March 2020 - Linux-stable-mirror

by Greg Kroah-Hartman

This is the start of the stable review cycle for the 5.5.11 release. There are 54 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 Sun, 22 Mar 2020 11:32:39 +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/v5.x/stable-review/patch-5.5.11-rc3… or in the git tree and branch at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-5.5.y and the diffstat can be found below. thanks, greg k-h ------------- Pseudo-Shortlog of commits: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Linux 5.5.11-rc3 Matteo Croce <mcroce(a)redhat.com> ipv4: ensure rcu_read_lock() in cipso_v4_error() Ard Biesheuvel <ardb(a)kernel.org> ARM: 8961/2: Fix Kbuild issue caused by per-task stack protector GCC plugin Tony Fischetti <tony.fischetti(a)gmail.com> HID: add ALWAYS_POLL quirk to lenovo pixart mouse Chen-Tsung Hsieh <chentsung(a)chromium.org> HID: google: add moonball USB id Jann Horn <jannh(a)google.com> mm: slub: add missing TID bump in kmem_cache_alloc_bulk() Kees Cook <keescook(a)chromium.org> ARM: 8958/1: rename missed uaccess .fixup section Florian Fainelli <f.fainelli(a)gmail.com> ARM: 8957/1: VDSO: Match ARMv8 timer in cntvct_functional() Ming Lei <ming.lei(a)redhat.com> blk-mq: insert flush request to the front of dispatch queue Qian Cai <cai(a)lca.pw> jbd2: fix data races at struct journal_head Andrew Lunn <andrew(a)lunn.ch> net: dsa: mv88e6xxx: Fix masking of egress port Amit Cohen <amitc(a)mellanox.com> mlxsw: pci: Wait longer before accessing the device after reset Alex Maftei (amaftei) <amaftei(a)solarflare.com> sfc: fix timestamp reconstruction at 16-bit rollover points Taehee Yoo <ap420073(a)gmail.com> net: rmnet: fix packet forwarding in rmnet bridge mode Taehee Yoo <ap420073(a)gmail.com> net: rmnet: fix bridge mode bugs Taehee Yoo <ap420073(a)gmail.com> net: rmnet: use upper/lower device infrastructure Taehee Yoo <ap420073(a)gmail.com> net: rmnet: do not allow to change mux id if mux id is duplicated Taehee Yoo <ap420073(a)gmail.com> net: rmnet: remove rcu_read_lock in rmnet_force_unassociate_device() Taehee Yoo <ap420073(a)gmail.com> net: rmnet: fix suspicious RCU usage Taehee Yoo <ap420073(a)gmail.com> net: rmnet: fix NULL pointer dereference in rmnet_changelink() Taehee Yoo <ap420073(a)gmail.com> net: rmnet: fix NULL pointer dereference in rmnet_newlink() Luo bin <luobin9(a)huawei.com> hinic: fix a bug of rss configuration Luo bin <luobin9(a)huawei.com> hinic: fix a bug of setting hw_ioctxt Luo bin <luobin9(a)huawei.com> hinic: fix a irq affinity bug Antoine Tenart <antoine.tenart(a)bootlin.com> net: phy: mscc: fix firmware paths yangerkun <yangerkun(a)huawei.com> slip: not call free_netdev before rtnl_unlock in slip_open Nicolas Saenz Julienne <nsaenzjulienne(a)suse.de> net: bcmgenet: Clear ID_MODE_DIS in EXT_RGMII_OOB_CTRL when not needed Linus Torvalds <torvalds(a)linux-foundation.org> signal: avoid double atomic counter increments for user accounting Masahiro Yamada <masahiroy(a)kernel.org> kbuild: add dt_binding_check to PHONY in a correct place Masahiro Yamada <masahiroy(a)kernel.org> kbuild: add dtbs_check to PHONY Jens Axboe <axboe(a)kernel.dk> io_uring: pick up link work on submit reference drop Monk Liu <Monk.Liu(a)amd.com> drm/amdgpu: fix memory leak during TDR test(v2) Xiaoguang Wang <xiaoguang.wang(a)linux.alibaba.com> io_uring: fix poll_list race for SETUP_IOPOLL|SETUP_SQPOLL Ming Lei <ming.lei(a)redhat.com> blk-mq: insert passthrough request into hctx->dispatch directly Esben Haabendal <esben(a)geanix.com> net: ll_temac: Handle DMA halt condition caused by buffer underrun Esben Haabendal <esben(a)geanix.com> net: ll_temac: Fix RX buffer descriptor handling on GFP_ATOMIC pressure Esben Haabendal <esben(a)geanix.com> net: ll_temac: Add more error handling of dma_map_single() calls Esben Haabendal <esben(a)geanix.com> net: ll_temac: Fix race condition causing TX hang Madhuparna Bhowmik <madhuparnabhowmik10(a)gmail.com> mac80211: rx: avoid RCU list traversal under mutex Marek Vasut <marex(a)denx.de> net: ks8851-ml: Fix IRQ handling and locking Daniele Palmas <dnlplm(a)gmail.com> net: usb: qmi_wwan: restore mtu min/max values after raw_ip switch Igor Druzhinin <igor.druzhinin(a)citrix.com> scsi: libfc: free response frame from GPN_ID Johannes Berg <johannes.berg(a)intel.com> cfg80211: check reg_rule for NULL in handle_channel_custom() Tom Zanussi <zanussi(a)kernel.org> tracing: Fix number printing bug in print_synth_event() Michael Ellerman <mpe(a)ellerman.id.au> selftests/rseq: Fix out-of-tree compilation Heidi Fahim <heidifahim(a)google.com> kunit: run kunit_tool from any directory Greentime Hu <greentime.hu(a)sifive.com> riscv: set pmp configuration if kernel is running in M-mode Hanno Zulla <kontakt(a)hanno.de> HID: hid-bigbenff: fix race condition for scheduled work during removal Hanno Zulla <kontakt(a)hanno.de> HID: hid-bigbenff: call hid_hw_stop() in case of error Hanno Zulla <kontakt(a)hanno.de> HID: hid-bigbenff: fix general protection fault caused by double kfree Kai-Heng Feng <kai.heng.feng(a)canonical.com> HID: i2c-hid: add Trekstor Surfbook E11B to descriptor override Mika Westerberg <mika.westerberg(a)linux.intel.com> ACPI: watchdog: Set default timeout in probe Mansour Behabadi <mansour(a)oxplot.com> HID: apple: Add support for recent firmware on Magic Keyboards Jean Delvare <jdelvare(a)suse.de> ACPI: watchdog: Allow disabling WDAT at boot Linus Walleij <linus.walleij(a)linaro.org> pinctrl: qcom: ssbi-gpio: Fix fwspec parsing bug ------------- Diffstat: Documentation/admin-guide/kernel-parameters.txt | 4 + Makefile | 7 +- arch/arm/Makefile | 4 +- arch/arm/boot/compressed/Makefile | 4 +- arch/arm/kernel/vdso.c | 2 + arch/arm/lib/copy_from_user.S | 2 +- arch/riscv/include/asm/csr.h | 12 ++ arch/riscv/kernel/head.S | 6 + block/blk-flush.c | 2 +- block/blk-mq-sched.c | 44 ++++- block/blk-mq.c | 18 +- block/blk-mq.h | 3 +- drivers/acpi/acpi_watchdog.c | 12 +- drivers/gpu/drm/amd/powerplay/smu_v11_0.c | 6 +- drivers/hid/hid-apple.c | 3 +- drivers/hid/hid-bigbenff.c | 31 ++- drivers/hid/hid-google-hammer.c | 2 + drivers/hid/hid-ids.h | 2 + drivers/hid/hid-quirks.c | 1 + drivers/hid/i2c-hid/i2c-hid-dmi-quirks.c | 8 + drivers/net/dsa/mv88e6xxx/global1.c | 4 +- drivers/net/ethernet/broadcom/genet/bcmmii.c | 1 + drivers/net/ethernet/huawei/hinic/hinic_hw_dev.c | 1 + drivers/net/ethernet/huawei/hinic/hinic_hw_dev.h | 2 +- drivers/net/ethernet/huawei/hinic/hinic_hw_if.h | 1 + drivers/net/ethernet/huawei/hinic/hinic_hw_qp.h | 1 + drivers/net/ethernet/huawei/hinic/hinic_main.c | 3 +- drivers/net/ethernet/huawei/hinic/hinic_rx.c | 5 +- drivers/net/ethernet/mellanox/mlxsw/pci_hw.h | 2 +- drivers/net/ethernet/micrel/ks8851_mll.c | 14 +- drivers/net/ethernet/qualcomm/rmnet/rmnet_config.c | 186 +++++++++--------- drivers/net/ethernet/qualcomm/rmnet/rmnet_config.h | 3 +- .../net/ethernet/qualcomm/rmnet/rmnet_handlers.c | 7 +- drivers/net/ethernet/qualcomm/rmnet/rmnet_vnd.c | 8 - drivers/net/ethernet/qualcomm/rmnet/rmnet_vnd.h | 1 - drivers/net/ethernet/sfc/ptp.c | 38 +++- drivers/net/ethernet/xilinx/ll_temac.h | 4 + drivers/net/ethernet/xilinx/ll_temac_main.c | 209 +++++++++++++++++---- drivers/net/phy/mscc.c | 4 +- drivers/net/slip/slip.c | 3 + drivers/net/usb/qmi_wwan.c | 3 + drivers/pinctrl/qcom/pinctrl-ssbi-gpio.c | 2 +- drivers/scsi/libfc/fc_disc.c | 2 + drivers/watchdog/wdat_wdt.c | 23 +++ fs/io_uring.c | 67 +++---- fs/jbd2/transaction.c | 8 +- kernel/signal.c | 23 ++- kernel/trace/trace_events_hist.c | 32 +++- mm/slub.c | 9 + net/ipv4/cipso_ipv4.c | 7 +- net/mac80211/rx.c | 2 +- net/wireless/reg.c | 2 +- tools/testing/kunit/kunit.py | 12 ++ tools/testing/selftests/rseq/Makefile | 2 +- 54 files changed, 610 insertions(+), 254 deletions(-)

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[PATCH 4.4 00/93] 4.4.217-rc1 review

by Greg Kroah-Hartman

This is the start of the stable review cycle for the 4.4.217 release. There are 93 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 Sat, 21 Mar 2020 12:37:04 +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-4.4.217-rc… or in the git tree and branch at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-4.4.y and the diffstat can be found below. thanks, greg k-h ------------- Pseudo-Shortlog of commits: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Linux 4.4.217-rc1 Matteo Croce <mcroce(a)redhat.com> ipv4: ensure rcu_read_lock() in cipso_v4_error() Jann Horn <jannh(a)google.com> mm: slub: add missing TID bump in kmem_cache_alloc_bulk() Kees Cook <keescook(a)chromium.org> ARM: 8958/1: rename missed uaccess .fixup section Florian Fainelli <f.fainelli(a)gmail.com> ARM: 8957/1: VDSO: Match ARMv8 timer in cntvct_functional() Qian Cai <cai(a)lca.pw> jbd2: fix data races at struct journal_head Linus Torvalds <torvalds(a)linux-foundation.org> signal: avoid double atomic counter increments for user accounting Marek Vasut <marex(a)denx.de> net: ks8851-ml: Fix IRQ handling and locking Kim Phillips <kim.phillips(a)amd.com> perf/amd/uncore: Replace manual sampling check with CAP_NO_INTERRUPT flag Sven Eckelmann <sven(a)narfation.org> batman-adv: Don't schedule OGM for disabled interface Sven Eckelmann <sven(a)narfation.org> batman-adv: Avoid free/alloc race when handling OGM buffer Sven Eckelmann <sven(a)narfation.org> batman-adv: Only read OGM tvlv_len after buffer len check Sven Eckelmann <sven(a)narfation.org> batman-adv: Reduce tt_global hash refcnt only for removed entry Sven Eckelmann <sven(a)narfation.org> batman-adv: Reduce tt_local hash refcnt only for removed entry Sven Eckelmann <sven(a)narfation.org> batman-adv: Reduce claim hash refcnt only for removed entry Sven Eckelmann <sven(a)narfation.org> batman-adv: Prevent duplicated tvlv handler Sven Eckelmann <sven(a)narfation.org> batman-adv: Prevent duplicated global TT entry Sven Eckelmann <sven(a)narfation.org> batman-adv: Prevent duplicated nc_node entry Sven Eckelmann <sven(a)narfation.org> batman-adv: Prevent duplicated gateway_node entry Linus Lüssing <linus.luessing(a)c0d3.blue> batman-adv: Avoid storing non-TT-sync flags on singular entries too Sven Eckelmann <sven(a)narfation.org> batman-adv: Fix debugfs path for renamed softif Sven Eckelmann <sven(a)narfation.org> batman-adv: Fix debugfs path for renamed hardif Marek Lindner <mareklindner(a)neomailbox.ch> batman-adv: prevent TT request storms by not sending inconsistent TT TLVLs Linus Lüssing <linus.luessing(a)c0d3.blue> batman-adv: Fix TT sync flags for intermediate TT responses Sven Eckelmann <sven(a)narfation.org> batman-adv: Avoid race in TT TVLV allocator helper Sven Eckelmann <sven(a)narfation.org> batman-adv: Fix skbuff rcsum on packet reroute Matthias Schiffer <mschiffer(a)universe-factory.net> batman-adv: update data pointers after skb_cow() Sven Eckelmann <sven(a)narfation.org> batman-adv: Fix internal interface indices types Sven Eckelmann <sven(a)narfation.org> batman-adv: Fix lock for ogm cnt access in batadv_iv_ogm_calc_tq Linus Lüssing <linus.luessing(a)c0d3.blue> batman-adv: fix TT sync flag inconsistencies Sven Eckelmann <sven(a)narfation.org> batman-adv: Fix rx packet/bytes stats on local ARP reply Linus Lüssing <linus.luessing(a)c0d3.blue> batman-adv: Fix transmission of final, 16th fragment Sven Eckelmann <sven(a)narfation.org> batman-adv: Fix double free during fragment merge error Sven Eckelmann <sven(a)narfation.org> batman-adv: Add missing refcnt for last_candidate Sven Eckelmann <sven(a)narfation.org> batman-adv: Fix speedy join in gateway client mode Sven Eckelmann <sven(a)narfation.org> batman-adv: Free last_bonding_candidate on release of orig_node Sven Eckelmann <sven(a)narfation.org> batman-adv: Fix reference leak in batadv_find_router Sven Eckelmann <sven(a)narfation.org> batman-adv: Fix non-atomic bla_claim::backbone_gw access Simon Wunderlich <sw(a)simonwunderlich.de> batman-adv: lock crc access in bridge loop avoidance Sven Eckelmann <sven(a)narfation.org> batman-adv: Fix orig_node_vlan leak on orig_node_release Sven Eckelmann <sven(a)narfation.org> batman-adv: Avoid nullptr dereference in dat after vlan_insert_tag Sven Eckelmann <sven(a)narfation.org> batman-adv: Avoid nullptr dereference in bla after vlan_insert_tag Sven Eckelmann <sven(a)narfation.org> batman-adv: Clean up untagged vlan when destroying via rtnl-link Sven Eckelmann <sven(a)narfation.org> batman-adv: Fix ICMP RR ethernet access after skb_linearize Sven Eckelmann <sven(a)narfation.org> batman-adv: Fix use-after-free/double-free of tt_req_node Florian Westphal <fw(a)strlen.de> batman-adv: fix skb deref after free Linus Lüssing <linus.luessing(a)c0d3.blue> batman-adv: Avoid duplicate neigh_node additions Sven Eckelmann <sven(a)narfation.org> batman-adv: Fix reference counting of vlan object for tt_local_entry Sven Eckelmann <sven(a)narfation.org> batman-adv: Drop reference to netdevice on last reference Sven Eckelmann <sven(a)narfation.org> batman-adv: Deactivate TO_BE_ACTIVATED hardif on shutdown Marek Lindner <mareklindner(a)neomailbox.ch> batman-adv: init neigh node last seen field Sven Eckelmann <sven.eckelmann(a)open-mesh.com> batman-adv: Fix integer overflow in batadv_iv_ogm_calc_tq Sven Eckelmann <sven(a)narfation.org> batman-adv: Fix unexpected free of bcast_own on add_if error Andrew Lunn <andrew(a)lunn.ch> batman-adv: Avoid endless loop in bat-on-bat netdevice check Sven Eckelmann <sven(a)narfation.org> batman-adv: Only put orig_node_vlan list reference when removed Sven Eckelmann <sven(a)narfation.org> batman-adv: Only put gw_node list reference when removed Sven Eckelmann <sven(a)narfation.org> batman-adv: Fix invalid read while copying bat_iv.bcast_own Vladis Dronov <vdronov(a)redhat.com> efi: Add a sanity check to efivar_store_raw() Eric Dumazet <edumazet(a)google.com> ipv6: restrict IPV6_ADDRFORM operation qize wang <wangqize888888888(a)gmail.com> mwifiex: Fix heap overflow in mmwifiex_process_tdls_action_frame() Daniel Drake <drake(a)endlessm.com> iommu/vt-d: Ignore devices with out-of-spec domain number Zhenzhong Duan <zhenzhong.duan(a)gmail.com> iommu/vt-d: Fix the wrong printing in RHSA parsing Jakub Kicinski <kuba(a)kernel.org> netfilter: cthelper: add missing attribute validation for cthelper Jakub Kicinski <kuba(a)kernel.org> nl80211: add missing attribute validation for channel switch Jakub Kicinski <kuba(a)kernel.org> nl80211: add missing attribute validation for critical protocol indication Yonghyun Hwang <yonghyun(a)google.com> iommu/vt-d: Fix a bug in intel_iommu_iova_to_phys() for huge page Hans de Goede <hdegoede(a)redhat.com> iommu/vt-d: dmar: replace WARN_TAINT with pr_warn + add_taint Vladis Dronov <vdronov(a)redhat.com> efi: Fix a race and a buffer overflow while reading efivars via sysfs Eugeniy Paltsev <Eugeniy.Paltsev(a)synopsys.com> ARC: define __ALIGN_STR and __ALIGN symbols for ARC Vitaly Kuznetsov <vkuznets(a)redhat.com> KVM: x86: clear stale x86_emulate_ctxt->intercept value Al Viro <viro(a)zeniv.linux.org.uk> gfs2_atomic_open(): fix O_EXCL|O_CREAT handling on cold dcache Colin Ian King <colin.king(a)canonical.com> drm/amd/display: remove duplicated assignment to grph_obj_type Hans de Goede <hdegoede(a)redhat.com> iommu/vt-d: quirk_ioat_snb_local_iommu: replace WARN_TAINT with pr_warn + add_taint Jakub Kicinski <kuba(a)kernel.org> net: fq: add missing attribute validation for orphan mask Eric Dumazet <edumazet(a)google.com> bonding/alb: make sure arp header is pulled before accessing it Eric Dumazet <edumazet(a)google.com> slip: make slhc_compress() more robust against malicious packets Jakub Kicinski <kuba(a)kernel.org> net: fec: validate the new settings in fec_enet_set_coalesce() Mahesh Bandewar <maheshb(a)google.com> macvlan: add cond_resched() during multicast processing Mahesh Bandewar <maheshb(a)google.com> ipvlan: don't deref eth hdr before checking it's set Eric Dumazet <edumazet(a)google.com> ipvlan: do not use cond_resched_rcu() in ipvlan_process_multicast() Paolo Abeni <pabeni(a)redhat.com> ipvlan: egress mcast packets are not exceptional Jiri Wiesner <jwiesner(a)suse.com> ipvlan: do not add hardware address of master to its unicast filter list Mahesh Bandewar <maheshb(a)google.com> ipvlan: add cond_resched_rcu() while processing muticast backlog Jakub Kicinski <kuba(a)kernel.org> nfc: add missing attribute validation for vendor subcommand Jakub Kicinski <kuba(a)kernel.org> nfc: add missing attribute validation for SE API Jakub Kicinski <kuba(a)kernel.org> team: add missing attribute validation for array index Jakub Kicinski <kuba(a)kernel.org> team: add missing attribute validation for port ifindex Jakub Kicinski <kuba(a)kernel.org> nl802154: add missing attribute validation for dev_type Jakub Kicinski <kuba(a)kernel.org> nl802154: add missing attribute validation Jakub Kicinski <kuba(a)kernel.org> fib: add missing attribute validation for tun_id Vasundhara Volam <vasundhara-v.volam(a)broadcom.com> bnxt_en: reinitialize IRQs when MTU is modified Dan Carpenter <dan.carpenter(a)oracle.com> net: nfc: fix bounds checking bugs on "pipe" You-Sheng Yang <vicamo.yang(a)canonical.com> r8152: check disconnect status after long sleep Petr Malat <oss(a)malat.biz> NFS: Remove superfluous kmap in nfs_readdir_xdr_to_array ------------- Diffstat: Makefile | 4 +- arch/arc/include/asm/linkage.h | 2 + arch/arm/kernel/vdso.c | 2 + arch/arm/lib/copy_from_user.S | 2 +- arch/x86/kernel/cpu/perf_event_amd_uncore.c | 16 +- arch/x86/kvm/emulate.c | 1 + drivers/firmware/efi/efivars.c | 32 +++- drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c | 3 +- drivers/iommu/dmar.c | 21 ++- drivers/iommu/intel-iommu.c | 13 +- drivers/net/bonding/bond_alb.c | 20 +-- drivers/net/ethernet/broadcom/bnxt/bnxt.c | 4 +- drivers/net/ethernet/freescale/fec_main.c | 6 +- drivers/net/ethernet/micrel/ks8851_mll.c | 14 +- drivers/net/ipvlan/ipvlan_core.c | 19 +- drivers/net/ipvlan/ipvlan_main.c | 5 +- drivers/net/macvlan.c | 2 + drivers/net/slip/slhc.c | 14 +- drivers/net/team/team.c | 2 + drivers/net/usb/r8152.c | 6 + drivers/net/wireless/mwifiex/tdls.c | 70 +++++++- fs/gfs2/inode.c | 2 +- fs/jbd2/transaction.c | 8 +- fs/nfs/dir.c | 2 - include/net/fib_rules.h | 1 + kernel/signal.c | 23 ++- mm/slub.c | 9 + net/batman-adv/bat_iv_ogm.c | 115 +++++++++---- net/batman-adv/bridge_loop_avoidance.c | 152 +++++++++++++--- net/batman-adv/debugfs.c | 40 +++++ net/batman-adv/debugfs.h | 11 ++ net/batman-adv/distributed-arp-table.c | 15 +- net/batman-adv/fragmentation.c | 14 +- net/batman-adv/gateway_client.c | 18 +- net/batman-adv/hard-interface.c | 89 ++++++++-- net/batman-adv/hard-interface.h | 6 +- net/batman-adv/main.c | 8 +- net/batman-adv/network-coding.c | 33 ++-- net/batman-adv/originator.c | 26 ++- net/batman-adv/originator.h | 4 +- net/batman-adv/routing.c | 111 +++++++++--- net/batman-adv/send.c | 4 +- net/batman-adv/soft-interface.c | 9 + net/batman-adv/translation-table.c | 249 ++++++++++++++++++--------- net/batman-adv/types.h | 23 ++- net/ieee802154/nl_policy.c | 6 + net/ipv4/cipso_ipv4.c | 7 +- net/ipv6/ipv6_sockglue.c | 10 +- net/netfilter/nfnetlink_cthelper.c | 2 + net/nfc/hci/core.c | 19 +- net/nfc/netlink.c | 3 + net/sched/sch_fq.c | 1 + net/wireless/nl80211.c | 3 + 53 files changed, 963 insertions(+), 318 deletions(-)

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[PATCH v6 16/16] doc: Update documentation of ->exec_*_mutex

by Bernd Edlinger

This brings the outdated Documentation/security/credentials.rst back in line with the current implementation, and describes the purpose of current->signal->exec_update_mutex, current->signal->exec_guard_mutex and current->signal->unsafe_execve_in_progress. Signed-off-by: Bernd Edlinger <bernd.edlinger(a)hotmail.de> --- Documentation/security/credentials.rst | 29 +++++++++++++++++++++-------- 1 file changed, 21 insertions(+), 8 deletions(-) diff --git a/Documentation/security/credentials.rst b/Documentation/security/credentials.rst index 282e79f..fe4cd76 100644 --- a/Documentation/security/credentials.rst +++ b/Documentation/security/credentials.rst @@ -437,15 +437,30 @@ new set of credentials by calling:: struct cred *prepare_creds(void); -this locks current->cred_replace_mutex and then allocates and constructs a -duplicate of the current process's credentials, returning with the mutex still -held if successful. It returns NULL if not successful (out of memory). +this allocates and constructs a duplicate of the current process's credentials. +It returns NULL if not successful (out of memory). + +If called from __do_execve_file, the mutex current->signal->exec_guard_mutex +is acquired before this function gets called, and usually released after +the new process mmap and credentials are installed. However if one of the +sibling threads are being traced when the execve is invoked, there is no +guarantee how long it takes to terminate all sibling threads, and therefore +the variable current->signal->unsafe_execve_in_progress is set, and the +exec_guard_mutex is released immediately. Functions that may have effect +on the credentials of a different thread need to lock the exec_guard_mutex +and additionally check the unsafe_execve_in_progress status, and fail with +-EAGAIN if that variable is set. The mutex prevents ``ptrace()`` from altering the ptrace state of a process while security checks on credentials construction and changing is taking place as the ptrace state may alter the outcome, particularly in the case of ``execve()``. +The mutex current->signal->exec_update_mutex is acquired when only a single +thread is remaining, and the credentials and the process mmap are actually +changed. Functions that only need to access to a consistent state of the +credentials and the process mmap do only need to aquire this mutex. + The new credentials set should be altered appropriately, and any security checks and hooks done. Both the current and the proposed sets of credentials are available for this purpose as current_cred() will return the current set @@ -466,9 +481,8 @@ by calling:: This will alter various aspects of the credentials and the process, giving the LSM a chance to do likewise, then it will use ``rcu_assign_pointer()`` to -actually commit the new credentials to ``current->cred``, it will release -``current->cred_replace_mutex`` to allow ``ptrace()`` to take place, and it -will notify the scheduler and others of the changes. +actually commit the new credentials to ``current->cred``, and it will notify +the scheduler and others of the changes. This function is guaranteed to return 0, so that it can be tail-called at the end of such functions as ``sys_setresuid()``. @@ -486,8 +500,7 @@ invoked:: void abort_creds(struct cred *new); -This releases the lock on ``current->cred_replace_mutex`` that -``prepare_creds()`` got and then releases the new credentials. +This releases the new credentials. A typical credentials alteration function would look something like this:: -- 1.9.1

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[PATCH 4.9 00/90] 4.9.217-rc1 review

by Greg Kroah-Hartman

This is the start of the stable review cycle for the 4.9.217 release. There are 90 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 Sat, 21 Mar 2020 12:37:04 +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-4.9.217-rc… or in the git tree and branch at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-4.9.y and the diffstat can be found below. thanks, greg k-h ------------- Pseudo-Shortlog of commits: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Linux 4.9.217-rc1 Matteo Croce <mcroce(a)redhat.com> ipv4: ensure rcu_read_lock() in cipso_v4_error() Jann Horn <jannh(a)google.com> mm: slub: add missing TID bump in kmem_cache_alloc_bulk() Kees Cook <keescook(a)chromium.org> ARM: 8958/1: rename missed uaccess .fixup section Florian Fainelli <f.fainelli(a)gmail.com> ARM: 8957/1: VDSO: Match ARMv8 timer in cntvct_functional() Qian Cai <cai(a)lca.pw> jbd2: fix data races at struct journal_head Linus Torvalds <torvalds(a)linux-foundation.org> signal: avoid double atomic counter increments for user accounting Madhuparna Bhowmik <madhuparnabhowmik10(a)gmail.com> mac80211: rx: avoid RCU list traversal under mutex Marek Vasut <marex(a)denx.de> net: ks8851-ml: Fix IRQ handling and locking Johannes Berg <johannes.berg(a)intel.com> cfg80211: check reg_rule for NULL in handle_channel_custom() Kai-Heng Feng <kai.heng.feng(a)canonical.com> HID: i2c-hid: add Trekstor Surfbook E11B to descriptor override Mansour Behabadi <mansour(a)oxplot.com> HID: apple: Add support for recent firmware on Magic Keyboards Jean Delvare <jdelvare(a)suse.de> ACPI: watchdog: Allow disabling WDAT at boot Kim Phillips <kim.phillips(a)amd.com> perf/amd/uncore: Replace manual sampling check with CAP_NO_INTERRUPT flag Sven Eckelmann <sven(a)narfation.org> batman-adv: Use explicit tvlv padding for ELP packets Sven Eckelmann <sven(a)narfation.org> batman-adv: Avoid probe ELP information leak Matthias Schiffer <mschiffer(a)universe-factory.net> batman-adv: update data pointers after skb_cow() Sven Eckelmann <sven(a)narfation.org> batman-adv: Don't schedule OGM for disabled interface Sven Eckelmann <sven(a)narfation.org> batman-adv: Avoid free/alloc race when handling OGM buffer Sven Eckelmann <sven(a)narfation.org> batman-adv: Avoid free/alloc race when handling OGM2 buffer Sven Eckelmann <sven(a)narfation.org> batman-adv: Fix duplicated OGMs on NETDEV_UP Sven Eckelmann <sven(a)narfation.org> batman-adv: Prevent duplicated gateway_node entry Linus Lüssing <linus.luessing(a)c0d3.blue> batman-adv: Fix multicast TT issues with bogus ROAM flags Linus Lüssing <linus.luessing(a)c0d3.blue> batman-adv: Avoid storing non-TT-sync flags on singular entries too Sven Eckelmann <sven(a)narfation.org> batman-adv: Fix debugfs path for renamed softif Sven Eckelmann <sven(a)narfation.org> batman-adv: Fix debugfs path for renamed hardif Marek Lindner <mareklindner(a)neomailbox.ch> batman-adv: prevent TT request storms by not sending inconsistent TT TLVLs Linus Lüssing <linus.luessing(a)c0d3.blue> batman-adv: Fix TT sync flags for intermediate TT responses Sven Eckelmann <sven(a)narfation.org> batman-adv: Avoid race in TT TVLV allocator helper Sven Eckelmann <sven(a)narfation.org> batman-adv: Fix internal interface indices types Sven Eckelmann <sven(a)narfation.org> batman-adv: Fix lock for ogm cnt access in batadv_iv_ogm_calc_tq Sven Eckelmann <sven.eckelmann(a)openmesh.com> batman-adv: Fix check of retrieved orig_gw in batadv_v_gw_is_eligible Sven Eckelmann <sven.eckelmann(a)open-mesh.com> batman-adv: Always initialize fragment header priority Sven Eckelmann <sven.eckelmann(a)openmesh.com> batman-adv: Avoid spurious warnings from bat_v neigh_cmp implementation Linus Lüssing <linus.luessing(a)c0d3.blue> batman-adv: fix TT sync flag inconsistencies Sven Eckelmann <sven(a)narfation.org> batman-adv: Accept only filled wifi station info Sven Eckelmann <sven(a)narfation.org> batman-adv: Use default throughput value on cfg80211 error Sven Eckelmann <sven(a)narfation.org> batman-adv: Fix rx packet/bytes stats on local ARP reply Sven Eckelmann <sven(a)narfation.org> batman-adv: Initialize gw sel_class via batadv_algo Linus Lüssing <linus.luessing(a)c0d3.blue> batman-adv: Fix transmission of final, 16th fragment Sven Eckelmann <sven(a)narfation.org> batman-adv: Fix double free during fragment merge error Vladis Dronov <vdronov(a)redhat.com> efi: Add a sanity check to efivar_store_raw() Eric Dumazet <edumazet(a)google.com> ipv6: restrict IPV6_ADDRFORM operation Daniel Drake <drake(a)endlessm.com> iommu/vt-d: Ignore devices with out-of-spec domain number Zhenzhong Duan <zhenzhong.duan(a)gmail.com> iommu/vt-d: Fix the wrong printing in RHSA parsing qize wang <wangqize888888888(a)gmail.com> mwifiex: Fix heap overflow in mmwifiex_process_tdls_action_frame() Jakub Kicinski <kuba(a)kernel.org> netfilter: cthelper: add missing attribute validation for cthelper Jakub Kicinski <kuba(a)kernel.org> nl80211: add missing attribute validation for channel switch Jakub Kicinski <kuba(a)kernel.org> nl80211: add missing attribute validation for beacon report scanning Jakub Kicinski <kuba(a)kernel.org> nl80211: add missing attribute validation for critical protocol indication Yonghyun Hwang <yonghyun(a)google.com> iommu/vt-d: Fix a bug in intel_iommu_iova_to_phys() for huge page Hans de Goede <hdegoede(a)redhat.com> iommu/vt-d: dmar: replace WARN_TAINT with pr_warn + add_taint Vladis Dronov <vdronov(a)redhat.com> efi: Fix a race and a buffer overflow while reading efivars via sysfs Eugeniy Paltsev <Eugeniy.Paltsev(a)synopsys.com> ARC: define __ALIGN_STR and __ALIGN symbols for ARC Vitaly Kuznetsov <vkuznets(a)redhat.com> KVM: x86: clear stale x86_emulate_ctxt->intercept value Al Viro <viro(a)zeniv.linux.org.uk> gfs2_atomic_open(): fix O_EXCL|O_CREAT handling on cold dcache Al Viro <viro(a)zeniv.linux.org.uk> cifs_atomic_open(): fix double-put on late allocation failure Colin Ian King <colin.king(a)canonical.com> drm/amd/display: remove duplicated assignment to grph_obj_type Hillf Danton <hdanton(a)sina.com> workqueue: don't use wq_select_unbound_cpu() for bound works Hans de Goede <hdegoede(a)redhat.com> iommu/vt-d: quirk_ioat_snb_local_iommu: replace WARN_TAINT with pr_warn + add_taint Halil Pasic <pasic(a)linux.ibm.com> virtio-blk: fix hw_queue stopped on arbitrary error Heiner Kallweit <hkallweit1(a)gmail.com> net: phy: fix MDIO bus PM PHY resuming Shakeel Butt <shakeelb(a)google.com> cgroup: memcg: net: do not associate sock with unrelated cgroup Eric Dumazet <edumazet(a)google.com> bonding/alb: make sure arp header is pulled before accessing it Eric Dumazet <edumazet(a)google.com> slip: make slhc_compress() more robust against malicious packets Jakub Kicinski <kuba(a)kernel.org> net: fec: validate the new settings in fec_enet_set_coalesce() Mahesh Bandewar <maheshb(a)google.com> macvlan: add cond_resched() during multicast processing Mahesh Bandewar <maheshb(a)google.com> ipvlan: don't deref eth hdr before checking it's set Eric Dumazet <edumazet(a)google.com> ipvlan: do not use cond_resched_rcu() in ipvlan_process_multicast() Paolo Abeni <pabeni(a)redhat.com> ipvlan: egress mcast packets are not exceptional Jiri Wiesner <jwiesner(a)suse.com> ipvlan: do not add hardware address of master to its unicast filter list Mahesh Bandewar <maheshb(a)google.com> ipvlan: add cond_resched_rcu() while processing muticast backlog Jakub Kicinski <kuba(a)kernel.org> nfc: add missing attribute validation for vendor subcommand Jakub Kicinski <kuba(a)kernel.org> nfc: add missing attribute validation for SE API Jakub Kicinski <kuba(a)kernel.org> team: add missing attribute validation for array index Jakub Kicinski <kuba(a)kernel.org> team: add missing attribute validation for port ifindex Jakub Kicinski <kuba(a)kernel.org> net: fq: add missing attribute validation for orphan mask Jakub Kicinski <kuba(a)kernel.org> macsec: add missing attribute validation for port Jakub Kicinski <kuba(a)kernel.org> nl802154: add missing attribute validation for dev_type Jakub Kicinski <kuba(a)kernel.org> nl802154: add missing attribute validation Jakub Kicinski <kuba(a)kernel.org> fib: add missing attribute validation for tun_id Vasundhara Volam <vasundhara-v.volam(a)broadcom.com> bnxt_en: reinitialize IRQs when MTU is modified You-Sheng Yang <vicamo.yang(a)canonical.com> r8152: check disconnect status after long sleep Dan Carpenter <dan.carpenter(a)oracle.com> net: nfc: fix bounds checking bugs on "pipe" Dmitry Bogdanov <dbogdanov(a)marvell.com> net: macsec: update SCI upon MAC address change. Hangbin Liu <liuhangbin(a)gmail.com> ipv6/addrconf: call ipv6_mc_up() for non-Ethernet interface Eric Dumazet <edumazet(a)google.com> gre: fix uninit-value in __iptunnel_pull_header Dmitry Yakunin <zeil(a)yandex-team.ru> cgroup, netclassid: periodically release file_lock on classid updating Florian Fainelli <f.fainelli(a)gmail.com> net: phy: Avoid multiple suspends David S. Miller <davem(a)davemloft.net> phy: Revert toggling reset changes. Petr Malat <oss(a)malat.biz> NFS: Remove superfluous kmap in nfs_readdir_xdr_to_array ------------- Diffstat: Documentation/filesystems/porting | 7 ++ Documentation/kernel-parameters.txt | 4 + Makefile | 4 +- arch/arc/include/asm/linkage.h | 2 + arch/arm/kernel/vdso.c | 2 + arch/arm/lib/copy_from_user.S | 2 +- arch/x86/events/amd/uncore.c | 14 +-- arch/x86/kvm/emulate.c | 1 + drivers/acpi/acpi_watchdog.c | 12 ++- drivers/block/virtio_blk.c | 8 +- drivers/firmware/efi/efivars.c | 32 ++++-- drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c | 3 +- drivers/hid/hid-apple.c | 3 +- drivers/hid/i2c-hid/i2c-hid-dmi-quirks.c | 8 ++ drivers/iommu/dmar.c | 21 ++-- drivers/iommu/intel-iommu.c | 13 ++- drivers/net/bonding/bond_alb.c | 20 ++-- drivers/net/ethernet/broadcom/bnxt/bnxt.c | 4 +- drivers/net/ethernet/freescale/fec_main.c | 6 +- drivers/net/ethernet/micrel/ks8851_mll.c | 14 +-- drivers/net/ipvlan/ipvlan_core.c | 19 ++-- drivers/net/ipvlan/ipvlan_main.c | 5 +- drivers/net/macsec.c | 12 ++- drivers/net/macvlan.c | 2 + drivers/net/phy/phy_device.c | 18 ++-- drivers/net/slip/slhc.c | 14 ++- drivers/net/team/team.c | 2 + drivers/net/usb/r8152.c | 6 ++ drivers/net/wireless/marvell/mwifiex/tdls.c | 70 +++++++++++-- fs/cifs/dir.c | 1 - fs/gfs2/inode.c | 2 +- fs/jbd2/transaction.c | 8 +- fs/nfs/dir.c | 2 - fs/open.c | 3 - include/linux/phy.h | 2 + include/net/fib_rules.h | 1 + kernel/cgroup.c | 4 + kernel/signal.c | 23 +++-- kernel/workqueue.c | 14 +-- mm/memcontrol.c | 4 + mm/slub.c | 9 ++ net/batman-adv/bat_iv_ogm.c | 105 +++++++++++++++---- net/batman-adv/bat_v.c | 25 +++-- net/batman-adv/bat_v_elp.c | 22 ++-- net/batman-adv/bat_v_ogm.c | 42 ++++++-- net/batman-adv/debugfs.c | 40 +++++++ net/batman-adv/debugfs.h | 11 ++ net/batman-adv/distributed-arp-table.c | 5 +- net/batman-adv/fragmentation.c | 22 ++-- net/batman-adv/gateway_client.c | 11 +- net/batman-adv/gateway_common.c | 5 + net/batman-adv/hard-interface.c | 51 +++++++-- net/batman-adv/originator.c | 4 +- net/batman-adv/originator.h | 4 +- net/batman-adv/routing.c | 11 +- net/batman-adv/soft-interface.c | 1 - net/batman-adv/translation-table.c | 149 ++++++++++++++++++++++----- net/batman-adv/types.h | 22 +++- net/core/netclassid_cgroup.c | 47 +++++++-- net/ieee802154/nl_policy.c | 6 ++ net/ipv4/cipso_ipv4.c | 7 +- net/ipv4/gre_demux.c | 12 ++- net/ipv6/addrconf.c | 4 + net/ipv6/ipv6_sockglue.c | 10 +- net/mac80211/rx.c | 2 +- net/netfilter/nfnetlink_cthelper.c | 2 + net/nfc/hci/core.c | 19 +++- net/nfc/netlink.c | 3 + net/sched/sch_fq.c | 1 + net/wireless/nl80211.c | 5 + net/wireless/reg.c | 2 +- 71 files changed, 809 insertions(+), 242 deletions(-)

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[PATCH 4.14 00/99] 4.14.174-rc1 review

by Greg Kroah-Hartman

This is the start of the stable review cycle for the 4.14.174 release. There are 99 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 Sat, 21 Mar 2020 12:37:04 +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-4.14.174-r… or in the git tree and branch at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-4.14.y and the diffstat can be found below. thanks, greg k-h ------------- Pseudo-Shortlog of commits: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Linux 4.14.174-rc1 Matteo Croce <mcroce(a)redhat.com> ipv4: ensure rcu_read_lock() in cipso_v4_error() Jann Horn <jannh(a)google.com> mm: slub: add missing TID bump in kmem_cache_alloc_bulk() Kees Cook <keescook(a)chromium.org> ARM: 8958/1: rename missed uaccess .fixup section Florian Fainelli <f.fainelli(a)gmail.com> ARM: 8957/1: VDSO: Match ARMv8 timer in cntvct_functional() Qian Cai <cai(a)lca.pw> jbd2: fix data races at struct journal_head Taehee Yoo <ap420073(a)gmail.com> net: rmnet: fix NULL pointer dereference in rmnet_newlink() Luo bin <luobin9(a)huawei.com> hinic: fix a bug of setting hw_ioctxt yangerkun <yangerkun(a)huawei.com> slip: not call free_netdev before rtnl_unlock in slip_open Linus Torvalds <torvalds(a)linux-foundation.org> signal: avoid double atomic counter increments for user accounting Madhuparna Bhowmik <madhuparnabhowmik10(a)gmail.com> mac80211: rx: avoid RCU list traversal under mutex Marek Vasut <marex(a)denx.de> net: ks8851-ml: Fix IRQ handling and locking Daniele Palmas <dnlplm(a)gmail.com> net: usb: qmi_wwan: restore mtu min/max values after raw_ip switch Igor Druzhinin <igor.druzhinin(a)citrix.com> scsi: libfc: free response frame from GPN_ID Johannes Berg <johannes.berg(a)intel.com> cfg80211: check reg_rule for NULL in handle_channel_custom() Kai-Heng Feng <kai.heng.feng(a)canonical.com> HID: i2c-hid: add Trekstor Surfbook E11B to descriptor override Mansour Behabadi <mansour(a)oxplot.com> HID: apple: Add support for recent firmware on Magic Keyboards Jean Delvare <jdelvare(a)suse.de> ACPI: watchdog: Allow disabling WDAT at boot Kim Phillips <kim.phillips(a)amd.com> perf/amd/uncore: Replace manual sampling check with CAP_NO_INTERRUPT flag Sven Eckelmann <sven(a)narfation.org> batman-adv: Don't schedule OGM for disabled interface Sven Eckelmann <sven(a)narfation.org> batman-adv: Avoid free/alloc race when handling OGM buffer Sven Eckelmann <sven(a)narfation.org> batman-adv: Avoid free/alloc race when handling OGM2 buffer Sven Eckelmann <sven(a)narfation.org> batman-adv: Fix duplicated OGMs on NETDEV_UP Sven Eckelmann <sven(a)narfation.org> batman-adv: Fix debugfs path for renamed softif Sven Eckelmann <sven(a)narfation.org> batman-adv: Fix debugfs path for renamed hardif Marek Lindner <mareklindner(a)neomailbox.ch> batman-adv: prevent TT request storms by not sending inconsistent TT TLVLs Linus Lüssing <linus.luessing(a)c0d3.blue> batman-adv: Fix TT sync flags for intermediate TT responses Sven Eckelmann <sven(a)narfation.org> batman-adv: Avoid race in TT TVLV allocator helper Matthias Schiffer <mschiffer(a)universe-factory.net> batman-adv: update data pointers after skb_cow() Sven Eckelmann <sven(a)narfation.org> batman-adv: Fix internal interface indices types Sven Eckelmann <sven(a)narfation.org> batman-adv: Fix lock for ogm cnt access in batadv_iv_ogm_calc_tq Sven Eckelmann <sven.eckelmann(a)openmesh.com> batman-adv: Fix check of retrieved orig_gw in batadv_v_gw_is_eligible Sven Eckelmann <sven.eckelmann(a)open-mesh.com> batman-adv: Always initialize fragment header priority Sven Eckelmann <sven.eckelmann(a)openmesh.com> batman-adv: Avoid spurious warnings from bat_v neigh_cmp implementation Vladis Dronov <vdronov(a)redhat.com> efi: Add a sanity check to efivar_store_raw() Karsten Graul <kgraul(a)linux.ibm.com> net/smc: check for valid ib_client_data Eric Dumazet <edumazet(a)google.com> ipv6: restrict IPV6_ADDRFORM operation Wolfram Sang <wsa+renesas(a)sang-engineering.com> i2c: acpi: put device when verifying client fails Daniel Drake <drake(a)endlessm.com> iommu/vt-d: Ignore devices with out-of-spec domain number Zhenzhong Duan <zhenzhong.duan(a)gmail.com> iommu/vt-d: Fix the wrong printing in RHSA parsing Jakub Kicinski <kuba(a)kernel.org> netfilter: nft_payload: add missing attribute validation for payload csum flags Jakub Kicinski <kuba(a)kernel.org> netfilter: cthelper: add missing attribute validation for cthelper Jakub Kicinski <kuba(a)kernel.org> nl80211: add missing attribute validation for channel switch Jakub Kicinski <kuba(a)kernel.org> nl80211: add missing attribute validation for beacon report scanning Jakub Kicinski <kuba(a)kernel.org> nl80211: add missing attribute validation for critical protocol indication Charles Keepax <ckeepax(a)opensource.cirrus.com> pinctrl: core: Remove extra kref_get which blocks hogs being freed Nicolas Belin <nbelin(a)baylibre.com> pinctrl: meson-gxl: fix GPIOX sdio pins Yonghyun Hwang <yonghyun(a)google.com> iommu/vt-d: Fix a bug in intel_iommu_iova_to_phys() for huge page Hans de Goede <hdegoede(a)redhat.com> iommu/vt-d: dmar: replace WARN_TAINT with pr_warn + add_taint Marc Zyngier <maz(a)kernel.org> iommu/dma: Fix MSI reservation allocation Tony Luck <tony.luck(a)intel.com> x86/mce: Fix logic and comments around MSR_PPIN_CTL Vladis Dronov <vdronov(a)redhat.com> efi: Fix a race and a buffer overflow while reading efivars via sysfs Eugeniy Paltsev <Eugeniy.Paltsev(a)synopsys.com> ARC: define __ALIGN_STR and __ALIGN symbols for ARC Vitaly Kuznetsov <vkuznets(a)redhat.com> KVM: x86: clear stale x86_emulate_ctxt->intercept value Al Viro <viro(a)zeniv.linux.org.uk> gfs2_atomic_open(): fix O_EXCL|O_CREAT handling on cold dcache Al Viro <viro(a)zeniv.linux.org.uk> cifs_atomic_open(): fix double-put on late allocation failure Steven Rostedt (VMware) <rostedt(a)goodmis.org> ktest: Add timeout for ssh sync testing Colin Ian King <colin.king(a)canonical.com> drm/amd/display: remove duplicated assignment to grph_obj_type Hillf Danton <hdanton(a)sina.com> workqueue: don't use wq_select_unbound_cpu() for bound works Hans de Goede <hdegoede(a)redhat.com> iommu/vt-d: quirk_ioat_snb_local_iommu: replace WARN_TAINT with pr_warn + add_taint Halil Pasic <pasic(a)linux.ibm.com> virtio-blk: fix hw_queue stopped on arbitrary error Dan Moulding <dmoulding(a)me.com> iwlwifi: mvm: Do not require PHY_SKU NVM section for 3168 devices Michal Koutný <mkoutny(a)suse.com> cgroup: Iterate tasks that did not finish do_exit() Vasily Averin <vvs(a)virtuozzo.com> cgroup: cgroup_procs_next should increase position index Mahesh Bandewar <maheshb(a)google.com> ipvlan: don't deref eth hdr before checking it's set Paolo Abeni <pabeni(a)redhat.com> ipvlan: egress mcast packets are not exceptional Jiri Wiesner <jwiesner(a)suse.com> ipvlan: do not add hardware address of master to its unicast filter list Dmitry Yakunin <zeil(a)yandex-team.ru> inet_diag: return classid for all socket types Mahesh Bandewar <maheshb(a)google.com> macvlan: add cond_resched() during multicast processing Jakub Kicinski <kuba(a)kernel.org> net: fec: validate the new settings in fec_enet_set_coalesce() Eric Dumazet <edumazet(a)google.com> slip: make slhc_compress() more robust against malicious packets Eric Dumazet <edumazet(a)google.com> bonding/alb: make sure arp header is pulled before accessing it Heiner Kallweit <hkallweit1(a)gmail.com> net: phy: fix MDIO bus PM PHY resuming Jakub Kicinski <kuba(a)kernel.org> nfc: add missing attribute validation for vendor subcommand Jakub Kicinski <kuba(a)kernel.org> nfc: add missing attribute validation for SE API Jakub Kicinski <kuba(a)kernel.org> team: add missing attribute validation for array index Jakub Kicinski <kuba(a)kernel.org> team: add missing attribute validation for port ifindex Jakub Kicinski <kuba(a)kernel.org> net: fq: add missing attribute validation for orphan mask Jakub Kicinski <kuba(a)kernel.org> macsec: add missing attribute validation for port Jakub Kicinski <kuba(a)kernel.org> can: add missing attribute validation for termination Jakub Kicinski <kuba(a)kernel.org> nl802154: add missing attribute validation for dev_type Jakub Kicinski <kuba(a)kernel.org> nl802154: add missing attribute validation Jakub Kicinski <kuba(a)kernel.org> fib: add missing attribute validation for tun_id Eric Dumazet <edumazet(a)google.com> net: memcg: fix lockdep splat in inet_csk_accept() Shakeel Butt <shakeelb(a)google.com> net: memcg: late association of sock to memcg Shakeel Butt <shakeelb(a)google.com> cgroup: memcg: net: do not associate sock with unrelated cgroup Vasundhara Volam <vasundhara-v.volam(a)broadcom.com> bnxt_en: reinitialize IRQs when MTU is modified Edward Cree <ecree(a)solarflare.com> sfc: detach from cb_page in efx_copy_channel() You-Sheng Yang <vicamo.yang(a)canonical.com> r8152: check disconnect status after long sleep Willem de Bruijn <willemb(a)google.com> net/packet: tpacket_rcv: do not increment ring index on drop Dan Carpenter <dan.carpenter(a)oracle.com> net: nfc: fix bounds checking bugs on "pipe" Dmitry Bogdanov <dbogdanov(a)marvell.com> net: macsec: update SCI upon MAC address change. Pablo Neira Ayuso <pablo(a)netfilter.org> netlink: Use netlink header as base to calculate bad attribute offset Eric Dumazet <edumazet(a)google.com> ipvlan: do not use cond_resched_rcu() in ipvlan_process_multicast() Mahesh Bandewar <maheshb(a)google.com> ipvlan: add cond_resched_rcu() while processing muticast backlog Hangbin Liu <liuhangbin(a)gmail.com> ipv6/addrconf: call ipv6_mc_up() for non-Ethernet interface Eric Dumazet <edumazet(a)google.com> gre: fix uninit-value in __iptunnel_pull_header Dmitry Yakunin <zeil(a)yandex-team.ru> cgroup, netclassid: periodically release file_lock on classid updating Florian Fainelli <f.fainelli(a)gmail.com> net: phy: Avoid multiple suspends David S. Miller <davem(a)davemloft.net> phy: Revert toggling reset changes. ------------- Diffstat: Documentation/admin-guide/kernel-parameters.txt | 4 + Documentation/filesystems/porting | 7 ++ Makefile | 4 +- arch/arc/include/asm/linkage.h | 2 + arch/arm/kernel/vdso.c | 2 + arch/arm/lib/copy_from_user.S | 2 +- arch/x86/events/amd/uncore.c | 14 ++-- arch/x86/kernel/cpu/mcheck/mce_intel.c | 9 ++- arch/x86/kvm/emulate.c | 1 + drivers/acpi/acpi_watchdog.c | 12 ++- drivers/block/virtio_blk.c | 8 +- drivers/firmware/efi/efivars.c | 32 +++++--- drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c | 3 +- drivers/hid/hid-apple.c | 3 +- drivers/hid/i2c-hid/i2c-hid-dmi-quirks.c | 8 ++ drivers/i2c/i2c-core-acpi.c | 10 ++- drivers/iommu/dma-iommu.c | 16 ++-- drivers/iommu/dmar.c | 21 +++-- drivers/iommu/intel-iommu.c | 13 +-- drivers/net/bonding/bond_alb.c | 20 ++--- drivers/net/can/dev.c | 1 + drivers/net/ethernet/broadcom/bnxt/bnxt.c | 4 +- drivers/net/ethernet/freescale/fec_main.c | 6 +- drivers/net/ethernet/huawei/hinic/hinic_hw_dev.c | 1 + drivers/net/ethernet/huawei/hinic/hinic_hw_dev.h | 2 +- drivers/net/ethernet/huawei/hinic/hinic_hw_if.h | 1 + drivers/net/ethernet/micrel/ks8851_mll.c | 14 ++-- drivers/net/ethernet/qualcomm/rmnet/rmnet_config.c | 5 ++ drivers/net/ethernet/sfc/efx.c | 1 + drivers/net/ipvlan/ipvlan_core.c | 19 +++-- drivers/net/ipvlan/ipvlan_main.c | 5 +- drivers/net/macsec.c | 12 +-- drivers/net/macvlan.c | 2 + drivers/net/phy/phy_device.c | 18 +++-- drivers/net/slip/slhc.c | 14 +++- drivers/net/slip/slip.c | 3 + drivers/net/team/team.c | 2 + drivers/net/usb/qmi_wwan.c | 3 + drivers/net/usb/r8152.c | 8 ++ drivers/net/wireless/intel/iwlwifi/mvm/nvm.c | 3 +- drivers/pinctrl/core.c | 1 - drivers/pinctrl/meson/pinctrl-meson-gxl.c | 4 +- drivers/scsi/libfc/fc_disc.c | 2 + fs/cifs/dir.c | 1 - fs/gfs2/inode.c | 2 +- fs/jbd2/transaction.c | 8 +- fs/open.c | 3 - include/linux/cgroup.h | 1 + include/linux/inet_diag.h | 18 +++-- include/linux/phy.h | 2 + include/net/fib_rules.h | 1 + kernel/cgroup/cgroup.c | 37 ++++++--- kernel/signal.c | 23 +++--- kernel/workqueue.c | 14 ++-- mm/memcontrol.c | 14 +--- mm/slub.c | 9 +++ net/batman-adv/bat_iv_ogm.c | 94 +++++++++++++++++----- net/batman-adv/bat_v.c | 11 ++- net/batman-adv/bat_v_ogm.c | 42 ++++++++-- net/batman-adv/debugfs.c | 46 ++++++++++- net/batman-adv/debugfs.h | 11 +++ net/batman-adv/fragmentation.c | 2 + net/batman-adv/hard-interface.c | 51 ++++++++++-- net/batman-adv/originator.c | 4 +- net/batman-adv/originator.h | 4 +- net/batman-adv/routing.c | 10 +-- net/batman-adv/translation-table.c | 84 +++++++++++++++---- net/batman-adv/types.h | 18 +++-- net/core/netclassid_cgroup.c | 47 ++++++++--- net/core/sock.c | 5 +- net/ieee802154/nl_policy.c | 6 ++ net/ipv4/cipso_ipv4.c | 7 +- net/ipv4/gre_demux.c | 12 ++- net/ipv4/inet_connection_sock.c | 20 +++++ net/ipv4/inet_diag.c | 44 +++++----- net/ipv4/raw_diag.c | 5 +- net/ipv4/udp_diag.c | 5 +- net/ipv6/addrconf.c | 4 + net/ipv6/ipv6_sockglue.c | 10 ++- net/mac80211/rx.c | 2 +- net/netfilter/nfnetlink_cthelper.c | 2 + net/netfilter/nft_payload.c | 1 + net/netlink/af_netlink.c | 2 +- net/nfc/hci/core.c | 19 ++++- net/nfc/netlink.c | 3 + net/packet/af_packet.c | 13 +-- net/sched/sch_fq.c | 1 + net/sctp/sctp_diag.c | 8 +- net/smc/smc_ib.c | 2 + net/wireless/nl80211.c | 5 ++ net/wireless/reg.c | 2 +- tools/testing/ktest/ktest.pl | 2 +- 92 files changed, 764 insertions(+), 295 deletions(-)

4 years, 9 months

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[PATCH v2 1/2] clk: ingenic/jz4770: Exit with error if CGU init failed

by Paul Cercueil

Exit jz4770_cgu_init() if the 'cgu' pointer we get is NULL, since the pointer is passed as argument to functions later on. Fixes: 7a01c19007ad ("clk: Add Ingenic jz4770 CGU driver") Cc: stable(a)vger.kernel.org Signed-off-by: Paul Cercueil <paul(a)crapouillou.net> Reported-by: kbuild test robot <lkp(a)intel.com> Reported-by: Dan Carpenter <dan.carpenter(a)oracle.com> --- Notes: v2: Added Fixes: tag drivers/clk/ingenic/jz4770-cgu.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/clk/ingenic/jz4770-cgu.c b/drivers/clk/ingenic/jz4770-cgu.c index 956dd653a43d..c051ecba5cf8 100644 --- a/drivers/clk/ingenic/jz4770-cgu.c +++ b/drivers/clk/ingenic/jz4770-cgu.c @@ -432,8 +432,10 @@ static void __init jz4770_cgu_init(struct device_node *np) cgu = ingenic_cgu_new(jz4770_cgu_clocks, ARRAY_SIZE(jz4770_cgu_clocks), np); - if (!cgu) + if (!cgu) { pr_err("%s: failed to initialise CGU\n", __func__); + return; + } retval = ingenic_cgu_register_clocks(cgu); if (retval) -- 2.25.0

4 years, 9 months

2
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stable-rc/linux-5.4.y boot: 155 boots: 1 failed, 150 passed with 2 offline, 2 untried/unknown (v5.4.25-175-ge72abf1f11a9)

by kernelci.org bot

stable-rc/linux-5.4.y boot: 155 boots: 1 failed, 150 passed with 2 offline, 2 untried/unknown (v5.4.25-175-ge72abf1f11a9) Full Boot Summary: https://kernelci.org/boot/all/job/stable-rc/branch/linux-5.4.y/kernel/v5.4.… Full Build Summary: https://kernelci.org/build/stable-rc/branch/linux-5.4.y/kernel/v5.4.25-175-… Tree: stable-rc Branch: linux-5.4.y Git Describe: v5.4.25-175-ge72abf1f11a9 Git Commit: e72abf1f11a982a2a3fb555b5a9bd2eb2011dee8 Git URL: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git Tested: 100 unique boards, 26 SoC families, 21 builds out of 200 Boot Regressions Detected: arm: qcom_defconfig: gcc-8: qcom-apq8064-cm-qs600: lab-baylibre-seattle: failing since 41 days (last pass: v5.4.17-99-gbd0c6624a110 - first fail: v5.4.17-238-gbffcaa93483d) sama5_defconfig: gcc-8: at91-sama5d4_xplained: lab-baylibre: failing since 5 days (last pass: v5.4.25 - first fail: v5.4.25-58-gc72f49ecd87b) Boot Failure Detected: arm: sama5_defconfig: gcc-8: at91-sama5d4_xplained: 1 failed lab Offline Platforms: arm: multi_v7_defconfig: gcc-8 qcom-apq8064-cm-qs600: 1 offline lab qcom_defconfig: gcc-8 qcom-apq8064-cm-qs600: 1 offline lab --- For more info write to <info(a)kernelci.org>

4 years, 9 months

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stable-rc/linux-4.19.y boot: 145 boots: 1 failed, 135 passed with 2 offline, 7 untried/unknown (v4.19.109-136-gd078cac7a422)

by kernelci.org bot

stable-rc/linux-4.19.y boot: 145 boots: 1 failed, 135 passed with 2 offline, 7 untried/unknown (v4.19.109-136-gd078cac7a422) Full Boot Summary: https://kernelci.org/boot/all/job/stable-rc/branch/linux-4.19.y/kernel/v4.1… Full Build Summary: https://kernelci.org/build/stable-rc/branch/linux-4.19.y/kernel/v4.19.109-1… Tree: stable-rc Branch: linux-4.19.y Git Describe: v4.19.109-136-gd078cac7a422 Git Commit: d078cac7a42286ba7c97801a763fc42ad7baf5c1 Git URL: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git Tested: 84 unique boards, 24 SoC families, 20 builds out of 206 Boot Regressions Detected: arm: multi_v7_defconfig: gcc-8: sun8i-h3-libretech-all-h3-cc: lab-baylibre: new failure (last pass: v4.19.109-141-g8977fd00fd70) qcom_defconfig: gcc-8: qcom-apq8064-cm-qs600: lab-baylibre-seattle: failing since 41 days (last pass: v4.19.101 - first fail: v4.19.102-96-g0632821fe218) sama5_defconfig: gcc-8: at91-sama5d4_xplained: lab-baylibre: failing since 7 days (last pass: v4.19.108-87-g624c124960e8 - first fail: v4.19.109) arm64: defconfig: gcc-8: meson-gxl-s905x-khadas-vim: lab-baylibre: new failure (last pass: v4.19.109-141-g8977fd00fd70) Boot Failure Detected: arm: sama5_defconfig: gcc-8: at91-sama5d4_xplained: 1 failed lab Offline Platforms: arm: multi_v7_defconfig: gcc-8 qcom-apq8064-cm-qs600: 1 offline lab qcom_defconfig: gcc-8 qcom-apq8064-cm-qs600: 1 offline lab --- For more info write to <info(a)kernelci.org>

4 years, 9 months

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stable/linux-4.14.y boot: 80 boots: 2 failed, 73 passed with 5 untried/unknown (v4.14.174)

by kernelci.org bot

stable/linux-4.14.y boot: 80 boots: 2 failed, 73 passed with 5 untried/unknown (v4.14.174) Full Boot Summary: https://kernelci.org/boot/all/job/stable/branch/linux-4.14.y/kernel/v4.14.1… Full Build Summary: https://kernelci.org/build/stable/branch/linux-4.14.y/kernel/v4.14.174/ Tree: stable Branch: linux-4.14.y Git Describe: v4.14.174 Git Commit: 01364dad1d4577e27a57729d41053f661bb8a5b9 Git URL: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git Tested: 46 unique boards, 16 SoC families, 16 builds out of 201 Boot Regressions Detected: arm: sama5_defconfig: gcc-8: at91-sama5d4_xplained: lab-baylibre: failing since 57 days (last pass: v4.14.166 - first fail: v4.14.167) vexpress_defconfig: gcc-8: vexpress-v2p-ca15-tc1: lab-collabora: new failure (last pass: v4.14.173) lab-baylibre: new failure (last pass: v4.14.173) vexpress-v2p-ca9: lab-collabora: new failure (last pass: v4.14.173) lab-baylibre: new failure (last pass: v4.14.173) Boot Failures Detected: arm: sama5_defconfig: gcc-8: at91-sama5d4_xplained: 1 failed lab arm64: defconfig: gcc-8: meson-gxm-q200: 1 failed lab --- For more info write to <info(a)kernelci.org>

4 years, 9 months

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+ mm-slub-prevent-kmalloc_node-crashes-and-memory-leaks.patch added to -mm tree

by Andrew Morton

The patch titled Subject: mm, slub: prevent kmalloc_node crashes and memory leaks has been added to the -mm tree. Its filename is mm-slub-prevent-kmalloc_node-crashes-and-memory-leaks.patch This patch should soon appear at http://ozlabs.org/~akpm/mmots/broken-out/mm-slub-prevent-kmalloc_node-crash… and later at http://ozlabs.org/~akpm/mmotm/broken-out/mm-slub-prevent-kmalloc_node-crash… Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next and is updated there every 3-4 working days ------------------------------------------------------ From: Vlastimil Babka <vbabka(a)suse.cz> Subject: mm, slub: prevent kmalloc_node crashes and memory leaks Sachin reports [1] a crash in SLUB __slab_alloc(): BUG: Kernel NULL pointer dereference on read at 0x000073b0 Faulting instruction address: 0xc0000000003d55f4 Oops: Kernel access of bad area, sig: 11 [#1] LE PAGE_SIZE=64K MMU=Hash SMP NR_CPUS=2048 NUMA pSeries Modules linked in: CPU: 19 PID: 1 Comm: systemd Not tainted 5.6.0-rc2-next-20200218-autotest #1 NIP: c0000000003d55f4 LR: c0000000003d5b94 CTR: 0000000000000000 REGS: c0000008b37836d0 TRAP: 0300 Not tainted (5.6.0-rc2-next-20200218-autotest) MSR: 8000000000009033 <SF,EE,ME,IR,DR,RI,LE> CR: 24004844 XER: 00000000 CFAR: c00000000000dec4 DAR: 00000000000073b0 DSISR: 40000000 IRQMASK: 1 GPR00: c0000000003d5b94 c0000008b3783960 c00000000155d400 c0000008b301f500 GPR04: 0000000000000dc0 0000000000000002 c0000000003443d8 c0000008bb398620 GPR08: 00000008ba2f0000 0000000000000001 0000000000000000 0000000000000000 GPR12: 0000000024004844 c00000001ec52a00 0000000000000000 0000000000000000 GPR16: c0000008a1b20048 c000000001595898 c000000001750c18 0000000000000002 GPR20: c000000001750c28 c000000001624470 0000000fffffffe0 5deadbeef0000122 GPR24: 0000000000000001 0000000000000dc0 0000000000000002 c0000000003443d8 GPR28: c0000008b301f500 c0000008bb398620 0000000000000000 c00c000002287180 NIP [c0000000003d55f4] ___slab_alloc+0x1f4/0x760 LR [c0000000003d5b94] __slab_alloc+0x34/0x60 Call Trace: [c0000008b3783960] [c0000000003d5734] ___slab_alloc+0x334/0x760 (unreliable) [c0000008b3783a40] [c0000000003d5b94] __slab_alloc+0x34/0x60 [c0000008b3783a70] [c0000000003d6fa0] __kmalloc_node+0x110/0x490 [c0000008b3783af0] [c0000000003443d8] kvmalloc_node+0x58/0x110 [c0000008b3783b30] [c0000000003fee38] mem_cgroup_css_online+0x108/0x270 [c0000008b3783b90] [c000000000235aa8] online_css+0x48/0xd0 [c0000008b3783bc0] [c00000000023eaec] cgroup_apply_control_enable+0x2ec/0x4d0 [c0000008b3783ca0] [c000000000242318] cgroup_mkdir+0x228/0x5f0 [c0000008b3783d10] [c00000000051e170] kernfs_iop_mkdir+0x90/0xf0 [c0000008b3783d50] [c00000000043dc00] vfs_mkdir+0x110/0x230 [c0000008b3783da0] [c000000000441c90] do_mkdirat+0xb0/0x1a0 [c0000008b3783e20] [c00000000000b278] system_call+0x5c/0x68 This is a PowerPC platform with following NUMA topology: available: 2 nodes (0-1) node 0 cpus: node 0 size: 0 MB node 0 free: 0 MB node 1 cpus: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 node 1 size: 35247 MB node 1 free: 30907 MB node distances: node 0 1 0: 10 40 1: 40 10 possible numa nodes: 0-31 This only happens with a mmotm patch "mm/memcontrol.c: allocate shrinker_map on appropriate NUMA node" [2] which effectively calls kmalloc_node for each possible node. SLUB however only allocates kmem_cache_node on online N_NORMAL_MEMORY nodes, and relies on node_to_mem_node to return such valid node for other nodes since commit a561ce00b09e ("slub: fall back to node_to_mem_node() node if allocating on memoryless node"). This is however not true in this configuration where the _node_numa_mem_ array is not initialized for nodes 0 and 2-31, thus it contains zeroes and get_partial() ends up accessing non-allocated kmem_cache_node. A related issue was reported by Bharata (originally by Ramachandran) [3] where a similar PowerPC configuration, but with mainline kernel without patch [2] ends up allocating large amounts of pages by kmalloc-1k kmalloc-512. This seems to have the same underlying issue with node_to_mem_node() not behaving as expected, and might probably also lead to an infinite loop with CONFIG_SLUB_CPU_PARTIAL [4]. This patch should fix both issues by not relying on node_to_mem_node() anymore and instead simply falling back to NUMA_NO_NODE, when kmalloc_node(node) is attempted for a node that's not online, or has no usable memory. The "usable memory" condition is also changed from node_present_pages() to N_NORMAL_MEMORY node state, as that is exactly the condition that SLUB uses to allocate kmem_cache_node structures. The check in get_partial() is removed completely, as the checks in ___slab_alloc() are now sufficient to prevent get_partial() being reached with an invalid node. [1] https://lore.kernel.org/linux-next/3381CD91-AB3D-4773-BA04-E7A072A63968@lin… [2] https://lore.kernel.org/linux-mm/fff0e636-4c36-ed10-281c-8cdb0687c839@virtu… [3] https://lore.kernel.org/linux-mm/20200317092624.GB22538@in.ibm.com/ [4] https://lore.kernel.org/linux-mm/088b5996-faae-8a56-ef9c-5b567125ae54@suse.… Link: http://lkml.kernel.org/r/20200320115533.9604-1-vbabka@suse.cz Fixes: a561ce00b09e ("slub: fall back to node_to_mem_node() node if allocating on memoryless node") Signed-off-by: Vlastimil Babka <vbabka(a)suse.cz> Reported-by: Sachin Sant <sachinp(a)linux.vnet.ibm.com> Tested-by: Sachin Sant <sachinp(a)linux.vnet.ibm.com> Reported-by: PUVICHAKRAVARTHY RAMACHANDRAN <puvichakravarthy(a)in.ibm.com> Tested-by: Bharata B Rao <bharata(a)linux.ibm.com> Debugged-by: Srikar Dronamraju <srikar(a)linux.vnet.ibm.com> Reviewed-by: Srikar Dronamraju <srikar(a)linux.vnet.ibm.com> Cc: Mel Gorman <mgorman(a)techsingularity.net> Cc: Michael Ellerman <mpe(a)ellerman.id.au> Cc: Michal Hocko <mhocko(a)kernel.org> Cc: Christopher Lameter <cl(a)linux.com> Cc: linuxppc-dev(a)lists.ozlabs.org Cc: Joonsoo Kim <iamjoonsoo.kim(a)lge.com> Cc: Pekka Enberg <penberg(a)kernel.org> Cc: David Rientjes <rientjes(a)google.com> Cc: Kirill Tkhai <ktkhai(a)virtuozzo.com> Cc: Vlastimil Babka <vbabka(a)suse.cz> Cc: Nathan Lynch <nathanl(a)linux.ibm.com> Cc: <stable(a)vger.kernel.org> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> --- mm/slub.c | 26 +++++++++++++++++--------- 1 file changed, 17 insertions(+), 9 deletions(-) --- a/mm/slub.c~mm-slub-prevent-kmalloc_node-crashes-and-memory-leaks +++ a/mm/slub.c @@ -1973,8 +1973,6 @@ static void *get_partial(struct kmem_cac if (node == NUMA_NO_NODE) searchnode = numa_mem_id(); - else if (!node_present_pages(node)) - searchnode = node_to_mem_node(node); object = get_partial_node(s, get_node(s, searchnode), c, flags); if (object || node != NUMA_NO_NODE) @@ -2563,17 +2561,27 @@ static void *___slab_alloc(struct kmem_c struct page *page; page = c->page; - if (!page) + if (!page) { + /* + * if the node is not online or has no normal memory, just + * ignore the node constraint + */ + if (unlikely(node != NUMA_NO_NODE && + !node_state(node, N_NORMAL_MEMORY))) + node = NUMA_NO_NODE; goto new_slab; + } redo: if (unlikely(!node_match(page, node))) { - int searchnode = node; - - if (node != NUMA_NO_NODE && !node_present_pages(node)) - searchnode = node_to_mem_node(node); - - if (unlikely(!node_match(page, searchnode))) { + /* + * same as above but node_match() being false already + * implies node != NUMA_NO_NODE + */ + if (!node_state(node, N_NORMAL_MEMORY)) { + node = NUMA_NO_NODE; + goto redo; + } else { stat(s, ALLOC_NODE_MISMATCH); deactivate_slab(s, page, c->freelist, c); goto new_slab; _ Patches currently in -mm which might be from vbabka(a)suse.cz are mm-slub-prevent-kmalloc_node-crashes-and-memory-leaks.patch revert-topology-add-support-for-node_to_mem_node-to-determine-the-fallback-node.patch mm-compaction-fully-assume-capture-is-not-null-in-compact_zone_order.patch mm-hugetlb-remove-unnecessary-memory-fetch-in-pageheadhuge.patch

4 years, 9 months

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Linux-stable-mirror March 2020