Linux-stable-mirror June 2021

linux-stable-mirror@lists.linaro.org

307 participants
1448 discussions

[PATCH v2 1/2] blk-zoned: allow zone management send operations without CAP_SYS_ADMIN

by Niklas Cassel

From: Niklas Cassel <niklas.cassel(a)wdc.com> Zone management send operations (BLKRESETZONE, BLKOPENZONE, BLKCLOSEZONE and BLKFINISHZONE) should be allowed under the same permissions as write(). (write() does not require CAP_SYS_ADMIN). Additionally, other ioctls like BLKSECDISCARD and BLKZEROOUT only check if the fd was successfully opened with FMODE_WRITE. (They do not require CAP_SYS_ADMIN). Currently, zone management send operations require both CAP_SYS_ADMIN and that the fd was successfully opened with FMODE_WRITE. Remove the CAP_SYS_ADMIN requirement, so that zone management send operations match the access control requirement of write(), BLKSECDISCARD and BLKZEROOUT. Fixes: 3ed05a987e0f ("blk-zoned: implement ioctls") Signed-off-by: Niklas Cassel <niklas.cassel(a)wdc.com> Reviewed-by: Damien Le Moal <damien.lemoal(a)wdc.com> Cc: stable(a)vger.kernel.org # v4.10+ --- Changes since v1: - Pick up tag from Damien. - Add fixes tag and CC stable. Note to backporter: Function was added as blkdev_reset_zones_ioctl() in v4.10. Function was renamed to blkdev_zone_mgmt_ioctl() in v5.5. The patch is valid both before and after the function rename. block/blk-zoned.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/block/blk-zoned.c b/block/blk-zoned.c index 250cb76ee615..0789e6e9f7db 100644 --- a/block/blk-zoned.c +++ b/block/blk-zoned.c @@ -349,9 +349,6 @@ int blkdev_zone_mgmt_ioctl(struct block_device *bdev, fmode_t mode, if (!blk_queue_is_zoned(q)) return -ENOTTY; - if (!capable(CAP_SYS_ADMIN)) - return -EACCES; - if (!(mode & FMODE_WRITE)) return -EBADF; -- 2.31.1

3 years, 6 months

[PATCH v4.4 00/10] security fixes backports

by Johannes Berg

One or two of the patches here were already applied since they applied cleanly, but I'm resending the whole set for review now anyway. johannes

3 years, 6 months

[PATCH v4.9 00/10] wireless security fixes backports

by Johannes Berg

One or two of the patches here were already applied since they applied cleanly, but I'm resending the whole set for review now anyway. johannes

3 years, 6 months

[PATCH v4.14 00/10] wireless security fixes backports

by Johannes Berg

Some of these patches here were already applied since they applied cleanly, but I'm resending the whole set for review now anyway. johannes

3 years, 6 months

[PATCH v3 | stable v5.10 0/3] x86/kvm: fixes for hibernation

by Krzysztof Kozlowski

Hi, This is version 2 of a backport for v5.10. Changes since v2: 1. Rebased v3 of v5.4 version, I kept numbering to be consistent. 2. The context in patch 1/3 had to be adjusted. The first patch specifically fixes bug aftert 2nd resume: BUG: Bad page state in process dbus-daemon pfn:18b01 page:ffffea000062c040 refcount:0 mapcount:0 mapping:0000000000000000 index:0x1 compound_mapcount: -30591 flags: 0xfffffc0078141(locked|error|workingset|writeback|head|mappedtodisk|reclaim) raw: 000fffffc0078141 dead0000000002d0 dead000000000100 0000000000000000 raw: 0000000000000001 0000000000000000 00000000ffffffff 0000000000000000 page dumped because: PAGE_FLAGS_CHECK_AT_PREP flag set bad because of flags: 0x78141(locked|error|workingset|writeback|head|mappedtodisk|reclaim) Best regards, Krzysztof Vitaly Kuznetsov (3): x86/kvm: Teardown PV features on boot CPU as well x86/kvm: Disable kvmclock on all CPUs on shutdown x86/kvm: Disable all PV features on crash arch/x86/include/asm/kvm_para.h | 10 +--- arch/x86/kernel/kvm.c | 92 ++++++++++++++++++++++++--------- arch/x86/kernel/kvmclock.c | 26 +--------- 3 files changed, 72 insertions(+), 56 deletions(-) -- 2.27.0

3 years, 6 months

[RESEND PATCH] nfc: fix NULL ptr dereference in llcp_sock_getname() after failed connect

by Krzysztof Kozlowski

It's possible to trigger NULL pointer dereference by local unprivileged user, when calling getsockname() after failed bind() (e.g. the bind fails because LLCP_SAP_MAX used as SAP): BUG: kernel NULL pointer dereference, address: 0000000000000000 CPU: 1 PID: 426 Comm: llcp_sock_getna Not tainted 5.13.0-rc2-next-20210521+ #9 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.14.0-1 04/01/2014 Call Trace: llcp_sock_getname+0xb1/0xe0 __sys_getpeername+0x95/0xc0 ? lockdep_hardirqs_on_prepare+0xd5/0x180 ? syscall_enter_from_user_mode+0x1c/0x40 __x64_sys_getpeername+0x11/0x20 do_syscall_64+0x36/0x70 entry_SYSCALL_64_after_hwframe+0x44/0xae This can be reproduced with Syzkaller C repro (bind followed by getpeername): https://syzkaller.appspot.com/x/repro.c?x=14def446e00000 Cc: <stable(a)vger.kernel.org> Fixes: d646960f7986 ("NFC: Initial LLCP support") Reported-by: syzbot+80fb126e7f7d8b1a5914(a)syzkaller.appspotmail.com Reported-by: butt3rflyh4ck <butterflyhuangxx(a)gmail.com> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski(a)canonical.com> --- Not extensively tested yet but fixes this particular issue. Reason for resend: 1. Keep it public. --- net/nfc/llcp_sock.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/net/nfc/llcp_sock.c b/net/nfc/llcp_sock.c index 53dbe733f998..6cfd30fc0798 100644 --- a/net/nfc/llcp_sock.c +++ b/net/nfc/llcp_sock.c @@ -110,6 +110,7 @@ static int llcp_sock_bind(struct socket *sock, struct sockaddr *addr, int alen) if (!llcp_sock->service_name) { nfc_llcp_local_put(llcp_sock->local); llcp_sock->local = NULL; + llcp_sock->dev = NULL; ret = -ENOMEM; goto put_dev; } @@ -119,6 +120,7 @@ static int llcp_sock_bind(struct socket *sock, struct sockaddr *addr, int alen) llcp_sock->local = NULL; kfree(llcp_sock->service_name); llcp_sock->service_name = NULL; + llcp_sock->dev = NULL; ret = -EADDRINUSE; goto put_dev; } -- 2.27.0

3 years, 6 months

[PATCH 4.9 00/66] 4.9.271-rc1 review

by Greg Kroah-Hartman

This is the start of the stable review cycle for the 4.9.271 release. There are 66 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 Wed, 02 Jun 2021 13:06:20 +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-4.9.271-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 4.9.271-rc1 Chunfeng Yun <chunfeng.yun(a)mediatek.com> usb: core: reduce power-on-good delay time of root hub Mike Kravetz <mike.kravetz(a)oracle.com> hugetlbfs: hugetlb_fault_mutex_hash() cleanup Randy Dunlap <rdunlap(a)infradead.org> MIPS: ralink: export rt_sysc_membase for rt2880_wdt.c Randy Dunlap <rdunlap(a)infradead.org> MIPS: alchemy: xxs1500: add gpio-au1000.h header file Taehee Yoo <ap420073(a)gmail.com> sch_dsmark: fix a NULL deref in qdisc_reset() Dan Carpenter <dan.carpenter(a)oracle.com> scsi: libsas: Use _safe() loop in sas_resume_port() Dan Carpenter <dan.carpenter(a)oracle.com> ASoC: cs35l33: fix an error code in probe() Dan Carpenter <dan.carpenter(a)oracle.com> staging: emxx_udc: fix loop in _nbu2ss_nuke() Taehee Yoo <ap420073(a)gmail.com> mld: fix panic in mld_newpack() Zhen Lei <thunder.leizhen(a)huawei.com> net: bnx2: Fix error return code in bnx2_init_board() Christophe JAILLET <christophe.jaillet(a)wanadoo.fr> net: mdio: octeon: Fix some double free issues Christophe JAILLET <christophe.jaillet(a)wanadoo.fr> net: mdio: thunder: Fix a double free issue in the .remove function Christophe JAILLET <christophe.jaillet(a)wanadoo.fr> net: netcp: Fix an error message xinhui pan <xinhui.pan(a)amd.com> drm/amdgpu: Fix a use-after-free Andy Shevchenko <andriy.shevchenko(a)linux.intel.com> platform/x86: intel_punit_ipc: Append MODULE_DEVICE_TABLE for ACPI Josef Bacik <josef(a)toxicpanda.com> btrfs: do not BUG_ON in link_to_fixup_dir Peter Zijlstra <peterz(a)infradead.org> openrisc: Define memory barrier mb Matt Wang <wwentao(a)vmware.com> scsi: BusLogic: Fix 64-bit system enumeration error for Buslogic Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> media: gspca: properly check for errors in po1030_probe() Alaa Emad <alaaemadhossney.ae(a)gmail.com> media: dvb: Add check on sp8870_readreg return Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> libertas: register sysfs groups properly Phillip Potter <phil(a)philpotter.co.uk> dmaengine: qcom_hidma: comment platform_driver_register call Phillip Potter <phil(a)philpotter.co.uk> isdn: mISDNinfineon: check/cleanup ioremap failure correctly in setup_io Atul Gopinathan <atulgopinathan(a)gmail.com> ALSA: sb8: Add a comment note regarding an unused pointer Tom Seewald <tseewald(a)gmail.com> char: hpet: add checks after calling ioremap Du Cheng <ducheng2(a)gmail.com> net: caif: remove BUG_ON(dev == NULL) in caif_xmit Anirudh Rayabharam <mail(a)anirudhrb.com> net: fujitsu: fix potential null-ptr-deref Atul Gopinathan <atulgopinathan(a)gmail.com> serial: max310x: unregister uart driver in case of failure and abort Kai-Heng Feng <kai.heng.feng(a)canonical.com> platform/x86: hp_accel: Avoid invoking _INI to speed up resume Felix Fietkau <nbd(a)nbd.name> perf jevents: Fix getting maximum number of fds Jean Delvare <jdelvare(a)suse.de> i2c: i801: Don't generate an interrupt on bus reset Krzysztof Kozlowski <krzysztof.kozlowski(a)canonical.com> i2c: s3c2410: fix possible NULL pointer deref on read message after write Xin Long <lucien.xin(a)gmail.com> tipc: skb_linearize the head skb when reassembling msgs Hoang Le <hoang.h.le(a)dektech.com.au> Revert "net:tipc: Fix a double free in tipc_sk_mcast_rcv" Vladyslav Tarasiuk <vladyslavt(a)nvidia.com> net/mlx4: Fix EEPROM dump support Zhang Xiaoxu <zhangxiaoxu5(a)huawei.com> NFSv4: Fix v4.0/v4.1 SEEK_DATA return -ENOTSUPP when set NFS_V4_2 config Trond Myklebust <trond.myklebust(a)hammerspace.com> NFS: Don't corrupt the value of pg_bytes_written in nfs_do_recoalesce() Dan Carpenter <dan.carpenter(a)oracle.com> NFS: fix an incorrect limit in filelayout_decode_layout() Thadeu Lima de Souza Cascardo <cascardo(a)canonical.com> Bluetooth: cmtp: fix file refcount when cmtp_attach_device fails William A. Kennington III <wak(a)google.com> spi: Fix use-after-free with devm_spi_alloc_* Pavel Skripkin <paskripkin(a)gmail.com> net: usb: fix memory leak in smsc75xx_bind Zolton Jheng <s6668c2t(a)gmail.com> USB: serial: pl2303: add device id for ADLINK ND-6530 GC Dominik Andreas Schorpp <dominik.a.schorpp(a)ids.de> USB: serial: ftdi_sio: add IDs for IDS GmbH Products Daniele Palmas <dnlplm(a)gmail.com> USB: serial: option: add Telit LE910-S1 compositions 0x7010, 0x7011 Sean MacLennan <seanm(a)seanm.ca> USB: serial: ti_usb_3410_5052: add startech.com device id Zheyu Ma <zheyuma97(a)gmail.com> serial: rp2: use 'request_firmware' instead of 'request_firmware_nowait' Johan Hovold <johan(a)kernel.org> USB: trancevibrator: fix control-request direction YueHaibing <yuehaibing(a)huawei.com> iio: adc: ad7793: Add missing error code in ad7793_setup() Lucas Stankus <lucas.p.stankus(a)gmail.com> staging: iio: cdc: ad7746: avoid overwrite of num_channels Alexander Usyskin <alexander.usyskin(a)intel.com> mei: request autosuspend after sending rx flow control Dongliang Mu <mudongliangabcd(a)gmail.com> misc/uss720: fix memory leak in uss720_probe Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> kgdb: fix gcc-11 warnings harder Mikulas Patocka <mpatocka(a)redhat.com> dm snapshot: properly fix a crash when an origin has no snapshots Sriram R <srirrama(a)codeaurora.org> ath10k: Validate first subframe of A-MSDU before processing the list Johannes Berg <johannes.berg(a)intel.com> mac80211: check defrag PN against current frame Mathy Vanhoef <Mathy.Vanhoef(a)kuleuven.be> cfg80211: mitigate A-MSDU aggregation attacks Mathy Vanhoef <Mathy.Vanhoef(a)kuleuven.be> mac80211: prevent mixed key and fragment cache attacks Mathy Vanhoef <Mathy.Vanhoef(a)kuleuven.be> mac80211: assure all fragments are encrypted Johan Hovold <johan(a)kernel.org> net: hso: fix control-request directions Kees Cook <keescook(a)chromium.org> proc: Check /proc/$pid/attr/ writes against file opener Anna Schumaker <Anna.Schumaker(a)Netapp.com> NFSv4: Fix a NULL pointer dereference in pnfs_mark_matching_lsegs_return() Dongliang Mu <mudongliangabcd(a)gmail.com> NFC: nci: fix memory leak in nci_allocate_device Mark Tomlinson <mark.tomlinson(a)alliedtelesis.co.nz> netfilter: x_tables: Use correct memory barriers. Andy Shevchenko <andriy.shevchenko(a)linux.intel.com> scripts: switch explicitly to Python 3 Finn Behrens <me(a)kloenk.de> tweewide: Fix most Shebang lines Stephen Brennan <stephen.s.brennan(a)oracle.com> mm, vmstat: drop zone->lock in /proc/pagetypeinfo ------------- Diffstat: Documentation/sphinx/parse-headers.pl | 2 +- Documentation/target/tcm_mod_builder.py | 2 +- Documentation/trace/postprocess/decode_msr.py | 2 +- .../postprocess/trace-pagealloc-postprocess.pl | 2 +- .../trace/postprocess/trace-vmscan-postprocess.pl | 2 +- Makefile | 4 +- arch/ia64/scripts/unwcheck.py | 2 +- arch/mips/alchemy/board-xxs1500.c | 1 + arch/mips/ralink/of.c | 2 + arch/openrisc/include/asm/barrier.h | 9 ++ drivers/char/hpet.c | 4 + drivers/dma/qcom/hidma_mgmt.c | 14 +++ drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 1 + drivers/i2c/busses/i2c-i801.c | 6 +- drivers/i2c/busses/i2c-s3c2410.c | 3 + drivers/iio/adc/ad7793.c | 1 + drivers/isdn/hardware/mISDN/mISDNinfineon.c | 24 +++-- drivers/md/dm-snap.c | 2 +- drivers/media/dvb-frontends/sp8870.c | 4 +- drivers/media/usb/gspca/m5602/m5602_po1030.c | 10 +- drivers/misc/kgdbts.c | 3 +- drivers/misc/lis3lv02d/lis3lv02d.h | 1 + drivers/misc/mei/interrupt.c | 3 + drivers/net/caif/caif_serial.c | 1 - drivers/net/ethernet/broadcom/bnx2.c | 2 +- drivers/net/ethernet/fujitsu/fmvj18x_cs.c | 5 + drivers/net/ethernet/mellanox/mlx4/en_ethtool.c | 4 +- drivers/net/ethernet/mellanox/mlx4/port.c | 107 ++++++++++++++++++++- drivers/net/ethernet/ti/netcp_core.c | 4 +- drivers/net/phy/mdio-octeon.c | 2 - drivers/net/phy/mdio-thunder.c | 1 - drivers/net/usb/hso.c | 4 +- drivers/net/usb/smsc75xx.c | 8 +- drivers/net/wireless/ath/ath10k/htt_rx.c | 61 +++++++++++- drivers/net/wireless/marvell/libertas/mesh.c | 28 +----- drivers/platform/x86/hp_accel.c | 22 ++++- drivers/platform/x86/intel_punit_ipc.c | 1 + drivers/scsi/BusLogic.c | 6 +- drivers/scsi/BusLogic.h | 2 +- drivers/scsi/libsas/sas_port.c | 4 +- drivers/spi/spi.c | 9 +- drivers/staging/emxx_udc/emxx_udc.c | 4 +- drivers/staging/iio/cdc/ad7746.c | 1 - drivers/tty/serial/max310x.c | 6 +- drivers/tty/serial/rp2.c | 52 ++++------ drivers/usb/core/hub.h | 6 +- drivers/usb/misc/trancevibrator.c | 4 +- drivers/usb/misc/uss720.c | 1 + drivers/usb/serial/ftdi_sio.c | 3 + drivers/usb/serial/ftdi_sio_ids.h | 7 ++ drivers/usb/serial/option.c | 4 + drivers/usb/serial/pl2303.c | 1 + drivers/usb/serial/pl2303.h | 1 + drivers/usb/serial/ti_usb_3410_5052.c | 3 + fs/btrfs/tree-log.c | 2 - fs/hugetlbfs/inode.c | 4 +- fs/nfs/filelayout/filelayout.c | 2 +- fs/nfs/nfs4file.c | 2 +- fs/nfs/pagelist.c | 12 +-- fs/nfs/pnfs.c | 17 ++-- fs/proc/base.c | 4 + include/linux/hugetlb.h | 2 +- include/linux/netfilter/x_tables.h | 2 +- include/linux/spi/spi.h | 3 + include/net/nfc/nci_core.h | 1 + mm/hugetlb.c | 8 +- mm/vmstat.c | 3 + net/bluetooth/cmtp/core.c | 5 + net/ipv6/mcast.c | 3 - net/mac80211/ieee80211_i.h | 12 ++- net/mac80211/key.c | 7 ++ net/mac80211/key.h | 2 + net/mac80211/rx.c | 34 ++++--- net/mac80211/wpa.c | 13 ++- net/netfilter/x_tables.c | 3 + net/nfc/nci/core.c | 1 + net/nfc/nci/hci.c | 5 + net/sched/sch_dsmark.c | 3 +- net/tipc/msg.c | 9 +- net/tipc/socket.c | 5 +- net/wireless/util.c | 3 + scripts/analyze_suspend.py | 2 +- scripts/bloat-o-meter | 2 +- scripts/bootgraph.pl | 2 +- scripts/checkincludes.pl | 2 +- scripts/checkstack.pl | 2 +- scripts/config | 2 +- scripts/diffconfig | 2 +- scripts/dtc/dt_to_config | 2 +- scripts/extract_xc3028.pl | 2 +- scripts/get_dvb_firmware | 2 +- scripts/markup_oops.pl | 2 +- scripts/profile2linkerlist.pl | 2 +- scripts/show_delta | 2 +- scripts/stackdelta | 2 +- scripts/tracing/draw_functrace.py | 2 +- sound/isa/sb/sb8.c | 6 +- sound/soc/codecs/cs35l33.c | 1 + tools/kvm/kvm_stat/kvm_stat | 2 +- tools/perf/pmu-events/jevents.c | 2 +- tools/perf/python/tracepoint.py | 2 +- tools/perf/python/twatch.py | 2 +- tools/perf/scripts/python/sched-migration.py | 2 +- tools/perf/util/setup.py | 2 +- tools/testing/ktest/compare-ktest-sample.pl | 2 +- 105 files changed, 473 insertions(+), 213 deletions(-)

3 years, 6 months

+ mm-hugetlb-fix-simple-resv_huge_pages-underflow-on-uffdio_copy.patch added to -mm tree

by akpm＠linux-foundation.org

The patch titled Subject: mm, hugetlb: fix simple resv_huge_pages underflow on UFFDIO_COPY has been added to the -mm tree. Its filename is mm-hugetlb-fix-simple-resv_huge_pages-underflow-on-uffdio_copy.patch This patch should soon appear at https://ozlabs.org/~akpm/mmots/broken-out/mm-hugetlb-fix-simple-resv_huge_p… and later at https://ozlabs.org/~akpm/mmotm/broken-out/mm-hugetlb-fix-simple-resv_huge_p… 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: Mina Almasry <almasrymina(a)google.com> Subject: mm, hugetlb: fix simple resv_huge_pages underflow on UFFDIO_COPY The userfaultfd hugetlb tests cause a resv_huge_pages underflow. This happens when hugetlb_mcopy_atomic_pte() is called with !is_continue on an index for which we already have a page in the cache. When this happens, we allocate a second page, double consuming the reservation, and then fail to insert the page into the cache and return -EEXIST. To fix this, we first check if there is a page in the cache which already consumed the reservation, and return -EEXIST immediately if so. There is still a rare condition where we fail to copy the page contents AND race with a call for hugetlb_no_page() for this index and again we will underflow resv_huge_pages. That is fixed in a more complicated patch not targeted for -stable. Test: Hacked the code locally such that resv_huge_pages underflows produce a warning, then: ./tools/testing/selftests/vm/userfaultfd hugetlb_shared 10 2 /tmp/kokonut_test/huge/userfaultfd_test && echo test success ./tools/testing/selftests/vm/userfaultfd hugetlb 10 2 /tmp/kokonut_test/huge/userfaultfd_test && echo test success Both tests succeed and produce no warnings. After the test runs number of free/resv hugepages is correct. [mike.kravetz(a)oracle.com: changelog fixes] Link: https://lkml.kernel.org/r/20210528004649.85298-1-almasrymina@google.com Signed-off-by: Mina Almasry <almasrymina(a)google.com> Reviewed-by: Mike Kravetz <mike.kravetz(a)oracle.com> Cc: Axel Rasmussen <axelrasmussen(a)google.com> Cc: Peter Xu <peterx(a)redhat.com> Cc: <stable(a)vger.kernel.org> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> --- mm/hugetlb.c | 14 ++++++++++++-- 1 file changed, 12 insertions(+), 2 deletions(-) --- a/mm/hugetlb.c~mm-hugetlb-fix-simple-resv_huge_pages-underflow-on-uffdio_copy +++ a/mm/hugetlb.c @@ -4889,10 +4889,20 @@ int hugetlb_mcopy_atomic_pte(struct mm_s if (!page) goto out; } else if (!*pagep) { - ret = -ENOMEM; + /* If a page already exists, then it's UFFDIO_COPY for + * a non-missing case. Return -EEXIST. + */ + if (vm_shared && + hugetlbfs_pagecache_present(h, dst_vma, dst_addr)) { + ret = -EEXIST; + goto out; + } + page = alloc_huge_page(dst_vma, dst_addr, 0); - if (IS_ERR(page)) + if (IS_ERR(page)) { + ret = -ENOMEM; goto out; + } ret = copy_huge_page_from_user(page, (const void __user *) src_addr, _ Patches currently in -mm which might be from almasrymina(a)google.com are mm-hugetlb-fix-simple-resv_huge_pages-underflow-on-uffdio_copy.patch mm-hugetlb-fix-racy-resv_huge_pages-underflow-on-uffdio_copy.patch

3 years, 6 months

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