and linkwatch_event() may run after free_netdev(), causing a use-after-free.
In 2010, usbnet was changed to only wait for a single instance of usbnet_deferred_kevent() instead of *all* work by commit 23f333a2bfaf ("drivers/net: don't use flush_scheduled_work()").
Unfortunately the commit neglected to move the wait back to ->ndo_stop(). Rectify that omission at long last.
Reported-by: Jann Horn jannh@google.com Link: https://lore.kernel.org/netdev/CAG48ez0MHBbENX5gCdHAUXZ7h7s20LnepBF-pa5M=7Bi... Reported-by: Oleksij Rempel o.rempel@pengutronix.de Link: https://lore.kernel.org/netdev/20220315113841.GA22337@pengutronix.de/ Signed-off-by: Lukas Wunner lukas@wunner.de Cc: stable@vger.kernel.org Acked-by: Oliver Neukum oneukum@suse.com Link: https://lore.kernel.org/r/d1c87ebe9fc502bffcd1576e238d685ad08321e4.165598788... Signed-off-by: Jakub Kicinski kuba@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/usb/usbnet.c | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-)
--- a/drivers/net/usb/usbnet.c +++ b/drivers/net/usb/usbnet.c @@ -845,13 +845,11 @@ int usbnet_stop (struct net_device *net)
mpn = !test_and_clear_bit(EVENT_NO_RUNTIME_PM, &dev->flags);
- /* deferred work (task, timer, softirq) must also stop. - * can't flush_scheduled_work() until we drop rtnl (later), - * else workers could deadlock; so make workers a NOP. - */ + /* deferred work (timer, softirq, task) must also stop */ dev->flags = 0; del_timer_sync (&dev->delay); tasklet_kill (&dev->bh); + cancel_work_sync(&dev->kevent); if (!pm) usb_autopm_put_interface(dev->intf);
@@ -1614,8 +1612,6 @@ void usbnet_disconnect (struct usb_inter net = dev->net; unregister_netdev (net);
- cancel_work_sync(&dev->kevent); - usb_scuttle_anchored_urbs(&dev->deferred);
if (dev->driver_info->unbind)
From: Jiachen Zhang zhangjiachen.jaycee@bytedance.com
commit dd524b7f317de8d31d638cbfdc7be4cf9b770e42 upstream.
Some code paths cannot guarantee the inode have any dentry alias. So WARN_ON() all !dentry may flood the kernel logs.
For example, when an overlayfs inode is watched by inotifywait (1), and someone is trying to read the /proc/$(pidof inotifywait)/fdinfo/INOTIFY_FD, at that time if the dentry has been reclaimed by kernel (such as echo 2 > /proc/sys/vm/drop_caches), there will be a WARN_ON(). The printed call stack would be like:
? show_mark_fhandle+0xf0/0xf0 show_mark_fhandle+0x4a/0xf0 ? show_mark_fhandle+0xf0/0xf0 ? seq_vprintf+0x30/0x50 ? seq_printf+0x53/0x70 ? show_mark_fhandle+0xf0/0xf0 inotify_fdinfo+0x70/0x90 show_fdinfo.isra.4+0x53/0x70 seq_show+0x130/0x170 seq_read+0x153/0x440 vfs_read+0x94/0x150 ksys_read+0x5f/0xe0 do_syscall_64+0x59/0x1e0 entry_SYSCALL_64_after_hwframe+0x44/0xa9
So let's drop WARN_ON() to avoid kernel log flooding.
Reported-by: Hongbo Yin yinhongbo@bytedance.com Signed-off-by: Jiachen Zhang zhangjiachen.jaycee@bytedance.com Signed-off-by: Tianci Zhang zhangtianci.1997@bytedance.com Fixes: 8ed5eec9d6c4 ("ovl: encode pure upper file handles") Cc: stable@vger.kernel.org # v4.16 Signed-off-by: Miklos Szeredi mszeredi@redhat.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- fs/overlayfs/export.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/fs/overlayfs/export.c +++ b/fs/overlayfs/export.c @@ -277,7 +277,7 @@ static int ovl_encode_fh(struct inode *i return FILEID_INVALID;
dentry = d_find_any_alias(inode); - if (WARN_ON(!dentry)) + if (!dentry) return FILEID_INVALID;
type = ovl_dentry_to_fh(dentry, fid, max_len);
From: Helge Deller deller@gmx.de
commit cab56b51ec0e69128909cef4650e1907248d821b upstream.
Fix the output of /proc/iomem to show the real hardware device name including the pa_pathname, e.g. "Merlin 160 Core Centronics [8:16:0]". Up to now only the pa_pathname ("[8:16.0]") was shown.
Signed-off-by: Helge Deller deller@gmx.de Cc: stable@vger.kernel.org # v4.9+ Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/parisc/kernel/drivers.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-)
--- a/arch/parisc/kernel/drivers.c +++ b/arch/parisc/kernel/drivers.c @@ -499,7 +499,6 @@ alloc_pa_dev(unsigned long hpa, struct h dev->id.hversion_rev = iodc_data[1] & 0x0f; dev->id.sversion = ((iodc_data[4] & 0x0f) << 16) | (iodc_data[5] << 8) | iodc_data[6]; - dev->hpa.name = parisc_pathname(dev); dev->hpa.start = hpa; /* This is awkward. The STI spec says that gfx devices may occupy * 32MB or 64MB. Unfortunately, we don't know how to tell whether @@ -513,10 +512,10 @@ alloc_pa_dev(unsigned long hpa, struct h dev->hpa.end = hpa + 0xfff; } dev->hpa.flags = IORESOURCE_MEM; - name = parisc_hardware_description(&dev->id); - if (name) { - strlcpy(dev->name, name, sizeof(dev->name)); - } + dev->hpa.name = dev->name; + name = parisc_hardware_description(&dev->id) ? : "unknown"; + snprintf(dev->name, sizeof(dev->name), "%s [%s]", + name, parisc_pathname(dev));
/* Silently fail things like mouse ports which are subsumed within * the keyboard controller
From: Timur Tabi ttabi@nvidia.com
commit c441d28945fb113220d48d6c86ebc0b090a2b677 upstream.
This check determines whether a given address is part of image 0 or image 1. Image 1 starts at offset image0_size, so that address should be included.
Fixes: 4d4e9907ff572 ("drm/nouveau/bios: guard against out-of-bounds accesses to image") Cc: stable@vger.kernel.org # v4.8+ Signed-off-by: Timur Tabi ttabi@nvidia.com Reviewed-by: Karol Herbst kherbst@redhat.com Signed-off-by: Lyude Paul lyude@redhat.com Link: https://patchwork.freedesktop.org/patch/msgid/20220511163716.3520591-1-ttabi... Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/gpu/drm/nouveau/nvkm/subdev/bios/base.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/bios/base.c +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/bios/base.c @@ -33,7 +33,7 @@ nvbios_addr(struct nvkm_bios *bios, u32 { u32 p = *addr;
- if (*addr > bios->image0_size && bios->imaged_addr) { + if (*addr >= bios->image0_size && bios->imaged_addr) { *addr -= bios->image0_size; *addr += bios->imaged_addr; }
From: Leo Li sunpeng.li@amd.com
commit f5ba14043621f4afdf3ad5f92ee2d8dbebbe4340 upstream.
When pinning a buffer, we should check to see if there are any additional restrictions imposed by bo->preferred_domains. This will prevent the BO from being moved to an invalid domain when pinning.
For example, this can happen if the user requests to create a BO in GTT domain for display scanout. amdgpu_dm will allow pinning to either VRAM or GTT domains, since DCN can scanout from either or. However, in amdgpu_bo_pin_restricted(), pinning to VRAM is preferred if there is adequate carveout. This can lead to pinning to VRAM despite the user requesting GTT placement for the BO.
v2: Allow the kernel to override the domain, which can happen when exporting a BO to a V4L camera (for example).
Signed-off-by: Leo Li sunpeng.li@amd.com Reviewed-by: Alex Deucher alexander.deucher@amd.com Reviewed-by: Christian König christian.koenig@amd.com Signed-off-by: Alex Deucher alexander.deucher@amd.com Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | 4 ++++ 1 file changed, 4 insertions(+)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c @@ -883,6 +883,10 @@ int amdgpu_bo_pin_restricted(struct amdg if (WARN_ON_ONCE(min_offset > max_offset)) return -EINVAL;
+ /* Check domain to be pinned to against preferred domains */ + if (bo->preferred_domains & domain) + domain = bo->preferred_domains & domain; + /* A shared bo cannot be migrated to VRAM */ if (bo->prime_shared_count) { if (domain & AMDGPU_GEM_DOMAIN_GTT)
From: Ovidiu Panait ovidiu.panait@windriver.com
From: John Fastabend john.fastabend@gmail.com
commit 294f2fc6da27620a506e6c050241655459ccd6bd upstream.
Currently, for all op verification we call __red_deduce_bounds() and __red_bound_offset() but we only call __update_reg_bounds() in bitwise ops. However, we could benefit from calling __update_reg_bounds() in BPF_ADD, BPF_SUB, and BPF_MUL cases as well.
For example, a register with state 'R1_w=invP0' when we subtract from it,
w1 -= 2
Before coerce we will now have an smin_value=S64_MIN, smax_value=U64_MAX and unsigned bounds umin_value=0, umax_value=U64_MAX. These will then be clamped to S32_MIN, U32_MAX values by coerce in the case of alu32 op as done in above example. However tnum will be a constant because the ALU op is done on a constant.
Without update_reg_bounds() we have a scenario where tnum is a const but our unsigned bounds do not reflect this. By calling update_reg_bounds after coerce to 32bit we further refine the umin_value to U64_MAX in the alu64 case or U32_MAX in the alu32 case above.
Signed-off-by: John Fastabend john.fastabend@gmail.com Signed-off-by: Alexei Starovoitov ast@kernel.org Link: https://lore.kernel.org/bpf/158507151689.15666.566796274289413203.stgit@john... Signed-off-by: Ovidiu Panait ovidiu.panait@windriver.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- kernel/bpf/verifier.c | 1 + 1 file changed, 1 insertion(+)
--- a/kernel/bpf/verifier.c +++ b/kernel/bpf/verifier.c @@ -3496,6 +3496,7 @@ static int adjust_scalar_min_max_vals(st coerce_reg_to_size(dst_reg, 4); }
+ __update_reg_bounds(dst_reg); __reg_deduce_bounds(dst_reg); __reg_bound_offset(dst_reg); return 0;
From: Ovidiu Panait ovidiu.panait@windriver.com
From: Stanislav Fomichev sdf@google.com
commit 5366d2269139ba8eb6a906d73a0819947e3e4e0a upstream.
Commit 294f2fc6da27 ("bpf: Verifer, adjust_scalar_min_max_vals to always call update_reg_bounds()") changed the way verifier logs some of its state, adjust the test_align accordingly. Where possible, I tried to not copy-paste the entire log line and resorted to dropping the last closing brace instead.
Fixes: 294f2fc6da27 ("bpf: Verifer, adjust_scalar_min_max_vals to always call update_reg_bounds()") Signed-off-by: Stanislav Fomichev sdf@google.com Signed-off-by: Daniel Borkmann daniel@iogearbox.net Link: https://lore.kernel.org/bpf/20200515194904.229296-1-sdf@google.com [OP: adjust for 4.19 selftests] Signed-off-by: Ovidiu Panait ovidiu.panait@windriver.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- tools/testing/selftests/bpf/test_align.c | 41 +++++++++++++++---------------- 1 file changed, 21 insertions(+), 20 deletions(-)
--- a/tools/testing/selftests/bpf/test_align.c +++ b/tools/testing/selftests/bpf/test_align.c @@ -359,15 +359,15 @@ static struct bpf_align_test tests[] = { * is still (4n), fixed offset is not changed. * Also, we create a new reg->id. */ - {29, "R5_w=pkt(id=4,off=18,r=0,umax_value=2040,var_off=(0x0; 0x7fc))"}, + {29, "R5_w=pkt(id=4,off=18,r=0,umax_value=2040,var_off=(0x0; 0x7fc)"}, /* At the time the word size load is performed from R5, * its total fixed offset is NET_IP_ALIGN + reg->off (18) * which is 20. Then the variable offset is (4n), so * the total offset is 4-byte aligned and meets the * load's requirements. */ - {33, "R4=pkt(id=4,off=22,r=22,umax_value=2040,var_off=(0x0; 0x7fc))"}, - {33, "R5=pkt(id=4,off=18,r=22,umax_value=2040,var_off=(0x0; 0x7fc))"}, + {33, "R4=pkt(id=4,off=22,r=22,umax_value=2040,var_off=(0x0; 0x7fc)"}, + {33, "R5=pkt(id=4,off=18,r=22,umax_value=2040,var_off=(0x0; 0x7fc)"}, }, }, { @@ -410,15 +410,15 @@ static struct bpf_align_test tests[] = { /* Adding 14 makes R6 be (4n+2) */ {9, "R6_w=inv(id=0,umin_value=14,umax_value=1034,var_off=(0x2; 0x7fc))"}, /* Packet pointer has (4n+2) offset */ - {11, "R5_w=pkt(id=1,off=0,r=0,umin_value=14,umax_value=1034,var_off=(0x2; 0x7fc))"}, - {13, "R4=pkt(id=1,off=4,r=0,umin_value=14,umax_value=1034,var_off=(0x2; 0x7fc))"}, + {11, "R5_w=pkt(id=1,off=0,r=0,umin_value=14,umax_value=1034,var_off=(0x2; 0x7fc)"}, + {13, "R4=pkt(id=1,off=4,r=0,umin_value=14,umax_value=1034,var_off=(0x2; 0x7fc)"}, /* At the time the word size load is performed from R5, * its total fixed offset is NET_IP_ALIGN + reg->off (0) * which is 2. Then the variable offset is (4n+2), so * the total offset is 4-byte aligned and meets the * load's requirements. */ - {15, "R5=pkt(id=1,off=0,r=4,umin_value=14,umax_value=1034,var_off=(0x2; 0x7fc))"}, + {15, "R5=pkt(id=1,off=0,r=4,umin_value=14,umax_value=1034,var_off=(0x2; 0x7fc)"}, /* Newly read value in R6 was shifted left by 2, so has * known alignment of 4. */ @@ -426,15 +426,15 @@ static struct bpf_align_test tests[] = { /* Added (4n) to packet pointer's (4n+2) var_off, giving * another (4n+2). */ - {19, "R5_w=pkt(id=2,off=0,r=0,umin_value=14,umax_value=2054,var_off=(0x2; 0xffc))"}, - {21, "R4=pkt(id=2,off=4,r=0,umin_value=14,umax_value=2054,var_off=(0x2; 0xffc))"}, + {19, "R5_w=pkt(id=2,off=0,r=0,umin_value=14,umax_value=2054,var_off=(0x2; 0xffc)"}, + {21, "R4=pkt(id=2,off=4,r=0,umin_value=14,umax_value=2054,var_off=(0x2; 0xffc)"}, /* At the time the word size load is performed from R5, * its total fixed offset is NET_IP_ALIGN + reg->off (0) * which is 2. Then the variable offset is (4n+2), so * the total offset is 4-byte aligned and meets the * load's requirements. */ - {23, "R5=pkt(id=2,off=0,r=4,umin_value=14,umax_value=2054,var_off=(0x2; 0xffc))"}, + {23, "R5=pkt(id=2,off=0,r=4,umin_value=14,umax_value=2054,var_off=(0x2; 0xffc)"}, }, }, { @@ -469,16 +469,16 @@ static struct bpf_align_test tests[] = { .matches = { {4, "R5_w=pkt_end(id=0,off=0,imm=0)"}, /* (ptr - ptr) << 2 == unknown, (4n) */ - {6, "R5_w=inv(id=0,smax_value=9223372036854775804,umax_value=18446744073709551612,var_off=(0x0; 0xfffffffffffffffc))"}, + {6, "R5_w=inv(id=0,smax_value=9223372036854775804,umax_value=18446744073709551612,var_off=(0x0; 0xfffffffffffffffc)"}, /* (4n) + 14 == (4n+2). We blow our bounds, because * the add could overflow. */ - {7, "R5=inv(id=0,var_off=(0x2; 0xfffffffffffffffc))"}, + {7, "R5=inv(id=0,smin_value=-9223372036854775806,smax_value=9223372036854775806,umin_value=2,umax_value=18446744073709551614,var_off=(0x2; 0xfffffffffffffffc)"}, /* Checked s>=0 */ - {9, "R5=inv(id=0,umin_value=2,umax_value=9223372036854775806,var_off=(0x2; 0x7ffffffffffffffc))"}, + {9, "R5=inv(id=0,umin_value=2,umax_value=9223372034707292158,var_off=(0x2; 0x7fffffff7ffffffc)"}, /* packet pointer + nonnegative (4n+2) */ - {11, "R6_w=pkt(id=1,off=0,r=0,umin_value=2,umax_value=9223372036854775806,var_off=(0x2; 0x7ffffffffffffffc))"}, - {13, "R4=pkt(id=1,off=4,r=0,umin_value=2,umax_value=9223372036854775806,var_off=(0x2; 0x7ffffffffffffffc))"}, + {11, "R6_w=pkt(id=1,off=0,r=0,umin_value=2,umax_value=9223372034707292158,var_off=(0x2; 0x7fffffff7ffffffc)"}, + {13, "R4=pkt(id=1,off=4,r=0,umin_value=2,umax_value=9223372034707292158,var_off=(0x2; 0x7fffffff7ffffffc)"}, /* NET_IP_ALIGN + (4n+2) == (4n), alignment is fine. * We checked the bounds, but it might have been able * to overflow if the packet pointer started in the @@ -486,7 +486,7 @@ static struct bpf_align_test tests[] = { * So we did not get a 'range' on R6, and the access * attempt will fail. */ - {15, "R6=pkt(id=1,off=0,r=0,umin_value=2,umax_value=9223372036854775806,var_off=(0x2; 0x7ffffffffffffffc))"}, + {15, "R6=pkt(id=1,off=0,r=0,umin_value=2,umax_value=9223372034707292158,var_off=(0x2; 0x7fffffff7ffffffc)"}, } }, { @@ -528,7 +528,7 @@ static struct bpf_align_test tests[] = { /* New unknown value in R7 is (4n) */ {11, "R7_w=inv(id=0,umax_value=1020,var_off=(0x0; 0x3fc))"}, /* Subtracting it from R6 blows our unsigned bounds */ - {12, "R6=inv(id=0,smin_value=-1006,smax_value=1034,var_off=(0x2; 0xfffffffffffffffc))"}, + {12, "R6=inv(id=0,smin_value=-1006,smax_value=1034,umin_value=2,umax_value=18446744073709551614,var_off=(0x2; 0xfffffffffffffffc)"}, /* Checked s>= 0 */ {14, "R6=inv(id=0,umin_value=2,umax_value=1034,var_off=(0x2; 0x7fc))"}, /* At the time the word size load is performed from R5, @@ -537,7 +537,8 @@ static struct bpf_align_test tests[] = { * the total offset is 4-byte aligned and meets the * load's requirements. */ - {20, "R5=pkt(id=1,off=0,r=4,umin_value=2,umax_value=1034,var_off=(0x2; 0x7fc))"}, + {20, "R5=pkt(id=1,off=0,r=4,umin_value=2,umax_value=1034,var_off=(0x2; 0x7fc)"}, + }, }, { @@ -579,18 +580,18 @@ static struct bpf_align_test tests[] = { /* Adding 14 makes R6 be (4n+2) */ {11, "R6_w=inv(id=0,umin_value=14,umax_value=74,var_off=(0x2; 0x7c))"}, /* Subtracting from packet pointer overflows ubounds */ - {13, "R5_w=pkt(id=1,off=0,r=8,umin_value=18446744073709551542,umax_value=18446744073709551602,var_off=(0xffffffffffffff82; 0x7c))"}, + {13, "R5_w=pkt(id=1,off=0,r=8,umin_value=18446744073709551542,umax_value=18446744073709551602,var_off=(0xffffffffffffff82; 0x7c)"}, /* New unknown value in R7 is (4n), >= 76 */ {15, "R7_w=inv(id=0,umin_value=76,umax_value=1096,var_off=(0x0; 0x7fc))"}, /* Adding it to packet pointer gives nice bounds again */ - {16, "R5_w=pkt(id=2,off=0,r=0,umin_value=2,umax_value=1082,var_off=(0x2; 0x7fc))"}, + {16, "R5_w=pkt(id=2,off=0,r=0,umin_value=2,umax_value=1082,var_off=(0x2; 0xfffffffc)"}, /* At the time the word size load is performed from R5, * its total fixed offset is NET_IP_ALIGN + reg->off (0) * which is 2. Then the variable offset is (4n+2), so * the total offset is 4-byte aligned and meets the * load's requirements. */ - {20, "R5=pkt(id=2,off=0,r=4,umin_value=2,umax_value=1082,var_off=(0x2; 0x7fc))"}, + {20, "R5=pkt(id=2,off=0,r=4,umin_value=2,umax_value=1082,var_off=(0x2; 0xfffffffc)"}, }, }, };
Hi,
On Tue, Aug 23, 2022 at 10:23:14AM +0200, Greg Kroah-Hartman wrote:
From: Ovidiu Panait ovidiu.panait@windriver.com
From: Stanislav Fomichev sdf@google.com
commit 5366d2269139ba8eb6a906d73a0819947e3e4e0a upstream.
Commit 294f2fc6da27 ("bpf: Verifer, adjust_scalar_min_max_vals to always call update_reg_bounds()") changed the way verifier logs some of its state, adjust the test_align accordingly. Where possible, I tried to not copy-paste the entire log line and resorted to dropping the last closing brace instead.
Fixes: 294f2fc6da27 ("bpf: Verifer, adjust_scalar_min_max_vals to always call update_reg_bounds()") Signed-off-by: Stanislav Fomichev sdf@google.com Signed-off-by: Daniel Borkmann daniel@iogearbox.net Link: https://lore.kernel.org/bpf/20200515194904.229296-1-sdf@google.com [OP: adjust for 4.19 selftests] Signed-off-by: Ovidiu Panait ovidiu.panait@windriver.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
I believe this one shouldn't be applied as-is either, only partially. See https://lore.kernel.org/stable/20220824144327.277365-1-jean-philippe@linaro....
Ovidiu, do you want to resend this one with only the fixes for "bpf: Verifer, adjust_scalar_min_max_vals to always call update_reg_bounds()"?
Thanks, Jean
tools/testing/selftests/bpf/test_align.c | 41 +++++++++++++++---------------- 1 file changed, 21 insertions(+), 20 deletions(-)
--- a/tools/testing/selftests/bpf/test_align.c +++ b/tools/testing/selftests/bpf/test_align.c @@ -359,15 +359,15 @@ static struct bpf_align_test tests[] = { * is still (4n), fixed offset is not changed. * Also, we create a new reg->id. */
{29, "R5_w=pkt(id=4,off=18,r=0,umax_value=2040,var_off=(0x0; 0x7fc))"},
{29, "R5_w=pkt(id=4,off=18,r=0,umax_value=2040,var_off=(0x0; 0x7fc)"}, /* At the time the word size load is performed from R5, * its total fixed offset is NET_IP_ALIGN + reg->off (18) * which is 20. Then the variable offset is (4n), so * the total offset is 4-byte aligned and meets the * load's requirements. */
{33, "R4=pkt(id=4,off=22,r=22,umax_value=2040,var_off=(0x0; 0x7fc))"},
{33, "R5=pkt(id=4,off=18,r=22,umax_value=2040,var_off=(0x0; 0x7fc))"},
{33, "R4=pkt(id=4,off=22,r=22,umax_value=2040,var_off=(0x0; 0x7fc)"},
}, }, {{33, "R5=pkt(id=4,off=18,r=22,umax_value=2040,var_off=(0x0; 0x7fc)"},
@@ -410,15 +410,15 @@ static struct bpf_align_test tests[] = { /* Adding 14 makes R6 be (4n+2) */ {9, "R6_w=inv(id=0,umin_value=14,umax_value=1034,var_off=(0x2; 0x7fc))"}, /* Packet pointer has (4n+2) offset */
{11, "R5_w=pkt(id=1,off=0,r=0,umin_value=14,umax_value=1034,var_off=(0x2; 0x7fc))"},
{13, "R4=pkt(id=1,off=4,r=0,umin_value=14,umax_value=1034,var_off=(0x2; 0x7fc))"},
{11, "R5_w=pkt(id=1,off=0,r=0,umin_value=14,umax_value=1034,var_off=(0x2; 0x7fc)"},
{13, "R4=pkt(id=1,off=4,r=0,umin_value=14,umax_value=1034,var_off=(0x2; 0x7fc)"}, /* At the time the word size load is performed from R5, * its total fixed offset is NET_IP_ALIGN + reg->off (0) * which is 2. Then the variable offset is (4n+2), so * the total offset is 4-byte aligned and meets the * load's requirements. */
{15, "R5=pkt(id=1,off=0,r=4,umin_value=14,umax_value=1034,var_off=(0x2; 0x7fc))"},
{15, "R5=pkt(id=1,off=0,r=4,umin_value=14,umax_value=1034,var_off=(0x2; 0x7fc)"}, /* Newly read value in R6 was shifted left by 2, so has * known alignment of 4. */
@@ -426,15 +426,15 @@ static struct bpf_align_test tests[] = { /* Added (4n) to packet pointer's (4n+2) var_off, giving * another (4n+2). */
{19, "R5_w=pkt(id=2,off=0,r=0,umin_value=14,umax_value=2054,var_off=(0x2; 0xffc))"},
{21, "R4=pkt(id=2,off=4,r=0,umin_value=14,umax_value=2054,var_off=(0x2; 0xffc))"},
{19, "R5_w=pkt(id=2,off=0,r=0,umin_value=14,umax_value=2054,var_off=(0x2; 0xffc)"},
{21, "R4=pkt(id=2,off=4,r=0,umin_value=14,umax_value=2054,var_off=(0x2; 0xffc)"}, /* At the time the word size load is performed from R5, * its total fixed offset is NET_IP_ALIGN + reg->off (0) * which is 2. Then the variable offset is (4n+2), so * the total offset is 4-byte aligned and meets the * load's requirements. */
{23, "R5=pkt(id=2,off=0,r=4,umin_value=14,umax_value=2054,var_off=(0x2; 0xffc))"},
}, }, {{23, "R5=pkt(id=2,off=0,r=4,umin_value=14,umax_value=2054,var_off=(0x2; 0xffc)"},
@@ -469,16 +469,16 @@ static struct bpf_align_test tests[] = { .matches = { {4, "R5_w=pkt_end(id=0,off=0,imm=0)"}, /* (ptr - ptr) << 2 == unknown, (4n) */
{6, "R5_w=inv(id=0,smax_value=9223372036854775804,umax_value=18446744073709551612,var_off=(0x0; 0xfffffffffffffffc))"},
{6, "R5_w=inv(id=0,smax_value=9223372036854775804,umax_value=18446744073709551612,var_off=(0x0; 0xfffffffffffffffc)"}, /* (4n) + 14 == (4n+2). We blow our bounds, because * the add could overflow. */
{7, "R5=inv(id=0,var_off=(0x2; 0xfffffffffffffffc))"},
{7, "R5=inv(id=0,smin_value=-9223372036854775806,smax_value=9223372036854775806,umin_value=2,umax_value=18446744073709551614,var_off=(0x2; 0xfffffffffffffffc)"}, /* Checked s>=0 */
{9, "R5=inv(id=0,umin_value=2,umax_value=9223372036854775806,var_off=(0x2; 0x7ffffffffffffffc))"},
{9, "R5=inv(id=0,umin_value=2,umax_value=9223372034707292158,var_off=(0x2; 0x7fffffff7ffffffc)"}, /* packet pointer + nonnegative (4n+2) */
{11, "R6_w=pkt(id=1,off=0,r=0,umin_value=2,umax_value=9223372036854775806,var_off=(0x2; 0x7ffffffffffffffc))"},
{13, "R4=pkt(id=1,off=4,r=0,umin_value=2,umax_value=9223372036854775806,var_off=(0x2; 0x7ffffffffffffffc))"},
{11, "R6_w=pkt(id=1,off=0,r=0,umin_value=2,umax_value=9223372034707292158,var_off=(0x2; 0x7fffffff7ffffffc)"},
{13, "R4=pkt(id=1,off=4,r=0,umin_value=2,umax_value=9223372034707292158,var_off=(0x2; 0x7fffffff7ffffffc)"}, /* NET_IP_ALIGN + (4n+2) == (4n), alignment is fine. * We checked the bounds, but it might have been able * to overflow if the packet pointer started in the
@@ -486,7 +486,7 @@ static struct bpf_align_test tests[] = { * So we did not get a 'range' on R6, and the access * attempt will fail. */
{15, "R6=pkt(id=1,off=0,r=0,umin_value=2,umax_value=9223372036854775806,var_off=(0x2; 0x7ffffffffffffffc))"},
} }, {{15, "R6=pkt(id=1,off=0,r=0,umin_value=2,umax_value=9223372034707292158,var_off=(0x2; 0x7fffffff7ffffffc)"},
@@ -528,7 +528,7 @@ static struct bpf_align_test tests[] = { /* New unknown value in R7 is (4n) */ {11, "R7_w=inv(id=0,umax_value=1020,var_off=(0x0; 0x3fc))"}, /* Subtracting it from R6 blows our unsigned bounds */
{12, "R6=inv(id=0,smin_value=-1006,smax_value=1034,var_off=(0x2; 0xfffffffffffffffc))"},
{12, "R6=inv(id=0,smin_value=-1006,smax_value=1034,umin_value=2,umax_value=18446744073709551614,var_off=(0x2; 0xfffffffffffffffc)"}, /* Checked s>= 0 */ {14, "R6=inv(id=0,umin_value=2,umax_value=1034,var_off=(0x2; 0x7fc))"}, /* At the time the word size load is performed from R5,
@@ -537,7 +537,8 @@ static struct bpf_align_test tests[] = { * the total offset is 4-byte aligned and meets the * load's requirements. */
{20, "R5=pkt(id=1,off=0,r=4,umin_value=2,umax_value=1034,var_off=(0x2; 0x7fc))"},
{20, "R5=pkt(id=1,off=0,r=4,umin_value=2,umax_value=1034,var_off=(0x2; 0x7fc)"},
- }, }, {
@@ -579,18 +580,18 @@ static struct bpf_align_test tests[] = { /* Adding 14 makes R6 be (4n+2) */ {11, "R6_w=inv(id=0,umin_value=14,umax_value=74,var_off=(0x2; 0x7c))"}, /* Subtracting from packet pointer overflows ubounds */
{13, "R5_w=pkt(id=1,off=0,r=8,umin_value=18446744073709551542,umax_value=18446744073709551602,var_off=(0xffffffffffffff82; 0x7c))"},
{13, "R5_w=pkt(id=1,off=0,r=8,umin_value=18446744073709551542,umax_value=18446744073709551602,var_off=(0xffffffffffffff82; 0x7c)"}, /* New unknown value in R7 is (4n), >= 76 */ {15, "R7_w=inv(id=0,umin_value=76,umax_value=1096,var_off=(0x0; 0x7fc))"}, /* Adding it to packet pointer gives nice bounds again */
{16, "R5_w=pkt(id=2,off=0,r=0,umin_value=2,umax_value=1082,var_off=(0x2; 0x7fc))"},
{16, "R5_w=pkt(id=2,off=0,r=0,umin_value=2,umax_value=1082,var_off=(0x2; 0xfffffffc)"}, /* At the time the word size load is performed from R5, * its total fixed offset is NET_IP_ALIGN + reg->off (0) * which is 2. Then the variable offset is (4n+2), so * the total offset is 4-byte aligned and meets the * load's requirements. */
{20, "R5=pkt(id=2,off=0,r=4,umin_value=2,umax_value=1082,var_off=(0x2; 0x7fc))"},
}, },{20, "R5=pkt(id=2,off=0,r=4,umin_value=2,umax_value=1082,var_off=(0x2; 0xfffffffc)"},
};
On Wed, Aug 24, 2022 at 05:13:54PM +0100, Jean-Philippe Brucker wrote:
Hi,
On Tue, Aug 23, 2022 at 10:23:14AM +0200, Greg Kroah-Hartman wrote:
From: Ovidiu Panait ovidiu.panait@windriver.com
From: Stanislav Fomichev sdf@google.com
commit 5366d2269139ba8eb6a906d73a0819947e3e4e0a upstream.
Commit 294f2fc6da27 ("bpf: Verifer, adjust_scalar_min_max_vals to always call update_reg_bounds()") changed the way verifier logs some of its state, adjust the test_align accordingly. Where possible, I tried to not copy-paste the entire log line and resorted to dropping the last closing brace instead.
Fixes: 294f2fc6da27 ("bpf: Verifer, adjust_scalar_min_max_vals to always call update_reg_bounds()") Signed-off-by: Stanislav Fomichev sdf@google.com Signed-off-by: Daniel Borkmann daniel@iogearbox.net Link: https://lore.kernel.org/bpf/20200515194904.229296-1-sdf@google.com [OP: adjust for 4.19 selftests] Signed-off-by: Ovidiu Panait ovidiu.panait@windriver.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
I believe this one shouldn't be applied as-is either, only partially. See https://lore.kernel.org/stable/20220824144327.277365-1-jean-philippe@linaro....
Now dropped, thanks
greg k-h
Hi Jean-Philippe,
On 24.08.2022 19:13, Jean-Philippe Brucker wrote:
[Please note: This e-mail is from an EXTERNAL e-mail address]
Hi,
On Tue, Aug 23, 2022 at 10:23:14AM +0200, Greg Kroah-Hartman wrote:
From: Ovidiu Panait ovidiu.panait@windriver.com
From: Stanislav Fomichev sdf@google.com
commit 5366d2269139ba8eb6a906d73a0819947e3e4e0a upstream.
Commit 294f2fc6da27 ("bpf: Verifer, adjust_scalar_min_max_vals to always call update_reg_bounds()") changed the way verifier logs some of its state, adjust the test_align accordingly. Where possible, I tried to not copy-paste the entire log line and resorted to dropping the last closing brace instead.
Fixes: 294f2fc6da27 ("bpf: Verifer, adjust_scalar_min_max_vals to always call update_reg_bounds()") Signed-off-by: Stanislav Fomichev sdf@google.com Signed-off-by: Daniel Borkmann daniel@iogearbox.net Link: https://lore.kernel.org/bpf/20200515194904.229296-1-sdf@google.com [OP: adjust for 4.19 selftests] Signed-off-by: Ovidiu Panait ovidiu.panait@windriver.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
I believe this one shouldn't be applied as-is either, only partially. See https://lore.kernel.org/stable/20220824144327.277365-1-jean-philippe@linaro....
Ovidiu, do you want to resend this one with only the fixes for "bpf: Verifer, adjust_scalar_min_max_vals to always call update_reg_bounds()"?
Yes, I will resend the whole patchset with the selftests properly fixed.
Thanks, Ovidiu
Thanks, Jean
tools/testing/selftests/bpf/test_align.c | 41 +++++++++++++++---------------- 1 file changed, 21 insertions(+), 20 deletions(-)
--- a/tools/testing/selftests/bpf/test_align.c +++ b/tools/testing/selftests/bpf/test_align.c @@ -359,15 +359,15 @@ static struct bpf_align_test tests[] = { * is still (4n), fixed offset is not changed. * Also, we create a new reg->id. */
{29, "R5_w=pkt(id=4,off=18,r=0,umax_value=2040,var_off=(0x0; 0x7fc))"},
{29, "R5_w=pkt(id=4,off=18,r=0,umax_value=2040,var_off=(0x0; 0x7fc)"}, /* At the time the word size load is performed from R5, * its total fixed offset is NET_IP_ALIGN + reg->off (18) * which is 20. Then the variable offset is (4n), so * the total offset is 4-byte aligned and meets the * load's requirements. */
{33, "R4=pkt(id=4,off=22,r=22,umax_value=2040,var_off=(0x0; 0x7fc))"},
{33, "R5=pkt(id=4,off=18,r=22,umax_value=2040,var_off=(0x0; 0x7fc))"},
{33, "R4=pkt(id=4,off=22,r=22,umax_value=2040,var_off=(0x0; 0x7fc)"},
{33, "R5=pkt(id=4,off=18,r=22,umax_value=2040,var_off=(0x0; 0x7fc)"}, }, }, {
@@ -410,15 +410,15 @@ static struct bpf_align_test tests[] = { /* Adding 14 makes R6 be (4n+2) */ {9, "R6_w=inv(id=0,umin_value=14,umax_value=1034,var_off=(0x2; 0x7fc))"}, /* Packet pointer has (4n+2) offset */
{11, "R5_w=pkt(id=1,off=0,r=0,umin_value=14,umax_value=1034,var_off=(0x2; 0x7fc))"},
{13, "R4=pkt(id=1,off=4,r=0,umin_value=14,umax_value=1034,var_off=(0x2; 0x7fc))"},
{11, "R5_w=pkt(id=1,off=0,r=0,umin_value=14,umax_value=1034,var_off=(0x2; 0x7fc)"},
{13, "R4=pkt(id=1,off=4,r=0,umin_value=14,umax_value=1034,var_off=(0x2; 0x7fc)"}, /* At the time the word size load is performed from R5, * its total fixed offset is NET_IP_ALIGN + reg->off (0) * which is 2. Then the variable offset is (4n+2), so * the total offset is 4-byte aligned and meets the * load's requirements. */
{15, "R5=pkt(id=1,off=0,r=4,umin_value=14,umax_value=1034,var_off=(0x2; 0x7fc))"},
{15, "R5=pkt(id=1,off=0,r=4,umin_value=14,umax_value=1034,var_off=(0x2; 0x7fc)"}, /* Newly read value in R6 was shifted left by 2, so has * known alignment of 4. */
@@ -426,15 +426,15 @@ static struct bpf_align_test tests[] = { /* Added (4n) to packet pointer's (4n+2) var_off, giving * another (4n+2). */
{19, "R5_w=pkt(id=2,off=0,r=0,umin_value=14,umax_value=2054,var_off=(0x2; 0xffc))"},
{21, "R4=pkt(id=2,off=4,r=0,umin_value=14,umax_value=2054,var_off=(0x2; 0xffc))"},
{19, "R5_w=pkt(id=2,off=0,r=0,umin_value=14,umax_value=2054,var_off=(0x2; 0xffc)"},
{21, "R4=pkt(id=2,off=4,r=0,umin_value=14,umax_value=2054,var_off=(0x2; 0xffc)"}, /* At the time the word size load is performed from R5, * its total fixed offset is NET_IP_ALIGN + reg->off (0) * which is 2. Then the variable offset is (4n+2), so * the total offset is 4-byte aligned and meets the * load's requirements. */
{23, "R5=pkt(id=2,off=0,r=4,umin_value=14,umax_value=2054,var_off=(0x2; 0xffc))"},
{23, "R5=pkt(id=2,off=0,r=4,umin_value=14,umax_value=2054,var_off=(0x2; 0xffc)"}, }, }, {
@@ -469,16 +469,16 @@ static struct bpf_align_test tests[] = { .matches = { {4, "R5_w=pkt_end(id=0,off=0,imm=0)"}, /* (ptr - ptr) << 2 == unknown, (4n) */
{6, "R5_w=inv(id=0,smax_value=9223372036854775804,umax_value=18446744073709551612,var_off=(0x0; 0xfffffffffffffffc))"},
{6, "R5_w=inv(id=0,smax_value=9223372036854775804,umax_value=18446744073709551612,var_off=(0x0; 0xfffffffffffffffc)"}, /* (4n) + 14 == (4n+2). We blow our bounds, because * the add could overflow. */
{7, "R5=inv(id=0,var_off=(0x2; 0xfffffffffffffffc))"},
{7, "R5=inv(id=0,smin_value=-9223372036854775806,smax_value=9223372036854775806,umin_value=2,umax_value=18446744073709551614,var_off=(0x2; 0xfffffffffffffffc)"}, /* Checked s>=0 */
{9, "R5=inv(id=0,umin_value=2,umax_value=9223372036854775806,var_off=(0x2; 0x7ffffffffffffffc))"},
{9, "R5=inv(id=0,umin_value=2,umax_value=9223372034707292158,var_off=(0x2; 0x7fffffff7ffffffc)"}, /* packet pointer + nonnegative (4n+2) */
{11, "R6_w=pkt(id=1,off=0,r=0,umin_value=2,umax_value=9223372036854775806,var_off=(0x2; 0x7ffffffffffffffc))"},
{13, "R4=pkt(id=1,off=4,r=0,umin_value=2,umax_value=9223372036854775806,var_off=(0x2; 0x7ffffffffffffffc))"},
{11, "R6_w=pkt(id=1,off=0,r=0,umin_value=2,umax_value=9223372034707292158,var_off=(0x2; 0x7fffffff7ffffffc)"},
{13, "R4=pkt(id=1,off=4,r=0,umin_value=2,umax_value=9223372034707292158,var_off=(0x2; 0x7fffffff7ffffffc)"}, /* NET_IP_ALIGN + (4n+2) == (4n), alignment is fine. * We checked the bounds, but it might have been able * to overflow if the packet pointer started in the
@@ -486,7 +486,7 @@ static struct bpf_align_test tests[] = { * So we did not get a 'range' on R6, and the access * attempt will fail. */
{15, "R6=pkt(id=1,off=0,r=0,umin_value=2,umax_value=9223372036854775806,var_off=(0x2; 0x7ffffffffffffffc))"},
{15, "R6=pkt(id=1,off=0,r=0,umin_value=2,umax_value=9223372034707292158,var_off=(0x2; 0x7fffffff7ffffffc)"}, } }, {
@@ -528,7 +528,7 @@ static struct bpf_align_test tests[] = { /* New unknown value in R7 is (4n) */ {11, "R7_w=inv(id=0,umax_value=1020,var_off=(0x0; 0x3fc))"}, /* Subtracting it from R6 blows our unsigned bounds */
{12, "R6=inv(id=0,smin_value=-1006,smax_value=1034,var_off=(0x2; 0xfffffffffffffffc))"},
{12, "R6=inv(id=0,smin_value=-1006,smax_value=1034,umin_value=2,umax_value=18446744073709551614,var_off=(0x2; 0xfffffffffffffffc)"}, /* Checked s>= 0 */ {14, "R6=inv(id=0,umin_value=2,umax_value=1034,var_off=(0x2; 0x7fc))"}, /* At the time the word size load is performed from R5,
@@ -537,7 +537,8 @@ static struct bpf_align_test tests[] = { * the total offset is 4-byte aligned and meets the * load's requirements. */
{20, "R5=pkt(id=1,off=0,r=4,umin_value=2,umax_value=1034,var_off=(0x2; 0x7fc))"},
{20, "R5=pkt(id=1,off=0,r=4,umin_value=2,umax_value=1034,var_off=(0x2; 0x7fc)"},
}, }, {
@@ -579,18 +580,18 @@ static struct bpf_align_test tests[] = { /* Adding 14 makes R6 be (4n+2) */ {11, "R6_w=inv(id=0,umin_value=14,umax_value=74,var_off=(0x2; 0x7c))"}, /* Subtracting from packet pointer overflows ubounds */
{13, "R5_w=pkt(id=1,off=0,r=8,umin_value=18446744073709551542,umax_value=18446744073709551602,var_off=(0xffffffffffffff82; 0x7c))"},
{13, "R5_w=pkt(id=1,off=0,r=8,umin_value=18446744073709551542,umax_value=18446744073709551602,var_off=(0xffffffffffffff82; 0x7c)"}, /* New unknown value in R7 is (4n), >= 76 */ {15, "R7_w=inv(id=0,umin_value=76,umax_value=1096,var_off=(0x0; 0x7fc))"}, /* Adding it to packet pointer gives nice bounds again */
{16, "R5_w=pkt(id=2,off=0,r=0,umin_value=2,umax_value=1082,var_off=(0x2; 0x7fc))"},
{16, "R5_w=pkt(id=2,off=0,r=0,umin_value=2,umax_value=1082,var_off=(0x2; 0xfffffffc)"}, /* At the time the word size load is performed from R5, * its total fixed offset is NET_IP_ALIGN + reg->off (0) * which is 2. Then the variable offset is (4n+2), so * the total offset is 4-byte aligned and meets the * load's requirements. */
{20, "R5=pkt(id=2,off=0,r=4,umin_value=2,umax_value=1082,var_off=(0x2; 0x7fc))"},
};{20, "R5=pkt(id=2,off=0,r=4,umin_value=2,umax_value=1082,var_off=(0x2; 0xfffffffc)"}, }, },
From: Ovidiu Panait ovidiu.panait@windriver.com
From: Jean-Philippe Brucker jean-philippe@linaro.org
commit 3615bdf6d9b19db12b1589861609b4f1c6a8d303 upstream.
The verifier trace changed following a bugfix. After checking the 64-bit sign, only the upper bit mask is known, not bit 31. Update the test accordingly.
Signed-off-by: Jean-Philippe Brucker jean-philippe@linaro.org Acked-by: John Fastabend john.fastabend@gmail.com Signed-off-by: Alexei Starovoitov ast@kernel.org [OP: adjust for 4.19 selftests] Signed-off-by: Ovidiu Panait ovidiu.panait@windriver.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- tools/testing/selftests/bpf/test_align.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-)
--- a/tools/testing/selftests/bpf/test_align.c +++ b/tools/testing/selftests/bpf/test_align.c @@ -475,10 +475,10 @@ static struct bpf_align_test tests[] = { */ {7, "R5=inv(id=0,smin_value=-9223372036854775806,smax_value=9223372036854775806,umin_value=2,umax_value=18446744073709551614,var_off=(0x2; 0xfffffffffffffffc)"}, /* Checked s>=0 */ - {9, "R5=inv(id=0,umin_value=2,umax_value=9223372034707292158,var_off=(0x2; 0x7fffffff7ffffffc)"}, + {9, "R5=inv(id=0,umin_value=2,umax_value=9223372036854775806,var_off=(0x2; 0x7ffffffffffffffc)"}, /* packet pointer + nonnegative (4n+2) */ - {11, "R6_w=pkt(id=1,off=0,r=0,umin_value=2,umax_value=9223372034707292158,var_off=(0x2; 0x7fffffff7ffffffc)"}, - {13, "R4=pkt(id=1,off=4,r=0,umin_value=2,umax_value=9223372034707292158,var_off=(0x2; 0x7fffffff7ffffffc)"}, + {11, "R6_w=pkt(id=1,off=0,r=0,umin_value=2,umax_value=9223372036854775806,var_off=(0x2; 0x7ffffffffffffffc)"}, + {13, "R4=pkt(id=1,off=4,r=0,umin_value=2,umax_value=9223372036854775806,var_off=(0x2; 0x7ffffffffffffffc)"}, /* NET_IP_ALIGN + (4n+2) == (4n), alignment is fine. * We checked the bounds, but it might have been able * to overflow if the packet pointer started in the @@ -486,7 +486,7 @@ static struct bpf_align_test tests[] = { * So we did not get a 'range' on R6, and the access * attempt will fail. */ - {15, "R6=pkt(id=1,off=0,r=0,umin_value=2,umax_value=9223372034707292158,var_off=(0x2; 0x7fffffff7ffffffc)"}, + {15, "R6=pkt(id=1,off=0,r=0,umin_value=2,umax_value=9223372036854775806,var_off=(0x2; 0x7ffffffffffffffc)"}, } }, {
Hi,
On Tue, Aug 23, 2022 at 10:23:15AM +0200, Greg Kroah-Hartman wrote:
From: Ovidiu Panait ovidiu.panait@windriver.com
From: Jean-Philippe Brucker jean-philippe@linaro.org
commit 3615bdf6d9b19db12b1589861609b4f1c6a8d303 upstream.
This shouldn't be backported to 4.19, because it adjusts the selftest due to commit b02709587ea3 ("bpf: Fix propagation of 32-bit signed bounds from 64-bit bounds."), which wasn't backported further than 5.9.
See [1] for the report about these BPF backports to v5.4, which we are still trying to unravel. Given how painful building the BPF tests used to be even on 5.4, I'd rather not do the same on 4.19!
[1] https://lore.kernel.org/lkml/CAPXMrf-C5XEUfOJd3GCtgtHOkc8DxDGbLxE5=GFmr+Py0z...
Thanks, Jean
The verifier trace changed following a bugfix. After checking the 64-bit sign, only the upper bit mask is known, not bit 31. Update the test accordingly.
Signed-off-by: Jean-Philippe Brucker jean-philippe@linaro.org Acked-by: John Fastabend john.fastabend@gmail.com Signed-off-by: Alexei Starovoitov ast@kernel.org [OP: adjust for 4.19 selftests] Signed-off-by: Ovidiu Panait ovidiu.panait@windriver.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
tools/testing/selftests/bpf/test_align.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-)
--- a/tools/testing/selftests/bpf/test_align.c +++ b/tools/testing/selftests/bpf/test_align.c @@ -475,10 +475,10 @@ static struct bpf_align_test tests[] = { */ {7, "R5=inv(id=0,smin_value=-9223372036854775806,smax_value=9223372036854775806,umin_value=2,umax_value=18446744073709551614,var_off=(0x2; 0xfffffffffffffffc)"}, /* Checked s>=0 */
{9, "R5=inv(id=0,umin_value=2,umax_value=9223372034707292158,var_off=(0x2; 0x7fffffff7ffffffc)"},
{9, "R5=inv(id=0,umin_value=2,umax_value=9223372036854775806,var_off=(0x2; 0x7ffffffffffffffc)"}, /* packet pointer + nonnegative (4n+2) */
{11, "R6_w=pkt(id=1,off=0,r=0,umin_value=2,umax_value=9223372034707292158,var_off=(0x2; 0x7fffffff7ffffffc)"},
{13, "R4=pkt(id=1,off=4,r=0,umin_value=2,umax_value=9223372034707292158,var_off=(0x2; 0x7fffffff7ffffffc)"},
{11, "R6_w=pkt(id=1,off=0,r=0,umin_value=2,umax_value=9223372036854775806,var_off=(0x2; 0x7ffffffffffffffc)"},
{13, "R4=pkt(id=1,off=4,r=0,umin_value=2,umax_value=9223372036854775806,var_off=(0x2; 0x7ffffffffffffffc)"}, /* NET_IP_ALIGN + (4n+2) == (4n), alignment is fine. * We checked the bounds, but it might have been able * to overflow if the packet pointer started in the
@@ -486,7 +486,7 @@ static struct bpf_align_test tests[] = { * So we did not get a 'range' on R6, and the access * attempt will fail. */
{15, "R6=pkt(id=1,off=0,r=0,umin_value=2,umax_value=9223372034707292158,var_off=(0x2; 0x7fffffff7ffffffc)"},
} }, {{15, "R6=pkt(id=1,off=0,r=0,umin_value=2,umax_value=9223372036854775806,var_off=(0x2; 0x7ffffffffffffffc)"},
On Tue, Aug 23, 2022 at 10:58:10AM +0100, Jean-Philippe Brucker wrote:
Hi,
On Tue, Aug 23, 2022 at 10:23:15AM +0200, Greg Kroah-Hartman wrote:
From: Ovidiu Panait ovidiu.panait@windriver.com
From: Jean-Philippe Brucker jean-philippe@linaro.org
commit 3615bdf6d9b19db12b1589861609b4f1c6a8d303 upstream.
This shouldn't be backported to 4.19, because it adjusts the selftest due to commit b02709587ea3 ("bpf: Fix propagation of 32-bit signed bounds from 64-bit bounds."), which wasn't backported further than 5.9.
See [1] for the report about these BPF backports to v5.4, which we are still trying to unravel. Given how painful building the BPF tests used to be even on 5.4, I'd rather not do the same on 4.19!
[1] https://lore.kernel.org/lkml/CAPXMrf-C5XEUfOJd3GCtgtHOkc8DxDGbLxE5=GFmr+Py0z...
Thanks for letting me know, I've now dropped this from the 4.19-rc queue.
Ovidiu, please work on fixing this up in a way that everyone can agree on.
thanks,
greg k-h
From: Zheyu Ma zheyuma97@gmail.com
commit 06674fc7c003b9d0aa1d37fef7ab2c24802cc6ad upstream.
The driver use the non-managed form of the register function in isl29028_remove(). To keep the release order as mirroring the ordering in probe, the driver should use non-managed form in probe, too.
The following log reveals it:
[ 32.374955] isl29028 0-0010: remove [ 32.376861] general protection fault, probably for non-canonical address 0xdffffc0000000006: 0000 [#1] PREEMPT SMP KASAN PTI [ 32.377676] KASAN: null-ptr-deref in range [0x0000000000000030-0x0000000000000037] [ 32.379432] RIP: 0010:kernfs_find_and_get_ns+0x28/0xe0 [ 32.385461] Call Trace: [ 32.385807] sysfs_unmerge_group+0x59/0x110 [ 32.386110] dpm_sysfs_remove+0x58/0xc0 [ 32.386391] device_del+0x296/0xe50 [ 32.386959] cdev_device_del+0x1d/0xd0 [ 32.387231] devm_iio_device_unreg+0x27/0xb0 [ 32.387542] devres_release_group+0x319/0x3d0 [ 32.388162] i2c_device_remove+0x93/0x1f0
Fixes: 2db5054ac28d ("staging: iio: isl29028: add runtime power management support") Signed-off-by: Zheyu Ma zheyuma97@gmail.com Link: https://lore.kernel.org/r/20220717004241.2281028-1-zheyuma97@gmail.com Cc: Stable@vger.kernel.org Signed-off-by: Jonathan Cameron Jonathan.Cameron@huawei.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/iio/light/isl29028.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/iio/light/isl29028.c +++ b/drivers/iio/light/isl29028.c @@ -639,7 +639,7 @@ static int isl29028_probe(struct i2c_cli ISL29028_POWER_OFF_DELAY_MS); pm_runtime_use_autosuspend(&client->dev);
- ret = devm_iio_device_register(indio_dev->dev.parent, indio_dev); + ret = iio_device_register(indio_dev); if (ret < 0) { dev_err(&client->dev, "%s(): iio registration failed with error %d\n",
From: Miklos Szeredi mszeredi@redhat.com
commit 47912eaa061a6a81e4aa790591a1874c650733c0 upstream.
Limit nanoseconds to 0..999999999.
Fixes: d8a5ba45457e ("[PATCH] FUSE - core") Cc: stable@vger.kernel.org Signed-off-by: Miklos Szeredi mszeredi@redhat.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- fs/fuse/inode.c | 6 ++++++ 1 file changed, 6 insertions(+)
--- a/fs/fuse/inode.c +++ b/fs/fuse/inode.c @@ -174,6 +174,12 @@ void fuse_change_attributes_common(struc inode->i_uid = make_kuid(fc->user_ns, attr->uid); inode->i_gid = make_kgid(fc->user_ns, attr->gid); inode->i_blocks = attr->blocks; + + /* Sanitize nsecs */ + attr->atimensec = min_t(u32, attr->atimensec, NSEC_PER_SEC - 1); + attr->mtimensec = min_t(u32, attr->mtimensec, NSEC_PER_SEC - 1); + attr->ctimensec = min_t(u32, attr->ctimensec, NSEC_PER_SEC - 1); + inode->i_atime.tv_sec = attr->atime; inode->i_atime.tv_nsec = attr->atimensec; /* mtime from server may be stale due to local buffered write */
From: Narendra Hadke nhadke@marvell.com
commit a7209541239e5dd44d981289e5f9059222d40fd1 upstream.
For mvebu uart2, error bits are not cleared on buffer read. This causes interrupt loop and system hang.
Cc: stable@vger.kernel.org Reviewed-by: Yi Guo yi.guo@cavium.com Reviewed-by: Nadav Haklai nadavh@marvell.com Signed-off-by: Narendra Hadke nhadke@marvell.com Signed-off-by: Pali Rohár pali@kernel.org Link: https://lore.kernel.org/r/20220726091221.12358-1-pali@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/tty/serial/mvebu-uart.c | 11 +++++++++++ 1 file changed, 11 insertions(+)
--- a/drivers/tty/serial/mvebu-uart.c +++ b/drivers/tty/serial/mvebu-uart.c @@ -237,6 +237,7 @@ static void mvebu_uart_rx_chars(struct u struct tty_port *tport = &port->state->port; unsigned char ch = 0; char flag = 0; + int ret;
do { if (status & STAT_RX_RDY(port)) { @@ -249,6 +250,16 @@ static void mvebu_uart_rx_chars(struct u port->icount.parity++; }
+ /* + * For UART2, error bits are not cleared on buffer read. + * This causes interrupt loop and system hang. + */ + if (IS_EXTENDED(port) && (status & STAT_BRK_ERR)) { + ret = readl(port->membase + UART_STAT); + ret |= STAT_BRK_ERR; + writel(ret, port->membase + UART_STAT); + } + if (status & STAT_BRK_DET) { port->icount.brk++; status &= ~(STAT_FRM_ERR | STAT_PAR_ERR);
From: Mikulas Patocka mpatocka@redhat.com
commit d17f744e883b2f8d13cca252d71cfe8ace346f7d upstream.
There's a KASAN warning in raid10_remove_disk when running the lvm test lvconvert-raid-reshape.sh. We fix this warning by verifying that the value "number" is valid.
BUG: KASAN: slab-out-of-bounds in raid10_remove_disk+0x61/0x2a0 [raid10] Read of size 8 at addr ffff889108f3d300 by task mdX_raid10/124682
CPU: 3 PID: 124682 Comm: mdX_raid10 Not tainted 5.19.0-rc6 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.14.0-2 04/01/2014 Call Trace: <TASK> dump_stack_lvl+0x34/0x44 print_report.cold+0x45/0x57a ? __lock_text_start+0x18/0x18 ? raid10_remove_disk+0x61/0x2a0 [raid10] kasan_report+0xa8/0xe0 ? raid10_remove_disk+0x61/0x2a0 [raid10] raid10_remove_disk+0x61/0x2a0 [raid10] Buffer I/O error on dev dm-76, logical block 15344, async page read ? __mutex_unlock_slowpath.constprop.0+0x1e0/0x1e0 remove_and_add_spares+0x367/0x8a0 [md_mod] ? super_written+0x1c0/0x1c0 [md_mod] ? mutex_trylock+0xac/0x120 ? _raw_spin_lock+0x72/0xc0 ? _raw_spin_lock_bh+0xc0/0xc0 md_check_recovery+0x848/0x960 [md_mod] raid10d+0xcf/0x3360 [raid10] ? sched_clock_cpu+0x185/0x1a0 ? rb_erase+0x4d4/0x620 ? var_wake_function+0xe0/0xe0 ? psi_group_change+0x411/0x500 ? preempt_count_sub+0xf/0xc0 ? _raw_spin_lock_irqsave+0x78/0xc0 ? __lock_text_start+0x18/0x18 ? raid10_sync_request+0x36c0/0x36c0 [raid10] ? preempt_count_sub+0xf/0xc0 ? _raw_spin_unlock_irqrestore+0x19/0x40 ? del_timer_sync+0xa9/0x100 ? try_to_del_timer_sync+0xc0/0xc0 ? _raw_spin_lock_irqsave+0x78/0xc0 ? __lock_text_start+0x18/0x18 ? _raw_spin_unlock_irq+0x11/0x24 ? __list_del_entry_valid+0x68/0xa0 ? finish_wait+0xa3/0x100 md_thread+0x161/0x260 [md_mod] ? unregister_md_personality+0xa0/0xa0 [md_mod] ? _raw_spin_lock_irqsave+0x78/0xc0 ? prepare_to_wait_event+0x2c0/0x2c0 ? unregister_md_personality+0xa0/0xa0 [md_mod] kthread+0x148/0x180 ? kthread_complete_and_exit+0x20/0x20 ret_from_fork+0x1f/0x30 </TASK>
Allocated by task 124495: kasan_save_stack+0x1e/0x40 __kasan_kmalloc+0x80/0xa0 setup_conf+0x140/0x5c0 [raid10] raid10_run+0x4cd/0x740 [raid10] md_run+0x6f9/0x1300 [md_mod] raid_ctr+0x2531/0x4ac0 [dm_raid] dm_table_add_target+0x2b0/0x620 [dm_mod] table_load+0x1c8/0x400 [dm_mod] ctl_ioctl+0x29e/0x560 [dm_mod] dm_compat_ctl_ioctl+0x7/0x20 [dm_mod] __do_compat_sys_ioctl+0xfa/0x160 do_syscall_64+0x90/0xc0 entry_SYSCALL_64_after_hwframe+0x46/0xb0
Last potentially related work creation: kasan_save_stack+0x1e/0x40 __kasan_record_aux_stack+0x9e/0xc0 kvfree_call_rcu+0x84/0x480 timerfd_release+0x82/0x140 L __fput+0xfa/0x400 task_work_run+0x80/0xc0 exit_to_user_mode_prepare+0x155/0x160 syscall_exit_to_user_mode+0x12/0x40 do_syscall_64+0x42/0xc0 entry_SYSCALL_64_after_hwframe+0x46/0xb0
Second to last potentially related work creation: kasan_save_stack+0x1e/0x40 __kasan_record_aux_stack+0x9e/0xc0 kvfree_call_rcu+0x84/0x480 timerfd_release+0x82/0x140 __fput+0xfa/0x400 task_work_run+0x80/0xc0 exit_to_user_mode_prepare+0x155/0x160 syscall_exit_to_user_mode+0x12/0x40 do_syscall_64+0x42/0xc0 entry_SYSCALL_64_after_hwframe+0x46/0xb0
The buggy address belongs to the object at ffff889108f3d200 which belongs to the cache kmalloc-256 of size 256 The buggy address is located 0 bytes to the right of 256-byte region [ffff889108f3d200, ffff889108f3d300)
The buggy address belongs to the physical page: page:000000007ef2a34c refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1108f3c head:000000007ef2a34c order:2 compound_mapcount:0 compound_pincount:0 flags: 0x4000000000010200(slab|head|zone=2) raw: 4000000000010200 0000000000000000 dead000000000001 ffff889100042b40 raw: 0000000000000000 0000000080200020 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected
Memory state around the buggy address: ffff889108f3d200: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff889108f3d280: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
ffff889108f3d300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
^ ffff889108f3d380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff889108f3d400: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Signed-off-by: Mikulas Patocka mpatocka@redhat.com Cc: stable@vger.kernel.org Signed-off-by: Song Liu song@kernel.org Signed-off-by: Jens Axboe axboe@kernel.dk Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/md/raid10.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)
--- a/drivers/md/raid10.c +++ b/drivers/md/raid10.c @@ -1863,9 +1863,12 @@ static int raid10_remove_disk(struct mdd int err = 0; int number = rdev->raid_disk; struct md_rdev **rdevp; - struct raid10_info *p = conf->mirrors + number; + struct raid10_info *p;
print_conf(conf); + if (unlikely(number >= mddev->raid_disks)) + return 0; + p = conf->mirrors + number; if (rdev == p->rdev) rdevp = &p->rdev; else if (rdev == p->replacement)
From: Alexander Lobakin alexandr.lobakin@intel.com
commit e5a16a5c4602c119262f350274021f90465f479d upstream.
test_bit(), as any other bitmap op, takes `unsigned long *` as a second argument (pointer to the actual bitmap), as any bitmap itself is an array of unsigned longs. However, the ia64_get_irr() code passes a ref to `u64` as a second argument. This works with the ia64 bitops implementation due to that they have `void *` as the second argument and then cast it later on. This works with the bitmap API itself due to that `unsigned long` has the same size on ia64 as `u64` (`unsigned long long`), but from the compiler PoV those two are different. Define @irr as `unsigned long` to fix that. That implies no functional changes. Has been hidden for 16 years!
Fixes: a58786917ce2 ("[IA64] avoid broken SAL_CACHE_FLUSH implementations") Cc: stable@vger.kernel.org # 2.6.16+ Reported-by: kernel test robot lkp@intel.com Signed-off-by: Alexander Lobakin alexandr.lobakin@intel.com Reviewed-by: Andy Shevchenko andriy.shevchenko@linux.intel.com Reviewed-by: Yury Norov yury.norov@gmail.com Signed-off-by: Yury Norov yury.norov@gmail.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/ia64/include/asm/processor.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/ia64/include/asm/processor.h +++ b/arch/ia64/include/asm/processor.h @@ -552,7 +552,7 @@ ia64_get_irr(unsigned int vector) { unsigned int reg = vector / 64; unsigned int bit = vector % 64; - u64 irr; + unsigned long irr;
switch (reg) { case 0: irr = ia64_getreg(_IA64_REG_CR_IRR0); break;
From: Pali Rohár pali@kernel.org
commit 904b10fb189cc15376e9bfce1ef0282e68b0b004 upstream.
Add these PCI class codes to pci_ids.h:
PCI_CLASS_BRIDGE_PCI_NORMAL PCI_CLASS_BRIDGE_PCI_SUBTRACTIVE
Use these defines in all kernel code for describing PCI class codes for normal and subtractive PCI bridges.
[bhelgaas: similar change in pci-mvebu.c] Link: https://lore.kernel.org/r/20220214114109.26809-1-pali@kernel.org Signed-off-by: Pali Rohár pali@kernel.org Signed-off-by: Bjorn Helgaas bhelgaas@google.com Cc: Guenter Roeck linux@roeck-us.neta Cc: Naresh Kamboju naresh.kamboju@linaro.org [ gregkh - take only the pci_ids.h portion for stable backports ] Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- include/linux/pci_ids.h | 2 ++ 1 file changed, 2 insertions(+)
--- a/include/linux/pci_ids.h +++ b/include/linux/pci_ids.h @@ -59,6 +59,8 @@ #define PCI_CLASS_BRIDGE_EISA 0x0602 #define PCI_CLASS_BRIDGE_MC 0x0603 #define PCI_CLASS_BRIDGE_PCI 0x0604 +#define PCI_CLASS_BRIDGE_PCI_NORMAL 0x060400 +#define PCI_CLASS_BRIDGE_PCI_SUBTRACTIVE 0x060401 #define PCI_CLASS_BRIDGE_PCMCIA 0x0605 #define PCI_CLASS_BRIDGE_NUBUS 0x0606 #define PCI_CLASS_BRIDGE_CARDBUS 0x0607
From: Pali Rohár pali@kernel.org
commit 0c551abfa004ce154d487d91777bf221c808a64f upstream.
By default old pre-3.0 Freescale PCIe controllers reports invalid PCI Class Code 0x0b20 for PCIe Root Port. It can be seen by lspci -b output on P2020 board which has this pre-3.0 controller:
$ lspci -bvnn 00:00.0 Power PC [0b20]: Freescale Semiconductor Inc P2020E [1957:0070] (rev 21) !!! Invalid class 0b20 for header type 01 Capabilities: [4c] Express Root Port (Slot-), MSI 00
Fix this issue by programming correct PCI Class Code 0x0604 for PCIe Root Port to the Freescale specific PCIe register 0x474.
With this change lspci -b output is:
$ lspci -bvnn 00:00.0 PCI bridge [0604]: Freescale Semiconductor Inc P2020E [1957:0070] (rev 21) (prog-if 00 [Normal decode]) Capabilities: [4c] Express Root Port (Slot-), MSI 00
Without any "Invalid class" error. So class code was properly reflected into standard (read-only) PCI register 0x08.
Same fix is already implemented in U-Boot pcie_fsl.c driver in commit: http://source.denx.de/u-boot/u-boot/-/commit/d18d06ac35229345a0af80977a408cf...
Fix activated by U-Boot stay active also after booting Linux kernel. But boards which use older U-Boot version without that fix are affected and still require this fix.
So implement this class code fix also in kernel fsl_pci.c driver.
Cc: stable@vger.kernel.org Signed-off-by: Pali Rohár pali@kernel.org Signed-off-by: Michael Ellerman mpe@ellerman.id.au Link: https://lore.kernel.org/r/20220706101043.4867-1-pali@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/powerpc/sysdev/fsl_pci.c | 8 ++++++++ arch/powerpc/sysdev/fsl_pci.h | 1 + 2 files changed, 9 insertions(+)
--- a/arch/powerpc/sysdev/fsl_pci.c +++ b/arch/powerpc/sysdev/fsl_pci.c @@ -523,6 +523,7 @@ int fsl_add_bridge(struct platform_devic struct resource rsrc; const int *bus_range; u8 hdr_type, progif; + u32 class_code; struct device_node *dev; struct ccsr_pci __iomem *pci; u16 temp; @@ -596,6 +597,13 @@ int fsl_add_bridge(struct platform_devic PPC_INDIRECT_TYPE_SURPRESS_PRIMARY_BUS; if (fsl_pcie_check_link(hose)) hose->indirect_type |= PPC_INDIRECT_TYPE_NO_PCIE_LINK; + /* Fix Class Code to PCI_CLASS_BRIDGE_PCI_NORMAL for pre-3.0 controller */ + if (in_be32(&pci->block_rev1) < PCIE_IP_REV_3_0) { + early_read_config_dword(hose, 0, 0, PCIE_FSL_CSR_CLASSCODE, &class_code); + class_code &= 0xff; + class_code |= PCI_CLASS_BRIDGE_PCI_NORMAL << 8; + early_write_config_dword(hose, 0, 0, PCIE_FSL_CSR_CLASSCODE, class_code); + } } else { /* * Set PBFR(PCI Bus Function Register)[10] = 1 to --- a/arch/powerpc/sysdev/fsl_pci.h +++ b/arch/powerpc/sysdev/fsl_pci.h @@ -23,6 +23,7 @@ struct platform_device;
#define PCIE_LTSSM 0x0404 /* PCIE Link Training and Status */ #define PCIE_LTSSM_L0 0x16 /* L0 state */ +#define PCIE_FSL_CSR_CLASSCODE 0x474 /* FSL GPEX CSR */ #define PCIE_IP_REV_2_2 0x02080202 /* PCIE IP block version Rev2.2 */ #define PCIE_IP_REV_3_0 0x02080300 /* PCIE IP block version Rev3.0 */ #define PIWAR_EN 0x80000000 /* Enable */
From: Michael Ellerman mpe@ellerman.id.au
commit 90b5d4fe0b3ba7f589c6723c6bfb559d9e83956a upstream.
On a bare-metal Power8 system that doesn't have an "ibm,power-rng", a malicious QEMU and guest that ignore the absence of the KVM_CAP_PPC_HWRNG flag, and calls H_RANDOM anyway, will dereference a NULL pointer.
In practice all Power8 machines have an "ibm,power-rng", but let's not rely on that, add a NULL check and early return in powernv_get_random_real_mode().
Fixes: e928e9cb3601 ("KVM: PPC: Book3S HV: Add fast real-mode H_RANDOM implementation.") Cc: stable@vger.kernel.org # v4.1+ Signed-off-by: Jason A. Donenfeld Jason@zx2c4.com Signed-off-by: Michael Ellerman mpe@ellerman.id.au Link: https://lore.kernel.org/r/20220727143219.2684192-1-mpe@ellerman.id.au Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/powerpc/platforms/powernv/rng.c | 2 ++ 1 file changed, 2 insertions(+)
--- a/arch/powerpc/platforms/powernv/rng.c +++ b/arch/powerpc/platforms/powernv/rng.c @@ -67,6 +67,8 @@ int powernv_get_random_real_mode(unsigne struct powernv_rng *rng;
rng = raw_cpu_read(powernv_rng); + if (!rng) + return 0;
*v = rng_whiten(rng, __raw_rm_readq(rng->regs_real));
From: Huacai Chen chenhuacai@loongson.cn
commit e1a534f5d074db45ae5cbac41d8912b98e96a006 upstream.
When CONFIG_CPUMASK_OFFSTACK and CONFIG_DEBUG_PER_CPU_MAPS is selected, cpu_max_bits_warn() generates a runtime warning similar as below while we show /proc/cpuinfo. Fix this by using nr_cpu_ids (the runtime limit) instead of NR_CPUS to iterate CPUs.
[ 3.052463] ------------[ cut here ]------------ [ 3.059679] WARNING: CPU: 3 PID: 1 at include/linux/cpumask.h:108 show_cpuinfo+0x5e8/0x5f0 [ 3.070072] Modules linked in: efivarfs autofs4 [ 3.076257] CPU: 0 PID: 1 Comm: systemd Not tainted 5.19-rc5+ #1052 [ 3.084034] Hardware name: Loongson Loongson-3A4000-7A1000-1w-V0.1-CRB/Loongson-LS3A4000-7A1000-1w-EVB-V1.21, BIOS Loongson-UDK2018-V2.0.04082-beta7 04/27 [ 3.099465] Stack : 9000000100157b08 9000000000f18530 9000000000cf846c 9000000100154000 [ 3.109127] 9000000100157a50 0000000000000000 9000000100157a58 9000000000ef7430 [ 3.118774] 90000001001578e8 0000000000000040 0000000000000020 ffffffffffffffff [ 3.128412] 0000000000aaaaaa 1ab25f00eec96a37 900000010021de80 900000000101c890 [ 3.138056] 0000000000000000 0000000000000000 0000000000000000 0000000000aaaaaa [ 3.147711] ffff8000339dc220 0000000000000001 0000000006ab4000 0000000000000000 [ 3.157364] 900000000101c998 0000000000000004 9000000000ef7430 0000000000000000 [ 3.167012] 0000000000000009 000000000000006c 0000000000000000 0000000000000000 [ 3.176641] 9000000000d3de08 9000000001639390 90000000002086d8 00007ffff0080286 [ 3.186260] 00000000000000b0 0000000000000004 0000000000000000 0000000000071c1c [ 3.195868] ... [ 3.199917] Call Trace: [ 3.203941] [<98000000002086d8>] show_stack+0x38/0x14c [ 3.210666] [<9800000000cf846c>] dump_stack_lvl+0x60/0x88 [ 3.217625] [<980000000023d268>] __warn+0xd0/0x100 [ 3.223958] [<9800000000cf3c90>] warn_slowpath_fmt+0x7c/0xcc [ 3.231150] [<9800000000210220>] show_cpuinfo+0x5e8/0x5f0 [ 3.238080] [<98000000004f578c>] seq_read_iter+0x354/0x4b4 [ 3.245098] [<98000000004c2e90>] new_sync_read+0x17c/0x1c4 [ 3.252114] [<98000000004c5174>] vfs_read+0x138/0x1d0 [ 3.258694] [<98000000004c55f8>] ksys_read+0x70/0x100 [ 3.265265] [<9800000000cfde9c>] do_syscall+0x7c/0x94 [ 3.271820] [<9800000000202fe4>] handle_syscall+0xc4/0x160 [ 3.281824] ---[ end trace 8b484262b4b8c24c ]---
Cc: stable@vger.kernel.org Signed-off-by: Huacai Chen chenhuacai@loongson.cn Signed-off-by: Thomas Bogendoerfer tsbogend@alpha.franken.de Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/mips/kernel/proc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/mips/kernel/proc.c +++ b/arch/mips/kernel/proc.c @@ -168,7 +168,7 @@ static void *c_start(struct seq_file *m, { unsigned long i = *pos;
- return i < NR_CPUS ? (void *) (i + 1) : NULL; + return i < nr_cpu_ids ? (void *) (i + 1) : NULL; }
static void *c_next(struct seq_file *m, void *v, loff_t *pos)
From: Weitao Wang WeitaoWang-oc@zhaoxin.com
commit 26c6c2f8a907c9e3a2f24990552a4d77235791e6 upstream.
Usb core introduce the mechanism of giveback of URB in tasklet context to reduce hardware interrupt handling time. On some test situation(such as FIO with 4KB block size), when tasklet callback function called to giveback URB, interrupt handler add URB node to the bh->head list also. If check bh->head list again after finish all URB giveback of local_list, then it may introduce a "dynamic balance" between giveback URB and add URB to bh->head list. This tasklet callback function may not exit for a long time, which will cause other tasklet function calls to be delayed. Some real-time applications(such as KB and Mouse) will see noticeable lag.
In order to prevent the tasklet function from occupying the cpu for a long time at a time, new URBS will not be added to the local_list even though the bh->head list is not empty. But also need to ensure the left URB giveback to be processed in time, so add a member high_prio for structure giveback_urb_bh to prioritize tasklet and schelule this tasklet again if bh->head list is not empty.
At the same time, we are able to prioritize tasklet through structure member high_prio. So, replace the local high_prio_bh variable with this structure member in usb_hcd_giveback_urb.
Fixes: 94dfd7edfd5c ("USB: HCD: support giveback of URB in tasklet context") Cc: stable stable@kernel.org Reviewed-by: Alan Stern stern@rowland.harvard.edu Signed-off-by: Weitao Wang WeitaoWang-oc@zhaoxin.com Link: https://lore.kernel.org/r/20220726074918.5114-1-WeitaoWang-oc@zhaoxin.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/usb/core/hcd.c | 26 +++++++++++++++----------- include/linux/usb/hcd.h | 1 + 2 files changed, 16 insertions(+), 11 deletions(-)
--- a/drivers/usb/core/hcd.c +++ b/drivers/usb/core/hcd.c @@ -1805,7 +1805,6 @@ static void usb_giveback_urb_bh(unsigned
spin_lock_irq(&bh->lock); bh->running = true; - restart: list_replace_init(&bh->head, &local_list); spin_unlock_irq(&bh->lock);
@@ -1819,10 +1818,17 @@ static void usb_giveback_urb_bh(unsigned bh->completing_ep = NULL; }
- /* check if there are new URBs to giveback */ + /* + * giveback new URBs next time to prevent this function + * from not exiting for a long time. + */ spin_lock_irq(&bh->lock); - if (!list_empty(&bh->head)) - goto restart; + if (!list_empty(&bh->head)) { + if (bh->high_prio) + tasklet_hi_schedule(&bh->bh); + else + tasklet_schedule(&bh->bh); + } bh->running = false; spin_unlock_irq(&bh->lock); } @@ -1847,7 +1853,7 @@ static void usb_giveback_urb_bh(unsigned void usb_hcd_giveback_urb(struct usb_hcd *hcd, struct urb *urb, int status) { struct giveback_urb_bh *bh; - bool running, high_prio_bh; + bool running;
/* pass status to tasklet via unlinked */ if (likely(!urb->unlinked)) @@ -1858,13 +1864,10 @@ void usb_hcd_giveback_urb(struct usb_hcd return; }
- if (usb_pipeisoc(urb->pipe) || usb_pipeint(urb->pipe)) { + if (usb_pipeisoc(urb->pipe) || usb_pipeint(urb->pipe)) bh = &hcd->high_prio_bh; - high_prio_bh = true; - } else { + else bh = &hcd->low_prio_bh; - high_prio_bh = false; - }
spin_lock(&bh->lock); list_add_tail(&urb->urb_list, &bh->head); @@ -1873,7 +1876,7 @@ void usb_hcd_giveback_urb(struct usb_hcd
if (running) ; - else if (high_prio_bh) + else if (bh->high_prio) tasklet_hi_schedule(&bh->bh); else tasklet_schedule(&bh->bh); @@ -2881,6 +2884,7 @@ int usb_add_hcd(struct usb_hcd *hcd,
/* initialize tasklets */ init_giveback_urb_bh(&hcd->high_prio_bh); + hcd->high_prio_bh.high_prio = true; init_giveback_urb_bh(&hcd->low_prio_bh);
/* enable irqs just before we start the controller, --- a/include/linux/usb/hcd.h +++ b/include/linux/usb/hcd.h @@ -66,6 +66,7 @@
struct giveback_urb_bh { bool running; + bool high_prio; spinlock_t lock; struct list_head head; struct tasklet_struct bh;
From: Thadeu Lima de Souza Cascardo cascardo@canonical.com
commit 470ee20e069a6d05ae549f7d0ef2bdbcee6a81b2 upstream.
When doing lookups for sets on the same batch by using its ID, a set from a different table can be used.
Then, when the table is removed, a reference to the set may be kept after the set is freed, leading to a potential use-after-free.
When looking for sets by ID, use the table that was used for the lookup by name, and only return sets belonging to that same table.
This fixes CVE-2022-2586, also reported as ZDI-CAN-17470.
Reported-by: Team Orca of Sea Security (@seasecresponse) Fixes: 958bee14d071 ("netfilter: nf_tables: use new transaction infrastructure to handle sets") Signed-off-by: Thadeu Lima de Souza Cascardo cascardo@canonical.com Cc: stable@vger.kernel.org Signed-off-by: Pablo Neira Ayuso pablo@netfilter.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- net/netfilter/nf_tables_api.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
--- a/net/netfilter/nf_tables_api.c +++ b/net/netfilter/nf_tables_api.c @@ -3039,6 +3039,7 @@ static struct nft_set *nft_set_lookup_by }
static struct nft_set *nft_set_lookup_byid(const struct net *net, + const struct nft_table *table, const struct nlattr *nla, u8 genmask) { struct nft_trans *trans; @@ -3049,6 +3050,7 @@ static struct nft_set *nft_set_lookup_by struct nft_set *set = nft_trans_set(trans);
if (id == nft_trans_set_id(trans) && + set->table == table && nft_active_genmask(set, genmask)) return set; } @@ -3069,7 +3071,7 @@ struct nft_set *nft_set_lookup_global(co if (!nla_set_id) return set;
- set = nft_set_lookup_byid(net, nla_set_id, genmask); + set = nft_set_lookup_byid(net, table, nla_set_id, genmask); } return set; }
From: Florian Westphal fw@strlen.de
commit 580077855a40741cf511766129702d97ff02f4d9 upstream.
In nf_tables_updtable, if nf_tables_table_enable returns an error, nft_trans_destroy is called to free the transaction object.
nft_trans_destroy() calls list_del(), but the transaction was never placed on a list -- the list head is all zeroes, this results in a null dereference:
BUG: KASAN: null-ptr-deref in nft_trans_destroy+0x26/0x59 Call Trace: nft_trans_destroy+0x26/0x59 nf_tables_newtable+0x4bc/0x9bc [..]
Its sane to assume that nft_trans_destroy() can be called on the transaction object returned by nft_trans_alloc(), so make sure the list head is initialised.
Fixes: 55dd6f93076b ("netfilter: nf_tables: use new transaction infrastructure to handle table") Reported-by: mingi cho mgcho.minic@gmail.com Signed-off-by: Florian Westphal fw@strlen.de Signed-off-by: Pablo Neira Ayuso pablo@netfilter.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- net/netfilter/nf_tables_api.c | 1 + 1 file changed, 1 insertion(+)
--- a/net/netfilter/nf_tables_api.c +++ b/net/netfilter/nf_tables_api.c @@ -96,6 +96,7 @@ static struct nft_trans *nft_trans_alloc if (trans == NULL) return NULL;
+ INIT_LIST_HEAD(&trans->list); trans->msg_type = msg_type; trans->ctx = *ctx;
From: Francis Laniel flaniel@linux.microsoft.com
[ Upstream commit de6921856f99c11d3986c6702d851e1328d4f7f6 ]
Enable tracing of the execve*() system calls with the syscalls:sys_exit_execve tracepoint by removing the call to forget_syscall() when starting a new thread and preserving the value of regs->syscallno across exec.
Signed-off-by: Francis Laniel flaniel@linux.microsoft.com Link: https://lore.kernel.org/r/20220608162447.666494-2-flaniel@linux.microsoft.co... Signed-off-by: Will Deacon will@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- arch/arm64/include/asm/processor.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/arch/arm64/include/asm/processor.h b/arch/arm64/include/asm/processor.h index 773ea8e0e442..f81074c68ff3 100644 --- a/arch/arm64/include/asm/processor.h +++ b/arch/arm64/include/asm/processor.h @@ -172,8 +172,9 @@ void tls_preserve_current_state(void);
static inline void start_thread_common(struct pt_regs *regs, unsigned long pc) { + s32 previous_syscall = regs->syscallno; memset(regs, 0, sizeof(*regs)); - forget_syscall(regs); + regs->syscallno = previous_syscall; regs->pc = pc; }
From: haibinzhang (张海斌) haibinzhang@tencent.com
[ Upstream commit af483947d472eccb79e42059276c4deed76f99a6 ]
emulation_proc_handler() changes table->data for proc_dointvec_minmax and can generate the following Oops if called concurrently with itself:
| Unable to handle kernel NULL pointer dereference at virtual address 0000000000000010 | Internal error: Oops: 96000006 [#1] SMP | Call trace: | update_insn_emulation_mode+0xc0/0x148 | emulation_proc_handler+0x64/0xb8 | proc_sys_call_handler+0x9c/0xf8 | proc_sys_write+0x18/0x20 | __vfs_write+0x20/0x48 | vfs_write+0xe4/0x1d0 | ksys_write+0x70/0xf8 | __arm64_sys_write+0x20/0x28 | el0_svc_common.constprop.0+0x7c/0x1c0 | el0_svc_handler+0x2c/0xa0 | el0_svc+0x8/0x200
To fix this issue, keep the table->data as &insn->current_mode and use container_of() to retrieve the insn pointer. Another mutex is used to protect against the current_mode update but not for retrieving insn_emulation as table->data is no longer changing.
Co-developed-by: hewenliang hewenliang4@huawei.com Signed-off-by: hewenliang hewenliang4@huawei.com Signed-off-by: Haibin Zhang haibinzhang@tencent.com Reviewed-by: Catalin Marinas catalin.marinas@arm.com Link: https://lore.kernel.org/r/20220128090324.2727688-1-hewenliang4@huawei.com Link: https://lore.kernel.org/r/9A004C03-250B-46C5-BF39-782D7551B00E@tencent.com Signed-off-by: Will Deacon will@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- arch/arm64/kernel/armv8_deprecated.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/arch/arm64/kernel/armv8_deprecated.c b/arch/arm64/kernel/armv8_deprecated.c index 181c29af5617..7c69a203cdf8 100644 --- a/arch/arm64/kernel/armv8_deprecated.c +++ b/arch/arm64/kernel/armv8_deprecated.c @@ -62,6 +62,7 @@ struct insn_emulation { static LIST_HEAD(insn_emulation); static int nr_insn_emulated __initdata; static DEFINE_RAW_SPINLOCK(insn_emulation_lock); +static DEFINE_MUTEX(insn_emulation_mutex);
static void register_emulation_hooks(struct insn_emulation_ops *ops) { @@ -210,10 +211,10 @@ static int emulation_proc_handler(struct ctl_table *table, int write, loff_t *ppos) { int ret = 0; - struct insn_emulation *insn = (struct insn_emulation *) table->data; + struct insn_emulation *insn = container_of(table->data, struct insn_emulation, current_mode); enum insn_emulation_mode prev_mode = insn->current_mode;
- table->data = &insn->current_mode; + mutex_lock(&insn_emulation_mutex); ret = proc_dointvec_minmax(table, write, buffer, lenp, ppos);
if (ret || !write || prev_mode == insn->current_mode) @@ -226,7 +227,7 @@ static int emulation_proc_handler(struct ctl_table *table, int write, update_insn_emulation_mode(insn, INSN_UNDEF); } ret: - table->data = insn; + mutex_unlock(&insn_emulation_mutex); return ret; }
@@ -250,7 +251,7 @@ static void __init register_insn_emulation_sysctl(void) sysctl->maxlen = sizeof(int);
sysctl->procname = insn->ops->name; - sysctl->data = insn; + sysctl->data = &insn->current_mode; sysctl->extra1 = &insn->min; sysctl->extra2 = &insn->max; sysctl->proc_handler = emulation_proc_handler;
From: Jan Kara jack@suse.cz
[ Upstream commit fa78f336937240d1bc598db817d638086060e7e9 ]
Add checks verifying number of inodes stored in the superblock matches the number computed from number of inodes per group. Also verify we have at least one block worth of inodes per group. This prevents crashes on corrupted filesystems.
Reported-by: syzbot+d273f7d7f58afd93be48@syzkaller.appspotmail.com Signed-off-by: Jan Kara jack@suse.cz Signed-off-by: Sasha Levin sashal@kernel.org --- fs/ext2/super.c | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-)
diff --git a/fs/ext2/super.c b/fs/ext2/super.c index ad9fd08f66ba..44a1f356aca2 100644 --- a/fs/ext2/super.c +++ b/fs/ext2/super.c @@ -1088,9 +1088,10 @@ static int ext2_fill_super(struct super_block *sb, void *data, int silent) sbi->s_frags_per_group); goto failed_mount; } - if (sbi->s_inodes_per_group > sb->s_blocksize * 8) { + if (sbi->s_inodes_per_group < sbi->s_inodes_per_block || + sbi->s_inodes_per_group > sb->s_blocksize * 8) { ext2_msg(sb, KERN_ERR, - "error: #inodes per group too big: %lu", + "error: invalid #inodes per group: %lu", sbi->s_inodes_per_group); goto failed_mount; } @@ -1100,6 +1101,13 @@ static int ext2_fill_super(struct super_block *sb, void *data, int silent) sbi->s_groups_count = ((le32_to_cpu(es->s_blocks_count) - le32_to_cpu(es->s_first_data_block) - 1) / EXT2_BLOCKS_PER_GROUP(sb)) + 1; + if ((u64)sbi->s_groups_count * sbi->s_inodes_per_group != + le32_to_cpu(es->s_inodes_count)) { + ext2_msg(sb, KERN_ERR, "error: invalid #inodes: %u vs computed %llu", + le32_to_cpu(es->s_inodes_count), + (u64)sbi->s_groups_count * sbi->s_inodes_per_group); + goto failed_mount; + } db_count = (sbi->s_groups_count + EXT2_DESC_PER_BLOCK(sb) - 1) / EXT2_DESC_PER_BLOCK(sb); sbi->s_group_desc = kmalloc_array (db_count,
From: Alexander Stein alexander.stein@ew.tq-group.com
[ Upstream commit 5655699cf5cff9f4c4ee703792156bdd05d1addf ]
All 3 properties are required by sram.yaml. Fixes the dtbs_check warning: sram@900000: '#address-cells' is a required property sram@900000: '#size-cells' is a required property sram@900000: 'ranges' is a required property
Signed-off-by: Alexander Stein alexander.stein@ew.tq-group.com Signed-off-by: Shawn Guo shawnguo@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- arch/arm/boot/dts/imx6ul.dtsi | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/arch/arm/boot/dts/imx6ul.dtsi b/arch/arm/boot/dts/imx6ul.dtsi index adecd6e08468..07850587ee0a 100644 --- a/arch/arm/boot/dts/imx6ul.dtsi +++ b/arch/arm/boot/dts/imx6ul.dtsi @@ -169,6 +169,9 @@ soc { ocram: sram@900000 { compatible = "mmio-sram"; reg = <0x00900000 0x20000>; + ranges = <0 0x00900000 0x20000>; + #address-cells = <1>; + #size-cells = <1>; };
dma_apbh: dma-apbh@1804000 {
From: Alexander Stein alexander.stein@ew.tq-group.com
[ Upstream commit edb67843983bbdf61b4c8c3c50618003d38bb4ae ]
operating-points is a uint32-matrix as per opp-v1.yaml. Change it accordingly. While at it, change fsl,soc-operating-points as well, although there is no bindings file (yet). But they should have the same format. Fixes the dt_binding_check warning: cpu@0: operating-points:0: [696000, 1275000, 528000, 1175000, 396000, 1025000, 198000, 950000] is too long cpu@0: operating-points:0: Additional items are not allowed (528000, 1175000, 396000, 1025000, 198000, 950000 were unexpected)
Signed-off-by: Alexander Stein alexander.stein@ew.tq-group.com Signed-off-by: Shawn Guo shawnguo@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- arch/arm/boot/dts/imx6ul.dtsi | 22 ++++++++++------------ 1 file changed, 10 insertions(+), 12 deletions(-)
diff --git a/arch/arm/boot/dts/imx6ul.dtsi b/arch/arm/boot/dts/imx6ul.dtsi index 07850587ee0a..605792fa67b2 100644 --- a/arch/arm/boot/dts/imx6ul.dtsi +++ b/arch/arm/boot/dts/imx6ul.dtsi @@ -61,20 +61,18 @@ cpu0: cpu@0 { reg = <0>; clock-latency = <61036>; /* two CLK32 periods */ #cooling-cells = <2>; - operating-points = < + operating-points = /* kHz uV */ - 696000 1275000 - 528000 1175000 - 396000 1025000 - 198000 950000 - >; - fsl,soc-operating-points = < + <696000 1275000>, + <528000 1175000>, + <396000 1025000>, + <198000 950000>; + fsl,soc-operating-points = /* KHz uV */ - 696000 1275000 - 528000 1175000 - 396000 1175000 - 198000 1175000 - >; + <696000 1275000>, + <528000 1175000>, + <396000 1175000>, + <198000 1175000>; clocks = <&clks IMX6UL_CLK_ARM>, <&clks IMX6UL_CLK_PLL2_BUS>, <&clks IMX6UL_CLK_PLL2_PFD2>,
From: Alexander Stein alexander.stein@ew.tq-group.com
[ Upstream commit 1a884d17ca324531634cce82e9f64c0302bdf7de ]
In yaml binding "fsl,imx6ul-lcdif" is listed as compatible to imx6sx-lcdif, but not imx28-lcdif. Change the list accordingly. Fixes the dt_binding_check warning: lcdif@21c8000: compatible: 'oneOf' conditional failed, one must be fixed: ['fsl,imx6ul-lcdif', 'fsl,imx28-lcdif'] is too long Additional items are not allowed ('fsl,imx28-lcdif' was unexpected) 'fsl,imx6ul-lcdif' is not one of ['fsl,imx23-lcdif', 'fsl,imx28-lcdif', 'fsl,imx6sx-lcdif'] 'fsl,imx6sx-lcdif' was expected
Signed-off-by: Alexander Stein alexander.stein@ew.tq-group.com Signed-off-by: Shawn Guo shawnguo@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- arch/arm/boot/dts/imx6ul.dtsi | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm/boot/dts/imx6ul.dtsi b/arch/arm/boot/dts/imx6ul.dtsi index 605792fa67b2..d91baa74e608 100644 --- a/arch/arm/boot/dts/imx6ul.dtsi +++ b/arch/arm/boot/dts/imx6ul.dtsi @@ -940,7 +940,7 @@ cpu_speed_grade: speed-grade@10 { };
lcdif: lcdif@21c8000 { - compatible = "fsl,imx6ul-lcdif", "fsl,imx28-lcdif"; + compatible = "fsl,imx6ul-lcdif", "fsl,imx6sx-lcdif"; reg = <0x021c8000 0x4000>; interrupts = <GIC_SPI 5 IRQ_TYPE_LEVEL_HIGH>; clocks = <&clks IMX6UL_CLK_LCDIF_PIX>,
From: Alexander Stein alexander.stein@ew.tq-group.com
[ Upstream commit 0c6cf86e1ab433b2d421880fdd9c6e954f404948 ]
imx6ul is not compatible to imx6sx, both have different erratas. Fixes the dt_binding_check warning: spi@21e0000: compatible: 'oneOf' conditional failed, one must be fixed: ['fsl,imx6ul-qspi', 'fsl,imx6sx-qspi'] is too long Additional items are not allowed ('fsl,imx6sx-qspi' was unexpected) 'fsl,imx6ul-qspi' is not one of ['fsl,ls1043a-qspi'] 'fsl,imx6ul-qspi' is not one of ['fsl,imx8mq-qspi'] 'fsl,ls1021a-qspi' was expected 'fsl,imx7d-qspi' was expected
Signed-off-by: Alexander Stein alexander.stein@ew.tq-group.com Signed-off-by: Shawn Guo shawnguo@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- arch/arm/boot/dts/imx6ul.dtsi | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm/boot/dts/imx6ul.dtsi b/arch/arm/boot/dts/imx6ul.dtsi index d91baa74e608..334638ff5075 100644 --- a/arch/arm/boot/dts/imx6ul.dtsi +++ b/arch/arm/boot/dts/imx6ul.dtsi @@ -953,7 +953,7 @@ lcdif: lcdif@21c8000 { qspi: qspi@21e0000 { #address-cells = <1>; #size-cells = <0>; - compatible = "fsl,imx6ul-qspi", "fsl,imx6sx-qspi"; + compatible = "fsl,imx6ul-qspi"; reg = <0x021e0000 0x4000>, <0x60000000 0x10000000>; reg-names = "QuadSPI", "QuadSPI-memory"; interrupts = <GIC_SPI 107 IRQ_TYPE_LEVEL_HIGH>;
From: Liang He windhl@126.com
[ Upstream commit 50b87a32a79bca6e275918a711fb8cc55e16d739 ]
In omapdss_init_fbdev(), of_find_node_by_name() will return a node pointer with refcount incremented. We should use of_node_put() when it is not used anymore.
Signed-off-by: Liang He windhl@126.com Message-Id: 20220617145803.4050918-1-windhl@126.com Signed-off-by: Tony Lindgren tony@atomide.com Signed-off-by: Sasha Levin sashal@kernel.org --- arch/arm/mach-omap2/display.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/arch/arm/mach-omap2/display.c b/arch/arm/mach-omap2/display.c index 5d73f2c0b117..dd2ff10790ab 100644 --- a/arch/arm/mach-omap2/display.c +++ b/arch/arm/mach-omap2/display.c @@ -211,6 +211,7 @@ static int __init omapdss_init_fbdev(void) node = of_find_node_by_name(NULL, "omap4_padconf_global"); if (node) omap4_dsi_mux_syscon = syscon_node_to_regmap(node); + of_node_put(node);
return 0; }
From: Hans de Goede hdegoede@redhat.com
[ Upstream commit 0dd6db359e5f206cbf1dd1fd40dd211588cd2725 ]
Somehow the "ThinkPad X1 Carbon 6th" entry ended up twice in the struct dmi_system_id acpi_ec_no_wakeup[] array. Remove one of the entries.
Signed-off-by: Hans de Goede hdegoede@redhat.com Signed-off-by: Rafael J. Wysocki rafael.j.wysocki@intel.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/acpi/ec.c | 7 ------- 1 file changed, 7 deletions(-)
diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c index e3df3dda0332..3394ec64fe95 100644 --- a/drivers/acpi/ec.c +++ b/drivers/acpi/ec.c @@ -2118,13 +2118,6 @@ static const struct dmi_system_id acpi_ec_no_wakeup[] = { DMI_MATCH(DMI_PRODUCT_FAMILY, "Thinkpad X1 Carbon 6th"), }, }, - { - .ident = "ThinkPad X1 Carbon 6th", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), - DMI_MATCH(DMI_PRODUCT_FAMILY, "ThinkPad X1 Carbon 6th"), - }, - }, { .ident = "ThinkPad X1 Yoga 3rd", .matches = {
From: Manyi Li limanyi@uniontech.com
[ Upstream commit 4b7ef7b05afcde44142225c184bf43a0cd9e2178 ]
[821d6f0359b0614792ab8e2fb93b503e25a65079] is to make machines produced from 2012 to now not saving NVS region to accelerate S3.
But, Lenovo G40-45, a platform released in 2015, still needs NVS memory saving during S3. A quirk is introduced for this platform.
Signed-off-by: Manyi Li limanyi@uniontech.com Signed-off-by: Rafael J. Wysocki rafael.j.wysocki@intel.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/acpi/sleep.c | 8 ++++++++ 1 file changed, 8 insertions(+)
diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c index 847db3edcb5b..a3b4ac97793f 100644 --- a/drivers/acpi/sleep.c +++ b/drivers/acpi/sleep.c @@ -359,6 +359,14 @@ static const struct dmi_system_id acpisleep_dmi_table[] __initconst = { DMI_MATCH(DMI_PRODUCT_NAME, "80E3"), }, }, + { + .callback = init_nvs_save_s3, + .ident = "Lenovo G40-45", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), + DMI_MATCH(DMI_PRODUCT_NAME, "80E1"), + }, + }, /* * https://bugzilla.kernel.org/show_bug.cgi?id=196907 * Some Dell XPS13 9360 cannot do suspend-to-idle using the Low Power
From: huhai huhai@kylinos.cn
[ Upstream commit b4f1f61ed5928b1128e60e38d0dffa16966f06dc ]
register_device_clock() misses a check for platform_device_register_simple(). Add a check to fix it.
Signed-off-by: huhai huhai@kylinos.cn Signed-off-by: Rafael J. Wysocki rafael.j.wysocki@intel.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/acpi/acpi_lpss.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/drivers/acpi/acpi_lpss.c b/drivers/acpi/acpi_lpss.c index ded6c5c17fd7..144cda7da7ee 100644 --- a/drivers/acpi/acpi_lpss.c +++ b/drivers/acpi/acpi_lpss.c @@ -401,6 +401,9 @@ static int register_device_clock(struct acpi_device *adev, if (!lpss_clk_dev) lpt_register_clock_device();
+ if (IS_ERR(lpss_clk_dev)) + return PTR_ERR(lpss_clk_dev); + clk_data = platform_get_drvdata(lpss_clk_dev); if (!clk_data) return -ENODEV;
From: Robert Marko robimarko@gmail.com
[ Upstream commit b39961659ffc3c3a9e3d0d43b0476547b5f35d49 ]
Per schema it should be nand-controller@79b0000 instead of nand@79b0000. Fix it to match nand-controller.yaml requirements.
Signed-off-by: Robert Marko robimarko@gmail.com Reviewed-by: Krzysztof Kozlowski krzysztof.kozlowski@linaro.org Signed-off-by: Bjorn Andersson bjorn.andersson@linaro.org Link: https://lore.kernel.org/r/20220621120642.518575-1-robimarko@gmail.com Signed-off-by: Sasha Levin sashal@kernel.org --- arch/arm64/boot/dts/qcom/ipq8074.dtsi | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm64/boot/dts/qcom/ipq8074.dtsi b/arch/arm64/boot/dts/qcom/ipq8074.dtsi index f48d14cd10a3..bdee07305ce5 100644 --- a/arch/arm64/boot/dts/qcom/ipq8074.dtsi +++ b/arch/arm64/boot/dts/qcom/ipq8074.dtsi @@ -261,7 +261,7 @@ qpic_bam: dma@7984000 { status = "disabled"; };
- qpic_nand: nand@79b0000 { + qpic_nand: nand-controller@79b0000 { compatible = "qcom,ipq8074-nand"; reg = <0x79b0000 0x10000>; #address-cells = <1>;
From: Tetsuo Handa penguin-kernel@I-love.SAKURA.ne.jp
[ Upstream commit 8386c414e27caba8501119948e9551e52b527f59 ]
syzbot is reporting hung task at misc_open() [1], for there is a race window of AB-BA deadlock which involves probe_count variable. Currently wait_for_device_probe() from snapshot_open() from misc_open() can sleep forever with misc_mtx held if probe_count cannot become 0.
When a device is probed by hub_event() work function, probe_count is incremented before the probe function starts, and probe_count is decremented after the probe function completed.
There are three cases that can prevent probe_count from dropping to 0.
(a) A device being probed stopped responding (i.e. broken/malicious hardware).
(b) A process emulating a USB device using /dev/raw-gadget interface stopped responding for some reason.
(c) New device probe requests keeps coming in before existing device probe requests complete.
The phenomenon syzbot is reporting is (b). A process which is holding system_transition_mutex and misc_mtx is waiting for probe_count to become 0 inside wait_for_device_probe(), but the probe function which is called from hub_event() work function is waiting for the processes which are blocked at mutex_lock(&misc_mtx) to respond via /dev/raw-gadget interface.
This patch mitigates (b) by deferring wait_for_device_probe() from snapshot_open() to snapshot_write() and snapshot_ioctl(). Please note that the possibility of (b) remains as long as any thread which is emulating a USB device via /dev/raw-gadget interface can be blocked by uninterruptible blocking operations (e.g. mutex_lock()).
Please also note that (a) and (c) are not addressed. Regarding (c), we should change the code to wait for only one device which contains the image for resuming from hibernation. I don't know how to address (a), for use of timeout for wait_for_device_probe() might result in loss of user data in the image. Maybe we should require the userland to wait for the image device before opening /dev/snapshot interface.
Link: https://syzkaller.appspot.com/bug?extid=358c9ab4c93da7b7238c [1] Reported-by: syzbot syzbot+358c9ab4c93da7b7238c@syzkaller.appspotmail.com Signed-off-by: Tetsuo Handa penguin-kernel@I-love.SAKURA.ne.jp Tested-by: syzbot syzbot+358c9ab4c93da7b7238c@syzkaller.appspotmail.com Signed-off-by: Rafael J. Wysocki rafael.j.wysocki@intel.com Signed-off-by: Sasha Levin sashal@kernel.org --- kernel/power/user.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-)
diff --git a/kernel/power/user.c b/kernel/power/user.c index 2d8b60a3c86b..6a11154b3d52 100644 --- a/kernel/power/user.c +++ b/kernel/power/user.c @@ -29,6 +29,7 @@
#include "power.h"
+static bool need_wait;
#define SNAPSHOT_MINOR 231
@@ -82,7 +83,7 @@ static int snapshot_open(struct inode *inode, struct file *filp) * Resuming. We may need to wait for the image device to * appear. */ - wait_for_device_probe(); + need_wait = true;
data->swap = -1; data->mode = O_WRONLY; @@ -174,6 +175,11 @@ static ssize_t snapshot_write(struct file *filp, const char __user *buf, ssize_t res; loff_t pg_offp = *offp & ~PAGE_MASK;
+ if (need_wait) { + wait_for_device_probe(); + need_wait = false; + } + lock_system_sleep();
data = filp->private_data; @@ -209,6 +215,11 @@ static long snapshot_ioctl(struct file *filp, unsigned int cmd, loff_t size; sector_t offset;
+ if (need_wait) { + wait_for_device_probe(); + need_wait = false; + } + if (_IOC_TYPE(cmd) != SNAPSHOT_IOC_MAGIC) return -ENOTTY; if (_IOC_NR(cmd) > SNAPSHOT_IOC_MAXNR)
From: Xiu Jianfeng xiujianfeng@huawei.com
[ Upstream commit 15ec76fb29be31df2bccb30fc09875274cba2776 ]
Just like next_entry(), boundary check is necessary to prevent memory out-of-bound access.
Signed-off-by: Xiu Jianfeng xiujianfeng@huawei.com Signed-off-by: Paul Moore paul@paul-moore.com Signed-off-by: Sasha Levin sashal@kernel.org --- security/selinux/ss/policydb.h | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/security/selinux/ss/policydb.h b/security/selinux/ss/policydb.h index 215f8f30ac5a..2a479785ebd4 100644 --- a/security/selinux/ss/policydb.h +++ b/security/selinux/ss/policydb.h @@ -360,6 +360,8 @@ static inline int put_entry(const void *buf, size_t bytes, int num, struct polic { size_t len = bytes * num;
+ if (len > fp->len) + return -EINVAL; memcpy(fp->data, buf, len); fp->data += len; fp->len -= len;
From: Russell King (Oracle) rmk+kernel@armlinux.org.uk
[ Upstream commit ec85bd369fd2bfaed6f45dd678706429d4f75b48 ]
When offset is larger than the size of the bit array, we should not attempt to access the array as we can perform an access beyond the end of the array. Fix this by changing the pre-condition.
Using "cmp r2, r1; bhs ..." covers us for the size == 0 case, since this will always take the branch when r1 is zero, irrespective of the value of r2. This means we can fix this bug without adding any additional code!
Tested-by: Guenter Roeck linux@roeck-us.net Signed-off-by: Russell King (Oracle) rmk+kernel@armlinux.org.uk Signed-off-by: Sasha Levin sashal@kernel.org --- arch/arm/lib/findbit.S | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-)
diff --git a/arch/arm/lib/findbit.S b/arch/arm/lib/findbit.S index 7848780e8834..20fef6c41f6f 100644 --- a/arch/arm/lib/findbit.S +++ b/arch/arm/lib/findbit.S @@ -43,8 +43,8 @@ ENDPROC(_find_first_zero_bit_le) * Prototype: int find_next_zero_bit(void *addr, unsigned int maxbit, int offset) */ ENTRY(_find_next_zero_bit_le) - teq r1, #0 - beq 3b + cmp r2, r1 + bhs 3b ands ip, r2, #7 beq 1b @ If new byte, goto old routine ARM( ldrb r3, [r0, r2, lsr #3] ) @@ -84,8 +84,8 @@ ENDPROC(_find_first_bit_le) * Prototype: int find_next_zero_bit(void *addr, unsigned int maxbit, int offset) */ ENTRY(_find_next_bit_le) - teq r1, #0 - beq 3b + cmp r2, r1 + bhs 3b ands ip, r2, #7 beq 1b @ If new byte, goto old routine ARM( ldrb r3, [r0, r2, lsr #3] ) @@ -118,8 +118,8 @@ ENTRY(_find_first_zero_bit_be) ENDPROC(_find_first_zero_bit_be)
ENTRY(_find_next_zero_bit_be) - teq r1, #0 - beq 3b + cmp r2, r1 + bhs 3b ands ip, r2, #7 beq 1b @ If new byte, goto old routine eor r3, r2, #0x18 @ big endian byte ordering @@ -152,8 +152,8 @@ ENTRY(_find_first_bit_be) ENDPROC(_find_first_bit_be)
ENTRY(_find_next_bit_be) - teq r1, #0 - beq 3b + cmp r2, r1 + bhs 3b ands ip, r2, #7 beq 1b @ If new byte, goto old routine eor r3, r2, #0x18 @ big endian byte ordering
From: Miaoqian Lin linmq006@gmail.com
[ Upstream commit a2106f38077e78afcb4bf98fdda3e162118cfb3d ]
of_find_matching_node() returns a node pointer with refcount incremented, we should use of_node_put() on it when not need anymore. Add missing of_node_put() to avoid refcount leak.
Fixes: 5e68c0fc8df8 ("soc: amlogic: Add Meson6/Meson8/Meson8b/Meson8m2 SoC Information driver") Signed-off-by: Miaoqian Lin linmq006@gmail.com Reviewed-by: Martin Blumenstingl martin.blumenstingl@googlemail.com Signed-off-by: Neil Armstrong narmstrong@baylibre.com Link: https://lore.kernel.org/r/20220524065729.33689-1-linmq006@gmail.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/soc/amlogic/meson-mx-socinfo.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/soc/amlogic/meson-mx-socinfo.c b/drivers/soc/amlogic/meson-mx-socinfo.c index 78f0f1aeca57..92125dd65f33 100644 --- a/drivers/soc/amlogic/meson-mx-socinfo.c +++ b/drivers/soc/amlogic/meson-mx-socinfo.c @@ -126,6 +126,7 @@ static int __init meson_mx_socinfo_init(void) np = of_find_matching_node(NULL, meson_mx_socinfo_analog_top_ids); if (np) { analog_top_regmap = syscon_node_to_regmap(np); + of_node_put(np); if (IS_ERR(analog_top_regmap)) return PTR_ERR(analog_top_regmap);
From: Miaoqian Lin linmq006@gmail.com
[ Upstream commit cb23389a2458c2e4bfd6c86a513cbbe1c4d35e76 ]
of_find_matching_node() returns a node pointer with refcount incremented, we should use of_node_put() on it when not need anymore. Add missing of_node_put() to avoid refcount leak.
Fixes: b8eb35fd594a ("ARM: bcm281xx: Add L2 cache enable code") Signed-off-by: Miaoqian Lin linmq006@gmail.com Signed-off-by: Florian Fainelli f.fainelli@gmail.com Signed-off-by: Sasha Levin sashal@kernel.org --- arch/arm/mach-bcm/bcm_kona_smc.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/arch/arm/mach-bcm/bcm_kona_smc.c b/arch/arm/mach-bcm/bcm_kona_smc.c index a55a7ecf146a..dd0b4195e629 100644 --- a/arch/arm/mach-bcm/bcm_kona_smc.c +++ b/arch/arm/mach-bcm/bcm_kona_smc.c @@ -54,6 +54,7 @@ int __init bcm_kona_smc_init(void) return -ENODEV;
prop_val = of_get_address(node, 0, &prop_size, NULL); + of_node_put(node); if (!prop_val) return -EINVAL;
From: Johan Hovold johan@kernel.org
[ Upstream commit 229e73d46994f15314f58b2d39bf952111d89193 ]
Make sure to free the platform device in the unlikely event that registration fails.
Fixes: 7a67832c7e44 ("libnvdimm, e820: make CONFIG_X86_PMEM_LEGACY a tristate option") Signed-off-by: Johan Hovold johan@kernel.org Signed-off-by: Borislav Petkov bp@suse.de Link: https://lore.kernel.org/r/20220620140723.9810-1-johan@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- arch/x86/kernel/pmem.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/arch/x86/kernel/pmem.c b/arch/x86/kernel/pmem.c index 6b07faaa1579..23154d24b117 100644 --- a/arch/x86/kernel/pmem.c +++ b/arch/x86/kernel/pmem.c @@ -27,6 +27,11 @@ static __init int register_e820_pmem(void) * simply here to trigger the module to load on demand. */ pdev = platform_device_alloc("e820_pmem", -1); - return platform_device_add(pdev); + + rc = platform_device_add(pdev); + if (rc) + platform_device_put(pdev); + + return rc; } device_initcall(register_e820_pmem);
From: Krzysztof Kozlowski krzysztof.kozlowski@linaro.org
[ Upstream commit 30b276fca5c0644f3cb17bceb1bd6a626c670184 ]
The AST2500 EVB board should have dedicated compatible.
Fixes: 02440622656d ("arm/dst: Add Aspeed ast2500 device tree") Signed-off-by: Krzysztof Kozlowski krzysztof.kozlowski@linaro.org Link: https://lore.kernel.org/r/20220529104928.79636-4-krzysztof.kozlowski@linaro.... Signed-off-by: Sasha Levin sashal@kernel.org --- arch/arm/boot/dts/aspeed-ast2500-evb.dts | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm/boot/dts/aspeed-ast2500-evb.dts b/arch/arm/boot/dts/aspeed-ast2500-evb.dts index 2375449c02d0..10626452878a 100644 --- a/arch/arm/boot/dts/aspeed-ast2500-evb.dts +++ b/arch/arm/boot/dts/aspeed-ast2500-evb.dts @@ -5,7 +5,7 @@
/ { model = "AST2500 EVB"; - compatible = "aspeed,ast2500"; + compatible = "aspeed,ast2500-evb", "aspeed,ast2500";
aliases { serial4 = &uart5;
From: Michael Walle michael@walle.cc
[ Upstream commit ab3f045774f704c4e7b6a878102f4e9d4ae7bc74 ]
If both the model and the compatible properties are missing, then machine will not be set. Initialize it with NULL.
Fixes: 34c1c21e94ac ("soc: fsl: fix section mismatch build warnings") Signed-off-by: Michael Walle michael@walle.cc Acked-by: Arnd Bergmann arnd@arndb.de Signed-off-by: Shawn Guo shawnguo@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/soc/fsl/guts.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/soc/fsl/guts.c b/drivers/soc/fsl/guts.c index 302e0c8d69d9..6693c32e7447 100644 --- a/drivers/soc/fsl/guts.c +++ b/drivers/soc/fsl/guts.c @@ -136,7 +136,7 @@ static int fsl_guts_probe(struct platform_device *pdev) struct device *dev = &pdev->dev; struct resource *res; const struct fsl_soc_die_attr *soc_die; - const char *machine; + const char *machine = NULL; u32 svr;
/* Initialize guts */
From: Miaoqian Lin linmq006@gmail.com
[ Upstream commit 942228fbf5d4901112178b93d41225be7c0dd9de ]
of_find_matching_node() returns a node pointer with refcount incremented, we should use of_node_put() on it when not need anymore. Add missing of_node_put() to avoid refcount leak.
Fixes: 1e037794f7f0 ("ARM: OMAP3+: PRM: register interrupt information from DT") Signed-off-by: Miaoqian Lin linmq006@gmail.com Message-Id: 20220526073724.21169-1-linmq006@gmail.com Signed-off-by: Tony Lindgren tony@atomide.com Signed-off-by: Sasha Levin sashal@kernel.org --- arch/arm/mach-omap2/prm3xxx.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/arch/arm/mach-omap2/prm3xxx.c b/arch/arm/mach-omap2/prm3xxx.c index dfa65fc2c82b..30445849b5e3 100644 --- a/arch/arm/mach-omap2/prm3xxx.c +++ b/arch/arm/mach-omap2/prm3xxx.c @@ -711,6 +711,7 @@ static int omap3xxx_prm_late_init(void) }
irq_num = of_irq_get(np, 0); + of_node_put(np); if (irq_num == -EPROBE_DEFER) return irq_num;
From: Miaoqian Lin linmq006@gmail.com
[ Upstream commit d1ff2559cef0f6f8d97fba6337b28adb10689e16 ]
of_find_compatible_node() returns a node pointer with refcount incremented, we should use of_node_put() on it when done. Add missing of_node_put() to avoid refcount leak.
Fixes: 00f7dc636366 ("ARM: zynq: Add support for SOC_BUS") Signed-off-by: Miaoqian Lin linmq006@gmail.com Link: https://lore.kernel.org/r/20220605082807.21526-1-linmq006@gmail.com Signed-off-by: Michal Simek michal.simek@amd.com Signed-off-by: Sasha Levin sashal@kernel.org --- arch/arm/mach-zynq/common.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/arch/arm/mach-zynq/common.c b/arch/arm/mach-zynq/common.c index 6aba9ebf8041..a8b1b9c6626e 100644 --- a/arch/arm/mach-zynq/common.c +++ b/arch/arm/mach-zynq/common.c @@ -84,6 +84,7 @@ static int __init zynq_get_revision(void) }
zynq_devcfg_base = of_iomap(np, 0); + of_node_put(np); if (!zynq_devcfg_base) { pr_err("%s: Unable to map I/O memory\n", __func__); return -1;
From: Krzysztof Kozlowski krzysztof.kozlowski@linaro.org
[ Upstream commit e2759fa0676c9a32bbddb9aff955b54bb35066ad ]
The PM8841 temperature sensor has to define thermal-sensor-cells.
Fixes: dab8134ca072 ("ARM: dts: qcom: Add PM8841 functions device nodes") Signed-off-by: Krzysztof Kozlowski krzysztof.kozlowski@linaro.org Signed-off-by: Bjorn Andersson bjorn.andersson@linaro.org Link: https://lore.kernel.org/r/20220608112702.80873-2-krzysztof.kozlowski@linaro.... Signed-off-by: Sasha Levin sashal@kernel.org --- arch/arm/boot/dts/qcom-pm8841.dtsi | 1 + 1 file changed, 1 insertion(+)
diff --git a/arch/arm/boot/dts/qcom-pm8841.dtsi b/arch/arm/boot/dts/qcom-pm8841.dtsi index 2fd59c440903..c73e5b149ac5 100644 --- a/arch/arm/boot/dts/qcom-pm8841.dtsi +++ b/arch/arm/boot/dts/qcom-pm8841.dtsi @@ -25,6 +25,7 @@ temp-alarm@2400 { compatible = "qcom,spmi-temp-alarm"; reg = <0x2400>; interrupts = <4 0x24 0 IRQ_TYPE_EDGE_RISING>; + #thermal-sensor-cells = <0>; }; };
From: Yang Yingliang yangyingliang@huawei.com
[ Upstream commit 54872fea6a5ac967ec2272aea525d1438ac6735a ]
In error case in hisi_lpc_acpi_probe() after calling platform_device_add(), hisi_lpc_acpi_remove() can't release the failed 'pdev', so it will be leak, call platform_device_put() to fix this problem. I'v constructed this error case and tested this patch on D05 board.
Fixes: 99c0228d6ff1 ("HISI LPC: Re-Add ACPI child enumeration support") Reported-by: Hulk Robot hulkci@huawei.com Signed-off-by: Yang Yingliang yangyingliang@huawei.com Acked-by: John Garry john.garry@huawei.com Signed-off-by: Rafael J. Wysocki rafael.j.wysocki@intel.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/bus/hisi_lpc.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-)
diff --git a/drivers/bus/hisi_lpc.c b/drivers/bus/hisi_lpc.c index cbd970fb02f1..43342ea82afa 100644 --- a/drivers/bus/hisi_lpc.c +++ b/drivers/bus/hisi_lpc.c @@ -504,13 +504,13 @@ static int hisi_lpc_acpi_probe(struct device *hostdev) { struct acpi_device *adev = ACPI_COMPANION(hostdev); struct acpi_device *child; + struct platform_device *pdev; int ret;
/* Only consider the children of the host */ list_for_each_entry(child, &adev->children, node) { const char *hid = acpi_device_hid(child); const struct hisi_lpc_acpi_cell *cell; - struct platform_device *pdev; const struct resource *res; bool found = false; int num_res; @@ -573,22 +573,24 @@ static int hisi_lpc_acpi_probe(struct device *hostdev)
ret = platform_device_add_resources(pdev, res, num_res); if (ret) - goto fail; + goto fail_put_device;
ret = platform_device_add_data(pdev, cell->pdata, cell->pdata_size); if (ret) - goto fail; + goto fail_put_device;
ret = platform_device_add(pdev); if (ret) - goto fail; + goto fail_put_device;
acpi_device_set_enumerated(child); }
return 0;
+fail_put_device: + platform_device_put(pdev); fail: hisi_lpc_acpi_remove(hostdev); return ret;
From: Sireesh Kodali sireeshkodali1@gmail.com
[ Upstream commit 5458d6f2827cd30218570f266b8d238417461f2f ]
The smem-state properties for the pronto node were incorrectly labelled, reading `qcom,state*` rather than `qcom,smem-state*`. Fix that, allowing the stop state to be used.
Fixes: 88106096cbf8 ("ARM: dts: msm8916: Add and enable wcnss node") Signed-off-by: Sireesh Kodali sireeshkodali1@gmail.com Reviewed-by: Krzysztof Kozlowski krzysztof.kozlowski@linaro.org Reviewed-by: Stephan Gerhold stephan@gerhold.net Signed-off-by: Bjorn Andersson bjorn.andersson@linaro.org Link: https://lore.kernel.org/r/20220526141740.15834-3-sireeshkodali1@gmail.com Signed-off-by: Sasha Levin sashal@kernel.org --- arch/arm64/boot/dts/qcom/msm8916.dtsi | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/arm64/boot/dts/qcom/msm8916.dtsi b/arch/arm64/boot/dts/qcom/msm8916.dtsi index 078ae020a77b..1832687f7ba8 100644 --- a/arch/arm64/boot/dts/qcom/msm8916.dtsi +++ b/arch/arm64/boot/dts/qcom/msm8916.dtsi @@ -1039,8 +1039,8 @@ pronto: wcnss@a21b000 { vddmx-supply = <&pm8916_l3>; vddpx-supply = <&pm8916_l7>;
- qcom,state = <&wcnss_smp2p_out 0>; - qcom,state-names = "stop"; + qcom,smem-states = <&wcnss_smp2p_out 0>; + qcom,smem-state-names = "stop";
pinctrl-names = "default"; pinctrl-0 = <&wcnss_pin_a>;
From: Liang He windhl@126.com
[ Upstream commit 66efb665cd5ad69b27dca8571bf89fc6b9c628a4 ]
We should call the of_node_put() for the reference returned by of_get_child_by_name() which has increased the refcount.
Fixes: 40e20d68bb3f ("regulator: of: Add support for parsing regulator_state for suspend state") Signed-off-by: Liang He windhl@126.com Link: https://lore.kernel.org/r/20220715111027.391032-1-windhl@126.com Signed-off-by: Mark Brown broonie@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/regulator/of_regulator.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/regulator/of_regulator.c b/drivers/regulator/of_regulator.c index b255590aef36..b2bd7ee46c45 100644 --- a/drivers/regulator/of_regulator.c +++ b/drivers/regulator/of_regulator.c @@ -189,8 +189,12 @@ static void of_get_regulation_constraints(struct device_node *np, }
suspend_np = of_get_child_by_name(np, regulator_states[i]); - if (!suspend_np || !suspend_state) + if (!suspend_np) continue; + if (!suspend_state) { + of_node_put(suspend_np); + continue; + }
if (!of_property_read_u32(suspend_np, "regulator-mode", &pval)) {
From: Nicolas Saenz Julienne nsaenzju@redhat.com
[ Upstream commit 5c66d1b9b30f737fcef85a0b75bfe0590e16b62a ]
dequeue_task_rt() only decrements 'rt_rq->rt_nr_running' after having called sched_update_tick_dependency() preventing it from re-enabling the tick on systems that no longer have pending SCHED_RT tasks but have multiple runnable SCHED_OTHER tasks:
dequeue_task_rt() dequeue_rt_entity() dequeue_rt_stack() dequeue_top_rt_rq() sub_nr_running() // decrements rq->nr_running sched_update_tick_dependency() sched_can_stop_tick() // checks rq->rt.rt_nr_running, ... __dequeue_rt_entity() dec_rt_tasks() // decrements rq->rt.rt_nr_running ...
Every other scheduler class performs the operation in the opposite order, and sched_update_tick_dependency() expects the values to be updated as such. So avoid the misbehaviour by inverting the order in which the above operations are performed in the RT scheduler.
Fixes: 76d92ac305f2 ("sched: Migrate sched to use new tick dependency mask model") Signed-off-by: Nicolas Saenz Julienne nsaenzju@redhat.com Signed-off-by: Peter Zijlstra (Intel) peterz@infradead.org Reviewed-by: Valentin Schneider vschneid@redhat.com Reviewed-by: Phil Auld pauld@redhat.com Link: https://lore.kernel.org/r/20220628092259.330171-1-nsaenzju@redhat.com Signed-off-by: Sasha Levin sashal@kernel.org --- kernel/sched/rt.c | 15 +++++++++------ 1 file changed, 9 insertions(+), 6 deletions(-)
diff --git a/kernel/sched/rt.c b/kernel/sched/rt.c index 70e8cd395474..9c6c3572b131 100644 --- a/kernel/sched/rt.c +++ b/kernel/sched/rt.c @@ -434,7 +434,7 @@ static inline void rt_queue_push_tasks(struct rq *rq) #endif /* CONFIG_SMP */
static void enqueue_top_rt_rq(struct rt_rq *rt_rq); -static void dequeue_top_rt_rq(struct rt_rq *rt_rq); +static void dequeue_top_rt_rq(struct rt_rq *rt_rq, unsigned int count);
static inline int on_rt_rq(struct sched_rt_entity *rt_se) { @@ -516,7 +516,7 @@ static void sched_rt_rq_dequeue(struct rt_rq *rt_rq) rt_se = rt_rq->tg->rt_se[cpu];
if (!rt_se) { - dequeue_top_rt_rq(rt_rq); + dequeue_top_rt_rq(rt_rq, rt_rq->rt_nr_running); /* Kick cpufreq (see the comment in kernel/sched/sched.h). */ cpufreq_update_util(rq_of_rt_rq(rt_rq), 0); } @@ -602,7 +602,7 @@ static inline void sched_rt_rq_enqueue(struct rt_rq *rt_rq)
static inline void sched_rt_rq_dequeue(struct rt_rq *rt_rq) { - dequeue_top_rt_rq(rt_rq); + dequeue_top_rt_rq(rt_rq, rt_rq->rt_nr_running); }
static inline int rt_rq_throttled(struct rt_rq *rt_rq) @@ -1001,7 +1001,7 @@ static void update_curr_rt(struct rq *rq) }
static void -dequeue_top_rt_rq(struct rt_rq *rt_rq) +dequeue_top_rt_rq(struct rt_rq *rt_rq, unsigned int count) { struct rq *rq = rq_of_rt_rq(rt_rq);
@@ -1012,7 +1012,7 @@ dequeue_top_rt_rq(struct rt_rq *rt_rq)
BUG_ON(!rq->nr_running);
- sub_nr_running(rq, rt_rq->rt_nr_running); + sub_nr_running(rq, count); rt_rq->rt_queued = 0;
} @@ -1291,18 +1291,21 @@ static void __dequeue_rt_entity(struct sched_rt_entity *rt_se, unsigned int flag static void dequeue_rt_stack(struct sched_rt_entity *rt_se, unsigned int flags) { struct sched_rt_entity *back = NULL; + unsigned int rt_nr_running;
for_each_sched_rt_entity(rt_se) { rt_se->back = back; back = rt_se; }
- dequeue_top_rt_rq(rt_rq_of_se(back)); + rt_nr_running = rt_rq_of_se(back)->rt_nr_running;
for (rt_se = back; rt_se; rt_se = rt_se->back) { if (on_rt_rq(rt_se)) __dequeue_rt_entity(rt_se, flags); } + + dequeue_top_rt_rq(rt_rq_of_se(back), rt_nr_running); }
static void enqueue_rt_entity(struct sched_rt_entity *rt_se, unsigned int flags)
From: Markus Mayer mmayer@broadcom.com
[ Upstream commit 0cf51bfe999524377fbb71becb583b4ca6d07cfc ]
Include sys/time.h and pthread.h in tmon.h, so that types "pthread_mutex_t" and "struct timeval tv" are known when tmon.h references them.
Without these headers, compiling tmon against musl-libc will fail with these errors:
In file included from sysfs.c:31:0: tmon.h:47:8: error: unknown type name 'pthread_mutex_t' extern pthread_mutex_t input_lock; ^~~~~~~~~~~~~~~ make[3]: *** [<builtin>: sysfs.o] Error 1 make[3]: *** Waiting for unfinished jobs.... In file included from tui.c:31:0: tmon.h:54:17: error: field 'tv' has incomplete type struct timeval tv; ^~ make[3]: *** [<builtin>: tui.o] Error 1 make[2]: *** [Makefile:83: tmon] Error 2
Signed-off-by: Markus Mayer mmayer@broadcom.com Acked-by: Florian Fainelli f.fainelli@gmail.com Reviewed-by: Sumeet Pawnikar sumeet.r.pawnikar@intel.com Acked-by: Alejandro González alejandro.gonzalez.correo@gmail.com Tested-by: Alejandro González alejandro.gonzalez.correo@gmail.com Fixes: 94f69966faf8 ("tools/thermal: Introduce tmon, a tool for thermal subsystem") Link: https://lore.kernel.org/r/20220718031040.44714-1-f.fainelli@gmail.com Signed-off-by: Daniel Lezcano daniel.lezcano@linaro.org Signed-off-by: Sasha Levin sashal@kernel.org --- tools/thermal/tmon/tmon.h | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/tools/thermal/tmon/tmon.h b/tools/thermal/tmon/tmon.h index 9e3c49c547ac..7b090a6c95b6 100644 --- a/tools/thermal/tmon/tmon.h +++ b/tools/thermal/tmon/tmon.h @@ -36,6 +36,9 @@ #define NR_LINES_TZDATA 1 #define TMON_LOG_FILE "/var/tmp/tmon.log"
+#include <sys/time.h> +#include <pthread.h> + extern unsigned long ticktime; extern double time_elapsed; extern unsigned long target_temp_user;
From: Mike Snitzer snitzer@kernel.org
[ Upstream commit e120a5f1e78fab6223544e425015f393d90d6f0d ]
Otherwise PR ops may be issued while the broader DM device is being reconfigured, etc.
Fixes: 9c72bad1f31a ("dm: call PR reserve/unreserve on each underlying device") Signed-off-by: Mike Snitzer snitzer@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/md/dm.c | 5 +++++ 1 file changed, 5 insertions(+)
diff --git a/drivers/md/dm.c b/drivers/md/dm.c index d2ee97cd7d14..324d1dd58e2b 100644 --- a/drivers/md/dm.c +++ b/drivers/md/dm.c @@ -3122,6 +3122,11 @@ static int dm_call_pr(struct block_device *bdev, iterate_devices_callout_fn fn, goto out; ti = dm_table_get_target(table, 0);
+ if (dm_suspended_md(md)) { + ret = -EAGAIN; + goto out; + } + ret = -EINVAL; if (!ti->type->iterate_devices) goto out;
From: Krzysztof Kozlowski krzysztof.kozlowski@linaro.org
[ Upstream commit 1ee6c5abebd3cacf2ac4378d0ed4f57fd4850421 ]
Interrupt line can be configured on different hardware in different way, even inverted. Therefore driver should not enforce specific trigger type - edge rising - but instead rely on Devicetree to configure it.
All Qualcomm DTSI with WCN3990 define the interrupt type as level high, so the mismatch between DTSI and driver causes rebind issues:
$ echo 18800000.wifi > /sys/bus/platform/drivers/ath10k_snoc/unbind $ echo 18800000.wifi > /sys/bus/platform/drivers/ath10k_snoc/bind [ 44.763114] irq: type mismatch, failed to map hwirq-446 for interrupt-controller@17a00000! [ 44.763130] ath10k_snoc 18800000.wifi: error -ENXIO: IRQ index 0 not found [ 44.763140] ath10k_snoc 18800000.wifi: failed to initialize resource: -6
Tested-on: WCN3990 hw1.0 SNOC WLAN.HL.3.2.0.c8-00009-QCAHLSWSC8180XMTPLZ-1 Tested-on: WCN3990 hw1.0 SNOC WLAN.HL.2.0-01387-QCAHLSWMTPLZ-1
Fixes: c963a683e701 ("ath10k: add resource init and deinit for WCN3990") Signed-off-by: Krzysztof Kozlowski krzysztof.kozlowski@linaro.org Tested-by: Steev Klimaszewski steev@kali.org Signed-off-by: Kalle Valo quic_kvalo@quicinc.com Link: https://lore.kernel.org/r/20220513151516.357549-1-krzysztof.kozlowski@linaro... Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/wireless/ath/ath10k/snoc.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/drivers/net/wireless/ath/ath10k/snoc.c b/drivers/net/wireless/ath/ath10k/snoc.c index 241e6f0e1dfe..4489875fc87b 100644 --- a/drivers/net/wireless/ath/ath10k/snoc.c +++ b/drivers/net/wireless/ath/ath10k/snoc.c @@ -879,13 +879,12 @@ static void ath10k_snoc_init_napi(struct ath10k *ar) static int ath10k_snoc_request_irq(struct ath10k *ar) { struct ath10k_snoc *ar_snoc = ath10k_snoc_priv(ar); - int irqflags = IRQF_TRIGGER_RISING; int ret, id;
for (id = 0; id < CE_COUNT_MAX; id++) { ret = request_irq(ar_snoc->ce_irqs[id].irq_line, - ath10k_snoc_per_engine_handler, - irqflags, ce_name[id], ar); + ath10k_snoc_per_engine_handler, 0, + ce_name[id], ar); if (ret) { ath10k_err(ar, "failed to register IRQ handler for CE %d: %d",
From: Dan Carpenter dan.carpenter@oracle.com
[ Upstream commit b88d28146c30a8e14f0f012d56ebf19b68a348f4 ]
If the copy_from_user() fails or the user gives invalid date then the correct thing to do is to return a negative error code. (Currently it returns success).
I made a copy additional related cleanups: 1) There is no need to check "buffer" for NULL. That's handled by copy_from_user(). 2) The "h2c_len" variable cannot be negative because it is unsigned and because sscanf() does not return negative error codes.
Fixes: 610247f46feb ("rtlwifi: Improve debugging by using debugfs") Signed-off-by: Dan Carpenter dan.carpenter@oracle.com Signed-off-by: Kalle Valo kvalo@kernel.org Link: https://lore.kernel.org/r/YoOLnDkHgVltyXK7@kili Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/wireless/realtek/rtlwifi/debug.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/net/wireless/realtek/rtlwifi/debug.c b/drivers/net/wireless/realtek/rtlwifi/debug.c index 498994041bbc..474439fc2da1 100644 --- a/drivers/net/wireless/realtek/rtlwifi/debug.c +++ b/drivers/net/wireless/realtek/rtlwifi/debug.c @@ -370,8 +370,8 @@ static ssize_t rtl_debugfs_set_write_h2c(struct file *filp,
tmp_len = (count > sizeof(tmp) - 1 ? sizeof(tmp) - 1 : count);
- if (!buffer || copy_from_user(tmp, buffer, tmp_len)) - return count; + if (copy_from_user(tmp, buffer, tmp_len)) + return -EFAULT;
tmp[tmp_len] = '\0';
@@ -381,8 +381,8 @@ static ssize_t rtl_debugfs_set_write_h2c(struct file *filp, &h2c_data[4], &h2c_data[5], &h2c_data[6], &h2c_data[7]);
- if (h2c_len <= 0) - return count; + if (h2c_len == 0) + return -EINVAL;
for (i = 0; i < h2c_len; i++) h2c_data_packed[i] = (u8)h2c_data[i];
From: Alexey Kodanev aleksei.kodanev@bell-sw.com
[ Upstream commit 136f614931a2bb73616b292cf542da3a18daefd5 ]
The last case label can write two buffers 'mc_reg_address[j]' and 'mc_data[j]' with 'j' offset equal to SMC_NISLANDS_MC_REGISTER_ARRAY_SIZE since there are no checks for this value in both case labels after the last 'j++'.
Instead of changing '>' to '>=' there, add the bounds check at the start of the second 'case' (the first one already has it).
Also, remove redundant last checks for 'j' index bigger than array size. The expression is always false. Moreover, before or after the patch 'table->last' can be equal to SMC_NISLANDS_MC_REGISTER_ARRAY_SIZE and it seems it can be a valid value.
Detected using the static analysis tool - Svace. Fixes: 69e0b57a91ad ("drm/radeon/kms: add dpm support for cayman (v5)") Signed-off-by: Alexey Kodanev aleksei.kodanev@bell-sw.com Signed-off-by: Alex Deucher alexander.deucher@amd.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/radeon/ni_dpm.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/radeon/ni_dpm.c b/drivers/gpu/drm/radeon/ni_dpm.c index f86ca163dcf3..a7273c01de34 100644 --- a/drivers/gpu/drm/radeon/ni_dpm.c +++ b/drivers/gpu/drm/radeon/ni_dpm.c @@ -2738,10 +2738,10 @@ static int ni_set_mc_special_registers(struct radeon_device *rdev, table->mc_reg_table_entry[k].mc_data[j] |= 0x100; } j++; - if (j > SMC_NISLANDS_MC_REGISTER_ARRAY_SIZE) - return -EINVAL; break; case MC_SEQ_RESERVE_M >> 2: + if (j >= SMC_NISLANDS_MC_REGISTER_ARRAY_SIZE) + return -EINVAL; temp_reg = RREG32(MC_PMG_CMD_MRS1); table->mc_reg_address[j].s1 = MC_PMG_CMD_MRS1 >> 2; table->mc_reg_address[j].s0 = MC_SEQ_PMG_CMD_MRS1_LP >> 2; @@ -2750,8 +2750,6 @@ static int ni_set_mc_special_registers(struct radeon_device *rdev, (temp_reg & 0xffff0000) | (table->mc_reg_table_entry[k].mc_data[i] & 0x0000ffff); j++; - if (j > SMC_NISLANDS_MC_REGISTER_ARRAY_SIZE) - return -EINVAL; break; default: break;
From: Xinlei Lee xinlei.lee@mediatek.com
[ Upstream commit fa5d0a0205c34734c5b8daa77e39ac2817f63a10 ]
In the dsi_enable function, mtk_dsi_rxtx_control is to pull up the MIPI signal operation. Before dsi_disable, MIPI should also be pulled down by writing a register instead of disabling dsi.
If disable dsi without pulling the mipi signal low, the value of the register will still maintain the setting of the mipi signal being pulled high. After resume, even if the mipi signal is not pulled high, it will still be in the high state.
Fixes: 2e54c14e310f ("drm/mediatek: Add DSI sub driver")
Link: https://patchwork.kernel.org/project/linux-mediatek/patch/1653012007-11854-5... Signed-off-by: Jitao Shi jitao.shi@mediatek.com Signed-off-by: Xinlei Lee xinlei.lee@mediatek.com Reviewed-by: Rex-BC Chen rex-bc.chen@mediatek.com Signed-off-by: Chun-Kuang Hu chunkuang.hu@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/mediatek/mtk_dsi.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/gpu/drm/mediatek/mtk_dsi.c b/drivers/gpu/drm/mediatek/mtk_dsi.c index 0dd317ac5fe5..a629a69c2756 100644 --- a/drivers/gpu/drm/mediatek/mtk_dsi.c +++ b/drivers/gpu/drm/mediatek/mtk_dsi.c @@ -651,6 +651,8 @@ static void mtk_dsi_poweroff(struct mtk_dsi *dsi) mtk_dsi_reset_engine(dsi); mtk_dsi_lane0_ulp_mode_enter(dsi); mtk_dsi_clk_ulp_mode_enter(dsi); + /* set the lane number as 0 to pull down mipi */ + writel(0, dsi->regs + DSI_TXRX_CTRL);
mtk_dsi_disable(dsi);
From: Xu Wang vulab@iscas.ac.cn
[ Upstream commit e4c72c06c367758a14f227c847f9d623f1994ecf ]
Free the adap structure only after we are done using it. This patch just moves the put_device() down a bit to avoid the use after free.
Fixes: 611e12ea0f12 ("i2c: core: manage i2c bus device refcount in i2c_[get|put]_adapter") Signed-off-by: Xu Wang vulab@iscas.ac.cn [wsa: added comment to the code, added Fixes tag] Signed-off-by: Wolfram Sang wsa@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/i2c/i2c-core-base.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/i2c/i2c-core-base.c b/drivers/i2c/i2c-core-base.c index 2a43f4e46af0..9079be0d51d1 100644 --- a/drivers/i2c/i2c-core-base.c +++ b/drivers/i2c/i2c-core-base.c @@ -2273,8 +2273,9 @@ void i2c_put_adapter(struct i2c_adapter *adap) if (!adap) return;
- put_device(&adap->dev); module_put(adap->owner); + /* Should be last, otherwise we risk use-after-free with 'adap' */ + put_device(&adap->dev); } EXPORT_SYMBOL(i2c_put_adapter);
From: Zheyu Ma zheyuma97@gmail.com
[ Upstream commit fb730334e0f759d00f72168fbc555e5a95e35210 ]
We got the following warning when booting the kernel:
[ 3.243674] INFO: trying to register non-static key. [ 3.243922] The code is fine but needs lockdep annotation, or maybe [ 3.244230] you didn't initialize this object before use? [ 3.245642] Call Trace: [ 3.247836] lock_acquire+0xff/0x2d0 [ 3.248727] tw686x_audio_irq+0x1a5/0xcc0 [tw686x] [ 3.249211] tw686x_irq+0x1f9/0x480 [tw686x]
The lock 'vc->qlock' will be initialized in tw686x_video_init(), but the driver registers the irq before calling the tw686x_video_init(), and we got the warning.
Fix this by registering the irq at the end of probe
Fixes: 704a84ccdbf1 ("[media] media: Support Intersil/Techwell TW686x-based video capture cards") Signed-off-by: Zheyu Ma zheyuma97@gmail.com Signed-off-by: Hans Verkuil hverkuil-cisco@xs4all.nl Signed-off-by: Mauro Carvalho Chehab mchehab@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/media/pci/tw686x/tw686x-core.c | 18 ++++++++---------- 1 file changed, 8 insertions(+), 10 deletions(-)
diff --git a/drivers/media/pci/tw686x/tw686x-core.c b/drivers/media/pci/tw686x/tw686x-core.c index 7fb3f07bf022..8e759728ef22 100644 --- a/drivers/media/pci/tw686x/tw686x-core.c +++ b/drivers/media/pci/tw686x/tw686x-core.c @@ -318,13 +318,6 @@ static int tw686x_probe(struct pci_dev *pci_dev,
spin_lock_init(&dev->lock);
- err = request_irq(pci_dev->irq, tw686x_irq, IRQF_SHARED, - dev->name, dev); - if (err < 0) { - dev_err(&pci_dev->dev, "unable to request interrupt\n"); - goto iounmap; - } - timer_setup(&dev->dma_delay_timer, tw686x_dma_delay, 0);
/* @@ -336,18 +329,23 @@ static int tw686x_probe(struct pci_dev *pci_dev, err = tw686x_video_init(dev); if (err) { dev_err(&pci_dev->dev, "can't register video\n"); - goto free_irq; + goto iounmap; }
err = tw686x_audio_init(dev); if (err) dev_warn(&pci_dev->dev, "can't register audio\n");
+ err = request_irq(pci_dev->irq, tw686x_irq, IRQF_SHARED, + dev->name, dev); + if (err < 0) { + dev_err(&pci_dev->dev, "unable to request interrupt\n"); + goto iounmap; + } + pci_set_drvdata(pci_dev, dev); return 0;
-free_irq: - free_irq(pci_dev->irq, dev); iounmap: pci_iounmap(pci_dev, dev->mmio); free_region:
From: Pavel Skripkin paskripkin@gmail.com
[ Upstream commit 0ac4827f78c7ffe8eef074bc010e7e34bc22f533 ]
Syzbot reported use-after-free Read in ath9k_hif_usb_rx_cb() [0]. The problem was in incorrect htc_handle->drv_priv initialization.
Probable call trace which can trigger use-after-free:
ath9k_htc_probe_device() /* htc_handle->drv_priv = priv; */ ath9k_htc_wait_for_target() <--- Failed ieee80211_free_hw() <--- priv pointer is freed
<IRQ> ... ath9k_hif_usb_rx_cb() ath9k_hif_usb_rx_stream() RX_STAT_INC() <--- htc_handle->drv_priv access
In order to not add fancy protection for drv_priv we can move htc_handle->drv_priv initialization at the end of the ath9k_htc_probe_device() and add helper macro to make all *_STAT_* macros NULL safe, since syzbot has reported related NULL deref in that macros [1]
Link: https://syzkaller.appspot.com/bug?id=6ead44e37afb6866ac0c7dd121b4ce07cb665f6... [0] Link: https://syzkaller.appspot.com/bug?id=b8101ffcec107c0567a0cd8acbbacec91e9ee8d... [1] Fixes: fb9987d0f748 ("ath9k_htc: Support for AR9271 chipset.") Reported-and-tested-by: syzbot+03110230a11411024147@syzkaller.appspotmail.com Reported-and-tested-by: syzbot+c6dde1f690b60e0b9fbe@syzkaller.appspotmail.com Signed-off-by: Pavel Skripkin paskripkin@gmail.com Acked-by: Toke Høiland-Jørgensen toke@toke.dk Signed-off-by: Kalle Valo quic_kvalo@quicinc.com Link: https://lore.kernel.org/r/d57bbedc857950659bfacac0ab48790c1eda00c8.165514574... Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/wireless/ath/ath9k/htc.h | 10 +++++----- drivers/net/wireless/ath/ath9k/htc_drv_init.c | 3 ++- 2 files changed, 7 insertions(+), 6 deletions(-)
diff --git a/drivers/net/wireless/ath/ath9k/htc.h b/drivers/net/wireless/ath/ath9k/htc.h index 9f64e32381f9..81107100e368 100644 --- a/drivers/net/wireless/ath/ath9k/htc.h +++ b/drivers/net/wireless/ath/ath9k/htc.h @@ -325,11 +325,11 @@ static inline struct ath9k_htc_tx_ctl *HTC_SKB_CB(struct sk_buff *skb) }
#ifdef CONFIG_ATH9K_HTC_DEBUGFS - -#define TX_STAT_INC(c) (hif_dev->htc_handle->drv_priv->debug.tx_stats.c++) -#define TX_STAT_ADD(c, a) (hif_dev->htc_handle->drv_priv->debug.tx_stats.c += a) -#define RX_STAT_INC(c) (hif_dev->htc_handle->drv_priv->debug.skbrx_stats.c++) -#define RX_STAT_ADD(c, a) (hif_dev->htc_handle->drv_priv->debug.skbrx_stats.c += a) +#define __STAT_SAFE(expr) (hif_dev->htc_handle->drv_priv ? (expr) : 0) +#define TX_STAT_INC(c) __STAT_SAFE(hif_dev->htc_handle->drv_priv->debug.tx_stats.c++) +#define TX_STAT_ADD(c, a) __STAT_SAFE(hif_dev->htc_handle->drv_priv->debug.tx_stats.c += a) +#define RX_STAT_INC(c) __STAT_SAFE(hif_dev->htc_handle->drv_priv->debug.skbrx_stats.c++) +#define RX_STAT_ADD(c, a) __STAT_SAFE(hif_dev->htc_handle->drv_priv->debug.skbrx_stats.c += a) #define CAB_STAT_INC priv->debug.tx_stats.cab_queued++
#define TX_QSTAT_INC(q) (priv->debug.tx_stats.queue_stats[q]++) diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_init.c b/drivers/net/wireless/ath/ath9k/htc_drv_init.c index cb136d9d4621..49d587330990 100644 --- a/drivers/net/wireless/ath/ath9k/htc_drv_init.c +++ b/drivers/net/wireless/ath/ath9k/htc_drv_init.c @@ -946,7 +946,6 @@ int ath9k_htc_probe_device(struct htc_target *htc_handle, struct device *dev, priv->hw = hw; priv->htc = htc_handle; priv->dev = dev; - htc_handle->drv_priv = priv; SET_IEEE80211_DEV(hw, priv->dev);
ret = ath9k_htc_wait_for_target(priv); @@ -967,6 +966,8 @@ int ath9k_htc_probe_device(struct htc_target *htc_handle, struct device *dev, if (ret) goto err_init;
+ htc_handle->drv_priv = priv; + return 0;
err_init:
From: Alexey Kodanev aleksei.kodanev@bell-sw.com
[ Upstream commit a8eb8e6f7159c7c20c0ddac428bde3d110890aa7 ]
As a result of the execution of the inner while loop, the value of 'idx' can be equal to LINK_QUAL_MAX_RETRY_NUM. However, this is not checked after the loop and 'idx' is used to write the LINK_QUAL_MAX_RETRY_NUM size array 'lq_cmd->rs_table[idx]' below in the outer loop.
The fix is to check the new value of 'idx' inside the nested loop, and break both loops if index equals the size. Checking it at the start is now pointless, so let's remove it.
Detected using the static analysis tool - Svace.
Fixes: be663ab67077 ("iwlwifi: split the drivers for agn and legacy devices 3945/4965") Signed-off-by: Alexey Kodanev aleksei.kodanev@bell-sw.com Signed-off-by: Kalle Valo kvalo@kernel.org Link: https://lore.kernel.org/r/20220608171614.28891-1-aleksei.kodanev@bell-sw.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/wireless/intel/iwlegacy/4965-rs.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/net/wireless/intel/iwlegacy/4965-rs.c b/drivers/net/wireless/intel/iwlegacy/4965-rs.c index 54ff83829afb..f204e139e5f0 100644 --- a/drivers/net/wireless/intel/iwlegacy/4965-rs.c +++ b/drivers/net/wireless/intel/iwlegacy/4965-rs.c @@ -2422,7 +2422,7 @@ il4965_rs_fill_link_cmd(struct il_priv *il, struct il_lq_sta *lq_sta, /* Repeat initial/next rate. * For legacy IL_NUMBER_TRY == 1, this loop will not execute. * For HT IL_HT_NUMBER_TRY == 3, this executes twice. */ - while (repeat_rate > 0 && idx < LINK_QUAL_MAX_RETRY_NUM) { + while (repeat_rate > 0) { if (is_legacy(tbl_type.lq_type)) { if (ant_toggle_cnt < NUM_TRY_BEFORE_ANT_TOGGLE) ant_toggle_cnt++; @@ -2441,6 +2441,8 @@ il4965_rs_fill_link_cmd(struct il_priv *il, struct il_lq_sta *lq_sta, cpu_to_le32(new_rate); repeat_rate--; idx++; + if (idx >= LINK_QUAL_MAX_RETRY_NUM) + goto out; }
il4965_rs_get_tbl_info_from_mcs(new_rate, lq_sta->band, @@ -2485,6 +2487,7 @@ il4965_rs_fill_link_cmd(struct il_priv *il, struct il_lq_sta *lq_sta, repeat_rate--; }
+out: lq_cmd->agg_params.agg_frame_cnt_limit = LINK_QUAL_AGG_FRAME_LIMIT_DEF; lq_cmd->agg_params.agg_dis_start_th = LINK_QUAL_AGG_DISABLE_START_DEF;
From: Jiasheng Jiang jiasheng@iscas.ac.cn
[ Upstream commit 831463667b5f4f1e5bce9c3b94e9e794d2bc8923 ]
As mipi_dsi_driver_register could return error if fails, it should be better to check the return value and return error if fails. Moreover, if i2c_add_driver fails, mipi_dsi_driver_register should be reverted.
Fixes: 1e4d58cd7f88 ("drm/bridge: adv7533: Create a MIPI DSI device") Signed-off-by: Jiasheng Jiang jiasheng@iscas.ac.cn Reviewed-by: Laurent Pinchart laurent.pinchart@ideasonboard.com Signed-off-by: Sam Ravnborg sam@ravnborg.org Link: https://patchwork.freedesktop.org/patch/msgid/20220602103401.2980938-1-jiash... Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/bridge/adv7511/adv7511_drv.c | 17 ++++++++++++++--- 1 file changed, 14 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c b/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c index b6e7cc9082ca..31b75d3ca6e9 100644 --- a/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c +++ b/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c @@ -1301,10 +1301,21 @@ static struct i2c_driver adv7511_driver = {
static int __init adv7511_init(void) { - if (IS_ENABLED(CONFIG_DRM_MIPI_DSI)) - mipi_dsi_driver_register(&adv7533_dsi_driver); + int ret; + + if (IS_ENABLED(CONFIG_DRM_MIPI_DSI)) { + ret = mipi_dsi_driver_register(&adv7533_dsi_driver); + if (ret) + return ret; + }
- return i2c_add_driver(&adv7511_driver); + ret = i2c_add_driver(&adv7511_driver); + if (ret) { + if (IS_ENABLED(CONFIG_DRM_MIPI_DSI)) + mipi_dsi_driver_unregister(&adv7533_dsi_driver); + } + + return ret; } module_init(adv7511_init);
From: Niels Dossche dossche.niels@gmail.com
[ Upstream commit 359c27c6ddbde404f44a9c0d3ec88ccd1e2042f2 ]
Error return values are supposed to be negative in hdpvr_read. Most error returns are currently handled via an unsigned integer "ret". When setting a negative error value to "ret", the value actually becomes a large positive value, because "ret" is unsigned. Later on, the "ret" value is returned. But as ssize_t is a 64-bit signed number, the error return value stays a large positive integer instead of a negative integer. This can cause an error value to be interpreted as the read size, which can cause a buffer overread for applications relying on the returned size.
Fixes: 9aba42efe85b ("V4L/DVB (11096): V4L2 Driver for the Hauppauge HD PVR usb capture device") Signed-off-by: Niels Dossche dossche.niels@gmail.com Signed-off-by: Hans Verkuil hverkuil-cisco@xs4all.nl Signed-off-by: Mauro Carvalho Chehab mchehab@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/media/usb/hdpvr/hdpvr-video.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/media/usb/hdpvr/hdpvr-video.c b/drivers/media/usb/hdpvr/hdpvr-video.c index ce46f8721470..1fb2cdd9c4b2 100644 --- a/drivers/media/usb/hdpvr/hdpvr-video.c +++ b/drivers/media/usb/hdpvr/hdpvr-video.c @@ -413,7 +413,7 @@ static ssize_t hdpvr_read(struct file *file, char __user *buffer, size_t count, struct hdpvr_device *dev = video_drvdata(file); struct hdpvr_buffer *buf = NULL; struct urb *urb; - unsigned int ret = 0; + int ret = 0; int rem, cnt;
if (*pos)
From: Dave Stevenson dave.stevenson@raspberrypi.com
[ Upstream commit 3b45eee87da171caa28f61240ddb5c21170cda53 ]
The divider calculations tried to find the divider just faster than the clock requested. However if it required a divider of 7 then the for loop aborted without handling the "error" case, and could end up with a clock lower than requested.
The integer divider from parent PLL to DSI clock is also capable of going up to /255, not just /7 that the driver was trying. This allows for slower link frequencies on the DSI bus where the resolution permits.
Correct the loop so that we always have a clock greater than requested, and covering the whole range of dividers.
Fixes: 86c1b9eff3f2 ("drm/vc4: Adjust modes in DSI to work around the integer PLL divider.") Signed-off-by: Dave Stevenson dave.stevenson@raspberrypi.com Link: https://lore.kernel.org/r/20220613144800.326124-13-maxime@cerno.tech Signed-off-by: Maxime Ripard maxime@cerno.tech Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/vc4/vc4_dsi.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/vc4/vc4_dsi.c b/drivers/gpu/drm/vc4/vc4_dsi.c index 0c607eb33d7e..77003ce666a4 100644 --- a/drivers/gpu/drm/vc4/vc4_dsi.c +++ b/drivers/gpu/drm/vc4/vc4_dsi.c @@ -853,11 +853,9 @@ static bool vc4_dsi_encoder_mode_fixup(struct drm_encoder *encoder, /* Find what divider gets us a faster clock than the requested * pixel clock. */ - for (divider = 1; divider < 8; divider++) { - if (parent_rate / divider < pll_clock) { - divider--; + for (divider = 1; divider < 255; divider++) { + if (parent_rate / (divider + 1) < pll_clock) break; - } }
/* Now that we've picked a PLL divider, calculate back to its
From: Brian Norris briannorris@chromium.org
[ Upstream commit 1449110b0dade8b638d2c17ab7c5b0ff696bfccb ]
It's possible for users to try to duplicate the CRTC state even when the state doesn't exist. drm_atomic_helper_crtc_duplicate_state() (and other users of __drm_atomic_helper_crtc_duplicate_state()) already guard this with a WARN_ON() instead of crashing, so let's do that here too.
Fixes: 4e257d9eee23 ("drm/rockchip: get rid of rockchip_drm_crtc_mode_config") Signed-off-by: Brian Norris briannorris@chromium.org Reviewed-by: Sean Paul seanpaul@chromium.org Reviewed-by: Douglas Anderson dianders@chromium.org Signed-off-by: Heiko Stuebner heiko@sntech.de Link: https://patchwork.freedesktop.org/patch/msgid/20220617172623.1.I62db228170b1... Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/rockchip/rockchip_drm_vop.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c index c0b647435974..69eb0de9973f 100644 --- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c +++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c @@ -1088,6 +1088,9 @@ static struct drm_crtc_state *vop_crtc_duplicate_state(struct drm_crtc *crtc) { struct rockchip_crtc_state *rockchip_state;
+ if (WARN_ON(!crtc->state)) + return NULL; + rockchip_state = kzalloc(sizeof(*rockchip_state), GFP_KERNEL); if (!rockchip_state) return NULL;
From: Bo-Chen Chen rex-bc.chen@mediatek.com
[ Upstream commit c9ed0713b3c35fc45677707ba47f432cad95da56 ]
DPI is not support output format as YUV, but there is the setting of configuring output YUV. Therefore, remove them in this patch.
Fixes: 9e629c17aa8d ("drm/mediatek: Add DPI sub driver") Signed-off-by: Bo-Chen Chen rex-bc.chen@mediatek.com Link: https://patchwork.kernel.org/project/linux-mediatek/patch/20220701035845.164... Signed-off-by: Chun-Kuang Hu chunkuang.hu@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/mediatek/mtk_dpi.c | 31 ++++++------------------------ 1 file changed, 6 insertions(+), 25 deletions(-)
diff --git a/drivers/gpu/drm/mediatek/mtk_dpi.c b/drivers/gpu/drm/mediatek/mtk_dpi.c index 6c0ea39d5739..a263ac4aaab2 100644 --- a/drivers/gpu/drm/mediatek/mtk_dpi.c +++ b/drivers/gpu/drm/mediatek/mtk_dpi.c @@ -52,13 +52,7 @@ enum mtk_dpi_out_channel_swap { };
enum mtk_dpi_out_color_format { - MTK_DPI_COLOR_FORMAT_RGB, - MTK_DPI_COLOR_FORMAT_RGB_FULL, - MTK_DPI_COLOR_FORMAT_YCBCR_444, - MTK_DPI_COLOR_FORMAT_YCBCR_422, - MTK_DPI_COLOR_FORMAT_XV_YCC, - MTK_DPI_COLOR_FORMAT_YCBCR_444_FULL, - MTK_DPI_COLOR_FORMAT_YCBCR_422_FULL + MTK_DPI_COLOR_FORMAT_RGB };
struct mtk_dpi { @@ -347,24 +341,11 @@ static void mtk_dpi_config_2n_h_fre(struct mtk_dpi *dpi) static void mtk_dpi_config_color_format(struct mtk_dpi *dpi, enum mtk_dpi_out_color_format format) { - if ((format == MTK_DPI_COLOR_FORMAT_YCBCR_444) || - (format == MTK_DPI_COLOR_FORMAT_YCBCR_444_FULL)) { - mtk_dpi_config_yuv422_enable(dpi, false); - mtk_dpi_config_csc_enable(dpi, true); - mtk_dpi_config_swap_input(dpi, false); - mtk_dpi_config_channel_swap(dpi, MTK_DPI_OUT_CHANNEL_SWAP_BGR); - } else if ((format == MTK_DPI_COLOR_FORMAT_YCBCR_422) || - (format == MTK_DPI_COLOR_FORMAT_YCBCR_422_FULL)) { - mtk_dpi_config_yuv422_enable(dpi, true); - mtk_dpi_config_csc_enable(dpi, true); - mtk_dpi_config_swap_input(dpi, true); - mtk_dpi_config_channel_swap(dpi, MTK_DPI_OUT_CHANNEL_SWAP_RGB); - } else { - mtk_dpi_config_yuv422_enable(dpi, false); - mtk_dpi_config_csc_enable(dpi, false); - mtk_dpi_config_swap_input(dpi, false); - mtk_dpi_config_channel_swap(dpi, MTK_DPI_OUT_CHANNEL_SWAP_RGB); - } + /* only support RGB888 */ + mtk_dpi_config_yuv422_enable(dpi, false); + mtk_dpi_config_csc_enable(dpi, false); + mtk_dpi_config_swap_input(dpi, false); + mtk_dpi_config_channel_swap(dpi, MTK_DPI_OUT_CHANNEL_SWAP_RGB); }
static void mtk_dpi_power_off(struct mtk_dpi *dpi, enum mtk_dpi_power_ctl pctl)
From: Hangyu Hua hbh25y@gmail.com
[ Upstream commit 21779cc21c732c5eff8ea1624be6590450baa30f ]
The next call to sii8620_burst_get_tx_buf will result in off-by-one When ctx->burst.tx_count + size == ARRAY_SIZE(ctx->burst.tx_buf). The same thing happens in sii8620_burst_get_rx_buf.
This patch also change tx_count and tx_buf to rx_count and rx_buf in sii8620_burst_get_rx_buf. It is unreasonable to check tx_buf's size and use rx_buf.
Fixes: e19e9c692f81 ("drm/bridge/sii8620: add support for burst eMSC transmissions") Signed-off-by: Hangyu Hua hbh25y@gmail.com Reviewed-by: Andrzej Hajda andrzej.hajda@intel.com Signed-off-by: Robert Foss robert.foss@linaro.org Link: https://patchwork.freedesktop.org/patch/msgid/20220518065856.18936-1-hbh25y@... Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/bridge/sil-sii8620.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/bridge/sil-sii8620.c b/drivers/gpu/drm/bridge/sil-sii8620.c index ea433bb189ca..c72092319a53 100644 --- a/drivers/gpu/drm/bridge/sil-sii8620.c +++ b/drivers/gpu/drm/bridge/sil-sii8620.c @@ -607,7 +607,7 @@ static void *sii8620_burst_get_tx_buf(struct sii8620 *ctx, int len) u8 *buf = &ctx->burst.tx_buf[ctx->burst.tx_count]; int size = len + 2;
- if (ctx->burst.tx_count + size > ARRAY_SIZE(ctx->burst.tx_buf)) { + if (ctx->burst.tx_count + size >= ARRAY_SIZE(ctx->burst.tx_buf)) { dev_err(ctx->dev, "TX-BLK buffer exhausted\n"); ctx->error = -EINVAL; return NULL; @@ -624,7 +624,7 @@ static u8 *sii8620_burst_get_rx_buf(struct sii8620 *ctx, int len) u8 *buf = &ctx->burst.rx_buf[ctx->burst.rx_count]; int size = len + 1;
- if (ctx->burst.tx_count + size > ARRAY_SIZE(ctx->burst.tx_buf)) { + if (ctx->burst.rx_count + size >= ARRAY_SIZE(ctx->burst.rx_buf)) { dev_err(ctx->dev, "RX-BLK buffer exhausted\n"); ctx->error = -EINVAL; return NULL;
From: Rob Clark robdclark@chromium.org
[ Upstream commit 92ef86ab513593c6329d04146e61f9a670e72fc5 ]
We need to grab the lock after the early return for !hwpipe case. Otherwise, we could have hit contention yet still returned 0.
Fixes an issue that the new CONFIG_DRM_DEBUG_MODESET_LOCK stuff flagged in CI:
WARNING: CPU: 0 PID: 282 at drivers/gpu/drm/drm_modeset_lock.c:296 drm_modeset_lock+0xf8/0x154 Modules linked in: CPU: 0 PID: 282 Comm: kms_cursor_lega Tainted: G W 5.19.0-rc2-15930-g875cc8bc536a #1 Hardware name: Qualcomm Technologies, Inc. DB820c (DT) pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : drm_modeset_lock+0xf8/0x154 lr : drm_atomic_get_private_obj_state+0x84/0x170 sp : ffff80000cfab6a0 x29: ffff80000cfab6a0 x28: 0000000000000000 x27: ffff000083bc4d00 x26: 0000000000000038 x25: 0000000000000000 x24: ffff80000957ca58 x23: 0000000000000000 x22: ffff000081ace080 x21: 0000000000000001 x20: ffff000081acec18 x19: ffff80000cfabb80 x18: 0000000000000038 x17: 0000000000000000 x16: 0000000000000000 x15: fffffffffffea0d0 x14: 0000000000000000 x13: 284e4f5f4e524157 x12: 5f534b434f4c5f47 x11: ffff80000a386aa8 x10: 0000000000000029 x9 : ffff80000cfab610 x8 : 0000000000000029 x7 : 0000000000000014 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000081ad904 x3 : 0000000000000029 x2 : ffff0000801db4c0 x1 : ffff80000cfabb80 x0 : ffff000081aceb58 Call trace: drm_modeset_lock+0xf8/0x154 drm_atomic_get_private_obj_state+0x84/0x170 mdp5_get_global_state+0x54/0x6c mdp5_pipe_release+0x2c/0xd4 mdp5_plane_atomic_check+0x2ec/0x414 drm_atomic_helper_check_planes+0xd8/0x210 drm_atomic_helper_check+0x54/0xb0 ... ---[ end trace 0000000000000000 ]--- drm_modeset_lock attempting to lock a contended lock without backoff: drm_modeset_lock+0x148/0x154 mdp5_get_global_state+0x30/0x6c mdp5_pipe_release+0x2c/0xd4 mdp5_plane_atomic_check+0x290/0x414 drm_atomic_helper_check_planes+0xd8/0x210 drm_atomic_helper_check+0x54/0xb0 drm_atomic_check_only+0x4b0/0x8f4 drm_atomic_commit+0x68/0xe0
Fixes: d59be579fa93 ("drm/msm/mdp5: Return error code in mdp5_pipe_release when deadlock is detected") Signed-off-by: Rob Clark robdclark@chromium.org Reviewed-by: Abhinav Kumar quic_abhinavk@quicinc.com Patchwork: https://patchwork.freedesktop.org/patch/492701/ Link: https://lore.kernel.org/r/20220707162040.1594855-1-robdclark@gmail.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/msm/disp/mdp5/mdp5_pipe.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/msm/disp/mdp5/mdp5_pipe.c b/drivers/gpu/drm/msm/disp/mdp5/mdp5_pipe.c index 88de12225582..69fe09b41087 100644 --- a/drivers/gpu/drm/msm/disp/mdp5/mdp5_pipe.c +++ b/drivers/gpu/drm/msm/disp/mdp5/mdp5_pipe.c @@ -134,12 +134,13 @@ int mdp5_pipe_release(struct drm_atomic_state *s, struct mdp5_hw_pipe *hwpipe) { struct msm_drm_private *priv = s->dev->dev_private; struct mdp5_kms *mdp5_kms = to_mdp5_kms(to_mdp_kms(priv->kms)); - struct mdp5_global_state *state = mdp5_get_global_state(s); + struct mdp5_global_state *state; struct mdp5_hw_pipe_state *new_state;
if (!hwpipe) return 0;
+ state = mdp5_get_global_state(s); if (IS_ERR(state)) return PTR_ERR(state);
From: Zhengchao Shao shaozhengchao@huawei.com
[ Upstream commit 68740ab505431f268dc1ee26a54b871e75f0ddaa ]
When kunpeng916 encryption driver is used to deencrypt and decrypt packets during the softirq, it is not allowed to use mutex lock.
Fixes: 915e4e8413da ("crypto: hisilicon - SEC security accelerator driver") Signed-off-by: Zhengchao Shao shaozhengchao@huawei.com Signed-off-by: Herbert Xu herbert@gondor.apana.org.au Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/crypto/hisilicon/sec/sec_algs.c | 14 +++++++------- drivers/crypto/hisilicon/sec/sec_drv.h | 2 +- 2 files changed, 8 insertions(+), 8 deletions(-)
diff --git a/drivers/crypto/hisilicon/sec/sec_algs.c b/drivers/crypto/hisilicon/sec/sec_algs.c index 3e3cc28d5cfe..f672dc1ecfac 100644 --- a/drivers/crypto/hisilicon/sec/sec_algs.c +++ b/drivers/crypto/hisilicon/sec/sec_algs.c @@ -457,7 +457,7 @@ static void sec_skcipher_alg_callback(struct sec_bd_info *sec_resp, */ }
- mutex_lock(&ctx->queue->queuelock); + spin_lock_bh(&ctx->queue->queuelock); /* Put the IV in place for chained cases */ switch (ctx->cipher_alg) { case SEC_C_AES_CBC_128: @@ -517,7 +517,7 @@ static void sec_skcipher_alg_callback(struct sec_bd_info *sec_resp, list_del(&backlog_req->backlog_head); } } - mutex_unlock(&ctx->queue->queuelock); + spin_unlock_bh(&ctx->queue->queuelock);
mutex_lock(&sec_req->lock); list_del(&sec_req_el->head); @@ -806,7 +806,7 @@ static int sec_alg_skcipher_crypto(struct skcipher_request *skreq, */
/* Grab a big lock for a long time to avoid concurrency issues */ - mutex_lock(&queue->queuelock); + spin_lock_bh(&queue->queuelock);
/* * Can go on to queue if we have space in either: @@ -822,15 +822,15 @@ static int sec_alg_skcipher_crypto(struct skcipher_request *skreq, ret = -EBUSY; if ((skreq->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG)) { list_add_tail(&sec_req->backlog_head, &ctx->backlog); - mutex_unlock(&queue->queuelock); + spin_unlock_bh(&queue->queuelock); goto out; }
- mutex_unlock(&queue->queuelock); + spin_unlock_bh(&queue->queuelock); goto err_free_elements; } ret = sec_send_request(sec_req, queue); - mutex_unlock(&queue->queuelock); + spin_unlock_bh(&queue->queuelock); if (ret) goto err_free_elements;
@@ -889,7 +889,7 @@ static int sec_alg_skcipher_init(struct crypto_skcipher *tfm) if (IS_ERR(ctx->queue)) return PTR_ERR(ctx->queue);
- mutex_init(&ctx->queue->queuelock); + spin_lock_init(&ctx->queue->queuelock); ctx->queue->havesoftqueue = false;
return 0; diff --git a/drivers/crypto/hisilicon/sec/sec_drv.h b/drivers/crypto/hisilicon/sec/sec_drv.h index 2d2f186674ba..ddc5d6bd7574 100644 --- a/drivers/crypto/hisilicon/sec/sec_drv.h +++ b/drivers/crypto/hisilicon/sec/sec_drv.h @@ -347,7 +347,7 @@ struct sec_queue { DECLARE_BITMAP(unprocessed, SEC_QUEUE_LEN); DECLARE_KFIFO_PTR(softqueue, typeof(struct sec_request_el *)); bool havesoftqueue; - struct mutex queuelock; + spinlock_t queuelock; void *shadow[SEC_QUEUE_LEN]; };
From: AngeloGioacchino Del Regno angelogioacchino.delregno@collabora.com
[ Upstream commit ab14c99c035da7156a3b66fa171171295bc4b89a ]
The mdp_ipi_comm structure defines a command that is either PROCESS (start processing) or DEINIT (destroy instance); we are using this one to send PROCESS or DEINIT commands from Linux to an MDP instance through a VPU write but, while the first wants us to stay 4-bytes aligned, the VPU instead requires an 8-bytes data alignment.
Keeping in mind that these commands are executed immediately after sending them (hence not chained with others before the VPU/MDP "actually" start executing), it is fine to simply add a padding of 4 bytes to this structure: this keeps the same performance as before, as we're still stack-allocating it, while avoiding hackery inside of mtk-vpu to ensure alignment bringing a definitely bigger performance impact.
Fixes: c8eb2d7e8202 ("[media] media: Add Mediatek MDP Driver") Signed-off-by: AngeloGioacchino Del Regno angelogioacchino.delregno@collabora.com Reviewed-by: Houlong Wei houlong.wei@mediatek.com Reviewed-by: Irui Wang irui.wang@mediatek.com Signed-off-by: Hans Verkuil hverkuil-cisco@xs4all.nl Signed-off-by: Mauro Carvalho Chehab mchehab@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/media/platform/mtk-mdp/mtk_mdp_ipi.h | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/media/platform/mtk-mdp/mtk_mdp_ipi.h b/drivers/media/platform/mtk-mdp/mtk_mdp_ipi.h index 78e2cc0dead1..4f4a51dd48e1 100644 --- a/drivers/media/platform/mtk-mdp/mtk_mdp_ipi.h +++ b/drivers/media/platform/mtk-mdp/mtk_mdp_ipi.h @@ -48,12 +48,14 @@ struct mdp_ipi_init { * @ipi_id : IPI_MDP * @ap_inst : AP mtk_mdp_vpu address * @vpu_inst_addr : VPU MDP instance address + * @padding : Alignment padding */ struct mdp_ipi_comm { uint32_t msg_id; uint32_t ipi_id; uint64_t ap_inst; uint32_t vpu_inst_addr; + uint32_t padding; };
/**
From: Liang He windhl@126.com
[ Upstream commit 0a14c1d0113f121151edf34333cdf212dd209190 ]
We should use of_node_put() for the reference 'np' returned by of_get_child_by_name() which will increase the refcount.
Fixes: 17f1de56df05 ("mt76: add common code shared between multiple chipsets") Signed-off-by: Liang He windhl@126.com Signed-off-by: Felix Fietkau nbd@nbd.name Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/wireless/mediatek/mt76/mac80211.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/net/wireless/mediatek/mt76/mac80211.c b/drivers/net/wireless/mediatek/mt76/mac80211.c index 1b5abd4816ed..203b888f38d8 100644 --- a/drivers/net/wireless/mediatek/mt76/mac80211.c +++ b/drivers/net/wireless/mediatek/mt76/mac80211.c @@ -114,6 +114,7 @@ static int mt76_led_init(struct mt76_dev *dev) if (!of_property_read_u32(np, "led-sources", &led_pin)) dev->led_pin = led_pin; dev->led_al = of_property_read_bool(np, "led-active-low"); + of_node_put(np); }
return devm_led_classdev_register(dev->dev, &dev->led_cdev);
From: Yonglong Li liyonglong@chinatelecom.cn
[ Upstream commit 536a6c8e05f95e3d1118c40ae8b3022ee2d05d52 ]
current code of __tcp_retransmit_skb only check TCP_SKB_CB(skb)->seq in send window, and TCP_SKB_CB(skb)->seq_end maybe out of send window. If receiver has shrunk his window, and skb is out of new window, it should retransmit a smaller portion of the payload.
test packetdrill script: 0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3 +0 fcntl(3, F_GETFL) = 0x2 (flags O_RDWR) +0 fcntl(3, F_SETFL, O_RDWR|O_NONBLOCK) = 0
+0 connect(3, ..., ...) = -1 EINPROGRESS (Operation now in progress) +0 > S 0:0(0) win 65535 <mss 1460,sackOK,TS val 100 ecr 0,nop,wscale 8> +.05 < S. 0:0(0) ack 1 win 6000 <mss 1000,nop,nop,sackOK> +0 > . 1:1(0) ack 1
+0 write(3, ..., 10000) = 10000
+0 > . 1:2001(2000) ack 1 win 65535 +0 > . 2001:4001(2000) ack 1 win 65535 +0 > . 4001:6001(2000) ack 1 win 65535
+.05 < . 1:1(0) ack 4001 win 1001
and tcpdump show: 192.168.226.67.55 > 192.0.2.1.8080: Flags [.], seq 1:2001, ack 1, win 65535, length 2000 192.168.226.67.55 > 192.0.2.1.8080: Flags [.], seq 2001:4001, ack 1, win 65535, length 2000 192.168.226.67.55 > 192.0.2.1.8080: Flags [P.], seq 4001:5001, ack 1, win 65535, length 1000 192.168.226.67.55 > 192.0.2.1.8080: Flags [.], seq 5001:6001, ack 1, win 65535, length 1000 192.0.2.1.8080 > 192.168.226.67.55: Flags [.], ack 4001, win 1001, length 0 192.168.226.67.55 > 192.0.2.1.8080: Flags [.], seq 5001:6001, ack 1, win 65535, length 1000 192.168.226.67.55 > 192.0.2.1.8080: Flags [P.], seq 4001:5001, ack 1, win 65535, length 1000
when cient retract window to 1001, send window is [4001,5002], but TLP send 5001-6001 packet which is out of send window.
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Signed-off-by: Yonglong Li liyonglong@chinatelecom.cn Signed-off-by: Eric Dumazet edumazet@google.com Link: https://lore.kernel.org/r/1657532838-20200-1-git-send-email-liyonglong@china... Signed-off-by: Jakub Kicinski kuba@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- net/ipv4/tcp_output.c | 23 ++++++++++++++++------- 1 file changed, 16 insertions(+), 7 deletions(-)
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c index 3090b61e4edd..995306dc458a 100644 --- a/net/ipv4/tcp_output.c +++ b/net/ipv4/tcp_output.c @@ -2856,7 +2856,7 @@ int __tcp_retransmit_skb(struct sock *sk, struct sk_buff *skb, int segs) struct tcp_sock *tp = tcp_sk(sk); unsigned int cur_mss; int diff, len, err; - + int avail_wnd;
/* Inconclusive MTU probe */ if (icsk->icsk_mtup.probe_size) @@ -2886,17 +2886,25 @@ int __tcp_retransmit_skb(struct sock *sk, struct sk_buff *skb, int segs) return -EHOSTUNREACH; /* Routing failure or similar. */
cur_mss = tcp_current_mss(sk); + avail_wnd = tcp_wnd_end(tp) - TCP_SKB_CB(skb)->seq;
/* If receiver has shrunk his window, and skb is out of * new window, do not retransmit it. The exception is the * case, when window is shrunk to zero. In this case - * our retransmit serves as a zero window probe. + * our retransmit of one segment serves as a zero window probe. */ - if (!before(TCP_SKB_CB(skb)->seq, tcp_wnd_end(tp)) && - TCP_SKB_CB(skb)->seq != tp->snd_una) - return -EAGAIN; + if (avail_wnd <= 0) { + if (TCP_SKB_CB(skb)->seq != tp->snd_una) + return -EAGAIN; + avail_wnd = cur_mss; + }
len = cur_mss * segs; + if (len > avail_wnd) { + len = rounddown(avail_wnd, cur_mss); + if (!len) + len = avail_wnd; + } if (skb->len > len) { if (tcp_fragment(sk, TCP_FRAG_IN_RTX_QUEUE, skb, len, cur_mss, GFP_ATOMIC)) @@ -2910,8 +2918,9 @@ int __tcp_retransmit_skb(struct sock *sk, struct sk_buff *skb, int segs) diff -= tcp_skb_pcount(skb); if (diff) tcp_adjust_pcount(sk, skb, diff); - if (skb->len < cur_mss) - tcp_retrans_try_collapse(sk, skb, cur_mss); + avail_wnd = min_t(int, avail_wnd, cur_mss); + if (skb->len < avail_wnd) + tcp_retrans_try_collapse(sk, skb, avail_wnd); }
/* RFC3168, section 6.1.1.1. ECN fallback */
From: Anquan Wu leiqi96@hotmail.com
[ Upstream commit bf3f00378524adae16628cbadbd11ba7211863bb ]
BPF map name is limited to BPF_OBJ_NAME_LEN. A map name is defined as being longer than BPF_OBJ_NAME_LEN, it will be truncated to BPF_OBJ_NAME_LEN when a userspace program calls libbpf to create the map. A pinned map also generates a path in the /sys. If the previous program wanted to reuse the map, it can not get bpf_map by name, because the name of the map is only partially the same as the name which get from pinned path.
The syscall information below show that map name "process_pinned_map" is truncated to "process_pinned_".
bpf(BPF_OBJ_GET, {pathname="/sys/fs/bpf/process_pinned_map", bpf_fd=0, file_flags=0}, 144) = -1 ENOENT (No such file or directory)
bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_HASH, key_size=4, value_size=4,max_entries=1024, map_flags=0, inner_map_fd=0, map_name="process_pinned_",map_ifindex=0, btf_fd=3, btf_key_type_id=6, btf_value_type_id=10,btf_vmlinux_value_type_id=0}, 72) = 4
This patch check that if the name of pinned map are the same as the actual name for the first (BPF_OBJ_NAME_LEN - 1), bpf map still uses the name which is included in bpf object.
Fixes: 26736eb9a483 ("tools: libbpf: allow map reuse") Signed-off-by: Anquan Wu leiqi96@hotmail.com Signed-off-by: Andrii Nakryiko andrii@kernel.org Link: https://lore.kernel.org/bpf/OSZP286MB1725CEA1C95C5CB8E7CCC53FB8869@OSZP286MB... Signed-off-by: Sasha Levin sashal@kernel.org --- tools/lib/bpf/libbpf.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c index 249fa8d7376e..76cf63705c86 100644 --- a/tools/lib/bpf/libbpf.c +++ b/tools/lib/bpf/libbpf.c @@ -1060,7 +1060,7 @@ static int bpf_map_find_btf_info(struct bpf_map *map, const struct btf *btf) int bpf_map__reuse_fd(struct bpf_map *map, int fd) { struct bpf_map_info info = {}; - __u32 len = sizeof(info); + __u32 len = sizeof(info), name_len; int new_fd, err; char *new_name;
@@ -1068,7 +1068,12 @@ int bpf_map__reuse_fd(struct bpf_map *map, int fd) if (err) return err;
- new_name = strdup(info.name); + name_len = strlen(info.name); + if (name_len == BPF_OBJ_NAME_LEN - 1 && strncmp(map->name, info.name, name_len) == 0) + new_name = strdup(map->name); + else + new_name = strdup(info.name); + if (!new_name) return -errno;
From: Wolfram Sang wsa+renesas@sang-engineering.com
[ Upstream commit 9a162977d20436be5678a8e21a8e58eb4616d86a ]
Toolchains with an include file 'sys/timex.h' based on 3.18 will have a 'clock_adjtime' definition added, so it can't be static in the code:
valid-adjtimex.c:43:12: error: static declaration of ‘clock_adjtime’ follows non-static declaration
Fixes: e03a58c320e1 ("kselftests: timers: Add adjtimex SETOFFSET validity tests") Signed-off-by: Wolfram Sang wsa+renesas@sang-engineering.com Acked-by: John Stultz jstultz@google.com Signed-off-by: Shuah Khan skhan@linuxfoundation.org Signed-off-by: Sasha Levin sashal@kernel.org --- tools/testing/selftests/timers/valid-adjtimex.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/testing/selftests/timers/valid-adjtimex.c b/tools/testing/selftests/timers/valid-adjtimex.c index 5397de708d3c..48b9a803235a 100644 --- a/tools/testing/selftests/timers/valid-adjtimex.c +++ b/tools/testing/selftests/timers/valid-adjtimex.c @@ -40,7 +40,7 @@ #define ADJ_SETOFFSET 0x0100
#include <sys/syscall.h> -static int clock_adjtime(clockid_t id, struct timex *tx) +int clock_adjtime(clockid_t id, struct timex *tx) { return syscall(__NR_clock_adjtime, id, tx); }
From: Wolfram Sang wsa+renesas@sang-engineering.com
[ Upstream commit 4d8f52ac5fa9eede7b7aa2f2d67c841d9eeb655f ]
The return value from system() is a waitpid-style integer. Do not return it directly because with the implicit masking in exit() it will always return 0. Access it with appropriate macros to really pass on errors.
Fixes: 7290ce1423c3 ("selftests/timers: Add clocksource-switch test from timetest suite") Signed-off-by: Wolfram Sang wsa+renesas@sang-engineering.com Acked-by: John Stultz jstultz@google.com Signed-off-by: Shuah Khan skhan@linuxfoundation.org Signed-off-by: Sasha Levin sashal@kernel.org --- tools/testing/selftests/timers/clocksource-switch.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/tools/testing/selftests/timers/clocksource-switch.c b/tools/testing/selftests/timers/clocksource-switch.c index bfc974b4572d..c18313a5f357 100644 --- a/tools/testing/selftests/timers/clocksource-switch.c +++ b/tools/testing/selftests/timers/clocksource-switch.c @@ -110,10 +110,10 @@ int run_tests(int secs)
sprintf(buf, "./inconsistency-check -t %i", secs); ret = system(buf); - if (ret) - return ret; + if (WIFEXITED(ret) && WEXITSTATUS(ret)) + return WEXITSTATUS(ret); ret = system("./nanosleep"); - return ret; + return WIFEXITED(ret) ? WEXITSTATUS(ret) : 0; }
From: Jason A. Donenfeld Jason@zx2c4.com
[ Upstream commit 97ef77c52b789ec1411d360ed99dca1efe4b2c81 ]
The original direct splicing mechanism from Jens required the input to be a regular file because it was avoiding the special socket case. It also recognized blkdevs as being close enough to a regular file. But it forgot about chardevs, which behave the same way and work fine here.
This is an okayish heuristic, but it doesn't totally work. For example, a few chardevs should be spliceable here. And a few regular files shouldn't. This patch fixes this by instead checking whether FMODE_LSEEK is set, which represents decently enough what we need rewinding for when splicing to internal pipes.
Fixes: b92ce5589374 ("[PATCH] splice: add direct fd <-> fd splicing support") Cc: Jens Axboe axboe@kernel.dk Signed-off-by: Jason A. Donenfeld Jason@zx2c4.com Signed-off-by: Al Viro viro@zeniv.linux.org.uk Signed-off-by: Sasha Levin sashal@kernel.org --- fs/splice.c | 10 ++++------ 1 file changed, 4 insertions(+), 6 deletions(-)
diff --git a/fs/splice.c b/fs/splice.c index fd28c7da3c83..ef1604e307f1 100644 --- a/fs/splice.c +++ b/fs/splice.c @@ -899,17 +899,15 @@ ssize_t splice_direct_to_actor(struct file *in, struct splice_desc *sd, { struct pipe_inode_info *pipe; long ret, bytes; - umode_t i_mode; size_t len; int i, flags, more;
/* - * We require the input being a regular file, as we don't want to - * randomly drop data for eg socket -> socket splicing. Use the - * piped splicing for that! + * We require the input to be seekable, as we don't want to randomly + * drop data for eg socket -> socket splicing. Use the piped splicing + * for that! */ - i_mode = file_inode(in)->i_mode; - if (unlikely(!S_ISREG(i_mode) && !S_ISBLK(i_mode))) + if (unlikely(!(in->f_mode & FMODE_LSEEK))) return -EINVAL;
/*
From: Dan Carpenter dan.carpenter@oracle.com
[ Upstream commit 7a4836560a6198d245d5732e26f94898b12eb760 ]
The simple_write_to_buffer() function will succeed if even a single byte is initialized. However, we need to initialize the whole buffer to prevent information leaks. Just use memdup_user().
Fixes: ff974e408334 ("wil6210: debugfs interface to send raw WMI command") Signed-off-by: Dan Carpenter dan.carpenter@oracle.com Signed-off-by: Kalle Valo quic_kvalo@quicinc.com Link: https://lore.kernel.org/r/Ysg14NdKAZF/hcNG@kili Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/wireless/ath/wil6210/debugfs.c | 14 ++++---------- 1 file changed, 4 insertions(+), 10 deletions(-)
diff --git a/drivers/net/wireless/ath/wil6210/debugfs.c b/drivers/net/wireless/ath/wil6210/debugfs.c index 55a809cb3105..675b2829b4c7 100644 --- a/drivers/net/wireless/ath/wil6210/debugfs.c +++ b/drivers/net/wireless/ath/wil6210/debugfs.c @@ -1004,18 +1004,12 @@ static ssize_t wil_write_file_wmi(struct file *file, const char __user *buf, u16 cmdid; int rc, rc1;
- if (cmdlen < 0) + if (cmdlen < 0 || *ppos != 0) return -EINVAL;
- wmi = kmalloc(len, GFP_KERNEL); - if (!wmi) - return -ENOMEM; - - rc = simple_write_to_buffer(wmi, len, ppos, buf, len); - if (rc < 0) { - kfree(wmi); - return rc; - } + wmi = memdup_user(buf, len); + if (IS_ERR(wmi)) + return PTR_ERR(wmi);
cmd = (cmdlen > 0) ? &wmi[1] : NULL; cmdid = le16_to_cpu(wmi->command_id);
From: Christophe JAILLET christophe.jaillet@wanadoo.fr
[ Upstream commit 83781f0162d080fec7dcb911afd1bc2f5ad04471 ]
If an error occurs after a successful call to p54spi_request_firmware(), it must be undone by a corresponding release_firmware() as already done in the error handling path of p54spi_request_firmware() and in the .remove() function.
Add the missing call in the error handling path and remove it from p54spi_request_firmware() now that it is the responsibility of the caller to release the firmware
Fixes: cd8d3d321285 ("p54spi: p54spi driver") Signed-off-by: Christophe JAILLET christophe.jaillet@wanadoo.fr Acked-by: Christian Lamparter chunkeey@gmail.com Signed-off-by: Kalle Valo kvalo@kernel.org Link: https://lore.kernel.org/r/297d2547ff2ee627731662abceeab9dbdaf23231.165506832... Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/wireless/intersil/p54/p54spi.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/net/wireless/intersil/p54/p54spi.c b/drivers/net/wireless/intersil/p54/p54spi.c index e41bf042352e..3dcfad5b61ff 100644 --- a/drivers/net/wireless/intersil/p54/p54spi.c +++ b/drivers/net/wireless/intersil/p54/p54spi.c @@ -177,7 +177,7 @@ static int p54spi_request_firmware(struct ieee80211_hw *dev)
ret = p54_parse_firmware(dev, priv->firmware); if (ret) { - release_firmware(priv->firmware); + /* the firmware is released by the caller */ return ret; }
@@ -672,6 +672,7 @@ static int p54spi_probe(struct spi_device *spi) return 0;
err_free_common: + release_firmware(priv->firmware); free_irq(gpio_to_irq(p54spi_gpio_irq), spi); err_free_gpio_irq: gpio_free(p54spi_gpio_irq);
From: Rustam Subkhankulov subkhankulov@ispras.ru
[ Upstream commit bcfd9d7f6840b06d5988c7141127795cf405805e ]
The assignment of the value to the variable total in the loop condition must be enclosed in additional parentheses, since otherwise, in accordance with the precedence of the operators, the conjunction will be performed first, and only then the assignment.
Due to this error, a warning later in the function after the loop may not occur in the situation when it should.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
Signed-off-by: Rustam Subkhankulov subkhankulov@ispras.ru Fixes: 0d4171e2153b ("p54: implement flush callback") Acked-by: Christian Lamparter chunkeey@gmail.com Signed-off-by: Kalle Valo kvalo@kernel.org Link: https://lore.kernel.org/r/20220714134831.106004-1-subkhankulov@ispras.ru Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/wireless/intersil/p54/main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/wireless/intersil/p54/main.c b/drivers/net/wireless/intersil/p54/main.c index 1c6d428515a4..b15a1b99f28f 100644 --- a/drivers/net/wireless/intersil/p54/main.c +++ b/drivers/net/wireless/intersil/p54/main.c @@ -688,7 +688,7 @@ static void p54_flush(struct ieee80211_hw *dev, struct ieee80211_vif *vif, * queues have already been stopped and no new frames can sneak * up from behind. */ - while ((total = p54_flush_count(priv) && i--)) { + while ((total = p54_flush_count(priv)) && i--) { /* waste time */ msleep(20); }
From: Vincent Mailhol mailhol.vincent@wanadoo.fr
[ Upstream commit 3a5c7e4611ddcf0ef37a3a17296b964d986161a6 ]
During bus off, the error count is greater than 255 and can not fit in a u8.
Fixes: 0c78ab76a05c ("pch_can: Add setting TEC/REC statistics processing") Link: https://lore.kernel.org/all/20220719143550.3681-2-mailhol.vincent@wanadoo.fr Signed-off-by: Vincent Mailhol mailhol.vincent@wanadoo.fr Signed-off-by: Marc Kleine-Budde mkl@pengutronix.de Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/can/pch_can.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/net/can/pch_can.c b/drivers/net/can/pch_can.c index ced11ea89269..3e1d71c70b0d 100644 --- a/drivers/net/can/pch_can.c +++ b/drivers/net/can/pch_can.c @@ -507,6 +507,9 @@ static void pch_can_error(struct net_device *ndev, u32 status) cf->can_id |= CAN_ERR_BUSOFF; priv->can.can_stats.bus_off++; can_bus_off(ndev); + } else { + cf->data[6] = errc & PCH_TEC; + cf->data[7] = (errc & PCH_REC) >> 8; }
errc = ioread32(&priv->regs->errc); @@ -567,9 +570,6 @@ static void pch_can_error(struct net_device *ndev, u32 status) break; }
- cf->data[6] = errc & PCH_TEC; - cf->data[7] = (errc & PCH_REC) >> 8; - priv->can.state = state; netif_receive_skb(skb);
From: Vincent Mailhol mailhol.vincent@wanadoo.fr
[ Upstream commit a37b7245e831a641df360ca41db6a71c023d3746 ]
During bus off, the error count is greater than 255 and can not fit in a u8.
Fixes: fd1159318e55 ("can: add Renesas R-Car CAN driver") Link: https://lore.kernel.org/all/20220719143550.3681-3-mailhol.vincent@wanadoo.fr Signed-off-by: Vincent Mailhol mailhol.vincent@wanadoo.fr Signed-off-by: Marc Kleine-Budde mkl@pengutronix.de Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/can/rcar/rcar_can.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/net/can/rcar/rcar_can.c b/drivers/net/can/rcar/rcar_can.c index 963da8eda168..0156c18d5a2d 100644 --- a/drivers/net/can/rcar/rcar_can.c +++ b/drivers/net/can/rcar/rcar_can.c @@ -233,11 +233,8 @@ static void rcar_can_error(struct net_device *ndev) if (eifr & (RCAR_CAN_EIFR_EWIF | RCAR_CAN_EIFR_EPIF)) { txerr = readb(&priv->regs->tecr); rxerr = readb(&priv->regs->recr); - if (skb) { + if (skb) cf->can_id |= CAN_ERR_CRTL; - cf->data[6] = txerr; - cf->data[7] = rxerr; - } } if (eifr & RCAR_CAN_EIFR_BEIF) { int rx_errors = 0, tx_errors = 0; @@ -337,6 +334,9 @@ static void rcar_can_error(struct net_device *ndev) can_bus_off(ndev); if (skb) cf->can_id |= CAN_ERR_BUSOFF; + } else if (skb) { + cf->data[6] = txerr; + cf->data[7] = rxerr; } if (eifr & RCAR_CAN_EIFR_ORIF) { netdev_dbg(priv->ndev, "Receive overrun error interrupt\n");
From: Vincent Mailhol mailhol.vincent@wanadoo.fr
[ Upstream commit 164d7cb2d5a30f1b3a5ab4fab1a27731fb1494a8 ]
During bus off, the error count is greater than 255 and can not fit in a u8.
Fixes: 215db1856e83 ("can: sja1000: Consolidate and unify state change handling") Link: https://lore.kernel.org/all/20220719143550.3681-4-mailhol.vincent@wanadoo.fr Signed-off-by: Vincent Mailhol mailhol.vincent@wanadoo.fr Signed-off-by: Marc Kleine-Budde mkl@pengutronix.de Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/can/sja1000/sja1000.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/drivers/net/can/sja1000/sja1000.c b/drivers/net/can/sja1000/sja1000.c index 9f107798f904..e7327ceabb76 100644 --- a/drivers/net/can/sja1000/sja1000.c +++ b/drivers/net/can/sja1000/sja1000.c @@ -405,9 +405,6 @@ static int sja1000_err(struct net_device *dev, uint8_t isrc, uint8_t status) txerr = priv->read_reg(priv, SJA1000_TXERR); rxerr = priv->read_reg(priv, SJA1000_RXERR);
- cf->data[6] = txerr; - cf->data[7] = rxerr; - if (isrc & IRQ_DOI) { /* data overrun interrupt */ netdev_dbg(dev, "data overrun interrupt\n"); @@ -429,6 +426,10 @@ static int sja1000_err(struct net_device *dev, uint8_t isrc, uint8_t status) else state = CAN_STATE_ERROR_ACTIVE; } + if (state != CAN_STATE_BUS_OFF) { + cf->data[6] = txerr; + cf->data[7] = rxerr; + } if (isrc & IRQ_BEI) { /* bus error interrupt */ priv->can.can_stats.bus_error++;
From: Vincent Mailhol mailhol.vincent@wanadoo.fr
[ Upstream commit a22bd630cfff496b270211745536e50e98eb3a45 ]
During bus off, the error count is greater than 255 and can not fit in a u8.
Fixes: 57e83fb9b746 ("can: hi311x: Add Holt HI-311x CAN driver") Link: https://lore.kernel.org/all/20220719143550.3681-6-mailhol.vincent@wanadoo.fr Signed-off-by: Vincent Mailhol mailhol.vincent@wanadoo.fr Signed-off-by: Marc Kleine-Budde mkl@pengutronix.de Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/can/spi/hi311x.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/net/can/spi/hi311x.c b/drivers/net/can/spi/hi311x.c index 472175e37055..5f730f791c27 100644 --- a/drivers/net/can/spi/hi311x.c +++ b/drivers/net/can/spi/hi311x.c @@ -688,8 +688,6 @@ static irqreturn_t hi3110_can_ist(int irq, void *dev_id)
txerr = hi3110_read(spi, HI3110_READ_TEC); rxerr = hi3110_read(spi, HI3110_READ_REC); - cf->data[6] = txerr; - cf->data[7] = rxerr; tx_state = txerr >= rxerr ? new_state : 0; rx_state = txerr <= rxerr ? new_state : 0; can_change_state(net, cf, tx_state, rx_state); @@ -702,6 +700,9 @@ static irqreturn_t hi3110_can_ist(int irq, void *dev_id) hi3110_hw_sleep(spi); break; } + } else { + cf->data[6] = txerr; + cf->data[7] = rxerr; } }
From: Vincent Mailhol mailhol.vincent@wanadoo.fr
[ Upstream commit 0ac15a8f661b941519379831d09bfb12271b23ee ]
During bus off, the error count is greater than 255 and can not fit in a u8.
Fixes: 0738eff14d81 ("can: Allwinner A10/A20 CAN Controller support - Kernel module") Link: https://lore.kernel.org/all/20220719143550.3681-7-mailhol.vincent@wanadoo.fr CC: Chen-Yu Tsai wens@csie.org Signed-off-by: Vincent Mailhol mailhol.vincent@wanadoo.fr Signed-off-by: Marc Kleine-Budde mkl@pengutronix.de Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/can/sun4i_can.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-)
diff --git a/drivers/net/can/sun4i_can.c b/drivers/net/can/sun4i_can.c index 093fc9a529f0..bebdd133d9ed 100644 --- a/drivers/net/can/sun4i_can.c +++ b/drivers/net/can/sun4i_can.c @@ -525,11 +525,6 @@ static int sun4i_can_err(struct net_device *dev, u8 isrc, u8 status) rxerr = (errc >> 16) & 0xFF; txerr = errc & 0xFF;
- if (skb) { - cf->data[6] = txerr; - cf->data[7] = rxerr; - } - if (isrc & SUN4I_INT_DATA_OR) { /* data overrun interrupt */ netdev_dbg(dev, "data overrun interrupt\n"); @@ -560,6 +555,10 @@ static int sun4i_can_err(struct net_device *dev, u8 isrc, u8 status) else state = CAN_STATE_ERROR_ACTIVE; } + if (skb && state != CAN_STATE_BUS_OFF) { + cf->data[6] = txerr; + cf->data[7] = rxerr; + } if (isrc & SUN4I_INT_BUS_ERR) { /* bus error interrupt */ netdev_dbg(dev, "bus error interrupt\n");
From: Vincent Mailhol mailhol.vincent@wanadoo.fr
[ Upstream commit 936e90595376e64b6247c72d3ea8b8b164b7ac96 ]
During bus off, the error count is greater than 255 and can not fit in a u8.
Fixes: aec5fb2268b7 ("can: kvaser_usb: Add support for Kvaser USB hydra family") Link: https://lore.kernel.org/all/20220719143550.3681-8-mailhol.vincent@wanadoo.fr CC: Jimmy Assarsson extja@kvaser.com Signed-off-by: Vincent Mailhol mailhol.vincent@wanadoo.fr Signed-off-by: Marc Kleine-Budde mkl@pengutronix.de Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/can/usb/kvaser_usb/kvaser_usb_hydra.c | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-)
diff --git a/drivers/net/can/usb/kvaser_usb/kvaser_usb_hydra.c b/drivers/net/can/usb/kvaser_usb/kvaser_usb_hydra.c index a7c408acb0c0..01d4a731b579 100644 --- a/drivers/net/can/usb/kvaser_usb/kvaser_usb_hydra.c +++ b/drivers/net/can/usb/kvaser_usb/kvaser_usb_hydra.c @@ -890,8 +890,10 @@ static void kvaser_usb_hydra_update_state(struct kvaser_usb_net_priv *priv, new_state < CAN_STATE_BUS_OFF) priv->can.can_stats.restarts++;
- cf->data[6] = bec->txerr; - cf->data[7] = bec->rxerr; + if (new_state != CAN_STATE_BUS_OFF) { + cf->data[6] = bec->txerr; + cf->data[7] = bec->rxerr; + }
stats = &netdev->stats; stats->rx_packets++; @@ -1045,8 +1047,10 @@ kvaser_usb_hydra_error_frame(struct kvaser_usb_net_priv *priv, shhwtstamps->hwtstamp = hwtstamp;
cf->can_id |= CAN_ERR_BUSERROR; - cf->data[6] = bec.txerr; - cf->data[7] = bec.rxerr; + if (new_state != CAN_STATE_BUS_OFF) { + cf->data[6] = bec.txerr; + cf->data[7] = bec.rxerr; + }
stats->rx_packets++; stats->rx_bytes += cf->can_dlc;
From: Vincent Mailhol mailhol.vincent@wanadoo.fr
[ Upstream commit a57732084e06791d37ea1ea447cca46220737abd ]
During bus off, the error count is greater than 255 and can not fit in a u8.
Fixes: 7259124eac7d1 ("can: kvaser_usb: Split driver into kvaser_usb_core.c and kvaser_usb_leaf.c") Link: https://lore.kernel.org/all/20220719143550.3681-9-mailhol.vincent@wanadoo.fr CC: Jimmy Assarsson extja@kvaser.com Signed-off-by: Vincent Mailhol mailhol.vincent@wanadoo.fr Signed-off-by: Marc Kleine-Budde mkl@pengutronix.de Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/can/usb/kvaser_usb/kvaser_usb_leaf.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/net/can/usb/kvaser_usb/kvaser_usb_leaf.c b/drivers/net/can/usb/kvaser_usb/kvaser_usb_leaf.c index 0e0403dd0550..5e281249ad5f 100644 --- a/drivers/net/can/usb/kvaser_usb/kvaser_usb_leaf.c +++ b/drivers/net/can/usb/kvaser_usb/kvaser_usb_leaf.c @@ -857,8 +857,10 @@ static void kvaser_usb_leaf_rx_error(const struct kvaser_usb *dev, break; }
- cf->data[6] = es->txerr; - cf->data[7] = es->rxerr; + if (new_state != CAN_STATE_BUS_OFF) { + cf->data[6] = es->txerr; + cf->data[7] = es->rxerr; + }
stats->rx_packets++; stats->rx_bytes += cf->can_dlc;
From: Vincent Mailhol mailhol.vincent@wanadoo.fr
[ Upstream commit aebe8a2433cd090ccdc222861f44bddb75eb01de ]
During bus off, the error count is greater than 255 and can not fit in a u8.
Fixes: 0024d8ad1639 ("can: usb_8dev: Add support for USB2CAN interface from 8 devices") Link: https://lore.kernel.org/all/20220719143550.3681-10-mailhol.vincent@wanadoo.f... Signed-off-by: Vincent Mailhol mailhol.vincent@wanadoo.fr Signed-off-by: Marc Kleine-Budde mkl@pengutronix.de Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/can/usb/usb_8dev.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/drivers/net/can/usb/usb_8dev.c b/drivers/net/can/usb/usb_8dev.c index 232f45f722f0..5cb5be4dc941 100644 --- a/drivers/net/can/usb/usb_8dev.c +++ b/drivers/net/can/usb/usb_8dev.c @@ -453,9 +453,10 @@ static void usb_8dev_rx_err_msg(struct usb_8dev_priv *priv,
if (rx_errors) stats->rx_errors++; - - cf->data[6] = txerr; - cf->data[7] = rxerr; + if (priv->can.state != CAN_STATE_BUS_OFF) { + cf->data[6] = txerr; + cf->data[7] = rxerr; + }
priv->bec.txerr = txerr; priv->bec.rxerr = rxerr;
From: Vincent Mailhol mailhol.vincent@wanadoo.fr
[ Upstream commit e70a3263a7eed768d5f947b8f2aff8d2a79c9d97 ]
Currently, data[5..7] of struct can_frame, when used as a CAN error frame, are defined as being "controller specific". Device specific behaviours are problematic because it prevents someone from writing code which is portable between devices.
As a matter of fact, data[5] is never used, data[6] is always used to report TX error counter and data[7] is always used to report RX error counter. can-utils also relies on this.
This patch updates the comment in the uapi header to specify that data[5] is reserved (and thus should not be used) and that data[6..7] are used for error counters.
Fixes: 0d66548a10cb ("[CAN]: Add PF_CAN core module") Link: https://lore.kernel.org/all/20220719143550.3681-11-mailhol.vincent@wanadoo.f... Signed-off-by: Vincent Mailhol mailhol.vincent@wanadoo.fr Signed-off-by: Marc Kleine-Budde mkl@pengutronix.de Signed-off-by: Sasha Levin sashal@kernel.org --- include/uapi/linux/can/error.h | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/include/uapi/linux/can/error.h b/include/uapi/linux/can/error.h index bfc4b5d22a5e..383f3d508a53 100644 --- a/include/uapi/linux/can/error.h +++ b/include/uapi/linux/can/error.h @@ -120,6 +120,9 @@ #define CAN_ERR_TRX_CANL_SHORT_TO_GND 0x70 /* 0111 0000 */ #define CAN_ERR_TRX_CANL_SHORT_TO_CANH 0x80 /* 1000 0000 */
-/* controller specific additional information / data[5..7] */ +/* data[5] is reserved (do not use) */ + +/* TX error counter / data[6] */ +/* RX error counter / data[7] */
#endif /* _UAPI_CAN_ERROR_H */
From: Vincent Mailhol mailhol.vincent@wanadoo.fr
[ Upstream commit 9950f11211331180269867aef848c7cf56861742 ]
After commit 3a5c7e4611dd, the variable errc is accessed before being initialized, c.f. below W=2 warning:
| In function 'pch_can_error', | inlined from 'pch_can_poll' at drivers/net/can/pch_can.c:739:4: | drivers/net/can/pch_can.c:501:29: warning: 'errc' may be used uninitialized [-Wmaybe-uninitialized] | 501 | cf->data[6] = errc & PCH_TEC; | | ^ | drivers/net/can/pch_can.c: In function 'pch_can_poll': | drivers/net/can/pch_can.c:484:13: note: 'errc' was declared here | 484 | u32 errc, lec; | | ^~~~
Moving errc initialization up solves this issue.
Fixes: 3a5c7e4611dd ("can: pch_can: do not report txerr and rxerr during bus-off") Reported-by: Nathan Chancellor nathan@kernel.org Signed-off-by: Vincent Mailhol mailhol.vincent@wanadoo.fr Reviewed-by: Nathan Chancellor nathan@kernel.org Link: https://lore.kernel.org/all/20220721160032.9348-1-mailhol.vincent@wanadoo.fr Signed-off-by: Marc Kleine-Budde mkl@pengutronix.de Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/can/pch_can.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/can/pch_can.c b/drivers/net/can/pch_can.c index 3e1d71c70b0d..25def028a1dc 100644 --- a/drivers/net/can/pch_can.c +++ b/drivers/net/can/pch_can.c @@ -500,6 +500,7 @@ static void pch_can_error(struct net_device *ndev, u32 status) if (!skb) return;
+ errc = ioread32(&priv->regs->errc); if (status & PCH_BUS_OFF) { pch_can_set_tx_all(priv, 0); pch_can_set_rx_all(priv, 0); @@ -512,7 +513,6 @@ static void pch_can_error(struct net_device *ndev, u32 status) cf->data[7] = (errc & PCH_REC) >> 8; }
- errc = ioread32(&priv->regs->errc); /* Warning interrupt. */ if (status & PCH_EWARN) { state = CAN_STATE_ERROR_WARNING;
From: Jiasheng Jiang jiasheng@iscas.ac.cn
[ Upstream commit ab2d2a982ff721f4b029282d9a40602ea46a745e ]
As platform_driver_register() could fail, it should be better to deal with the return value in order to maintain the code consisitency.
Fixes: 1ab1f239bf17 ("Bluetooth: hci_intel: Add support for platform driver") Signed-off-by: Jiasheng Jiang jiasheng@iscas.ac.cn Signed-off-by: Marcel Holtmann marcel@holtmann.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/bluetooth/hci_intel.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/bluetooth/hci_intel.c b/drivers/bluetooth/hci_intel.c index e9228520e4c7..727fa4347b1e 100644 --- a/drivers/bluetooth/hci_intel.c +++ b/drivers/bluetooth/hci_intel.c @@ -1253,7 +1253,11 @@ static struct platform_driver intel_driver = {
int __init intel_init(void) { - platform_driver_register(&intel_driver); + int err; + + err = platform_driver_register(&intel_driver); + if (err) + return err;
return hci_uart_register_proto(&intel_proto); }
From: Lars-Peter Clausen lars@metafoo.de
[ Upstream commit 9fdf6d97f03035ad5298e2d1635036c74c2090ed ]
SMBus packet error checking (PEC) is implemented by appending one additional byte of checksum data at the end of the message. This provides additional protection and allows to detect data corruption on the I2C bus.
SMBus block reads support variable length reads. The first byte in the read message is the number of available data bytes.
The combination of PEC and block read is currently not supported by the Cadence I2C driver. * When PEC is enabled the maximum transfer length for block reads increases from 33 to 34 bytes. * The I2C core smbus emulation layer relies on the driver updating the `i2c_msg` `len` field with the number of received bytes. The updated length is used when checking the PEC.
Add support to the Cadence I2C driver for handling SMBus block reads with PEC. To determine the maximum transfer length uses the initial `len` value of the `i2c_msg`. When PEC is enabled this will be 2, when it is disabled it will be 1.
Once a read transfer is done also increment the `len` field by the amount of received data bytes.
This change has been tested with a UCM90320 PMBus power monitor, which requires block reads to access certain data fields, but also has PEC enabled by default.
Fixes: df8eb5691c48 ("i2c: Add driver for Cadence I2C controller") Signed-off-by: Lars-Peter Clausen lars@metafoo.de Tested-by: Shubhrajyoti Datta Shubhrajyoti.datta@amd.com Signed-off-by: Wolfram Sang wsa@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/i2c/busses/i2c-cadence.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-)
diff --git a/drivers/i2c/busses/i2c-cadence.c b/drivers/i2c/busses/i2c-cadence.c index 512c61d31fe5..bce7bf93d62a 100644 --- a/drivers/i2c/busses/i2c-cadence.c +++ b/drivers/i2c/busses/i2c-cadence.c @@ -353,8 +353,13 @@ static void cdns_i2c_mrecv(struct cdns_i2c *id) ctrl_reg = cdns_i2c_readreg(CDNS_I2C_CR_OFFSET); ctrl_reg |= CDNS_I2C_CR_RW | CDNS_I2C_CR_CLR_FIFO;
+ /* + * Receive up to I2C_SMBUS_BLOCK_MAX data bytes, plus one message length + * byte, plus one checksum byte if PEC is enabled. p_msg->len will be 2 if + * PEC is enabled, otherwise 1. + */ if (id->p_msg->flags & I2C_M_RECV_LEN) - id->recv_count = I2C_SMBUS_BLOCK_MAX + 1; + id->recv_count = I2C_SMBUS_BLOCK_MAX + id->p_msg->len;
id->curr_recv_count = id->recv_count;
@@ -540,6 +545,9 @@ static int cdns_i2c_process_msg(struct cdns_i2c *id, struct i2c_msg *msg, if (id->err_status & CDNS_I2C_IXR_ARB_LOST) return -EAGAIN;
+ if (msg->flags & I2C_M_RECV_LEN) + msg->len += min_t(unsigned int, msg->buf[0], I2C_SMBUS_BLOCK_MAX); + return 0; }
From: Liang He windhl@126.com
[ Upstream commit 6435319c34704994e19b0767f6a4e6f37439867b ]
In i2c_mux_probe(), we should call of_node_put() when breaking out of for_each_child_of_node() which will automatically increase and decrease the refcount.
Fixes: ac8498f0ce53 ("i2c: i2c-mux-gpmux: new driver") Signed-off-by: Liang He windhl@126.com Acked-by: Peter Rosin peda@axentia.se Signed-off-by: Wolfram Sang wsa@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/i2c/muxes/i2c-mux-gpmux.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/i2c/muxes/i2c-mux-gpmux.c b/drivers/i2c/muxes/i2c-mux-gpmux.c index 92cf5f48afe6..5053f1675a29 100644 --- a/drivers/i2c/muxes/i2c-mux-gpmux.c +++ b/drivers/i2c/muxes/i2c-mux-gpmux.c @@ -141,6 +141,7 @@ static int i2c_mux_probe(struct platform_device *pdev) return 0;
err_children: + of_node_put(child); i2c_mux_del_adapters(muxc); err_parent: i2c_put_adapter(parent);
From: Ammar Faizi ammarfaizi2@gnuweeb.org
[ Upstream commit d578e0af3a003736f6c440188b156483d451b329 ]
Commit 7a4836560a61 changes simple_write_to_buffer() with memdup_user() but it forgets to change the value to be returned that came from simple_write_to_buffer() call. It results in the following warning:
warning: variable 'rc' is uninitialized when used here [-Wuninitialized] return rc; ^~
Remove rc variable and just return the passed in length if the memdup_user() succeeds.
Cc: Dan Carpenter dan.carpenter@oracle.com Reported-by: kernel test robot lkp@intel.com Fixes: 7a4836560a6198d245d5732e26f94898b12eb760 ("wifi: wil6210: debugfs: fix info leak in wil_write_file_wmi()") Fixes: ff974e4083341383d3dd4079e52ed30f57f376f0 ("wil6210: debugfs interface to send raw WMI command") Signed-off-by: Ammar Faizi ammarfaizi2@gnuweeb.org Reviewed-by: Dan Carpenter dan.carpenter@oracle.com Signed-off-by: Kalle Valo quic_kvalo@quicinc.com Link: https://lore.kernel.org/r/20220724202452.61846-1-ammar.faizi@intel.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/wireless/ath/wil6210/debugfs.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/net/wireless/ath/wil6210/debugfs.c b/drivers/net/wireless/ath/wil6210/debugfs.c index 675b2829b4c7..3a46b319e9f1 100644 --- a/drivers/net/wireless/ath/wil6210/debugfs.c +++ b/drivers/net/wireless/ath/wil6210/debugfs.c @@ -1002,7 +1002,7 @@ static ssize_t wil_write_file_wmi(struct file *file, const char __user *buf, void *cmd; int cmdlen = len - sizeof(struct wmi_cmd_hdr); u16 cmdid; - int rc, rc1; + int rc1;
if (cmdlen < 0 || *ppos != 0) return -EINVAL; @@ -1019,7 +1019,7 @@ static ssize_t wil_write_file_wmi(struct file *file, const char __user *buf,
wil_info(wil, "0x%04x[%d] -> %d\n", cmdid, cmdlen, rc1);
- return rc; + return len; }
static const struct file_operations fops_wmi = {
From: Hangyu Hua hbh25y@gmail.com
[ Upstream commit 6fd57e1d120bf13d4dc6c200a7cf914e6347a316 ]
usb_get_dev will be called before lbs_get_firmware_async which means that usb_put_dev need to be called when lbs_get_firmware_async fails.
Fixes: ce84bb69f50e ("libertas USB: convert to asynchronous firmware loading") Signed-off-by: Hangyu Hua hbh25y@gmail.com Signed-off-by: Kalle Valo kvalo@kernel.org Link: https://lore.kernel.org/r/20220620092350.39960-1-hbh25y@gmail.com Link: https://lore.kernel.org/r/20220622113402.16969-1-colin.i.king@gmail.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/wireless/marvell/libertas/if_usb.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/net/wireless/marvell/libertas/if_usb.c b/drivers/net/wireless/marvell/libertas/if_usb.c index f29a154d995c..d75763410cdc 100644 --- a/drivers/net/wireless/marvell/libertas/if_usb.c +++ b/drivers/net/wireless/marvell/libertas/if_usb.c @@ -283,6 +283,7 @@ static int if_usb_probe(struct usb_interface *intf, return 0;
err_get_fw: + usb_put_dev(udev); lbs_remove_card(priv); err_add_card: if_usb_reset_device(cardp);
From: Maxim Mikityanskiy maximmi@nvidia.com
[ Upstream commit 562696c3c62c7c23dd896e9447252ce9268cb812 ]
MLX5E_MAX_RQ_NUM_MTTS should be the maximum value, so that MLX5_MTT_OCTW(MLX5E_MAX_RQ_NUM_MTTS) fits into u16. The current value of 1 << 17 results in MLX5_MTT_OCTW(1 << 17) = 1 << 16, which doesn't fit into u16. This commit replaces it with the maximum value that still fits u16.
Fixes: 73281b78a37a ("net/mlx5e: Derive Striding RQ size from MTU") Signed-off-by: Maxim Mikityanskiy maximmi@nvidia.com Reviewed-by: Tariq Toukan tariqt@nvidia.com Signed-off-by: Saeed Mahameed saeedm@nvidia.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/ethernet/mellanox/mlx5/core/en.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en.h b/drivers/net/ethernet/mellanox/mlx5/core/en.h index d79e177f8990..ec303d4d2d7a 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en.h +++ b/drivers/net/ethernet/mellanox/mlx5/core/en.h @@ -95,7 +95,7 @@ struct page_pool; #define MLX5E_LOG_ALIGNED_MPWQE_PPW (ilog2(MLX5E_REQUIRED_WQE_MTTS)) #define MLX5E_REQUIRED_MTTS(wqes) (wqes * MLX5E_REQUIRED_WQE_MTTS) #define MLX5E_MAX_RQ_NUM_MTTS \ - ((1 << 16) * 2) /* So that MLX5_MTT_OCTW(num_mtts) fits into u16 */ + (ALIGN_DOWN(U16_MAX, 4) * 2) /* So that MLX5_MTT_OCTW(num_mtts) fits into u16 */ #define MLX5E_ORDER2_MAX_PACKET_MTU (order_base_2(10 * 1024)) #define MLX5E_PARAMS_MAXIMUM_LOG_RQ_SIZE_MPW \ (ilog2(MLX5E_MAX_RQ_NUM_MTTS / MLX5E_REQUIRED_WQE_MTTS))
From: Jakub Kicinski kuba@kernel.org
[ Upstream commit d0b80a9edb1a029ff913e81b47540e57ad034329 ]
We need to suppress warnings from sily map sizes. Also switch from GFP_USER to GFP_KERNEL_ACCOUNT, I'm pretty sure I misunderstood the flags when writing this code.
Fixes: 395cacb5f1a0 ("netdevsim: bpf: support fake map offload") Reported-by: syzbot+ad24705d3fd6463b18c6@syzkaller.appspotmail.com Signed-off-by: Jakub Kicinski kuba@kernel.org Signed-off-by: Andrii Nakryiko andrii@kernel.org Link: https://lore.kernel.org/bpf/20220726213605.154204-1-kuba@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/netdevsim/bpf.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/drivers/net/netdevsim/bpf.c b/drivers/net/netdevsim/bpf.c index 12f100392ed1..ca9042ddb6d7 100644 --- a/drivers/net/netdevsim/bpf.c +++ b/drivers/net/netdevsim/bpf.c @@ -330,10 +330,12 @@ nsim_map_alloc_elem(struct bpf_offloaded_map *offmap, unsigned int idx) { struct nsim_bpf_bound_map *nmap = offmap->dev_priv;
- nmap->entry[idx].key = kmalloc(offmap->map.key_size, GFP_USER); + nmap->entry[idx].key = kmalloc(offmap->map.key_size, + GFP_KERNEL_ACCOUNT | __GFP_NOWARN); if (!nmap->entry[idx].key) return -ENOMEM; - nmap->entry[idx].value = kmalloc(offmap->map.value_size, GFP_USER); + nmap->entry[idx].value = kmalloc(offmap->map.value_size, + GFP_KERNEL_ACCOUNT | __GFP_NOWARN); if (!nmap->entry[idx].value) { kfree(nmap->entry[idx].key); nmap->entry[idx].key = NULL; @@ -475,7 +477,7 @@ nsim_bpf_map_alloc(struct netdevsim *ns, struct bpf_offloaded_map *offmap) if (offmap->map.map_flags) return -EINVAL;
- nmap = kzalloc(sizeof(*nmap), GFP_USER); + nmap = kzalloc(sizeof(*nmap), GFP_KERNEL_ACCOUNT); if (!nmap) return -ENOMEM;
From: Eric Dumazet edumazet@google.com
[ Upstream commit 931027820e4dafabc78aff82af59f8c1c4bd3128 ]
Bernard reported that trying to unload rose module would lead to infamous messages:
unregistered_netdevice: waiting for rose0 to become free. Usage count = xx
This patch solves the issue, by making sure each socket referring to a netdevice holds a reference count on it, and properly releases it in rose_release().
rose_dev_first() is also fixed to take a device reference before leaving the rcu_read_locked section.
Following patch will add ref_tracker annotations to ease future bug hunting.
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Reported-by: Bernard Pidoux f6bvp@free.fr Signed-off-by: Eric Dumazet edumazet@google.com Tested-by: Bernard Pidoux f6bvp@free.fr Signed-off-by: Jakub Kicinski kuba@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- net/rose/af_rose.c | 11 +++++++++-- net/rose/rose_route.c | 2 ++ 2 files changed, 11 insertions(+), 2 deletions(-)
diff --git a/net/rose/af_rose.c b/net/rose/af_rose.c index d00a0ef39a56..03a1ee221112 100644 --- a/net/rose/af_rose.c +++ b/net/rose/af_rose.c @@ -194,6 +194,7 @@ static void rose_kill_by_device(struct net_device *dev) rose_disconnect(s, ENETUNREACH, ROSE_OUT_OF_ORDER, 0); if (rose->neighbour) rose->neighbour->use--; + dev_put(rose->device); rose->device = NULL; } } @@ -594,6 +595,8 @@ static struct sock *rose_make_new(struct sock *osk) rose->idle = orose->idle; rose->defer = orose->defer; rose->device = orose->device; + if (rose->device) + dev_hold(rose->device); rose->qbitincl = orose->qbitincl;
return sk; @@ -647,6 +650,7 @@ static int rose_release(struct socket *sock) break; }
+ dev_put(rose->device); sock->sk = NULL; release_sock(sk); sock_put(sk); @@ -721,7 +725,6 @@ static int rose_connect(struct socket *sock, struct sockaddr *uaddr, int addr_le struct rose_sock *rose = rose_sk(sk); struct sockaddr_rose *addr = (struct sockaddr_rose *)uaddr; unsigned char cause, diagnostic; - struct net_device *dev; ax25_uid_assoc *user; int n, err = 0;
@@ -778,9 +781,12 @@ static int rose_connect(struct socket *sock, struct sockaddr *uaddr, int addr_le }
if (sock_flag(sk, SOCK_ZAPPED)) { /* Must bind first - autobinding in this may or may not work */ + struct net_device *dev; + sock_reset_flag(sk, SOCK_ZAPPED);
- if ((dev = rose_dev_first()) == NULL) { + dev = rose_dev_first(); + if (!dev) { err = -ENETUNREACH; goto out_release; } @@ -788,6 +794,7 @@ static int rose_connect(struct socket *sock, struct sockaddr *uaddr, int addr_le user = ax25_findbyuid(current_euid()); if (!user) { err = -EINVAL; + dev_put(dev); goto out_release; }
diff --git a/net/rose/rose_route.c b/net/rose/rose_route.c index 46ae92d70324..5671853bef83 100644 --- a/net/rose/rose_route.c +++ b/net/rose/rose_route.c @@ -616,6 +616,8 @@ struct net_device *rose_dev_first(void) if (first == NULL || strncmp(dev->name, first->name, 3) < 0) first = dev; } + if (first) + dev_hold(first); rcu_read_unlock();
return first;
From: Hangyu Hua hbh25y@gmail.com
[ Upstream commit a41b17ff9dacd22f5f118ee53d82da0f3e52d5e3 ]
In the case of sk->dccps_qpolicy == DCCPQ_POLICY_PRIO, dccp_qpolicy_full will drop a skb when qpolicy is full. And the lock in dccp_sendmsg is released before sock_alloc_send_skb and then relocked after sock_alloc_send_skb. The following conditions may lead dccp_qpolicy_push to add skb to an already full sk_write_queue:
thread1--->lock thread1--->dccp_qpolicy_full: queue is full. drop a skb thread1--->unlock thread2--->lock thread2--->dccp_qpolicy_full: queue is not full. no need to drop. thread2--->unlock thread1--->lock thread1--->dccp_qpolicy_push: add a skb. queue is full. thread1--->unlock thread2--->lock thread2--->dccp_qpolicy_push: add a skb! thread2--->unlock
Fix this by moving dccp_qpolicy_full.
Fixes: b1308dc015eb ("[DCCP]: Set TX Queue Length Bounds via Sysctl") Signed-off-by: Hangyu Hua hbh25y@gmail.com Link: https://lore.kernel.org/r/20220729110027.40569-1-hbh25y@gmail.com Signed-off-by: Jakub Kicinski kuba@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- net/dccp/proto.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/net/dccp/proto.c b/net/dccp/proto.c index 43733accf58e..dbbcf50aea35 100644 --- a/net/dccp/proto.c +++ b/net/dccp/proto.c @@ -769,11 +769,6 @@ int dccp_sendmsg(struct sock *sk, struct msghdr *msg, size_t len)
lock_sock(sk);
- if (dccp_qpolicy_full(sk)) { - rc = -EAGAIN; - goto out_release; - } - timeo = sock_sndtimeo(sk, noblock);
/* @@ -792,6 +787,11 @@ int dccp_sendmsg(struct sock *sk, struct msghdr *msg, size_t len) if (skb == NULL) goto out_release;
+ if (dccp_qpolicy_full(sk)) { + rc = -EAGAIN; + goto out_discard; + } + if (sk->sk_state == DCCP_CLOSED) { rc = -ENOTCONN; goto out_discard;
From: Ralph Siemsen ralph.siemsen@linaro.org
[ Upstream commit 2dee50ab9e72a3cae75b65e5934c8dd3e9bf01bc ]
There are two UART clock groups, each having a mux to select its upstream clock source. The register/bit definitions for accessing these two muxes appear to have been reversed since introduction. Correct them so as to match the hardware manual.
Fixes: 4c3d88526eba ("clk: renesas: Renesas R9A06G032 clock driver")
Signed-off-by: Ralph Siemsen ralph.siemsen@linaro.org Reviewed-by: Phil Edworthy phil.edworthy@renesas.com Link: https://lore.kernel.org/r/20220518182527.1693156-1-ralph.siemsen@linaro.org Signed-off-by: Geert Uytterhoeven geert+renesas@glider.be Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/clk/renesas/r9a06g032-clocks.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/clk/renesas/r9a06g032-clocks.c b/drivers/clk/renesas/r9a06g032-clocks.c index 6e03b467395b..ec48b5516e17 100644 --- a/drivers/clk/renesas/r9a06g032-clocks.c +++ b/drivers/clk/renesas/r9a06g032-clocks.c @@ -277,8 +277,8 @@ static const struct r9a06g032_clkdesc r9a06g032_clocks[] __initconst = { .name = "uart_group_012", .type = K_BITSEL, .source = 1 + R9A06G032_DIV_UART, - /* R9A06G032_SYSCTRL_REG_PWRCTRL_PG1_PR2 */ - .dual.sel = ((0xec / 4) << 5) | 24, + /* R9A06G032_SYSCTRL_REG_PWRCTRL_PG0_0 */ + .dual.sel = ((0x34 / 4) << 5) | 30, .dual.group = 0, }, { @@ -286,8 +286,8 @@ static const struct r9a06g032_clkdesc r9a06g032_clocks[] __initconst = { .name = "uart_group_34567", .type = K_BITSEL, .source = 1 + R9A06G032_DIV_P2_PG, - /* R9A06G032_SYSCTRL_REG_PWRCTRL_PG0_0 */ - .dual.sel = ((0x34 / 4) << 5) | 30, + /* R9A06G032_SYSCTRL_REG_PWRCTRL_PG1_PR2 */ + .dual.sel = ((0xec / 4) << 5) | 24, .dual.group = 1, }, D_UGATE(CLK_UART0, "clk_uart0", UART_GROUP_012, 0, 0, 0x1b2, 0x1b3, 0x1b4, 0x1b5),
From: Miaoqian Lin linmq006@gmail.com
[ Upstream commit 33ec82a6d2b119938f26e5c8040ed5d92378eb54 ]
of_find_matching_node_and_match() returns a node pointer with refcount incremented, we should use of_node_put() on it when not need anymore. Add missing of_node_put() to avoid refcount leak.
Fixes: b0afd44bc192 ("mtd: physmap_of: add a hook for Versatile write protection") Signed-off-by: Miaoqian Lin linmq006@gmail.com Reviewed-by: Linus Walleij linus.walleij@linaro.org Signed-off-by: Miquel Raynal miquel.raynal@bootlin.com Link: https://lore.kernel.org/linux-mtd/20220523140205.48625-1-linmq006@gmail.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/mtd/maps/physmap_of_versatile.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/mtd/maps/physmap_of_versatile.c b/drivers/mtd/maps/physmap_of_versatile.c index 03f2b6e7bc7e..961704228dd2 100644 --- a/drivers/mtd/maps/physmap_of_versatile.c +++ b/drivers/mtd/maps/physmap_of_versatile.c @@ -221,6 +221,7 @@ int of_flash_probe_versatile(struct platform_device *pdev,
versatile_flashprot = (enum versatile_flashprot)devid->data; rmap = syscon_node_to_regmap(sysnp); + of_node_put(sysnp); if (IS_ERR(rmap)) return PTR_ERR(rmap);
From: Miaoqian Lin linmq006@gmail.com
[ Upstream commit 77087a04c8fd554134bddcb8a9ff87b21f357926 ]
of_find_matching_node() returns a node pointer with refcount incremented, we should use of_node_put() on it when not need anymore. Add missing of_node_put() to avoid refcount leak.
Fixes: b0afd44bc192 ("mtd: physmap_of: add a hook for Versatile write protection") Signed-off-by: Miaoqian Lin linmq006@gmail.com Reviewed-by: Linus Walleij linus.walleij@linaro.org Signed-off-by: Miquel Raynal miquel.raynal@bootlin.com Link: https://lore.kernel.org/linux-mtd/20220523143255.4376-1-linmq006@gmail.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/mtd/maps/physmap_of_versatile.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/mtd/maps/physmap_of_versatile.c b/drivers/mtd/maps/physmap_of_versatile.c index 961704228dd2..7d56e97bd50f 100644 --- a/drivers/mtd/maps/physmap_of_versatile.c +++ b/drivers/mtd/maps/physmap_of_versatile.c @@ -107,6 +107,7 @@ static int ap_flash_init(struct platform_device *pdev) return -ENODEV; } ebi_base = of_iomap(ebi, 0); + of_node_put(ebi); if (!ebi_base) return -ENODEV;
From: Harshit Mogalapalli harshit.m.mogalapalli@oracle.com
[ Upstream commit 381583845d19cb4bd21c8193449385f3fefa9caf ]
Smatch warnings: drivers/hid/hid-cp2112.c:793 cp2112_xfer() error: __memcpy() 'data->block[1]' too small (33 vs 255) drivers/hid/hid-cp2112.c:793 cp2112_xfer() error: __memcpy() 'buf' too small (64 vs 255)
The 'read_length' variable is provided by 'data->block[0]' which comes from user and it(read_length) can take a value between 0-255. Add an upper bound to 'read_length' variable to prevent a buffer overflow in memcpy().
Fixes: 542134c0375b ("HID: cp2112: Fix I2C_BLOCK_DATA transactions") Signed-off-by: Harshit Mogalapalli harshit.m.mogalapalli@oracle.com Signed-off-by: Jiri Kosina jkosina@suse.cz Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/hid/hid-cp2112.c | 5 +++++ 1 file changed, 5 insertions(+)
diff --git a/drivers/hid/hid-cp2112.c b/drivers/hid/hid-cp2112.c index 6f65f5257236..637a7ce281c6 100644 --- a/drivers/hid/hid-cp2112.c +++ b/drivers/hid/hid-cp2112.c @@ -794,6 +794,11 @@ static int cp2112_xfer(struct i2c_adapter *adap, u16 addr, data->word = le16_to_cpup((__le16 *)buf); break; case I2C_SMBUS_I2C_BLOCK_DATA: + if (read_length > I2C_SMBUS_BLOCK_MAX) { + ret = -EINVAL; + goto power_normal; + } + memcpy(data->block + 1, buf, read_length); break; case I2C_SMBUS_BLOCK_DATA:
From: Duoming Zhou duoming@zju.edu.cn
[ Upstream commit a61528d997619a518ee8c51cf0ef0513021afaff ]
There is a deadlock between sm_release and sm_cache_flush_work which is a work item. The cancel_work_sync in sm_release will not return until sm_cache_flush_work is finished. If we hold mutex_lock and use cancel_work_sync to wait the work item to finish, the work item also requires mutex_lock. As a result, the sm_release will be blocked forever. The race condition is shown below:
(Thread 1) | (Thread 2) sm_release | mutex_lock(&ftl->mutex) | sm_cache_flush_work | mutex_lock(&ftl->mutex) cancel_work_sync | ...
This patch moves del_timer_sync and cancel_work_sync out of mutex_lock in order to mitigate deadlock.
Fixes: 7d17c02a01a1 ("mtd: Add new SmartMedia/xD FTL") Signed-off-by: Duoming Zhou duoming@zju.edu.cn Signed-off-by: Miquel Raynal miquel.raynal@bootlin.com Link: https://lore.kernel.org/linux-mtd/20220524044841.10517-1-duoming@zju.edu.cn Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/mtd/sm_ftl.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/mtd/sm_ftl.c b/drivers/mtd/sm_ftl.c index f3bd86e13603..e57f7ba054bc 100644 --- a/drivers/mtd/sm_ftl.c +++ b/drivers/mtd/sm_ftl.c @@ -1091,9 +1091,9 @@ static void sm_release(struct mtd_blktrans_dev *dev) { struct sm_ftl *ftl = dev->priv;
- mutex_lock(&ftl->mutex); del_timer_sync(&ftl->timer); cancel_work_sync(&ftl->flush_work); + mutex_lock(&ftl->mutex); sm_cache_flush(ftl); mutex_unlock(&ftl->mutex); }
From: Uwe Kleine-König u.kleine-koenig@pengutronix.de
[ Upstream commit 28607b426c3d050714f250d0faeb99d2e9106e90 ]
For all but one error path clk_disable_unprepare() is already there. Add it to the one location where it's missing.
Fixes: 481815a6193b ("mtd: st_spi_fsm: Handle clk_prepare_enable/clk_disable_unprepare.") Fixes: 69d5af8d016c ("mtd: st_spi_fsm: Obtain and use EMI clock") Signed-off-by: Uwe Kleine-König u.kleine-koenig@pengutronix.de Signed-off-by: Miquel Raynal miquel.raynal@bootlin.com Link: https://lore.kernel.org/linux-mtd/20220607152458.232847-2-u.kleine-koenig@pe... Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/mtd/devices/st_spi_fsm.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/drivers/mtd/devices/st_spi_fsm.c b/drivers/mtd/devices/st_spi_fsm.c index 55d4a77f3b7f..533096c88ae1 100644 --- a/drivers/mtd/devices/st_spi_fsm.c +++ b/drivers/mtd/devices/st_spi_fsm.c @@ -2120,10 +2120,12 @@ static int stfsm_probe(struct platform_device *pdev) (long long)fsm->mtd.size, (long long)(fsm->mtd.size >> 20), fsm->mtd.erasesize, (fsm->mtd.erasesize >> 10));
- return mtd_device_register(&fsm->mtd, NULL, 0); - + ret = mtd_device_register(&fsm->mtd, NULL, 0); + if (ret) { err_clk_unprepare: - clk_disable_unprepare(fsm->clk); + clk_disable_unprepare(fsm->clk); + } + return ret; }
From: Marco Pagani marpagan@redhat.com
[ Upstream commit 2df84a757d87fd62869fc401119d429735377ec5 ]
Fix the "comparison with less than zero" warning reported by cppcheck for the unsigned (size_t) parameter count of the alt_pr_fpga_write() function.
Fixes: d201cc17a8a3 ("fpga pr ip: Core driver support for Altera Partial Reconfiguration IP") Reviewed-by: Tom Rix trix@redhat.com Acked-by: Xu Yilun yilun.xu@intel.com Signed-off-by: Marco Pagani marpagan@redhat.com Link: https://lore.kernel.org/r/20220609140520.42662-1-marpagan@redhat.com Signed-off-by: Xu Yilun yilun.xu@intel.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/fpga/altera-pr-ip-core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/fpga/altera-pr-ip-core.c b/drivers/fpga/altera-pr-ip-core.c index 65e0b6a2c031..059ba27f3c29 100644 --- a/drivers/fpga/altera-pr-ip-core.c +++ b/drivers/fpga/altera-pr-ip-core.c @@ -108,7 +108,7 @@ static int alt_pr_fpga_write(struct fpga_manager *mgr, const char *buf, u32 *buffer_32 = (u32 *)buf; size_t i = 0;
- if (count <= 0) + if (!count) return -EINVAL;
/* Write out the complete 32-bit chunks */
From: Miaoqian Lin linmq006@gmail.com
[ Upstream commit b5c5b13cb45e2c88181308186b0001992cb41954 ]
of_find_compatible_node() returns a node pointer with refcount incremented, we should use of_node_put() on it when done. Add missing of_node_put() to avoid refcount leak.
Fixes: 796bcae7361c ("USB: powerpc: Workaround for the PPC440EPX USBH_23 errata [take 3]") Acked-by: Alan Stern stern@rowland.harvard.edu Signed-off-by: Miaoqian Lin linmq006@gmail.com Link: https://lore.kernel.org/r/20220602110849.58549-1-linmq006@gmail.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/usb/host/ehci-ppc-of.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/usb/host/ehci-ppc-of.c b/drivers/usb/host/ehci-ppc-of.c index 576f7d79ad4e..d1dc644b215c 100644 --- a/drivers/usb/host/ehci-ppc-of.c +++ b/drivers/usb/host/ehci-ppc-of.c @@ -148,6 +148,7 @@ static int ehci_hcd_ppc_of_probe(struct platform_device *op) } else { ehci->has_amcc_usb23 = 1; } + of_node_put(np); }
if (of_get_property(dn, "big-endian", NULL)) {
From: Miaoqian Lin linmq006@gmail.com
[ Upstream commit 302970b4cad3ebfda2c05ce06c322ccdc447d17e ]
of_parse_phandle() returns a node pointer with refcount incremented, we should use of_node_put() on it when not need anymore. Add missing of_node_put() to avoid refcount leak.
Fixes: 73108aa90cbf ("USB: ohci-nxp: Use isp1301 driver") Acked-by: Alan Stern stern@rowland.harvard.edu Signed-off-by: Miaoqian Lin linmq006@gmail.com Link: https://lore.kernel.org/r/20220603141231.979-1-linmq006@gmail.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/usb/host/ohci-nxp.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/usb/host/ohci-nxp.c b/drivers/usb/host/ohci-nxp.c index f5f532601092..a964a93ff35b 100644 --- a/drivers/usb/host/ohci-nxp.c +++ b/drivers/usb/host/ohci-nxp.c @@ -153,6 +153,7 @@ static int ohci_hcd_nxp_probe(struct platform_device *pdev) }
isp1301_i2c_client = isp1301_get_client(isp1301_node); + of_node_put(isp1301_node); if (!isp1301_i2c_client) return -EPROBE_DEFER;
From: Christophe JAILLET christophe.jaillet@wanadoo.fr
[ Upstream commit 44fd1917314e9d4f53dd95dd65df1c152f503d3a ]
If an error occurs after a successful idr_alloc() call, the corresponding resource must be released with idr_remove() as already done in the .remove function.
Update the error handling path to add the missing idr_remove() call.
Fixes: ada8a8a13b13 ("mfd: Add realtek pcie card reader driver") Signed-off-by: Christophe JAILLET christophe.jaillet@wanadoo.fr Link: https://lore.kernel.org/r/e8dc41716cbf52fb37a12e70d8972848e69df6d6.165527121... Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/misc/cardreader/rtsx_pcr.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/misc/cardreader/rtsx_pcr.c b/drivers/misc/cardreader/rtsx_pcr.c index 3eb3c237f339..80b9f36dbca4 100644 --- a/drivers/misc/cardreader/rtsx_pcr.c +++ b/drivers/misc/cardreader/rtsx_pcr.c @@ -1479,7 +1479,7 @@ static int rtsx_pci_probe(struct pci_dev *pcidev, pcr->remap_addr = ioremap_nocache(base, len); if (!pcr->remap_addr) { ret = -ENOMEM; - goto free_handle; + goto free_idr; }
pcr->rtsx_resv_buf = dma_alloc_coherent(&(pcidev->dev), @@ -1541,6 +1541,10 @@ static int rtsx_pci_probe(struct pci_dev *pcidev, pcr->rtsx_resv_buf, pcr->rtsx_resv_buf_addr); unmap: iounmap(pcr->remap_addr); +free_idr: + spin_lock(&rtsx_pci_lock); + idr_remove(&rtsx_pci_idr, pcr->id); + spin_unlock(&rtsx_pci_lock); free_handle: kfree(handle); free_pcr:
From: Robert Marko robimarko@gmail.com
[ Upstream commit 0e9e61a2815b5cd34f1b495b2d72e8127ce9b794 ]
NSS port 5 and 6 frequency tables are currently broken and are causing a wide ranges of issue like 1G not working at all on port 6 or port 5 being clocked with 312 instead of 125 MHz as UNIPHY1 gets selected.
So, update the frequency tables with the ones from the downstream QCA 5.4 based kernel which has already fixed this.
Fixes: 7117a51ed303 ("clk: qcom: ipq8074: add NSS ethernet port clocks") Signed-off-by: Robert Marko robimarko@gmail.com Signed-off-by: Bjorn Andersson bjorn.andersson@linaro.org Link: https://lore.kernel.org/r/20220515210048.483898-3-robimarko@gmail.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/clk/qcom/gcc-ipq8074.c | 8 ++++++++ 1 file changed, 8 insertions(+)
diff --git a/drivers/clk/qcom/gcc-ipq8074.c b/drivers/clk/qcom/gcc-ipq8074.c index 708c486a6e96..d9ac10b6624f 100644 --- a/drivers/clk/qcom/gcc-ipq8074.c +++ b/drivers/clk/qcom/gcc-ipq8074.c @@ -1796,8 +1796,10 @@ static struct clk_regmap_div nss_port4_tx_div_clk_src = { static const struct freq_tbl ftbl_nss_port5_rx_clk_src[] = { F(19200000, P_XO, 1, 0, 0), F(25000000, P_UNIPHY1_RX, 12.5, 0, 0), + F(25000000, P_UNIPHY0_RX, 5, 0, 0), F(78125000, P_UNIPHY1_RX, 4, 0, 0), F(125000000, P_UNIPHY1_RX, 2.5, 0, 0), + F(125000000, P_UNIPHY0_RX, 1, 0, 0), F(156250000, P_UNIPHY1_RX, 2, 0, 0), F(312500000, P_UNIPHY1_RX, 1, 0, 0), { } @@ -1836,8 +1838,10 @@ static struct clk_regmap_div nss_port5_rx_div_clk_src = { static const struct freq_tbl ftbl_nss_port5_tx_clk_src[] = { F(19200000, P_XO, 1, 0, 0), F(25000000, P_UNIPHY1_TX, 12.5, 0, 0), + F(25000000, P_UNIPHY0_TX, 5, 0, 0), F(78125000, P_UNIPHY1_TX, 4, 0, 0), F(125000000, P_UNIPHY1_TX, 2.5, 0, 0), + F(125000000, P_UNIPHY0_TX, 1, 0, 0), F(156250000, P_UNIPHY1_TX, 2, 0, 0), F(312500000, P_UNIPHY1_TX, 1, 0, 0), { } @@ -1875,8 +1879,10 @@ static struct clk_regmap_div nss_port5_tx_div_clk_src = {
static const struct freq_tbl ftbl_nss_port6_rx_clk_src[] = { F(19200000, P_XO, 1, 0, 0), + F(25000000, P_UNIPHY2_RX, 5, 0, 0), F(25000000, P_UNIPHY2_RX, 12.5, 0, 0), F(78125000, P_UNIPHY2_RX, 4, 0, 0), + F(125000000, P_UNIPHY2_RX, 1, 0, 0), F(125000000, P_UNIPHY2_RX, 2.5, 0, 0), F(156250000, P_UNIPHY2_RX, 2, 0, 0), F(312500000, P_UNIPHY2_RX, 1, 0, 0), @@ -1915,8 +1921,10 @@ static struct clk_regmap_div nss_port6_rx_div_clk_src = {
static const struct freq_tbl ftbl_nss_port6_tx_clk_src[] = { F(19200000, P_XO, 1, 0, 0), + F(25000000, P_UNIPHY2_TX, 5, 0, 0), F(25000000, P_UNIPHY2_TX, 12.5, 0, 0), F(78125000, P_UNIPHY2_TX, 4, 0, 0), + F(125000000, P_UNIPHY2_TX, 1, 0, 0), F(125000000, P_UNIPHY2_TX, 2.5, 0, 0), F(156250000, P_UNIPHY2_TX, 2, 0, 0), F(312500000, P_UNIPHY2_TX, 1, 0, 0),
From: Robert Marko robimarko@gmail.com
[ Upstream commit 2bd357e698207e2e65db03007e4be65bf9d6a7b3 ]
Currently, attempting to enable the UBI clocks will cause the stuck at off warning to be printed and clk_enable will fail.
[ 14.936694] gcc_ubi1_ahb_clk status stuck at 'off'
Downstream 5.4 QCA kernel has fixed this by seting the BRANCH_HALT_DELAY flag on UBI clocks, so lets do the same.
Fixes: 5736294aef83 ("clk: qcom: ipq8074: add NSS clocks") Signed-off-by: Robert Marko robimarko@gmail.com Signed-off-by: Bjorn Andersson bjorn.andersson@linaro.org Link: https://lore.kernel.org/r/20220515210048.483898-6-robimarko@gmail.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/clk/qcom/gcc-ipq8074.c | 10 ++++++++++ 1 file changed, 10 insertions(+)
diff --git a/drivers/clk/qcom/gcc-ipq8074.c b/drivers/clk/qcom/gcc-ipq8074.c index d9ac10b6624f..c93161d6824a 100644 --- a/drivers/clk/qcom/gcc-ipq8074.c +++ b/drivers/clk/qcom/gcc-ipq8074.c @@ -3362,6 +3362,7 @@ static struct clk_branch gcc_nssnoc_ubi1_ahb_clk = {
static struct clk_branch gcc_ubi0_ahb_clk = { .halt_reg = 0x6820c, + .halt_check = BRANCH_HALT_DELAY, .clkr = { .enable_reg = 0x6820c, .enable_mask = BIT(0), @@ -3379,6 +3380,7 @@ static struct clk_branch gcc_ubi0_ahb_clk = {
static struct clk_branch gcc_ubi0_axi_clk = { .halt_reg = 0x68200, + .halt_check = BRANCH_HALT_DELAY, .clkr = { .enable_reg = 0x68200, .enable_mask = BIT(0), @@ -3396,6 +3398,7 @@ static struct clk_branch gcc_ubi0_axi_clk = {
static struct clk_branch gcc_ubi0_nc_axi_clk = { .halt_reg = 0x68204, + .halt_check = BRANCH_HALT_DELAY, .clkr = { .enable_reg = 0x68204, .enable_mask = BIT(0), @@ -3413,6 +3416,7 @@ static struct clk_branch gcc_ubi0_nc_axi_clk = {
static struct clk_branch gcc_ubi0_core_clk = { .halt_reg = 0x68210, + .halt_check = BRANCH_HALT_DELAY, .clkr = { .enable_reg = 0x68210, .enable_mask = BIT(0), @@ -3430,6 +3434,7 @@ static struct clk_branch gcc_ubi0_core_clk = {
static struct clk_branch gcc_ubi0_mpt_clk = { .halt_reg = 0x68208, + .halt_check = BRANCH_HALT_DELAY, .clkr = { .enable_reg = 0x68208, .enable_mask = BIT(0), @@ -3447,6 +3452,7 @@ static struct clk_branch gcc_ubi0_mpt_clk = {
static struct clk_branch gcc_ubi1_ahb_clk = { .halt_reg = 0x6822c, + .halt_check = BRANCH_HALT_DELAY, .clkr = { .enable_reg = 0x6822c, .enable_mask = BIT(0), @@ -3464,6 +3470,7 @@ static struct clk_branch gcc_ubi1_ahb_clk = {
static struct clk_branch gcc_ubi1_axi_clk = { .halt_reg = 0x68220, + .halt_check = BRANCH_HALT_DELAY, .clkr = { .enable_reg = 0x68220, .enable_mask = BIT(0), @@ -3481,6 +3488,7 @@ static struct clk_branch gcc_ubi1_axi_clk = {
static struct clk_branch gcc_ubi1_nc_axi_clk = { .halt_reg = 0x68224, + .halt_check = BRANCH_HALT_DELAY, .clkr = { .enable_reg = 0x68224, .enable_mask = BIT(0), @@ -3498,6 +3506,7 @@ static struct clk_branch gcc_ubi1_nc_axi_clk = {
static struct clk_branch gcc_ubi1_core_clk = { .halt_reg = 0x68230, + .halt_check = BRANCH_HALT_DELAY, .clkr = { .enable_reg = 0x68230, .enable_mask = BIT(0), @@ -3515,6 +3524,7 @@ static struct clk_branch gcc_ubi1_core_clk = {
static struct clk_branch gcc_ubi1_mpt_clk = { .halt_reg = 0x68228, + .halt_check = BRANCH_HALT_DELAY, .clkr = { .enable_reg = 0x68228, .enable_mask = BIT(0),
From: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com
[ Upstream commit df6407782964dc7e35ad84230abb38f46314b245 ]
The bus sdw_drv_remove() and sdw_drv_shutdown() helpers are used conditionally, if the driver provides these routines.
These helpers already test if the driver provides a .remove or .shutdown callback, so there's no harm in invoking the sdw_drv_remove() and sdw_drv_shutdown() unconditionally.
In addition, the current code is imbalanced with dev_pm_domain_attach() called from sdw_drv_probe(), but dev_pm_domain_detach() called from sdw_drv_remove() only if the driver provides a .remove callback.
Fixes: 9251345dca24b ("soundwire: Add SoundWire bus type") Signed-off-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com Reviewed-by: Rander Wang rander.wang@intel.com Signed-off-by: Bard Liao yung-chuan.liao@linux.intel.com Link: https://lore.kernel.org/r/20220610015105.25987-1-yung-chuan.liao@linux.intel... Signed-off-by: Vinod Koul vkoul@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/soundwire/bus_type.c | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-)
diff --git a/drivers/soundwire/bus_type.c b/drivers/soundwire/bus_type.c index 283b2832728e..414621f3c43c 100644 --- a/drivers/soundwire/bus_type.c +++ b/drivers/soundwire/bus_type.c @@ -154,12 +154,8 @@ int __sdw_register_driver(struct sdw_driver *drv, struct module *owner)
drv->driver.owner = owner; drv->driver.probe = sdw_drv_probe; - - if (drv->remove) - drv->driver.remove = sdw_drv_remove; - - if (drv->shutdown) - drv->driver.shutdown = sdw_drv_shutdown; + drv->driver.remove = sdw_drv_remove; + drv->driver.shutdown = sdw_drv_shutdown;
return driver_register(&drv->driver); }
From: Duoming Zhou duoming@zju.edu.cn
[ Upstream commit 6a0c054930d554ad8f8044ef1fc856d9da391c81 ]
There are sleep in atomic context bugs when dm_fsync_timer_callback is executing. The root cause is that the memory allocation functions with GFP_KERNEL or GFP_NOIO parameters are called in dm_fsync_timer_callback which is a timer handler. The call paths that could trigger bugs are shown below:
(interrupt context) dm_fsync_timer_callback write_nic_byte kzalloc(sizeof(data), GFP_KERNEL); //may sleep usb_control_msg kmalloc(.., GFP_NOIO); //may sleep write_nic_dword kzalloc(sizeof(data), GFP_KERNEL); //may sleep usb_control_msg kmalloc(.., GFP_NOIO); //may sleep
This patch uses delayed work to replace timer and moves the operations that may sleep into the delayed work in order to mitigate bugs.
Fixes: 8fc8598e61f6 ("Staging: Added Realtek rtl8192u driver to staging") Signed-off-by: Duoming Zhou duoming@zju.edu.cn Link: https://lore.kernel.org/r/20220710103002.63283-1-duoming@zju.edu.cn Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/staging/rtl8192u/r8192U.h | 2 +- drivers/staging/rtl8192u/r8192U_dm.c | 38 +++++++++++++--------------- drivers/staging/rtl8192u/r8192U_dm.h | 2 +- 3 files changed, 20 insertions(+), 22 deletions(-)
diff --git a/drivers/staging/rtl8192u/r8192U.h b/drivers/staging/rtl8192u/r8192U.h index 94a148994069..2c3b33304173 100644 --- a/drivers/staging/rtl8192u/r8192U.h +++ b/drivers/staging/rtl8192u/r8192U.h @@ -1000,7 +1000,7 @@ typedef struct r8192_priv { bool bis_any_nonbepkts; bool bcurrent_turbo_EDCA; bool bis_cur_rdlstate; - struct timer_list fsync_timer; + struct delayed_work fsync_work; bool bfsync_processing; /* 500ms Fsync timer is active or not */ u32 rate_record; u32 rateCountDiffRecord; diff --git a/drivers/staging/rtl8192u/r8192U_dm.c b/drivers/staging/rtl8192u/r8192U_dm.c index 5fb5f583f703..c24a29189545 100644 --- a/drivers/staging/rtl8192u/r8192U_dm.c +++ b/drivers/staging/rtl8192u/r8192U_dm.c @@ -2627,19 +2627,20 @@ static void dm_init_fsync(struct net_device *dev) priv->ieee80211->fsync_seconddiff_ratethreshold = 200; priv->ieee80211->fsync_state = Default_Fsync; priv->framesyncMonitor = 1; /* current default 0xc38 monitor on */ - timer_setup(&priv->fsync_timer, dm_fsync_timer_callback, 0); + INIT_DELAYED_WORK(&priv->fsync_work, dm_fsync_work_callback); }
static void dm_deInit_fsync(struct net_device *dev) { struct r8192_priv *priv = ieee80211_priv(dev);
- del_timer_sync(&priv->fsync_timer); + cancel_delayed_work_sync(&priv->fsync_work); }
-void dm_fsync_timer_callback(struct timer_list *t) +void dm_fsync_work_callback(struct work_struct *work) { - struct r8192_priv *priv = from_timer(priv, t, fsync_timer); + struct r8192_priv *priv = + container_of(work, struct r8192_priv, fsync_work.work); struct net_device *dev = priv->ieee80211->dev; u32 rate_index, rate_count = 0, rate_count_diff = 0; bool bSwitchFromCountDiff = false; @@ -2706,17 +2707,16 @@ void dm_fsync_timer_callback(struct timer_list *t) } } if (bDoubleTimeInterval) { - if (timer_pending(&priv->fsync_timer)) - del_timer_sync(&priv->fsync_timer); - priv->fsync_timer.expires = jiffies + - msecs_to_jiffies(priv->ieee80211->fsync_time_interval*priv->ieee80211->fsync_multiple_timeinterval); - add_timer(&priv->fsync_timer); + cancel_delayed_work_sync(&priv->fsync_work); + schedule_delayed_work(&priv->fsync_work, + msecs_to_jiffies(priv + ->ieee80211->fsync_time_interval * + priv->ieee80211->fsync_multiple_timeinterval)); } else { - if (timer_pending(&priv->fsync_timer)) - del_timer_sync(&priv->fsync_timer); - priv->fsync_timer.expires = jiffies + - msecs_to_jiffies(priv->ieee80211->fsync_time_interval); - add_timer(&priv->fsync_timer); + cancel_delayed_work_sync(&priv->fsync_work); + schedule_delayed_work(&priv->fsync_work, + msecs_to_jiffies(priv + ->ieee80211->fsync_time_interval)); } } else { /* Let Register return to default value; */ @@ -2744,7 +2744,7 @@ static void dm_EndSWFsync(struct net_device *dev) struct r8192_priv *priv = ieee80211_priv(dev);
RT_TRACE(COMP_HALDM, "%s\n", __func__); - del_timer_sync(&(priv->fsync_timer)); + cancel_delayed_work_sync(&priv->fsync_work);
/* Let Register return to default value; */ if (priv->bswitch_fsync) { @@ -2786,11 +2786,9 @@ static void dm_StartSWFsync(struct net_device *dev) if (priv->ieee80211->fsync_rate_bitmap & rateBitmap) priv->rate_record += priv->stats.received_rate_histogram[1][rateIndex]; } - if (timer_pending(&priv->fsync_timer)) - del_timer_sync(&priv->fsync_timer); - priv->fsync_timer.expires = jiffies + - msecs_to_jiffies(priv->ieee80211->fsync_time_interval); - add_timer(&priv->fsync_timer); + cancel_delayed_work_sync(&priv->fsync_work); + schedule_delayed_work(&priv->fsync_work, + msecs_to_jiffies(priv->ieee80211->fsync_time_interval));
write_nic_dword(dev, rOFDM0_RxDetector2, 0x465c12cd);
diff --git a/drivers/staging/rtl8192u/r8192U_dm.h b/drivers/staging/rtl8192u/r8192U_dm.h index 0de0332906bd..eeb03130de15 100644 --- a/drivers/staging/rtl8192u/r8192U_dm.h +++ b/drivers/staging/rtl8192u/r8192U_dm.h @@ -167,7 +167,7 @@ void dm_force_tx_fw_info(struct net_device *dev, void dm_init_edca_turbo(struct net_device *dev); void dm_rf_operation_test_callback(unsigned long data); void dm_rf_pathcheck_workitemcallback(struct work_struct *work); -void dm_fsync_timer_callback(struct timer_list *t); +void dm_fsync_work_callback(struct work_struct *work); void dm_cck_txpower_adjust(struct net_device *dev, bool binch14); void dm_shadow_init(struct net_device *dev); void dm_initialize_txpower_tracking(struct net_device *dev);
From: Miaoqian Lin linmq006@gmail.com
[ Upstream commit b5899a3e2f783a27b268e38d37f9b24c71bddf45 ]
of_find_matching_node() returns a node pointer with refcount incremented, we should use of_node_put() on it when not need anymore. Add missing of_node_put() to avoid refcount leak. of_node_put() checks null pointer.
Fixes: ea35645a3c66 ("mmc: sdhci-of-esdhc: add support for signal voltage switch") Signed-off-by: Miaoqian Lin linmq006@gmail.com Link: https://lore.kernel.org/r/20220523144255.10310-1-linmq006@gmail.com Signed-off-by: Ulf Hansson ulf.hansson@linaro.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/mmc/host/sdhci-of-esdhc.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/mmc/host/sdhci-of-esdhc.c b/drivers/mmc/host/sdhci-of-esdhc.c index d6cb0f9a3488..77ae23077f56 100644 --- a/drivers/mmc/host/sdhci-of-esdhc.c +++ b/drivers/mmc/host/sdhci-of-esdhc.c @@ -704,6 +704,7 @@ static int esdhc_signal_voltage_switch(struct mmc_host *mmc, scfg_node = of_find_matching_node(NULL, scfg_device_ids); if (scfg_node) scfg_base = of_iomap(scfg_node, 0); + of_node_put(scfg_node); if (scfg_base) { sdhciovselcr = SDHCIOVSELCR_TGLEN | SDHCIOVSELCR_VSELVAL;
From: Christophe JAILLET christophe.jaillet@wanadoo.fr
[ Upstream commit 2e531bc3e0d86362fcd8a577b3278d9ef3cc2ba0 ]
Some functions of the bitmap API take advantage of the fact that a bitmap is an array of long.
So, to make sure this assertion is correct, allocate bitmaps with bitmap_zalloc() instead of kzalloc()+hand-computed number of bytes.
While at it, also use bitmap_free() instead of kfree() to keep the semantic.
Fixes: 0ab30494bc4f ("memstick: add support for legacy memorysticks") Signed-off-by: Christophe JAILLET christophe.jaillet@wanadoo.fr Link: https://lore.kernel.org/r/dbf633c48c24ae6d95f852557e8d8b3bbdef65fe.165615571... Signed-off-by: Ulf Hansson ulf.hansson@linaro.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/memstick/core/ms_block.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/drivers/memstick/core/ms_block.c b/drivers/memstick/core/ms_block.c index 7aab26128f6d..0874fa882649 100644 --- a/drivers/memstick/core/ms_block.c +++ b/drivers/memstick/core/ms_block.c @@ -1339,17 +1339,17 @@ static int msb_ftl_initialize(struct msb_data *msb) msb->zone_count = msb->block_count / MS_BLOCKS_IN_ZONE; msb->logical_block_count = msb->zone_count * 496 - 2;
- msb->used_blocks_bitmap = kzalloc(msb->block_count / 8, GFP_KERNEL); - msb->erased_blocks_bitmap = kzalloc(msb->block_count / 8, GFP_KERNEL); + msb->used_blocks_bitmap = bitmap_zalloc(msb->block_count, GFP_KERNEL); + msb->erased_blocks_bitmap = bitmap_zalloc(msb->block_count, GFP_KERNEL); msb->lba_to_pba_table = kmalloc_array(msb->logical_block_count, sizeof(u16), GFP_KERNEL);
if (!msb->used_blocks_bitmap || !msb->lba_to_pba_table || !msb->erased_blocks_bitmap) { - kfree(msb->used_blocks_bitmap); + bitmap_free(msb->used_blocks_bitmap); + bitmap_free(msb->erased_blocks_bitmap); kfree(msb->lba_to_pba_table); - kfree(msb->erased_blocks_bitmap); return -ENOMEM; }
@@ -1961,7 +1961,7 @@ static int msb_bd_open(struct block_device *bdev, fmode_t mode) static void msb_data_clear(struct msb_data *msb) { kfree(msb->boot_page); - kfree(msb->used_blocks_bitmap); + bitmap_free(msb->used_blocks_bitmap); kfree(msb->lba_to_pba_table); kfree(msb->cache); msb->card = NULL;
From: Christophe JAILLET christophe.jaillet@wanadoo.fr
[ Upstream commit 54eb7a55be6779c4d0c25eaf5056498a28595049 ]
'erased_blocks_bitmap' is never freed. As it is allocated at the same time as 'used_blocks_bitmap', it is likely that it should be freed also at the same time.
Add the corresponding bitmap_free() in msb_data_clear().
Fixes: 0ab30494bc4f ("memstick: add support for legacy memorysticks") Signed-off-by: Christophe JAILLET christophe.jaillet@wanadoo.fr Link: https://lore.kernel.org/r/b3b78926569445962ea5c3b6e9102418a9effb88.165615571... Signed-off-by: Ulf Hansson ulf.hansson@linaro.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/memstick/core/ms_block.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/memstick/core/ms_block.c b/drivers/memstick/core/ms_block.c index 0874fa882649..addf76a8d1b0 100644 --- a/drivers/memstick/core/ms_block.c +++ b/drivers/memstick/core/ms_block.c @@ -1962,6 +1962,7 @@ static void msb_data_clear(struct msb_data *msb) { kfree(msb->boot_page); bitmap_free(msb->used_blocks_bitmap); + bitmap_free(msb->erased_blocks_bitmap); kfree(msb->lba_to_pba_table); kfree(msb->cache); msb->card = NULL;
From: Eugen Hristev eugen.hristev@microchip.com
[ Upstream commit 5987e6ded29d52e42fc7b06aa575c60a25eee38e ]
In set_uhs_signaling, the DDR bit is being set by fully writing the MC1R register. This can lead to accidental erase of certain bits in this register. Avoid this by doing a read-modify-write operation.
Fixes: d0918764c17b ("mmc: sdhci-of-at91: fix MMC_DDR_52 timing selection") Signed-off-by: Eugen Hristev eugen.hristev@microchip.com Tested-by: Karl Olsen karl@micro-technic.com Acked-by: Adrian Hunter adrian.hunter@intel.com Link: https://lore.kernel.org/r/20220630090926.15061-1-eugen.hristev@microchip.com Signed-off-by: Ulf Hansson ulf.hansson@linaro.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/mmc/host/sdhci-of-at91.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/drivers/mmc/host/sdhci-of-at91.c b/drivers/mmc/host/sdhci-of-at91.c index 8cd1794768ba..70ce977cfeec 100644 --- a/drivers/mmc/host/sdhci-of-at91.c +++ b/drivers/mmc/host/sdhci-of-at91.c @@ -117,8 +117,13 @@ static void sdhci_at91_set_power(struct sdhci_host *host, unsigned char mode, static void sdhci_at91_set_uhs_signaling(struct sdhci_host *host, unsigned int timing) { - if (timing == MMC_TIMING_MMC_DDR52) - sdhci_writeb(host, SDMMC_MC1R_DDR, SDMMC_MC1R); + u8 mc1r; + + if (timing == MMC_TIMING_MMC_DDR52) { + mc1r = sdhci_readb(host, SDMMC_MC1R); + mc1r |= SDMMC_MC1R_DDR; + sdhci_writeb(host, mc1r, SDMMC_MC1R); + } sdhci_set_uhs_signaling(host, timing); }
From: Stefan Roese sr@denx.de
[ Upstream commit 8795e182b02dc87e343c79e73af6b8b7f9c5e635 ]
AER reporting is currently disabled in the DevCtl registers of all non Root Port PCIe devices on systems using pcie_ports_native || host->native_aer, disabling AER completely in such systems. This is because 2bd50dd800b5 ("PCI: PCIe: Disable PCIe port services during port initialization"), added a call to pci_disable_pcie_error_reporting() *after* the AER setup was completed for the PCIe device tree.
Here a longer analysis about the current status of AER enabling / disabling upon bootup provided by Bjorn:
pcie_portdrv_probe pcie_port_device_register get_port_device_capability pci_disable_pcie_error_reporting clear CERE NFERE FERE URRE # <-- disable for RP USP DSP pcie_device_init device_register # new AER service device aer_probe aer_enable_rootport # RP only set_downstream_devices_error_reporting set_device_error_reporting # self (RP) if (RP || USP || DSP) pci_enable_pcie_error_reporting set CERE NFERE FERE URRE # <-- enable for RP pci_walk_bus set_device_error_reporting if (RP || USP || DSP) pci_enable_pcie_error_reporting set CERE NFERE FERE URRE # <-- enable for USP DSP
In a typical Root Port -> Endpoint hierarchy, the above: - Disables Error Reporting for the Root Port, - Enables Error Reporting for the Root Port, - Does NOT enable Error Reporting for the Endpoint because it is not a Root Port or Switch Port.
In a deeper Root Port -> Upstream Switch Port -> Downstream Switch Port -> Endpoint hierarchy: - Disables Error Reporting for the Root Port, - Enables Error Reporting for the Root Port, - Enables Error Reporting for both Switch Ports, - Does NOT enable Error Reporting for the Endpoint because it is not a Root Port or Switch Port, - Disables Error Reporting for the Switch Ports when pcie_portdrv_probe() claims them. AER does not re-enable it because these are not Root Ports.
Remove this call to pci_disable_pcie_error_reporting() from get_port_device_capability(), leaving the already enabled AER configuration intact. With this change, AER is enabled in the Root Port and the PCIe switch upstream and downstream ports. Only the PCIe Endpoints don't have AER enabled yet. A follow-up patch will take care of this Endpoint enabling.
Fixes: 2bd50dd800b5 ("PCI: PCIe: Disable PCIe port services during port initialization") Link: https://lore.kernel.org/r/20220125071820.2247260-3-sr@denx.de Signed-off-by: Stefan Roese sr@denx.de Signed-off-by: Bjorn Helgaas bhelgaas@google.com Reviewed-by: Pali Rohár pali@kernel.org Cc: Rafael J. Wysocki rjw@rjwysocki.net Cc: Bharat Kumar Gogada bharat.kumar.gogada@xilinx.com Cc: Michal Simek michal.simek@xilinx.com Cc: Yao Hongbo yaohongbo@linux.alibaba.com Cc: Naveen Naidu naveennaidu479@gmail.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/pci/pcie/portdrv_core.c | 9 +-------- 1 file changed, 1 insertion(+), 8 deletions(-)
diff --git a/drivers/pci/pcie/portdrv_core.c b/drivers/pci/pcie/portdrv_core.c index 7c37d815229e..216dd6e61624 100644 --- a/drivers/pci/pcie/portdrv_core.c +++ b/drivers/pci/pcie/portdrv_core.c @@ -218,15 +218,8 @@ static int get_port_device_capability(struct pci_dev *dev)
#ifdef CONFIG_PCIEAER if (dev->aer_cap && pci_aer_available() && - (pcie_ports_native || host->native_aer)) { + (pcie_ports_native || host->native_aer)) services |= PCIE_PORT_SERVICE_AER; - - /* - * Disable AER on this port in case it's been enabled by the - * BIOS (the AER service driver will enable it when necessary). - */ - pci_disable_pcie_error_reporting(dev); - } #endif
/*
From: Mahesh Rajashekhara Mahesh.Rajashekhara@microchip.com
[ Upstream commit 69695aeaa6621bc49cdd7a8e5a8d1042461e496e ]
Correct a SOP READ and WRITE DMA flags for some requests.
This update corrects DMA direction issues with SCSI commands removed from the controller's internal lookup table.
Currently, SCSI READ BLOCK LIMITS (0x5) was removed from the controller lookup table and exposed a DMA direction flag issue.
SCSI READ BLOCK LIMITS was recently removed from our controller lookup table so the controller uses the respective IU flag field to set the DMA data direction. Since the DMA direction is incorrect the FW never completes the request causing a hang.
Some SCSI commands which use SCSI READ BLOCK LIMITS
* sg_map * mt -f /dev/stX status
After updating controller firmware, users may notice their tape units failing. This patch resolves the issue.
Also, the AIO path DMA direction is correct.
The DMA direction flag is a day-one bug with no reported BZ.
Fixes: 6c223761eb54 ("smartpqi: initial commit of Microsemi smartpqi driver") Link: https://lore.kernel.org/r/165730605618.177165.9054223644512926624.stgit@brun... Reviewed-by: Scott Benesh scott.benesh@microchip.com Reviewed-by: Scott Teel scott.teel@microchip.com Reviewed-by: Mike McGowen mike.mcgowen@microchip.com Reviewed-by: Kevin Barnett kevin.barnett@microchip.com Signed-off-by: Mahesh Rajashekhara Mahesh.Rajashekhara@microchip.com Signed-off-by: Don Brace don.brace@microchip.com Signed-off-by: Martin K. Petersen martin.petersen@oracle.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/scsi/smartpqi/smartpqi_init.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/scsi/smartpqi/smartpqi_init.c b/drivers/scsi/smartpqi/smartpqi_init.c index 98f2d076f938..b86cc0342ae3 100644 --- a/drivers/scsi/smartpqi/smartpqi_init.c +++ b/drivers/scsi/smartpqi/smartpqi_init.c @@ -4638,10 +4638,10 @@ static int pqi_raid_submit_scsi_cmd_with_io_request( }
switch (scmd->sc_data_direction) { - case DMA_TO_DEVICE: + case DMA_FROM_DEVICE: request->data_direction = SOP_READ_FLAG; break; - case DMA_FROM_DEVICE: + case DMA_TO_DEVICE: request->data_direction = SOP_WRITE_FLAG; break; case DMA_NONE:
From: Randy Dunlap rdunlap@infradead.org
[ Upstream commit 8097cf2fb3b2205257f1c76f4808e3398d66b6d9 ]
USB_AMD5536UDC should depend on HAS_DMA since it selects USB_SNP_CORE, which depends on HAS_DMA and since 'select' does not follow any dependency chains.
Fixes this kconfig warning:
WARNING: unmet direct dependencies detected for USB_SNP_CORE Depends on [n]: USB_SUPPORT [=y] && USB_GADGET [=y] && (USB_AMD5536UDC [=y] || USB_SNP_UDC_PLAT [=n]) && HAS_DMA [=n] Selected by [y]: - USB_AMD5536UDC [=y] && USB_SUPPORT [=y] && USB_GADGET [=y] && USB_PCI [=y]
Fixes: 97b3ffa233b9 ("usb: gadget: udc: amd5536: split core and PCI layer") Cc: Raviteja Garimella raviteja.garimella@broadcom.com Cc: Felipe Balbi balbi@kernel.org Cc: linux-usb@vger.kernel.org Cc: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Randy Dunlap rdunlap@infradead.org Link: https://lore.kernel.org/r/20220709013601.7536-1-rdunlap@infradead.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/usb/gadget/udc/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/usb/gadget/udc/Kconfig b/drivers/usb/gadget/udc/Kconfig index d83d93c6ef9e..33b5648b2819 100644 --- a/drivers/usb/gadget/udc/Kconfig +++ b/drivers/usb/gadget/udc/Kconfig @@ -309,7 +309,7 @@ source "drivers/usb/gadget/udc/bdc/Kconfig"
config USB_AMD5536UDC tristate "AMD5536 UDC" - depends on USB_PCI + depends on USB_PCI && HAS_DMA select USB_SNP_CORE help The AMD5536 UDC is part of the AMD Geode CS5536, an x86 southbridge.
From: Jianglei Nie niejianglei2021@163.com
[ Upstream commit aa2a1df3a2c85f855af7d54466ac10bd48645d63 ]
setup_base_ctxt() allocates a memory chunk for uctxt->groups with hfi1_alloc_ctxt_rcv_groups(). When init_user_ctxt() fails, uctxt->groups is not released, which will lead to a memory leak.
We should release the uctxt->groups with hfi1_free_ctxt_rcv_groups() when init_user_ctxt() fails.
Fixes: e87473bc1b6c ("IB/hfi1: Only set fd pointer when base context is completely initialized") Link: https://lore.kernel.org/r/20220711070718.2318320-1-niejianglei2021@163.com Signed-off-by: Jianglei Nie niejianglei2021@163.com Acked-by: Dennis Dalessandro dennis.dalessandro@cornelisnetworks.com Signed-off-by: Leon Romanovsky leon@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/infiniband/hw/hfi1/file_ops.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/infiniband/hw/hfi1/file_ops.c b/drivers/infiniband/hw/hfi1/file_ops.c index 64ee11542a56..be31faf6cc62 100644 --- a/drivers/infiniband/hw/hfi1/file_ops.c +++ b/drivers/infiniband/hw/hfi1/file_ops.c @@ -1222,8 +1222,10 @@ static int setup_base_ctxt(struct hfi1_filedata *fd, goto done;
ret = init_user_ctxt(fd, uctxt); - if (ret) + if (ret) { + hfi1_free_ctxt_rcv_groups(uctxt); goto done; + }
user_init(uctxt);
From: Liang He windhl@126.com
[ Upstream commit 5d07a692f9562f9c06e62cce369e9dd108173a0f ]
We should use of_node_get() when a new reference of device_node is created. It is noted that the old reference stored in 'mm_gc->gc.of_node' should also be decreased.
This patch is based on the fact that there is a call site in function 'qe_add_gpiochips()' of src file 'drivers\soc\fsl\qe\gpio.c'. In this function, of_mm_gpiochip_add_data() is contained in an iteration of for_each_compatible_node() which will automatically increase and decrease the refcount. So we need additional of_node_get() for the reference escape in of_mm_gpiochip_add_data().
Fixes: a19e3da5bc5f ("of/gpio: Kill of_gpio_chip and add members directly to gpio_chip") Signed-off-by: Liang He windhl@126.com Signed-off-by: Bartosz Golaszewski brgl@bgdev.pl Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpio/gpiolib-of.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/gpio/gpiolib-of.c b/drivers/gpio/gpiolib-of.c index 09999e3e3109..7bda0f59c109 100644 --- a/drivers/gpio/gpiolib-of.c +++ b/drivers/gpio/gpiolib-of.c @@ -476,7 +476,8 @@ int of_mm_gpiochip_add_data(struct device_node *np, if (mm_gc->save_regs) mm_gc->save_regs(mm_gc);
- mm_gc->gc.of_node = np; + of_node_put(mm_gc->gc.of_node); + mm_gc->gc.of_node = of_node_get(np);
ret = gpiochip_add_data(gc, data); if (ret) @@ -484,6 +485,7 @@ int of_mm_gpiochip_add_data(struct device_node *np,
return 0; err2: + of_node_put(np); iounmap(mm_gc->regs); err1: kfree(gc->label);
From: Liang He windhl@126.com
[ Upstream commit 19bbb49acf8d7a03cb83e05624363741a4c3ec6f ]
In octeon_mmc_probe(), we should call of_node_put() when breaking out of for_each_child_of_node() which has increased and decreased the refcount during each iteration.
Fixes: 01d95843335c ("mmc: cavium: Add MMC support for Octeon SOCs.") Signed-off-by: Liang He windhl@126.com Acked-by: Robert Richter rric@kernel.org Link: https://lore.kernel.org/r/20220719095216.1241601-1-windhl@126.com Signed-off-by: Ulf Hansson ulf.hansson@linaro.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/mmc/host/cavium-octeon.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/mmc/host/cavium-octeon.c b/drivers/mmc/host/cavium-octeon.c index 22aded1065ae..2245452a44c8 100644 --- a/drivers/mmc/host/cavium-octeon.c +++ b/drivers/mmc/host/cavium-octeon.c @@ -288,6 +288,7 @@ static int octeon_mmc_probe(struct platform_device *pdev) if (ret) { dev_err(&pdev->dev, "Error populating slots\n"); octeon_mmc_set_shared_power(host, 0); + of_node_put(cn); goto error; } i++;
From: Liang He windhl@126.com
[ Upstream commit 7ee480795e41db314f2c445c65ed854a5d6e8e32 ]
In thunder_mmc_probe(), we should call of_node_put() when breaking out of for_each_child_of_node() which has increased and decreased the refcount during each iteration.
Fixes: 166bac38c3c5 ("mmc: cavium: Add MMC PCI driver for ThunderX SOCs") Signed-off-by: Liang He windhl@126.com Acked-by: Robert Richter rric@kernel.org Link: https://lore.kernel.org/r/20220719095216.1241601-2-windhl@126.com Signed-off-by: Ulf Hansson ulf.hansson@linaro.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/mmc/host/cavium-thunderx.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/mmc/host/cavium-thunderx.c b/drivers/mmc/host/cavium-thunderx.c index eee08d81b242..f79806e31e7e 100644 --- a/drivers/mmc/host/cavium-thunderx.c +++ b/drivers/mmc/host/cavium-thunderx.c @@ -138,8 +138,10 @@ static int thunder_mmc_probe(struct pci_dev *pdev, continue;
ret = cvm_mmc_of_slot_probe(&host->slot_pdev[i]->dev, host); - if (ret) + if (ret) { + of_node_put(child_node); goto error; + } } i++; }
From: Artem Borisov dedsa2002@gmail.com
[ Upstream commit 1117d182c5d72abd7eb8b7d5e7b8c3373181c3ab ]
U1_UNICORN_LEGACY id was added to the driver, but was not declared in the device id table, making it impossible to use.
Fixes: 640e403 ("HID: alps: Add AUI1657 device ID") Signed-off-by: Artem Borisov dedsa2002@gmail.com Signed-off-by: Jiri Kosina jkosina@suse.cz Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/hid/hid-alps.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/hid/hid-alps.c b/drivers/hid/hid-alps.c index 3eddd8f73b57..116ece4be2c9 100644 --- a/drivers/hid/hid-alps.c +++ b/drivers/hid/hid-alps.c @@ -835,6 +835,8 @@ static const struct hid_device_id alps_id[] = { USB_VENDOR_ID_ALPS_JP, HID_DEVICE_ID_ALPS_U1_DUAL) }, { HID_DEVICE(HID_BUS_ANY, HID_GROUP_ANY, USB_VENDOR_ID_ALPS_JP, HID_DEVICE_ID_ALPS_U1) }, + { HID_DEVICE(HID_BUS_ANY, HID_GROUP_ANY, + USB_VENDOR_ID_ALPS_JP, HID_DEVICE_ID_ALPS_U1_UNICORN_LEGACY) }, { HID_DEVICE(HID_BUS_ANY, HID_GROUP_ANY, USB_VENDOR_ID_ALPS_JP, HID_DEVICE_ID_ALPS_T4_BTNLESS) }, { }
From: Johan Hovold johan@kernel.org
[ Upstream commit 688ee1d1785c1359f9040f615dd8e6054962bce2 ]
Fix up the tty-port initialized comments which got truncated and obfuscated when replacing the old ASYNCB_INITIALIZED flag.
Fixes: d41861ca19c9 ("tty: Replace ASYNC_INITIALIZED bit and update atomically") Reviewed-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Johan Hovold johan@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/usb/serial/sierra.c | 3 ++- drivers/usb/serial/usb-serial.c | 2 +- drivers/usb/serial/usb_wwan.c | 3 ++- 3 files changed, 5 insertions(+), 3 deletions(-)
diff --git a/drivers/usb/serial/sierra.c b/drivers/usb/serial/sierra.c index a43263a0edd8..891e52bc5002 100644 --- a/drivers/usb/serial/sierra.c +++ b/drivers/usb/serial/sierra.c @@ -757,7 +757,8 @@ static void sierra_close(struct usb_serial_port *port)
/* * Need to take susp_lock to make sure port is not already being - * resumed, but no need to hold it due to initialized + * resumed, but no need to hold it due to the tty-port initialized + * flag. */ spin_lock_irq(&intfdata->susp_lock); if (--intfdata->open_ports == 0) diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c index b1f0aa12ba39..eb4f20651186 100644 --- a/drivers/usb/serial/usb-serial.c +++ b/drivers/usb/serial/usb-serial.c @@ -251,7 +251,7 @@ static int serial_open(struct tty_struct *tty, struct file *filp) * * Shut down a USB serial port. Serialized against activate by the * tport mutex and kept to matching open/close pairs - * of calls by the initialized flag. + * of calls by the tty-port initialized flag. * * Not called if tty is console. */ diff --git a/drivers/usb/serial/usb_wwan.c b/drivers/usb/serial/usb_wwan.c index 997ff88ec04b..2ebf0842fa43 100644 --- a/drivers/usb/serial/usb_wwan.c +++ b/drivers/usb/serial/usb_wwan.c @@ -463,7 +463,8 @@ void usb_wwan_close(struct usb_serial_port *port)
/* * Need to take susp_lock to make sure port is not already being - * resumed, but no need to hold it due to initialized + * resumed, but no need to hold it due to the tty-port initialized + * flag. */ spin_lock_irq(&intfdata->susp_lock); if (--intfdata->open_ports == 0)
From: Dan Carpenter dan.carpenter@oracle.com
[ Upstream commit 40ec787e1adf302c11668d4cc69838f4d584187d ]
The call to:
size = simple_write_to_buffer(cmdbuf, sizeof(cmdbuf), ppos, buf, size);
will succeed if at least one byte is written to the "cmdbuf" buffer. The "*ppos" value controls which byte is written. Another problem is that this code does not check for errors so it's possible for the entire buffer to be uninitialized.
Inintialize the struct to zero to prevent reading uninitialized stack data.
Debugfs is normally only writable by root so the impact of this bug is very minimal.
Fixes: 6cca83d498bd ("Platform: OLPC: move debugfs support from x86 EC driver") Signed-off-by: Dan Carpenter dan.carpenter@oracle.com Link: https://lore.kernel.org/r/YthIKn+TfZSZMEcM@kili Reviewed-by: Hans de Goede hdegoede@redhat.com Signed-off-by: Hans de Goede hdegoede@redhat.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/platform/olpc/olpc-ec.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/platform/olpc/olpc-ec.c b/drivers/platform/olpc/olpc-ec.c index 374a8028fec7..b36a000ed969 100644 --- a/drivers/platform/olpc/olpc-ec.c +++ b/drivers/platform/olpc/olpc-ec.c @@ -170,7 +170,7 @@ static ssize_t ec_dbgfs_cmd_write(struct file *file, const char __user *buf, int i, m; unsigned char ec_cmd[EC_MAX_CMD_ARGS]; unsigned int ec_cmd_int[EC_MAX_CMD_ARGS]; - char cmdbuf[64]; + char cmdbuf[64] = ""; int ec_cmd_bytes;
mutex_lock(&ec_dbgfs_lock);
From: Miaohe Lin linmiaohe@huawei.com
[ Upstream commit 7f82f922319ede486540e8746769865b9508d2c2 ]
Since the beginning, charged is set to 0 to avoid calling vm_unacct_memory twice because vm_unacct_memory will be called by above unmap_region. But since commit 4f74d2c8e827 ("vm: remove 'nr_accounted' calculations from the unmap_vmas() interfaces"), unmap_region doesn't call vm_unacct_memory anymore. So charged shouldn't be set to 0 now otherwise the calling to paired vm_unacct_memory will be missed and leads to imbalanced account.
Link: https://lkml.kernel.org/r/20220618082027.43391-1-linmiaohe@huawei.com Fixes: 4f74d2c8e827 ("vm: remove 'nr_accounted' calculations from the unmap_vmas() interfaces") Signed-off-by: Miaohe Lin linmiaohe@huawei.com Signed-off-by: Andrew Morton akpm@linux-foundation.org Signed-off-by: Sasha Levin sashal@kernel.org --- mm/mmap.c | 1 - 1 file changed, 1 deletion(-)
diff --git a/mm/mmap.c b/mm/mmap.c index bb8ba3258945..590840c3a3b5 100644 --- a/mm/mmap.c +++ b/mm/mmap.c @@ -1821,7 +1821,6 @@ unsigned long mmap_region(struct file *file, unsigned long addr,
/* Undo any partial mapping done by a device driver. */ unmap_region(mm, vma, prev, vma->vm_start, vma->vm_end); - charged = 0; if (vm_flags & VM_SHARED) mapping_unmap_writable(file->f_mapping); allow_write_and_free_vma:
From: Zhu Yanjun yanjun.zhu@linux.dev
[ Upstream commit fd5382c5805c4bcb50fd25b7246247d3f7114733 ]
In the function rxe_create_qp(), rxe_qp_from_init() is called to initialize qp, internally things like the spin locks are not setup until rxe_qp_init_req().
If an error occures before this point then the unwind will call rxe_cleanup() and eventually to rxe_qp_do_cleanup()/rxe_cleanup_task() which will oops when trying to access the uninitialized spinlock.
Move the spinlock initializations earlier before any failures.
Fixes: 8700e3e7c485 ("Soft RoCE driver") Link: https://lore.kernel.org/r/20220731063621.298405-1-yanjun.zhu@linux.dev Reported-by: syzbot+833061116fa28df97f3b@syzkaller.appspotmail.com Signed-off-by: Zhu Yanjun yanjun.zhu@linux.dev Signed-off-by: Jason Gunthorpe jgg@nvidia.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/infiniband/sw/rxe/rxe_qp.c | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-)
diff --git a/drivers/infiniband/sw/rxe/rxe_qp.c b/drivers/infiniband/sw/rxe/rxe_qp.c index 4798b718b085..a4b5374deac8 100644 --- a/drivers/infiniband/sw/rxe/rxe_qp.c +++ b/drivers/infiniband/sw/rxe/rxe_qp.c @@ -210,6 +210,14 @@ static void rxe_qp_init_misc(struct rxe_dev *rxe, struct rxe_qp *qp, spin_lock_init(&qp->grp_lock); spin_lock_init(&qp->state_lock);
+ spin_lock_init(&qp->req.task.state_lock); + spin_lock_init(&qp->resp.task.state_lock); + spin_lock_init(&qp->comp.task.state_lock); + + spin_lock_init(&qp->sq.sq_lock); + spin_lock_init(&qp->rq.producer_lock); + spin_lock_init(&qp->rq.consumer_lock); + atomic_set(&qp->ssn, 0); atomic_set(&qp->skb_out, 0); } @@ -258,7 +266,6 @@ static int rxe_qp_init_req(struct rxe_dev *rxe, struct rxe_qp *qp, qp->req.opcode = -1; qp->comp.opcode = -1;
- spin_lock_init(&qp->sq.sq_lock); skb_queue_head_init(&qp->req_pkts);
rxe_init_task(rxe, &qp->req.task, qp, @@ -308,9 +315,6 @@ static int rxe_qp_init_resp(struct rxe_dev *rxe, struct rxe_qp *qp, } }
- spin_lock_init(&qp->rq.producer_lock); - spin_lock_init(&qp->rq.consumer_lock); - skb_queue_head_init(&qp->resp_pkts);
rxe_init_task(rxe, &qp->resp.task, qp,
From: Dan Carpenter dan.carpenter@oracle.com
[ Upstream commit ee452a8d984f94fa8e894f003a52e776e4572881 ]
There needs to be some error checking if ida_simple_get() fails. Also call ida_free() if there are errors later.
Fixes: 94bc02e30fb8 ("nullb: use ida to manage index") Signed-off-by: Dan Carpenter dan.carpenter@oracle.com Link: https://lore.kernel.org/r/YtEhXsr6vJeoiYhd@kili Signed-off-by: Jens Axboe axboe@kernel.dk Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/block/null_blk_main.c | 14 +++++++++++--- 1 file changed, 11 insertions(+), 3 deletions(-)
diff --git a/drivers/block/null_blk_main.c b/drivers/block/null_blk_main.c index 4fef1fb918ec..5553df736c72 100644 --- a/drivers/block/null_blk_main.c +++ b/drivers/block/null_blk_main.c @@ -1819,8 +1819,13 @@ static int null_add_dev(struct nullb_device *dev) blk_queue_flag_clear(QUEUE_FLAG_ADD_RANDOM, nullb->q);
mutex_lock(&lock); - nullb->index = ida_simple_get(&nullb_indexes, 0, 0, GFP_KERNEL); - dev->index = nullb->index; + rv = ida_simple_get(&nullb_indexes, 0, 0, GFP_KERNEL); + if (rv < 0) { + mutex_unlock(&lock); + goto out_cleanup_zone; + } + nullb->index = rv; + dev->index = rv; mutex_unlock(&lock);
blk_queue_logical_block_size(nullb->q, dev->blocksize); @@ -1832,13 +1837,16 @@ static int null_add_dev(struct nullb_device *dev)
rv = null_gendisk_register(nullb); if (rv) - goto out_cleanup_zone; + goto out_ida_free;
mutex_lock(&lock); list_add_tail(&nullb->list, &nullb_list); mutex_unlock(&lock);
return 0; + +out_ida_free: + ida_free(&nullb_indexes, nullb->index); out_cleanup_zone: if (dev->zoned) null_zone_exit(dev);
From: Li Lingfeng lilingfeng3@huawei.com
[ Upstream commit 07ea7a617d6b278fb7acedb5cbe1a81ce2de7d0c ]
When migrating to extents, the checksum seed of temporary inode need to be replaced by inode's, otherwise the inode checksums will be incorrect when swapping the inodes data.
However, the temporary inode can not match it's checksum to itself since it has lost it's own checksum seed.
mkfs.ext4 -F /dev/sdc mount /dev/sdc /mnt/sdc xfs_io -fc "pwrite 4k 4k" -c "fsync" /mnt/sdc/testfile chattr -e /mnt/sdc/testfile chattr +e /mnt/sdc/testfile umount /dev/sdc fsck -fn /dev/sdc
======== ... Pass 1: Checking inodes, blocks, and sizes Inode 13 passes checks, but checksum does not match inode. Fix? no ... ========
The fix is simple, save the checksum seed of temporary inode, and recover it after migrating to extents.
Fixes: e81c9302a6c3 ("ext4: set csum seed in tmp inode while migrating to extents") Signed-off-by: Li Lingfeng lilingfeng3@huawei.com Reviewed-by: Jan Kara jack@suse.cz Link: https://lore.kernel.org/r/20220617062515.2113438-1-lilingfeng3@huawei.com Signed-off-by: Theodore Ts'o tytso@mit.edu Signed-off-by: Sasha Levin sashal@kernel.org --- fs/ext4/migrate.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/fs/ext4/migrate.c b/fs/ext4/migrate.c index 9adfe217b39d..37ce665ae1d2 100644 --- a/fs/ext4/migrate.c +++ b/fs/ext4/migrate.c @@ -435,7 +435,7 @@ int ext4_ext_migrate(struct inode *inode) struct inode *tmp_inode = NULL; struct migrate_struct lb; unsigned long max_entries; - __u32 goal; + __u32 goal, tmp_csum_seed; uid_t owner[2];
/* @@ -483,6 +483,7 @@ int ext4_ext_migrate(struct inode *inode) * the migration. */ ei = EXT4_I(inode); + tmp_csum_seed = EXT4_I(tmp_inode)->i_csum_seed; EXT4_I(tmp_inode)->i_csum_seed = ei->i_csum_seed; i_size_write(tmp_inode, i_size_read(inode)); /* @@ -593,6 +594,7 @@ int ext4_ext_migrate(struct inode *inode) * the inode is not visible to user space. */ tmp_inode->i_blocks = 0; + EXT4_I(tmp_inode)->i_csum_seed = tmp_csum_seed;
/* Reset the extent details */ ext4_ext_tree_init(handle, tmp_inode);
From: Zhihao Cheng chengzhihao1@huawei.com
[ Upstream commit 4a734f0869f970b8a9b65062ea40b09a5da9dba8 ]
Following process will fail assertion 'jh->b_frozen_data == NULL' in jbd2_journal_dirty_metadata():
jbd2_journal_commit_transaction unlink(dir/a) jh->b_transaction = trans1 jh->b_jlist = BJ_Metadata journal->j_running_transaction = NULL trans1->t_state = T_COMMIT unlink(dir/b) handle->h_trans = trans2 do_get_write_access jh->b_modified = 0 jh->b_frozen_data = frozen_buffer jh->b_next_transaction = trans2 jbd2_journal_dirty_metadata is_handle_aborted is_journal_aborted // return false
--> jbd2 abort <--
while (commit_transaction->t_buffers) if (is_journal_aborted) jbd2_journal_refile_buffer __jbd2_journal_refile_buffer WRITE_ONCE(jh->b_transaction, jh->b_next_transaction) WRITE_ONCE(jh->b_next_transaction, NULL) __jbd2_journal_file_buffer(jh, BJ_Reserved) J_ASSERT_JH(jh, jh->b_frozen_data == NULL) // assertion failure !
The reproducer (See detail in [Link]) reports: ------------[ cut here ]------------ kernel BUG at fs/jbd2/transaction.c:1629! invalid opcode: 0000 [#1] PREEMPT SMP CPU: 2 PID: 584 Comm: unlink Tainted: G W 5.19.0-rc6-00115-g4a57a8400075-dirty #697 RIP: 0010:jbd2_journal_dirty_metadata+0x3c5/0x470 RSP: 0018:ffffc90000be7ce0 EFLAGS: 00010202 Call Trace: <TASK> __ext4_handle_dirty_metadata+0xa0/0x290 ext4_handle_dirty_dirblock+0x10c/0x1d0 ext4_delete_entry+0x104/0x200 __ext4_unlink+0x22b/0x360 ext4_unlink+0x275/0x390 vfs_unlink+0x20b/0x4c0 do_unlinkat+0x42f/0x4c0 __x64_sys_unlink+0x37/0x50 do_syscall_64+0x35/0x80
After journal aborting, __jbd2_journal_refile_buffer() is executed with holding @jh->b_state_lock, we can fix it by moving 'is_handle_aborted()' into the area protected by @jh->b_state_lock.
Link: https://bugzilla.kernel.org/show_bug.cgi?id=216251 Fixes: 470decc613ab20 ("[PATCH] jbd2: initial copy of files from jbd") Signed-off-by: Zhihao Cheng chengzhihao1@huawei.com Link: https://lore.kernel.org/r/20220715125152.4022726-1-chengzhihao1@huawei.com Signed-off-by: Theodore Ts'o tytso@mit.edu Signed-off-by: Sasha Levin sashal@kernel.org --- fs/jbd2/transaction.c | 14 ++++++++++++-- 1 file changed, 12 insertions(+), 2 deletions(-)
diff --git a/fs/jbd2/transaction.c b/fs/jbd2/transaction.c index 8c305593fb51..dbad00c20aa1 100644 --- a/fs/jbd2/transaction.c +++ b/fs/jbd2/transaction.c @@ -1339,8 +1339,6 @@ int jbd2_journal_dirty_metadata(handle_t *handle, struct buffer_head *bh) struct journal_head *jh; int ret = 0;
- if (is_handle_aborted(handle)) - return -EROFS; if (!buffer_jbd(bh)) return -EUCLEAN;
@@ -1387,6 +1385,18 @@ int jbd2_journal_dirty_metadata(handle_t *handle, struct buffer_head *bh) journal = transaction->t_journal; jbd_lock_bh_state(bh);
+ if (is_handle_aborted(handle)) { + /* + * Check journal aborting with @jh->b_state_lock locked, + * since 'jh->b_transaction' could be replaced with + * 'jh->b_next_transaction' during old transaction + * committing if journal aborted, which may fail + * assertion on 'jh->b_frozen_data == NULL'. + */ + ret = -EROFS; + goto out_unlock_bh; + } + if (jh->b_modified == 0) { /* * This buffer's got modified and becoming part
From: Miaoqian Lin linmq006@gmail.com
[ Upstream commit ae4f11c1ed2d67192fdf3d89db719ee439827c11 ]
of_parse_phandle() returns a node pointer with refcount incremented, we should use of_node_put() on it when not need anymore. Fix missing of_node_put() in error paths.
Fixes: 94319ba10eca ("ASoC: mediatek: Use platform_of_node for machine drivers") Signed-off-by: Miaoqian Lin linmq006@gmail.com Link: https://lore.kernel.org/r/20220602034144.60159-1-linmq006@gmail.com Signed-off-by: Mark Brown broonie@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- sound/soc/mediatek/mt8173/mt8173-rt5650-rt5676.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-)
diff --git a/sound/soc/mediatek/mt8173/mt8173-rt5650-rt5676.c b/sound/soc/mediatek/mt8173/mt8173-rt5650-rt5676.c index 242f99716c61..c37c962173d9 100644 --- a/sound/soc/mediatek/mt8173/mt8173-rt5650-rt5676.c +++ b/sound/soc/mediatek/mt8173/mt8173-rt5650-rt5676.c @@ -245,14 +245,16 @@ static int mt8173_rt5650_rt5676_dev_probe(struct platform_device *pdev) if (!mt8173_rt5650_rt5676_codecs[0].of_node) { dev_err(&pdev->dev, "Property 'audio-codec' missing or invalid\n"); - return -EINVAL; + ret = -EINVAL; + goto put_node; } mt8173_rt5650_rt5676_codecs[1].of_node = of_parse_phandle(pdev->dev.of_node, "mediatek,audio-codec", 1); if (!mt8173_rt5650_rt5676_codecs[1].of_node) { dev_err(&pdev->dev, "Property 'audio-codec' missing or invalid\n"); - return -EINVAL; + ret = -EINVAL; + goto put_node; } mt8173_rt5650_rt5676_codec_conf[0].of_node = mt8173_rt5650_rt5676_codecs[1].of_node; @@ -265,7 +267,8 @@ static int mt8173_rt5650_rt5676_dev_probe(struct platform_device *pdev) if (!mt8173_rt5650_rt5676_dais[DAI_LINK_HDMI_I2S].codec_of_node) { dev_err(&pdev->dev, "Property 'audio-codec' missing or invalid\n"); - return -EINVAL; + ret = -EINVAL; + goto put_node; }
card->dev = &pdev->dev; @@ -275,6 +278,7 @@ static int mt8173_rt5650_rt5676_dev_probe(struct platform_device *pdev) dev_err(&pdev->dev, "%s snd_soc_register_card fail %d\n", __func__, ret);
+put_node: of_node_put(platform_node); return ret; }
From: Miaoqian Lin linmq006@gmail.com
[ Upstream commit 7472eb8d7dd12b6b9b1a4f4527719cc9c7f5965f ]
of_parse_phandle() returns a node pointer with refcount incremented, we should use of_node_put() on it when not need anymore. Add missing of_node_put() to avoid refcount leak.
Fixes: f0ab0bf250da ("ASoC: add mt6797-mt6351 driver and config option") Signed-off-by: Miaoqian Lin linmq006@gmail.com Link: https://lore.kernel.org/r/20220603083417.9011-1-linmq006@gmail.com Signed-off-by: Mark Brown broonie@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- sound/soc/mediatek/mt6797/mt6797-mt6351.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/sound/soc/mediatek/mt6797/mt6797-mt6351.c b/sound/soc/mediatek/mt6797/mt6797-mt6351.c index b1558c57b9ca..0c49e1a9a897 100644 --- a/sound/soc/mediatek/mt6797/mt6797-mt6351.c +++ b/sound/soc/mediatek/mt6797/mt6797-mt6351.c @@ -179,7 +179,8 @@ static int mt6797_mt6351_dev_probe(struct platform_device *pdev) if (!codec_node) { dev_err(&pdev->dev, "Property 'audio-codec' missing or invalid\n"); - return -EINVAL; + ret = -EINVAL; + goto put_platform_node; } for (i = 0; i < card->num_links; i++) { if (mt6797_mt6351_dai_links[i].codec_name) @@ -192,6 +193,9 @@ static int mt6797_mt6351_dev_probe(struct platform_device *pdev) dev_err(&pdev->dev, "%s snd_soc_register_card fail %d\n", __func__, ret);
+ of_node_put(codec_node); +put_platform_node: + of_node_put(platform_node); return ret; }
From: Jiasheng Jiang jiasheng@iscas.ac.cn
[ Upstream commit 82fa8f581a954ddeec1602bed9f8b4a09d100e6e ]
As i2c_add_driver could return error if fails, it should be better to check the return value. However, if the CONFIG_I2C and CONFIG_SPI_MASTER are both true, the return value of i2c_add_driver will be covered by spi_register_driver. Therefore, it is necessary to add check and return error if fails.
Fixes: aa0e25caafb7 ("ASoC: da7210: Add support for spi regmap") Signed-off-by: Jiasheng Jiang jiasheng@iscas.ac.cn Link: https://lore.kernel.org/r/20220531094712.2376759-1-jiasheng@iscas.ac.cn Signed-off-by: Mark Brown broonie@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- sound/soc/codecs/da7210.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/sound/soc/codecs/da7210.c b/sound/soc/codecs/da7210.c index e172913d04a4..efc5049c0796 100644 --- a/sound/soc/codecs/da7210.c +++ b/sound/soc/codecs/da7210.c @@ -1333,6 +1333,8 @@ static int __init da7210_modinit(void) int ret = 0; #if IS_ENABLED(CONFIG_I2C) ret = i2c_add_driver(&da7210_i2c_driver); + if (ret) + return ret; #endif #if defined(CONFIG_SPI_MASTER) ret = spi_register_driver(&da7210_spi_driver);
From: Miaoqian Lin linmq006@gmail.com
[ Upstream commit efe2178d1a32492f99e7f1f2568eea5c88a85729 ]
of_parse_phandle() returns a node pointer with refcount incremented, we should use of_node_put() on it when not need anymore. Fix refcount leak in some error paths.
Fixes: 0f83f9296d5c ("ASoC: mediatek: Add machine driver for ALC5650 codec") Signed-off-by: Miaoqian Lin linmq006@gmail.com Link: https://lore.kernel.org/r/20220603124243.31358-1-linmq006@gmail.com Signed-off-by: Mark Brown broonie@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- sound/soc/mediatek/mt8173/mt8173-rt5650.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/sound/soc/mediatek/mt8173/mt8173-rt5650.c b/sound/soc/mediatek/mt8173/mt8173-rt5650.c index 14011a70bcc4..8b613f8627fa 100644 --- a/sound/soc/mediatek/mt8173/mt8173-rt5650.c +++ b/sound/soc/mediatek/mt8173/mt8173-rt5650.c @@ -260,7 +260,8 @@ static int mt8173_rt5650_dev_probe(struct platform_device *pdev) if (!mt8173_rt5650_codecs[0].of_node) { dev_err(&pdev->dev, "Property 'audio-codec' missing or invalid\n"); - return -EINVAL; + ret = -EINVAL; + goto put_platform_node; } mt8173_rt5650_codecs[1].of_node = mt8173_rt5650_codecs[0].of_node;
@@ -272,7 +273,7 @@ static int mt8173_rt5650_dev_probe(struct platform_device *pdev) dev_err(&pdev->dev, "%s codec_capture_dai name fail %d\n", __func__, ret); - return ret; + goto put_platform_node; } mt8173_rt5650_codecs[1].dai_name = codec_capture_dai; } @@ -293,7 +294,8 @@ static int mt8173_rt5650_dev_probe(struct platform_device *pdev) if (!mt8173_rt5650_dais[DAI_LINK_HDMI_I2S].codec_of_node) { dev_err(&pdev->dev, "Property 'audio-codec' missing or invalid\n"); - return -EINVAL; + ret = -EINVAL; + goto put_platform_node; } card->dev = &pdev->dev;
@@ -302,6 +304,7 @@ static int mt8173_rt5650_dev_probe(struct platform_device *pdev) dev_err(&pdev->dev, "%s snd_soc_register_card fail %d\n", __func__, ret);
+put_platform_node: of_node_put(platform_node); return ret; }
From: Ilpo Järvinen ilpo.jarvinen@linux.intel.com
[ Upstream commit af14f3007e2dca0d112f10f6717ba43093f74e81 ]
Make sure LSR flags are preserved in dw8250_tx_wait_empty(). This function is called from a low-level out function and therefore cannot call serial_lsr_in() as it would lead to infinite recursion.
It is borderline if the flags need to be saved here at all since this code relates to writing LCR register which usually implies no important characters should be arriving.
Fixes: 914eaf935ec7 ("serial: 8250_dw: Allow TX FIFO to drain before writing to UART_LCR") Reviewed-by: Andy Shevchenko andy.shevchenko@gmail.com Signed-off-by: Ilpo Järvinen ilpo.jarvinen@linux.intel.com Link: https://lore.kernel.org/r/20220608095431.18376-7-ilpo.jarvinen@linux.intel.c... Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/tty/serial/8250/8250_dw.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/drivers/tty/serial/8250/8250_dw.c b/drivers/tty/serial/8250/8250_dw.c index c73d0eddd9b8..cc9d1f416db8 100644 --- a/drivers/tty/serial/8250/8250_dw.c +++ b/drivers/tty/serial/8250/8250_dw.c @@ -140,12 +140,15 @@ static void dw8250_check_lcr(struct uart_port *p, int value) /* Returns once the transmitter is empty or we run out of retries */ static void dw8250_tx_wait_empty(struct uart_port *p) { + struct uart_8250_port *up = up_to_u8250p(p); unsigned int tries = 20000; unsigned int delay_threshold = tries - 1000; unsigned int lsr;
while (tries--) { lsr = readb (p->membase + (UART_LSR << p->regshift)); + up->lsr_saved_flags |= lsr & LSR_SAVE_FLAGS; + if (lsr & UART_LSR_TEMT) break;
From: Chen Zhongjin chenzhongjin@huawei.com
[ Upstream commit 0fe6ee8f123a4dfb529a5aff07536bb481f34043 ]
2d186afd04d6 ("profiling: fix shift-out-of-bounds bugs") limits shift value by [0, BITS_PER_LONG -1], which means [0, 63].
However, syzbot found that the max shift value should be the bit number of (_etext - _stext). If shift is outside of this, the "buffer_bytes" will be zero and will cause kzalloc(0). Then the kernel panics due to dereferencing the returned pointer 16.
This can be easily reproduced by passing a large number like 60 to enable profiling and then run readprofile.
LOGS: BUG: kernel NULL pointer dereference, address: 0000000000000010 #PF: supervisor write access in kernel mode #PF: error_code(0x0002) - not-present page PGD 6148067 P4D 6148067 PUD 6142067 PMD 0 PREEMPT SMP CPU: 4 PID: 184 Comm: readprofile Not tainted 5.18.0+ #162 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.15.0-0-g2dd4b9b3f840-prebuilt.qemu.org 04/01/2014 RIP: 0010:read_profile+0x104/0x220 RSP: 0018:ffffc900006fbe80 EFLAGS: 00000202 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: ffff888006150000 RSI: 0000000000000001 RDI: ffffffff82aba4a0 RBP: 000000000188bb60 R08: 0000000000000010 R09: ffff888006151000 R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff82aba4a0 R13: 0000000000000000 R14: ffffc900006fbf08 R15: 0000000000020c30 FS: 000000000188a8c0(0000) GS:ffff88803ed00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000010 CR3: 0000000006144000 CR4: 00000000000006e0 Call Trace: <TASK> proc_reg_read+0x56/0x70 vfs_read+0x9a/0x1b0 ksys_read+0xa1/0xe0 ? fpregs_assert_state_consistent+0x1e/0x40 do_syscall_64+0x3a/0x80 entry_SYSCALL_64_after_hwframe+0x46/0xb0 RIP: 0033:0x4d4b4e RSP: 002b:00007ffebb668d58 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 RAX: ffffffffffffffda RBX: 000000000188a8a0 RCX: 00000000004d4b4e RDX: 0000000000000400 RSI: 000000000188bb60 RDI: 0000000000000003 RBP: 0000000000000003 R08: 000000000000006e R09: 0000000000000000 R10: 0000000000000041 R11: 0000000000000246 R12: 000000000188bb60 R13: 0000000000000400 R14: 0000000000000000 R15: 000000000188bb60 </TASK> Modules linked in: CR2: 0000000000000010 Killed ---[ end trace 0000000000000000 ]---
Check prof_len in profile_init() to prevent it be zero.
Link: https://lkml.kernel.org/r/20220531012854.229439-1-chenzhongjin@huawei.com Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Signed-off-by: Chen Zhongjin chenzhongjin@huawei.com Signed-off-by: Andrew Morton akpm@linux-foundation.org Signed-off-by: Sasha Levin sashal@kernel.org --- kernel/profile.c | 7 +++++++ 1 file changed, 7 insertions(+)
diff --git a/kernel/profile.c b/kernel/profile.c index efa58f63dc1b..7fc621404230 100644 --- a/kernel/profile.c +++ b/kernel/profile.c @@ -108,6 +108,13 @@ int __ref profile_init(void)
/* only text is profiled */ prof_len = (_etext - _stext) >> prof_shift; + + if (!prof_len) { + pr_warn("profiling shift: %u too large\n", prof_shift); + prof_on = 0; + return -EINVAL; + } + buffer_bytes = prof_len*sizeof(atomic_t);
if (!alloc_cpumask_var(&prof_cpu_mask, GFP_KERNEL))
From: Daniel Starke daniel.starke@siemens.com
[ Upstream commit bec0224816d19abe4fe503586d16d51890540615 ]
n_gsm is based on the 3GPP 07.010 and its newer version is the 3GPP 27.010. See https://portal.3gpp.org/desktopmodules/Specifications/SpecificationDetails.a... The changes from 07.010 to 27.010 are non-functional. Therefore, I refer to the newer 27.010 here. Chapter 5.4.6.3.6 states that FCoff stops the transmission on all channels except the control channel. This is already implemented in gsm_data_kick(). However, chapter 5.4.8.1 explains that this shall result in the same behavior as software flow control on the ldisc in advanced option mode. That means only flow control frames shall be sent during flow off. The current implementation does not consider this case.
Change gsm_data_kick() to send only flow control frames if constipated to abide the standard. gsm_read_ea_val() and gsm_is_flow_ctrl_msg() are introduced as helper functions for this. It is planned to use gsm_read_ea_val() in later code cleanups for other functions, too.
Fixes: c01af4fec2c8 ("n_gsm : Flow control handling in Mux driver") Signed-off-by: Daniel Starke daniel.starke@siemens.com Link: https://lore.kernel.org/r/20220701061652.39604-5-daniel.starke@siemens.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/tty/n_gsm.c | 54 ++++++++++++++++++++++++++++++++++++++++++++- 1 file changed, 53 insertions(+), 1 deletion(-)
diff --git a/drivers/tty/n_gsm.c b/drivers/tty/n_gsm.c index 5d2bb4d95186..baadac224c8d 100644 --- a/drivers/tty/n_gsm.c +++ b/drivers/tty/n_gsm.c @@ -410,6 +410,27 @@ static int gsm_read_ea(unsigned int *val, u8 c) return c & EA; }
+/** + * gsm_read_ea_val - read a value until EA + * @val: variable holding value + * @data: buffer of data + * @dlen: length of data + * + * Processes an EA value. Updates the passed variable and + * returns the processed data length. + */ +static unsigned int gsm_read_ea_val(unsigned int *val, const u8 *data, int dlen) +{ + unsigned int len = 0; + + for (; dlen > 0; dlen--) { + len++; + if (gsm_read_ea(val, *data++)) + break; + } + return len; +} + /** * gsm_encode_modem - encode modem data bits * @dlci: DLCI to encode from @@ -657,6 +678,37 @@ static struct gsm_msg *gsm_data_alloc(struct gsm_mux *gsm, u8 addr, int len, return m; }
+/** + * gsm_is_flow_ctrl_msg - checks if flow control message + * @msg: message to check + * + * Returns true if the given message is a flow control command of the + * control channel. False is returned in any other case. + */ +static bool gsm_is_flow_ctrl_msg(struct gsm_msg *msg) +{ + unsigned int cmd; + + if (msg->addr > 0) + return false; + + switch (msg->ctrl & ~PF) { + case UI: + case UIH: + cmd = 0; + if (gsm_read_ea_val(&cmd, msg->data + 2, msg->len - 2) < 1) + break; + switch (cmd & ~PF) { + case CMD_FCOFF: + case CMD_FCON: + return true; + } + break; + } + + return false; +} + /** * gsm_data_kick - poke the queue * @gsm: GSM Mux @@ -675,7 +727,7 @@ static void gsm_data_kick(struct gsm_mux *gsm, struct gsm_dlci *dlci) int len;
list_for_each_entry_safe(msg, nmsg, &gsm->tx_list, list) { - if (gsm->constipated && msg->addr) + if (gsm->constipated && !gsm_is_flow_ctrl_msg(msg)) continue; if (gsm->encoding != 0) { gsm->txframe[0] = GSM1_SOF;
From: Daniel Starke daniel.starke@siemens.com
[ Upstream commit 4fae831b3a71fc5a44cc5c7d0b8c1267ee7659f5 ]
In the current implementation control packets are re-transmitted even if the control channel closed down during T2. This is wrong. Check whether the control channel is open before re-transmitting any packets. Note that control channel open/close is handled by T1 and not T2 and remains unaffected by this.
Fixes: e1eaea46bb40 ("tty: n_gsm line discipline") Signed-off-by: Daniel Starke daniel.starke@siemens.com Link: https://lore.kernel.org/r/20220701061652.39604-7-daniel.starke@siemens.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/tty/n_gsm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/tty/n_gsm.c b/drivers/tty/n_gsm.c index baadac224c8d..2c34a024b75f 100644 --- a/drivers/tty/n_gsm.c +++ b/drivers/tty/n_gsm.c @@ -1382,7 +1382,7 @@ static void gsm_control_retransmit(struct timer_list *t) spin_lock_irqsave(&gsm->control_lock, flags); ctrl = gsm->pending_cmd; if (ctrl) { - if (gsm->cretries == 0) { + if (gsm->cretries == 0 || !gsm->dlci[0] || gsm->dlci[0]->dead) { gsm->pending_cmd = NULL; ctrl->error = -ETIMEDOUT; ctrl->done = 1;
From: Daniel Starke daniel.starke@siemens.com
[ Upstream commit 32dd59f96924f45e33bc79854f7a00679c0fa28e ]
The function may be used by the user directly and also by the n_gsm internal functions. They can lead into a race condition which results in interleaved frames if both are writing at the same time. The receiving side is not able to decode those interleaved frames correctly.
Add a lock around the low side tty write to avoid race conditions and frame interleaving between user originated writes and n_gsm writes.
Fixes: e1eaea46bb40 ("tty: n_gsm line discipline") Signed-off-by: Daniel Starke daniel.starke@siemens.com Link: https://lore.kernel.org/r/20220701061652.39604-9-daniel.starke@siemens.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/tty/n_gsm.c | 21 +++++++++++++++++---- 1 file changed, 17 insertions(+), 4 deletions(-)
diff --git a/drivers/tty/n_gsm.c b/drivers/tty/n_gsm.c index 2c34a024b75f..3d45999fad1b 100644 --- a/drivers/tty/n_gsm.c +++ b/drivers/tty/n_gsm.c @@ -2519,11 +2519,24 @@ static ssize_t gsmld_read(struct tty_struct *tty, struct file *file, static ssize_t gsmld_write(struct tty_struct *tty, struct file *file, const unsigned char *buf, size_t nr) { - int space = tty_write_room(tty); + struct gsm_mux *gsm = tty->disc_data; + unsigned long flags; + int space; + int ret; + + if (!gsm) + return -ENODEV; + + ret = -ENOBUFS; + spin_lock_irqsave(&gsm->tx_lock, flags); + space = tty_write_room(tty); if (space >= nr) - return tty->ops->write(tty, buf, nr); - set_bit(TTY_DO_WRITE_WAKEUP, &tty->flags); - return -ENOBUFS; + ret = tty->ops->write(tty, buf, nr); + else + set_bit(TTY_DO_WRITE_WAKEUP, &tty->flags); + spin_unlock_irqrestore(&gsm->tx_lock, flags); + + return ret; }
/**
From: Sireesh Kodali sireeshkodali1@gmail.com
[ Upstream commit bed0adac1ded4cb486ba19a3a7e730fbd9a1c9c6 ]
The wcnss_get_irq function is expected to return a value > 0 in the event that an IRQ is succssfully obtained, but it instead returns 0. This causes the stop and ready IRQs to never actually be used despite being defined in the device-tree. This patch fixes that.
Fixes: aed361adca9f ("remoteproc: qcom: Introduce WCNSS peripheral image loader") Signed-off-by: Sireesh Kodali sireeshkodali1@gmail.com Signed-off-by: Bjorn Andersson bjorn.andersson@linaro.org Link: https://lore.kernel.org/r/20220526141740.15834-2-sireeshkodali1@gmail.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/remoteproc/qcom_wcnss.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-)
diff --git a/drivers/remoteproc/qcom_wcnss.c b/drivers/remoteproc/qcom_wcnss.c index 6cc0f9a5533e..63726d8fb332 100644 --- a/drivers/remoteproc/qcom_wcnss.c +++ b/drivers/remoteproc/qcom_wcnss.c @@ -415,6 +415,7 @@ static int wcnss_request_irq(struct qcom_wcnss *wcnss, irq_handler_t thread_fn) { int ret; + int irq_number;
ret = platform_get_irq_byname(pdev, name); if (ret < 0 && optional) { @@ -425,14 +426,19 @@ static int wcnss_request_irq(struct qcom_wcnss *wcnss, return ret; }
+ irq_number = ret; + ret = devm_request_threaded_irq(&pdev->dev, ret, NULL, thread_fn, IRQF_TRIGGER_RISING | IRQF_ONESHOT, "wcnss", wcnss); - if (ret) + if (ret) { dev_err(&pdev->dev, "request %s IRQ failed\n", name); + return ret; + }
- return ret; + /* Return the IRQ number if the IRQ was successfully acquired */ + return irq_number; }
static int wcnss_alloc_memory_region(struct qcom_wcnss *wcnss)
From: Eric Farman farman@linux.ibm.com
[ Upstream commit cffcc109fd682075dee79bade3d60a07152a8fd1 ]
The routine vfio_ccw_sch_event() is tasked with handling subchannel events, specifically machine checks, on behalf of vfio-ccw. It correctly calls cio_update_schib(), and if that fails (meaning the subchannel is gone) it makes an FSM event call to mark the subchannel Not Operational.
If that worked, however, then it decides that if the FSM state was already Not Operational (implying the subchannel just came back), then it should simply change the FSM to partially- or fully-open.
Remove this trickery, since a subchannel returning will require more probing than simply "oh all is well again" to ensure it works correctly.
Fixes: bbe37e4cb8970 ("vfio: ccw: introduce a finite state machine") Signed-off-by: Eric Farman farman@linux.ibm.com Reviewed-by: Matthew Rosato mjrosato@linux.ibm.com Link: https://lore.kernel.org/r/20220707135737.720765-4-farman@linux.ibm.com Signed-off-by: Alex Williamson alex.williamson@redhat.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/s390/cio/vfio_ccw_drv.c | 14 +++----------- 1 file changed, 3 insertions(+), 11 deletions(-)
diff --git a/drivers/s390/cio/vfio_ccw_drv.c b/drivers/s390/cio/vfio_ccw_drv.c index 7a06cdff6572..862b0eb0fe6d 100644 --- a/drivers/s390/cio/vfio_ccw_drv.c +++ b/drivers/s390/cio/vfio_ccw_drv.c @@ -205,19 +205,11 @@ static int vfio_ccw_sch_event(struct subchannel *sch, int process) if (work_pending(&sch->todo_work)) goto out_unlock;
- if (cio_update_schib(sch)) { - vfio_ccw_fsm_event(private, VFIO_CCW_EVENT_NOT_OPER); - rc = 0; - goto out_unlock; - } - - private = dev_get_drvdata(&sch->dev); - if (private->state == VFIO_CCW_STATE_NOT_OPER) { - private->state = private->mdev ? VFIO_CCW_STATE_IDLE : - VFIO_CCW_STATE_STANDBY; - } rc = 0;
+ if (cio_update_schib(sch)) + vfio_ccw_fsm_event(private, VFIO_CCW_EVENT_NOT_OPER); + out_unlock: spin_unlock_irqrestore(sch->lock, flags);
From: Daniel Starke daniel.starke@siemens.com
[ Upstream commit f30e10caa80aa1f35508bc17fc302dbbde9a833c ]
n_gsm is based on the 3GPP 07.010 and its newer version is the 3GPP 27.010. See https://portal.3gpp.org/desktopmodules/Specifications/SpecificationDetails.a... The changes from 07.010 to 27.010 are non-functional. Therefore, I refer to the newer 27.010 here. Chapter 5.7.3 states that the valid range for the maximum number of retransmissions (N2) is from 0 to 255 (both including). gsm_dlci_t1() handles this number incorrectly by performing N2 - 1 retransmission attempts. Setting N2 to zero results in more than 255 retransmission attempts. Fix gsm_dlci_t1() to comply with 3GPP 27.010.
Fixes: e1eaea46bb40 ("tty: n_gsm line discipline") Signed-off-by: Daniel Starke daniel.starke@siemens.com Link: https://lore.kernel.org/r/20220707113223.3685-1-daniel.starke@siemens.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/tty/n_gsm.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/tty/n_gsm.c b/drivers/tty/n_gsm.c index 3d45999fad1b..43491df37a2d 100644 --- a/drivers/tty/n_gsm.c +++ b/drivers/tty/n_gsm.c @@ -1534,8 +1534,8 @@ static void gsm_dlci_t1(struct timer_list *t)
switch (dlci->state) { case DLCI_OPENING: - dlci->retries--; if (dlci->retries) { + dlci->retries--; gsm_command(dlci->gsm, dlci->addr, SABM|PF); mod_timer(&dlci->t1, jiffies + gsm->t1 * HZ / 100); } else if (!dlci->addr && gsm->control == (DM | PF)) { @@ -1550,8 +1550,8 @@ static void gsm_dlci_t1(struct timer_list *t)
break; case DLCI_CLOSING: - dlci->retries--; if (dlci->retries) { + dlci->retries--; gsm_command(dlci->gsm, dlci->addr, DISC|PF); mod_timer(&dlci->t1, jiffies + gsm->t1 * HZ / 100); } else
From: Daniel Starke daniel.starke@siemens.com
[ Upstream commit 18a948c7d90995d127785e308fa7b701df4c499f ]
n_gsm is based on the 3GPP 07.010 and its newer version is the 3GPP 27.010. See https://portal.3gpp.org/desktopmodules/Specifications/SpecificationDetails.a... The changes from 07.010 to 27.010 are non-functional. Therefore, I refer to the newer 27.010 here. Chapter 5.3.3 defines the DM response. There exists no DM command. However, the current implementation incorrectly sends DM as command in case of unexpected UIH frames in gsm_queue(). Correct this behavior by always sending DM as response.
Fixes: e1eaea46bb40 ("tty: n_gsm line discipline") Signed-off-by: Daniel Starke daniel.starke@siemens.com Link: https://lore.kernel.org/r/20220707113223.3685-2-daniel.starke@siemens.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/tty/n_gsm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/tty/n_gsm.c b/drivers/tty/n_gsm.c index 43491df37a2d..727707e02551 100644 --- a/drivers/tty/n_gsm.c +++ b/drivers/tty/n_gsm.c @@ -1892,7 +1892,7 @@ static void gsm_queue(struct gsm_mux *gsm) goto invalid; #endif if (dlci == NULL || dlci->state != DLCI_OPEN) { - gsm_command(gsm, address, DM|PF); + gsm_response(gsm, address, DM|PF); return; } dlci->data(dlci, gsm->buf, gsm->len);
From: Daniel Starke daniel.starke@siemens.com
[ Upstream commit 7e5b4322cde067e1d0f1bf8f490e93f664a7c843 ]
gsmld_poll() currently fails to handle the following corner cases correctly: - remote party closed the associated tty
Add the missing checks and map those to EPOLLHUP. Reorder the checks to group them by their reaction.
Fixes: e1eaea46bb40 ("tty: n_gsm line discipline") Signed-off-by: Daniel Starke daniel.starke@siemens.com Link: https://lore.kernel.org/r/20220707113223.3685-4-daniel.starke@siemens.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/tty/n_gsm.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/drivers/tty/n_gsm.c b/drivers/tty/n_gsm.c index 727707e02551..f6d2be13b32e 100644 --- a/drivers/tty/n_gsm.c +++ b/drivers/tty/n_gsm.c @@ -2561,12 +2561,15 @@ static __poll_t gsmld_poll(struct tty_struct *tty, struct file *file,
poll_wait(file, &tty->read_wait, wait); poll_wait(file, &tty->write_wait, wait); + + if (gsm->dead) + mask |= EPOLLHUP; if (tty_hung_up_p(file)) mask |= EPOLLHUP; + if (test_bit(TTY_OTHER_CLOSED, &tty->flags)) + mask |= EPOLLHUP; if (!tty_is_writelocked(tty) && tty_write_room(tty) > 0) mask |= EPOLLOUT | EPOLLWRNORM; - if (gsm->dead) - mask |= EPOLLHUP; return mask; }
From: Sam Protsenko semen.protsenko@linaro.org
[ Upstream commit fce398d2d02c0a9a2bedf7c7201b123e153e8963 ]
If iommu_device_register() fails in exynos_sysmmu_probe(), the previous calls have to be cleaned up. In this case, the iommu_device_sysfs_add() should be cleaned up, by calling its remove counterpart call.
Fixes: d2c302b6e8b1 ("iommu/exynos: Make use of iommu_device_register interface") Signed-off-by: Sam Protsenko semen.protsenko@linaro.org Reviewed-by: Krzysztof Kozlowski krzysztof.kozlowski@linaro.org Acked-by: Marek Szyprowski m.szyprowski@samsung.com Link: https://lore.kernel.org/r/20220714165550.8884-3-semen.protsenko@linaro.org Signed-off-by: Joerg Roedel jroedel@suse.de Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/iommu/exynos-iommu.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/iommu/exynos-iommu.c b/drivers/iommu/exynos-iommu.c index 4bf6049dd2c7..8626c924f724 100644 --- a/drivers/iommu/exynos-iommu.c +++ b/drivers/iommu/exynos-iommu.c @@ -640,7 +640,7 @@ static int __init exynos_sysmmu_probe(struct platform_device *pdev)
ret = iommu_device_register(&data->iommu); if (ret) - return ret; + goto err_iommu_register;
platform_set_drvdata(pdev, data);
@@ -667,6 +667,10 @@ static int __init exynos_sysmmu_probe(struct platform_device *pdev) pm_runtime_enable(dev);
return 0; + +err_iommu_register: + iommu_device_sysfs_remove(&data->iommu); + return ret; }
static int __maybe_unused exynos_sysmmu_suspend(struct device *dev)
From: Miaoqian Lin linmq006@gmail.com
[ Upstream commit 65382585f067d4256ba087934f30f85c9b6984de ]
of_parse_phandle() returns a node pointer with refcount incremented, we should use of_node_put() on it when done.
Fixes: 53e2822e56c7 ("rpmsg: Introduce Qualcomm SMD backend") Signed-off-by: Miaoqian Lin linmq006@gmail.com Signed-off-by: Bjorn Andersson bjorn.andersson@linaro.org Link: https://lore.kernel.org/r/20220511120737.57374-1-linmq006@gmail.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/rpmsg/qcom_smd.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/rpmsg/qcom_smd.c b/drivers/rpmsg/qcom_smd.c index f23f10887d93..f4f950c231d6 100644 --- a/drivers/rpmsg/qcom_smd.c +++ b/drivers/rpmsg/qcom_smd.c @@ -1364,6 +1364,7 @@ static int qcom_smd_parse_edge(struct device *dev, }
edge->ipc_regmap = syscon_node_to_regmap(syscon_np); + of_node_put(syscon_np); if (IS_ERR(edge->ipc_regmap)) { ret = PTR_ERR(edge->ipc_regmap); goto put_node;
From: Dan Carpenter dan.carpenter@oracle.com
[ Upstream commit 045ed31e23aea840648c290dbde04797064960db ]
The kfifo_to_user() macro is supposed to return zero for success or negative error codes. Unfortunately, there is a signedness bug so it returns unsigned int. This only affects callers which try to save the result in ssize_t and as far as I can see the only place which does that is line6_hwdep_read().
TL;DR: s/_uint/_int/.
Link: https://lkml.kernel.org/r/YrVL3OJVLlNhIMFs@kili Fixes: 144ecf310eb5 ("kfifo: fix kfifo_alloc() to return a signed int value") Signed-off-by: Dan Carpenter dan.carpenter@oracle.com Cc: Stefani Seibold stefani@seibold.net Cc: Randy Dunlap randy.dunlap@oracle.com Signed-off-by: Andrew Morton akpm@linux-foundation.org Signed-off-by: Sasha Levin sashal@kernel.org --- include/linux/kfifo.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/linux/kfifo.h b/include/linux/kfifo.h index 89fc8dc7bf38..ab9ff74818a4 100644 --- a/include/linux/kfifo.h +++ b/include/linux/kfifo.h @@ -629,7 +629,7 @@ __kfifo_uint_must_check_helper( \ * writer, you don't need extra locking to use these macro. */ #define kfifo_to_user(fifo, to, len, copied) \ -__kfifo_uint_must_check_helper( \ +__kfifo_int_must_check_helper( \ ({ \ typeof((fifo) + 1) __tmp = (fifo); \ void __user *__to = (to); \
From: Uwe Kleine-König u.kleine-koenig@pengutronix.de
[ Upstream commit 128ac294e1b437cb8a7f2ff8ede1cde9082bddbe ]
None of the in-tree instantiations of struct t7l66xb_platform_data provides a disable callback. So better don't dereference this function pointer unconditionally. As there is no user, drop it completely instead of calling it conditional.
This is a preparation for making platform remove callbacks return void.
Fixes: 1f192015ca5b ("mfd: driver for the T7L66XB TMIO SoC") Signed-off-by: Uwe Kleine-König u.kleine-koenig@pengutronix.de Signed-off-by: Lee Jones lee.jones@linaro.org Link: https://lore.kernel.org/r/20220530192430.2108217-3-u.kleine-koenig@pengutron... Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/mfd/t7l66xb.c | 6 +----- include/linux/mfd/t7l66xb.h | 1 - 2 files changed, 1 insertion(+), 6 deletions(-)
diff --git a/drivers/mfd/t7l66xb.c b/drivers/mfd/t7l66xb.c index 43d8683266de..caa61649fe79 100644 --- a/drivers/mfd/t7l66xb.c +++ b/drivers/mfd/t7l66xb.c @@ -412,11 +412,8 @@ static int t7l66xb_probe(struct platform_device *dev)
static int t7l66xb_remove(struct platform_device *dev) { - struct t7l66xb_platform_data *pdata = dev_get_platdata(&dev->dev); struct t7l66xb *t7l66xb = platform_get_drvdata(dev); - int ret;
- ret = pdata->disable(dev); clk_disable_unprepare(t7l66xb->clk48m); clk_put(t7l66xb->clk48m); clk_disable_unprepare(t7l66xb->clk32k); @@ -427,8 +424,7 @@ static int t7l66xb_remove(struct platform_device *dev) mfd_remove_devices(&dev->dev); kfree(t7l66xb);
- return ret; - + return 0; }
static struct platform_driver t7l66xb_platform_driver = { diff --git a/include/linux/mfd/t7l66xb.h b/include/linux/mfd/t7l66xb.h index b4629818aea5..d4e7f0453c91 100644 --- a/include/linux/mfd/t7l66xb.h +++ b/include/linux/mfd/t7l66xb.h @@ -16,7 +16,6 @@
struct t7l66xb_platform_data { int (*enable)(struct platform_device *dev); - int (*disable)(struct platform_device *dev); int (*suspend)(struct platform_device *dev); int (*resume)(struct platform_device *dev);
From: Liang He windhl@126.com
[ Upstream commit a91eb6803c1c715738682fece095145cbd68fe0b ]
In qcom_iommu_has_secure_context(), we should call of_node_put() for the reference 'child' when breaking out of for_each_child_of_node() which will automatically increase and decrease the refcount.
Fixes: d051f28c8807 ("iommu/qcom: Initialize secure page table") Signed-off-by: Liang He windhl@126.com Link: https://lore.kernel.org/r/20220719124955.1242171-1-windhl@126.com Signed-off-by: Will Deacon will@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/iommu/qcom_iommu.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/drivers/iommu/qcom_iommu.c b/drivers/iommu/qcom_iommu.c index b0a4a3d2f60e..244e2f7eae84 100644 --- a/drivers/iommu/qcom_iommu.c +++ b/drivers/iommu/qcom_iommu.c @@ -767,9 +767,12 @@ static bool qcom_iommu_has_secure_context(struct qcom_iommu_dev *qcom_iommu) { struct device_node *child;
- for_each_child_of_node(qcom_iommu->dev->of_node, child) - if (of_device_is_compatible(child, "qcom,msm-iommu-v1-sec")) + for_each_child_of_node(qcom_iommu->dev->of_node, child) { + if (of_device_is_compatible(child, "qcom,msm-iommu-v1-sec")) { + of_node_put(child); return true; + } + }
return false; }
From: Alexander Gordeev agordeev@linux.ibm.com
[ Upstream commit 9ffed254d938c9e99eb7761c7f739294c84e0367 ]
Memory buffer used for reading out data from hardware system area is not protected against concurrent access.
Reported-by: Matthew Wilcox willy@infradead.org Fixes: 411ed3225733 ("[S390] zfcpdump support.") Acked-by: Heiko Carstens hca@linux.ibm.com Tested-by: Alexander Egorenkov egorenar@linux.ibm.com Link: https://lore.kernel.org/r/e68137f0f9a0d2558f37becc20af18e2939934f6.165820689... Signed-off-by: Alexander Gordeev agordeev@linux.ibm.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/s390/char/zcore.c | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-)
diff --git a/drivers/s390/char/zcore.c b/drivers/s390/char/zcore.c index 76d3c50bf078..ba8fc756264b 100644 --- a/drivers/s390/char/zcore.c +++ b/drivers/s390/char/zcore.c @@ -53,6 +53,7 @@ static struct dentry *zcore_reipl_file; static struct dentry *zcore_hsa_file; static struct ipl_parameter_block *ipl_block;
+static DEFINE_MUTEX(hsa_buf_mutex); static char hsa_buf[PAGE_SIZE] __aligned(PAGE_SIZE);
/* @@ -69,19 +70,24 @@ int memcpy_hsa_user(void __user *dest, unsigned long src, size_t count) if (!hsa_available) return -ENODATA;
+ mutex_lock(&hsa_buf_mutex); while (count) { if (sclp_sdias_copy(hsa_buf, src / PAGE_SIZE + 2, 1)) { TRACE("sclp_sdias_copy() failed\n"); + mutex_unlock(&hsa_buf_mutex); return -EIO; } offset = src % PAGE_SIZE; bytes = min(PAGE_SIZE - offset, count); - if (copy_to_user(dest, hsa_buf + offset, bytes)) + if (copy_to_user(dest, hsa_buf + offset, bytes)) { + mutex_unlock(&hsa_buf_mutex); return -EFAULT; + } src += bytes; dest += bytes; count -= bytes; } + mutex_unlock(&hsa_buf_mutex); return 0; }
@@ -99,9 +105,11 @@ int memcpy_hsa_kernel(void *dest, unsigned long src, size_t count) if (!hsa_available) return -ENODATA;
+ mutex_lock(&hsa_buf_mutex); while (count) { if (sclp_sdias_copy(hsa_buf, src / PAGE_SIZE + 2, 1)) { TRACE("sclp_sdias_copy() failed\n"); + mutex_unlock(&hsa_buf_mutex); return -EIO; } offset = src % PAGE_SIZE; @@ -111,6 +119,7 @@ int memcpy_hsa_kernel(void *dest, unsigned long src, size_t count) dest += bytes; count -= bytes; } + mutex_unlock(&hsa_buf_mutex); return 0; }
From: Christophe JAILLET christophe.jaillet@wanadoo.fr
[ Upstream commit 673f58f62ca6fc98979d1cf3fe89c3ff33f29b2e ]
find_first_zero_bit() returns MAX_COPPS_PER_PORT at max here. So 'idx' should be tested with ">=" or the test can't match.
Fixes: 7b20b2be51e1 ("ASoC: qdsp6: q6adm: Add q6adm driver") Signed-off-by: Christophe JAILLET christophe.jaillet@wanadoo.fr Link: https://lore.kernel.org/r/0fca3271649736053eb9649d87e1ca01b056be40.165839412... Signed-off-by: Mark Brown broonie@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- sound/soc/qcom/qdsp6/q6adm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/sound/soc/qcom/qdsp6/q6adm.c b/sound/soc/qcom/qdsp6/q6adm.c index 932c3ebfd252..01f9127daf5c 100644 --- a/sound/soc/qcom/qdsp6/q6adm.c +++ b/sound/soc/qcom/qdsp6/q6adm.c @@ -218,7 +218,7 @@ static struct q6copp *q6adm_alloc_copp(struct q6adm *adm, int port_idx) idx = find_first_zero_bit(&adm->copp_bitmap[port_idx], MAX_COPPS_PER_PORT);
- if (idx > MAX_COPPS_PER_PORT) + if (idx >= MAX_COPPS_PER_PORT) return ERR_PTR(-EBUSY);
c = kzalloc(sizeof(*c), GFP_ATOMIC);
From: Liang He windhl@126.com
[ Upstream commit 26c2b7d9fac42eb8317f3ceefa4c1a9a9170ca69 ]
In clcdfb_of_init_display(), we should call of_node_put() for the references returned by of_graph_get_next_endpoint() and of_graph_get_remote_port_parent() which have increased the refcount.
Besides, we should call of_node_put() both in fail path or when the references are not used anymore.
Fixes: d10715be03bd ("video: ARM CLCD: Add DT support") Signed-off-by: Liang He windhl@126.com Signed-off-by: Helge Deller deller@gmx.de Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/video/fbdev/amba-clcd.c | 24 ++++++++++++++++++------ 1 file changed, 18 insertions(+), 6 deletions(-)
diff --git a/drivers/video/fbdev/amba-clcd.c b/drivers/video/fbdev/amba-clcd.c index 549f78e77255..81f64ef6fa4c 100644 --- a/drivers/video/fbdev/amba-clcd.c +++ b/drivers/video/fbdev/amba-clcd.c @@ -772,8 +772,10 @@ static int clcdfb_of_init_display(struct clcd_fb *fb) return -ENODEV;
panel = of_graph_get_remote_port_parent(endpoint); - if (!panel) - return -ENODEV; + if (!panel) { + err = -ENODEV; + goto out_endpoint_put; + }
if (fb->vendor->init_panel) { err = fb->vendor->init_panel(fb, panel); @@ -783,11 +785,11 @@ static int clcdfb_of_init_display(struct clcd_fb *fb)
err = clcdfb_of_get_backlight(panel, fb->panel); if (err) - return err; + goto out_panel_put;
err = clcdfb_of_get_mode(&fb->dev->dev, panel, fb->panel); if (err) - return err; + goto out_panel_put;
err = of_property_read_u32(fb->dev->dev.of_node, "max-memory-bandwidth", &max_bandwidth); @@ -816,11 +818,21 @@ static int clcdfb_of_init_display(struct clcd_fb *fb)
if (of_property_read_u32_array(endpoint, "arm,pl11x,tft-r0g0b0-pads", - tft_r0b0g0, ARRAY_SIZE(tft_r0b0g0)) != 0) - return -ENOENT; + tft_r0b0g0, ARRAY_SIZE(tft_r0b0g0)) != 0) { + err = -ENOENT; + goto out_panel_put; + } + + of_node_put(panel); + of_node_put(endpoint);
return clcdfb_of_init_tft_panel(fb, tft_r0b0g0[0], tft_r0b0g0[1], tft_r0b0g0[2]); +out_panel_put: + of_node_put(panel); +out_endpoint_put: + of_node_put(endpoint); + return err; }
static int clcdfb_of_vram_setup(struct clcd_fb *fb)
From: Rustam Subkhankulov subkhankulov@ispras.ru
[ Upstream commit 3eb8fccc244bfb41a7961969e4db280d44911226 ]
The second operand of a '&&' operator has no impact on expression result for cases 400 and 512 in SiS_GetModeID().
Judging by the logic and the names of the variables, in both cases a typo was made.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
Signed-off-by: Rustam Subkhankulov subkhankulov@ispras.ru Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Signed-off-by: Helge Deller deller@gmx.de Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/video/fbdev/sis/init.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/video/fbdev/sis/init.c b/drivers/video/fbdev/sis/init.c index fde27feae5d0..d6b2ce95a859 100644 --- a/drivers/video/fbdev/sis/init.c +++ b/drivers/video/fbdev/sis/init.c @@ -355,12 +355,12 @@ SiS_GetModeID(int VGAEngine, unsigned int VBFlags, int HDisplay, int VDisplay, } break; case 400: - if((!(VBFlags & CRT1_LCDA)) || ((LCDwidth >= 800) && (LCDwidth >= 600))) { + if((!(VBFlags & CRT1_LCDA)) || ((LCDwidth >= 800) && (LCDheight >= 600))) { if(VDisplay == 300) ModeIndex = ModeIndex_400x300[Depth]; } break; case 512: - if((!(VBFlags & CRT1_LCDA)) || ((LCDwidth >= 1024) && (LCDwidth >= 768))) { + if((!(VBFlags & CRT1_LCDA)) || ((LCDwidth >= 1024) && (LCDheight >= 768))) { if(VDisplay == 384) ModeIndex = ModeIndex_512x384[Depth]; } break;
From: Christophe Leroy christophe.leroy@csgroup.eu
[ Upstream commit 9be013b2a9ecb29b5168e4b9db0e48ed53acf37c ]
Commit 0e00a8c9fd92 ("powerpc: Allow CPU selection also on PPC32") enlarged the CPU selection logic to PPC32 by removing depend to PPC64, and failed to restrict that depend to E5500_CPU and E6500_CPU. Fortunately that got unnoticed because -mcpu=8540 will override the -mcpu=e500mc64 or -mpcu=e6500 as they are ealier, but that's fragile and may no be right in the future.
Add back the depend PPC64 on E5500_CPU and E6500_CPU.
Fixes: 0e00a8c9fd92 ("powerpc: Allow CPU selection also on PPC32") Signed-off-by: Christophe Leroy christophe.leroy@csgroup.eu Signed-off-by: Michael Ellerman mpe@ellerman.id.au Link: https://lore.kernel.org/r/8abab4888da69ff78b73a56f64d9678a7bf684e9.165754915... Signed-off-by: Sasha Levin sashal@kernel.org --- arch/powerpc/platforms/Kconfig.cputype | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/powerpc/platforms/Kconfig.cputype b/arch/powerpc/platforms/Kconfig.cputype index ad0216c41d2c..67ad128a9a3d 100644 --- a/arch/powerpc/platforms/Kconfig.cputype +++ b/arch/powerpc/platforms/Kconfig.cputype @@ -134,11 +134,11 @@ config POWER9_CPU
config E5500_CPU bool "Freescale e5500" - depends on E500 + depends on PPC64 && E500
config E6500_CPU bool "Freescale e6500" - depends on E500 + depends on PPC64 && E500
config 860_CPU bool "8xx family"
From: Pali Rohár pali@kernel.org
[ Upstream commit 0fe1e96fef0a5c53b4c0d1500d356f3906000f81 ]
Other Linux architectures use DT property 'linux,pci-domain' for specifying fixed PCI domain of PCI controller specified in Device-Tree.
And lot of Freescale powerpc boards have defined numbered pci alias in Device-Tree for every PCIe controller which number specify preferred PCI domain.
So prefer usage of DT property 'linux,pci-domain' (via function of_get_pci_domain_nr()) and DT pci alias (via function of_alias_get_id()) on powerpc architecture for assigning PCI domain to PCI controller.
Fixes: 63a72284b159 ("powerpc/pci: Assign fixed PHB number based on device-tree properties") Signed-off-by: Pali Rohár pali@kernel.org Signed-off-by: Michael Ellerman mpe@ellerman.id.au Link: https://lore.kernel.org/r/20220706102148.5060-2-pali@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- arch/powerpc/kernel/pci-common.c | 27 +++++++++++++++++++-------- 1 file changed, 19 insertions(+), 8 deletions(-)
diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c index 74628aca2bf1..b0bd55f2ce3a 100644 --- a/arch/powerpc/kernel/pci-common.c +++ b/arch/powerpc/kernel/pci-common.c @@ -82,16 +82,30 @@ EXPORT_SYMBOL(get_pci_dma_ops); static int get_phb_number(struct device_node *dn) { int ret, phb_id = -1; - u32 prop_32; u64 prop;
/* * Try fixed PHB numbering first, by checking archs and reading - * the respective device-tree properties. Firstly, try powernv by - * reading "ibm,opal-phbid", only present in OPAL environment. + * the respective device-tree properties. Firstly, try reading + * standard "linux,pci-domain", then try reading "ibm,opal-phbid" + * (only present in powernv OPAL environment), then try device-tree + * alias and as the last try to use lower bits of "reg" property. */ - ret = of_property_read_u64(dn, "ibm,opal-phbid", &prop); + ret = of_get_pci_domain_nr(dn); + if (ret >= 0) { + prop = ret; + ret = 0; + } + if (ret) + ret = of_property_read_u64(dn, "ibm,opal-phbid", &prop); + if (ret) + ret = of_alias_get_id(dn, "pci"); + if (ret >= 0) { + prop = ret; + ret = 0; + } if (ret) { + u32 prop_32; ret = of_property_read_u32_index(dn, "reg", 1, &prop_32); prop = prop_32; } @@ -103,10 +117,7 @@ static int get_phb_number(struct device_node *dn) if ((phb_id >= 0) && !test_and_set_bit(phb_id, phb_bitmap)) return phb_id;
- /* - * If not pseries nor powernv, or if fixed PHB numbering tried to add - * the same PHB number twice, then fallback to dynamic PHB numbering. - */ + /* If everything fails then fallback to dynamic PHB numbering. */ phb_id = find_first_zero_bit(phb_bitmap, MAX_PHBS); BUG_ON(phb_id >= MAX_PHBS); set_bit(phb_id, phb_bitmap);
From: Miaoqian Lin linmq006@gmail.com
[ Upstream commit 6ac059dacffa8ab2f7798f20e4bd3333890c541c ]
of_find_node_by_path() returns remote device nodepointer with refcount incremented, we should use of_node_put() on it when done. Add missing of_node_put() to avoid refcount leak.
Fixes: 0afacde3df4c ("[POWERPC] spufs: allow isolated mode apps by starting the SPE loader") Signed-off-by: Miaoqian Lin linmq006@gmail.com Acked-by: Arnd Bergmann arnd@arndb.de Signed-off-by: Michael Ellerman mpe@ellerman.id.au Link: https://lore.kernel.org/r/20220603121543.22884-1-linmq006@gmail.com Signed-off-by: Sasha Levin sashal@kernel.org --- arch/powerpc/platforms/cell/spufs/inode.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/arch/powerpc/platforms/cell/spufs/inode.c b/arch/powerpc/platforms/cell/spufs/inode.c index db329d4bf1c3..8b664d9cfcd4 100644 --- a/arch/powerpc/platforms/cell/spufs/inode.c +++ b/arch/powerpc/platforms/cell/spufs/inode.c @@ -684,6 +684,7 @@ spufs_init_isolated_loader(void) return;
loader = of_get_property(dn, "loader", &size); + of_node_put(dn); if (!loader) return;
From: Miaoqian Lin linmq006@gmail.com
[ Upstream commit 255b650cbec6849443ce2e0cdd187fd5e61c218c ]
of_find_node_by_path() returns a node pointer with refcount incremented, we should use of_node_put() on it when done. Add missing of_node_put() to avoid refcount leak.
Fixes: eac1e731b59e ("powerpc/xive: guest exploitation of the XIVE interrupt controller") Signed-off-by: Miaoqian Lin linmq006@gmail.com Signed-off-by: Michael Ellerman mpe@ellerman.id.au Link: https://lore.kernel.org/r/20220605053225.56125-1-linmq006@gmail.com Signed-off-by: Sasha Levin sashal@kernel.org --- arch/powerpc/sysdev/xive/spapr.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/arch/powerpc/sysdev/xive/spapr.c b/arch/powerpc/sysdev/xive/spapr.c index 5566bbc86f4a..aa705732150c 100644 --- a/arch/powerpc/sysdev/xive/spapr.c +++ b/arch/powerpc/sysdev/xive/spapr.c @@ -631,6 +631,7 @@ static bool xive_get_max_prio(u8 *max_prio) }
reg = of_get_property(rootdn, "ibm,plat-res-int-priorities", &len); + of_node_put(rootdn); if (!reg) { pr_err("Failed to read 'ibm,plat-res-int-priorities' property\n"); return false;
From: Miaoqian Lin linmq006@gmail.com
[ Upstream commit df5d4b616ee76abc97e5bd348e22659c2b095b1c ]
of_get_next_parent() returns a node pointer with refcount incremented, we should use of_node_put() on it when not need anymore. Add missing of_node_put() in the error path to avoid refcount leak.
Fixes: ce21b3c9648a ("[CELL] add support for MSI on Axon-based Cell systems") Signed-off-by: Miaoqian Lin linmq006@gmail.com Signed-off-by: Michael Ellerman mpe@ellerman.id.au Link: https://lore.kernel.org/r/20220605065129.63906-1-linmq006@gmail.com Signed-off-by: Sasha Levin sashal@kernel.org --- arch/powerpc/platforms/cell/axon_msi.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/arch/powerpc/platforms/cell/axon_msi.c b/arch/powerpc/platforms/cell/axon_msi.c index 326d34e2aa02..946a09ae9fb2 100644 --- a/arch/powerpc/platforms/cell/axon_msi.c +++ b/arch/powerpc/platforms/cell/axon_msi.c @@ -230,6 +230,7 @@ static int setup_msi_msg_address(struct pci_dev *dev, struct msi_msg *msg) if (!prop) { dev_dbg(&dev->dev, "axon_msi: no msi-address-(32|64) properties found\n"); + of_node_put(dn); return -ENOENT; }
From: Chen Zhongjin chenzhongjin@huawei.com
[ Upstream commit 28f6c37a2910f565b4f5960df52b2eccae28c891 ]
kernel_text_address() treats ftrace_trampoline, kprobe_insn_slot and bpf_text_address as valid kprobe addresses - which is not ideal.
These text areas are removable and changeable without any notification to kprobes, and probing on them can trigger unexpected behavior:
https://lkml.org/lkml/2022/7/26/1148
Considering that jump_label and static_call text are already forbiden to probe, kernel_text_address() should be replaced with core_kernel_text() and is_module_text_address() to check other text areas which are unsafe to kprobe.
[ mingo: Rewrote the changelog. ]
Fixes: 5b485629ba0d ("kprobes, extable: Identify kprobes trampolines as kernel text area") Fixes: 74451e66d516 ("bpf: make jited programs visible in traces") Signed-off-by: Chen Zhongjin chenzhongjin@huawei.com Signed-off-by: Ingo Molnar mingo@kernel.org Acked-by: Masami Hiramatsu (Google) mhiramat@kernel.org Link: https://lore.kernel.org/r/20220801033719.228248-1-chenzhongjin@huawei.com Signed-off-by: Sasha Levin sashal@kernel.org --- kernel/kprobes.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/kernel/kprobes.c b/kernel/kprobes.c index 993b84cc1db5..099191716d4c 100644 --- a/kernel/kprobes.c +++ b/kernel/kprobes.c @@ -1566,7 +1566,8 @@ static int check_kprobe_address_safe(struct kprobe *p, preempt_disable();
/* Ensure it is not in reserved area nor out of text */ - if (!kernel_text_address((unsigned long) p->addr) || + if (!(core_kernel_text((unsigned long) p->addr) || + is_module_text_address((unsigned long) p->addr)) || within_kprobe_blacklist((unsigned long) p->addr) || jump_label_text_reserved(p->addr, p->addr) || find_bug((unsigned long)p->addr)) {
From: Michael Ellerman mpe@ellerman.id.au
[ Upstream commit f4b39e88b42d13366b831270306326b5c20971ca ]
The recent change to the PHB numbering logic has a logic error in the handling of "ibm,opal-phbid".
When an "ibm,opal-phbid" property is present, &prop is written to and ret is set to zero.
The following call to of_alias_get_id() is skipped because ret == 0.
But then the if (ret >= 0) is true, and the body of that if statement sets prop = ret which throws away the value that was just read from "ibm,opal-phbid".
Fix the logic by only doing the ret >= 0 check in the of_alias_get_id() case.
Fixes: 0fe1e96fef0a ("powerpc/pci: Prefer PCI domain assignment via DT 'linux,pci-domain' and alias") Reviewed-by: Pali Rohár pali@kernel.org Signed-off-by: Michael Ellerman mpe@ellerman.id.au Link: https://lore.kernel.org/r/20220802105723.1055178-1-mpe@ellerman.id.au Signed-off-by: Sasha Levin sashal@kernel.org --- arch/powerpc/kernel/pci-common.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-)
diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c index b0bd55f2ce3a..740dcbdd56d8 100644 --- a/arch/powerpc/kernel/pci-common.c +++ b/arch/powerpc/kernel/pci-common.c @@ -98,11 +98,13 @@ static int get_phb_number(struct device_node *dn) } if (ret) ret = of_property_read_u64(dn, "ibm,opal-phbid", &prop); - if (ret) + + if (ret) { ret = of_alias_get_id(dn, "pci"); - if (ret >= 0) { - prop = ret; - ret = 0; + if (ret >= 0) { + prop = ret; + ret = 0; + } } if (ret) { u32 prop_32;
From: Arnaldo Carvalho de Melo acme@redhat.com
[ Upstream commit 91cea6be90e436c55cde8770a15e4dac9d3032d0 ]
When genelf was introduced it tested for HAVE_LIBCRYPTO not HAVE_LIBCRYPTO_SUPPORT, which is the define the feature test for openssl defines, fix it.
This also adds disables the deprecation warning, someone has to fix this to build with openssl 3.0 before the warning becomes a hard error.
Fixes: 9b07e27f88b9cd78 ("perf inject: Add jitdump mmap injection support") Reported-by: 谭梓煊 tanzixuan.me@gmail.com Cc: Alexei Starovoitov ast@kernel.org Cc: Andrii Nakryiko andrii@kernel.org Cc: Daniel Borkmann daniel@iogearbox.net Cc: Jiri Olsa jolsa@kernel.org Cc: John Fastabend john.fastabend@gmail.com Cc: KP Singh kpsingh@kernel.org Cc: Martin KaFai Lau kafai@fb.com Cc: Nick Terrell terrelln@fb.com Cc: Song Liu songliubraving@fb.com Cc: Stephane Eranian eranian@google.com Link: http://lore.kernel.org/lkml/YulpPqXSOG0Q4J1o@kernel.org Signed-off-by: Arnaldo Carvalho de Melo acme@redhat.com Signed-off-by: Sasha Levin sashal@kernel.org --- tools/perf/util/genelf.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/tools/perf/util/genelf.c b/tools/perf/util/genelf.c index aafbe54fd3fa..afb8fe3a8e35 100644 --- a/tools/perf/util/genelf.c +++ b/tools/perf/util/genelf.c @@ -35,7 +35,11 @@
#define BUILD_ID_URANDOM /* different uuid for each run */
-#ifdef HAVE_LIBCRYPTO +// FIXME, remove this and fix the deprecation warnings before its removed and +// We'll break for good here... +#pragma GCC diagnostic ignored "-Wdeprecated-declarations" + +#ifdef HAVE_LIBCRYPTO_SUPPORT
#define BUILD_ID_MD5 #undef BUILD_ID_SHA /* does not seem to work well when linked with Java */
From: Josh Poimboeuf jpoimboe@kernel.org
[ Upstream commit b6a5068854cfe372da7dee3224dcf023ed5b00cb ]
Since commit dcea997beed6 ("faddr2line: Fix overlapping text section failures, the sequel"), faddr2line is completely broken on arm64.
For some reason, on arm64, the vmlinux ELF object file type is ET_DYN rather than ET_EXEC. Check for both when determining whether the object is vmlinux.
Modules and vmlinux.o have type ET_REL on all arches.
Fixes: dcea997beed6 ("faddr2line: Fix overlapping text section failures, the sequel") Reported-by: John Garry john.garry@huawei.com Signed-off-by: Josh Poimboeuf jpoimboe@kernel.org Signed-off-by: Ingo Molnar mingo@kernel.org Tested-by: John Garry john.garry@huawei.com Link: https://lore.kernel.org/r/dad1999737471b06d6188ce4cdb11329aa41682c.165842635... Signed-off-by: Sasha Levin sashal@kernel.org --- scripts/faddr2line | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/scripts/faddr2line b/scripts/faddr2line index 2571caac3156..70f8c3ecd555 100755 --- a/scripts/faddr2line +++ b/scripts/faddr2line @@ -112,7 +112,9 @@ __faddr2line() { # section offsets. local file_type=$(${READELF} --file-header $objfile | ${AWK} '$1 == "Type:" { print $2; exit }') - [[ $file_type = "EXEC" ]] && is_vmlinux=1 + if [[ $file_type = "EXEC" ]] || [[ $file_type == "DYN" ]]; then + is_vmlinux=1 + fi
# Go through each of the object's symbols which match the func name. # In rare cases there might be duplicates, in which case we print all
From: Siddh Raman Pant code@siddh.me
[ Upstream commit 625395c4a0f4775e0fe00f616888d2e6c1ba49db ]
GCC-12 started triggering a new warning:
arch/x86/mm/numa.c: In function ‘cpumask_of_node’: arch/x86/mm/numa.c:916:39: warning: the comparison will always evaluate as ‘false’ for the address of ‘node_to_cpumask_map’ will never be NULL [-Waddress] 916 | if (node_to_cpumask_map[node] == NULL) { | ^~
node_to_cpumask_map is of type cpumask_var_t[].
When CONFIG_CPUMASK_OFFSTACK is set, cpumask_var_t is typedef'd to a pointer for dynamic allocation, else to an array of one element. The "wicked game" can be checked on line 700 of include/linux/cpumask.h.
The original code in debug_cpumask_set_cpu() and cpumask_of_node() were probably written by the original authors with CONFIG_CPUMASK_OFFSTACK=y (i.e. dynamic allocation) in mind, checking if the cpumask was available via a direct NULL check.
When CONFIG_CPUMASK_OFFSTACK is not set, GCC gives the above warning while compiling the kernel.
Fix that by using cpumask_available(), which does the NULL check when CONFIG_CPUMASK_OFFSTACK is set, otherwise returns true. Use it wherever such checks are made.
Conditional definitions of cpumask_available() can be found along with the definition of cpumask_var_t. Check the cpumask.h reference mentioned above.
Fixes: c032ef60d1aa ("cpumask: convert node_to_cpumask_map[] to cpumask_var_t") Fixes: de2d9445f162 ("x86: Unify node_to_cpumask_map handling between 32 and 64bit") Signed-off-by: Siddh Raman Pant code@siddh.me Signed-off-by: Ingo Molnar mingo@kernel.org Link: https://lore.kernel.org/r/20220731160913.632092-1-code@siddh.me Signed-off-by: Sasha Levin sashal@kernel.org --- arch/x86/mm/numa.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/x86/mm/numa.c b/arch/x86/mm/numa.c index fa150855647c..b4ff063a4371 100644 --- a/arch/x86/mm/numa.c +++ b/arch/x86/mm/numa.c @@ -826,7 +826,7 @@ void debug_cpumask_set_cpu(int cpu, int node, bool enable) return; } mask = node_to_cpumask_map[node]; - if (!mask) { + if (!cpumask_available(mask)) { pr_err("node_to_cpumask_map[%i] NULL\n", node); dump_stack(); return; @@ -872,7 +872,7 @@ const struct cpumask *cpumask_of_node(int node) dump_stack(); return cpu_none_mask; } - if (node_to_cpumask_map[node] == NULL) { + if (!cpumask_available(node_to_cpumask_map[node])) { printk(KERN_WARNING "cpumask_of_node(%d): no node_to_cpumask_map!\n", node);
From: Zheyu Ma zheyuma97@gmail.com
[ Upstream commit 2f1c4523f7a3aaabe7e53d3ebd378292947e95c8 ]
Since the user can control the arguments of the ioctl() from the user space, under special arguments that may result in a divide-by-zero bug in: drivers/video/fbdev/arkfb.c:784: ark_set_pixclock(info, (hdiv * info->var.pixclock) / hmul); with hdiv=1, pixclock=1 and hmul=2 you end up with (1*1)/2 = (int) 0. and then in: drivers/video/fbdev/arkfb.c:504: rv = dac_set_freq(par->dac, 0, 1000000000 / pixclock); we'll get a division-by-zero.
The following log can reveal it:
divide error: 0000 [#1] PREEMPT SMP KASAN PTI RIP: 0010:ark_set_pixclock drivers/video/fbdev/arkfb.c:504 [inline] RIP: 0010:arkfb_set_par+0x10fc/0x24c0 drivers/video/fbdev/arkfb.c:784 Call Trace: fb_set_var+0x604/0xeb0 drivers/video/fbdev/core/fbmem.c:1034 do_fb_ioctl+0x234/0x670 drivers/video/fbdev/core/fbmem.c:1110 fb_ioctl+0xdd/0x130 drivers/video/fbdev/core/fbmem.c:1189
Fix this by checking the argument of ark_set_pixclock() first.
Fixes: 681e14730c73 ("arkfb: new framebuffer driver for ARK Logic cards") Signed-off-by: Zheyu Ma zheyuma97@gmail.com Signed-off-by: Helge Deller deller@gmx.de Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/video/fbdev/arkfb.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/drivers/video/fbdev/arkfb.c b/drivers/video/fbdev/arkfb.c index 13ba371e70aa..bfa221b68d71 100644 --- a/drivers/video/fbdev/arkfb.c +++ b/drivers/video/fbdev/arkfb.c @@ -778,7 +778,12 @@ static int arkfb_set_par(struct fb_info *info) return -EINVAL; }
- ark_set_pixclock(info, (hdiv * info->var.pixclock) / hmul); + value = (hdiv * info->var.pixclock) / hmul; + if (!value) { + fb_dbg(info, "invalid pixclock\n"); + value = 1; + } + ark_set_pixclock(info, value); svga_set_timings(par->state.vgabase, &ark_timing_regs, &(info->var), hmul, hdiv, (info->var.vmode & FB_VMODE_DOUBLE) ? 2 : 1, (info->var.vmode & FB_VMODE_INTERLACED) ? 2 : 1,
From: Florian Fainelli f.fainelli@gmail.com
[ Upstream commit 6c58cf40e3a1d2f47c09d3489857e9476316788a ]
A build with -D_FORTIFY_SOURCE=2 enabled will produce the following warnings:
sysfs.c:63:30: warning: '%s' directive output may be truncated writing up to 255 bytes into a region of size between 0 and 255 [-Wformat-truncation=] snprintf(filepath, 256, "%s/%s", path, filename); ^~ Bump up the buffer to PATH_MAX which is the limit and account for all of the possible NUL and separators that could lead to exceeding the allocated buffer sizes.
Fixes: 94f69966faf8 ("tools/thermal: Introduce tmon, a tool for thermal subsystem") Signed-off-by: Florian Fainelli f.fainelli@gmail.com Signed-off-by: Rafael J. Wysocki rafael.j.wysocki@intel.com Signed-off-by: Sasha Levin sashal@kernel.org --- tools/thermal/tmon/sysfs.c | 24 +++++++++++++----------- 1 file changed, 13 insertions(+), 11 deletions(-)
diff --git a/tools/thermal/tmon/sysfs.c b/tools/thermal/tmon/sysfs.c index 18f523557983..1b17cbc54c9d 100644 --- a/tools/thermal/tmon/sysfs.c +++ b/tools/thermal/tmon/sysfs.c @@ -22,6 +22,7 @@ #include <stdint.h> #include <dirent.h> #include <libintl.h> +#include <limits.h> #include <ctype.h> #include <time.h> #include <syslog.h> @@ -42,9 +43,9 @@ int sysfs_set_ulong(char *path, char *filename, unsigned long val) { FILE *fd; int ret = -1; - char filepath[256]; + char filepath[PATH_MAX + 2]; /* NUL and '/' */
- snprintf(filepath, 256, "%s/%s", path, filename); + snprintf(filepath, sizeof(filepath), "%s/%s", path, filename);
fd = fopen(filepath, "w"); if (!fd) { @@ -66,9 +67,9 @@ static int sysfs_get_ulong(char *path, char *filename, unsigned long *p_ulong) { FILE *fd; int ret = -1; - char filepath[256]; + char filepath[PATH_MAX + 2]; /* NUL and '/' */
- snprintf(filepath, 256, "%s/%s", path, filename); + snprintf(filepath, sizeof(filepath), "%s/%s", path, filename);
fd = fopen(filepath, "r"); if (!fd) { @@ -85,9 +86,9 @@ static int sysfs_get_string(char *path, char *filename, char *str) { FILE *fd; int ret = -1; - char filepath[256]; + char filepath[PATH_MAX + 2]; /* NUL and '/' */
- snprintf(filepath, 256, "%s/%s", path, filename); + snprintf(filepath, sizeof(filepath), "%s/%s", path, filename);
fd = fopen(filepath, "r"); if (!fd) { @@ -208,8 +209,8 @@ static int find_tzone_cdev(struct dirent *nl, char *tz_name, { unsigned long trip_instance = 0; char cdev_name_linked[256]; - char cdev_name[256]; - char cdev_trip_name[256]; + char cdev_name[PATH_MAX]; + char cdev_trip_name[PATH_MAX]; int cdev_id;
if (nl->d_type == DT_LNK) { @@ -222,7 +223,8 @@ static int find_tzone_cdev(struct dirent *nl, char *tz_name, return -EINVAL; } /* find the link to real cooling device record binding */ - snprintf(cdev_name, 256, "%s/%s", tz_name, nl->d_name); + snprintf(cdev_name, sizeof(cdev_name) - 2, "%s/%s", + tz_name, nl->d_name); memset(cdev_name_linked, 0, sizeof(cdev_name_linked)); if (readlink(cdev_name, cdev_name_linked, sizeof(cdev_name_linked) - 1) != -1) { @@ -235,8 +237,8 @@ static int find_tzone_cdev(struct dirent *nl, char *tz_name, /* find the trip point in which the cdev is binded to * in this tzone */ - snprintf(cdev_trip_name, 256, "%s%s", nl->d_name, - "_trip_point"); + snprintf(cdev_trip_name, sizeof(cdev_trip_name) - 1, + "%s%s", nl->d_name, "_trip_point"); sysfs_get_ulong(tz_name, cdev_trip_name, &trip_instance); /* validate trip point range, e.g. trip could return -1
From: Zheyu Ma zheyuma97@gmail.com
[ Upstream commit ec0754c60217248fa77cc9005d66b2b55200ac06 ]
In the function vt8623fb_set_par(), the value of 'screen_size' is calculated by the user input. If the user provides the improper value, the value of 'screen_size' may larger than 'info->screen_size', which may cause the following bug:
[ 583.339036] BUG: unable to handle page fault for address: ffffc90005000000 [ 583.339049] #PF: supervisor write access in kernel mode [ 583.339052] #PF: error_code(0x0002) - not-present page [ 583.339074] RIP: 0010:memset_orig+0x33/0xb0 [ 583.339110] Call Trace: [ 583.339118] vt8623fb_set_par+0x11cd/0x21e0 [ 583.339146] fb_set_var+0x604/0xeb0 [ 583.339181] do_fb_ioctl+0x234/0x670 [ 583.339209] fb_ioctl+0xdd/0x130
Fix the this by checking the value of 'screen_size' before memset_io().
Fixes: 558b7bd86c32 ("vt8623fb: new framebuffer driver for VIA VT8623") Signed-off-by: Zheyu Ma zheyuma97@gmail.com Signed-off-by: Helge Deller deller@gmx.de Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/video/fbdev/vt8623fb.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/video/fbdev/vt8623fb.c b/drivers/video/fbdev/vt8623fb.c index 5cac871db3ee..cbae9c510092 100644 --- a/drivers/video/fbdev/vt8623fb.c +++ b/drivers/video/fbdev/vt8623fb.c @@ -504,6 +504,8 @@ static int vt8623fb_set_par(struct fb_info *info) (info->var.vmode & FB_VMODE_DOUBLE) ? 2 : 1, 1, 1, info->node);
+ if (screen_size > info->screen_size) + screen_size = info->screen_size; memset_io(info->screen_base, 0x00, screen_size);
/* Device and screen back on */
From: Zheyu Ma zheyuma97@gmail.com
[ Upstream commit 96b550971c65d54d64728d8ba973487878a06454 ]
In the function arkfb_set_par(), the value of 'screen_size' is calculated by the user input. If the user provides the improper value, the value of 'screen_size' may larger than 'info->screen_size', which may cause the following bug:
[ 659.399066] BUG: unable to handle page fault for address: ffffc90003000000 [ 659.399077] #PF: supervisor write access in kernel mode [ 659.399079] #PF: error_code(0x0002) - not-present page [ 659.399094] RIP: 0010:memset_orig+0x33/0xb0 [ 659.399116] Call Trace: [ 659.399122] arkfb_set_par+0x143f/0x24c0 [ 659.399130] fb_set_var+0x604/0xeb0 [ 659.399161] do_fb_ioctl+0x234/0x670 [ 659.399189] fb_ioctl+0xdd/0x130
Fix the this by checking the value of 'screen_size' before memset_io().
Fixes: 681e14730c73 ("arkfb: new framebuffer driver for ARK Logic cards") Signed-off-by: Zheyu Ma zheyuma97@gmail.com Signed-off-by: Helge Deller deller@gmx.de Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/video/fbdev/arkfb.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/video/fbdev/arkfb.c b/drivers/video/fbdev/arkfb.c index bfa221b68d71..f7920987dd24 100644 --- a/drivers/video/fbdev/arkfb.c +++ b/drivers/video/fbdev/arkfb.c @@ -794,6 +794,8 @@ static int arkfb_set_par(struct fb_info *info) value = ((value * hmul / hdiv) / 8) - 5; vga_wcrt(par->state.vgabase, 0x42, (value + 1) / 2);
+ if (screen_size > info->screen_size) + screen_size = info->screen_size; memset_io(info->screen_base, 0x00, screen_size); /* Device and screen back on */ svga_wcrt_mask(par->state.vgabase, 0x17, 0x80, 0x80);
From: Zheyu Ma zheyuma97@gmail.com
[ Upstream commit 6ba592fa014f21f35a8ee8da4ca7b95a018f13e8 ]
In the function s3fb_set_par(), the value of 'screen_size' is calculated by the user input. If the user provides the improper value, the value of 'screen_size' may larger than 'info->screen_size', which may cause the following bug:
[ 54.083733] BUG: unable to handle page fault for address: ffffc90003000000 [ 54.083742] #PF: supervisor write access in kernel mode [ 54.083744] #PF: error_code(0x0002) - not-present page [ 54.083760] RIP: 0010:memset_orig+0x33/0xb0 [ 54.083782] Call Trace: [ 54.083788] s3fb_set_par+0x1ec6/0x4040 [ 54.083806] fb_set_var+0x604/0xeb0 [ 54.083836] do_fb_ioctl+0x234/0x670
Fix the this by checking the value of 'screen_size' before memset_io().
Fixes: a268422de8bf ("fbdev driver for S3 Trio/Virge") Signed-off-by: Zheyu Ma zheyuma97@gmail.com Signed-off-by: Helge Deller deller@gmx.de Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/video/fbdev/s3fb.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/video/fbdev/s3fb.c b/drivers/video/fbdev/s3fb.c index d63f23e26f7d..b17b806b4187 100644 --- a/drivers/video/fbdev/s3fb.c +++ b/drivers/video/fbdev/s3fb.c @@ -902,6 +902,8 @@ static int s3fb_set_par(struct fb_info *info) value = clamp((htotal + hsstart + 1) / 2 + 2, hsstart + 4, htotal + 1); svga_wcrt_multi(par->state.vgabase, s3_dtpc_regs, value);
+ if (screen_size > info->screen_size) + screen_size = info->screen_size; memset_io(info->screen_base, 0x00, screen_size); /* Device and screen back on */ svga_wcrt_mask(par->state.vgabase, 0x17, 0x80, 0x80);
From: Steffen Maier maier@linux.ibm.com
commit 4da8c5f76825269f28d6a89fa752934a4bcb6dfa upstream.
Case (1): The only waiter on wka_port->completion_wq is zfcp_fc_wka_port_get() trying to open a WKA port. As such it should only be woken up by WKA port *open* responses, not by WKA port close responses.
Case (2): A close WKA port response coming in just after having sent a new open WKA port request and before blocking for the open response with wait_event() in zfcp_fc_wka_port_get() erroneously renders the wait_event a NOP because the close handler overwrites wka_port->status. Hence the wait_event condition is erroneously true and it does not enter blocking state.
With non-negligible probability, the following time space sequence happens depending on timing without this fix:
user process ERP thread zfcp work queue tasklet system work queue ============ ========== =============== ======= ================= $ echo 1 > online zfcp_ccw_set_online zfcp_ccw_activate zfcp_erp_adapter_reopen msleep scan backoff zfcp_erp_strategy | ... | zfcp_erp_action_cleanup | ... | queue delayed scan_work | queue ns_up_work | ns_up_work: | zfcp_fc_wka_port_get | open wka request | open response | GSPN FC-GS | RSPN FC-GS [NPIV-only] | zfcp_fc_wka_port_put | (--wka->refcount==0) | sched delayed wka->work | ~~~Case (1)~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ zfcp_erp_wait flush scan_work | wka->work: | wka->status=CLOSING | close wka request | scan_work: | zfcp_fc_wka_port_get | (wka->status==CLOSING) | wka->status=OPENING | open wka request | wait_event | | close response | | wka->status=OFFLINE | | wake_up /*WRONG*/ ~~~Case (2)~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | wka->work: | wka->status=CLOSING | close wka request zfcp_erp_wait flush scan_work | scan_work: | zfcp_fc_wka_port_get | (wka->status==CLOSING) | wka->status=OPENING | open wka request | close response | wka->status=OFFLINE | wake_up /*WRONG&NOP*/ | wait_event /*NOP*/ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | (wka->status!=ONLINE) | return -EIO | return early open response wka->status=ONLINE wake_up /*NOP*/
So we erroneously end up with no automatic port scan. This is a big problem when it happens during boot. The timing is influenced by v3.19 commit 18f87a67e6d6 ("zfcp: auto port scan resiliency").
Fix it by fully mutually excluding zfcp_fc_wka_port_get() and zfcp_fc_wka_port_offline(). For that to work, we make the latter block until we got the response for a close WKA port. In order not to penalize the system workqueue, we move wka_port->work to our own adapter workqueue. Note that before v2.6.30 commit 828bc1212a68 ("[SCSI] zfcp: Set WKA-port to offline on adapter deactivation"), zfcp did block in zfcp_fc_wka_port_offline() as well, but with a different condition.
While at it, make non-functional cleanups to improve code reading in zfcp_fc_wka_port_get(). If we cannot send the WKA port open request, don't rely on the subsequent wait_event condition to immediately let this case pass without blocking. Also don't want to rely on the additional condition handling the refcount to be skipped just to finally return with -EIO.
Link: https://lore.kernel.org/r/20220729162529.1620730-1-maier@linux.ibm.com Fixes: 5ab944f97e09 ("[SCSI] zfcp: attach and release SAN nameserver port on demand") Cc: stable@vger.kernel.org #v2.6.28+ Reviewed-by: Benjamin Block bblock@linux.ibm.com Signed-off-by: Steffen Maier maier@linux.ibm.com Signed-off-by: Martin K. Petersen martin.petersen@oracle.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/s390/scsi/zfcp_fc.c | 29 ++++++++++++++++++++--------- drivers/s390/scsi/zfcp_fc.h | 6 ++++-- drivers/s390/scsi/zfcp_fsf.c | 4 ++-- 3 files changed, 26 insertions(+), 13 deletions(-)
--- a/drivers/s390/scsi/zfcp_fc.c +++ b/drivers/s390/scsi/zfcp_fc.c @@ -145,27 +145,33 @@ void zfcp_fc_enqueue_event(struct zfcp_a
static int zfcp_fc_wka_port_get(struct zfcp_fc_wka_port *wka_port) { + int ret = -EIO; + if (mutex_lock_interruptible(&wka_port->mutex)) return -ERESTARTSYS;
if (wka_port->status == ZFCP_FC_WKA_PORT_OFFLINE || wka_port->status == ZFCP_FC_WKA_PORT_CLOSING) { wka_port->status = ZFCP_FC_WKA_PORT_OPENING; - if (zfcp_fsf_open_wka_port(wka_port)) + if (zfcp_fsf_open_wka_port(wka_port)) { + /* could not even send request, nothing to wait for */ wka_port->status = ZFCP_FC_WKA_PORT_OFFLINE; + goto out; + } }
- mutex_unlock(&wka_port->mutex); - - wait_event(wka_port->completion_wq, + wait_event(wka_port->opened, wka_port->status == ZFCP_FC_WKA_PORT_ONLINE || wka_port->status == ZFCP_FC_WKA_PORT_OFFLINE);
if (wka_port->status == ZFCP_FC_WKA_PORT_ONLINE) { atomic_inc(&wka_port->refcount); - return 0; + ret = 0; + goto out; } - return -EIO; +out: + mutex_unlock(&wka_port->mutex); + return ret; }
static void zfcp_fc_wka_port_offline(struct work_struct *work) @@ -181,9 +187,12 @@ static void zfcp_fc_wka_port_offline(str
wka_port->status = ZFCP_FC_WKA_PORT_CLOSING; if (zfcp_fsf_close_wka_port(wka_port)) { + /* could not even send request, nothing to wait for */ wka_port->status = ZFCP_FC_WKA_PORT_OFFLINE; - wake_up(&wka_port->completion_wq); + goto out; } + wait_event(wka_port->closed, + wka_port->status == ZFCP_FC_WKA_PORT_OFFLINE); out: mutex_unlock(&wka_port->mutex); } @@ -193,13 +202,15 @@ static void zfcp_fc_wka_port_put(struct if (atomic_dec_return(&wka_port->refcount) != 0) return; /* wait 10 milliseconds, other reqs might pop in */ - schedule_delayed_work(&wka_port->work, HZ / 100); + queue_delayed_work(wka_port->adapter->work_queue, &wka_port->work, + msecs_to_jiffies(10)); }
static void zfcp_fc_wka_port_init(struct zfcp_fc_wka_port *wka_port, u32 d_id, struct zfcp_adapter *adapter) { - init_waitqueue_head(&wka_port->completion_wq); + init_waitqueue_head(&wka_port->opened); + init_waitqueue_head(&wka_port->closed);
wka_port->adapter = adapter; wka_port->d_id = d_id; --- a/drivers/s390/scsi/zfcp_fc.h +++ b/drivers/s390/scsi/zfcp_fc.h @@ -170,7 +170,8 @@ enum zfcp_fc_wka_status { /** * struct zfcp_fc_wka_port - representation of well-known-address (WKA) FC port * @adapter: Pointer to adapter structure this WKA port belongs to - * @completion_wq: Wait for completion of open/close command + * @opened: Wait for completion of open command + * @closed: Wait for completion of close command * @status: Current status of WKA port * @refcount: Reference count to keep port open as long as it is in use * @d_id: FC destination id or well-known-address @@ -180,7 +181,8 @@ enum zfcp_fc_wka_status { */ struct zfcp_fc_wka_port { struct zfcp_adapter *adapter; - wait_queue_head_t completion_wq; + wait_queue_head_t opened; + wait_queue_head_t closed; enum zfcp_fc_wka_status status; atomic_t refcount; u32 d_id; --- a/drivers/s390/scsi/zfcp_fsf.c +++ b/drivers/s390/scsi/zfcp_fsf.c @@ -1592,7 +1592,7 @@ static void zfcp_fsf_open_wka_port_handl wka_port->status = ZFCP_FC_WKA_PORT_ONLINE; } out: - wake_up(&wka_port->completion_wq); + wake_up(&wka_port->opened); }
/** @@ -1650,7 +1650,7 @@ static void zfcp_fsf_close_wka_port_hand }
wka_port->status = ZFCP_FC_WKA_PORT_OFFLINE; - wake_up(&wka_port->completion_wq); + wake_up(&wka_port->closed); }
/**
From: Alexander Lobakin alexandr.lobakin@intel.com
commit 3a2ba42cbd0b669ce3837ba400905f93dd06c79f upstream.
The bitops compile-time optimization series revealed one more problem in olpc-xo1-sci.c:send_ebook_state(), resulted in GCC warnings:
arch/x86/platform/olpc/olpc-xo1-sci.c: In function 'send_ebook_state': arch/x86/platform/olpc/olpc-xo1-sci.c:83:63: warning: logical not is only applied to the left hand side of comparison [-Wlogical-not-parentheses] 83 | if (!!test_bit(SW_TABLET_MODE, ebook_switch_idev->sw) == state) | ^~ arch/x86/platform/olpc/olpc-xo1-sci.c:83:13: note: add parentheses around left hand side expression to silence this warning
Despite this code working as intended, this redundant double negation of boolean value, together with comparing to `char` with no explicit conversion to bool, makes compilers think the author made some unintentional logical mistakes here. Make it the other way around and negate the char instead to silence the warnings.
Fixes: d2aa37411b8e ("x86/olpc/xo1/sci: Produce wakeup events for buttons and switches") Cc: stable@vger.kernel.org # 3.5+ Reported-by: Guenter Roeck linux@roeck-us.net Reported-by: kernel test robot lkp@intel.com Reviewed-and-tested-by: Guenter Roeck linux@roeck-us.net Signed-off-by: Alexander Lobakin alexandr.lobakin@intel.com Signed-off-by: Yury Norov yury.norov@gmail.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/x86/platform/olpc/olpc-xo1-sci.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/x86/platform/olpc/olpc-xo1-sci.c +++ b/arch/x86/platform/olpc/olpc-xo1-sci.c @@ -85,7 +85,7 @@ static void send_ebook_state(void) return; }
- if (!!test_bit(SW_TABLET_MODE, ebook_switch_idev->sw) == state) + if (test_bit(SW_TABLET_MODE, ebook_switch_idev->sw) == !!state) return; /* Nothing new to report. */
input_report_switch(ebook_switch_idev, SW_TABLET_MODE, state);
From: David Collins quic_collinsd@quicinc.com
commit 2af28b241eea816e6f7668d1954f15894b45d7e3 upstream.
trace_spmi_write_begin() and trace_spmi_read_end() both call memcpy() with a length of "len + 1". This leads to one extra byte being read beyond the end of the specified buffer. Fix this out-of-bound memory access by using a length of "len" instead.
Here is a KASAN log showing the issue:
BUG: KASAN: stack-out-of-bounds in trace_event_raw_event_spmi_read_end+0x1d0/0x234 Read of size 2 at addr ffffffc0265b7540 by task thermal@2.0-ser/1314 ... Call trace: dump_backtrace+0x0/0x3e8 show_stack+0x2c/0x3c dump_stack_lvl+0xdc/0x11c print_address_description+0x74/0x384 kasan_report+0x188/0x268 kasan_check_range+0x270/0x2b0 memcpy+0x90/0xe8 trace_event_raw_event_spmi_read_end+0x1d0/0x234 spmi_read_cmd+0x294/0x3ac spmi_ext_register_readl+0x84/0x9c regmap_spmi_ext_read+0x144/0x1b0 [regmap_spmi] _regmap_raw_read+0x40c/0x754 regmap_raw_read+0x3a0/0x514 regmap_bulk_read+0x418/0x494 adc5_gen3_poll_wait_hs+0xe8/0x1e0 [qcom_spmi_adc5_gen3] ... __arm64_sys_read+0x4c/0x60 invoke_syscall+0x80/0x218 el0_svc_common+0xec/0x1c8 ...
addr ffffffc0265b7540 is located in stack of task thermal@2.0-ser/1314 at offset 32 in frame: adc5_gen3_poll_wait_hs+0x0/0x1e0 [qcom_spmi_adc5_gen3]
this frame has 1 object: [32, 33) 'status'
Memory state around the buggy address: ffffffc0265b7400: 00 00 00 00 00 00 00 00 00 00 00 00 f1 f1 f1 f1 ffffffc0265b7480: 04 f3 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00
ffffffc0265b7500: 00 00 00 00 f1 f1 f1 f1 01 f3 f3 f3 00 00 00 00
^ ffffffc0265b7580: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffffffc0265b7600: f1 f1 f1 f1 01 f2 07 f2 f2 f2 01 f3 00 00 00 00 ==================================================================
Fixes: a9fce374815d ("spmi: add command tracepoints for SPMI") Cc: stable@vger.kernel.org Reviewed-by: Stephen Boyd sboyd@kernel.org Acked-by: Steven Rostedt (Google) rostedt@goodmis.org Signed-off-by: David Collins quic_collinsd@quicinc.com Link: https://lore.kernel.org/r/20220627235512.2272783-1-quic_collinsd@quicinc.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- include/trace/events/spmi.h | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-)
--- a/include/trace/events/spmi.h +++ b/include/trace/events/spmi.h @@ -21,15 +21,15 @@ TRACE_EVENT(spmi_write_begin, __field ( u8, sid ) __field ( u16, addr ) __field ( u8, len ) - __dynamic_array ( u8, buf, len + 1 ) + __dynamic_array ( u8, buf, len ) ),
TP_fast_assign( __entry->opcode = opcode; __entry->sid = sid; __entry->addr = addr; - __entry->len = len + 1; - memcpy(__get_dynamic_array(buf), buf, len + 1); + __entry->len = len; + memcpy(__get_dynamic_array(buf), buf, len); ),
TP_printk("opc=%d sid=%02d addr=0x%04x len=%d buf=0x[%*phD]", @@ -92,7 +92,7 @@ TRACE_EVENT(spmi_read_end, __field ( u16, addr ) __field ( int, ret ) __field ( u8, len ) - __dynamic_array ( u8, buf, len + 1 ) + __dynamic_array ( u8, buf, len ) ),
TP_fast_assign( @@ -100,8 +100,8 @@ TRACE_EVENT(spmi_read_end, __entry->sid = sid; __entry->addr = addr; __entry->ret = ret; - __entry->len = len + 1; - memcpy(__get_dynamic_array(buf), buf, len + 1); + __entry->len = len; + memcpy(__get_dynamic_array(buf), buf, len); ),
TP_printk("opc=%d sid=%02d addr=0x%04x ret=%d len=%02d buf=0x[%*phD]",
From: Baokun Li libaokun1@huawei.com
commit 179b14152dcb6a24c3415200603aebca70ff13af upstream.
When adding an xattr to an inode, we must ensure that the inode_size is not less than EXT4_GOOD_OLD_INODE_SIZE + extra_isize + pad. Otherwise, the end position may be greater than the start position, resulting in UAF.
Signed-off-by: Baokun Li libaokun1@huawei.com Reviewed-by: Jan Kara jack@suse.cz Reviewed-by: Ritesh Harjani (IBM) ritesh.list@gmail.com Link: https://lore.kernel.org/r/20220616021358.2504451-2-libaokun1@huawei.com Signed-off-by: Theodore Ts'o tytso@mit.edu Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- fs/ext4/xattr.h | 13 +++++++++++++ 1 file changed, 13 insertions(+)
--- a/fs/ext4/xattr.h +++ b/fs/ext4/xattr.h @@ -95,6 +95,19 @@ struct ext4_xattr_entry {
#define EXT4_ZERO_XATTR_VALUE ((void *)-1)
+/* + * If we want to add an xattr to the inode, we should make sure that + * i_extra_isize is not 0 and that the inode size is not less than + * EXT4_GOOD_OLD_INODE_SIZE + extra_isize + pad. + * EXT4_GOOD_OLD_INODE_SIZE extra_isize header entry pad data + * |--------------------------|------------|------|---------|---|-------| + */ +#define EXT4_INODE_HAS_XATTR_SPACE(inode) \ + ((EXT4_I(inode)->i_extra_isize != 0) && \ + (EXT4_GOOD_OLD_INODE_SIZE + EXT4_I(inode)->i_extra_isize + \ + sizeof(struct ext4_xattr_ibody_header) + EXT4_XATTR_PAD <= \ + EXT4_INODE_SIZE((inode)->i_sb))) + struct ext4_xattr_info { const char *name; const void *value;
From: Lukas Czerner lczerner@redhat.com
commit b8a04fe77ef1360fbf73c80fddbdfeaa9407ed1b upstream.
ext4_append() must always allocate a new block, otherwise we run the risk of overwriting existing directory block corrupting the directory tree in the process resulting in all manner of problems later on.
Add a sanity check to see if the logical block is already allocated and error out if it is.
Cc: stable@kernel.org Signed-off-by: Lukas Czerner lczerner@redhat.com Reviewed-by: Andreas Dilger adilger@dilger.ca Link: https://lore.kernel.org/r/20220704142721.157985-2-lczerner@redhat.com Signed-off-by: Theodore Ts'o tytso@mit.edu Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- fs/ext4/namei.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+)
--- a/fs/ext4/namei.c +++ b/fs/ext4/namei.c @@ -53,6 +53,7 @@ static struct buffer_head *ext4_append(h struct inode *inode, ext4_lblk_t *block) { + struct ext4_map_blocks map; struct buffer_head *bh; int err;
@@ -62,6 +63,21 @@ static struct buffer_head *ext4_append(h return ERR_PTR(-ENOSPC);
*block = inode->i_size >> inode->i_sb->s_blocksize_bits; + map.m_lblk = *block; + map.m_len = 1; + + /* + * We're appending new directory block. Make sure the block is not + * allocated yet, otherwise we will end up corrupting the + * directory. + */ + err = ext4_map_blocks(NULL, inode, &map, 0); + if (err < 0) + return ERR_PTR(err); + if (err) { + EXT4_ERROR_INODE(inode, "Logical block already allocated"); + return ERR_PTR(-EFSCORRUPTED); + }
bh = ext4_bread(handle, inode, *block, EXT4_GET_BLOCKS_CREATE); if (IS_ERR(bh))
From: Baokun Li libaokun1@huawei.com
commit 67d7d8ad99beccd9fe92d585b87f1760dc9018e3 upstream.
Hulk Robot reported a issue: ================================================================== BUG: KASAN: use-after-free in ext4_xattr_set_entry+0x18ab/0x3500 Write of size 4105 at addr ffff8881675ef5f4 by task syz-executor.0/7092
CPU: 1 PID: 7092 Comm: syz-executor.0 Not tainted 4.19.90-dirty #17 Call Trace: [...] memcpy+0x34/0x50 mm/kasan/kasan.c:303 ext4_xattr_set_entry+0x18ab/0x3500 fs/ext4/xattr.c:1747 ext4_xattr_ibody_inline_set+0x86/0x2a0 fs/ext4/xattr.c:2205 ext4_xattr_set_handle+0x940/0x1300 fs/ext4/xattr.c:2386 ext4_xattr_set+0x1da/0x300 fs/ext4/xattr.c:2498 __vfs_setxattr+0x112/0x170 fs/xattr.c:149 __vfs_setxattr_noperm+0x11b/0x2a0 fs/xattr.c:180 __vfs_setxattr_locked+0x17b/0x250 fs/xattr.c:238 vfs_setxattr+0xed/0x270 fs/xattr.c:255 setxattr+0x235/0x330 fs/xattr.c:520 path_setxattr+0x176/0x190 fs/xattr.c:539 __do_sys_lsetxattr fs/xattr.c:561 [inline] __se_sys_lsetxattr fs/xattr.c:557 [inline] __x64_sys_lsetxattr+0xc2/0x160 fs/xattr.c:557 do_syscall_64+0xdf/0x530 arch/x86/entry/common.c:298 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x459fe9 RSP: 002b:00007fa5e54b4c08 EFLAGS: 00000246 ORIG_RAX: 00000000000000bd RAX: ffffffffffffffda RBX: 000000000051bf60 RCX: 0000000000459fe9 RDX: 00000000200003c0 RSI: 0000000020000180 RDI: 0000000020000140 RBP: 000000000051bf60 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000001009 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc73c93fc0 R14: 000000000051bf60 R15: 00007fa5e54b4d80 [...] ==================================================================
Above issue may happen as follows: ------------------------------------- ext4_xattr_set ext4_xattr_set_handle ext4_xattr_ibody_find >> s->end < s->base >> no EXT4_STATE_XATTR >> xattr_check_inode is not executed ext4_xattr_ibody_set ext4_xattr_set_entry >> size_t min_offs = s->end - s->base >> UAF in memcpy
we can easily reproduce this problem with the following commands: mkfs.ext4 -F /dev/sda mount -o debug_want_extra_isize=128 /dev/sda /mnt touch /mnt/file setfattr -n user.cat -v `seq -s z 4096|tr -d '[:digit:]'` /mnt/file
In ext4_xattr_ibody_find, we have the following assignment logic: header = IHDR(inode, raw_inode) = raw_inode + EXT4_GOOD_OLD_INODE_SIZE + i_extra_isize is->s.base = IFIRST(header) = header + sizeof(struct ext4_xattr_ibody_header) is->s.end = raw_inode + s_inode_size
In ext4_xattr_set_entry min_offs = s->end - s->base = s_inode_size - EXT4_GOOD_OLD_INODE_SIZE - i_extra_isize - sizeof(struct ext4_xattr_ibody_header) last = s->first free = min_offs - ((void *)last - s->base) - sizeof(__u32) = s_inode_size - EXT4_GOOD_OLD_INODE_SIZE - i_extra_isize - sizeof(struct ext4_xattr_ibody_header) - sizeof(__u32)
In the calculation formula, all values except s_inode_size and i_extra_size are fixed values. When i_extra_size is the maximum value s_inode_size - EXT4_GOOD_OLD_INODE_SIZE, min_offs is -4 and free is -8. The value overflows. As a result, the preceding issue is triggered when memcpy is executed.
Therefore, when finding xattr or setting xattr, check whether there is space for storing xattr in the inode to resolve this issue.
Cc: stable@kernel.org Reported-by: Hulk Robot hulkci@huawei.com Signed-off-by: Baokun Li libaokun1@huawei.com Reviewed-by: Ritesh Harjani (IBM) ritesh.list@gmail.com Reviewed-by: Jan Kara jack@suse.cz Link: https://lore.kernel.org/r/20220616021358.2504451-3-libaokun1@huawei.com Signed-off-by: Theodore Ts'o tytso@mit.edu Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- fs/ext4/xattr.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-)
--- a/fs/ext4/xattr.c +++ b/fs/ext4/xattr.c @@ -2188,8 +2188,9 @@ int ext4_xattr_ibody_find(struct inode * struct ext4_inode *raw_inode; int error;
- if (EXT4_I(inode)->i_extra_isize == 0) + if (!EXT4_INODE_HAS_XATTR_SPACE(inode)) return 0; + raw_inode = ext4_raw_inode(&is->iloc); header = IHDR(inode, raw_inode); is->s.base = is->s.first = IFIRST(header); @@ -2217,8 +2218,9 @@ int ext4_xattr_ibody_inline_set(handle_t struct ext4_xattr_search *s = &is->s; int error;
- if (EXT4_I(inode)->i_extra_isize == 0) + if (!EXT4_INODE_HAS_XATTR_SPACE(inode)) return -ENOSPC; + error = ext4_xattr_set_entry(i, s, handle, inode, false /* is_block */); if (error) return error;
From: Theodore Ts'o tytso@mit.edu
commit de394a86658ffe4e89e5328fd4993abfe41b7435 upstream.
When doing an online resize, the on-disk superblock on-disk wasn't updated. This means that when the file system is unmounted and remounted, and the on-disk overhead value is non-zero, this would result in the results of statfs(2) to be incorrect.
This was partially fixed by Commits 10b01ee92df5 ("ext4: fix overhead calculation to account for the reserved gdt blocks"), 85d825dbf489 ("ext4: force overhead calculation if the s_overhead_cluster makes no sense"), and eb7054212eac ("ext4: update the cached overhead value in the superblock").
However, since it was too expensive to forcibly recalculate the overhead for bigalloc file systems at every mount, this didn't fix the problem for bigalloc file systems. This commit should address the problem when resizing file systems with the bigalloc feature enabled.
Signed-off-by: Theodore Ts'o tytso@mit.edu Cc: stable@kernel.org Reviewed-by: Andreas Dilger adilger@dilger.ca Link: https://lore.kernel.org/r/20220629040026.112371-1-tytso@mit.edu Signed-off-by: Theodore Ts'o tytso@mit.edu Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- fs/ext4/resize.c | 1 + 1 file changed, 1 insertion(+)
--- a/fs/ext4/resize.c +++ b/fs/ext4/resize.c @@ -1483,6 +1483,7 @@ static void ext4_update_super(struct sup * Update the fs overhead information */ ext4_calculate_overhead(sb); + es->s_overhead_clusters = cpu_to_le32(sbi->s_overhead);
if (test_opt(sb, DEBUG)) printk(KERN_DEBUG "EXT4-fs: added group %u:"
From: Eric Whitney enwlinux@gmail.com
commit 7f0d8e1d607c1a4fa9a27362a108921d82230874 upstream.
A race can occur in the unlikely event ext4 is unable to allocate a physical cluster for a delayed allocation in a bigalloc file system during writeback. Failure to allocate a cluster forces error recovery that includes a call to mpage_release_unused_pages(). That function removes any corresponding delayed allocated blocks from the extent status tree. If a new delayed write is in progress on the same cluster simultaneously, resulting in the addition of an new extent containing one or more blocks in that cluster to the extent status tree, delayed block accounting can be thrown off if that delayed write then encounters a similar cluster allocation failure during future writeback.
Write lock the i_data_sem in mpage_release_unused_pages() to fix this problem. Ext4's block/cluster accounting code for bigalloc relies on i_data_sem for mutual exclusion, as is found in the delayed write path, and the locking in mpage_release_unused_pages() is missing.
Cc: stable@kernel.org Reported-by: Ye Bin yebin10@huawei.com Signed-off-by: Eric Whitney enwlinux@gmail.com Link: https://lore.kernel.org/r/20220615160530.1928801-1-enwlinux@gmail.com Signed-off-by: Theodore Ts'o tytso@mit.edu Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- fs/ext4/inode.c | 7 +++++++ 1 file changed, 7 insertions(+)
--- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -1755,7 +1755,14 @@ static void mpage_release_unused_pages(s ext4_lblk_t start, last; start = index << (PAGE_SHIFT - inode->i_blkbits); last = end << (PAGE_SHIFT - inode->i_blkbits); + + /* + * avoid racing with extent status tree scans made by + * ext4_insert_delayed_block() + */ + down_write(&EXT4_I(inode)->i_data_sem); ext4_es_remove_extent(inode, start, last - start + 1); + up_write(&EXT4_I(inode)->i_data_sem); }
pagevec_init(&pvec);
From: Baokun Li libaokun1@huawei.com
commit c9fd167d57133c5b748d16913c4eabc55e531c73 upstream.
If the ext4 inode does not have xattr space, 0 is returned in the get_max_inline_xattr_value_size function. Otherwise, the function returns a negative value when the inode does not contain EXT4_STATE_XATTR.
Cc: stable@kernel.org Signed-off-by: Baokun Li libaokun1@huawei.com Reviewed-by: Ritesh Harjani (IBM) ritesh.list@gmail.com Reviewed-by: Jan Kara jack@suse.cz Link: https://lore.kernel.org/r/20220616021358.2504451-4-libaokun1@huawei.com Signed-off-by: Theodore Ts'o tytso@mit.edu Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- fs/ext4/inline.c | 3 +++ 1 file changed, 3 insertions(+)
--- a/fs/ext4/inline.c +++ b/fs/ext4/inline.c @@ -34,6 +34,9 @@ static int get_max_inline_xattr_value_si struct ext4_inode *raw_inode; int free, min_offs;
+ if (!EXT4_INODE_HAS_XATTR_SPACE(inode)) + return 0; + min_offs = EXT4_SB(inode->i_sb)->s_inode_size - EXT4_GOOD_OLD_INODE_SIZE - EXT4_I(inode)->i_extra_isize -
From: Baokun Li libaokun1@huawei.com
commit fd7e672ea98b95b9d4c9dae316639f03c16a749d upstream.
Use the EXT4_INODE_HAS_XATTR_SPACE macro to more accurately determine whether the inode have xattr space.
Cc: stable@kernel.org Signed-off-by: Baokun Li libaokun1@huawei.com Reviewed-by: Ritesh Harjani (IBM) ritesh.list@gmail.com Reviewed-by: Jan Kara jack@suse.cz Link: https://lore.kernel.org/r/20220616021358.2504451-5-libaokun1@huawei.com Signed-off-by: Theodore Ts'o tytso@mit.edu Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- fs/ext4/inode.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)
--- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -4844,8 +4844,7 @@ static inline int ext4_iget_extra_inode( __le32 *magic = (void *)raw_inode + EXT4_GOOD_OLD_INODE_SIZE + ei->i_extra_isize;
- if (EXT4_GOOD_OLD_INODE_SIZE + ei->i_extra_isize + sizeof(__le32) <= - EXT4_INODE_SIZE(inode->i_sb) && + if (EXT4_INODE_HAS_XATTR_SPACE(inode) && *magic == cpu_to_le32(EXT4_XATTR_MAGIC)) { ext4_set_inode_state(inode, EXT4_STATE_XATTR); return ext4_find_inline_data_nolock(inode);
From: Alexander Shishkin alexander.shishkin@linux.intel.com
commit ff46a601afc5a66a81c3945b83d0a2caeb88e8bc upstream.
Add support for the Trace Hub in Raptor Lake-S CPU.
Reviewed-by: Andy Shevchenko andriy.shevchenko@linux.intel.com Cc: stable stable@kernel.org Signed-off-by: Alexander Shishkin alexander.shishkin@linux.intel.com Link: https://lore.kernel.org/r/20220705082637.59979-7-alexander.shishkin@linux.in... Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/hwtracing/intel_th/pci.c | 5 +++++ 1 file changed, 5 insertions(+)
--- a/drivers/hwtracing/intel_th/pci.c +++ b/drivers/hwtracing/intel_th/pci.c @@ -246,6 +246,11 @@ static const struct pci_device_id intel_ .driver_data = (kernel_ulong_t)&intel_th_2x, }, { + /* Raptor Lake-S CPU */ + PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xa76f), + .driver_data = (kernel_ulong_t)&intel_th_2x, + }, + { /* Rocket Lake CPU */ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x4c19), .driver_data = (kernel_ulong_t)&intel_th_2x,
From: Alexander Shishkin alexander.shishkin@linux.intel.com
commit 23e2de5826e2fc4dd43e08bab3a2ea1a5338b063 upstream.
Add support for the Trace Hub in Raptor Lake-S PCH.
Reviewed-by: Andy Shevchenko andriy.shevchenko@linux.intel.com Cc: stable stable@kernel.org Signed-off-by: Alexander Shishkin alexander.shishkin@linux.intel.com Link: https://lore.kernel.org/r/20220705082637.59979-6-alexander.shishkin@linux.in... Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/hwtracing/intel_th/pci.c | 5 +++++ 1 file changed, 5 insertions(+)
--- a/drivers/hwtracing/intel_th/pci.c +++ b/drivers/hwtracing/intel_th/pci.c @@ -251,6 +251,11 @@ static const struct pci_device_id intel_ .driver_data = (kernel_ulong_t)&intel_th_2x, }, { + /* Raptor Lake-S */ + PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x7a26), + .driver_data = (kernel_ulong_t)&intel_th_2x, + }, + { /* Rocket Lake CPU */ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x4c19), .driver_data = (kernel_ulong_t)&intel_th_2x,
From: Alexander Shishkin alexander.shishkin@linux.intel.com
commit 802a9a0b1d91274ef10d9fe429b4cc1e8c200aef upstream.
Add support for the Trace Hub in Meteor Lake-P.
Reviewed-by: Andy Shevchenko andriy.shevchenko@linux.intel.com Cc: stable stable@kernel.org Signed-off-by: Alexander Shishkin alexander.shishkin@linux.intel.com Link: https://lore.kernel.org/r/20220705082637.59979-5-alexander.shishkin@linux.in... Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/hwtracing/intel_th/pci.c | 5 +++++ 1 file changed, 5 insertions(+)
--- a/drivers/hwtracing/intel_th/pci.c +++ b/drivers/hwtracing/intel_th/pci.c @@ -256,6 +256,11 @@ static const struct pci_device_id intel_ .driver_data = (kernel_ulong_t)&intel_th_2x, }, { + /* Meteor Lake-P */ + PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x7e24), + .driver_data = (kernel_ulong_t)&intel_th_2x, + }, + { /* Rocket Lake CPU */ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x4c19), .driver_data = (kernel_ulong_t)&intel_th_2x,
From: Mikulas Patocka mpatocka@redhat.com
commit 7dad24db59d2d2803576f2e3645728866a056dab upstream.
There is a KASAN warning in raid_resume when running the lvm test lvconvert-raid.sh. The reason for the warning is that mddev->raid_disks is greater than rs->raid_disks, so the loop touches one entry beyond the allocated length.
Cc: stable@vger.kernel.org Signed-off-by: Mikulas Patocka mpatocka@redhat.com Signed-off-by: Mike Snitzer snitzer@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/md/dm-raid.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/md/dm-raid.c +++ b/drivers/md/dm-raid.c @@ -3804,7 +3804,7 @@ static void attempt_restore_of_faulty_de
memset(cleared_failed_devices, 0, sizeof(cleared_failed_devices));
- for (i = 0; i < mddev->raid_disks; i++) { + for (i = 0; i < rs->raid_disks; i++) { r = &rs->dev[i].rdev; /* HM FIXME: enhance journal device recovery processing */ if (test_bit(Journal, &r->flags))
From: Mikulas Patocka mpatocka@redhat.com
commit 1fbeea217d8f297fe0e0956a1516d14ba97d0396 upstream.
There is this warning when using a kernel with the address sanitizer and running this testsuite: https://gitlab.com/cki-project/kernel-tests/-/tree/main/storage/swraid/scsi_...
================================================================== BUG: KASAN: slab-out-of-bounds in raid_status+0x1747/0x2820 [dm_raid] Read of size 4 at addr ffff888079d2c7e8 by task lvcreate/13319 CPU: 0 PID: 13319 Comm: lvcreate Not tainted 5.18.0-0.rc3.<snip> #1 Hardware name: Red Hat KVM, BIOS 0.5.1 01/01/2011 Call Trace: <TASK> dump_stack_lvl+0x6a/0x9c print_address_description.constprop.0+0x1f/0x1e0 print_report.cold+0x55/0x244 kasan_report+0xc9/0x100 raid_status+0x1747/0x2820 [dm_raid] dm_ima_measure_on_table_load+0x4b8/0xca0 [dm_mod] table_load+0x35c/0x630 [dm_mod] ctl_ioctl+0x411/0x630 [dm_mod] dm_ctl_ioctl+0xa/0x10 [dm_mod] __x64_sys_ioctl+0x12a/0x1a0 do_syscall_64+0x5b/0x80
The warning is caused by reading conf->max_nr_stripes in raid_status. The code in raid_status reads mddev->private, casts it to struct r5conf and reads the entry max_nr_stripes.
However, if we have different raid type than 4/5/6, mddev->private doesn't point to struct r5conf; it may point to struct r0conf, struct r1conf, struct r10conf or struct mpconf. If we cast a pointer to one of these structs to struct r5conf, we will be reading invalid memory and KASAN warns about it.
Fix this bug by reading struct r5conf only if raid type is 4, 5 or 6.
Cc: stable@vger.kernel.org Signed-off-by: Mikulas Patocka mpatocka@redhat.com Signed-off-by: Mike Snitzer snitzer@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/md/dm-raid.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/md/dm-raid.c +++ b/drivers/md/dm-raid.c @@ -3533,7 +3533,7 @@ static void raid_status(struct dm_target { struct raid_set *rs = ti->private; struct mddev *mddev = &rs->md; - struct r5conf *conf = mddev->private; + struct r5conf *conf = rs_is_raid456(rs) ? mddev->private : NULL; int i, max_nr_stripes = conf ? conf->max_nr_stripes : 0; unsigned long recovery; unsigned int raid_param_cnt = 1; /* at least 1 for chunksize */
From: Mikulas Patocka mpatocka@redhat.com
commit ca7dc242e358e46d963b32f9d9dd829785a9e957 upstream.
dm-writecache has the capability to limit the number of writeback jobs in progress. However, this feature was off by default. As such there were some out-of-memory crashes observed when lowering the low watermark while the cache is full.
This commit enables writeback limit by default. It is set to 256MiB or 1/16 of total system memory, whichever is smaller.
Cc: stable@vger.kernel.org Signed-off-by: Mikulas Patocka mpatocka@redhat.com Signed-off-by: Mike Snitzer snitzer@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/md/dm-writecache.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/md/dm-writecache.c +++ b/drivers/md/dm-writecache.c @@ -20,7 +20,7 @@
#define HIGH_WATERMARK 50 #define LOW_WATERMARK 45 -#define MAX_WRITEBACK_JOBS 0 +#define MAX_WRITEBACK_JOBS min(0x10000000 / PAGE_SIZE, totalram_pages / 16) #define ENDIO_LATENCY 16 #define WRITEBACK_LATENCY 64 #define AUTOCOMMIT_BLOCKS_SSD 65536
From: Rafael J. Wysocki rafael.j.wysocki@intel.com
commit 4f4179fcf420873002035cf1941d844c9e0e7cb3 upstream.
There is a problem with the current revision checks in is_cppc_supported() that they essentially prevent the CPPC support from working if a new _CPC package format revision being a proper superset of the v3 and only causing _CPC to return a package with more entries (while retaining the types and meaning of the entries defined by the v3) is introduced in the future and used by the platform firmware.
In that case, as long as the number of entries in the _CPC return package is at least CPPC_V3_NUM_ENT, it should be perfectly fine to use the v3 support code and disregard the additional package entries added by the new package format revision.
For this reason, drop is_cppc_supported() altogether, put the revision checks directly into acpi_cppc_processor_probe() so they are easier to follow and rework them to take the case mentioned above into account.
Fixes: 4773e77cdc9b ("ACPI / CPPC: Add support for CPPC v3") Cc: 4.18+ stable@vger.kernel.org # 4.18+ Signed-off-by: Rafael J. Wysocki rafael.j.wysocki@intel.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/acpi/cppc_acpi.c | 54 ++++++++++++++++++++--------------------------- include/acpi/cppc_acpi.h | 2 - 2 files changed, 25 insertions(+), 31 deletions(-)
--- a/drivers/acpi/cppc_acpi.c +++ b/drivers/acpi/cppc_acpi.c @@ -630,33 +630,6 @@ int pcc_data_alloc(int pcc_ss_id) return 0; }
-/* Check if CPPC revision + num_ent combination is supported */ -static bool is_cppc_supported(int revision, int num_ent) -{ - int expected_num_ent; - - switch (revision) { - case CPPC_V2_REV: - expected_num_ent = CPPC_V2_NUM_ENT; - break; - case CPPC_V3_REV: - expected_num_ent = CPPC_V3_NUM_ENT; - break; - default: - pr_debug("Firmware exports unsupported CPPC revision: %d\n", - revision); - return false; - } - - if (expected_num_ent != num_ent) { - pr_debug("Firmware exports %d entries. Expected: %d for CPPC rev:%d\n", - num_ent, expected_num_ent, revision); - return false; - } - - return true; -} - /* * An example CPC table looks like the following. * @@ -752,7 +725,6 @@ int acpi_cppc_processor_probe(struct acp cpc_obj->type); goto out_free; } - cpc_ptr->num_entries = num_ent;
/* Second entry should be revision. */ cpc_obj = &out_obj->package.elements[1]; @@ -763,10 +735,32 @@ int acpi_cppc_processor_probe(struct acp cpc_obj->type); goto out_free; } - cpc_ptr->version = cpc_rev;
- if (!is_cppc_supported(cpc_rev, num_ent)) + if (cpc_rev < CPPC_V2_REV) { + pr_debug("Unsupported _CPC Revision (%d) for CPU:%d\n", cpc_rev, + pr->id); goto out_free; + } + + /* + * Disregard _CPC if the number of entries in the return pachage is not + * as expected, but support future revisions being proper supersets of + * the v3 and only causing more entries to be returned by _CPC. + */ + if ((cpc_rev == CPPC_V2_REV && num_ent != CPPC_V2_NUM_ENT) || + (cpc_rev == CPPC_V3_REV && num_ent != CPPC_V3_NUM_ENT) || + (cpc_rev > CPPC_V3_REV && num_ent <= CPPC_V3_NUM_ENT)) { + pr_debug("Unexpected number of _CPC return package entries (%d) for CPU:%d\n", + num_ent, pr->id); + goto out_free; + } + if (cpc_rev > CPPC_V3_REV) { + num_ent = CPPC_V3_NUM_ENT; + cpc_rev = CPPC_V3_REV; + } + + cpc_ptr->num_entries = num_ent; + cpc_ptr->version = cpc_rev;
/* Iterate through remaining entries in _CPC */ for (i = 2; i < num_ent; i++) { --- a/include/acpi/cppc_acpi.h +++ b/include/acpi/cppc_acpi.h @@ -20,7 +20,7 @@ #include <acpi/pcc.h> #include <acpi/processor.h>
-/* Support CPPCv2 and CPPCv3 */ +/* CPPCv2 and CPPCv3 support */ #define CPPC_V2_REV 2 #define CPPC_V3_REV 3 #define CPPC_V2_NUM_ENT 21
From: Thadeu Lima de Souza Cascardo cascardo@canonical.com
commit 9ad36309e2719a884f946678e0296be10f0bb4c1 upstream.
When a route filter is replaced and the old filter has a 0 handle, the old one won't be removed from the hashtable, while it will still be freed.
The test was there since before commit 1109c00547fc ("net: sched: RCU cls_route"), when a new filter was not allocated when there was an old one. The old filter was reused and the reinserting would only be necessary if an old filter was replaced. That was still wrong for the same case where the old handle was 0.
Remove the old filter from the list independently from its handle value.
This fixes CVE-2022-2588, also reported as ZDI-CAN-17440.
Reported-by: Zhenpeng Lin zplin@u.northwestern.edu Signed-off-by: Thadeu Lima de Souza Cascardo cascardo@canonical.com Reviewed-by: Kamal Mostafa kamal@canonical.com Cc: stable@vger.kernel.org Acked-by: Jamal Hadi Salim jhs@mojatatu.com Link: https://lore.kernel.org/r/20220809170518.164662-1-cascardo@canonical.com Signed-off-by: Jakub Kicinski kuba@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- net/sched/cls_route.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/net/sched/cls_route.c +++ b/net/sched/cls_route.c @@ -528,7 +528,7 @@ static int route4_change(struct net *net rcu_assign_pointer(f->next, f1); rcu_assign_pointer(*fp, f);
- if (fold && fold->handle && f->handle != fold->handle) { + if (fold) { th = to_hash(fold->handle); h = from_hash(fold->handle >> 16); b = rtnl_dereference(head->table[th]);
From: Qu Wenruo wqu@suse.com
commit dc4d31684974d140250f3ee612c3f0cab13b3146 upstream.
[BUG] If we have a btrfs image with dirty log, along with an unsupported RO compatible flag:
log_root 30474240 ... compat_flags 0x0 compat_ro_flags 0x40000003 ( FREE_SPACE_TREE | FREE_SPACE_TREE_VALID | unknown flag: 0x40000000 )
Then even if we can only mount it RO, we will still cause metadata update for log replay:
BTRFS info (device dm-1): flagging fs with big metadata feature BTRFS info (device dm-1): using free space tree BTRFS info (device dm-1): has skinny extents BTRFS info (device dm-1): start tree-log replay
This is definitely against RO compact flag requirement.
[CAUSE] RO compact flag only forces us to do RO mount, but we will still do log replay for plain RO mount.
Thus this will result us to do log replay and update metadata.
This can be very problematic for new RO compat flag, for example older kernel can not understand v2 cache, and if we allow metadata update on RO mount and invalidate/corrupt v2 cache.
[FIX] Just reject the mount unless rescue=nologreplay is provided:
BTRFS error (device dm-1): cannot replay dirty log with unsupport optional features (0x40000000), try rescue=nologreplay instead
We don't want to set rescue=nologreply directly, as this would make the end user to read the old data, and cause confusion.
Since the such case is really rare, we're mostly fine to just reject the mount with an error message, which also includes the proper workaround.
CC: stable@vger.kernel.org #4.9+ Signed-off-by: Qu Wenruo wqu@suse.com Reviewed-by: David Sterba dsterba@suse.com Signed-off-by: David Sterba dsterba@suse.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- fs/btrfs/disk-io.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+)
--- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -2920,6 +2920,20 @@ int open_ctree(struct super_block *sb, err = -EINVAL; goto fail_alloc; } + /* + * We have unsupported RO compat features, although RO mounted, we + * should not cause any metadata write, including log replay. + * Or we could screw up whatever the new feature requires. + */ + if (unlikely(features && btrfs_super_log_root(disk_super) && + !btrfs_test_opt(fs_info, NOLOGREPLAY))) { + btrfs_err(fs_info, +"cannot replay dirty log with unsupported compat_ro features (0x%llx), try rescue=nologreplay", + features); + err = -EINVAL; + goto fail_alloc; + } +
ret = btrfs_init_workqueues(fs_info, fs_devices); if (ret) {
From: Sean Christopherson sean.j.christopherson@intel.com
commit 0b8f11737cffc1a406d1134b58687abc29d76b52 upstream
Signed-off-by: Sean Christopherson sean.j.christopherson@intel.com Signed-off-by: Isaku Yamahata isaku.yamahata@intel.com Reviewed-by: Paolo Bonzini pbonzini@redhat.com Message-Id: 3a0998645c328bf0895f1290e61821b70f048549.1625186503.git.isaku.yamahata@intel.com Signed-off-by: Paolo Bonzini pbonzini@redhat.com [SG: Adjusted context for kernel version 4.19] Signed-off-by: Stefan Ghinea stefan.ghinea@windriver.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- include/linux/kvm_host.h | 28 +++++++++++++++++++++++++++- virt/kvm/kvm_main.c | 10 +++++----- 2 files changed, 32 insertions(+), 6 deletions(-)
--- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -128,6 +128,7 @@ static inline bool is_error_page(struct #define KVM_REQ_MMU_RELOAD (1 | KVM_REQUEST_WAIT | KVM_REQUEST_NO_WAKEUP) #define KVM_REQ_PENDING_TIMER 2 #define KVM_REQ_UNHALT 3 +#define KVM_REQ_VM_BUGGED (4 | KVM_REQUEST_WAIT | KVM_REQUEST_NO_WAKEUP) #define KVM_REQUEST_ARCH_BASE 8
#define KVM_ARCH_REQ_FLAGS(nr, flags) ({ \ @@ -482,6 +483,7 @@ struct kvm { struct srcu_struct srcu; struct srcu_struct irq_srcu; pid_t userspace_pid; + bool vm_bugged; };
#define kvm_err(fmt, ...) \ @@ -510,6 +512,31 @@ struct kvm { #define vcpu_err(vcpu, fmt, ...) \ kvm_err("vcpu%i " fmt, (vcpu)->vcpu_id, ## __VA_ARGS__)
+bool kvm_make_all_cpus_request(struct kvm *kvm, unsigned int req); +static inline void kvm_vm_bugged(struct kvm *kvm) +{ + kvm->vm_bugged = true; + kvm_make_all_cpus_request(kvm, KVM_REQ_VM_BUGGED); +} + +#define KVM_BUG(cond, kvm, fmt...) \ +({ \ + int __ret = (cond); \ + \ + if (WARN_ONCE(__ret && !(kvm)->vm_bugged, fmt)) \ + kvm_vm_bugged(kvm); \ + unlikely(__ret); \ +}) + +#define KVM_BUG_ON(cond, kvm) \ +({ \ + int __ret = (cond); \ + \ + if (WARN_ON_ONCE(__ret && !(kvm)->vm_bugged)) \ + kvm_vm_bugged(kvm); \ + unlikely(__ret); \ +}) + static inline struct kvm_io_bus *kvm_get_bus(struct kvm *kvm, enum kvm_bus idx) { return srcu_dereference_check(kvm->buses[idx], &kvm->srcu, @@ -770,7 +797,6 @@ void kvm_reload_remote_mmus(struct kvm *
bool kvm_make_vcpus_request_mask(struct kvm *kvm, unsigned int req, unsigned long *vcpu_bitmap, cpumask_var_t tmp); -bool kvm_make_all_cpus_request(struct kvm *kvm, unsigned int req);
long kvm_arch_dev_ioctl(struct file *filp, unsigned int ioctl, unsigned long arg); --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -2820,7 +2820,7 @@ static long kvm_vcpu_ioctl(struct file * struct kvm_fpu *fpu = NULL; struct kvm_sregs *kvm_sregs = NULL;
- if (vcpu->kvm->mm != current->mm) + if (vcpu->kvm->mm != current->mm || vcpu->kvm->vm_bugged) return -EIO;
if (unlikely(_IOC_TYPE(ioctl) != KVMIO)) @@ -3026,7 +3026,7 @@ static long kvm_vcpu_compat_ioctl(struct void __user *argp = compat_ptr(arg); int r;
- if (vcpu->kvm->mm != current->mm) + if (vcpu->kvm->mm != current->mm || vcpu->kvm->vm_bugged) return -EIO;
switch (ioctl) { @@ -3081,7 +3081,7 @@ static long kvm_device_ioctl(struct file { struct kvm_device *dev = filp->private_data;
- if (dev->kvm->mm != current->mm) + if (dev->kvm->mm != current->mm || dev->kvm->vm_bugged) return -EIO;
switch (ioctl) { @@ -3244,7 +3244,7 @@ static long kvm_vm_ioctl(struct file *fi void __user *argp = (void __user *)arg; int r;
- if (kvm->mm != current->mm) + if (kvm->mm != current->mm || kvm->vm_bugged) return -EIO; switch (ioctl) { case KVM_CREATE_VCPU: @@ -3422,7 +3422,7 @@ static long kvm_vm_compat_ioctl(struct f struct kvm *kvm = filp->private_data; int r;
- if (kvm->mm != current->mm) + if (kvm->mm != current->mm || kvm->vm_bugged) return -EIO; switch (ioctl) { case KVM_GET_DIRTY_LOG: {
From: Vitaly Kuznetsov vkuznets@redhat.com
commit 7ec37d1cbe17d8189d9562178d8b29167fe1c31a upstream
When KVM_CAP_HYPERV_SYNIC{,2} is activated, KVM already checks for irqchip_in_kernel() so normally SynIC irqs should never be set. It is, however, possible for a misbehaving VMM to write to SYNIC/STIMER MSRs causing erroneous behavior.
The immediate issue being fixed is that kvm_irq_delivery_to_apic() (kvm_irq_delivery_to_apic_fast()) crashes when called with 'irq.shorthand = APIC_DEST_SELF' and 'src == NULL'.
Signed-off-by: Vitaly Kuznetsov vkuznets@redhat.com Message-Id: 20220325132140.25650-2-vkuznets@redhat.com Cc: stable@vger.kernel.org Signed-off-by: Paolo Bonzini pbonzini@redhat.com Signed-off-by: Stefan Ghinea stefan.ghinea@windriver.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/x86/kvm/hyperv.c | 3 +++ 1 file changed, 3 insertions(+)
--- a/arch/x86/kvm/hyperv.c +++ b/arch/x86/kvm/hyperv.c @@ -341,6 +341,9 @@ static int synic_set_irq(struct kvm_vcpu struct kvm_lapic_irq irq; int ret, vector;
+ if (KVM_BUG_ON(!lapic_in_kernel(vcpu), vcpu->kvm)) + return -EINVAL; + if (sint >= ARRAY_SIZE(synic->sint)) return -EINVAL;
From: Vitaly Kuznetsov vkuznets@redhat.com
commit 00b5f37189d24ac3ed46cb7f11742094778c46ce upstream
When kvm_irq_delivery_to_apic_fast() is called with APIC_DEST_SELF shorthand, 'src' must not be NULL. Crash the VM with KVM_BUG_ON() instead of crashing the host.
Signed-off-by: Vitaly Kuznetsov vkuznets@redhat.com Message-Id: 20220325132140.25650-3-vkuznets@redhat.com Cc: stable@vger.kernel.org Signed-off-by: Paolo Bonzini pbonzini@redhat.com Signed-off-by: Stefan Ghinea stefan.ghinea@windriver.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/x86/kvm/lapic.c | 4 ++++ 1 file changed, 4 insertions(+)
--- a/arch/x86/kvm/lapic.c +++ b/arch/x86/kvm/lapic.c @@ -961,6 +961,10 @@ bool kvm_irq_delivery_to_apic_fast(struc *r = -1;
if (irq->shorthand == APIC_DEST_SELF) { + if (KVM_BUG_ON(!src, kvm)) { + *r = 0; + return true; + } *r = kvm_apic_set_irq(src->vcpu, irq, dest_map); return true; }
From: Eric Dumazet edumazet@google.com
commit c4ee118561a0f74442439b7b5b486db1ac1ddfeb upstream.
sk_forced_mem_schedule() has a bug similar to ones fixed in commit 7c80b038d23e ("net: fix sk_wmem_schedule() and sk_rmem_schedule() errors")
While this bug has little chance to trigger in old kernels, we need to fix it before the following patch.
Fixes: d83769a580f1 ("tcp: fix possible deadlock in tcp_send_fin()") Signed-off-by: Eric Dumazet edumazet@google.com Acked-by: Soheil Hassas Yeganeh soheil@google.com Reviewed-by: Shakeel Butt shakeelb@google.com Reviewed-by: Wei Wang weiwan@google.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- net/ipv4/tcp_output.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-)
--- a/net/ipv4/tcp_output.c +++ b/net/ipv4/tcp_output.c @@ -3079,11 +3079,12 @@ void tcp_xmit_retransmit_queue(struct so */ void sk_forced_mem_schedule(struct sock *sk, int size) { - int amt; + int delta, amt;
- if (size <= sk->sk_forward_alloc) + delta = size - sk->sk_forward_alloc; + if (delta <= 0) return; - amt = sk_mem_pages(size); + amt = sk_mem_pages(delta); sk->sk_forward_alloc += amt * SK_MEM_QUANTUM; sk_memory_allocated_add(sk, amt);
From: Tony Battersby tonyb@cybernetics.com
commit 3455607fd7be10b449f5135c00dc306b85dc0d21 upstream.
When a SCSI device is removed while in active use, currently sg will immediately return -ENODEV on any attempt to wait for active commands that were sent before the removal. This is problematic for commands that use SG_FLAG_DIRECT_IO since the data buffer may still be in use by the kernel when userspace frees or reuses it after getting ENODEV, leading to corrupted userspace memory (in the case of READ-type commands) or corrupted data being sent to the device (in the case of WRITE-type commands). This has been seen in practice when logging out of a iscsi_tcp session, where the iSCSI driver may still be processing commands after the device has been marked for removal.
Change the policy to allow userspace to wait for active sg commands even when the device is being removed. Return -ENODEV only when there are no more responses to read.
Link: https://lore.kernel.org/r/5ebea46f-fe83-2d0b-233d-d0dcb362dd0a@cybernetics.c... Cc: stable@vger.kernel.org Acked-by: Douglas Gilbert dgilbert@interlog.com Signed-off-by: Tony Battersby tonyb@cybernetics.com Signed-off-by: Martin K. Petersen martin.petersen@oracle.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/scsi/sg.c | 57 ++++++++++++++++++++++++++++++++---------------------- 1 file changed, 34 insertions(+), 23 deletions(-)
--- a/drivers/scsi/sg.c +++ b/drivers/scsi/sg.c @@ -195,7 +195,7 @@ static void sg_link_reserve(Sg_fd * sfp, static void sg_unlink_reserve(Sg_fd * sfp, Sg_request * srp); static Sg_fd *sg_add_sfp(Sg_device * sdp); static void sg_remove_sfp(struct kref *); -static Sg_request *sg_get_rq_mark(Sg_fd * sfp, int pack_id); +static Sg_request *sg_get_rq_mark(Sg_fd * sfp, int pack_id, bool *busy); static Sg_request *sg_add_request(Sg_fd * sfp); static int sg_remove_request(Sg_fd * sfp, Sg_request * srp); static Sg_device *sg_get_dev(int dev); @@ -417,6 +417,7 @@ sg_read(struct file *filp, char __user * Sg_fd *sfp; Sg_request *srp; int req_pack_id = -1; + bool busy; sg_io_hdr_t *hp; struct sg_header *old_hdr = NULL; int retval = 0; @@ -464,25 +465,19 @@ sg_read(struct file *filp, char __user * } else req_pack_id = old_hdr->pack_id; } - srp = sg_get_rq_mark(sfp, req_pack_id); + srp = sg_get_rq_mark(sfp, req_pack_id, &busy); if (!srp) { /* now wait on packet to arrive */ - if (atomic_read(&sdp->detaching)) { - retval = -ENODEV; - goto free_old_hdr; - } if (filp->f_flags & O_NONBLOCK) { retval = -EAGAIN; goto free_old_hdr; } retval = wait_event_interruptible(sfp->read_wait, - (atomic_read(&sdp->detaching) || - (srp = sg_get_rq_mark(sfp, req_pack_id)))); - if (atomic_read(&sdp->detaching)) { - retval = -ENODEV; - goto free_old_hdr; - } - if (retval) { - /* -ERESTARTSYS as signal hit process */ + ((srp = sg_get_rq_mark(sfp, req_pack_id, &busy)) || + (!busy && atomic_read(&sdp->detaching)))); + if (!srp) { + /* signal or detaching */ + if (!retval) + retval = -ENODEV; goto free_old_hdr; } } @@ -933,9 +928,7 @@ sg_ioctl(struct file *filp, unsigned int if (result < 0) return result; result = wait_event_interruptible(sfp->read_wait, - (srp_done(sfp, srp) || atomic_read(&sdp->detaching))); - if (atomic_read(&sdp->detaching)) - return -ENODEV; + srp_done(sfp, srp)); write_lock_irq(&sfp->rq_list_lock); if (srp->done) { srp->done = 2; @@ -2079,19 +2072,28 @@ sg_unlink_reserve(Sg_fd * sfp, Sg_reques }
static Sg_request * -sg_get_rq_mark(Sg_fd * sfp, int pack_id) +sg_get_rq_mark(Sg_fd * sfp, int pack_id, bool *busy) { Sg_request *resp; unsigned long iflags;
+ *busy = false; write_lock_irqsave(&sfp->rq_list_lock, iflags); list_for_each_entry(resp, &sfp->rq_list, entry) { - /* look for requests that are ready + not SG_IO owned */ - if ((1 == resp->done) && (!resp->sg_io_owned) && + /* look for requests that are not SG_IO owned */ + if ((!resp->sg_io_owned) && ((-1 == pack_id) || (resp->header.pack_id == pack_id))) { - resp->done = 2; /* guard against other readers */ - write_unlock_irqrestore(&sfp->rq_list_lock, iflags); - return resp; + switch (resp->done) { + case 0: /* request active */ + *busy = true; + break; + case 1: /* request done; response ready to return */ + resp->done = 2; /* guard against other readers */ + write_unlock_irqrestore(&sfp->rq_list_lock, iflags); + return resp; + case 2: /* response already being returned */ + break; + } } } write_unlock_irqrestore(&sfp->rq_list_lock, iflags); @@ -2145,6 +2147,15 @@ sg_remove_request(Sg_fd * sfp, Sg_reques res = 1; } write_unlock_irqrestore(&sfp->rq_list_lock, iflags); + + /* + * If the device is detaching, wakeup any readers in case we just + * removed the last response, which would leave nothing for them to + * return other than -ENODEV. + */ + if (unlikely(atomic_read(&sfp->parentdp->detaching))) + wake_up_interruptible_all(&sfp->read_wait); + return res; }
From: Jose Alonso joalonsof@gmail.com
commit 6fd2c17fb6e02a8c0ab51df1cfec82ce96b8e83d upstream.
This reverts commit 36a15e1cb134c0395261ba1940762703f778438c.
The usage of FLAG_SEND_ZLP causes problems to other firmware/hardware versions that have no issues.
The FLAG_SEND_ZLP is not safe to use in this context. See: https://patchwork.ozlabs.org/project/netdev/patch/1270599787.8900.8.camel@Li... The original problem needs another way to solve.
Fixes: 36a15e1cb134 ("net: usb: ax88179_178a needs FLAG_SEND_ZLP") Cc: stable@vger.kernel.org Reported-by: Ronald Wahl ronald.wahl@raritan.com Link: https://bugzilla.kernel.org/show_bug.cgi?id=216327 Link: https://bugs.archlinux.org/task/75491 Signed-off-by: Jose Alonso joalonsof@gmail.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/usb/ax88179_178a.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-)
--- a/drivers/net/usb/ax88179_178a.c +++ b/drivers/net/usb/ax88179_178a.c @@ -1706,7 +1706,7 @@ static const struct driver_info ax88179_ .link_reset = ax88179_link_reset, .reset = ax88179_reset, .stop = ax88179_stop, - .flags = FLAG_ETHER | FLAG_FRAMING_AX | FLAG_SEND_ZLP, + .flags = FLAG_ETHER | FLAG_FRAMING_AX, .rx_fixup = ax88179_rx_fixup, .tx_fixup = ax88179_tx_fixup, }; @@ -1719,7 +1719,7 @@ static const struct driver_info ax88178a .link_reset = ax88179_link_reset, .reset = ax88179_reset, .stop = ax88179_stop, - .flags = FLAG_ETHER | FLAG_FRAMING_AX | FLAG_SEND_ZLP, + .flags = FLAG_ETHER | FLAG_FRAMING_AX, .rx_fixup = ax88179_rx_fixup, .tx_fixup = ax88179_tx_fixup, }; @@ -1732,7 +1732,7 @@ static const struct driver_info cypress_ .link_reset = ax88179_link_reset, .reset = ax88179_reset, .stop = ax88179_stop, - .flags = FLAG_ETHER | FLAG_FRAMING_AX | FLAG_SEND_ZLP, + .flags = FLAG_ETHER | FLAG_FRAMING_AX, .rx_fixup = ax88179_rx_fixup, .tx_fixup = ax88179_tx_fixup, }; @@ -1745,7 +1745,7 @@ static const struct driver_info dlink_du .link_reset = ax88179_link_reset, .reset = ax88179_reset, .stop = ax88179_stop, - .flags = FLAG_ETHER | FLAG_FRAMING_AX | FLAG_SEND_ZLP, + .flags = FLAG_ETHER | FLAG_FRAMING_AX, .rx_fixup = ax88179_rx_fixup, .tx_fixup = ax88179_tx_fixup, }; @@ -1758,7 +1758,7 @@ static const struct driver_info sitecom_ .link_reset = ax88179_link_reset, .reset = ax88179_reset, .stop = ax88179_stop, - .flags = FLAG_ETHER | FLAG_FRAMING_AX | FLAG_SEND_ZLP, + .flags = FLAG_ETHER | FLAG_FRAMING_AX, .rx_fixup = ax88179_rx_fixup, .tx_fixup = ax88179_tx_fixup, }; @@ -1771,7 +1771,7 @@ static const struct driver_info samsung_ .link_reset = ax88179_link_reset, .reset = ax88179_reset, .stop = ax88179_stop, - .flags = FLAG_ETHER | FLAG_FRAMING_AX | FLAG_SEND_ZLP, + .flags = FLAG_ETHER | FLAG_FRAMING_AX, .rx_fixup = ax88179_rx_fixup, .tx_fixup = ax88179_tx_fixup, }; @@ -1784,7 +1784,7 @@ static const struct driver_info lenovo_i .link_reset = ax88179_link_reset, .reset = ax88179_reset, .stop = ax88179_stop, - .flags = FLAG_ETHER | FLAG_FRAMING_AX | FLAG_SEND_ZLP, + .flags = FLAG_ETHER | FLAG_FRAMING_AX, .rx_fixup = ax88179_rx_fixup, .tx_fixup = ax88179_tx_fixup, }; @@ -1797,7 +1797,7 @@ static const struct driver_info belkin_i .link_reset = ax88179_link_reset, .reset = ax88179_reset, .stop = ax88179_stop, - .flags = FLAG_ETHER | FLAG_FRAMING_AX | FLAG_SEND_ZLP, + .flags = FLAG_ETHER | FLAG_FRAMING_AX, .rx_fixup = ax88179_rx_fixup, .tx_fixup = ax88179_tx_fixup, };
From: Luiz Augusto von Dentz luiz.von.dentz@intel.com
commit 332f1795ca202489c665a75e62e18ff6284de077 upstream.
The patch d0be8347c623: "Bluetooth: L2CAP: Fix use-after-free caused by l2cap_chan_put" from Jul 21, 2022, leads to the following Smatch static checker warning:
net/bluetooth/l2cap_core.c:1977 l2cap_global_chan_by_psm() error: we previously assumed 'c' could be null (see line 1996)
Fixes: d0be8347c623 ("Bluetooth: L2CAP: Fix use-after-free caused by l2cap_chan_put") Reported-by: Dan Carpenter dan.carpenter@oracle.com Signed-off-by: Luiz Augusto von Dentz luiz.von.dentz@intel.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- net/bluetooth/l2cap_core.c | 13 ++++++------- 1 file changed, 6 insertions(+), 7 deletions(-)
--- a/net/bluetooth/l2cap_core.c +++ b/net/bluetooth/l2cap_core.c @@ -1804,11 +1804,11 @@ static struct l2cap_chan *l2cap_global_c bdaddr_t *dst, u8 link_type) { - struct l2cap_chan *c, *c1 = NULL; + struct l2cap_chan *c, *tmp, *c1 = NULL;
read_lock(&chan_list_lock);
- list_for_each_entry(c, &chan_list, global_l) { + list_for_each_entry_safe(c, tmp, &chan_list, global_l) { if (state && c->state != state) continue;
@@ -1827,11 +1827,10 @@ static struct l2cap_chan *l2cap_global_c dst_match = !bacmp(&c->dst, dst); if (src_match && dst_match) { c = l2cap_chan_hold_unless_zero(c); - if (!c) - continue; - - read_unlock(&chan_list_lock); - return c; + if (c) { + read_unlock(&chan_list_lock); + return c; + } }
/* Closest match */
From: Tyler Hicks tyhicks@linux.microsoft.com
commit aa7aeee169480e98cf41d83c01290a37e569be6d upstream.
Ensure that the fid's iounit field is set to zero when a new fid is created. Certain 9P operations, such as OPEN and CREATE, allow the server to reply with an iounit size which the client code assigns to the p9_fid struct shortly after the fid is created by p9_fid_create(). On the other hand, an XATTRWALK operation doesn't allow for the server to specify an iounit value. The iounit field of the newly allocated p9_fid struct remained uninitialized in that case. Depending on allocation patterns, the iounit value could have been something reasonable that was carried over from previously freed fids or, in the worst case, could have been arbitrary values from non-fid related usages of the memory location.
The bug was detected in the Windows Subsystem for Linux 2 (WSL2) kernel after the uninitialized iounit field resulted in the typical sequence of two getxattr(2) syscalls, one to get the size of an xattr and another after allocating a sufficiently sized buffer to fit the xattr value, to hit an unexpected ERANGE error in the second call to getxattr(2). An uninitialized iounit field would sometimes force rsize to be smaller than the xattr value size in p9_client_read_once() and the 9P server in WSL refused to chunk up the READ on the attr_fid and, instead, returned ERANGE to the client. The virtfs server in QEMU seems happy to chunk up the READ and this problem goes undetected there.
Link: https://lkml.kernel.org/r/20220710141402.803295-1-tyhicks@linux.microsoft.co... Fixes: ebf46264a004 ("fs/9p: Add support user. xattr") Cc: stable@vger.kernel.org Signed-off-by: Tyler Hicks tyhicks@linux.microsoft.com Reviewed-by: Christian Schoenebeck linux_oss@crudebyte.com Signed-off-by: Dominique Martinet asmadeus@codewreck.org [tyhicks: Adjusted context due to: - Lack of fid refcounting introduced in v5.11 commit 6636b6dcc3db ("9p: add refcount to p9_fid struct") - Difference in how buffer sizes are specified v5.16 commit 6e195b0f7c8e ("9p: fix a bunch of checkpatch warnings")] Signed-off-by: Tyler Hicks tyhicks@linux.microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- net/9p/client.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-)
--- a/net/9p/client.c +++ b/net/9p/client.c @@ -908,16 +908,13 @@ static struct p9_fid *p9_fid_create(stru struct p9_fid *fid;
p9_debug(P9_DEBUG_FID, "clnt %p\n", clnt); - fid = kmalloc(sizeof(struct p9_fid), GFP_KERNEL); + fid = kzalloc(sizeof(struct p9_fid), GFP_KERNEL); if (!fid) return NULL;
- memset(&fid->qid, 0, sizeof(struct p9_qid)); fid->mode = -1; fid->uid = current_fsuid(); fid->clnt = clnt; - fid->rdir = NULL; - fid->fid = 0;
idr_preload(GFP_KERNEL); spin_lock_irq(&clnt->lock);
From: Jamal Hadi Salim jhs@mojatatu.com
commit 02799571714dc5dd6948824b9d080b44a295f695 upstream.
Follows up on: https://lore.kernel.org/all/20220809170518.164662-1-cascardo@canonical.com/
handle of 0 implies from/to of universe realm which is not very sensible.
Lets see what this patch will do: $sudo tc qdisc add dev $DEV root handle 1:0 prio
//lets manufacture a way to insert handle of 0 $sudo tc filter add dev $DEV parent 1:0 protocol ip prio 100 \ route to 0 from 0 classid 1:10 action ok
//gets rejected... Error: handle of 0 is not valid. We have an error talking to the kernel, -1
//lets create a legit entry.. sudo tc filter add dev $DEV parent 1:0 protocol ip prio 100 route from 10 \ classid 1:10 action ok
//what did the kernel insert? $sudo tc filter ls dev $DEV parent 1:0 filter protocol ip pref 100 route chain 0 filter protocol ip pref 100 route chain 0 fh 0x000a8000 flowid 1:10 from 10 action order 1: gact action pass random type none pass val 0 index 1 ref 1 bind 1
//Lets try to replace that legit entry with a handle of 0 $ sudo tc filter replace dev $DEV parent 1:0 protocol ip prio 100 \ handle 0x000a8000 route to 0 from 0 classid 1:10 action drop
Error: Replacing with handle of 0 is invalid. We have an error talking to the kernel, -1
And last, lets run Cascardo's POC: $ ./poc 0 0 -22 -22 -22
Signed-off-by: Jamal Hadi Salim jhs@mojatatu.com Acked-by: Stephen Hemminger stephen@networkplumber.org Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- net/sched/cls_route.c | 10 ++++++++++ 1 file changed, 10 insertions(+)
--- a/net/sched/cls_route.c +++ b/net/sched/cls_route.c @@ -427,6 +427,11 @@ static int route4_set_parms(struct net * return -EINVAL; }
+ if (!nhandle) { + NL_SET_ERR_MSG(extack, "Replacing with handle of 0 is invalid"); + return -EINVAL; + } + h1 = to_hash(nhandle); b = rtnl_dereference(head->table[h1]); if (!b) { @@ -480,6 +485,11 @@ static int route4_change(struct net *net int err; bool new = true;
+ if (!handle) { + NL_SET_ERR_MSG(extack, "Creating with handle of 0 is invalid"); + return -EINVAL; + } + if (opt == NULL) return handle ? -EINVAL : 0;
From: Sudeep Holla sudeep.holla@arm.com
commit 689640efc0a2c4e07e6f88affe6d42cd40cc3f85 upstream.
When scpi probe fails, at any point, we need to ensure that the scpi_info is not set and will remain NULL until the probe succeeds. If it is not taken care, then it could result use-after-free as the value is exported via get_scpi_ops() and could refer to a memory allocated via devm_kzalloc() but freed when the probe fails.
Link: https://lore.kernel.org/r/20220701160310.148344-1-sudeep.holla@arm.com Cc: stable@vger.kernel.org # 4.19+ Reported-by: huhai huhai@kylinos.cn Reviewed-by: Jackie Liu liuyun01@kylinos.cn Signed-off-by: Sudeep Holla sudeep.holla@arm.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/firmware/arm_scpi.c | 61 +++++++++++++++++++++++++------------------- 1 file changed, 35 insertions(+), 26 deletions(-)
--- a/drivers/firmware/arm_scpi.c +++ b/drivers/firmware/arm_scpi.c @@ -826,7 +826,7 @@ static int scpi_init_versions(struct scp info->firmware_version = le32_to_cpu(caps.platform_version); } /* Ignore error if not implemented */ - if (scpi_info->is_legacy && ret == -EOPNOTSUPP) + if (info->is_legacy && ret == -EOPNOTSUPP) return 0;
return ret; @@ -916,13 +916,14 @@ static int scpi_probe(struct platform_de struct resource res; struct device *dev = &pdev->dev; struct device_node *np = dev->of_node; + struct scpi_drvinfo *scpi_drvinfo;
- scpi_info = devm_kzalloc(dev, sizeof(*scpi_info), GFP_KERNEL); - if (!scpi_info) + scpi_drvinfo = devm_kzalloc(dev, sizeof(*scpi_drvinfo), GFP_KERNEL); + if (!scpi_drvinfo) return -ENOMEM;
if (of_match_device(legacy_scpi_of_match, &pdev->dev)) - scpi_info->is_legacy = true; + scpi_drvinfo->is_legacy = true;
count = of_count_phandle_with_args(np, "mboxes", "#mbox-cells"); if (count < 0) { @@ -930,19 +931,19 @@ static int scpi_probe(struct platform_de return -ENODEV; }
- scpi_info->channels = devm_kcalloc(dev, count, sizeof(struct scpi_chan), - GFP_KERNEL); - if (!scpi_info->channels) + scpi_drvinfo->channels = + devm_kcalloc(dev, count, sizeof(struct scpi_chan), GFP_KERNEL); + if (!scpi_drvinfo->channels) return -ENOMEM;
- ret = devm_add_action(dev, scpi_free_channels, scpi_info); + ret = devm_add_action(dev, scpi_free_channels, scpi_drvinfo); if (ret) return ret;
- for (; scpi_info->num_chans < count; scpi_info->num_chans++) { + for (; scpi_drvinfo->num_chans < count; scpi_drvinfo->num_chans++) { resource_size_t size; - int idx = scpi_info->num_chans; - struct scpi_chan *pchan = scpi_info->channels + idx; + int idx = scpi_drvinfo->num_chans; + struct scpi_chan *pchan = scpi_drvinfo->channels + idx; struct mbox_client *cl = &pchan->cl; struct device_node *shmem = of_parse_phandle(np, "shmem", idx);
@@ -986,49 +987,57 @@ static int scpi_probe(struct platform_de return ret; }
- scpi_info->commands = scpi_std_commands; + scpi_drvinfo->commands = scpi_std_commands;
- platform_set_drvdata(pdev, scpi_info); + platform_set_drvdata(pdev, scpi_drvinfo);
- if (scpi_info->is_legacy) { + if (scpi_drvinfo->is_legacy) { /* Replace with legacy variants */ scpi_ops.clk_set_val = legacy_scpi_clk_set_val; - scpi_info->commands = scpi_legacy_commands; + scpi_drvinfo->commands = scpi_legacy_commands;
/* Fill priority bitmap */ for (idx = 0; idx < ARRAY_SIZE(legacy_hpriority_cmds); idx++) set_bit(legacy_hpriority_cmds[idx], - scpi_info->cmd_priority); + scpi_drvinfo->cmd_priority); }
- ret = scpi_init_versions(scpi_info); + scpi_info = scpi_drvinfo; + + ret = scpi_init_versions(scpi_drvinfo); if (ret) { dev_err(dev, "incorrect or no SCP firmware found\n"); + scpi_info = NULL; return ret; }
- if (scpi_info->is_legacy && !scpi_info->protocol_version && - !scpi_info->firmware_version) + if (scpi_drvinfo->is_legacy && !scpi_drvinfo->protocol_version && + !scpi_drvinfo->firmware_version) dev_info(dev, "SCP Protocol legacy pre-1.0 firmware\n"); else dev_info(dev, "SCP Protocol %lu.%lu Firmware %lu.%lu.%lu version\n", FIELD_GET(PROTO_REV_MAJOR_MASK, - scpi_info->protocol_version), + scpi_drvinfo->protocol_version), FIELD_GET(PROTO_REV_MINOR_MASK, - scpi_info->protocol_version), + scpi_drvinfo->protocol_version), FIELD_GET(FW_REV_MAJOR_MASK, - scpi_info->firmware_version), + scpi_drvinfo->firmware_version), FIELD_GET(FW_REV_MINOR_MASK, - scpi_info->firmware_version), + scpi_drvinfo->firmware_version), FIELD_GET(FW_REV_PATCH_MASK, - scpi_info->firmware_version)); - scpi_info->scpi_ops = &scpi_ops; + scpi_drvinfo->firmware_version));
ret = devm_device_add_groups(dev, versions_groups); if (ret) dev_err(dev, "unable to create sysfs version group\n");
- return devm_of_platform_populate(dev); + scpi_drvinfo->scpi_ops = &scpi_ops; + + ret = devm_of_platform_populate(dev); + if (ret) + scpi_info = NULL; + + return ret; }
static const struct of_device_id scpi_of_match[] = {
From: Christophe Leroy christophe.leroy@c-s.fr
commit 97026b5a5ac26541b3d294146f5c941491a9e609 upstream.
To reduce the complexity of flag_array, and allow the removal of default 0 value of non existing flags, lets have one flag_array table for each platform family with only the really existing flags.
Reviewed-by: Aneesh Kumar K.V aneesh.kumar@linux.ibm.com Signed-off-by: Christophe Leroy christophe.leroy@c-s.fr Signed-off-by: Michael Ellerman mpe@ellerman.id.au Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/powerpc/mm/Makefile | 7 + arch/powerpc/mm/dump_linuxpagetables-8xx.c | 82 ++++++++++++ arch/powerpc/mm/dump_linuxpagetables-book3s64.c | 115 +++++++++++++++++ arch/powerpc/mm/dump_linuxpagetables-generic.c | 82 ++++++++++++ arch/powerpc/mm/dump_linuxpagetables.c | 155 ------------------------ arch/powerpc/mm/dump_linuxpagetables.h | 19 ++ 6 files changed, 307 insertions(+), 153 deletions(-) create mode 100644 arch/powerpc/mm/dump_linuxpagetables-8xx.c create mode 100644 arch/powerpc/mm/dump_linuxpagetables-book3s64.c create mode 100644 arch/powerpc/mm/dump_linuxpagetables-generic.c create mode 100644 arch/powerpc/mm/dump_linuxpagetables.h
--- a/arch/powerpc/mm/Makefile +++ b/arch/powerpc/mm/Makefile @@ -43,5 +43,12 @@ obj-$(CONFIG_HIGHMEM) += highmem.o obj-$(CONFIG_PPC_COPRO_BASE) += copro_fault.o obj-$(CONFIG_SPAPR_TCE_IOMMU) += mmu_context_iommu.o obj-$(CONFIG_PPC_PTDUMP) += dump_linuxpagetables.o +ifdef CONFIG_PPC_PTDUMP +obj-$(CONFIG_4xx) += dump_linuxpagetables-generic.o +obj-$(CONFIG_PPC_8xx) += dump_linuxpagetables-8xx.o +obj-$(CONFIG_PPC_BOOK3E_MMU) += dump_linuxpagetables-generic.o +obj-$(CONFIG_PPC_BOOK3S_32) += dump_linuxpagetables-generic.o +obj-$(CONFIG_PPC_BOOK3S_64) += dump_linuxpagetables-book3s64.o +endif obj-$(CONFIG_PPC_HTDUMP) += dump_hashpagetable.o obj-$(CONFIG_PPC_MEM_KEYS) += pkeys.o --- /dev/null +++ b/arch/powerpc/mm/dump_linuxpagetables-8xx.c @@ -0,0 +1,82 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * From split of dump_linuxpagetables.c + * Copyright 2016, Rashmica Gupta, IBM Corp. + * + */ +#include <linux/kernel.h> +#include <asm/pgtable.h> + +#include "dump_linuxpagetables.h" + +static const struct flag_info flag_array[] = { + { + .mask = _PAGE_PRIVILEGED, + .val = 0, + .set = "user", + .clear = " ", + }, { + .mask = _PAGE_RO | _PAGE_NA, + .val = 0, + .set = "rw", + }, { + .mask = _PAGE_RO | _PAGE_NA, + .val = _PAGE_RO, + .set = "r ", + }, { + .mask = _PAGE_RO | _PAGE_NA, + .val = _PAGE_NA, + .set = " ", + }, { + .mask = _PAGE_EXEC, + .val = _PAGE_EXEC, + .set = " X ", + .clear = " ", + }, { + .mask = _PAGE_PRESENT, + .val = _PAGE_PRESENT, + .set = "present", + .clear = " ", + }, { + .mask = _PAGE_GUARDED, + .val = _PAGE_GUARDED, + .set = "guarded", + .clear = " ", + }, { + .mask = _PAGE_DIRTY, + .val = _PAGE_DIRTY, + .set = "dirty", + .clear = " ", + }, { + .mask = _PAGE_ACCESSED, + .val = _PAGE_ACCESSED, + .set = "accessed", + .clear = " ", + }, { + .mask = _PAGE_NO_CACHE, + .val = _PAGE_NO_CACHE, + .set = "no cache", + .clear = " ", + }, { + .mask = _PAGE_SPECIAL, + .val = _PAGE_SPECIAL, + .set = "special", + } +}; + +struct pgtable_level pg_level[5] = { + { + }, { /* pgd */ + .flag = flag_array, + .num = ARRAY_SIZE(flag_array), + }, { /* pud */ + .flag = flag_array, + .num = ARRAY_SIZE(flag_array), + }, { /* pmd */ + .flag = flag_array, + .num = ARRAY_SIZE(flag_array), + }, { /* pte */ + .flag = flag_array, + .num = ARRAY_SIZE(flag_array), + }, +}; --- /dev/null +++ b/arch/powerpc/mm/dump_linuxpagetables-book3s64.c @@ -0,0 +1,115 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * From split of dump_linuxpagetables.c + * Copyright 2016, Rashmica Gupta, IBM Corp. + * + */ +#include <linux/kernel.h> +#include <asm/pgtable.h> + +#include "dump_linuxpagetables.h" + +static const struct flag_info flag_array[] = { + { + .mask = _PAGE_PRIVILEGED, + .val = 0, + .set = "user", + .clear = " ", + }, { + .mask = _PAGE_READ, + .val = _PAGE_READ, + .set = "r", + .clear = " ", + }, { + .mask = _PAGE_WRITE, + .val = _PAGE_WRITE, + .set = "w", + .clear = " ", + }, { + .mask = _PAGE_EXEC, + .val = _PAGE_EXEC, + .set = " X ", + .clear = " ", + }, { + .mask = _PAGE_PTE, + .val = _PAGE_PTE, + .set = "pte", + .clear = " ", + }, { + .mask = _PAGE_PRESENT, + .val = _PAGE_PRESENT, + .set = "present", + .clear = " ", + }, { + .mask = H_PAGE_HASHPTE, + .val = H_PAGE_HASHPTE, + .set = "hpte", + .clear = " ", + }, { + .mask = _PAGE_DIRTY, + .val = _PAGE_DIRTY, + .set = "dirty", + .clear = " ", + }, { + .mask = _PAGE_ACCESSED, + .val = _PAGE_ACCESSED, + .set = "accessed", + .clear = " ", + }, { + .mask = _PAGE_NON_IDEMPOTENT, + .val = _PAGE_NON_IDEMPOTENT, + .set = "non-idempotent", + .clear = " ", + }, { + .mask = _PAGE_TOLERANT, + .val = _PAGE_TOLERANT, + .set = "tolerant", + .clear = " ", + }, { + .mask = H_PAGE_BUSY, + .val = H_PAGE_BUSY, + .set = "busy", + }, { +#ifdef CONFIG_PPC_64K_PAGES + .mask = H_PAGE_COMBO, + .val = H_PAGE_COMBO, + .set = "combo", + }, { + .mask = H_PAGE_4K_PFN, + .val = H_PAGE_4K_PFN, + .set = "4K_pfn", + }, { +#else /* CONFIG_PPC_64K_PAGES */ + .mask = H_PAGE_F_GIX, + .val = H_PAGE_F_GIX, + .set = "f_gix", + .is_val = true, + .shift = H_PAGE_F_GIX_SHIFT, + }, { + .mask = H_PAGE_F_SECOND, + .val = H_PAGE_F_SECOND, + .set = "f_second", + }, { +#endif /* CONFIG_PPC_64K_PAGES */ + .mask = _PAGE_SPECIAL, + .val = _PAGE_SPECIAL, + .set = "special", + } +}; + +struct pgtable_level pg_level[5] = { + { + }, { /* pgd */ + .flag = flag_array, + .num = ARRAY_SIZE(flag_array), + }, { /* pud */ + .flag = flag_array, + .num = ARRAY_SIZE(flag_array), + }, { /* pmd */ + .flag = flag_array, + .num = ARRAY_SIZE(flag_array), + }, { /* pte */ + .flag = flag_array, + .num = ARRAY_SIZE(flag_array), + }, +}; --- /dev/null +++ b/arch/powerpc/mm/dump_linuxpagetables-generic.c @@ -0,0 +1,82 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * From split of dump_linuxpagetables.c + * Copyright 2016, Rashmica Gupta, IBM Corp. + * + */ +#include <linux/kernel.h> +#include <asm/pgtable.h> + +#include "dump_linuxpagetables.h" + +static const struct flag_info flag_array[] = { + { + .mask = _PAGE_USER, + .val = _PAGE_USER, + .set = "user", + .clear = " ", + }, { + .mask = _PAGE_RW, + .val = _PAGE_RW, + .set = "rw", + .clear = "r ", + }, { +#ifndef CONFIG_PPC_BOOK3S_32 + .mask = _PAGE_EXEC, + .val = _PAGE_EXEC, + .set = " X ", + .clear = " ", + }, { +#endif + .mask = _PAGE_PRESENT, + .val = _PAGE_PRESENT, + .set = "present", + .clear = " ", + }, { + .mask = _PAGE_GUARDED, + .val = _PAGE_GUARDED, + .set = "guarded", + .clear = " ", + }, { + .mask = _PAGE_DIRTY, + .val = _PAGE_DIRTY, + .set = "dirty", + .clear = " ", + }, { + .mask = _PAGE_ACCESSED, + .val = _PAGE_ACCESSED, + .set = "accessed", + .clear = " ", + }, { + .mask = _PAGE_WRITETHRU, + .val = _PAGE_WRITETHRU, + .set = "write through", + .clear = " ", + }, { + .mask = _PAGE_NO_CACHE, + .val = _PAGE_NO_CACHE, + .set = "no cache", + .clear = " ", + }, { + .mask = _PAGE_SPECIAL, + .val = _PAGE_SPECIAL, + .set = "special", + } +}; + +struct pgtable_level pg_level[5] = { + { + }, { /* pgd */ + .flag = flag_array, + .num = ARRAY_SIZE(flag_array), + }, { /* pud */ + .flag = flag_array, + .num = ARRAY_SIZE(flag_array), + }, { /* pmd */ + .flag = flag_array, + .num = ARRAY_SIZE(flag_array), + }, { /* pte */ + .flag = flag_array, + .num = ARRAY_SIZE(flag_array), + }, +}; --- a/arch/powerpc/mm/dump_linuxpagetables.c +++ b/arch/powerpc/mm/dump_linuxpagetables.c @@ -28,6 +28,8 @@ #include <asm/page.h> #include <asm/pgalloc.h>
+#include "dump_linuxpagetables.h" + #ifdef CONFIG_PPC32 #define KERN_VIRT_START 0 #endif @@ -102,159 +104,6 @@ static struct addr_marker address_marker { -1, NULL }, };
-struct flag_info { - u64 mask; - u64 val; - const char *set; - const char *clear; - bool is_val; - int shift; -}; - -static const struct flag_info flag_array[] = { - { - .mask = _PAGE_USER | _PAGE_PRIVILEGED, - .val = _PAGE_USER, - .set = "user", - .clear = " ", - }, { - .mask = _PAGE_RW | _PAGE_RO | _PAGE_NA, - .val = _PAGE_RW, - .set = "rw", - }, { - .mask = _PAGE_RW | _PAGE_RO | _PAGE_NA, - .val = _PAGE_RO, - .set = "ro", - }, { -#if _PAGE_NA != 0 - .mask = _PAGE_RW | _PAGE_RO | _PAGE_NA, - .val = _PAGE_RO, - .set = "na", - }, { -#endif - .mask = _PAGE_EXEC, - .val = _PAGE_EXEC, - .set = " X ", - .clear = " ", - }, { - .mask = _PAGE_PTE, - .val = _PAGE_PTE, - .set = "pte", - .clear = " ", - }, { - .mask = _PAGE_PRESENT, - .val = _PAGE_PRESENT, - .set = "present", - .clear = " ", - }, { -#ifdef CONFIG_PPC_BOOK3S_64 - .mask = H_PAGE_HASHPTE, - .val = H_PAGE_HASHPTE, -#else - .mask = _PAGE_HASHPTE, - .val = _PAGE_HASHPTE, -#endif - .set = "hpte", - .clear = " ", - }, { -#ifndef CONFIG_PPC_BOOK3S_64 - .mask = _PAGE_GUARDED, - .val = _PAGE_GUARDED, - .set = "guarded", - .clear = " ", - }, { -#endif - .mask = _PAGE_DIRTY, - .val = _PAGE_DIRTY, - .set = "dirty", - .clear = " ", - }, { - .mask = _PAGE_ACCESSED, - .val = _PAGE_ACCESSED, - .set = "accessed", - .clear = " ", - }, { -#ifndef CONFIG_PPC_BOOK3S_64 - .mask = _PAGE_WRITETHRU, - .val = _PAGE_WRITETHRU, - .set = "write through", - .clear = " ", - }, { -#endif -#ifndef CONFIG_PPC_BOOK3S_64 - .mask = _PAGE_NO_CACHE, - .val = _PAGE_NO_CACHE, - .set = "no cache", - .clear = " ", - }, { -#else - .mask = _PAGE_NON_IDEMPOTENT, - .val = _PAGE_NON_IDEMPOTENT, - .set = "non-idempotent", - .clear = " ", - }, { - .mask = _PAGE_TOLERANT, - .val = _PAGE_TOLERANT, - .set = "tolerant", - .clear = " ", - }, { -#endif -#ifdef CONFIG_PPC_BOOK3S_64 - .mask = H_PAGE_BUSY, - .val = H_PAGE_BUSY, - .set = "busy", - }, { -#ifdef CONFIG_PPC_64K_PAGES - .mask = H_PAGE_COMBO, - .val = H_PAGE_COMBO, - .set = "combo", - }, { - .mask = H_PAGE_4K_PFN, - .val = H_PAGE_4K_PFN, - .set = "4K_pfn", - }, { -#else /* CONFIG_PPC_64K_PAGES */ - .mask = H_PAGE_F_GIX, - .val = H_PAGE_F_GIX, - .set = "f_gix", - .is_val = true, - .shift = H_PAGE_F_GIX_SHIFT, - }, { - .mask = H_PAGE_F_SECOND, - .val = H_PAGE_F_SECOND, - .set = "f_second", - }, { -#endif /* CONFIG_PPC_64K_PAGES */ -#endif - .mask = _PAGE_SPECIAL, - .val = _PAGE_SPECIAL, - .set = "special", - } -}; - -struct pgtable_level { - const struct flag_info *flag; - size_t num; - u64 mask; -}; - -static struct pgtable_level pg_level[] = { - { - }, { /* pgd */ - .flag = flag_array, - .num = ARRAY_SIZE(flag_array), - }, { /* pud */ - .flag = flag_array, - .num = ARRAY_SIZE(flag_array), - }, { /* pmd */ - .flag = flag_array, - .num = ARRAY_SIZE(flag_array), - }, { /* pte */ - .flag = flag_array, - .num = ARRAY_SIZE(flag_array), - }, -}; - static void dump_flag_info(struct pg_state *st, const struct flag_info *flag, u64 pte, int num) { --- /dev/null +++ b/arch/powerpc/mm/dump_linuxpagetables.h @@ -0,0 +1,19 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#include <linux/types.h> + +struct flag_info { + u64 mask; + u64 val; + const char *set; + const char *clear; + bool is_val; + int shift; +}; + +struct pgtable_level { + const struct flag_info *flag; + size_t num; + u64 mask; +}; + +extern struct pgtable_level pg_level[5];
From: Christophe Leroy christophe.leroy@csgroup.eu
commit dd8de84b57b02ba9c1fe530a6d916c0853f136bd upstream.
On FSL_BOOK3E, _PAGE_RW is defined with two bits, one for user and one for supervisor. As soon as one of the two bits is set, the page has to be display as RW. But the way it is implemented today requires both bits to be set in order to display it as RW.
Instead of display RW when _PAGE_RW bits are set and R otherwise, reverse the logic and display R when _PAGE_RW bits are all 0 and RW otherwise.
This change has no impact on other platforms as _PAGE_RW is a single bit on all of them.
Fixes: 8eb07b187000 ("powerpc/mm: Dump linux pagetables") Cc: stable@vger.kernel.org Signed-off-by: Christophe Leroy christophe.leroy@csgroup.eu Signed-off-by: Michael Ellerman mpe@ellerman.id.au Link: https://lore.kernel.org/r/0c33b96317811edf691e81698aaee8fa45ec3449.165642739... Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/powerpc/mm/dump_linuxpagetables-generic.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)
--- a/arch/powerpc/mm/dump_linuxpagetables-generic.c +++ b/arch/powerpc/mm/dump_linuxpagetables-generic.c @@ -17,9 +17,9 @@ static const struct flag_info flag_array .clear = " ", }, { .mask = _PAGE_RW, - .val = _PAGE_RW, - .set = "rw", - .clear = "r ", + .val = 0, + .set = "r ", + .clear = "rw", }, { #ifndef CONFIG_PPC_BOOK3S_32 .mask = _PAGE_EXEC,
From: Amadeusz Sławiński amadeuszx.slawinski@linux.intel.com
commit 9be080edcca330be4af06b19916c35227891e8bc upstream.
When using callback there was a flow of
ret = -EINVAL if (callback) { offset = callback(); goto out; } ... offset = some other value in case of no callback; ret = offset; out: return ret;
which causes the snd_info_entry_llseek() to return -EINVAL when there is callback handler. Fix this by setting "ret" directly to callback return value before jumping to "out".
Fixes: 73029e0ff18d ("ALSA: info - Implement common llseek for binary mode") Signed-off-by: Amadeusz Sławiński amadeuszx.slawinski@linux.intel.com Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20220817124924.3974577-1-amadeuszx.slawinski@linux... Signed-off-by: Takashi Iwai tiwai@suse.de Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- sound/core/info.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)
--- a/sound/core/info.c +++ b/sound/core/info.c @@ -127,9 +127,9 @@ static loff_t snd_info_entry_llseek(stru entry = data->entry; mutex_lock(&entry->access); if (entry->c.ops->llseek) { - offset = entry->c.ops->llseek(entry, - data->file_private_data, - file, offset, orig); + ret = entry->c.ops->llseek(entry, + data->file_private_data, + file, offset, orig); goto out; }
From: Mikulas Patocka mpatocka@redhat.com
commit 9f414eb409daf4f778f011cf8266d36896bb930b upstream.
The functions clear_bit and set_bit do not imply a memory barrier, thus it may be possible that the waitqueue_active function (which does not take any locks) is moved before clear_bit and it could miss a wakeup event.
Fix this bug by adding a memory barrier after clear_bit.
Signed-off-by: Mikulas Patocka mpatocka@redhat.com Cc: stable@vger.kernel.org Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- net/rds/ib_recv.c | 1 + 1 file changed, 1 insertion(+)
--- a/net/rds/ib_recv.c +++ b/net/rds/ib_recv.c @@ -362,6 +362,7 @@ static int acquire_refill(struct rds_con static void release_refill(struct rds_connection *conn) { clear_bit(RDS_RECV_REFILL, &conn->c_flags); + smp_mb__after_atomic();
/* We don't use wait_on_bit()/wake_up_bit() because our waking is in a * hot path and finding waiters is very rare. We don't want to walk
From: Damien Le Moal damien.lemoal@opensource.wdc.com
commit d3122bf9aa4c974f5e2c0112f799757b3a2779da upstream.
Add the missing command name for ATA_CMD_NCQ_NON_DATA to ata_get_cmd_name().
Fixes: 661ce1f0c4a6 ("libata/libsas: Define ATA_CMD_NCQ_NON_DATA") Cc: stable@vger.kernel.org Signed-off-by: Damien Le Moal damien.lemoal@opensource.wdc.com Reviewed-by: Hannes Reinecke hare@suse.de Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/ata/libata-eh.c | 1 + 1 file changed, 1 insertion(+)
--- a/drivers/ata/libata-eh.c +++ b/drivers/ata/libata-eh.c @@ -2350,6 +2350,7 @@ const char *ata_get_cmd_descript(u8 comm { ATA_CMD_WRITE_QUEUED_FUA_EXT, "WRITE DMA QUEUED FUA EXT" }, { ATA_CMD_FPDMA_READ, "READ FPDMA QUEUED" }, { ATA_CMD_FPDMA_WRITE, "WRITE FPDMA QUEUED" }, + { ATA_CMD_NCQ_NON_DATA, "NCQ NON-DATA" }, { ATA_CMD_FPDMA_SEND, "SEND FPDMA QUEUED" }, { ATA_CMD_FPDMA_RECV, "RECEIVE FPDMA QUEUED" }, { ATA_CMD_PIO_READ, "READ SECTOR(S)" },
From: Christophe JAILLET christophe.jaillet@wanadoo.fr
commit b886f54c300d31c109d2e4336b22922b64e7ba7d upstream.
The commit in Fixes: has introduced an new error handling without branching to the existing error handling path.
Update it now and release some resources if pxamci_init_ocr() fails.
Fixes: 61951fd6cb49 ("mmc: pxamci: let mmc core handle regulators") Signed-off-by: Christophe JAILLET christophe.jaillet@wanadoo.fr Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/07a2dcebf8ede69b484103de8f9df043f158cffd.165886293... Signed-off-by: Ulf Hansson ulf.hansson@linaro.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/mmc/host/pxamci.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/mmc/host/pxamci.c +++ b/drivers/mmc/host/pxamci.c @@ -677,7 +677,7 @@ static int pxamci_probe(struct platform_
ret = pxamci_init_ocr(host); if (ret < 0) - return ret; + goto out;
mmc->caps = 0; host->cmdat = 0;
From: Christophe JAILLET christophe.jaillet@wanadoo.fr
commit 98d7c5e5792b8ce3e1352196dac7f404bb1b46ec upstream.
The commit in Fixes: has moved some code around without updating gotos to the error handling path.
Update it now and release some resources if pxamci_of_init() fails.
Fixes: fa3a5115469c ("mmc: pxamci: call mmc_of_parse()") Signed-off-by: Christophe JAILLET christophe.jaillet@wanadoo.fr Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/6d75855ad4e2470e9ed99e0df21bc30f0c925a29.165886293... Signed-off-by: Ulf Hansson ulf.hansson@linaro.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/mmc/host/pxamci.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/mmc/host/pxamci.c +++ b/drivers/mmc/host/pxamci.c @@ -653,7 +653,7 @@ static int pxamci_probe(struct platform_
ret = pxamci_of_init(pdev, mmc); if (ret) - return ret; + goto out;
host = mmc_priv(mmc); host->mmc = mmc;
From: Filipe Manana fdmanana@suse.com
commit 7a6b75b79902e47f46328b57733f2604774fa2d9 upstream.
During log replay, when processing inode references, if we get an error when looking up for an extended reference at __add_inode_ref(), we ignore it and proceed, returning success (0) if no other error happens after the lookup. This is obviously wrong because in case an extended reference exists and it encodes some name not in the log, we need to unlink it, otherwise the filesystem state will not match the state it had after the last fsync.
So just make __add_inode_ref() return an error it gets from the extended reference lookup.
Fixes: f186373fef005c ("btrfs: extended inode refs") CC: stable@vger.kernel.org # 4.9+ Signed-off-by: Filipe Manana fdmanana@suse.com Reviewed-by: David Sterba dsterba@suse.com Signed-off-by: David Sterba dsterba@suse.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- fs/btrfs/tree-log.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
--- a/fs/btrfs/tree-log.c +++ b/fs/btrfs/tree-log.c @@ -1081,7 +1081,9 @@ again: extref = btrfs_lookup_inode_extref(NULL, root, path, name, namelen, inode_objectid, parent_objectid, 0, 0); - if (!IS_ERR_OR_NULL(extref)) { + if (IS_ERR(extref)) { + return PTR_ERR(extref); + } else if (extref) { u32 item_size; u32 cur_offset = 0; unsigned long base;
From: Steven Rostedt (Google) rostedt@goodmis.org
commit b2380577d4fe1c0ef3fa50417f1e441c016e4cbe upstream.
Make filtering consistent with histograms. As "cpu" can be a field of an event, allow for "common_cpu" to keep it from being confused with the "cpu" field of the event.
Link: https://lkml.kernel.org/r/20220820134401.513062765@goodmis.org Link: https://lore.kernel.org/all/20220820220920.e42fa32b70505b1904f0a0ad@kernel.o...
Cc: stable@vger.kernel.org Cc: Ingo Molnar mingo@kernel.org Cc: Andrew Morton akpm@linux-foundation.org Cc: Tzvetomir Stoyanov tz.stoyanov@gmail.com Cc: Tom Zanussi zanussi@kernel.org Fixes: 1e3bac71c5053 ("tracing/histogram: Rename "cpu" to "common_cpu"") Suggested-by: Masami Hiramatsu (Google) mhiramat@kernel.org Acked-by: Masami Hiramatsu (Google) mhiramat@kernel.org Signed-off-by: Steven Rostedt (Google) rostedt@goodmis.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- kernel/trace/trace_events.c | 1 + 1 file changed, 1 insertion(+)
--- a/kernel/trace/trace_events.c +++ b/kernel/trace/trace_events.c @@ -173,6 +173,7 @@ static int trace_define_generic_fields(v
__generic_field(int, CPU, FILTER_CPU); __generic_field(int, cpu, FILTER_CPU); + __generic_field(int, common_cpu, FILTER_CPU); __generic_field(char *, COMM, FILTER_COMM); __generic_field(char *, comm, FILTER_COMM);
From: Marc Kleine-Budde mkl@pengutronix.de
commit a4cb6e62ea4d36e53fb3c0f18ea4503d7b76674f upstream.
clang emits a -Wunaligned-access warning on struct __packed ems_cpc_msg.
The reason is that the anonymous union msg (not declared as packed) is being packed right after some non naturally aligned variables (3*8 bits + 2*32) inside a packed struct:
| struct __packed ems_cpc_msg { | u8 type; /* type of message */ | u8 length; /* length of data within union 'msg' */ | u8 msgid; /* confirmation handle */ | __le32 ts_sec; /* timestamp in seconds */ | __le32 ts_nsec; /* timestamp in nano seconds */ | /* ^ not naturally aligned */ | | union { | /* ^ not declared as packed */ | u8 generic[64]; | struct cpc_can_msg can_msg; | struct cpc_can_params can_params; | struct cpc_confirm confirmation; | struct cpc_overrun overrun; | struct cpc_can_error error; | struct cpc_can_err_counter err_counter; | u8 can_state; | } msg; | };
Starting from LLVM 14, having an unpacked struct nested in a packed struct triggers a warning. c.f. [1].
Fix the warning by marking the anonymous union as packed.
[1] https://github.com/llvm/llvm-project/issues/55520
Fixes: 702171adeed3 ("ems_usb: Added support for EMS CPC-USB/ARM7 CAN/USB interface") Link: https://lore.kernel.org/all/20220802094021.959858-1-mkl@pengutronix.de Cc: Gerhard Uttenthaler uttenthaler@ems-wuensche.com Cc: Sebastian Haas haas@ems-wuensche.com Signed-off-by: Marc Kleine-Budde mkl@pengutronix.de Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/can/usb/ems_usb.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/net/can/usb/ems_usb.c +++ b/drivers/net/can/usb/ems_usb.c @@ -206,7 +206,7 @@ struct __packed ems_cpc_msg { __le32 ts_sec; /* timestamp in seconds */ __le32 ts_nsec; /* timestamp in nano seconds */
- union { + union __packed { u8 generic[64]; struct cpc_can_msg can_msg; struct cpc_can_params can_params;
From: John Johansen john.johansen@canonical.com
commit 68ff8540cc9e4ab557065b3f635c1ff4c96e1f1c upstream.
Global quieting of denied AppArmor generated file events is not handled correctly. Unfortunately the is checking if quieting of all audit events is set instead of just denied events.
Fixes: 67012e8209df ("AppArmor: basic auditing infrastructure.") Signed-off-by: John Johansen john.johansen@canonical.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- security/apparmor/audit.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/security/apparmor/audit.c +++ b/security/apparmor/audit.c @@ -143,7 +143,7 @@ int aa_audit(int type, struct aa_profile } if (AUDIT_MODE(profile) == AUDIT_QUIET || (type == AUDIT_APPARMOR_DENIED && - AUDIT_MODE(profile) == AUDIT_QUIET)) + AUDIT_MODE(profile) == AUDIT_QUIET_DENIED)) return aad(sa)->error;
if (KILL_MODE(profile) && type == AUDIT_APPARMOR_DENIED)
From: John Johansen john.johansen@canonical.com
commit 511f7b5b835726e844a5fc7444c18e4b8672edfd upstream.
AppArmor is prefixing secids that are converted to secctx with the = to indicate the secctx should only be parsed from an absolute root POV. This allows catching errors where secctx are reparsed back into internal labels.
Unfortunately because audit is using secid to secctx conversion this means that subject and object labels can result in a very unfortunate == that can break audit parsing.
eg. the subj==unconfined term in the below audit message
type=USER_LOGIN msg=audit(1639443365.233:160): pid=1633 uid=0 auid=1000 ses=3 subj==unconfined msg='op=login id=1000 exe="/usr/sbin/sshd" hostname=192.168.122.1 addr=192.168.122.1 terminal=/dev/pts/1 res=success'
Fix this by switch the prepending of = to a _. This still works as a special character to flag this case without breaking audit. Also move this check behind debug as it should not be needed during normal operqation.
Fixes: 26b7899510ae ("apparmor: add support for absolute root view based labels") Reported-by: Casey Schaufler casey@schaufler-ca.com Signed-off-by: John Johansen john.johansen@canonical.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- security/apparmor/include/lib.h | 5 +++++ security/apparmor/label.c | 7 ++++--- 2 files changed, 9 insertions(+), 3 deletions(-)
--- a/security/apparmor/include/lib.h +++ b/security/apparmor/include/lib.h @@ -25,6 +25,11 @@ */
#define DEBUG_ON (aa_g_debug) +/* + * split individual debug cases out in preparation for finer grained + * debug controls in the future. + */ +#define AA_DEBUG_LABEL DEBUG_ON #define dbg_printk(__fmt, __args...) pr_debug(__fmt, ##__args) #define AA_DEBUG(fmt, args...) \ do { \ --- a/security/apparmor/label.c +++ b/security/apparmor/label.c @@ -1641,9 +1641,9 @@ int aa_label_snxprint(char *str, size_t AA_BUG(!str && size != 0); AA_BUG(!label);
- if (flags & FLAG_ABS_ROOT) { + if (AA_DEBUG_LABEL && (flags & FLAG_ABS_ROOT)) { ns = root_ns; - len = snprintf(str, size, "="); + len = snprintf(str, size, "_"); update_for_len(total, len, size, str); } else if (!ns) { ns = labels_ns(label); @@ -1905,7 +1905,8 @@ struct aa_label *aa_label_strn_parse(str AA_BUG(!str);
str = skipn_spaces(str, n); - if (str == NULL || (*str == '=' && base != &root_ns->unconfined->label)) + if (str == NULL || (AA_DEBUG_LABEL && *str == '_' && + base != &root_ns->unconfined->label)) return ERR_PTR(-EINVAL);
len = label_count_strn_entries(str, end - str);
From: John Johansen john.johansen@canonical.com
commit ec240b5905bbb09a03dccffee03062cf39e38dc2 upstream.
When the mount check fails due to a permission check failure instead of explicitly at one of the subcomponent checks, AppArmor is reporting a failure in the flags match. However this is not true and AppArmor can not attribute the error at this point to any particular component, and should only indicate the mount failed due to missing permissions.
Fixes: 2ea3ffb7782a ("apparmor: add mount mediation") Signed-off-by: John Johansen john.johansen@canonical.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- security/apparmor/mount.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-)
--- a/security/apparmor/mount.c +++ b/security/apparmor/mount.c @@ -232,7 +232,8 @@ static const char * const mnt_info_table "failed srcname match", "failed type match", "failed flags match", - "failed data match" + "failed data match", + "failed perms check" };
/* @@ -287,8 +288,8 @@ static int do_match_mnt(struct aa_dfa *d return 0; }
- /* failed at end of flags match */ - return 4; + /* failed at perms check, don't confuse with flags match */ + return 6; }
From: Tom Rix trix@redhat.com
commit 3e2a3a0830a2090e766d0d887d52c67de2a6f323 upstream.
Clang static analysis reports this issue label.c:1802:3: warning: 2nd function call argument is an uninitialized value pr_info("%s", str); ^~~~~~~~~~~~~~~~~~
str is set from a successful call to aa_label_asxprint(&str, ...) On failure a negative value is returned, not a -1. So change the check.
Fixes: f1bd904175e8 ("apparmor: add the base fns() for domain labels") Signed-off-by: Tom Rix trix@redhat.com Signed-off-by: John Johansen john.johansen@canonical.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- security/apparmor/label.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)
--- a/security/apparmor/label.c +++ b/security/apparmor/label.c @@ -1754,7 +1754,7 @@ void aa_label_xaudit(struct audit_buffer if (!use_label_hname(ns, label, flags) || display_mode(ns, label, flags)) { len = aa_label_asxprint(&name, ns, label, flags, gfp); - if (len == -1) { + if (len < 0) { AA_DEBUG("label print error"); return; } @@ -1782,7 +1782,7 @@ void aa_label_seq_xprint(struct seq_file int len;
len = aa_label_asxprint(&str, ns, label, flags, gfp); - if (len == -1) { + if (len < 0) { AA_DEBUG("label print error"); return; } @@ -1805,7 +1805,7 @@ void aa_label_xprintk(struct aa_ns *ns, int len;
len = aa_label_asxprint(&str, ns, label, flags, gfp); - if (len == -1) { + if (len < 0) { AA_DEBUG("label print error"); return; }
From: John Johansen john.johansen@canonical.com
commit 2504db207146543736e877241f3b3de005cbe056 upstream.
When finding the profile via patterned attachments, the longest left match is being set to the static compile time value and not using the runtime computed value.
Fix this by setting the candidate value to the greater of the precomputed value or runtime computed value.
Fixes: 21f606610502 ("apparmor: improve overlapping domain attachment resolution") Signed-off-by: John Johansen john.johansen@canonical.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- security/apparmor/domain.c | 2 +- security/apparmor/include/policy.h | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-)
--- a/security/apparmor/domain.c +++ b/security/apparmor/domain.c @@ -464,7 +464,7 @@ restart: * xattrs, or a longer match */ candidate = profile; - candidate_len = profile->xmatch_len; + candidate_len = max(count, profile->xmatch_len); candidate_xattrs = ret; conflict = false; } --- a/security/apparmor/include/policy.h +++ b/security/apparmor/include/policy.h @@ -139,7 +139,7 @@ struct aa_profile {
const char *attach; struct aa_dfa *xmatch; - int xmatch_len; + unsigned int xmatch_len; enum audit_mode audit; long mode; u32 path_flags;
From: Xin Xiong xiongx18@fudan.edu.cn
commit 11c3627ec6b56c1525013f336f41b79a983b4d46 upstream.
The aa_pivotroot() function has a reference counting bug in a specific path. When aa_replace_current_label() returns on success, the function forgets to decrement the reference count of “target”, which is increased earlier by build_pivotroot(), causing a reference leak.
Fix it by decreasing the refcount of “target” in that path.
Fixes: 2ea3ffb7782a ("apparmor: add mount mediation") Co-developed-by: Xiyu Yang xiyuyang19@fudan.edu.cn Signed-off-by: Xiyu Yang xiyuyang19@fudan.edu.cn Co-developed-by: Xin Tan tanxin.ctf@gmail.com Signed-off-by: Xin Tan tanxin.ctf@gmail.com Signed-off-by: Xin Xiong xiongx18@fudan.edu.cn Signed-off-by: John Johansen john.johansen@canonical.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- security/apparmor/mount.c | 1 + 1 file changed, 1 insertion(+)
--- a/security/apparmor/mount.c +++ b/security/apparmor/mount.c @@ -686,6 +686,7 @@ int aa_pivotroot(struct aa_label *label, aa_put_label(target); goto out; } + aa_put_label(target); } else /* already audited error */ error = PTR_ERR(target);
From: Xiu Jianfeng xiujianfeng@huawei.com
commit 417ea9fe972d2654a268ad66e89c8fcae67017c3 upstream.
When copy_from_user failed, the memory is freed by kvfree. however the management struct and data blob are allocated independently, so only kvfree(data) cause a memleak issue here. Use aa_put_loaddata(data) to fix this issue.
Fixes: a6a52579e52b5 ("apparmor: split load data into management struct and data blob") Signed-off-by: Xiu Jianfeng xiujianfeng@huawei.com Signed-off-by: John Johansen john.johansen@canonical.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- security/apparmor/apparmorfs.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/security/apparmor/apparmorfs.c +++ b/security/apparmor/apparmorfs.c @@ -403,7 +403,7 @@ static struct aa_loaddata *aa_simple_wri
data->size = copy_size; if (copy_from_user(data->data, userbuf, copy_size)) { - kvfree(data); + aa_put_loaddata(data); return ERR_PTR(-EFAULT); }
From: Trond Myklebust trond.myklebust@hammerspace.com
commit 51fd2eb52c0ca8275a906eed81878ef50ae94eb0 upstream.
nfs_idmap_instantiate() will cause the process that is waiting in request_key_with_auxdata() to wake up and exit. If there is a second process waiting for the idmap->idmap_mutex, then it may wake up and start a new call to request_key_with_auxdata(). If the call to idmap_pipe_downcall() from the first process has not yet finished calling nfs_idmap_complete_pipe_upcall_locked(), then we may end up triggering the WARN_ON_ONCE() in nfs_idmap_prepare_pipe_upcall().
The fix is to ensure that we clear idmap->idmap_upcall_data before calling nfs_idmap_instantiate().
Fixes: e9ab41b620e4 ("NFSv4: Clean up the legacy idmapper upcall") Signed-off-by: Trond Myklebust trond.myklebust@hammerspace.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- fs/nfs/nfs4idmap.c | 46 ++++++++++++++++++++++++---------------------- 1 file changed, 24 insertions(+), 22 deletions(-)
--- a/fs/nfs/nfs4idmap.c +++ b/fs/nfs/nfs4idmap.c @@ -547,22 +547,20 @@ nfs_idmap_prepare_pipe_upcall(struct idm return true; }
-static void -nfs_idmap_complete_pipe_upcall_locked(struct idmap *idmap, int ret) +static void nfs_idmap_complete_pipe_upcall(struct idmap_legacy_upcalldata *data, + int ret) { - struct key *authkey = idmap->idmap_upcall_data->authkey; - - kfree(idmap->idmap_upcall_data); - idmap->idmap_upcall_data = NULL; - complete_request_key(authkey, ret); - key_put(authkey); + complete_request_key(data->authkey, ret); + key_put(data->authkey); + kfree(data); }
-static void -nfs_idmap_abort_pipe_upcall(struct idmap *idmap, int ret) +static void nfs_idmap_abort_pipe_upcall(struct idmap *idmap, + struct idmap_legacy_upcalldata *data, + int ret) { - if (idmap->idmap_upcall_data != NULL) - nfs_idmap_complete_pipe_upcall_locked(idmap, ret); + if (cmpxchg(&idmap->idmap_upcall_data, data, NULL) == data) + nfs_idmap_complete_pipe_upcall(data, ret); }
static int nfs_idmap_legacy_upcall(struct key *authkey, void *aux) @@ -599,7 +597,7 @@ static int nfs_idmap_legacy_upcall(struc
ret = rpc_queue_upcall(idmap->idmap_pipe, msg); if (ret < 0) - nfs_idmap_abort_pipe_upcall(idmap, ret); + nfs_idmap_abort_pipe_upcall(idmap, data, ret);
return ret; out2: @@ -655,6 +653,7 @@ idmap_pipe_downcall(struct file *filp, c struct request_key_auth *rka; struct rpc_inode *rpci = RPC_I(file_inode(filp)); struct idmap *idmap = (struct idmap *)rpci->private; + struct idmap_legacy_upcalldata *data; struct key *authkey; struct idmap_msg im; size_t namelen_in; @@ -664,10 +663,11 @@ idmap_pipe_downcall(struct file *filp, c * will have been woken up and someone else may now have used * idmap_key_cons - so after this point we may no longer touch it. */ - if (idmap->idmap_upcall_data == NULL) + data = xchg(&idmap->idmap_upcall_data, NULL); + if (data == NULL) goto out_noupcall;
- authkey = idmap->idmap_upcall_data->authkey; + authkey = data->authkey; rka = get_request_key_auth(authkey);
if (mlen != sizeof(im)) { @@ -689,18 +689,17 @@ idmap_pipe_downcall(struct file *filp, c if (namelen_in == 0 || namelen_in == IDMAP_NAMESZ) { ret = -EINVAL; goto out; -} + }
- ret = nfs_idmap_read_and_verify_message(&im, - &idmap->idmap_upcall_data->idmap_msg, - rka->target_key, authkey); + ret = nfs_idmap_read_and_verify_message(&im, &data->idmap_msg, + rka->target_key, authkey); if (ret >= 0) { key_set_timeout(rka->target_key, nfs_idmap_cache_timeout); ret = mlen; }
out: - nfs_idmap_complete_pipe_upcall_locked(idmap, ret); + nfs_idmap_complete_pipe_upcall(data, ret); out_noupcall: return ret; } @@ -714,7 +713,7 @@ idmap_pipe_destroy_msg(struct rpc_pipe_m struct idmap *idmap = data->idmap;
if (msg->errno) - nfs_idmap_abort_pipe_upcall(idmap, msg->errno); + nfs_idmap_abort_pipe_upcall(idmap, data, msg->errno); }
static void @@ -722,8 +721,11 @@ idmap_release_pipe(struct inode *inode) { struct rpc_inode *rpci = RPC_I(inode); struct idmap *idmap = (struct idmap *)rpci->private; + struct idmap_legacy_upcalldata *data;
- nfs_idmap_abort_pipe_upcall(idmap, -EPIPE); + data = xchg(&idmap->idmap_upcall_data, NULL); + if (data) + nfs_idmap_complete_pipe_upcall(data, -EPIPE); }
int nfs_map_name_to_uid(const struct nfs_server *server, const char *name, size_t namelen, kuid_t *uid)
From: Zhang Xianwei zhang.xianwei8@zte.com.cn
commit e35a5e782f67ed76a65ad0f23a484444a95f000f upstream.
A client should be able to handle getting an EACCES error while doing a mount operation to reclaim state due to NFS4CLNT_RECLAIM_REBOOT being set. If the server returns RPC_AUTH_BADCRED because authentication failed when we execute "exportfs -au", then RECLAIM_COMPLETE will go a wrong way. After mount succeeds, all OPEN call will fail due to an NFS4ERR_GRACE error being returned. This patch is to fix it by resending a RPC request.
Signed-off-by: Zhang Xianwei zhang.xianwei8@zte.com.cn Signed-off-by: Yi Wang wang.yi59@zte.com.cn Fixes: aa5190d0ed7d ("NFSv4: Kill nfs4_async_handle_error() abuses by NFSv4.1") Signed-off-by: Trond Myklebust trond.myklebust@hammerspace.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- fs/nfs/nfs4proc.c | 3 +++ 1 file changed, 3 insertions(+)
--- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -8701,6 +8701,9 @@ static int nfs41_reclaim_complete_handle rpc_delay(task, NFS4_POLL_RETRY_MAX); /* fall through */ case -NFS4ERR_RETRY_UNCACHED_REP: + case -EACCES: + dprintk("%s: failed to reclaim complete error %d for server %s, retrying\n", + __func__, task->tk_status, clp->cl_hostname); return -EAGAIN; case -NFS4ERR_BADSESSION: case -NFS4ERR_DEADSESSION:
From: Trond Myklebust trond.myklebust@hammerspace.com
commit 2135e5d56278ffdb1c2e6d325dc6b87f669b9dac upstream.
If someone cancels the open RPC call, then we must not try to free either the open slot or the layoutget operation arguments, since they are likely still in use by the hung RPC call.
Fixes: 6949493884fe ("NFSv4: Don't hold the layoutget locks across multiple RPC calls") Signed-off-by: Trond Myklebust trond.myklebust@hammerspace.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- fs/nfs/nfs4proc.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-)
--- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -2920,12 +2920,13 @@ static int _nfs4_open_and_get_state(stru }
out: - if (opendata->lgp) { - nfs4_lgopen_release(opendata->lgp); - opendata->lgp = NULL; - } - if (!opendata->cancelled) + if (!opendata->cancelled) { + if (opendata->lgp) { + nfs4_lgopen_release(opendata->lgp); + opendata->lgp = NULL; + } nfs4_sequence_free_slot(&opendata->o_res.seq_res); + } return ret; }
From: Trond Myklebust trond.myklebust@hammerspace.com
commit 6622e3a73112fc336c1c2c582428fb5ef18e456a upstream.
When we're reusing the backchannel requests instead of freeing them, then we should reinitialise any values of the send/receive xdr_bufs so that they reflect the available space.
Fixes: 0d2a970d0ae5 ("SUNRPC: Fix a backchannel race") Signed-off-by: Trond Myklebust trond.myklebust@hammerspace.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- net/sunrpc/backchannel_rqst.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+)
--- a/net/sunrpc/backchannel_rqst.c +++ b/net/sunrpc/backchannel_rqst.c @@ -69,6 +69,17 @@ static void xprt_free_allocation(struct kfree(req); }
+static void xprt_bc_reinit_xdr_buf(struct xdr_buf *buf) +{ + buf->head[0].iov_len = PAGE_SIZE; + buf->tail[0].iov_len = 0; + buf->pages = NULL; + buf->page_len = 0; + buf->flags = 0; + buf->len = 0; + buf->buflen = PAGE_SIZE; +} + static int xprt_alloc_xdr_buf(struct xdr_buf *buf, gfp_t gfp_flags) { struct page *page; @@ -291,6 +302,9 @@ void xprt_free_bc_rqst(struct rpc_rqst * */ spin_lock_bh(&xprt->bc_pa_lock); if (xprt_need_to_requeue(xprt)) { + xprt_bc_reinit_xdr_buf(&req->rq_snd_buf); + xprt_bc_reinit_xdr_buf(&req->rq_rcv_buf); + req->rq_rcv_buf.len = PAGE_SIZE; list_add_tail(&req->rq_bc_pa_list, &xprt->bc_pa_list); xprt->bc_alloc_count++; req = NULL;
From: Miaoqian Lin linmq006@gmail.com
commit 4b32e054335ea0ce50967f63a7bfd4db058b14b9 upstream.
of_parse_phandle() returns a node pointer with refcount incremented, we should use of_node_put() on it when not need anymore. Add missing of_node_put() to avoid refcount leak."
Fixes: c2f6d059abfc ("pinctrl: nomadik: refactor DT parser to take two paths") Signed-off-by: Miaoqian Lin linmq006@gmail.com Link: https://lore.kernel.org/r/20220607111602.57355-1-linmq006@gmail.com Signed-off-by: Linus Walleij linus.walleij@linaro.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/pinctrl/nomadik/pinctrl-nomadik.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
--- a/drivers/pinctrl/nomadik/pinctrl-nomadik.c +++ b/drivers/pinctrl/nomadik/pinctrl-nomadik.c @@ -1455,8 +1455,10 @@ static int nmk_pinctrl_dt_subnode_to_map
has_config = nmk_pinctrl_dt_get_config(np, &configs); np_config = of_parse_phandle(np, "ste,config", 0); - if (np_config) + if (np_config) { has_config |= nmk_pinctrl_dt_get_config(np_config, &configs); + of_node_put(np_config); + } if (has_config) { const char *gpio_name; const char *pin;
From: Nikita Travkin nikita@trvn.ru
commit 44339391c666e46cba522d19c65a6ad1071c68b7 upstream.
GPIO 31, 32 can be muxed to GCC_CAMSS_GP(1,2)_CLK respectively but the function was never assigned to the pingroup (even though the function exists already).
Add this mode to the related pins.
Fixes: 5373a2c5abb6 ("pinctrl: qcom: Add msm8916 pinctrl driver") Signed-off-by: Nikita Travkin nikita@trvn.ru Link: https://lore.kernel.org/r/20220612145955.385787-4-nikita@trvn.ru Signed-off-by: Linus Walleij linus.walleij@linaro.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/pinctrl/qcom/pinctrl-msm8916.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/pinctrl/qcom/pinctrl-msm8916.c +++ b/drivers/pinctrl/qcom/pinctrl-msm8916.c @@ -852,8 +852,8 @@ static const struct msm_pingroup msm8916 PINGROUP(28, pwr_modem_enabled_a, NA, NA, NA, NA, NA, qdss_tracedata_b, NA, atest_combodac), PINGROUP(29, cci_i2c, NA, NA, NA, NA, NA, qdss_tracedata_b, NA, atest_combodac), PINGROUP(30, cci_i2c, NA, NA, NA, NA, NA, NA, NA, qdss_tracedata_b), - PINGROUP(31, cci_timer0, NA, NA, NA, NA, NA, NA, NA, NA), - PINGROUP(32, cci_timer1, NA, NA, NA, NA, NA, NA, NA, NA), + PINGROUP(31, cci_timer0, flash_strobe, NA, NA, NA, NA, NA, NA, NA), + PINGROUP(32, cci_timer1, flash_strobe, NA, NA, NA, NA, NA, NA, NA), PINGROUP(33, cci_async, NA, NA, NA, NA, NA, NA, NA, qdss_tracedata_b), PINGROUP(34, pwr_nav_enabled_a, NA, NA, NA, NA, NA, NA, NA, qdss_tracedata_b), PINGROUP(35, pwr_crypto_enabled_a, NA, NA, NA, NA, NA, NA, NA, qdss_tracedata_b),
From: Sakari Ailus sakari.ailus@linux.intel.com
commit 85140ef275f577f64e8a2c5789447222dfc14fc4 upstream.
The value acpi_add_nondev_subnodes() returns is bool so change the return type of the function to match that.
Fixes: 445b0eb058f5 ("ACPI / property: Add support for data-only subnodes") Signed-off-by: Sakari Ailus sakari.ailus@linux.intel.com Reviewed-by: Andy Shevchenko andriy.shevchenko@linux.intel.com Signed-off-by: Rafael J. Wysocki rafael.j.wysocki@intel.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/acpi/property.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-)
--- a/drivers/acpi/property.c +++ b/drivers/acpi/property.c @@ -132,10 +132,10 @@ static bool acpi_nondev_subnode_ok(acpi_ return acpi_nondev_subnode_data_ok(handle, link, list, parent); }
-static int acpi_add_nondev_subnodes(acpi_handle scope, - const union acpi_object *links, - struct list_head *list, - struct fwnode_handle *parent) +static bool acpi_add_nondev_subnodes(acpi_handle scope, + const union acpi_object *links, + struct list_head *list, + struct fwnode_handle *parent) { bool ret = false; int i;
From: Matthias May matthias.may@westermo.com
commit ca2bb69514a8bc7f83914122f0d596371352416c upstream.
According to Guillaume Nault RT_TOS should never be used for IPv6.
Quote: RT_TOS() is an old macro used to interprete IPv4 TOS as described in the obsolete RFC 1349. It's conceptually wrong to use it even in IPv4 code, although, given the current state of the code, most of the existing calls have no consequence.
But using RT_TOS() in IPv6 code is always a bug: IPv6 never had a "TOS" field to be interpreted the RFC 1349 way. There's no historical compatibility to worry about.
Fixes: 3a56f86f1be6 ("geneve: handle ipv6 priority like ipv4 tos") Acked-by: Guillaume Nault gnault@redhat.com Signed-off-by: Matthias May matthias.may@westermo.com Signed-off-by: Jakub Kicinski kuba@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/geneve.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)
--- a/drivers/net/geneve.c +++ b/drivers/net/geneve.c @@ -799,8 +799,7 @@ static struct dst_entry *geneve_get_v6_d use_cache = false; }
- fl6->flowlabel = ip6_make_flowinfo(RT_TOS(prio), - info->key.label); + fl6->flowlabel = ip6_make_flowinfo(prio, info->key.label); dst_cache = (struct dst_cache *)&info->dst_cache; if (use_cache) { dst = dst_cache_get_ip6(dst_cache, &fl6->saddr);
From: Peilin Ye peilin.ye@bytedance.com
commit 7e97cfed9929eaabc41829c395eb0d1350fccb9d upstream.
An O_NONBLOCK vsock_connect() request may try to reschedule @connect_work. Imagine the following sequence of vsock_connect() requests:
1. The 1st, non-blocking request schedules @connect_work, which will expire after 200 jiffies. Socket state is now SS_CONNECTING;
2. Later, the 2nd, blocking request gets interrupted by a signal after a few jiffies while waiting for the connection to be established. Socket state is back to SS_UNCONNECTED, but @connect_work is still pending, and will expire after 100 jiffies.
3. Now, the 3rd, non-blocking request tries to schedule @connect_work again. Since @connect_work is already scheduled, schedule_delayed_work() silently returns. sock_hold() is called twice, but sock_put() will only be called once in vsock_connect_timeout(), causing a memory leak reported by syzbot:
BUG: memory leak unreferenced object 0xffff88810ea56a40 (size 1232): comm "syz-executor756", pid 3604, jiffies 4294947681 (age 12.350s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 28 00 07 40 00 00 00 00 00 00 00 00 00 00 00 00 (..@............ backtrace: [<ffffffff837c830e>] sk_prot_alloc+0x3e/0x1b0 net/core/sock.c:1930 [<ffffffff837cbe22>] sk_alloc+0x32/0x2e0 net/core/sock.c:1989 [<ffffffff842ccf68>] __vsock_create.constprop.0+0x38/0x320 net/vmw_vsock/af_vsock.c:734 [<ffffffff842ce8f1>] vsock_create+0xc1/0x2d0 net/vmw_vsock/af_vsock.c:2203 [<ffffffff837c0cbb>] __sock_create+0x1ab/0x2b0 net/socket.c:1468 [<ffffffff837c3acf>] sock_create net/socket.c:1519 [inline] [<ffffffff837c3acf>] __sys_socket+0x6f/0x140 net/socket.c:1561 [<ffffffff837c3bba>] __do_sys_socket net/socket.c:1570 [inline] [<ffffffff837c3bba>] __se_sys_socket net/socket.c:1568 [inline] [<ffffffff837c3bba>] __x64_sys_socket+0x1a/0x20 net/socket.c:1568 [<ffffffff84512815>] do_syscall_x64 arch/x86/entry/common.c:50 [inline] [<ffffffff84512815>] do_syscall_64+0x35/0x80 arch/x86/entry/common.c:80 [<ffffffff84600068>] entry_SYSCALL_64_after_hwframe+0x44/0xae <...>
Use mod_delayed_work() instead: if @connect_work is already scheduled, reschedule it, and undo sock_hold() to keep the reference count balanced.
Reported-and-tested-by: syzbot+b03f55bf128f9a38f064@syzkaller.appspotmail.com Fixes: d021c344051a ("VSOCK: Introduce VM Sockets") Co-developed-by: Stefano Garzarella sgarzare@redhat.com Signed-off-by: Stefano Garzarella sgarzare@redhat.com Reviewed-by: Stefano Garzarella sgarzare@redhat.com Signed-off-by: Peilin Ye peilin.ye@bytedance.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- net/vmw_vsock/af_vsock.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-)
--- a/net/vmw_vsock/af_vsock.c +++ b/net/vmw_vsock/af_vsock.c @@ -1215,7 +1215,14 @@ static int vsock_stream_connect(struct s * timeout fires. */ sock_hold(sk); - schedule_delayed_work(&vsk->connect_work, timeout); + + /* If the timeout function is already scheduled, + * reschedule it, then ungrab the socket refcount to + * keep it balanced. + */ + if (mod_delayed_work(system_wq, &vsk->connect_work, + timeout)) + sock_put(sk);
/* Skip ahead to preserve error code set above. */ goto out_wait;
From: Peilin Ye peilin.ye@bytedance.com
commit a3e7b29e30854ed67be0d17687e744ad0c769c4b upstream.
Imagine two non-blocking vsock_connect() requests on the same socket. The first request schedules @connect_work, and after it times out, vsock_connect_timeout() sets *sock* state back to TCP_CLOSE, but keeps *socket* state as SS_CONNECTING.
Later, the second request returns -EALREADY, meaning the socket "already has a pending connection in progress", even though the first request has already timed out.
As suggested by Stefano, fix it by setting *socket* state back to SS_UNCONNECTED, so that the second request will return -ETIMEDOUT.
Suggested-by: Stefano Garzarella sgarzare@redhat.com Fixes: d021c344051a ("VSOCK: Introduce VM Sockets") Reviewed-by: Stefano Garzarella sgarzare@redhat.com Signed-off-by: Peilin Ye peilin.ye@bytedance.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- net/vmw_vsock/af_vsock.c | 1 + 1 file changed, 1 insertion(+)
--- a/net/vmw_vsock/af_vsock.c +++ b/net/vmw_vsock/af_vsock.c @@ -1118,6 +1118,7 @@ static void vsock_connect_timeout(struct if (sk->sk_state == TCP_SYN_SENT && (sk->sk_shutdown != SHUTDOWN_MASK)) { sk->sk_state = TCP_CLOSE; + sk->sk_socket->state = SS_UNCONNECTED; sk->sk_err = ETIMEDOUT; sk->sk_error_report(sk); vsock_transport_cancel_pkt(vsk);
From: Roberto Sassu roberto.sassu@huawei.com
commit 5b245985a6de5ac18b5088c37068816d413fb8ed upstream.
Switch to new EVP API for detecting libcrypto, as Fedora 36 returns an error when it encounters the deprecated function MD5_Init() and the others.
The error would be interpreted as missing libcrypto, while in reality it is not.
Fixes: 6e8ccb4f624a73c5 ("tools/bpf: properly account for libbfd variations") Signed-off-by: Roberto Sassu roberto.sassu@huawei.com Cc: Alexei Starovoitov ast@kernel.org Cc: Andrii Nakryiko andrii@kernel.org Cc: bpf@vger.kernel.org Cc: Daniel Borkmann daniel@iogearbox.net Cc: Ingo Molnar mingo@redhat.com Cc: John Fastabend john.fastabend@gmail.com Cc: KP Singh kpsingh@kernel.org Cc: llvm@lists.linux.dev Cc: Martin KaFai Lau martin.lau@linux.dev Cc: Nathan Chancellor nathan@kernel.org Cc: Nick Desaulniers ndesaulniers@google.com Cc: Nick Terrell terrelln@fb.com Cc: Peter Zijlstra peterz@infradead.org Cc: Quentin Monnet quentin@isovalent.com Cc: Song Liu song@kernel.org Cc: Stanislav Fomichev sdf@google.com Link: https://lore.kernel.org/r/20220719170555.2576993-4-roberto.sassu@huawei.com Signed-off-by: Arnaldo Carvalho de Melo acme@redhat.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- tools/build/feature/test-libcrypto.c | 15 +++++++++++---- 1 file changed, 11 insertions(+), 4 deletions(-)
diff --git a/tools/build/feature/test-libcrypto.c b/tools/build/feature/test-libcrypto.c index a98174e0569c..bc34a5bbb504 100644 --- a/tools/build/feature/test-libcrypto.c +++ b/tools/build/feature/test-libcrypto.c @@ -1,16 +1,23 @@ // SPDX-License-Identifier: GPL-2.0 +#include <openssl/evp.h> #include <openssl/sha.h> #include <openssl/md5.h>
int main(void) { - MD5_CTX context; + EVP_MD_CTX *mdctx; unsigned char md[MD5_DIGEST_LENGTH + SHA_DIGEST_LENGTH]; unsigned char dat[] = "12345"; + unsigned int digest_len;
- MD5_Init(&context); - MD5_Update(&context, &dat[0], sizeof(dat)); - MD5_Final(&md[0], &context); + mdctx = EVP_MD_CTX_new(); + if (!mdctx) + return 0; + + EVP_DigestInit_ex(mdctx, EVP_md5(), NULL); + EVP_DigestUpdate(mdctx, &dat[0], sizeof(dat)); + EVP_DigestFinal_ex(mdctx, &md[0], &digest_len); + EVP_MD_CTX_free(mdctx);
SHA1(&dat[0], sizeof(dat), &md[0]);
From: Dan Carpenter dan.carpenter@oracle.com
commit 45e1058b77feade4e36402828bfe3e0d3363177b upstream.
The call to:
ret = simple_write_to_buffer(buf, size, offp, ubuf, size);
will return success if it is able to write even one byte to "buf". The value of "*offp" controls which byte. This could result in reading uninitialized data when we do the sscanf() on the next line.
This code is not really desigined to handle partial writes where *offp is non-zero and the "buf" is preserved and re-used between writes. Just ban partial writes and replace the simple_write_to_buffer() with copy_from_user().
Fixes: 578b881ba9c4 ("NTB: Add tool test client") Signed-off-by: Dan Carpenter dan.carpenter@oracle.com Signed-off-by: Jon Mason jdmason@kudzu.us Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/ntb/test/ntb_tool.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-)
--- a/drivers/ntb/test/ntb_tool.c +++ b/drivers/ntb/test/ntb_tool.c @@ -367,14 +367,16 @@ static ssize_t tool_fn_write(struct tool u64 bits; int n;
+ if (*offp) + return 0; + buf = kmalloc(size + 1, GFP_KERNEL); if (!buf) return -ENOMEM;
- ret = simple_write_to_buffer(buf, size, offp, ubuf, size); - if (ret < 0) { + if (copy_from_user(buf, ubuf, size)) { kfree(buf); - return ret; + return -EFAULT; }
buf[size] = 0;
From: Dan Carpenter dan.carpenter@oracle.com
commit 32ad11127b95236dfc52375f3707853194a7f4b4 upstream.
This code tries to store -EFAULT in an unsigned int. The xenbus_file_read() function returns type ssize_t so the negative value is returned as a positive value to the user.
This change forces another change to the min() macro. Originally, the min() macro used "unsigned" type which checkpatch complains about. Also unsigned type would break if "len" were not capped at MAX_RW_COUNT. Use size_t for the min(). (No effect on runtime for the min_t() change).
Fixes: 2fb3683e7b16 ("xen: Add xenbus device driver") Signed-off-by: Dan Carpenter dan.carpenter@oracle.com Reviewed-by: Oleksandr Tyshchenko oleksandr_tyshchenko@epam.com Link: https://lore.kernel.org/r/YutxJUaUYRG/VLVc@kili Signed-off-by: Juergen Gross jgross@suse.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/xen/xenbus/xenbus_dev_frontend.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/xen/xenbus/xenbus_dev_frontend.c +++ b/drivers/xen/xenbus/xenbus_dev_frontend.c @@ -128,7 +128,7 @@ static ssize_t xenbus_file_read(struct f { struct xenbus_file_priv *u = filp->private_data; struct read_buffer *rb; - unsigned i; + ssize_t i; int ret;
mutex_lock(&u->reply_mutex); @@ -148,7 +148,7 @@ again: rb = list_entry(u->read_buffers.next, struct read_buffer, list); i = 0; while (i < len) { - unsigned sz = min((unsigned)len - i, rb->len - rb->cons); + size_t sz = min_t(size_t, len - i, rb->len - rb->cons);
ret = copy_to_user(ubuf + i, &rb->msg[rb->cons], sz);
From: Duoming Zhou duoming@zju.edu.cn
commit 3f4093e2bf4673f218c0bf17d8362337c400e77b upstream.
There are use-after-free bugs caused by tst_timer. The root cause is that there are no functions to stop tst_timer in idt77252_exit(). One of the possible race conditions is shown below:
(thread 1) | (thread 2) | idt77252_init_one | init_card | fill_tst | mod_timer(&card->tst_timer, ...) idt77252_exit | (wait a time) | tst_timer | | ... kfree(card) // FREE | | card->soft_tst[e] // USE
The idt77252_dev is deallocated in idt77252_exit() and used in timer handler.
This patch adds del_timer_sync() in idt77252_exit() in order that the timer handler could be stopped before the idt77252_dev is deallocated.
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Signed-off-by: Duoming Zhou duoming@zju.edu.cn Link: https://lore.kernel.org/r/20220805070008.18007-1-duoming@zju.edu.cn Signed-off-by: Jakub Kicinski kuba@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/atm/idt77252.c | 1 + 1 file changed, 1 insertion(+)
--- a/drivers/atm/idt77252.c +++ b/drivers/atm/idt77252.c @@ -3767,6 +3767,7 @@ static void __exit idt77252_exit(void) card = idt77252_chain; dev = card->atmdev; idt77252_chain = card->next; + del_timer_sync(&card->tst_timer);
if (dev->phy->stop) dev->phy->stop(dev);
From: Al Viro viro@zeniv.linux.org.uk
commit 8535c239ac674f7ead0f2652932d35c52c4123b2 upstream.
make sure that ->orig_r2 is negative for everything except the syscalls.
Fixes: 82ed08dd1b0e ("nios2: Exception handling") Signed-off-by: Al Viro viro@zeniv.linux.org.uk Signed-off-by: Dinh Nguyen dinguyen@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/nios2/include/asm/entry.h | 3 ++- arch/nios2/kernel/entry.S | 4 +--- 2 files changed, 3 insertions(+), 4 deletions(-)
--- a/arch/nios2/include/asm/entry.h +++ b/arch/nios2/include/asm/entry.h @@ -50,7 +50,8 @@ stw r13, PT_R13(sp) stw r14, PT_R14(sp) stw r15, PT_R15(sp) - stw r2, PT_ORIG_R2(sp) + movi r24, -1 + stw r24, PT_ORIG_R2(sp) stw r7, PT_ORIG_R7(sp)
stw ra, PT_RA(sp) --- a/arch/nios2/kernel/entry.S +++ b/arch/nios2/kernel/entry.S @@ -185,6 +185,7 @@ ENTRY(handle_system_call) ldw r5, PT_R5(sp)
local_restart: + stw r2, PT_ORIG_R2(sp) /* Check that the requested system call is within limits */ movui r1, __NR_syscalls bgeu r2, r1, ret_invsyscall @@ -336,9 +337,6 @@ external_interrupt: /* skip if no interrupt is pending */ beq r12, r0, ret_from_interrupt
- movi r24, -1 - stw r24, PT_ORIG_R2(sp) - /* * Process an external hardware interrupt. */
From: Al Viro viro@zeniv.linux.org.uk
commit 45ec746c65097c25e77d24eae8fee0def5b6cc5d upstream.
fill the gaps in there with sys_ni_syscall, as everyone does...
Fixes: 82ed08dd1b0e ("nios2: Exception handling") Signed-off-by: Al Viro viro@zeniv.linux.org.uk Signed-off-by: Dinh Nguyen dinguyen@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/nios2/kernel/entry.S | 1 - arch/nios2/kernel/syscall_table.c | 1 + 2 files changed, 1 insertion(+), 1 deletion(-)
--- a/arch/nios2/kernel/entry.S +++ b/arch/nios2/kernel/entry.S @@ -193,7 +193,6 @@ local_restart: movhi r11, %hiadj(sys_call_table) add r1, r1, r11 ldw r1, %lo(sys_call_table)(r1) - beq r1, r0, ret_invsyscall
/* Check if we are being traced */ GET_THREAD_INFO r11 --- a/arch/nios2/kernel/syscall_table.c +++ b/arch/nios2/kernel/syscall_table.c @@ -25,5 +25,6 @@ #define __SYSCALL(nr, call) [nr] = (call),
void *sys_call_table[__NR_syscalls] = { + [0 ... __NR_syscalls-1] = sys_ni_syscall, #include <asm/unistd.h> };
From: Al Viro viro@zeniv.linux.org.uk
commit 25ba820ef36bdbaf9884adeac69b6e1821a7df76 upstream.
all checks done before letting the tracer modify the register state are worthless...
Fixes: 82ed08dd1b0e ("nios2: Exception handling") Signed-off-by: Al Viro viro@zeniv.linux.org.uk Signed-off-by: Dinh Nguyen dinguyen@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/nios2/kernel/entry.S | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-)
--- a/arch/nios2/kernel/entry.S +++ b/arch/nios2/kernel/entry.S @@ -255,9 +255,9 @@ traced_system_call: ldw r6, PT_R6(sp) ldw r7, PT_R7(sp)
- /* Fetch the syscall function, we don't need to check the boundaries - * since this is already done. - */ + /* Fetch the syscall function. */ + movui r1, __NR_syscalls + bgeu r2, r1, traced_invsyscall slli r1, r2, 2 movhi r11,%hiadj(sys_call_table) add r1, r1, r11 @@ -287,6 +287,11 @@ end_translate_rc_and_ret2: RESTORE_SWITCH_STACK br ret_from_exception
+ /* If the syscall number was invalid return ENOSYS */ +traced_invsyscall: + movi r2, -ENOSYS + br translate_rc_and_ret2 + Luser_return: GET_THREAD_INFO r11 /* get thread_info pointer */ ldw r10, TI_FLAGS(r11) /* get thread_info->flags */
From: Al Viro viro@zeniv.linux.org.uk
commit 2d631bd58fe0ea3e3350212e23c9aba1fb606514 upstream.
sys_foo() returns -512 (aka -ERESTARTSYS) => do_signal() sees 512 in r2 and 1 in r1.
sys_foo() returns 512 => do_signal() sees 512 in r2 and 0 in r1.
The former is restart-worthy; the latter obviously isn't.
Fixes: b53e906d255d ("nios2: Signal handling support") Signed-off-by: Al Viro viro@zeniv.linux.org.uk Signed-off-by: Dinh Nguyen dinguyen@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/nios2/kernel/signal.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/nios2/kernel/signal.c +++ b/arch/nios2/kernel/signal.c @@ -240,7 +240,7 @@ static int do_signal(struct pt_regs *reg /* * If we were from a system call, check for system call restarting... */ - if (regs->orig_r2 >= 0) { + if (regs->orig_r2 >= 0 && regs->r1) { continue_addr = regs->ea; restart_addr = continue_addr - 4; retval = regs->r2;
From: Al Viro viro@zeniv.linux.org.uk
commit 411a76b7219555c55867466c82d70ce928d6c9e1 upstream.
Fixes: b53e906d255d ("nios2: Signal handling support") Signed-off-by: Al Viro viro@zeniv.linux.org.uk Signed-off-by: Dinh Nguyen dinguyen@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/nios2/kernel/signal.c | 1 + 1 file changed, 1 insertion(+)
--- a/arch/nios2/kernel/signal.c +++ b/arch/nios2/kernel/signal.c @@ -261,6 +261,7 @@ static int do_signal(struct pt_regs *reg regs->ea = restart_addr; break; } + regs->orig_r2 = -1; }
if (get_signal(&ksig)) {
From: Al Viro viro@zeniv.linux.org.uk
commit fd0c153daad135d0ec1a53c5dbe6936a724d6ae1 upstream.
If we use the ancient SysV syscall ABI, we'd better have tell the kernel how to claim that a negative return value is a success. Use ->orig_r2 for that - it's inaccessible via ptrace, so it's a fair game for changes and it's normally[*] non-negative on return from syscall. Set to -1; syscall is not going to be restart-worthy by definition, so we won't interfere with that use either.
[*] the only exception is rt_sigreturn(), where we skip the entire messing with r1/r2 anyway.
Fixes: 82ed08dd1b0e ("nios2: Exception handling") Signed-off-by: Al Viro viro@zeniv.linux.org.uk Signed-off-by: Dinh Nguyen dinguyen@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/nios2/include/asm/ptrace.h | 2 ++ arch/nios2/kernel/entry.S | 6 ++++++ 2 files changed, 8 insertions(+)
--- a/arch/nios2/include/asm/ptrace.h +++ b/arch/nios2/include/asm/ptrace.h @@ -74,6 +74,8 @@ extern void show_regs(struct pt_regs *); ((struct pt_regs *)((unsigned long)current_thread_info() + THREAD_SIZE)\ - 1)
+#define force_successful_syscall_return() (current_pt_regs()->orig_r2 = -1) + int do_syscall_trace_enter(void); void do_syscall_trace_exit(void); #endif /* __ASSEMBLY__ */ --- a/arch/nios2/kernel/entry.S +++ b/arch/nios2/kernel/entry.S @@ -213,6 +213,9 @@ local_restart: translate_rc_and_ret: movi r1, 0 bge r2, zero, 3f + ldw r1, PT_ORIG_R2(sp) + addi r1, r1, 1 + beq r1, zero, 3f sub r2, zero, r2 movi r1, 1 3: @@ -276,6 +279,9 @@ traced_system_call: translate_rc_and_ret2: movi r1, 0 bge r2, zero, 4f + ldw r1, PT_ORIG_R2(sp) + addi r1, r1, 1 + beq r1, zero, 4f sub r2, zero, r2 movi r1, 1 4:
From: Pablo Neira Ayuso pablo@netfilter.org
commit 271c5ca826e0c3c53e0eb4032f8eaedea1ee391c upstream.
While looping to build the bitmap of used anonymous set names, check the current set in the iteration, instead of the one that is being created.
Fixes: 37a9cc525525 ("netfilter: nf_tables: add generation mask to sets") Signed-off-by: Pablo Neira Ayuso pablo@netfilter.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- net/netfilter/nf_tables_api.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/net/netfilter/nf_tables_api.c +++ b/net/netfilter/nf_tables_api.c @@ -3098,7 +3098,7 @@ cont: list_for_each_entry(i, &ctx->table->sets, list) { int tmp;
- if (!nft_is_active_next(ctx->net, set)) + if (!nft_is_active_next(ctx->net, i)) continue; if (!sscanf(i->name, name, &tmp)) continue;
From: Michael Ellerman mpe@ellerman.id.au
commit 8d48562a2729742f767b0fdd994d6b2a56a49c63 upstream.
The recent change to get_phb_number() causes a DEBUG_ATOMIC_SLEEP warning on some systems:
BUG: sleeping function called from invalid context at kernel/locking/mutex.c:580 in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 1, name: swapper preempt_count: 1, expected: 0 RCU nest depth: 0, expected: 0 1 lock held by swapper/1: #0: c157efb0 (hose_spinlock){+.+.}-{2:2}, at: pcibios_alloc_controller+0x64/0x220 Preemption disabled at: [<00000000>] 0x0 CPU: 0 PID: 1 Comm: swapper Not tainted 5.19.0-yocto-standard+ #1 Call Trace: [d101dc90] [c073b264] dump_stack_lvl+0x50/0x8c (unreliable) [d101dcb0] [c0093b70] __might_resched+0x258/0x2a8 [d101dcd0] [c0d3e634] __mutex_lock+0x6c/0x6ec [d101dd50] [c0a84174] of_alias_get_id+0x50/0xf4 [d101dd80] [c002ec78] pcibios_alloc_controller+0x1b8/0x220 [d101ddd0] [c140c9dc] pmac_pci_init+0x198/0x784 [d101de50] [c140852c] discover_phbs+0x30/0x4c [d101de60] [c0007fd4] do_one_initcall+0x94/0x344 [d101ded0] [c1403b40] kernel_init_freeable+0x1a8/0x22c [d101df10] [c00086e0] kernel_init+0x34/0x160 [d101df30] [c001b334] ret_from_kernel_thread+0x5c/0x64
This is because pcibios_alloc_controller() holds hose_spinlock but of_alias_get_id() takes of_mutex which can sleep.
The hose_spinlock protects the phb_bitmap, and also the hose_list, but it doesn't need to be held while get_phb_number() calls the OF routines, because those are only looking up information in the device tree.
So fix it by having get_phb_number() take the hose_spinlock itself, only where required, and then dropping the lock before returning. pcibios_alloc_controller() then needs to take the lock again before the list_add() but that's safe, the order of the list is not important.
Fixes: 0fe1e96fef0a ("powerpc/pci: Prefer PCI domain assignment via DT 'linux,pci-domain' and alias") Reported-by: Guenter Roeck linux@roeck-us.net Signed-off-by: Michael Ellerman mpe@ellerman.id.au Link: https://lore.kernel.org/r/20220815065550.1303620-1-mpe@ellerman.id.au Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/powerpc/kernel/pci-common.c | 16 ++++++++++------ 1 file changed, 10 insertions(+), 6 deletions(-)
--- a/arch/powerpc/kernel/pci-common.c +++ b/arch/powerpc/kernel/pci-common.c @@ -75,10 +75,6 @@ const struct dma_map_ops *get_pci_dma_op } EXPORT_SYMBOL(get_pci_dma_ops);
-/* - * This function should run under locking protection, specifically - * hose_spinlock. - */ static int get_phb_number(struct device_node *dn) { int ret, phb_id = -1; @@ -115,15 +111,20 @@ static int get_phb_number(struct device_ if (!ret) phb_id = (int)(prop & (MAX_PHBS - 1));
+ spin_lock(&hose_spinlock); + /* We need to be sure to not use the same PHB number twice. */ if ((phb_id >= 0) && !test_and_set_bit(phb_id, phb_bitmap)) - return phb_id; + goto out_unlock;
/* If everything fails then fallback to dynamic PHB numbering. */ phb_id = find_first_zero_bit(phb_bitmap, MAX_PHBS); BUG_ON(phb_id >= MAX_PHBS); set_bit(phb_id, phb_bitmap);
+out_unlock: + spin_unlock(&hose_spinlock); + return phb_id; }
@@ -134,10 +135,13 @@ struct pci_controller *pcibios_alloc_con phb = zalloc_maybe_bootmem(sizeof(struct pci_controller), GFP_KERNEL); if (phb == NULL) return NULL; - spin_lock(&hose_spinlock); + phb->global_number = get_phb_number(dev); + + spin_lock(&hose_spinlock); list_add_tail(&phb->list_node, &hose_list); spin_unlock(&hose_spinlock); + phb->dn = dev; phb->is_dynamic = slab_is_available(); #ifdef CONFIG_PPC64
From: Alan Brady alan.brady@intel.com
commit 57c942bc3bef0970f0b21f8e0998e76a900ea80d upstream.
When a tx_timeout fires, the PF attempts to recover by incrementally resetting. First we try a PFR, then CORER and finally a GLOBR. If the GLOBR fails, then we keep hitting the tx_timeout and incrementing the recovery level and issuing dmesgs, which is both annoying to the user and accomplishes nothing.
If the GLOBR fails, then we're pretty much totally hosed, and there's not much else we can do to recover, so this makes it such that we just kill the VSI and stop hitting the tx_timeout in such a case.
Fixes: 41c445ff0f48 ("i40e: main driver core") Signed-off-by: Alan Brady alan.brady@intel.com Signed-off-by: Mateusz Palczewski mateusz.palczewski@intel.com Tested-by: Gurucharan gurucharanx.g@intel.com (A Contingent worker at Intel) Signed-off-by: Tony Nguyen anthony.l.nguyen@intel.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/ethernet/intel/i40e/i40e_main.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c +++ b/drivers/net/ethernet/intel/i40e/i40e_main.c @@ -397,7 +397,9 @@ static void i40e_tx_timeout(struct net_d set_bit(__I40E_GLOBAL_RESET_REQUESTED, pf->state); break; default: - netdev_err(netdev, "tx_timeout recovery unsuccessful\n"); + netdev_err(netdev, "tx_timeout recovery unsuccessful, device is in non-recoverable state.\n"); + set_bit(__I40E_DOWN_REQUESTED, pf->state); + set_bit(__I40E_VSI_DOWN_REQUESTED, vsi->state); break; }
From: Csókás Bence csokas.bence@prolan.hu
commit 61d5e2a251fb20c2c5e998c3f1d52ed6d5360319 upstream.
Code reimplements functionality already in `fec_ptp_read()`, but misses check for FEC_QUIRK_BUG_CAPTURE. Replace with function call.
Fixes: 28b5f058cf1d ("net: fec: ptp: fix convergence issue to support LinuxPTP stack") Signed-off-by: Csókás Bence csokas.bence@prolan.hu Link: https://lore.kernel.org/r/20220811101348.13755-1-csokas.bence@prolan.hu Signed-off-by: Jakub Kicinski kuba@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/ethernet/freescale/fec_ptp.c | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-)
--- a/drivers/net/ethernet/freescale/fec_ptp.c +++ b/drivers/net/ethernet/freescale/fec_ptp.c @@ -141,11 +141,7 @@ static int fec_ptp_enable_pps(struct fec * NSEC_PER_SEC - ts.tv_nsec. Add the remaining nanoseconds * to current timer would be next second. */ - tempval = readl(fep->hwp + FEC_ATIME_CTRL); - tempval |= FEC_T_CTRL_CAPTURE; - writel(tempval, fep->hwp + FEC_ATIME_CTRL); - - tempval = readl(fep->hwp + FEC_ATIME); + tempval = fep->cc.read(&fep->cc); /* Convert the ptp local counter to 1588 timestamp */ ns = timecounter_cyc2time(&fep->tc, tempval); ts = ns_to_timespec64(ns);
From: Lin Ma linma@zju.edu.cn
commit 6faee3d4ee8be0f0367d0c3d826afb3571b7a5e0 upstream.
The commit c23d92b80e0b ("igb: Teardown SR-IOV before unregister_netdev()") places the unregister_netdev() call after the igb_disable_sriov() call to avoid functionality issue.
However, it introduces several race conditions when detaching a device. For example, when .remove() is called, the below interleaving leads to use-after-free.
(FREE from device detaching) | (USE from netdev core) igb_remove | igb_ndo_get_vf_config igb_disable_sriov | vf >= adapter->vfs_allocated_count? kfree(adapter->vf_data) | adapter->vfs_allocated_count = 0 | | memcpy(... adapter->vf_data[vf]
Moreover, the igb_disable_sriov() also suffers from data race with the requests from VF driver.
(FREE from device detaching) | (USE from requests) igb_remove | igb_msix_other igb_disable_sriov | igb_msg_task kfree(adapter->vf_data) | vf < adapter->vfs_allocated_count adapter->vfs_allocated_count = 0 |
To this end, this commit first eliminates the data races from netdev core by using rtnl_lock (similar to commit 719479230893 ("dpaa2-eth: add MAC/PHY support through phylink")). And then adds a spinlock to eliminate races from driver requests. (similar to commit 1e53834ce541 ("ixgbe: Add locking to prevent panic when setting sriov_numvfs to zero")
Fixes: c23d92b80e0b ("igb: Teardown SR-IOV before unregister_netdev()") Signed-off-by: Lin Ma linma@zju.edu.cn Tested-by: Konrad Jankowski konrad0.jankowski@intel.com Signed-off-by: Tony Nguyen anthony.l.nguyen@intel.com Link: https://lore.kernel.org/r/20220817184921.735244-1-anthony.l.nguyen@intel.com Signed-off-by: Jakub Kicinski kuba@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/ethernet/intel/igb/igb.h | 2 ++ drivers/net/ethernet/intel/igb/igb_main.c | 12 +++++++++++- 2 files changed, 13 insertions(+), 1 deletion(-)
--- a/drivers/net/ethernet/intel/igb/igb.h +++ b/drivers/net/ethernet/intel/igb/igb.h @@ -594,6 +594,8 @@ struct igb_adapter { struct igb_mac_addr *mac_table; struct vf_mac_filter vf_macs; struct vf_mac_filter *vf_mac_list; + /* lock for VF resources */ + spinlock_t vfs_lock; };
/* flags controlling PTP/1588 function */ --- a/drivers/net/ethernet/intel/igb/igb_main.c +++ b/drivers/net/ethernet/intel/igb/igb_main.c @@ -3517,6 +3517,7 @@ static int igb_disable_sriov(struct pci_ struct net_device *netdev = pci_get_drvdata(pdev); struct igb_adapter *adapter = netdev_priv(netdev); struct e1000_hw *hw = &adapter->hw; + unsigned long flags;
/* reclaim resources allocated to VFs */ if (adapter->vf_data) { @@ -3529,12 +3530,13 @@ static int igb_disable_sriov(struct pci_ pci_disable_sriov(pdev); msleep(500); } - + spin_lock_irqsave(&adapter->vfs_lock, flags); kfree(adapter->vf_mac_list); adapter->vf_mac_list = NULL; kfree(adapter->vf_data); adapter->vf_data = NULL; adapter->vfs_allocated_count = 0; + spin_unlock_irqrestore(&adapter->vfs_lock, flags); wr32(E1000_IOVCTL, E1000_IOVCTL_REUSE_VFQ); wrfl(); msleep(100); @@ -3694,7 +3696,9 @@ static void igb_remove(struct pci_dev *p igb_release_hw_control(adapter);
#ifdef CONFIG_PCI_IOV + rtnl_lock(); igb_disable_sriov(pdev); + rtnl_unlock(); #endif
unregister_netdev(netdev); @@ -3855,6 +3859,9 @@ static int igb_sw_init(struct igb_adapte
spin_lock_init(&adapter->nfc_lock); spin_lock_init(&adapter->stats64_lock); + + /* init spinlock to avoid concurrency of VF resources */ + spin_lock_init(&adapter->vfs_lock); #ifdef CONFIG_PCI_IOV switch (hw->mac.type) { case e1000_82576: @@ -7601,8 +7608,10 @@ unlock: static void igb_msg_task(struct igb_adapter *adapter) { struct e1000_hw *hw = &adapter->hw; + unsigned long flags; u32 vf;
+ spin_lock_irqsave(&adapter->vfs_lock, flags); for (vf = 0; vf < adapter->vfs_allocated_count; vf++) { /* process any reset requests */ if (!igb_check_for_rst(hw, vf)) @@ -7616,6 +7625,7 @@ static void igb_msg_task(struct igb_adap if (!igb_check_for_ack(hw, vf)) igb_rcv_ack_from_vf(adapter, vf); } + spin_unlock_irqrestore(&adapter->vfs_lock, flags); }
/**
From: Andrew Donnellan ajd@linux.ibm.com
commit 012e8d2034f1bda8863435cd589636e618d6a659 upstream.
Commit 36d4b36b6959 ("lib/nodemask: inline next_node_in() and node_random()") refactored some code by moving node_random() from lib/nodemask.c to include/linux/nodemask.h, thus requiring nodemask.h to include random.h, which conditionally defines add_latent_entropy() depending on whether the macro LATENT_ENTROPY_PLUGIN is defined.
This broke the build on powerpc, where nodemask.h is indirectly included in arch/powerpc/kernel/prom_init.c, part of the early boot machinery that is excluded from the latent entropy plugin using DISABLE_LATENT_ENTROPY_PLUGIN. It turns out that while we add a gcc flag to disable the actual plugin, we don't undefine LATENT_ENTROPY_PLUGIN.
This leads to the following:
CC arch/powerpc/kernel/prom_init.o In file included from ./include/linux/nodemask.h:97, from ./include/linux/mmzone.h:17, from ./include/linux/gfp.h:7, from ./include/linux/xarray.h:15, from ./include/linux/radix-tree.h:21, from ./include/linux/idr.h:15, from ./include/linux/kernfs.h:12, from ./include/linux/sysfs.h:16, from ./include/linux/kobject.h:20, from ./include/linux/pci.h:35, from arch/powerpc/kernel/prom_init.c:24: ./include/linux/random.h: In function 'add_latent_entropy': ./include/linux/random.h:25:46: error: 'latent_entropy' undeclared (first use in this function); did you mean 'add_latent_entropy'? 25 | add_device_randomness((const void *)&latent_entropy, sizeof(latent_entropy)); | ^~~~~~~~~~~~~~ | add_latent_entropy ./include/linux/random.h:25:46: note: each undeclared identifier is reported only once for each function it appears in make[2]: *** [scripts/Makefile.build:249: arch/powerpc/kernel/prom_init.o] Fehler 1 make[1]: *** [scripts/Makefile.build:465: arch/powerpc/kernel] Fehler 2 make: *** [Makefile:1855: arch/powerpc] Error 2
Change the DISABLE_LATENT_ENTROPY_PLUGIN flags to undefine LATENT_ENTROPY_PLUGIN for files where the plugin is disabled.
Cc: Yury Norov yury.norov@gmail.com Fixes: 38addce8b600 ("gcc-plugins: Add latent_entropy plugin") Link: https://bugzilla.kernel.org/show_bug.cgi?id=216367 Link: https://lore.kernel.org/linuxppc-dev/alpine.DEB.2.22.394.2208152006320.28932... Reported-by: Erhard Furtner erhard_f@mailbox.org Signed-off-by: Andrew Donnellan ajd@linux.ibm.com Reviewed-by: Yury Norov yury.norov@gmail.com Signed-off-by: Kees Cook keescook@chromium.org Link: https://lore.kernel.org/r/20220816051720.44108-1-ajd@linux.ibm.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- scripts/Makefile.gcc-plugins | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/scripts/Makefile.gcc-plugins +++ b/scripts/Makefile.gcc-plugins @@ -6,7 +6,7 @@ gcc-plugin-$(CONFIG_GCC_PLUGIN_LATENT_EN gcc-plugin-cflags-$(CONFIG_GCC_PLUGIN_LATENT_ENTROPY) \ += -DLATENT_ENTROPY_PLUGIN ifdef CONFIG_GCC_PLUGIN_LATENT_ENTROPY - DISABLE_LATENT_ENTROPY_PLUGIN += -fplugin-arg-latent_entropy_plugin-disable + DISABLE_LATENT_ENTROPY_PLUGIN += -fplugin-arg-latent_entropy_plugin-disable -ULATENT_ENTROPY_PLUGIN endif export DISABLE_LATENT_ENTROPY_PLUGIN
From: Hector Martin marcan@marcan.st
commit 415d832497098030241605c52ea83d4e2cfa7879 upstream.
These operations are documented as always ordered in include/asm-generic/bitops/instrumented-atomic.h, and producer-consumer type use cases where one side needs to ensure a flag is left pending after some shared data was updated rely on this ordering, even in the failure case.
This is the case with the workqueue code, which currently suffers from a reproducible ordering violation on Apple M1 platforms (which are notoriously out-of-order) that ends up causing the TTY layer to fail to deliver data to userspace properly under the right conditions. This change fixes that bug.
Change the documentation to restrict the "no order on failure" story to the _lock() variant (for which it makes sense), and remove the early-exit from the generic implementation, which is what causes the missing barrier semantics in that case. Without this, the remaining atomic op is fully ordered (including on ARM64 LSE, as of recent versions of the architecture spec).
Suggested-by: Linus Torvalds torvalds@linux-foundation.org Cc: stable@vger.kernel.org Fixes: e986a0d6cb36 ("locking/atomics, asm-generic/bitops/atomic.h: Rewrite using atomic_*() APIs") Fixes: 61e02392d3c7 ("locking/atomic/bitops: Document and clarify ordering semantics for failed test_and_{}_bit()") Signed-off-by: Hector Martin marcan@marcan.st Acked-by: Will Deacon will@kernel.org Reviewed-by: Arnd Bergmann arnd@arndb.de Signed-off-by: Linus Torvalds torvalds@linux-foundation.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- Documentation/atomic_bitops.txt | 2 +- include/asm-generic/bitops/atomic.h | 6 ------ 2 files changed, 1 insertion(+), 7 deletions(-)
--- a/Documentation/atomic_bitops.txt +++ b/Documentation/atomic_bitops.txt @@ -59,7 +59,7 @@ Like with atomic_t, the rule of thumb is - RMW operations that have a return value are fully ordered.
- RMW operations that are conditional are unordered on FAILURE, - otherwise the above rules apply. In the case of test_and_{}_bit() operations, + otherwise the above rules apply. In the case of test_and_set_bit_lock(), if the bit in memory is unchanged by the operation then it is deemed to have failed.
--- a/include/asm-generic/bitops/atomic.h +++ b/include/asm-generic/bitops/atomic.h @@ -35,9 +35,6 @@ static inline int test_and_set_bit(unsig unsigned long mask = BIT_MASK(nr);
p += BIT_WORD(nr); - if (READ_ONCE(*p) & mask) - return 1; - old = atomic_long_fetch_or(mask, (atomic_long_t *)p); return !!(old & mask); } @@ -48,9 +45,6 @@ static inline int test_and_clear_bit(uns unsigned long mask = BIT_MASK(nr);
p += BIT_WORD(nr); - if (!(READ_ONCE(*p) & mask)) - return 0; - old = atomic_long_fetch_andnot(mask, (atomic_long_t *)p); return !!(old & mask); }
From: Liang He windhl@126.com
[ Upstream commit 91b3c8dbe898df158fd2a84675f3a284ff6666f7 ]
In this function, there are two refcount leak bugs: (1) when breaking out of for_each_endpoint_of_node(), we need call the of_node_put() for the 'ep'; (2) we should call of_node_put() for the reference returned by of_graph_get_remote_port() when it is not used anymore.
Fixes: bbbe775ec5b5 ("drm: Add support for Amlogic Meson Graphic Controller") Signed-off-by: Liang He windhl@126.com Acked-by: Martin Blumenstingl martin.blumenstingl@googlemail.com Acked-by: Neil Armstrong narmstrong@baylibre.com Signed-off-by: Neil Armstrong narmstrong@baylibre.com Link: https://patchwork.freedesktop.org/patch/msgid/20220726010722.1319416-1-windh... Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/meson/meson_drv.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/meson/meson_drv.c b/drivers/gpu/drm/meson/meson_drv.c index 1887473cdd79..9959522ce802 100644 --- a/drivers/gpu/drm/meson/meson_drv.c +++ b/drivers/gpu/drm/meson/meson_drv.c @@ -141,8 +141,11 @@ static bool meson_vpu_has_available_connectors(struct device *dev) for_each_endpoint_of_node(dev->of_node, ep) { /* If the endpoint node exists, consider it enabled */ remote = of_graph_get_remote_port(ep); - if (remote) + if (remote) { + of_node_put(remote); + of_node_put(ep); return true; + } }
return false;
From: Pavan Chebbi pavan.chebbi@broadcom.com
[ Upstream commit afd306a65cedb9589564bdb23a0c368abc4215fd ]
The Broadcom BCM5750x NICs may be multi-function devices. They do not advertise ACS capability. Peer-to-peer transactions are not possible between the individual functions, so it is safe to treat them as fully isolated.
Add an ACS quirk for these devices so the functions can be in independent IOMMU groups and attached individually to userspace applications using VFIO.
Link: https://lore.kernel.org/r/1654796507-28610-1-git-send-email-michael.chan@bro... Signed-off-by: Pavan Chebbi pavan.chebbi@broadcom.com Signed-off-by: Michael Chan michael.chan@broadcom.com Signed-off-by: Bjorn Helgaas bhelgaas@google.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/pci/quirks.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index 7cd38c9eaa02..f494e76faaa0 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -4799,6 +4799,9 @@ static const struct pci_dev_acs_enabled { { PCI_VENDOR_ID_AMPERE, 0xE00C, pci_quirk_xgene_acs }, /* Broadcom multi-function device */ { PCI_VENDOR_ID_BROADCOM, 0x16D7, pci_quirk_mf_endpoint_acs }, + { PCI_VENDOR_ID_BROADCOM, 0x1750, pci_quirk_mf_endpoint_acs }, + { PCI_VENDOR_ID_BROADCOM, 0x1751, pci_quirk_mf_endpoint_acs }, + { PCI_VENDOR_ID_BROADCOM, 0x1752, pci_quirk_mf_endpoint_acs }, { PCI_VENDOR_ID_BROADCOM, 0xD714, pci_quirk_brcm_acs }, { 0 } };
From: Sai Prakash Ranjan quic_saipraka@quicinc.com
[ Upstream commit 443685992bda9bb4f8b17fc02c9f6c60e62b1461 ]
Fix -Woverflow warnings for tegra irqchip driver which is a result of moving arm64 custom MMIO accessor macros to asm-generic function implementations giving a bonus type-checking now and uncovering these overflow warnings.
drivers/irqchip/irq-tegra.c: In function ‘tegra_ictlr_suspend’: drivers/irqchip/irq-tegra.c:151:18: warning: large integer implicitly truncated to unsigned type [-Woverflow] writel_relaxed(~0ul, ictlr + ICTLR_COP_IER_CLR); ^
Suggested-by: Marc Zyngier maz@kernel.org Signed-off-by: Sai Prakash Ranjan quic_saipraka@quicinc.com Reviewed-by: Arnd Bergmann arnd@arndb.de Cc: Marc Zyngier maz@kernel.org Signed-off-by: Arnd Bergmann arnd@arndb.de Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/irqchip/irq-tegra.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/drivers/irqchip/irq-tegra.c b/drivers/irqchip/irq-tegra.c index 0abc0cd1c32e..1b3048ecb600 100644 --- a/drivers/irqchip/irq-tegra.c +++ b/drivers/irqchip/irq-tegra.c @@ -157,10 +157,10 @@ static int tegra_ictlr_suspend(void) lic->cop_iep[i] = readl_relaxed(ictlr + ICTLR_COP_IEP_CLASS);
/* Disable COP interrupts */ - writel_relaxed(~0ul, ictlr + ICTLR_COP_IER_CLR); + writel_relaxed(GENMASK(31, 0), ictlr + ICTLR_COP_IER_CLR);
/* Disable CPU interrupts */ - writel_relaxed(~0ul, ictlr + ICTLR_CPU_IER_CLR); + writel_relaxed(GENMASK(31, 0), ictlr + ICTLR_CPU_IER_CLR);
/* Enable the wakeup sources of ictlr */ writel_relaxed(lic->ictlr_wake_mask[i], ictlr + ICTLR_CPU_IER_SET); @@ -181,12 +181,12 @@ static void tegra_ictlr_resume(void)
writel_relaxed(lic->cpu_iep[i], ictlr + ICTLR_CPU_IEP_CLASS); - writel_relaxed(~0ul, ictlr + ICTLR_CPU_IER_CLR); + writel_relaxed(GENMASK(31, 0), ictlr + ICTLR_CPU_IER_CLR); writel_relaxed(lic->cpu_ier[i], ictlr + ICTLR_CPU_IER_SET); writel_relaxed(lic->cop_iep[i], ictlr + ICTLR_COP_IEP_CLASS); - writel_relaxed(~0ul, ictlr + ICTLR_COP_IER_CLR); + writel_relaxed(GENMASK(31, 0), ictlr + ICTLR_COP_IER_CLR); writel_relaxed(lic->cop_ier[i], ictlr + ICTLR_COP_IER_SET); } @@ -321,7 +321,7 @@ static int __init tegra_ictlr_init(struct device_node *node, lic->base[i] = base;
/* Disable all interrupts */ - writel_relaxed(~0UL, base + ICTLR_CPU_IER_CLR); + writel_relaxed(GENMASK(31, 0), base + ICTLR_CPU_IER_CLR); /* All interrupts target IRQ */ writel_relaxed(0, base + ICTLR_CPU_IEP_CLASS);
From: Liang He windhl@126.com
[ Upstream commit 40a959d7042bb7711e404ad2318b30e9f92c6b9b ]
In ohci_hcd_ppc_of_probe(), of_find_compatible_node() will return a node pointer with refcount incremented. We should use of_node_put() when it is not used anymore.
Acked-by: Alan Stern stern@rowland.harvard.edu Signed-off-by: Liang He windhl@126.com Link: https://lore.kernel.org/r/20220617034637.4003115-1-windhl@126.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/usb/host/ohci-ppc-of.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/usb/host/ohci-ppc-of.c b/drivers/usb/host/ohci-ppc-of.c index 76a9b40b08f1..96c5c7655283 100644 --- a/drivers/usb/host/ohci-ppc-of.c +++ b/drivers/usb/host/ohci-ppc-of.c @@ -169,6 +169,7 @@ static int ohci_hcd_ppc_of_probe(struct platform_device *op) release_mem_region(res.start, 0x4); } else pr_debug("%s: cannot get ehci offset from fdt\n", __FILE__); + of_node_put(np); }
irq_dispose_mapping(irq);
From: Liang He windhl@126.com
[ Upstream commit 9d6d5303c39b8bc182475b22f45504106a07f086 ]
In usbhs_rza1_hardware_init(), of_find_node_by_name() will return a node pointer with refcount incremented. We should use of_node_put() when it is not used anymore.
Signed-off-by: Liang He windhl@126.com Link: https://lore.kernel.org/r/20220618023205.4056548-1-windhl@126.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/usb/renesas_usbhs/rza.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/drivers/usb/renesas_usbhs/rza.c b/drivers/usb/renesas_usbhs/rza.c index 5b287257ec11..04eeaf6a028a 100644 --- a/drivers/usb/renesas_usbhs/rza.c +++ b/drivers/usb/renesas_usbhs/rza.c @@ -23,6 +23,10 @@ static int usbhs_rza1_hardware_init(struct platform_device *pdev) extal_clk = of_find_node_by_name(NULL, "extal"); of_property_read_u32(usb_x1_clk, "clock-frequency", &freq_usb); of_property_read_u32(extal_clk, "clock-frequency", &freq_extal); + + of_node_put(usb_x1_clk); + of_node_put(extal_clk); + if (freq_usb == 0) { if (freq_extal == 12000000) { /* Select 12MHz XTAL */
From: Pascal Terjan pterjan@google.com
[ Upstream commit 6169525b76764acb81918aa387ac168fb9a55575 ]
When relying on devm it doesn't get freed early enough which causes the following warning when unloading the module:
[249348.837181] remove_proc_entry: removing non-empty directory 'irq/20', leaking at least 'vboxguest' [249348.837219] WARNING: CPU: 0 PID: 6708 at fs/proc/generic.c:715 remove_proc_entry+0x119/0x140
[249348.837379] Call Trace: [249348.837385] unregister_irq_proc+0xbd/0xe0 [249348.837392] free_desc+0x23/0x60 [249348.837396] irq_free_descs+0x4a/0x70 [249348.837401] irq_domain_free_irqs+0x160/0x1a0 [249348.837452] mp_unmap_irq+0x5c/0x60 [249348.837458] acpi_unregister_gsi_ioapic+0x29/0x40 [249348.837463] acpi_unregister_gsi+0x17/0x30 [249348.837467] acpi_pci_irq_disable+0xbf/0xe0 [249348.837473] pcibios_disable_device+0x20/0x30 [249348.837478] pci_disable_device+0xef/0x120 [249348.837482] vbg_pci_remove+0x6c/0x70 [vboxguest]
Reviewed-by: Hans de Goede hdegoede@redhat.com Signed-off-by: Pascal Terjan pterjan@google.com Link: https://lore.kernel.org/r/20220612133744.4030602-1-pterjan@google.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/virt/vboxguest/vboxguest_linux.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/drivers/virt/vboxguest/vboxguest_linux.c b/drivers/virt/vboxguest/vboxguest_linux.c index 94e055ee7ad6..aa65b20883ef 100644 --- a/drivers/virt/vboxguest/vboxguest_linux.c +++ b/drivers/virt/vboxguest/vboxguest_linux.c @@ -341,8 +341,8 @@ static int vbg_pci_probe(struct pci_dev *pci, const struct pci_device_id *id) goto err_vbg_core_exit; }
- ret = devm_request_irq(dev, pci->irq, vbg_core_isr, IRQF_SHARED, - DEVICE_NAME, gdev); + ret = request_irq(pci->irq, vbg_core_isr, IRQF_SHARED, DEVICE_NAME, + gdev); if (ret) { vbg_err("vboxguest: Error requesting irq: %d\n", ret); goto err_vbg_core_exit; @@ -352,7 +352,7 @@ static int vbg_pci_probe(struct pci_dev *pci, const struct pci_device_id *id) if (ret) { vbg_err("vboxguest: Error misc_register %s failed: %d\n", DEVICE_NAME, ret); - goto err_vbg_core_exit; + goto err_free_irq; }
ret = misc_register(&gdev->misc_device_user); @@ -388,6 +388,8 @@ static int vbg_pci_probe(struct pci_dev *pci, const struct pci_device_id *id) misc_deregister(&gdev->misc_device_user); err_unregister_misc_device: misc_deregister(&gdev->misc_device); +err_free_irq: + free_irq(pci->irq, gdev); err_vbg_core_exit: vbg_core_exit(gdev); err_disable_pcidev: @@ -404,6 +406,7 @@ static void vbg_pci_remove(struct pci_dev *pci) vbg_gdev = NULL; mutex_unlock(&vbg_gdev_mutex);
+ free_irq(pci->irq, gdev); device_remove_file(gdev->dev, &dev_attr_host_features); device_remove_file(gdev->dev, &dev_attr_host_version); misc_deregister(&gdev->misc_device_user);
From: Robert Marko robimarko@gmail.com
[ Upstream commit 1bf7305e79aab095196131bdc87a97796e0e3fac ]
Once the usb sleep clocks are disabled, clock framework is trying to disable the sleep clock source also.
However, it seems that it cannot be disabled and trying to do so produces: [ 245.436390] ------------[ cut here ]------------ [ 245.441233] gcc_sleep_clk_src status stuck at 'on' [ 245.441254] WARNING: CPU: 2 PID: 223 at clk_branch_wait+0x130/0x140 [ 245.450435] Modules linked in: xhci_plat_hcd xhci_hcd dwc3 dwc3_qcom leds_gpio [ 245.456601] CPU: 2 PID: 223 Comm: sh Not tainted 5.18.0-rc4 #215 [ 245.463889] Hardware name: Xiaomi AX9000 (DT) [ 245.470050] pstate: 204000c5 (nzCv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 245.474307] pc : clk_branch_wait+0x130/0x140 [ 245.481073] lr : clk_branch_wait+0x130/0x140 [ 245.485588] sp : ffffffc009f2bad0 [ 245.489838] x29: ffffffc009f2bad0 x28: ffffff8003e6c800 x27: 0000000000000000 [ 245.493057] x26: 0000000000000000 x25: 0000000000000000 x24: ffffff800226ef20 [ 245.500175] x23: ffffffc0089ff550 x22: 0000000000000000 x21: ffffffc008476ad0 [ 245.507294] x20: 0000000000000000 x19: ffffffc00965ac70 x18: fffffffffffc51a7 [ 245.514413] x17: 68702e3030303837 x16: 3a6d726f6674616c x15: ffffffc089f2b777 [ 245.521531] x14: ffffffc0095c9d18 x13: 0000000000000129 x12: 0000000000000129 [ 245.528649] x11: 00000000ffffffea x10: ffffffc009621d18 x9 : 0000000000000001 [ 245.535767] x8 : 0000000000000001 x7 : 0000000000017fe8 x6 : 0000000000000001 [ 245.542885] x5 : ffffff803fdca6d8 x4 : 0000000000000000 x3 : 0000000000000027 [ 245.550002] x2 : 0000000000000027 x1 : 0000000000000023 x0 : 0000000000000026 [ 245.557122] Call trace: [ 245.564229] clk_branch_wait+0x130/0x140 [ 245.566490] clk_branch2_disable+0x2c/0x40 [ 245.570656] clk_core_disable+0x60/0xb0 [ 245.574561] clk_core_disable+0x68/0xb0 [ 245.578293] clk_disable+0x30/0x50 [ 245.582113] dwc3_qcom_remove+0x60/0xc0 [dwc3_qcom] [ 245.585588] platform_remove+0x28/0x60 [ 245.590361] device_remove+0x4c/0x80 [ 245.594179] device_release_driver_internal+0x1dc/0x230 [ 245.597914] device_driver_detach+0x18/0x30 [ 245.602861] unbind_store+0xec/0x110 [ 245.607027] drv_attr_store+0x24/0x40 [ 245.610847] sysfs_kf_write+0x44/0x60 [ 245.614405] kernfs_fop_write_iter+0x128/0x1c0 [ 245.618052] new_sync_write+0xc0/0x130 [ 245.622391] vfs_write+0x1d4/0x2a0 [ 245.626123] ksys_write+0x58/0xe0 [ 245.629508] __arm64_sys_write+0x1c/0x30 [ 245.632895] invoke_syscall.constprop.0+0x5c/0x110 [ 245.636890] do_el0_svc+0xa0/0x150 [ 245.641488] el0_svc+0x18/0x60 [ 245.644872] el0t_64_sync_handler+0xa4/0x130 [ 245.647914] el0t_64_sync+0x174/0x178 [ 245.652340] ---[ end trace 0000000000000000 ]---
So, add CLK_IS_CRITICAL flag to the clock so that the kernel won't try to disable the sleep clock.
Signed-off-by: Robert Marko robimarko@gmail.com Signed-off-by: Bjorn Andersson bjorn.andersson@linaro.org Link: https://lore.kernel.org/r/20220515210048.483898-10-robimarko@gmail.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/clk/qcom/gcc-ipq8074.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/clk/qcom/gcc-ipq8074.c b/drivers/clk/qcom/gcc-ipq8074.c index c93161d6824a..ee41aec106ac 100644 --- a/drivers/clk/qcom/gcc-ipq8074.c +++ b/drivers/clk/qcom/gcc-ipq8074.c @@ -675,6 +675,7 @@ static struct clk_branch gcc_sleep_clk_src = { }, .num_parents = 1, .ops = &clk_branch2_ops, + .flags = CLK_IS_CRITICAL, }, }, };
From: Jozef Martiniak jomajm@gmail.com
[ Upstream commit 04cb742d4d8f30dc2e83b46ac317eec09191c68e ]
after usb_ep_queue() if wait_for_completion_interruptible() is interrupted we need to wait until IRQ gets finished.
Otherwise complete() from epio_complete() can corrupt stack.
Signed-off-by: Jozef Martiniak jomajm@gmail.com Link: https://lore.kernel.org/r/20220708070645.6130-1-jomajm@gmail.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/usb/gadget/legacy/inode.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/usb/gadget/legacy/inode.c b/drivers/usb/gadget/legacy/inode.c index 3ebcbd199a79..b0a2b8805f41 100644 --- a/drivers/usb/gadget/legacy/inode.c +++ b/drivers/usb/gadget/legacy/inode.c @@ -361,6 +361,7 @@ ep_io (struct ep_data *epdata, void *buf, unsigned len) spin_unlock_irq (&epdata->dev->lock);
DBG (epdata->dev, "endpoint gone\n"); + wait_for_completion(&done); epdata->status = -ENODEV; } }
From: Christophe JAILLET christophe.jaillet@wanadoo.fr
[ Upstream commit 3a15b45b5454da862376b5d69a4967f5c6fa1368 ]
A bitmap_zalloc() must be balanced by a corresponding bitmap_free() in the error handling path of afu_allocate_irqs().
Acked-by: Andrew Donnellan ajd@linux.ibm.com Signed-off-by: Christophe JAILLET christophe.jaillet@wanadoo.fr Link: https://lore.kernel.org/r/ce5869418f5838187946eb6b11a52715a93ece3d.165756684... Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/misc/cxl/irq.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/misc/cxl/irq.c b/drivers/misc/cxl/irq.c index ce08a9f22308..0dbe78383f8f 100644 --- a/drivers/misc/cxl/irq.c +++ b/drivers/misc/cxl/irq.c @@ -353,6 +353,7 @@ int afu_allocate_irqs(struct cxl_context *ctx, u32 count)
out: cxl_ops->release_irq_ranges(&ctx->irqs, ctx->afu->adapter); + bitmap_free(ctx->irq_bitmap); afu_irq_name_free(ctx); return -ENOMEM; }
From: Uwe Kleine-König u.kleine-koenig@pengutronix.de
[ Upstream commit 1e42f82cbec7b2cc4873751e7791e6611901c5fc ]
It's not allowed to quit remove early without cleaning up completely. Otherwise this results in resource leaks that probably yield graver problems later. Here for example some tasklets might survive the lifetime of the sprd-dma device and access sdev which is freed after .remove() returns.
As none of the device freeing requires an active device, just ignore the return value of pm_runtime_get_sync().
Signed-off-by: Uwe Kleine-König u.kleine-koenig@pengutronix.de Reviewed-by: Baolin Wang baolin.wang7@gmail.com Link: https://lore.kernel.org/r/20220721204054.323602-1-u.kleine-koenig@pengutroni... Signed-off-by: Vinod Koul vkoul@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/dma/sprd-dma.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-)
diff --git a/drivers/dma/sprd-dma.c b/drivers/dma/sprd-dma.c index 0fadf6a08494..4ec9a924a338 100644 --- a/drivers/dma/sprd-dma.c +++ b/drivers/dma/sprd-dma.c @@ -987,11 +987,8 @@ static int sprd_dma_remove(struct platform_device *pdev) { struct sprd_dma_dev *sdev = platform_get_drvdata(pdev); struct sprd_dma_chn *c, *cn; - int ret;
- ret = pm_runtime_get_sync(&pdev->dev); - if (ret < 0) - return ret; + pm_runtime_get_sync(&pdev->dev);
/* explicitly free the irq */ if (sdev->irq > 0)
From: Wentao_Liang Wentao_Liang_g@163.com
[ Upstream commit 104212471b1c1817b311771d817fb692af983173 ]
In line 2884, "raid5_release_stripe(sh);" drops the reference to sh and may cause sh to be released. However, sh is subsequently used in lines 2886 "if (sh->batch_head && sh != sh->batch_head)". This may result in an use-after-free bug.
It can be fixed by moving "raid5_release_stripe(sh);" to the bottom of the function.
Signed-off-by: Wentao_Liang Wentao_Liang_g@163.com Signed-off-by: Song Liu song@kernel.org Signed-off-by: Jens Axboe axboe@kernel.dk Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/md/raid5.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index dad426cc0f90..6f04473f0838 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -2670,10 +2670,10 @@ static void raid5_end_write_request(struct bio *bi) if (!test_and_clear_bit(R5_DOUBLE_LOCKED, &sh->dev[i].flags)) clear_bit(R5_LOCKED, &sh->dev[i].flags); set_bit(STRIPE_HANDLE, &sh->state); - raid5_release_stripe(sh);
if (sh->batch_head && sh != sh->batch_head) raid5_release_stripe(sh->batch_head); + raid5_release_stripe(sh); }
static void raid5_error(struct mddev *mddev, struct md_rdev *rdev)
From: Ye Bin yebin10@huawei.com
[ Upstream commit b24e77ef1c6d4dbf42749ad4903c97539cc9755a ]
Now if check directoy entry is corrupted, ext4_empty_dir may return true then directory will be removed when file system mounted with "errors=continue". In order not to make things worse just return false when directory is corrupted.
Signed-off-by: Ye Bin yebin10@huawei.com Reviewed-by: Jan Kara jack@suse.cz Link: https://lore.kernel.org/r/20220622090223.682234-1-yebin10@huawei.com Signed-off-by: Theodore Ts'o tytso@mit.edu Signed-off-by: Sasha Levin sashal@kernel.org --- fs/ext4/namei.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-)
diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c index ebc8e75e1ef1..a878b9a8d9ea 100644 --- a/fs/ext4/namei.c +++ b/fs/ext4/namei.c @@ -2842,11 +2842,8 @@ bool ext4_empty_dir(struct inode *inode) de = (struct ext4_dir_entry_2 *) (bh->b_data + (offset & (sb->s_blocksize - 1))); if (ext4_check_dir_entry(inode, NULL, de, bh, - bh->b_data, bh->b_size, offset)) { - offset = (offset | (sb->s_blocksize - 1)) + 1; - continue; - } - if (le32_to_cpu(de->inode)) { + bh->b_data, bh->b_size, offset) || + le32_to_cpu(de->inode)) { brelse(bh); return false; }
From: Kiselev, Oleg okiselev@amazon.com
[ Upstream commit 69cb8e9d8cd97cdf5e293b26d70a9dee3e35e6bd ]
This patch avoids an attempt to resize the filesystem to an unaligned cluster boundary. An online resize to a size that is not integral to cluster size results in the last iteration attempting to grow the fs by a negative amount, which trips a BUG_ON and leaves the fs with a corrupted in-memory superblock.
Signed-off-by: Oleg Kiselev okiselev@amazon.com Link: https://lore.kernel.org/r/0E92A0AB-4F16-4F1A-94B7-702CC6504FDE@amazon.com Signed-off-by: Theodore Ts'o tytso@mit.edu Signed-off-by: Sasha Levin sashal@kernel.org --- fs/ext4/resize.c | 10 ++++++++++ 1 file changed, 10 insertions(+)
diff --git a/fs/ext4/resize.c b/fs/ext4/resize.c index 88f9627225fc..dd23c97ae951 100644 --- a/fs/ext4/resize.c +++ b/fs/ext4/resize.c @@ -1981,6 +1981,16 @@ int ext4_resize_fs(struct super_block *sb, ext4_fsblk_t n_blocks_count) } brelse(bh);
+ /* + * For bigalloc, trim the requested size to the nearest cluster + * boundary to avoid creating an unusable filesystem. We do this + * silently, instead of returning an error, to avoid breaking + * callers that blindly resize the filesystem to the full size of + * the underlying block device. + */ + if (ext4_has_feature_bigalloc(sb)) + n_blocks_count &= ~((1 << EXT4_CLUSTER_BITS(sb)) - 1); + retry: o_blocks_count = ext4_blocks_count(es);
From: Guenter Roeck linux@roeck-us.net
[ Upstream commit 0cc011c576aaa4de505046f7a6c90933d7c749a9 ]
In some circumstances, attempts are made to add entries to or to remove entries from an uninitialized list. A prime example is amdgpu_bo_vm_destroy(): It is indirectly called from ttm_bo_init_reserved() if that function fails, and tries to remove an entry from a list. However, that list is only initialized in amdgpu_bo_create_vm() after the call to ttm_bo_init_reserved() returned success. This results in crashes such as
BUG: kernel NULL pointer dereference, address: 0000000000000000 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 0 P4D 0 Oops: 0000 [#1] PREEMPT SMP NOPTI CPU: 1 PID: 1479 Comm: chrome Not tainted 5.10.110-15768-g29a72e65dae5 Hardware name: Google Grunt/Grunt, BIOS Google_Grunt.11031.149.0 07/15/2020 RIP: 0010:__list_del_entry_valid+0x26/0x7d ... Call Trace: amdgpu_bo_vm_destroy+0x48/0x8b ttm_bo_init_reserved+0x1d7/0x1e0 amdgpu_bo_create+0x212/0x476 ? amdgpu_bo_user_destroy+0x23/0x23 ? kmem_cache_alloc+0x60/0x271 amdgpu_bo_create_vm+0x40/0x7d amdgpu_vm_pt_create+0xe8/0x24b ...
Check if the list's prev and next pointers are NULL to catch such problems.
Link: https://lkml.kernel.org/r/20220531222951.92073-1-linux@roeck-us.net Signed-off-by: Guenter Roeck linux@roeck-us.net Cc: Steven Rostedt rostedt@goodmis.org Signed-off-by: Andrew Morton akpm@linux-foundation.org Signed-off-by: Sasha Levin sashal@kernel.org --- lib/list_debug.c | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-)
diff --git a/lib/list_debug.c b/lib/list_debug.c index 5d5424b51b74..413daa72a3d8 100644 --- a/lib/list_debug.c +++ b/lib/list_debug.c @@ -20,7 +20,11 @@ bool __list_add_valid(struct list_head *new, struct list_head *prev, struct list_head *next) { - if (CHECK_DATA_CORRUPTION(next->prev != prev, + if (CHECK_DATA_CORRUPTION(prev == NULL, + "list_add corruption. prev is NULL.\n") || + CHECK_DATA_CORRUPTION(next == NULL, + "list_add corruption. next is NULL.\n") || + CHECK_DATA_CORRUPTION(next->prev != prev, "list_add corruption. next->prev should be prev (%px), but was %px. (next=%px).\n", prev, next->prev, next) || CHECK_DATA_CORRUPTION(prev->next != next, @@ -42,7 +46,11 @@ bool __list_del_entry_valid(struct list_head *entry) prev = entry->prev; next = entry->next;
- if (CHECK_DATA_CORRUPTION(next == LIST_POISON1, + if (CHECK_DATA_CORRUPTION(next == NULL, + "list_del corruption, %px->next is NULL\n", entry) || + CHECK_DATA_CORRUPTION(prev == NULL, + "list_del corruption, %px->prev is NULL\n", entry) || + CHECK_DATA_CORRUPTION(next == LIST_POISON1, "list_del corruption, %px->next is LIST_POISON1 (%px)\n", entry, LIST_POISON1) || CHECK_DATA_CORRUPTION(prev == LIST_POISON2,
From: Liang He windhl@126.com
[ Upstream commit d24d7bb2cd947676f9b71fb944d045e09b8b282f ]
In soc_info(), of_find_node_by_type() will return a node pointer with refcount incremented. We should use of_node_put() when it is not used anymore.
Acked-by: Timur Tabi timur@kernel.org Signed-off-by: Liang He windhl@126.com Link: https://lore.kernel.org/r/20220618060850.4058525-1-windhl@126.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/tty/serial/ucc_uart.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/tty/serial/ucc_uart.c b/drivers/tty/serial/ucc_uart.c index 2b6376e6e5ad..eb0d3f55235a 100644 --- a/drivers/tty/serial/ucc_uart.c +++ b/drivers/tty/serial/ucc_uart.c @@ -1141,6 +1141,8 @@ static unsigned int soc_info(unsigned int *rev_h, unsigned int *rev_l) /* No compatible property, so try the name. */ soc_string = np->name;
+ of_node_put(np); + /* Extract the SOC number from the "PowerPC," string */ if ((sscanf(soc_string, "PowerPC,%u", &soc) != 1) || !soc) return 0;
From: Schspa Shi schspa@gmail.com
[ Upstream commit 6641085e8d7b3f061911517f79a2a15a0a21b97b ]
On buffer resize failure, vfio_info_cap_add() will free the buffer, report zero for the size, and return -ENOMEM. As additional hardening, also clear the buffer pointer to prevent any chance of a double free.
Signed-off-by: Schspa Shi schspa@gmail.com Reviewed-by: Cornelia Huck cohuck@redhat.com Link: https://lore.kernel.org/r/20220629022948.55608-1-schspa@gmail.com Signed-off-by: Alex Williamson alex.williamson@redhat.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/vfio/vfio.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/vfio/vfio.c b/drivers/vfio/vfio.c index 7a386fb30bf1..0d146b45e0b4 100644 --- a/drivers/vfio/vfio.c +++ b/drivers/vfio/vfio.c @@ -1808,6 +1808,7 @@ struct vfio_info_cap_header *vfio_info_cap_add(struct vfio_info_cap *caps, buf = krealloc(caps->buf, caps->size + size, GFP_KERNEL); if (!buf) { kfree(caps->buf); + caps->buf = NULL; caps->size = 0; return ERR_PTR(-ENOMEM); }
From: Liang He windhl@126.com
[ Upstream commit 7a9f743ceead60ed454c46fbc3085ee9a79cbebb ]
We should call of_node_put() for the reference 'uctl_node' returned by of_get_parent() which will increase the refcount. Otherwise, there will be a refcount leak bug.
Signed-off-by: Liang He windhl@126.com Signed-off-by: Thomas Bogendoerfer tsbogend@alpha.franken.de Signed-off-by: Sasha Levin sashal@kernel.org --- arch/mips/cavium-octeon/octeon-platform.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/arch/mips/cavium-octeon/octeon-platform.c b/arch/mips/cavium-octeon/octeon-platform.c index 4d83f5bc7211..54c8389decda 100644 --- a/arch/mips/cavium-octeon/octeon-platform.c +++ b/arch/mips/cavium-octeon/octeon-platform.c @@ -86,11 +86,12 @@ static void octeon2_usb_clocks_start(struct device *dev) "refclk-frequency", &clock_rate); if (i) { dev_err(dev, "No UCTL "refclk-frequency"\n"); + of_node_put(uctl_node); goto exit; } i = of_property_read_string(uctl_node, "refclk-type", &clock_type); - + of_node_put(uctl_node); if (!i && strcmp("crystal", clock_type) == 0) is_crystal_clock = true; }
From: Celeste Liu coelacanthus@outlook.com
[ Upstream commit 2139619bcad7ac44cc8f6f749089120594056613 ]
As mentioned in Table 4.5 in RISC-V spec Volume 2 Section 4.3, write but not read is "Reserved for future use.". For now, they are not valid. In the current code, -wx is marked as invalid, but -w- is not marked as invalid. This patch refines that judgment.
Reported-by: xctan xc-tan@outlook.com Co-developed-by: dram dramforever@live.com Signed-off-by: dram dramforever@live.com Co-developed-by: Ruizhe Pan c141028@gmail.com Signed-off-by: Ruizhe Pan c141028@gmail.com Signed-off-by: Celeste Liu coelacanthus@outlook.com Link: https://lore.kernel.org/r/PH7PR14MB559464DBDD310E755F5B21E8CEDC9@PH7PR14MB55... Signed-off-by: Palmer Dabbelt palmer@rivosinc.com Signed-off-by: Sasha Levin sashal@kernel.org --- arch/riscv/kernel/sys_riscv.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/arch/riscv/kernel/sys_riscv.c b/arch/riscv/kernel/sys_riscv.c index db44da32701f..516aaa19daf2 100644 --- a/arch/riscv/kernel/sys_riscv.c +++ b/arch/riscv/kernel/sys_riscv.c @@ -26,9 +26,8 @@ static long riscv_sys_mmap(unsigned long addr, unsigned long len, if (unlikely(offset & (~PAGE_MASK >> page_shift_offset))) return -EINVAL;
- if ((prot & PROT_WRITE) && (prot & PROT_EXEC)) - if (unlikely(!(prot & PROT_READ))) - return -EINVAL; + if (unlikely((prot & PROT_WRITE) && !(prot & PROT_READ))) + return -EINVAL;
return ksys_mmap_pgoff(addr, len, prot, flags, fd, offset >> (PAGE_SHIFT - page_shift_offset));
From: Xianting Tian xianting.tian@linux.alibaba.com
[ Upstream commit 3f1901110a89b0e2e13adb2ac8d1a7102879ea98 ]
Currently, almost all archs (x86, arm64, mips...) support fast call of crash_kexec() when "regs && kexec_should_crash()" is true. But RISC-V not, it can only enter crash system via panic(). However panic() doesn't pass the regs of the real accident scene to crash_kexec(), it caused we can't get accurate backtrace via gdb, $ riscv64-linux-gnu-gdb vmlinux vmcore Reading symbols from vmlinux... [New LWP 95] #0 console_unlock () at kernel/printk/printk.c:2557 2557 if (do_cond_resched) (gdb) bt #0 console_unlock () at kernel/printk/printk.c:2557 #1 0x0000000000000000 in ?? ()
With the patch we can get the accurate backtrace, $ riscv64-linux-gnu-gdb vmlinux vmcore Reading symbols from vmlinux... [New LWP 95] #0 0xffffffe00063a4e0 in test_thread (data=<optimized out>) at drivers/test_crash.c:81 81 *(int *)p = 0xdead; (gdb) (gdb) bt #0 0xffffffe00064d5c0 in test_thread (data=<optimized out>) at drivers/test_crash.c:81 #1 0x0000000000000000 in ?? ()
Test code to produce NULL address dereference in test_crash.c, void *p = NULL; *(int *)p = 0xdead;
Reviewed-by: Guo Ren guoren@kernel.org Tested-by: Xianting Tian xianting.tian@linux.alibaba.com Signed-off-by: Xianting Tian xianting.tian@linux.alibaba.com Link: https://lore.kernel.org/r/20220606082308.2883458-1-xianting.tian@linux.aliba... Signed-off-by: Palmer Dabbelt palmer@rivosinc.com Signed-off-by: Sasha Levin sashal@kernel.org --- arch/riscv/kernel/traps.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/arch/riscv/kernel/traps.c b/arch/riscv/kernel/traps.c index 24a9333dda2c..7c65750508f2 100644 --- a/arch/riscv/kernel/traps.c +++ b/arch/riscv/kernel/traps.c @@ -22,6 +22,7 @@ #include <linux/mm.h> #include <linux/module.h> #include <linux/irq.h> +#include <linux/kexec.h>
#include <asm/processor.h> #include <asm/ptrace.h> @@ -50,6 +51,9 @@ void die(struct pt_regs *regs, const char *str)
ret = notify_die(DIE_OOPS, str, regs, 0, regs->scause, SIGSEGV);
+ if (regs && kexec_should_crash(current)) + crash_kexec(regs); + bust_spinlocks(0); add_taint(TAINT_DIE, LOCKDEP_NOW_UNRELIABLE); spin_unlock_irq(&die_lock);
From: Laurent Dufour ldufour@linux.ibm.com
[ Upstream commit 7c56a8733d0a2a4be2438a7512566e5ce552fccf ]
In some circumstances it may be interesting to reconfigure the watchdog from inside the kernel.
On PowerPC, this may helpful before and after a LPAR migration (LPM) is initiated, because it implies some latencies, watchdog, and especially NMI watchdog is expected to be triggered during this operation. Reconfiguring the watchdog with a factor, would prevent it to happen too frequently during LPM.
Rename lockup_detector_reconfigure() as __lockup_detector_reconfigure() and create a new function lockup_detector_reconfigure() calling __lockup_detector_reconfigure() under the protection of watchdog_mutex.
Signed-off-by: Laurent Dufour ldufour@linux.ibm.com [mpe: Squash in build fix from Laurent, reported by Sachin] Signed-off-by: Michael Ellerman mpe@ellerman.id.au Link: https://lore.kernel.org/r/20220713154729.80789-3-ldufour@linux.ibm.com Signed-off-by: Sasha Levin sashal@kernel.org --- include/linux/nmi.h | 2 ++ kernel/watchdog.c | 21 ++++++++++++++++----- 2 files changed, 18 insertions(+), 5 deletions(-)
diff --git a/include/linux/nmi.h b/include/linux/nmi.h index 9003e29cde46..e972d1ae1ee6 100644 --- a/include/linux/nmi.h +++ b/include/linux/nmi.h @@ -122,6 +122,8 @@ int watchdog_nmi_probe(void); int watchdog_nmi_enable(unsigned int cpu); void watchdog_nmi_disable(unsigned int cpu);
+void lockup_detector_reconfigure(void); + /** * touch_nmi_watchdog - restart NMI watchdog timeout. * diff --git a/kernel/watchdog.c b/kernel/watchdog.c index 6d60701dc636..44096c4f4d60 100644 --- a/kernel/watchdog.c +++ b/kernel/watchdog.c @@ -561,7 +561,7 @@ int lockup_detector_offline_cpu(unsigned int cpu) return 0; }
-static void lockup_detector_reconfigure(void) +static void __lockup_detector_reconfigure(void) { cpus_read_lock(); watchdog_nmi_stop(); @@ -581,6 +581,13 @@ static void lockup_detector_reconfigure(void) __lockup_detector_cleanup(); }
+void lockup_detector_reconfigure(void) +{ + mutex_lock(&watchdog_mutex); + __lockup_detector_reconfigure(); + mutex_unlock(&watchdog_mutex); +} + /* * Create the watchdog thread infrastructure and configure the detector(s). * @@ -601,13 +608,13 @@ static __init void lockup_detector_setup(void) return;
mutex_lock(&watchdog_mutex); - lockup_detector_reconfigure(); + __lockup_detector_reconfigure(); softlockup_initialized = true; mutex_unlock(&watchdog_mutex); }
#else /* CONFIG_SOFTLOCKUP_DETECTOR */ -static void lockup_detector_reconfigure(void) +static void __lockup_detector_reconfigure(void) { cpus_read_lock(); watchdog_nmi_stop(); @@ -615,9 +622,13 @@ static void lockup_detector_reconfigure(void) watchdog_nmi_start(); cpus_read_unlock(); } +void lockup_detector_reconfigure(void) +{ + __lockup_detector_reconfigure(); +} static inline void lockup_detector_setup(void) { - lockup_detector_reconfigure(); + __lockup_detector_reconfigure(); } #endif /* !CONFIG_SOFTLOCKUP_DETECTOR */
@@ -657,7 +668,7 @@ static void proc_watchdog_update(void) { /* Remove impossible cpus to keep sysctl output clean. */ cpumask_and(&watchdog_cpumask, &watchdog_cpumask, cpu_possible_mask); - lockup_detector_reconfigure(); + __lockup_detector_reconfigure(); }
/*
From: Takashi Iwai tiwai@suse.de
[ Upstream commit ef34a0ae7a2654bc9e58675e36898217fb2799d8 ]
Currently the call of kill_fasync() from an interrupt handler might lead to potential spin deadlocks, as spotted by syzkaller. Unfortunately, it's not so trivial to fix this lock chain as it's involved with the tasklist_lock that is touched in allover places.
As a temporary workaround, this patch provides the way to defer the async signal notification in a work. The new helper functions, snd_fasync_helper() and snd_kill_faync() are replacements for fasync_helper() and kill_fasync(), respectively. In addition, snd_fasync_free() needs to be called at the destructor of the relevant file object.
Link: https://lore.kernel.org/r/20220728125945.29533-2-tiwai@suse.de Signed-off-by: Takashi Iwai tiwai@suse.de Signed-off-by: Sasha Levin sashal@kernel.org --- include/sound/core.h | 8 ++++ sound/core/misc.c | 94 ++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 102 insertions(+)
diff --git a/include/sound/core.h b/include/sound/core.h index 36a5934cf4b1..b5a8cc4d02cc 100644 --- a/include/sound/core.h +++ b/include/sound/core.h @@ -444,4 +444,12 @@ snd_pci_quirk_lookup_id(u16 vendor, u16 device, } #endif
+/* async signal helpers */ +struct snd_fasync; + +int snd_fasync_helper(int fd, struct file *file, int on, + struct snd_fasync **fasyncp); +void snd_kill_fasync(struct snd_fasync *fasync, int signal, int poll); +void snd_fasync_free(struct snd_fasync *fasync); + #endif /* __SOUND_CORE_H */ diff --git a/sound/core/misc.c b/sound/core/misc.c index 0f818d593c9e..d100feba26b5 100644 --- a/sound/core/misc.c +++ b/sound/core/misc.c @@ -25,6 +25,7 @@ #include <linux/time.h> #include <linux/slab.h> #include <linux/ioport.h> +#include <linux/fs.h> #include <sound/core.h>
#ifdef CONFIG_SND_DEBUG @@ -160,3 +161,96 @@ snd_pci_quirk_lookup(struct pci_dev *pci, const struct snd_pci_quirk *list) } EXPORT_SYMBOL(snd_pci_quirk_lookup); #endif + +/* + * Deferred async signal helpers + * + * Below are a few helper functions to wrap the async signal handling + * in the deferred work. The main purpose is to avoid the messy deadlock + * around tasklist_lock and co at the kill_fasync() invocation. + * fasync_helper() and kill_fasync() are replaced with snd_fasync_helper() + * and snd_kill_fasync(), respectively. In addition, snd_fasync_free() has + * to be called at releasing the relevant file object. + */ +struct snd_fasync { + struct fasync_struct *fasync; + int signal; + int poll; + int on; + struct list_head list; +}; + +static DEFINE_SPINLOCK(snd_fasync_lock); +static LIST_HEAD(snd_fasync_list); + +static void snd_fasync_work_fn(struct work_struct *work) +{ + struct snd_fasync *fasync; + + spin_lock_irq(&snd_fasync_lock); + while (!list_empty(&snd_fasync_list)) { + fasync = list_first_entry(&snd_fasync_list, struct snd_fasync, list); + list_del_init(&fasync->list); + spin_unlock_irq(&snd_fasync_lock); + if (fasync->on) + kill_fasync(&fasync->fasync, fasync->signal, fasync->poll); + spin_lock_irq(&snd_fasync_lock); + } + spin_unlock_irq(&snd_fasync_lock); +} + +static DECLARE_WORK(snd_fasync_work, snd_fasync_work_fn); + +int snd_fasync_helper(int fd, struct file *file, int on, + struct snd_fasync **fasyncp) +{ + struct snd_fasync *fasync = NULL; + + if (on) { + fasync = kzalloc(sizeof(*fasync), GFP_KERNEL); + if (!fasync) + return -ENOMEM; + INIT_LIST_HEAD(&fasync->list); + } + + spin_lock_irq(&snd_fasync_lock); + if (*fasyncp) { + kfree(fasync); + fasync = *fasyncp; + } else { + if (!fasync) { + spin_unlock_irq(&snd_fasync_lock); + return 0; + } + *fasyncp = fasync; + } + fasync->on = on; + spin_unlock_irq(&snd_fasync_lock); + return fasync_helper(fd, file, on, &fasync->fasync); +} +EXPORT_SYMBOL_GPL(snd_fasync_helper); + +void snd_kill_fasync(struct snd_fasync *fasync, int signal, int poll) +{ + unsigned long flags; + + if (!fasync || !fasync->on) + return; + spin_lock_irqsave(&snd_fasync_lock, flags); + fasync->signal = signal; + fasync->poll = poll; + list_move(&fasync->list, &snd_fasync_list); + schedule_work(&snd_fasync_work); + spin_unlock_irqrestore(&snd_fasync_lock, flags); +} +EXPORT_SYMBOL_GPL(snd_kill_fasync); + +void snd_fasync_free(struct snd_fasync *fasync) +{ + if (!fasync) + return; + fasync->on = 0; + flush_work(&snd_fasync_work); + kfree(fasync); +} +EXPORT_SYMBOL_GPL(snd_fasync_free);
From: Takashi Iwai tiwai@suse.de
[ Upstream commit 95cc637c1afd83fb7dd3d7c8a53710488f4caf9c ]
For avoiding the potential deadlock via kill_fasync() call, use the new fasync helpers to defer the invocation from PCI API. Note that it's merely a workaround.
Reported-by: syzbot+1ee0910eca9c94f71f25@syzkaller.appspotmail.com Reported-by: syzbot+49b10793b867871ee26f@syzkaller.appspotmail.com Reported-by: syzbot+8285e973a41b5aa68902@syzkaller.appspotmail.com Link: https://lore.kernel.org/r/20220728125945.29533-3-tiwai@suse.de Signed-off-by: Takashi Iwai tiwai@suse.de Signed-off-by: Sasha Levin sashal@kernel.org --- sound/core/timer.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-)
diff --git a/sound/core/timer.c b/sound/core/timer.c index 4920ec4f4594..f0e8b98f346e 100644 --- a/sound/core/timer.c +++ b/sound/core/timer.c @@ -75,7 +75,7 @@ struct snd_timer_user { unsigned int filter; struct timespec tstamp; /* trigger tstamp */ wait_queue_head_t qchange_sleep; - struct fasync_struct *fasync; + struct snd_fasync *fasync; struct mutex ioctl_lock; };
@@ -1306,7 +1306,7 @@ static void snd_timer_user_interrupt(struct snd_timer_instance *timeri, } __wake: spin_unlock(&tu->qlock); - kill_fasync(&tu->fasync, SIGIO, POLL_IN); + snd_kill_fasync(tu->fasync, SIGIO, POLL_IN); wake_up(&tu->qchange_sleep); }
@@ -1343,7 +1343,7 @@ static void snd_timer_user_ccallback(struct snd_timer_instance *timeri, spin_lock_irqsave(&tu->qlock, flags); snd_timer_user_append_to_tqueue(tu, &r1); spin_unlock_irqrestore(&tu->qlock, flags); - kill_fasync(&tu->fasync, SIGIO, POLL_IN); + snd_kill_fasync(tu->fasync, SIGIO, POLL_IN); wake_up(&tu->qchange_sleep); }
@@ -1410,7 +1410,7 @@ static void snd_timer_user_tinterrupt(struct snd_timer_instance *timeri, spin_unlock(&tu->qlock); if (append == 0) return; - kill_fasync(&tu->fasync, SIGIO, POLL_IN); + snd_kill_fasync(tu->fasync, SIGIO, POLL_IN); wake_up(&tu->qchange_sleep); }
@@ -1476,6 +1476,7 @@ static int snd_timer_user_release(struct inode *inode, struct file *file) if (tu->timeri) snd_timer_close(tu->timeri); mutex_unlock(&tu->ioctl_lock); + snd_fasync_free(tu->fasync); kfree(tu->queue); kfree(tu->tqueue); kfree(tu); @@ -2027,7 +2028,7 @@ static int snd_timer_user_fasync(int fd, struct file * file, int on) struct snd_timer_user *tu;
tu = file->private_data; - return fasync_helper(fd, file, on, &tu->fasync); + return snd_fasync_helper(fd, file, on, &tu->fasync); }
static ssize_t snd_timer_user_read(struct file *file, char __user *buffer,
From: Chao Yu chao.yu@oppo.com
[ Upstream commit 141170b759e03958f296033bb7001be62d1d363b ]
As Dipanjan Das mail.dipanjan.das@gmail.com reported, syzkaller found a f2fs bug as below:
RIP: 0010:f2fs_new_node_page+0x19ac/0x1fc0 fs/f2fs/node.c:1295 Call Trace: write_all_xattrs fs/f2fs/xattr.c:487 [inline] __f2fs_setxattr+0xe76/0x2e10 fs/f2fs/xattr.c:743 f2fs_setxattr+0x233/0xab0 fs/f2fs/xattr.c:790 f2fs_xattr_generic_set+0x133/0x170 fs/f2fs/xattr.c:86 __vfs_setxattr+0x115/0x180 fs/xattr.c:182 __vfs_setxattr_noperm+0x125/0x5f0 fs/xattr.c:216 __vfs_setxattr_locked+0x1cf/0x260 fs/xattr.c:277 vfs_setxattr+0x13f/0x330 fs/xattr.c:303 setxattr+0x146/0x160 fs/xattr.c:611 path_setxattr+0x1a7/0x1d0 fs/xattr.c:630 __do_sys_lsetxattr fs/xattr.c:653 [inline] __se_sys_lsetxattr fs/xattr.c:649 [inline] __x64_sys_lsetxattr+0xbd/0x150 fs/xattr.c:649 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x46/0xb0
NAT entry and nat bitmap can be inconsistent, e.g. one nid is free in nat bitmap, and blkaddr in its NAT entry is not NULL_ADDR, it may trigger BUG_ON() in f2fs_new_node_page(), fix it.
Reported-by: Dipanjan Das mail.dipanjan.das@gmail.com Signed-off-by: Chao Yu chao.yu@oppo.com Signed-off-by: Jaegeuk Kim jaegeuk@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- fs/f2fs/node.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c index ff3f97ba1a55..2c28f488ac2f 100644 --- a/fs/f2fs/node.c +++ b/fs/f2fs/node.c @@ -1232,7 +1232,11 @@ struct page *f2fs_new_node_page(struct dnode_of_data *dn, unsigned int ofs) dec_valid_node_count(sbi, dn->inode, !ofs); goto fail; } - f2fs_bug_on(sbi, new_ni.blk_addr != NULL_ADDR); + if (unlikely(new_ni.blk_addr != NULL_ADDR)) { + err = -EFSCORRUPTED; + set_sbi_flag(sbi, SBI_NEED_FSCK); + goto fail; + } #endif new_ni.nid = dn->nid; new_ni.ino = dn->inode->i_ino;
From: Steve French stfrench@microsoft.com
[ Upstream commit 5fa2cffba0b82336a2244d941322eb1627ff787b ]
Coverity complains about assigning a pointer based on value length before checking that value length goes beyond the end of the SMB. Although this is even more unlikely as value length is a single byte, and the pointer is not dereferenced until laterm, it is clearer to check the lengths first.
Addresses-Coverity: 1467704 ("Speculative execution data leak") Reviewed-by: Ronnie Sahlberg lsahlber@redhat.com Signed-off-by: Steve French stfrench@microsoft.com Signed-off-by: Sasha Levin sashal@kernel.org --- fs/cifs/smb2ops.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c index cc34a28aecbc..f906984eb25b 100644 --- a/fs/cifs/smb2ops.c +++ b/fs/cifs/smb2ops.c @@ -762,9 +762,7 @@ move_smb2_ea_to_cifs(char *dst, size_t dst_size, size_t name_len, value_len, user_name_len;
while (src_size > 0) { - name = &src->ea_data[0]; name_len = (size_t)src->ea_name_length; - value = &src->ea_data[src->ea_name_length + 1]; value_len = (size_t)le16_to_cpu(src->ea_value_length);
if (name_len == 0) { @@ -777,6 +775,9 @@ move_smb2_ea_to_cifs(char *dst, size_t dst_size, goto out; }
+ name = &src->ea_data[0]; + value = &src->ea_data[src->ea_name_length + 1]; + if (ea_name) { if (ea_name_len == name_len && memcmp(ea_name, name, name_len) == 0) {
From: Zhouyi Zhou zhouzhouyi@gmail.com
[ Upstream commit ca829e05d3d4f728810cc5e4b468d9ebc7745eb3 ]
On 64-bit, calling jump_label_init() in setup_feature_keys() is too late because static keys may be used in subroutines of parse_early_param() which is again subroutine of early_init_devtree().
For example booting with "threadirqs":
static_key_enable_cpuslocked(): static key '0xc000000002953260' used before call to jump_label_init() WARNING: CPU: 0 PID: 0 at kernel/jump_label.c:166 static_key_enable_cpuslocked+0xfc/0x120 ... NIP static_key_enable_cpuslocked+0xfc/0x120 LR static_key_enable_cpuslocked+0xf8/0x120 Call Trace: static_key_enable_cpuslocked+0xf8/0x120 (unreliable) static_key_enable+0x30/0x50 setup_forced_irqthreads+0x28/0x40 do_early_param+0xa0/0x108 parse_args+0x290/0x4e0 parse_early_options+0x48/0x5c parse_early_param+0x58/0x84 early_init_devtree+0xd4/0x518 early_setup+0xb4/0x214
So call jump_label_init() just before parse_early_param() in early_init_devtree().
Suggested-by: Michael Ellerman mpe@ellerman.id.au Signed-off-by: Zhouyi Zhou zhouzhouyi@gmail.com [mpe: Add call trace to change log and minor wording edits.] Signed-off-by: Michael Ellerman mpe@ellerman.id.au Link: https://lore.kernel.org/r/20220726015747.11754-1-zhouzhouyi@gmail.com Signed-off-by: Sasha Levin sashal@kernel.org --- arch/powerpc/kernel/prom.c | 7 +++++++ 1 file changed, 7 insertions(+)
diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c index f8c49e5d4bd3..c57aeb9f031c 100644 --- a/arch/powerpc/kernel/prom.c +++ b/arch/powerpc/kernel/prom.c @@ -737,6 +737,13 @@ void __init early_init_devtree(void *params) of_scan_flat_dt(early_init_dt_scan_root, NULL); of_scan_flat_dt(early_init_dt_scan_memory_ppc, NULL);
+ /* + * As generic code authors expect to be able to use static keys + * in early_param() handlers, we initialize the static keys just + * before parsing early params (it's fine to call jump_label_init() + * more than once). + */ + jump_label_init(); parse_early_param();
/* make sure we've parsed cmdline for mem= before this */
From: Zheyu Ma zheyuma97@gmail.com
[ Upstream commit 40bf722f8064f50200b8c4f8946cd625b441dda9 ]
Since the user can control the arguments of the ioctl() from the user space, under special arguments that may result in a divide-by-zero bug.
If the user provides an improper 'pixclock' value that makes the argumet of i740_calc_vclk() less than 'I740_RFREQ_FIX', it will cause a divide-by-zero bug in: drivers/video/fbdev/i740fb.c:353 p_best = min(15, ilog2(I740_MAX_VCO_FREQ / (freq / I740_RFREQ_FIX)));
The following log can reveal it:
divide error: 0000 [#1] PREEMPT SMP KASAN PTI RIP: 0010:i740_calc_vclk drivers/video/fbdev/i740fb.c:353 [inline] RIP: 0010:i740fb_decode_var drivers/video/fbdev/i740fb.c:646 [inline] RIP: 0010:i740fb_set_par+0x163f/0x3b70 drivers/video/fbdev/i740fb.c:742 Call Trace: fb_set_var+0x604/0xeb0 drivers/video/fbdev/core/fbmem.c:1034 do_fb_ioctl+0x234/0x670 drivers/video/fbdev/core/fbmem.c:1110 fb_ioctl+0xdd/0x130 drivers/video/fbdev/core/fbmem.c:1189
Fix this by checking the argument of i740_calc_vclk() first.
Signed-off-by: Zheyu Ma zheyuma97@gmail.com Signed-off-by: Helge Deller deller@gmx.de Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/video/fbdev/i740fb.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/drivers/video/fbdev/i740fb.c b/drivers/video/fbdev/i740fb.c index f6d7b04d6dff..bdbafff4529f 100644 --- a/drivers/video/fbdev/i740fb.c +++ b/drivers/video/fbdev/i740fb.c @@ -399,7 +399,7 @@ static int i740fb_decode_var(const struct fb_var_screeninfo *var, u32 xres, right, hslen, left, xtotal; u32 yres, lower, vslen, upper, ytotal; u32 vxres, xoffset, vyres, yoffset; - u32 bpp, base, dacspeed24, mem; + u32 bpp, base, dacspeed24, mem, freq; u8 r7; int i;
@@ -642,7 +642,12 @@ static int i740fb_decode_var(const struct fb_var_screeninfo *var, par->atc[VGA_ATC_OVERSCAN] = 0;
/* Calculate VCLK that most closely matches the requested dot clock */ - i740_calc_vclk((((u32)1e9) / var->pixclock) * (u32)(1e3), par); + freq = (((u32)1e9) / var->pixclock) * (u32)(1e3); + if (freq < I740_RFREQ_FIX) { + fb_dbg(info, "invalid pixclock\n"); + freq = I740_RFREQ_FIX; + } + i740_calc_vclk(freq, par);
/* Since we program the clocks ourselves, always use VCLK2. */ par->misc |= 0x0C;
From: Nathan Chancellor nathan@kernel.org
[ Upstream commit 74de14fe05dd6b151d73cb0c73c8ec874cbdcde6 ]
When CONFIG_XPA is enabled, Clang warns:
arch/mips/mm/tlbex.c:629:24: error: converting the result of '<<' to a boolean; did you mean '(1 << _PAGE_NO_EXEC_SHIFT) != 0'? [-Werror,-Wint-in-bool-context] if (cpu_has_rixi && !!_PAGE_NO_EXEC) { ^ arch/mips/include/asm/pgtable-bits.h:174:28: note: expanded from macro '_PAGE_NO_EXEC' # define _PAGE_NO_EXEC (1 << _PAGE_NO_EXEC_SHIFT) ^ arch/mips/mm/tlbex.c:2568:24: error: converting the result of '<<' to a boolean; did you mean '(1 << _PAGE_NO_EXEC_SHIFT) != 0'? [-Werror,-Wint-in-bool-context] if (!cpu_has_rixi || !_PAGE_NO_EXEC) { ^ arch/mips/include/asm/pgtable-bits.h:174:28: note: expanded from macro '_PAGE_NO_EXEC' # define _PAGE_NO_EXEC (1 << _PAGE_NO_EXEC_SHIFT) ^ 2 errors generated.
_PAGE_NO_EXEC can be '0' or '1 << _PAGE_NO_EXEC_SHIFT' depending on the build and runtime configuration, which is what the negation operators are trying to convey. To silence the warning, explicitly compare against 0 so the result of the '<<' operator is not implicitly converted to a boolean.
According to its documentation, GCC enables -Wint-in-bool-context with -Wall but this warning is not visible when building the same configuration with GCC. It appears GCC only warns when compiling C++, not C, although the documentation makes no note of this: https://godbolt.org/z/x39q3brxf
Reported-by: Sudip Mukherjee (Codethink) sudipm.mukherjee@gmail.com Signed-off-by: Nathan Chancellor nathan@kernel.org Signed-off-by: Thomas Bogendoerfer tsbogend@alpha.franken.de Signed-off-by: Sasha Levin sashal@kernel.org --- arch/mips/mm/tlbex.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/mips/mm/tlbex.c b/arch/mips/mm/tlbex.c index 620abc968624..a97b3e5a1c00 100644 --- a/arch/mips/mm/tlbex.c +++ b/arch/mips/mm/tlbex.c @@ -630,7 +630,7 @@ static __maybe_unused void build_convert_pte_to_entrylo(u32 **p, return; }
- if (cpu_has_rixi && !!_PAGE_NO_EXEC) { + if (cpu_has_rixi && _PAGE_NO_EXEC != 0) { if (fill_includes_sw_bits) { UASM_i_ROTR(p, reg, reg, ilog2(_PAGE_GLOBAL)); } else { @@ -2559,7 +2559,7 @@ static void check_pabits(void) unsigned long entry; unsigned pabits, fillbits;
- if (!cpu_has_rixi || !_PAGE_NO_EXEC) { + if (!cpu_has_rixi || _PAGE_NO_EXEC == 0) { /* * We'll only be making use of the fact that we can rotate bits * into the fill if the CPU supports RIXI, so don't bother
From: Jens Wiklander jens.wiklander@linaro.org
commit 573ae4f13f630d6660008f1974c0a8a29c30e18a upstream.
With special lengths supplied by user space, register_shm_helper() has an integer overflow when calculating the number of pages covered by a supplied user space memory region.
This causes internal_get_user_pages_fast() a helper function of pin_user_pages_fast() to do a NULL pointer dereference:
Unable to handle kernel NULL pointer dereference at virtual address 0000000000000010 Modules linked in: CPU: 1 PID: 173 Comm: optee_example_a Not tainted 5.19.0 #11 Hardware name: QEMU QEMU Virtual Machine, BIOS 0.0.0 02/06/2015 pc : internal_get_user_pages_fast+0x474/0xa80 Call trace: internal_get_user_pages_fast+0x474/0xa80 pin_user_pages_fast+0x24/0x4c register_shm_helper+0x194/0x330 tee_shm_register_user_buf+0x78/0x120 tee_ioctl+0xd0/0x11a0 __arm64_sys_ioctl+0xa8/0xec invoke_syscall+0x48/0x114
Fix this by adding an an explicit call to access_ok() in tee_shm_register_user_buf() to catch an invalid user space address early.
Fixes: 033ddf12bcf5 ("tee: add register user memory") Cc: stable@vger.kernel.org Reported-by: Nimish Mishra neelam.nimish@gmail.com Reported-by: Anirban Chakraborty ch.anirban00727@gmail.com Reported-by: Debdeep Mukhopadhyay debdeep.mukhopadhyay@gmail.com Suggested-by: Jerome Forissier jerome.forissier@linaro.org Signed-off-by: Jens Wiklander jens.wiklander@linaro.org Signed-off-by: Linus Torvalds torvalds@linux-foundation.org [JW: backport to stable-4.19 + update commit message] Signed-off-by: Jens Wiklander jens.wiklander@linaro.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/tee/tee_core.c | 4 ++++ 1 file changed, 4 insertions(+)
--- a/drivers/tee/tee_core.c +++ b/drivers/tee/tee_core.c @@ -175,6 +175,10 @@ tee_ioctl_shm_register(struct tee_contex if (data.flags) return -EINVAL;
+ if (!access_ok(VERIFY_WRITE, (void __user *)(unsigned long)data.addr, + data.length)) + return -EFAULT; + shm = tee_shm_register(ctx, data.addr, data.length, TEE_SHM_DMA_BUF | TEE_SHM_USER_MAPPED); if (IS_ERR(shm))
From: Steven Rostedt (Google) rostedt@goodmis.org
commit ab8384442ee512fc0fc72deeb036110843d0e7ff upstream.
Both $comm and $COMM can be used to get current->comm in eprobes and the filtering and histogram logic. Make kprobes and uprobes consistent in this regard and allow both $comm and $COMM as well. Currently kprobes and uprobes only handle $comm, which is inconsistent with the other utilities, and can be confusing to users.
Link: https://lkml.kernel.org/r/20220820134401.317014913@goodmis.org Link: https://lore.kernel.org/all/20220820220442.776e1ddaf8836e82edb34d01@kernel.o...
Cc: stable@vger.kernel.org Cc: Ingo Molnar mingo@kernel.org Cc: Andrew Morton akpm@linux-foundation.org Cc: Tzvetomir Stoyanov tz.stoyanov@gmail.com Cc: Tom Zanussi zanussi@kernel.org Fixes: 533059281ee5 ("tracing: probeevent: Introduce new argument fetching code") Suggested-by: Masami Hiramatsu (Google) mhiramat@kernel.org Acked-by: Masami Hiramatsu (Google) mhiramat@kernel.org Signed-off-by: Steven Rostedt (Google) rostedt@goodmis.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- kernel/trace/trace_probe.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
--- a/kernel/trace/trace_probe.c +++ b/kernel/trace/trace_probe.c @@ -361,7 +361,7 @@ static int parse_probe_vars(char *arg, c } } else ret = -EINVAL; - } else if (strcmp(arg, "comm") == 0) { + } else if (strcmp(arg, "comm") == 0 || strcmp(arg, "COMM") == 0) { if (strcmp(t->name, "string") != 0 && strcmp(t->name, "string_size") != 0) return -EINVAL; @@ -544,7 +544,7 @@ int traceprobe_parse_probe_arg(char *arg * The default type of $comm should be "string", and it can't be * dereferenced. */ - if (!t && strcmp(arg, "$comm") == 0) + if (!t && (strcmp(arg, "$comm") == 0 || strcmp(arg, "$COMM") == 0)) t = "string"; parg->type = find_fetch_type(t, ftbl); if (!parg->type) {
From: Qu Wenruo wqu@suse.com
commit bd8f7e627703ca5707833d623efcd43f104c7b3f upstream.
If we have only 8K partial write at the beginning of a full RAID56 stripe, we will write the following contents:
0 8K 32K 64K Disk 1 (data): |XX| | | Disk 2 (data): | | | Disk 3 (parity): |XXXXXXXXXXXXXXX|XXXXXXXXXXXXXXX|
|X| means the sector will be written back to disk.
Note that, although we won't write any sectors from disk 2, but we will write the full 64KiB of parity to disk.
This behavior is fine for now, but not for the future (especially for RAID56J, as we waste quite some space to journal the unused parity stripes).
So here we will also utilize the btrfs_raid_bio::dbitmap, anytime we queue a higher level bio into an rbio, we will update rbio::dbitmap to indicate which vertical stripes we need to writeback.
And at finish_rmw(), we also check dbitmap to see if we need to write any sector in the vertical stripe.
So after the patch, above example will only lead to the following writeback pattern:
0 8K 32K 64K Disk 1 (data): |XX| | | Disk 2 (data): | | | Disk 3 (parity): |XX| | |
Acked-by: David Sterba dsterba@suse.com Signed-off-by: Qu Wenruo wqu@suse.com Signed-off-by: David Sterba dsterba@suse.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- fs/btrfs/raid56.c | 55 ++++++++++++++++++++++++++++++++++++++++++++++++++---- 1 file changed, 51 insertions(+), 4 deletions(-)
--- a/fs/btrfs/raid56.c +++ b/fs/btrfs/raid56.c @@ -318,6 +318,9 @@ static void merge_rbio(struct btrfs_raid { bio_list_merge(&dest->bio_list, &victim->bio_list); dest->bio_list_bytes += victim->bio_list_bytes; + /* Also inherit the bitmaps from @victim. */ + bitmap_or(dest->dbitmap, victim->dbitmap, dest->dbitmap, + dest->stripe_npages); dest->generic_bio_cnt += victim->generic_bio_cnt; bio_list_init(&victim->bio_list); } @@ -862,6 +865,12 @@ static void rbio_orig_end_io(struct btrf
if (rbio->generic_bio_cnt) btrfs_bio_counter_sub(rbio->fs_info, rbio->generic_bio_cnt); + /* + * Clear the data bitmap, as the rbio may be cached for later usage. + * do this before before unlock_stripe() so there will be no new bio + * for this bio. + */ + bitmap_clear(rbio->dbitmap, 0, rbio->stripe_npages);
/* * At this moment, rbio->bio_list is empty, however since rbio does not @@ -1196,6 +1205,9 @@ static noinline void finish_rmw(struct b else BUG();
+ /* We should have at least one data sector. */ + ASSERT(bitmap_weight(rbio->dbitmap, rbio->stripe_npages)); + /* at this point we either have a full stripe, * or we've read the full stripe from the drive. * recalculate the parity and write the new results. @@ -1269,6 +1281,11 @@ static noinline void finish_rmw(struct b for (stripe = 0; stripe < rbio->real_stripes; stripe++) { for (pagenr = 0; pagenr < rbio->stripe_npages; pagenr++) { struct page *page; + + /* This vertical stripe has no data, skip it. */ + if (!test_bit(pagenr, rbio->dbitmap)) + continue; + if (stripe < rbio->nr_data) { page = page_in_rbio(rbio, stripe, pagenr, 1); if (!page) @@ -1293,6 +1310,11 @@ static noinline void finish_rmw(struct b
for (pagenr = 0; pagenr < rbio->stripe_npages; pagenr++) { struct page *page; + + /* This vertical stripe has no data, skip it. */ + if (!test_bit(pagenr, rbio->dbitmap)) + continue; + if (stripe < rbio->nr_data) { page = page_in_rbio(rbio, stripe, pagenr, 1); if (!page) @@ -1733,6 +1755,33 @@ static void btrfs_raid_unplug(struct blk run_plug(plug); }
+/* Add the original bio into rbio->bio_list, and update rbio::dbitmap. */ +static void rbio_add_bio(struct btrfs_raid_bio *rbio, struct bio *orig_bio) +{ + const struct btrfs_fs_info *fs_info = rbio->fs_info; + const u64 orig_logical = orig_bio->bi_iter.bi_sector << SECTOR_SHIFT; + const u64 full_stripe_start = rbio->bbio->raid_map[0]; + const u32 orig_len = orig_bio->bi_iter.bi_size; + const u32 sectorsize = fs_info->sectorsize; + u64 cur_logical; + + ASSERT(orig_logical >= full_stripe_start && + orig_logical + orig_len <= full_stripe_start + + rbio->nr_data * rbio->stripe_len); + + bio_list_add(&rbio->bio_list, orig_bio); + rbio->bio_list_bytes += orig_bio->bi_iter.bi_size; + + /* Update the dbitmap. */ + for (cur_logical = orig_logical; cur_logical < orig_logical + orig_len; + cur_logical += sectorsize) { + int bit = ((u32)(cur_logical - full_stripe_start) >> + PAGE_SHIFT) % rbio->stripe_npages; + + set_bit(bit, rbio->dbitmap); + } +} + /* * our main entry point for writes from the rest of the FS. */ @@ -1749,9 +1798,8 @@ int raid56_parity_write(struct btrfs_fs_ btrfs_put_bbio(bbio); return PTR_ERR(rbio); } - bio_list_add(&rbio->bio_list, bio); - rbio->bio_list_bytes = bio->bi_iter.bi_size; rbio->operation = BTRFS_RBIO_WRITE; + rbio_add_bio(rbio, bio);
btrfs_bio_counter_inc_noblocked(fs_info); rbio->generic_bio_cnt = 1; @@ -2155,8 +2203,7 @@ int raid56_parity_recover(struct btrfs_f }
rbio->operation = BTRFS_RBIO_READ_REBUILD; - bio_list_add(&rbio->bio_list, bio); - rbio->bio_list_bytes = bio->bi_iter.bi_size; + rbio_add_bio(rbio, bio);
rbio->faila = find_logical_bio_stripe(rbio, bio); if (rbio->faila == -1) {
From: Qu Wenruo wqu@suse.com
commit f6065f8edeb25f4a9dfe0b446030ad995a84a088 upstream.
[BUG] There is a small workload which will always fail with recent kernel: (A simplified version from btrfs/125 test case)
mkfs.btrfs -f -m raid5 -d raid5 -b 1G $dev1 $dev2 $dev3 mount $dev1 $mnt xfs_io -f -c "pwrite -S 0xee 0 1M" $mnt/file1 sync umount $mnt btrfs dev scan -u $dev3 mount -o degraded $dev1 $mnt xfs_io -f -c "pwrite -S 0xff 0 128M" $mnt/file2 umount $mnt btrfs dev scan mount $dev1 $mnt btrfs balance start --full-balance $mnt umount $mnt
The failure is always failed to read some tree blocks:
BTRFS info (device dm-4): relocating block group 217710592 flags data|raid5 BTRFS error (device dm-4): parent transid verify failed on 38993920 wanted 9 found 7 BTRFS error (device dm-4): parent transid verify failed on 38993920 wanted 9 found 7 ...
[CAUSE] With the recently added debug output, we can see all RAID56 operations related to full stripe 38928384:
56.1183: raid56_read_partial: full_stripe=38928384 devid=2 type=DATA1 offset=0 opf=0x0 physical=9502720 len=65536 56.1185: raid56_read_partial: full_stripe=38928384 devid=3 type=DATA2 offset=16384 opf=0x0 physical=9519104 len=16384 56.1185: raid56_read_partial: full_stripe=38928384 devid=3 type=DATA2 offset=49152 opf=0x0 physical=9551872 len=16384 56.1187: raid56_write_stripe: full_stripe=38928384 devid=3 type=DATA2 offset=0 opf=0x1 physical=9502720 len=16384 56.1188: raid56_write_stripe: full_stripe=38928384 devid=3 type=DATA2 offset=32768 opf=0x1 physical=9535488 len=16384 56.1188: raid56_write_stripe: full_stripe=38928384 devid=1 type=PQ1 offset=0 opf=0x1 physical=30474240 len=16384 56.1189: raid56_write_stripe: full_stripe=38928384 devid=1 type=PQ1 offset=32768 opf=0x1 physical=30507008 len=16384 56.1218: raid56_write_stripe: full_stripe=38928384 devid=3 type=DATA2 offset=49152 opf=0x1 physical=9551872 len=16384 56.1219: raid56_write_stripe: full_stripe=38928384 devid=1 type=PQ1 offset=49152 opf=0x1 physical=30523392 len=16384 56.2721: raid56_parity_recover: full stripe=38928384 eb=39010304 mirror=2 56.2723: raid56_parity_recover: full stripe=38928384 eb=39010304 mirror=2 56.2724: raid56_parity_recover: full stripe=38928384 eb=39010304 mirror=2
Before we enter raid56_parity_recover(), we have triggered some metadata write for the full stripe 38928384, this leads to us to read all the sectors from disk.
Furthermore, btrfs raid56 write will cache its calculated P/Q sectors to avoid unnecessary read.
This means, for that full stripe, after any partial write, we will have stale data, along with P/Q calculated using that stale data.
Thankfully due to patch "btrfs: only write the sectors in the vertical stripe which has data stripes" we haven't submitted all the corrupted P/Q to disk.
When we really need to recover certain range, aka in raid56_parity_recover(), we will use the cached rbio, along with its cached sectors (the full stripe is all cached).
This explains why we have no event raid56_scrub_read_recover() triggered.
Since we have the cached P/Q which is calculated using the stale data, the recovered one will just be stale.
In our particular test case, it will always return the same incorrect metadata, thus causing the same error message "parent transid verify failed on 39010304 wanted 9 found 7" again and again.
[BTRFS DESTRUCTIVE RMW PROBLEM]
Test case btrfs/125 (and above workload) always has its trouble with the destructive read-modify-write (RMW) cycle:
0 32K 64K Data1: | Good | Good | Data2: | Bad | Bad | Parity: | Good | Good |
In above case, if we trigger any write into Data1, we will use the bad data in Data2 to re-generate parity, killing the only chance to recovery Data2, thus Data2 is lost forever.
This destructive RMW cycle is not specific to btrfs RAID56, but there are some btrfs specific behaviors making the case even worse:
- Btrfs will cache sectors for unrelated vertical stripes.
In above example, if we're only writing into 0~32K range, btrfs will still read data range (32K ~ 64K) of Data1, and (64K~128K) of Data2. This behavior is to cache sectors for later update.
Incidentally commit d4e28d9b5f04 ("btrfs: raid56: make steal_rbio() subpage compatible") has a bug which makes RAID56 to never trust the cached sectors, thus slightly improve the situation for recovery.
Unfortunately, follow up fix "btrfs: update stripe_sectors::uptodate in steal_rbio" will revert the behavior back to the old one.
- Btrfs raid56 partial write will update all P/Q sectors and cache them
This means, even if data at (64K ~ 96K) of Data2 is free space, and only (96K ~ 128K) of Data2 is really stale data. And we write into that (96K ~ 128K), we will update all the parity sectors for the full stripe.
This unnecessary behavior will completely kill the chance of recovery.
Thankfully, an unrelated optimization "btrfs: only write the sectors in the vertical stripe which has data stripes" will prevent submitting the write bio for untouched vertical sectors.
That optimization will keep the on-disk P/Q untouched for a chance for later recovery.
[FIX] Although we have no good way to completely fix the destructive RMW (unless we go full scrub for each partial write), we can still limit the damage.
With patch "btrfs: only write the sectors in the vertical stripe which has data stripes" now we won't really submit the P/Q of unrelated vertical stripes, so the on-disk P/Q should still be fine.
Now we really need to do is just drop all the cached sectors when doing recovery.
By this, we have a chance to read the original P/Q from disk, and have a chance to recover the stale data, while still keep the cache to speed up regular write path.
In fact, just dropping all the cache for recovery path is good enough to allow the test case btrfs/125 along with the small script to pass reliably.
The lack of metadata write after the degraded mount, and forced metadata COW is saving us this time.
So this patch will fix the behavior by not trust any cache in __raid56_parity_recover(), to solve the problem while still keep the cache useful.
But please note that this test pass DOES NOT mean we have solved the destructive RMW problem, we just do better damage control a little better.
Related patches:
- btrfs: only write the sectors in the vertical stripe - d4e28d9b5f04 ("btrfs: raid56: make steal_rbio() subpage compatible") - btrfs: update stripe_sectors::uptodate in steal_rbio
Acked-by: David Sterba dsterba@suse.com Signed-off-by: Qu Wenruo wqu@suse.com Signed-off-by: David Sterba dsterba@suse.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- fs/btrfs/raid56.c | 19 ++++++------------- 1 file changed, 6 insertions(+), 13 deletions(-)
--- a/fs/btrfs/raid56.c +++ b/fs/btrfs/raid56.c @@ -2101,9 +2101,12 @@ static int __raid56_parity_recover(struc atomic_set(&rbio->error, 0);
/* - * read everything that hasn't failed. Thanks to the - * stripe cache, it is possible that some or all of these - * pages are going to be uptodate. + * Read everything that hasn't failed. However this time we will + * not trust any cached sector. + * As we may read out some stale data but higher layer is not reading + * that stale part. + * + * So here we always re-read everything in recovery path. */ for (stripe = 0; stripe < rbio->real_stripes; stripe++) { if (rbio->faila == stripe || rbio->failb == stripe) { @@ -2112,16 +2115,6 @@ static int __raid56_parity_recover(struc }
for (pagenr = 0; pagenr < rbio->stripe_npages; pagenr++) { - struct page *p; - - /* - * the rmw code may have already read this - * page in - */ - p = rbio_stripe_page(rbio, stripe, pagenr); - if (PageUptodate(p)) - continue; - ret = rbio_add_io_page(rbio, &bio_list, rbio_stripe_page(rbio, stripe, pagenr), stripe, pagenr, rbio->stripe_len);
Hi!
This is the start of the stable review cycle for the 4.19.256 release. There are 287 patches in this series, all will be posted as a response to this one. If anyone has any issues with these being applied, please let me know.
Responses should be made by Thu, 25 Aug 2022 08:00:15 +0000. Anything received after that time might be too late.
The whole patch series can be found in one patch at: https://www.kernel.org/pub/linux/kernel/v4.x/stable-review/patch-4.19.256-rc... or in the git tree and branch at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-4.19.y and the diffstat can be found below.
CIP testing did not find any problems here:
https://gitlab.com/cip-project/cip-testing/linux-stable-rc-ci/-/tree/linux-4...
Tested-by: Pavel Machek (CIP) pavel@denx.de
Best regards, Pavel
On Tue, Aug 23, 2022 at 10:22:49AM +0200, Greg Kroah-Hartman wrote:
This is the start of the stable review cycle for the 4.19.256 release. There are 287 patches in this series, all will be posted as a response to this one. If anyone has any issues with these being applied, please let me know.
Responses should be made by Thu, 25 Aug 2022 08:00:15 +0000. Anything received after that time might be too late.
Build results: total: 157 pass: 157 fail: 0 Qemu test results: total: 422 pass: 422 fail: 0
Tested-by: Guenter Roeck linux@roeck-us.net
Guenter
On 8/23/22 2:22 AM, Greg Kroah-Hartman wrote:
This is the start of the stable review cycle for the 4.19.256 release. There are 287 patches in this series, all will be posted as a response to this one. If anyone has any issues with these being applied, please let me know.
Responses should be made by Thu, 25 Aug 2022 08:00:15 +0000. Anything received after that time might be too late.
The whole patch series can be found in one patch at: https://www.kernel.org/pub/linux/kernel/v4.x/stable-review/patch-4.19.256-rc... or in the git tree and branch at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-4.19.y and the diffstat can be found below.
thanks,
greg k-h
Compiled and booted on my test system. No dmesg regressions.
Tested-by: Shuah Khan skhan@linuxfoundation.org
thanks, -- Shuah
On Tue, 23 Aug 2022 at 14:30, Greg Kroah-Hartman gregkh@linuxfoundation.org wrote:
This is the start of the stable review cycle for the 4.19.256 release. There are 287 patches in this series, all will be posted as a response to this one. If anyone has any issues with these being applied, please let me know.
Responses should be made by Thu, 25 Aug 2022 08:00:15 +0000. Anything received after that time might be too late.
The whole patch series can be found in one patch at: https://www.kernel.org/pub/linux/kernel/v4.x/stable-review/patch-4.19.256-rc... or in the git tree and branch at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-4.19.y and the diffstat can be found below.
thanks,
greg k-h
Results from Linaro's test farm. No regressions on arm64, arm, x86_64, and i386.
Tested-by: Linux Kernel Functional Testing lkft@linaro.org
## Build * kernel: 4.19.256-rc1 * git: https://gitlab.com/Linaro/lkft/mirrors/stable/linux-stable-rc * git branch: linux-4.19.y * git commit: 9901269a16d1de19c9264e1d333ac7cb74c0cbeb * git describe: v4.19.255-288-g9901269a16d1 * test details: https://qa-reports.linaro.org/lkft/linux-stable-rc-linux-4.19.y/build/v4.19....
## No test Regressions (compared to v4.19.255)
## No metric Regressions (compared to v4.19.255)
## No test Fixes (compared to v4.19.255)
## No metric Fixes (compared to v4.19.255)
## Test result summary total: 118642, pass: 106812, fail: 962, skip: 10495, xfail: 373
## Build Summary * arc: 20 total, 20 passed, 0 failed * arm: 581 total, 571 passed, 10 failed * arm64: 116 total, 114 passed, 2 failed * i386: 52 total, 50 passed, 2 failed * mips: 70 total, 70 passed, 0 failed * parisc: 24 total, 24 passed, 0 failed * powerpc: 108 total, 108 passed, 0 failed * s390: 24 total, 24 passed, 0 failed * sh: 48 total, 48 passed, 0 failed * sparc: 24 total, 24 passed, 0 failed * x86_64: 104 total, 102 passed, 2 failed
## Test suites summary * fwts * kunit * kvm-unit-tests * libhugetlbfs * log-parser-boot * log-parser-test * ltp-cap_bounds * ltp-commands * ltp-containers * ltp-controllers * ltp-cpuhotplug * ltp-crypto * ltp-cve * ltp-dio * ltp-fcntl-locktests * ltp-filecaps * ltp-fs * ltp-fs_bind * ltp-fs_perms_simple * ltp-fsx * ltp-hugetlb * ltp-io * ltp-ipc * ltp-math * ltp-mm * ltp-nptl * ltp-open-posix-tests * ltp-pty * ltp-sched * ltp-securebits * ltp-smoke * ltp-syscalls * ltp-tracing * network-basic-tests * packetdrill * rcutorture * v4l2-compliance * vdso
-- Linaro LKFT https://lkft.linaro.org
Hi Greg,
On Tue, Aug 23, 2022 at 10:22:49AM +0200, Greg Kroah-Hartman wrote:
This is the start of the stable review cycle for the 4.19.256 release. There are 287 patches in this series, all will be posted as a response to this one. If anyone has any issues with these being applied, please let me know.
Responses should be made by Thu, 25 Aug 2022 08:00:15 +0000. Anything received after that time might be too late.
Build test (gcc version 11.3.1 20220819): mips: 63 configs -> no failure arm: 115 configs -> no failure arm64: 2 configs -> no failure x86_64: 4 configs -> no failure alpha allmodconfig -> no failure powerpc allmodconfig -> no failure riscv allmodconfig -> no failure s390 allmodconfig -> no failure xtensa allmodconfig -> no failure
Boot test: x86_64: Booted on my test laptop. No regression. x86_64: Booted on qemu. No regression. [1]
[1]. https://openqa.qa.codethink.co.uk/tests/1684
Tested-by: Sudip Mukherjee sudip.mukherjee@codethink.co.uk
-- Regards Sudip
linux-stable-mirror@lists.linaro.org