May 2020 - Linux-stable-mirror

by Greg Kroah-Hartman

This is the start of the stable review cycle for the 5.6.11 release. There are 73 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, 06 May 2020 16:52:55 +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-5.6.11-rc1… or in the git tree and branch at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-5.6.y and the diffstat can be found below. thanks, greg k-h ------------- Pseudo-Shortlog of commits: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Linux 5.6.11-rc1 Jens Axboe <axboe(a)kernel.dk> io_uring: statx must grab the file table for valid fd Vincenzo Frascino <vincenzo.frascino(a)arm.com> arm64: vdso: Add -fasynchronous-unwind-tables to cflags Andy Shevchenko <andriy.shevchenko(a)linux.intel.com> dmaengine: dmatest: Fix process hang when reading 'wait' parameter Matt Roper <matthew.d.roper(a)intel.com> drm/i915: Use proper fault mask in interrupt postinstall too Andy Shevchenko <andriy.shevchenko(a)linux.intel.com> dmaengine: dmatest: Fix iteration non-stop logic Andreas Gruenbacher <agruenba(a)redhat.com> nfs: Fix potential posix_acl refcnt leak in nfs3_set_acl Xiyu Yang <xiyuyang19(a)fudan.edu.cn> drm/i915/selftests: Fix i915_address_space refcnt leak Niklas Cassel <niklas.cassel(a)wdc.com> nvme: prevent double free in nvme_alloc_ns() error handling David Howells <dhowells(a)redhat.com> Fix use after free in get_tree_bdev() Arnd Bergmann <arnd(a)arndb.de> ALSA: opti9xx: shut up gcc-10 range warning ryan_chen <ryan_chen(a)aspeedtech.com> i2c: aspeed: Avoid i2c interrupt status clear race condition. Suravee Suthikulpanit <suravee.suthikulpanit(a)amd.com> iommu/amd: Fix legacy interrupt remapping for x2APIC-enabled system Lu Baolu <baolu.lu(a)linux.intel.com> iommu/vt-d: Use right Kconfig option name Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> iommu: Properly export iommu_group_get_for_dev() David Disseldorp <ddiss(a)suse.de> scsi: target/iblock: fix WRITE SAME zeroing Dave Jiang <dave.jiang(a)intel.com> dmaengine: fix channel index enumeration Grygorii Strashko <grygorii.strashko(a)ti.com> dmaengine: ti: k3-psil: fix deadlock on error path Tang Bin <tangbin(a)cmss.chinamobile.com> iommu/qcom: Fix local_base status check Sean Christopherson <sean.j.christopherson(a)intel.com> vfio/type1: Fix VA->PA translation for PFNMAP VMAs in vaddr_get_pfn() Yan Zhao <yan.y.zhao(a)intel.com> vfio: avoid possible overflow in vfio_iommu_type1_pin_pages YueHaibing <yuehaibing(a)huawei.com> dmaengine: hisilicon: Fix build error without PCI_MSI Rayagonda Kokatanur <rayagonda.kokatanur(a)broadcom.com> i2c: iproc: generate stop event for slave writes Dan Carpenter <dan.carpenter(a)oracle.com> RDMA/cm: Fix an error check in cm_alloc_id_priv() Jason Gunthorpe <jgg(a)ziepe.ca> RDMA/cm: Fix ordering of xa_alloc_cyclic() in ib_create_cm_id() Leon Romanovsky <leon(a)kernel.org> RDMA/core: Fix race between destroy and release FD object Leon Romanovsky <leon(a)kernel.org> RDMA/core: Fix overwriting of uobj in case of error Leon Romanovsky <leon(a)kernel.org> RDMA/core: Prevent mixed use of FDs between shared ufiles Jason Gunthorpe <jgg(a)ziepe.ca> RDMA/siw: Fix potential siw_mem refcnt leak in siw_fastreg_mr() Alaa Hleihel <alaa(a)mellanox.com> RDMA/mlx4: Initialize ib_spec on the stack Jason Gunthorpe <jgg(a)ziepe.ca> RDMA/uverbs: Fix a race with disassociate and exit_mmap() Aharon Landau <aharonl(a)mellanox.com> RDMA/mlx5: Set GRH fields in query QP on RoCE Martin Wilck <mwilck(a)suse.com> scsi: qla2xxx: check UNLOADING before posting async work Martin Wilck <mwilck(a)suse.com> scsi: qla2xxx: set UNLOADING before waiting for session deletion Christoph Hellwig <hch(a)lst.de> block: remove the bd_openers checks in blk_drop_partitions Russell King <rmk+kernel(a)armlinux.org.uk> ARM: dts: imx6qdl-sr-som-ti: indicate powering off wifi is safe Gabriel Krisman Bertazi <krisman(a)collabora.com> dm multipath: use updated MPATHF_QUEUE_IO on mapping for bio-based mpath Mikulas Patocka <mpatocka(a)redhat.com> dm writecache: fix data corruption when reloading the target Sunwook Eom <speed.eom(a)samsung.com> dm verity fec: fix hash block number in verity_fec_decode Dexuan Cui <decui(a)microsoft.com> PM: hibernate: Freeze kernel threads in software_resume() Kai-Heng Feng <kai.heng.feng(a)canonical.com> PM: ACPI: Output correct message on target power state Sudip Mukherjee <sudipm.mukherjee(a)gmail.com> IB/rdmavt: Always return ERR_PTR from rvt_create_mmap_info() Paul Moore <paul(a)paul-moore.com> selinux: properly handle multiple messages in selinux_netlink_send() Al Viro <viro(a)zeniv.linux.org.uk> dlmfs_file_write(): fix the bogosity in handling non-zero *ppos Dexuan Cui <decui(a)microsoft.com> Drivers: hv: vmbus: Fix Suspend-to-Idle for Generation-2 VM Dexuan Cui <decui(a)microsoft.com> x86/hyperv: Suspend/resume the VP assist page for hibernation Dan Carpenter <dan.carpenter(a)oracle.com> i2c: amd-mp2-pci: Fix Oops in amd_mp2_pci_init() error handling Takashi Iwai <tiwai(a)suse.de> ALSA: pcm: oss: Place the plugin buffer overflow checks correctly Vasily Khoruzhick <anarsoul(a)gmail.com> ALSA: line6: Fix POD HD500 audio playback Wu Bo <wubo40(a)huawei.com> ALSA: hda/hdmi: fix without unlocked before return Takashi Iwai <tiwai(a)suse.de> ALSA: usb-audio: Correct a typo of NuPrime DAC-10 USB ID Hui Wang <hui.wang(a)canonical.com> ALSA: hda/realtek - Two front mics on a Lenovo ThinkCenter Iuliana Prodan <iuliana.prodan(a)nxp.com> crypto: caam - fix the address of the last entry of S/G Martin Blumenstingl <martin.blumenstingl(a)googlemail.com> mmc: meson-mx-sdio: remove the broken ->card_busy() op Martin Blumenstingl <martin.blumenstingl(a)googlemail.com> mmc: meson-mx-sdio: Set MMC_CAP_WAIT_WHILE_BUSY Veerabhadrarao Badiganti <vbadigan(a)codeaurora.org> mmc: sdhci-msm: Enable host capabilities pertains to R1b response Adrian Hunter <adrian.hunter(a)intel.com> mmc: sdhci-pci: Fix eMMC driver strength for BYT-based controllers Marek Behún <marek.behun(a)nic.cz> mmc: sdhci-xenon: fix annoying 1.8V regulator warning Douglas Anderson <dianders(a)chromium.org> mmc: cqhci: Avoid false "cqhci: CQE stuck on" by not open-coding timeout loop Qu Wenruo <wqu(a)suse.com> btrfs: transaction: Avoid deadlock due to bad initialization timing of fs_info::journal_info Filipe Manana <fdmanana(a)suse.com> btrfs: fix partial loss of prealloc extent past i_size after fsync Xiyu Yang <xiyuyang19(a)fudan.edu.cn> btrfs: fix block group leak when removing fails Xiyu Yang <xiyuyang19(a)fudan.edu.cn> btrfs: fix transaction leak in btrfs_recover_relocation Olga Kornievskaia <olga.kornievskaia(a)gmail.com> NFSv4.1: fix handling of backchannel binding in BIND_CONN_TO_SESSION Vasily Averin <vvs(a)virtuozzo.com> drm/qxl: qxl_release use after free Vasily Averin <vvs(a)virtuozzo.com> drm/qxl: qxl_release leak in qxl_hw_surface_alloc() Vasily Averin <vvs(a)virtuozzo.com> drm/qxl: qxl_release leak in qxl_draw_dirty_fb() Chris Wilson <chris(a)chris-wilson.co.uk> drm/i915/gt: Check cacheline is valid before acquiring Chris Wilson <chris(a)chris-wilson.co.uk> drm/i915/gem: Hold obj->vma.lock over for_each_ggtt_vma() Rodrigo Siqueira <Rodrigo.Siqueira(a)amd.com> drm/amd/display: Fix green screen issue after suspend Ville Syrjälä <ville.syrjala(a)linux.intel.com> drm/edid: Fix off-by-one in DispID DTD pixel clock Marek Olšák <marek.olsak(a)amd.com> drm/amdgpu: invalidate L2 before SDMA IBs (v2) Daniel Vetter <daniel.vetter(a)intel.com> dma-buf: Fix SET_NAME ioctl uapi Christian König <christian.koenig(a)amd.com> drm/scheduler: fix drm_sched_get_cleanup_job ------------- Diffstat: Makefile | 4 +- arch/arm/boot/dts/imx6qdl-sr-som-ti.dtsi | 1 + arch/arm64/kernel/vdso/Makefile | 2 +- arch/x86/hyperv/hv_init.c | 12 +++- block/partition-generic.c | 2 +- drivers/acpi/device_pm.c | 4 +- drivers/crypto/caam/caamalg.c | 2 +- drivers/dma-buf/dma-buf.c | 3 +- drivers/dma/Kconfig | 3 +- drivers/dma/dmaengine.c | 60 +++++++++---------- drivers/dma/dmatest.c | 6 +- drivers/dma/ti/k3-psil.c | 1 + drivers/gpu/drm/amd/amdgpu/navi10_sdma_pkt_open.h | 16 ++++++ drivers/gpu/drm/amd/amdgpu/sdma_v5_0.c | 14 ++++- drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 38 +++++++++--- drivers/gpu/drm/drm_edid.c | 2 +- drivers/gpu/drm/i915/gem/i915_gem_tiling.c | 20 ++++++- drivers/gpu/drm/i915/gem/selftests/huge_pages.c | 12 ++-- drivers/gpu/drm/i915/gt/intel_timeline.c | 2 + drivers/gpu/drm/i915/i915_irq.c | 6 +- drivers/gpu/drm/i915/i915_vma.c | 10 ++-- drivers/gpu/drm/qxl/qxl_cmd.c | 10 ++-- drivers/gpu/drm/qxl/qxl_display.c | 6 +- drivers/gpu/drm/qxl/qxl_draw.c | 7 ++- drivers/gpu/drm/qxl/qxl_ioctl.c | 5 +- drivers/gpu/drm/scheduler/sched_main.c | 2 +- drivers/hv/vmbus_drv.c | 43 +++++++++++--- drivers/i2c/busses/i2c-amd-mp2-pci.c | 2 +- drivers/i2c/busses/i2c-aspeed.c | 5 +- drivers/i2c/busses/i2c-bcm-iproc.c | 3 + drivers/infiniband/core/cm.c | 27 ++++----- drivers/infiniband/core/rdma_core.c | 9 ++- drivers/infiniband/core/uverbs_main.c | 4 ++ drivers/infiniband/hw/mlx4/main.c | 3 +- drivers/infiniband/hw/mlx5/qp.c | 4 +- drivers/infiniband/sw/rdmavt/cq.c | 4 +- drivers/infiniband/sw/rdmavt/mmap.c | 4 +- drivers/infiniband/sw/rdmavt/qp.c | 4 +- drivers/infiniband/sw/rdmavt/srq.c | 4 +- drivers/infiniband/sw/siw/siw_qp_tx.c | 15 +++-- drivers/iommu/amd_iommu_init.c | 2 +- drivers/iommu/intel-iommu.c | 4 +- drivers/iommu/iommu.c | 2 +- drivers/iommu/qcom_iommu.c | 5 +- drivers/md/dm-mpath.c | 6 +- drivers/md/dm-verity-fec.c | 2 +- drivers/md/dm-writecache.c | 52 ++++++++++++----- drivers/mmc/host/cqhci.c | 21 ++++--- drivers/mmc/host/meson-mx-sdio.c | 11 +--- drivers/mmc/host/sdhci-msm.c | 2 + drivers/mmc/host/sdhci-pci-core.c | 3 + drivers/mmc/host/sdhci-xenon.c | 10 ++++ drivers/nvme/host/core.c | 2 + drivers/scsi/qla2xxx/qla_os.c | 35 ++++++------ drivers/target/target_core_iblock.c | 2 +- drivers/vfio/vfio_iommu_type1.c | 6 +- fs/btrfs/block-group.c | 16 ++++-- fs/btrfs/relocation.c | 1 + fs/btrfs/transaction.c | 13 ++++- fs/btrfs/tree-log.c | 43 +++++++++++++- fs/io_uring.c | 12 +++- fs/nfs/nfs3acl.c | 22 ++++--- fs/nfs/nfs4proc.c | 8 +++ fs/ocfs2/dlmfs/dlmfs.c | 27 ++++----- fs/super.c | 2 +- include/linux/dmaengine.h | 4 +- include/linux/nfs_xdr.h | 2 + include/linux/sunrpc/clnt.h | 5 ++ include/uapi/linux/dma-buf.h | 6 ++ kernel/power/hibernate.c | 7 +++ security/selinux/hooks.c | 70 +++++++++++++++-------- sound/core/oss/pcm_plugin.c | 20 ++++--- sound/isa/opti9xx/miro.c | 9 ++- sound/isa/opti9xx/opti92x-ad1848.c | 9 ++- sound/pci/hda/patch_hdmi.c | 4 +- sound/pci/hda/patch_realtek.c | 1 + sound/usb/line6/podhd.c | 22 ++----- sound/usb/quirks.c | 2 +- 78 files changed, 554 insertions(+), 297 deletions(-)

4 years, 8 months

7
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[PATCH] drm: Fix HDCP failures when SRM fw is missing

by Sean Paul

From: Sean Paul <seanpaul(a)chromium.org> The SRM cleanup in 79643fddd6eb2 ("drm/hdcp: optimizing the srm handling") inadvertently altered the behavior of HDCP auth when the SRM firmware is missing. Before that patch, missing SRM was interpreted as the device having no revoked keys. With that patch, if the SRM fw file is missing we reject _all_ keys. This patch fixes that regression by returning success if the file cannot be found. Fixes: 79643fddd6eb ("drm/hdcp: optimizing the srm handling") Cc: stable(a)vger.kernel.org Cc: Ramalingam C <ramalingam.c(a)intel.com> Cc: Sean Paul <sean(a)poorly.run> Cc: Maarten Lankhorst <maarten.lankhorst(a)linux.intel.com> Cc: Maxime Ripard <mripard(a)kernel.org> Cc: Thomas Zimmermann <tzimmermann(a)suse.de> Cc: David Airlie <airlied(a)linux.ie> Cc: Daniel Vetter <daniel(a)ffwll.ch> Cc: dri-devel(a)lists.freedesktop.org Signed-off-by: Sean Paul <seanpaul(a)chromium.org> --- drivers/gpu/drm/drm_hdcp.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/drm_hdcp.c b/drivers/gpu/drm/drm_hdcp.c index 7f386adcf872..3c36005d367b 100644 --- a/drivers/gpu/drm/drm_hdcp.c +++ b/drivers/gpu/drm/drm_hdcp.c @@ -241,8 +241,10 @@ static int drm_hdcp_request_srm(struct drm_device *drm_dev, ret = request_firmware_direct(&fw, (const char *)fw_name, drm_dev->dev); - if (ret < 0) + if (ret < 0) { + ret = 0; goto exit; + } if (fw->size && fw->data) ret = drm_hdcp_srm_update(fw->data, fw->size, revoked_ksv_list, -- Sean Paul, Software Engineer, Google / Chromium OS

4 years, 8 months

2
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[PATCH 4.9 00/18] 4.9.222-rc1 review

by Greg Kroah-Hartman

This is the start of the stable review cycle for the 4.9.222 release. There are 18 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, 06 May 2020 16:52:55 +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-4.9.222-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 4.9.222-rc1 Vasily Averin <vvs(a)virtuozzo.com> drm/qxl: qxl_release use after free Paul Moore <paul(a)paul-moore.com> selinux: properly handle multiple messages in selinux_netlink_send() Andy Shevchenko <andriy.shevchenko(a)linux.intel.com> dmaengine: dmatest: Fix iteration non-stop logic Andreas Gruenbacher <agruenba(a)redhat.com> nfs: Fix potential posix_acl refcnt leak in nfs3_set_acl Arnd Bergmann <arnd(a)arndb.de> ALSA: opti9xx: shut up gcc-10 range warning Suravee Suthikulpanit <suravee.suthikulpanit(a)amd.com> iommu/amd: Fix legacy interrupt remapping for x2APIC-enabled system Sean Christopherson <sean.j.christopherson(a)intel.com> vfio/type1: Fix VA->PA translation for PFNMAP VMAs in vaddr_get_pfn() Alaa Hleihel <alaa(a)mellanox.com> RDMA/mlx4: Initialize ib_spec on the stack Sunwook Eom <speed.eom(a)samsung.com> dm verity fec: fix hash block number in verity_fec_decode Dexuan Cui <decui(a)microsoft.com> PM: hibernate: Freeze kernel threads in software_resume() Kai-Heng Feng <kai.heng.feng(a)canonical.com> PM: ACPI: Output correct message on target power state Takashi Iwai <tiwai(a)suse.de> ALSA: pcm: oss: Place the plugin buffer overflow checks correctly Wu Bo <wubo40(a)huawei.com> ALSA: hda/hdmi: fix without unlocked before return Xiyu Yang <xiyuyang19(a)fudan.edu.cn> btrfs: fix block group leak when removing fails Vasily Averin <vvs(a)virtuozzo.com> drm/qxl: qxl_release leak in qxl_hw_surface_alloc() Vasily Averin <vvs(a)virtuozzo.com> drm/qxl: qxl_release leak in qxl_draw_dirty_fb() Ville Syrjälä <ville.syrjala(a)linux.intel.com> drm/edid: Fix off-by-one in DispID DTD pixel clock Theodore Ts'o <tytso(a)mit.edu> ext4: fix special inode number checks in __ext4_iget() ------------- Diffstat: Makefile | 4 +-- drivers/acpi/device_pm.c | 4 +-- drivers/dma/dmatest.c | 4 +-- drivers/gpu/drm/drm_edid.c | 2 +- drivers/gpu/drm/qxl/qxl_cmd.c | 10 +++--- drivers/gpu/drm/qxl/qxl_display.c | 8 ++--- drivers/gpu/drm/qxl/qxl_draw.c | 13 ++++---- drivers/gpu/drm/qxl/qxl_ioctl.c | 5 +-- drivers/infiniband/hw/mlx4/main.c | 3 +- drivers/iommu/amd_iommu_init.c | 2 +- drivers/md/dm-verity-fec.c | 2 +- drivers/vfio/vfio_iommu_type1.c | 4 +-- fs/btrfs/extent-tree.c | 16 +++++---- fs/ext4/inode.c | 2 +- fs/nfs/nfs3acl.c | 22 ++++++++---- kernel/power/hibernate.c | 7 ++++ security/selinux/hooks.c | 68 ++++++++++++++++++++++++-------------- sound/core/oss/pcm_plugin.c | 20 ++++++----- sound/isa/opti9xx/miro.c | 9 +++-- sound/isa/opti9xx/opti92x-ad1848.c | 9 +++-- sound/pci/hda/patch_hdmi.c | 4 ++- 21 files changed, 134 insertions(+), 84 deletions(-)

4 years, 8 months

5
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[PATCH 4.14 00/26] 4.14.179-rc1 review

by Greg Kroah-Hartman

This is the start of the stable review cycle for the 4.14.179 release. There are 26 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, 06 May 2020 16:52:55 +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-4.14.179-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 4.14.179-rc1 Paul Moore <paul(a)paul-moore.com> selinux: properly handle multiple messages in selinux_netlink_send() Andy Shevchenko <andriy.shevchenko(a)linux.intel.com> dmaengine: dmatest: Fix iteration non-stop logic Andreas Gruenbacher <agruenba(a)redhat.com> nfs: Fix potential posix_acl refcnt leak in nfs3_set_acl Arnd Bergmann <arnd(a)arndb.de> ALSA: opti9xx: shut up gcc-10 range warning Suravee Suthikulpanit <suravee.suthikulpanit(a)amd.com> iommu/amd: Fix legacy interrupt remapping for x2APIC-enabled system David Disseldorp <ddiss(a)suse.de> scsi: target/iblock: fix WRITE SAME zeroing Tang Bin <tangbin(a)cmss.chinamobile.com> iommu/qcom: Fix local_base status check Sean Christopherson <sean.j.christopherson(a)intel.com> vfio/type1: Fix VA->PA translation for PFNMAP VMAs in vaddr_get_pfn() Yan Zhao <yan.y.zhao(a)intel.com> vfio: avoid possible overflow in vfio_iommu_type1_pin_pages Alaa Hleihel <alaa(a)mellanox.com> RDMA/mlx4: Initialize ib_spec on the stack Aharon Landau <aharonl(a)mellanox.com> RDMA/mlx5: Set GRH fields in query QP on RoCE Sunwook Eom <speed.eom(a)samsung.com> dm verity fec: fix hash block number in verity_fec_decode Dexuan Cui <decui(a)microsoft.com> PM: hibernate: Freeze kernel threads in software_resume() Kai-Heng Feng <kai.heng.feng(a)canonical.com> PM: ACPI: Output correct message on target power state Takashi Iwai <tiwai(a)suse.de> ALSA: pcm: oss: Place the plugin buffer overflow checks correctly Wu Bo <wubo40(a)huawei.com> ALSA: hda/hdmi: fix without unlocked before return Hui Wang <hui.wang(a)canonical.com> ALSA: hda/realtek - Two front mics on a Lenovo ThinkCenter Adrian Hunter <adrian.hunter(a)intel.com> mmc: sdhci-pci: Fix eMMC driver strength for BYT-based controllers Marek Behún <marek.behun(a)nic.cz> mmc: sdhci-xenon: fix annoying 1.8V regulator warning Filipe Manana <fdmanana(a)suse.com> btrfs: fix partial loss of prealloc extent past i_size after fsync Xiyu Yang <xiyuyang19(a)fudan.edu.cn> btrfs: fix block group leak when removing fails Vasily Averin <vvs(a)virtuozzo.com> drm/qxl: qxl_release use after free Vasily Averin <vvs(a)virtuozzo.com> drm/qxl: qxl_release leak in qxl_hw_surface_alloc() Vasily Averin <vvs(a)virtuozzo.com> drm/qxl: qxl_release leak in qxl_draw_dirty_fb() Ville Syrjälä <ville.syrjala(a)linux.intel.com> drm/edid: Fix off-by-one in DispID DTD pixel clock Theodore Ts'o <tytso(a)mit.edu> ext4: fix special inode number checks in __ext4_iget() ------------- Diffstat: Makefile | 4 +-- drivers/acpi/device_pm.c | 4 +-- drivers/dma/dmatest.c | 4 +-- drivers/gpu/drm/drm_edid.c | 2 +- drivers/gpu/drm/qxl/qxl_cmd.c | 10 +++--- drivers/gpu/drm/qxl/qxl_display.c | 6 ++-- drivers/gpu/drm/qxl/qxl_draw.c | 13 +++---- drivers/gpu/drm/qxl/qxl_ioctl.c | 5 +-- drivers/infiniband/hw/mlx4/main.c | 3 +- drivers/infiniband/hw/mlx5/qp.c | 4 ++- drivers/iommu/amd_iommu_init.c | 2 +- drivers/iommu/qcom_iommu.c | 5 ++- drivers/md/dm-verity-fec.c | 2 +- drivers/mmc/host/sdhci-pci-core.c | 3 ++ drivers/mmc/host/sdhci-xenon.c | 10 ++++++ drivers/target/target_core_iblock.c | 2 +- drivers/vfio/vfio_iommu_type1.c | 6 ++-- fs/btrfs/extent-tree.c | 16 +++++---- fs/btrfs/tree-log.c | 43 +++++++++++++++++++++-- fs/ext4/inode.c | 2 +- fs/nfs/nfs3acl.c | 22 ++++++++---- kernel/power/hibernate.c | 7 ++++ security/selinux/hooks.c | 68 ++++++++++++++++++++++++------------- sound/core/oss/pcm_plugin.c | 20 ++++++----- sound/isa/opti9xx/miro.c | 9 +++-- sound/isa/opti9xx/opti92x-ad1848.c | 9 +++-- sound/pci/hda/patch_hdmi.c | 4 ++- sound/pci/hda/patch_realtek.c | 1 + 28 files changed, 196 insertions(+), 90 deletions(-)

4 years, 8 months

5
30
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[PATCH 4.4 00/18] 4.4.222-rc1 review

by Greg Kroah-Hartman

This is the start of the stable review cycle for the 4.4.222 release. There are 18 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, 06 May 2020 16:52:55 +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-4.4.222-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 4.4.222-rc1 Paul Moore <paul(a)paul-moore.com> selinux: properly handle multiple messages in selinux_netlink_send() Olivier Matz <olivier.matz(a)6wind.com> ipv6: use READ_ONCE() for inet->hdrincl as in ipv4 Lars-Peter Clausen <lars(a)metafoo.de> ASoC: imx-spdif: Fix crash on suspend Stuart Henderson <stuart.henderson(a)cirrus.com> ASoC: wm8960: Fix WM8960_SYSCLK_PLL mode Rasmus Villemoes <linux(a)rasmusvillemoes.dk> exynos4-is: fix a format string bug Peter Zijlstra <peterz(a)infradead.org> perf/x86: Fix uninitialized value usage Madhavan Srinivasan <maddy(a)linux.vnet.ibm.com> powerpc/perf: Remove PPMU_HAS_SSLOT flag for Power8 Jiri Olsa <jolsa(a)kernel.org> perf hists: Fix HISTC_MEM_DCACHELINE width setting Andy Shevchenko <andriy.shevchenko(a)linux.intel.com> i2c: designware-pci: use IRQF_COND_SUSPEND flag Andy Shevchenko <andriy.shevchenko(a)linux.intel.com> dmaengine: dmatest: Fix iteration non-stop logic Andreas Gruenbacher <agruenba(a)redhat.com> nfs: Fix potential posix_acl refcnt leak in nfs3_set_acl Arnd Bergmann <arnd(a)arndb.de> ALSA: opti9xx: shut up gcc-10 range warning Sean Christopherson <sean.j.christopherson(a)intel.com> vfio/type1: Fix VA->PA translation for PFNMAP VMAs in vaddr_get_pfn() Alaa Hleihel <alaa(a)mellanox.com> RDMA/mlx4: Initialize ib_spec on the stack Kai-Heng Feng <kai.heng.feng(a)canonical.com> PM: ACPI: Output correct message on target power state Takashi Iwai <tiwai(a)suse.de> ALSA: pcm: oss: Place the plugin buffer overflow checks correctly Vasily Averin <vvs(a)virtuozzo.com> drm/qxl: qxl_release leak in qxl_hw_surface_alloc() Theodore Ts'o <tytso(a)mit.edu> ext4: fix special inode number checks in __ext4_iget() ------------- Diffstat: Makefile | 4 +- arch/powerpc/perf/power8-pmu.c | 2 +- arch/x86/kernel/cpu/perf_event_intel.c | 3 +- drivers/acpi/device_pm.c | 4 +- drivers/dma/dmatest.c | 4 +- drivers/gpu/drm/qxl/qxl_cmd.c | 5 +- drivers/i2c/busses/i2c-designware-core.c | 3 +- drivers/infiniband/hw/mlx4/main.c | 3 +- drivers/media/platform/exynos4-is/fimc-isp-video.c | 4 +- drivers/vfio/vfio_iommu_type1.c | 4 +- fs/ext4/inode.c | 2 +- fs/nfs/nfs3acl.c | 22 ++++--- net/ipv6/raw.c | 12 +++- security/selinux/hooks.c | 69 ++++++++++++++-------- sound/core/oss/pcm_plugin.c | 20 ++++--- sound/isa/opti9xx/miro.c | 9 ++- sound/isa/opti9xx/opti92x-ad1848.c | 9 ++- sound/soc/codecs/wm8960.c | 32 +++++----- sound/soc/fsl/imx-spdif.c | 2 - tools/perf/util/hist.c | 2 + 20 files changed, 134 insertions(+), 81 deletions(-)

4 years, 8 months

5
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[PATCH 5.4 00/57] 5.4.39-rc1 review

by Greg Kroah-Hartman

This is the start of the stable review cycle for the 5.4.39 release. There are 57 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, 06 May 2020 16:52:55 +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-5.4.39-rc1… or in the git tree and branch at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-5.4.y and the diffstat can be found below. thanks, greg k-h ------------- Pseudo-Shortlog of commits: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Linux 5.4.39-rc1 Paul Moore <paul(a)paul-moore.com> selinux: properly handle multiple messages in selinux_netlink_send() Vincenzo Frascino <vincenzo.frascino(a)arm.com> arm64: vdso: Add -fasynchronous-unwind-tables to cflags Andy Shevchenko <andriy.shevchenko(a)linux.intel.com> dmaengine: dmatest: Fix process hang when reading 'wait' parameter Andy Shevchenko <andriy.shevchenko(a)linux.intel.com> dmaengine: dmatest: Fix iteration non-stop logic Andreas Gruenbacher <agruenba(a)redhat.com> nfs: Fix potential posix_acl refcnt leak in nfs3_set_acl Niklas Cassel <niklas.cassel(a)wdc.com> nvme: prevent double free in nvme_alloc_ns() error handling David Howells <dhowells(a)redhat.com> Fix use after free in get_tree_bdev() Arnd Bergmann <arnd(a)arndb.de> ALSA: opti9xx: shut up gcc-10 range warning ryan_chen <ryan_chen(a)aspeedtech.com> i2c: aspeed: Avoid i2c interrupt status clear race condition. Suravee Suthikulpanit <suravee.suthikulpanit(a)amd.com> iommu/amd: Fix legacy interrupt remapping for x2APIC-enabled system David Disseldorp <ddiss(a)suse.de> scsi: target/iblock: fix WRITE SAME zeroing Tang Bin <tangbin(a)cmss.chinamobile.com> iommu/qcom: Fix local_base status check Sean Christopherson <sean.j.christopherson(a)intel.com> vfio/type1: Fix VA->PA translation for PFNMAP VMAs in vaddr_get_pfn() Yan Zhao <yan.y.zhao(a)intel.com> vfio: avoid possible overflow in vfio_iommu_type1_pin_pages Rayagonda Kokatanur <rayagonda.kokatanur(a)broadcom.com> i2c: iproc: generate stop event for slave writes Dan Carpenter <dan.carpenter(a)oracle.com> RDMA/cm: Fix an error check in cm_alloc_id_priv() Jason Gunthorpe <jgg(a)ziepe.ca> RDMA/cm: Fix ordering of xa_alloc_cyclic() in ib_create_cm_id() Leon Romanovsky <leon(a)kernel.org> RDMA/core: Fix race between destroy and release FD object Leon Romanovsky <leon(a)kernel.org> RDMA/core: Prevent mixed use of FDs between shared ufiles Jason Gunthorpe <jgg(a)ziepe.ca> RDMA/siw: Fix potential siw_mem refcnt leak in siw_fastreg_mr() Alaa Hleihel <alaa(a)mellanox.com> RDMA/mlx4: Initialize ib_spec on the stack Aharon Landau <aharonl(a)mellanox.com> RDMA/mlx5: Set GRH fields in query QP on RoCE Martin Wilck <mwilck(a)suse.com> scsi: qla2xxx: check UNLOADING before posting async work Martin Wilck <mwilck(a)suse.com> scsi: qla2xxx: set UNLOADING before waiting for session deletion Russell King <rmk+kernel(a)armlinux.org.uk> ARM: dts: imx6qdl-sr-som-ti: indicate powering off wifi is safe Gabriel Krisman Bertazi <krisman(a)collabora.com> dm multipath: use updated MPATHF_QUEUE_IO on mapping for bio-based mpath Mikulas Patocka <mpatocka(a)redhat.com> dm writecache: fix data corruption when reloading the target Sunwook Eom <speed.eom(a)samsung.com> dm verity fec: fix hash block number in verity_fec_decode Dexuan Cui <decui(a)microsoft.com> PM: hibernate: Freeze kernel threads in software_resume() Kai-Heng Feng <kai.heng.feng(a)canonical.com> PM: ACPI: Output correct message on target power state Sudip Mukherjee <sudipm.mukherjee(a)gmail.com> IB/rdmavt: Always return ERR_PTR from rvt_create_mmap_info() Al Viro <viro(a)zeniv.linux.org.uk> dlmfs_file_write(): fix the bogosity in handling non-zero *ppos Dexuan Cui <decui(a)microsoft.com> Drivers: hv: vmbus: Fix Suspend-to-Idle for Generation-2 VM Dan Carpenter <dan.carpenter(a)oracle.com> i2c: amd-mp2-pci: Fix Oops in amd_mp2_pci_init() error handling Takashi Iwai <tiwai(a)suse.de> ALSA: pcm: oss: Place the plugin buffer overflow checks correctly Vasily Khoruzhick <anarsoul(a)gmail.com> ALSA: line6: Fix POD HD500 audio playback Wu Bo <wubo40(a)huawei.com> ALSA: hda/hdmi: fix without unlocked before return Takashi Iwai <tiwai(a)suse.de> ALSA: usb-audio: Correct a typo of NuPrime DAC-10 USB ID Hui Wang <hui.wang(a)canonical.com> ALSA: hda/realtek - Two front mics on a Lenovo ThinkCenter Iuliana Prodan <iuliana.prodan(a)nxp.com> crypto: caam - fix the address of the last entry of S/G Martin Blumenstingl <martin.blumenstingl(a)googlemail.com> mmc: meson-mx-sdio: remove the broken ->card_busy() op Martin Blumenstingl <martin.blumenstingl(a)googlemail.com> mmc: meson-mx-sdio: Set MMC_CAP_WAIT_WHILE_BUSY Veerabhadrarao Badiganti <vbadigan(a)codeaurora.org> mmc: sdhci-msm: Enable host capabilities pertains to R1b response Adrian Hunter <adrian.hunter(a)intel.com> mmc: sdhci-pci: Fix eMMC driver strength for BYT-based controllers Marek Behún <marek.behun(a)nic.cz> mmc: sdhci-xenon: fix annoying 1.8V regulator warning Douglas Anderson <dianders(a)chromium.org> mmc: cqhci: Avoid false "cqhci: CQE stuck on" by not open-coding timeout loop Qu Wenruo <wqu(a)suse.com> btrfs: transaction: Avoid deadlock due to bad initialization timing of fs_info::journal_info Filipe Manana <fdmanana(a)suse.com> btrfs: fix partial loss of prealloc extent past i_size after fsync Xiyu Yang <xiyuyang19(a)fudan.edu.cn> btrfs: fix block group leak when removing fails Xiyu Yang <xiyuyang19(a)fudan.edu.cn> btrfs: fix transaction leak in btrfs_recover_relocation Olga Kornievskaia <olga.kornievskaia(a)gmail.com> NFSv4.1: fix handling of backchannel binding in BIND_CONN_TO_SESSION Vasily Averin <vvs(a)virtuozzo.com> drm/qxl: qxl_release use after free Vasily Averin <vvs(a)virtuozzo.com> drm/qxl: qxl_release leak in qxl_hw_surface_alloc() Vasily Averin <vvs(a)virtuozzo.com> drm/qxl: qxl_release leak in qxl_draw_dirty_fb() Rodrigo Siqueira <Rodrigo.Siqueira(a)amd.com> drm/amd/display: Fix green screen issue after suspend Ville Syrjälä <ville.syrjala(a)linux.intel.com> drm/edid: Fix off-by-one in DispID DTD pixel clock Daniel Vetter <daniel.vetter(a)intel.com> dma-buf: Fix SET_NAME ioctl uapi ------------- Diffstat: Makefile | 4 +- arch/arm/boot/dts/imx6qdl-sr-som-ti.dtsi | 1 + arch/arm64/kernel/vdso/Makefile | 2 +- drivers/acpi/device_pm.c | 4 +- drivers/crypto/caam/caamalg.c | 2 +- drivers/dma-buf/dma-buf.c | 3 +- drivers/dma/dmatest.c | 6 +- drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 38 +++++++++--- drivers/gpu/drm/drm_edid.c | 2 +- drivers/gpu/drm/qxl/qxl_cmd.c | 10 ++-- drivers/gpu/drm/qxl/qxl_display.c | 6 +- drivers/gpu/drm/qxl/qxl_draw.c | 7 ++- drivers/gpu/drm/qxl/qxl_ioctl.c | 5 +- drivers/hv/vmbus_drv.c | 43 +++++++++++--- drivers/i2c/busses/i2c-amd-mp2-pci.c | 2 +- drivers/i2c/busses/i2c-aspeed.c | 5 +- drivers/i2c/busses/i2c-bcm-iproc.c | 3 + drivers/infiniband/core/cm.c | 27 ++++----- drivers/infiniband/core/rdma_core.c | 4 +- drivers/infiniband/hw/mlx4/main.c | 3 +- drivers/infiniband/hw/mlx5/qp.c | 4 +- drivers/infiniband/sw/rdmavt/cq.c | 4 +- drivers/infiniband/sw/rdmavt/mmap.c | 4 +- drivers/infiniband/sw/rdmavt/qp.c | 4 +- drivers/infiniband/sw/rdmavt/srq.c | 4 +- drivers/infiniband/sw/siw/siw_qp_tx.c | 15 +++-- drivers/iommu/amd_iommu_init.c | 2 +- drivers/iommu/qcom_iommu.c | 5 +- drivers/md/dm-mpath.c | 6 +- drivers/md/dm-verity-fec.c | 2 +- drivers/md/dm-writecache.c | 52 ++++++++++++----- drivers/mmc/host/cqhci.c | 21 ++++--- drivers/mmc/host/meson-mx-sdio.c | 11 +--- drivers/mmc/host/sdhci-msm.c | 2 + drivers/mmc/host/sdhci-pci-core.c | 3 + drivers/mmc/host/sdhci-xenon.c | 10 ++++ drivers/nvme/host/core.c | 2 + drivers/scsi/qla2xxx/qla_os.c | 35 ++++++------ drivers/target/target_core_iblock.c | 2 +- drivers/vfio/vfio_iommu_type1.c | 6 +- fs/btrfs/block-group.c | 16 ++++-- fs/btrfs/relocation.c | 1 + fs/btrfs/transaction.c | 13 ++++- fs/btrfs/tree-log.c | 43 +++++++++++++- fs/nfs/nfs3acl.c | 22 ++++--- fs/nfs/nfs4proc.c | 8 +++ fs/ocfs2/dlmfs/dlmfs.c | 27 ++++----- fs/super.c | 2 +- include/linux/nfs_xdr.h | 2 + include/linux/sunrpc/clnt.h | 5 ++ include/uapi/linux/dma-buf.h | 6 ++ kernel/power/hibernate.c | 7 +++ security/selinux/hooks.c | 70 +++++++++++++++-------- sound/core/oss/pcm_plugin.c | 20 ++++--- sound/isa/opti9xx/miro.c | 9 ++- sound/isa/opti9xx/opti92x-ad1848.c | 9 ++- sound/pci/hda/patch_hdmi.c | 4 +- sound/pci/hda/patch_realtek.c | 1 + sound/usb/line6/podhd.c | 22 ++----- sound/usb/quirks.c | 2 +- 60 files changed, 427 insertions(+), 233 deletions(-)

4 years, 8 months

5
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patch "mei: me: disable mei interface on LBG servers." added to char-misc-linus

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled mei: me: disable mei interface on LBG servers. to my char-misc git tree which can be found at git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc.git in the char-misc-linus branch. The patch will show up in the next release of the linux-next tree (usually sometime within the next 24 hours during the week.) The patch will hopefully also be merged in Linus's tree for the next -rc kernel release. If you have any questions about this process, please let me know. >From d76bc8200f9cf8b6746e66b37317ba477eda25c4 Mon Sep 17 00:00:00 2001 From: Tomas Winkler <tomas.winkler(a)intel.com> Date: Wed, 29 Apr 2020 00:12:00 +0300 Subject: mei: me: disable mei interface on LBG servers. Disable the MEI driver on LBG SPS (server) platforms, some corner flows such as recovery mode does not work, and the driver doesn't have working use cases. Cc: <stable(a)vger.kernel.org> Signed-off-by: Tomas Winkler <tomas.winkler(a)intel.com> Link: https://lore.kernel.org/r/20200428211200.12200-1-tomas.winkler@intel.com Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- drivers/misc/mei/hw-me.c | 8 ++++++++ drivers/misc/mei/hw-me.h | 4 ++++ drivers/misc/mei/pci-me.c | 2 +- 3 files changed, 13 insertions(+), 1 deletion(-) diff --git a/drivers/misc/mei/hw-me.c b/drivers/misc/mei/hw-me.c index 668418d7ea77..f620442addf5 100644 --- a/drivers/misc/mei/hw-me.c +++ b/drivers/misc/mei/hw-me.c @@ -1465,6 +1465,13 @@ static const struct mei_cfg mei_me_pch12_cfg = { MEI_CFG_DMA_128, }; +/* LBG with quirk for SPS Firmware exclusion */ +static const struct mei_cfg mei_me_pch12_sps_cfg = { + MEI_CFG_PCH8_HFS, + MEI_CFG_FW_VER_SUPP, + MEI_CFG_FW_SPS, +}; + /* Tiger Lake and newer devices */ static const struct mei_cfg mei_me_pch15_cfg = { MEI_CFG_PCH8_HFS, @@ -1487,6 +1494,7 @@ static const struct mei_cfg *const mei_cfg_list[] = { [MEI_ME_PCH8_CFG] = &mei_me_pch8_cfg, [MEI_ME_PCH8_SPS_CFG] = &mei_me_pch8_sps_cfg, [MEI_ME_PCH12_CFG] = &mei_me_pch12_cfg, + [MEI_ME_PCH12_SPS_CFG] = &mei_me_pch12_sps_cfg, [MEI_ME_PCH15_CFG] = &mei_me_pch15_cfg, }; diff --git a/drivers/misc/mei/hw-me.h b/drivers/misc/mei/hw-me.h index 4a8d4dcd5a91..b6b94e211464 100644 --- a/drivers/misc/mei/hw-me.h +++ b/drivers/misc/mei/hw-me.h @@ -80,6 +80,9 @@ struct mei_me_hw { * servers platforms with quirk for * SPS firmware exclusion. * @MEI_ME_PCH12_CFG: Platform Controller Hub Gen12 and newer + * @MEI_ME_PCH12_SPS_CFG: Platform Controller Hub Gen12 and newer + * servers platforms with quirk for + * SPS firmware exclusion. * @MEI_ME_PCH15_CFG: Platform Controller Hub Gen15 and newer * @MEI_ME_NUM_CFG: Upper Sentinel. */ @@ -93,6 +96,7 @@ enum mei_cfg_idx { MEI_ME_PCH8_CFG, MEI_ME_PCH8_SPS_CFG, MEI_ME_PCH12_CFG, + MEI_ME_PCH12_SPS_CFG, MEI_ME_PCH15_CFG, MEI_ME_NUM_CFG, }; diff --git a/drivers/misc/mei/pci-me.c b/drivers/misc/mei/pci-me.c index 0c390fe421ad..a1ed375fed37 100644 --- a/drivers/misc/mei/pci-me.c +++ b/drivers/misc/mei/pci-me.c @@ -70,7 +70,7 @@ static const struct pci_device_id mei_me_pci_tbl[] = { {MEI_PCI_DEVICE(MEI_DEV_ID_SPT_2, MEI_ME_PCH8_CFG)}, {MEI_PCI_DEVICE(MEI_DEV_ID_SPT_H, MEI_ME_PCH8_SPS_CFG)}, {MEI_PCI_DEVICE(MEI_DEV_ID_SPT_H_2, MEI_ME_PCH8_SPS_CFG)}, - {MEI_PCI_DEVICE(MEI_DEV_ID_LBG, MEI_ME_PCH12_CFG)}, + {MEI_PCI_DEVICE(MEI_DEV_ID_LBG, MEI_ME_PCH12_SPS_CFG)}, {MEI_PCI_DEVICE(MEI_DEV_ID_BXT_M, MEI_ME_PCH8_CFG)}, {MEI_PCI_DEVICE(MEI_DEV_ID_APL_I, MEI_ME_PCH8_CFG)}, -- 2.26.2

4 years, 8 months

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[PATCH v2] epoll: call final ep_events_available() check under the lock

by Roman Penyaev

There is a possible race when ep_scan_ready_list() leaves ->rdllist and ->obflist empty for a short period of time although some events are pending. It is quite likely that ep_events_available() observes empty lists and goes to sleep. Since 339ddb53d373 ("fs/epoll: remove unnecessary wakeups of nested epoll") we are conservative in wakeups (there is only one place for wakeup and this is ep_poll_callback()), thus ep_events_available() must always observe correct state of two lists. The easiest and correct way is to do the final check under the lock. This does not impact the performance, since lock is taken anyway for adding a wait entry to the wait queue. The discussion of the problem can be found here: https://lore.kernel.org/linux-fsdevel/a2f22c3c-c25a-4bda-8339-a7bdaf17849e@… In this patch barrierless __set_current_state() is used. This is safe since waitqueue_active() is called under the same lock on wakeup side. Short-circuit for fatal signals (i.e. fatal_signal_pending() check) is moved to the line just before actual events harvesting routine. This is fully compliant to what is said in the comment of the patch where the actual fatal_signal_pending() check was added: c257a340ede0 ("fs, epoll: short circuit fetching events if thread has been killed"). Fixes: 339ddb53d373 ("fs/epoll: remove unnecessary wakeups of nested epoll") Signed-off-by: Roman Penyaev <rpenyaev(a)suse.de> Reported-by: Jason Baron <jbaron(a)akamai.com> Reviewed-by: Jason Baron <jbaron(a)akamai.com> Cc: Andrew Morton <akpm(a)linux-foundation.org> Cc: Khazhismel Kumykov <khazhy(a)google.com> Cc: Alexander Viro <viro(a)zeniv.linux.org.uk> Cc: linux-fsdevel(a)vger.kernel.org Cc: linux-kernel(a)vger.kernel.org Cc: stable(a)vger.kernel.org --- v2: minor comments tweaks fs/eventpoll.c | 48 ++++++++++++++++++++++++++++-------------------- 1 file changed, 28 insertions(+), 20 deletions(-) diff --git a/fs/eventpoll.c b/fs/eventpoll.c index aba03ee749f8..12eebcdea9c8 100644 --- a/fs/eventpoll.c +++ b/fs/eventpoll.c @@ -1879,34 +1879,33 @@ static int ep_poll(struct eventpoll *ep, struct epoll_event __user *events, * event delivery. */ init_wait(&wait); - write_lock_irq(&ep->lock); - __add_wait_queue_exclusive(&ep->wq, &wait); - write_unlock_irq(&ep->lock); + write_lock_irq(&ep->lock); /* - * We don't want to sleep if the ep_poll_callback() sends us - * a wakeup in between. That's why we set the task state - * to TASK_INTERRUPTIBLE before doing the checks. + * Barrierless variant, waitqueue_active() is called under + * the same lock on wakeup ep_poll_callback() side, so it + * is safe to avoid an explicit barrier. */ - set_current_state(TASK_INTERRUPTIBLE); + __set_current_state(TASK_INTERRUPTIBLE); + /* - * Always short-circuit for fatal signals to allow - * threads to make a timely exit without the chance of - * finding more events available and fetching - * repeatedly. + * Do the final check under the lock. ep_scan_ready_list() + * plays with two lists (->rdllist and ->ovflist) and there + * is always a race when both lists are empty for short + * period of time although events are pending, so lock is + * important. */ - if (fatal_signal_pending(current)) { - res = -EINTR; - break; + eavail = ep_events_available(ep); + if (!eavail) { + if (signal_pending(current)) + res = -EINTR; + else + __add_wait_queue_exclusive(&ep->wq, &wait); } + write_unlock_irq(&ep->lock); - eavail = ep_events_available(ep); - if (eavail) - break; - if (signal_pending(current)) { - res = -EINTR; + if (eavail || res) break; - } if (!schedule_hrtimeout_range(to, slack, HRTIMER_MODE_ABS)) { timed_out = 1; @@ -1927,6 +1926,15 @@ static int ep_poll(struct eventpoll *ep, struct epoll_event __user *events, } send_events: + if (fatal_signal_pending(current)) { + /* + * Always short-circuit for fatal signals to allow + * threads to make a timely exit without the chance of + * finding more events available and fetching + * repeatedly. + */ + res = -EINTR; + } /* * Try to transfer events to user space. In case we get 0 events and * there's still timeout left over, we go trying again in search of -- 2.24.1

4 years, 8 months

1
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[PATCH 4.19 STABLE 0/2] KVM: VMX: Fix null pointer dereference

by Sean Christopherson

A simple fix for a null pointer dereference in vmx_vcpu_run() with an ugly-but-safe prereq patch. The fix also has a wart/hack where it marks RSP as clobbered using ASM_CALL_CONSTRAINT to workaround an issue where the VM-Exit label isn't found by _something_ during modpost. I vaguely recall seeing the same issue when I first worked on this code a few years back. I think it was objtool that was confused, but I can't remember the details for the life of me. I don't have more cycles to throw at deciphering the thing, and marking RSP as clobbered is safe, so I went with the hack. Alternatively, reverting the offending commit (added in v4.19.119) would fix the immediate issue, but RDX and RSI technically need to be marked as clobbered even though it's extremely unlikely the compiler will consume their bad value. All of the above ugliness seems preferable to leaving a known bug in place. Sean Christopherson (2): KVM: VMX: Explicitly reference RCX as the vmx_vcpu pointer in asm blobs KVM: VMX: Mark RCX, RDX and RSI as clobbered in vmx_vcpu_run()'s asm blob arch/x86/kvm/vmx.c | 89 +++++++++++++++++++++++++--------------------- 1 file changed, 49 insertions(+), 40 deletions(-) -- 2.26.0

4 years, 8 months

2
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[git:media_tree/master] media: staging: ipu3-imgu: Move alignment attribute to field

by Mauro Carvalho Chehab

This is an automatic generated email to let you know that the following patch were queued: Subject: media: staging: ipu3-imgu: Move alignment attribute to field Author: Sakari Ailus <sakari.ailus(a)linux.intel.com> Date: Wed Apr 15 17:40:09 2020 +0200 Move the alignment attribute of struct ipu3_uapi_awb_fr_config_s to the field in struct ipu3_uapi_4a_config, the other location where the struct is used. Fixes: commit c9d52c114a9f ("media: staging: imgu: Address a compiler warning on alignment") Reported-by: Tomasz Figa <tfiga(a)chromium.org> Tested-by: Bingbu Cao <bingbu.cao(a)intel.com> Cc: stable(a)vger.kernel.org # for v5.3 and up Signed-off-by: Sakari Ailus <sakari.ailus(a)linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei(a)kernel.org> drivers/staging/media/ipu3/include/intel-ipu3.h | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) --- diff --git a/drivers/staging/media/ipu3/include/intel-ipu3.h b/drivers/staging/media/ipu3/include/intel-ipu3.h index 5f43f631cf62..a607b0158c81 100644 --- a/drivers/staging/media/ipu3/include/intel-ipu3.h +++ b/drivers/staging/media/ipu3/include/intel-ipu3.h @@ -450,7 +450,7 @@ struct ipu3_uapi_awb_fr_config_s { __u32 bayer_sign; __u8 bayer_nf; __u8 reserved2[7]; -} __attribute__((aligned(32))) __packed; +} __packed; /** * struct ipu3_uapi_4a_config - 4A config @@ -466,7 +466,8 @@ struct ipu3_uapi_4a_config { struct ipu3_uapi_ae_grid_config ae_grd_config; __u8 padding[20]; struct ipu3_uapi_af_config_s af_config; - struct ipu3_uapi_awb_fr_config_s awb_fr_config; + struct ipu3_uapi_awb_fr_config_s awb_fr_config + __attribute__((aligned(32))); } __packed; /**

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