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4 weeks agoMerge tag 'x86-urgent-2025-09-20' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Sat, 20 Sep 2025 16:27:15 +0000 (09:27 -0700)]
Merge tag 'x86-urgent-2025-09-20' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 fix from Ingo Molnar:
 "Fix a SEV-SNP regression when CONFIG_KVM_AMD_SEV is disabled"

* tag 'x86-urgent-2025-09-20' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/sev: Guard sev_evict_cache() with CONFIG_AMD_MEM_ENCRYPT

4 weeks agoMerge tag '6.17-rc6-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6
Linus Torvalds [Fri, 19 Sep 2025 23:11:30 +0000 (16:11 -0700)]
Merge tag '6.17-rc6-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6

Pull smb client fixes from Steve French:

 - Two unlink fixes: one for rename and one for deferred close

 - Four smbdirect/RDMA fixes: fix buffer leak in negotiate, two fixes
   for races in smbd_destroy, fix offset and length checks in recv_done

* tag '6.17-rc6-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6:
  smb: client: fix smbdirect_recv_io leak in smbd_negotiate() error path
  smb: client: fix file open check in __cifs_unlink()
  smb: client: let smbd_destroy() call disable_work_sync(&info->post_send_credits_work)
  smb: client: use disable[_delayed]_work_sync in smbdirect.c
  smb: client: fix filename matching of deferred files
  smb: client: let recv_done verify data_offset, data_length and remaining_data_length

4 weeks agoMerge tag 'iommu-fixes-v6.17-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Fri, 19 Sep 2025 23:02:48 +0000 (16:02 -0700)]
Merge tag 'iommu-fixes-v6.17-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux

Pull iommu fixes from Joerg Roedel:

 - Fixes for memory leak and memory corruption bugs on S390 and AMD-Vi

 - Race condition fix in AMD-Vi page table code and S390 device attach
   code

 - Intel VT-d: Fix alignment checks in __domain_mapping()

 - AMD-Vi: Fix potentially incorrect DTE settings when device has
   aliases

* tag 'iommu-fixes-v6.17-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux:
  iommu/amd/pgtbl: Fix possible race while increase page table level
  iommu/amd: Fix alias device DTE setting
  iommu/s390: Make attach succeed when the device was surprise removed
  iommu/vt-d: Fix __domain_mapping()'s usage of switch_to_super_page()
  iommu/s390: Fix memory corruption when using identity domain
  iommu/amd: Fix ivrs_base memleak in early_amd_iommu_init()

4 weeks agoMerge tag 'block-6.17-20250918' of git://git.kernel.dk/linux
Linus Torvalds [Fri, 19 Sep 2025 19:26:20 +0000 (12:26 -0700)]
Merge tag 'block-6.17-20250918' of git://git.kernel.dk/linux

Pull block fixes from Jens Axboe:
 "A set of fixes for an issue with md array assembly and drbd for
  devices supporting write zeros"

* tag 'block-6.17-20250918' of git://git.kernel.dk/linux:
  drbd: init queue_limits->max_hw_wzeroes_unmap_sectors parameter
  md: init queue_limits->max_hw_wzeroes_unmap_sectors parameter

4 weeks agoMerge tag 'io_uring-6.17-20250919' of git://git.kernel.dk/linux
Linus Torvalds [Fri, 19 Sep 2025 19:10:49 +0000 (12:10 -0700)]
Merge tag 'io_uring-6.17-20250919' of git://git.kernel.dk/linux

Pull io_uring fixes from Jens Axboe:

 - Fix for a regression introduced in the io-wq worker creation logic.

 - Remove the allocation cache for the msg_ring io_kiocb allocations. I
   have a suspicion that there's a bug there, and since we just fixed
   one in that area, let's just yank the use of that cache entirely.
   It's not that important, and it kills some code.

 - Treat a closed ring like task exiting in that any requests that
   trigger post that condition should just get canceled. Doesn't fix any
   real issues, outside of having tasks being able to rely on that
   guarantee.

 - Fix for a bug in the network zero-copy notification mechanism, where
   a comparison for matching tctx/ctx for notifications was buggy in
   that it didn't correctly compare with the previous notification.

* tag 'io_uring-6.17-20250919' of git://git.kernel.dk/linux:
  io_uring: fix incorrect io_kiocb reference in io_link_skb
  io_uring/msg_ring: kill alloc_cache for io_kiocb allocations
  io_uring: include dying ring in task_work "should cancel" state
  io_uring/io-wq: fix `max_workers` breakage and `nr_workers` underflow

4 weeks agoMerge tag 'gpio-fixes-for-v6.17-rc7' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Fri, 19 Sep 2025 18:39:26 +0000 (11:39 -0700)]
Merge tag 'gpio-fixes-for-v6.17-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux

Pull gpio fixes from Bartosz Golaszewski:

 - fix an ACPI I2C HID driver breakage due to not initializing a
   structure on the stack and passing garbage down to GPIO core

 - ignore touchpad wakeup on GPD G1619-05

 - fix debouncing configuration when looking up GPIOs in ACPI

* tag 'gpio-fixes-for-v6.17-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
  gpiolib: acpi: initialize acpi_gpio_info struct
  gpiolib: acpi: Ignore touchpad wakeup on GPD G1619-05
  gpiolib: acpi: Program debounce when finding GPIO

4 weeks agoMerge tag 'mmc-v6.17-rc2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc
Linus Torvalds [Fri, 19 Sep 2025 17:30:16 +0000 (10:30 -0700)]
Merge tag 'mmc-v6.17-rc2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc

Pull MMC host fixes from Ulf Hansson:

 - mvsdio: Fix dma_unmap_sg() nents value

 - sdhci: Fix clock management for UHS-II

 - sdhci-pci-gli: Fix initialization of UHS-II for GL9767

* tag 'mmc-v6.17-rc2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
  mmc: sdhci-pci-gli: GL9767: Fix initializing the UHS-II interface during a power-on
  mmc: sdhci-uhs2: Fix calling incorrect sdhci_set_clock() function
  mmc: sdhci: Move the code related to setting the clock from sdhci_set_ios_common() into sdhci_set_ios()
  mmc: mvsdio: Fix dma_unmap_sg() nents value

4 weeks agoMerge tag 'pmdomain-v6.17-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh...
Linus Torvalds [Fri, 19 Sep 2025 17:14:11 +0000 (10:14 -0700)]
Merge tag 'pmdomain-v6.17-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/linux-pm

Pull pmdomain fixes from Ulf Hansson:
 "pmdomain core:
   - Restore behaviour for disabling unused PM domains and introduce the
     GENPD_FLAG_NO_STAY_ON configuration bit

  pmdomain providers:
   - renesas: Don't keep unused PM domains powered-on
   - rockchip: Fix regulator dependency with GENPD_FLAG_NO_STAY_ON"

* tag 'pmdomain-v6.17-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/linux-pm:
  pmdomain: renesas: rmobile-sysc: Don't keep unused PM domains powered-on
  pmdomain: renesas: rcar-gen4-sysc: Don't keep unused PM domains powered-on
  pmdomain: renesas: rcar-sysc: Don't keep unused PM domains powered-on
  pmdomain: rockchip: Fix regulator dependency with GENPD_FLAG_NO_STAY_ON
  pmdomain: core: Restore behaviour for disabling unused PM domains
  pmdomain: renesas: rcar-sysc: Make rcar_sysc_onecell_np __initdata

4 weeks agoMerge tag 'loongarch-fixes-6.17-2' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Fri, 19 Sep 2025 17:06:51 +0000 (10:06 -0700)]
Merge tag 'loongarch-fixes-6.17-2' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson

Pull LoongArch fixes from Huacai Chen:
 "Fix some build warnings for RUST-enabled objtool check, align ACPI
  structures for ARCH_STRICT_ALIGN, fix an unreliable stack for live
  patching, add some NULL pointer checkings, and fix some bugs around
  KVM"

* tag 'loongarch-fixes-6.17-2' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson:
  LoongArch: KVM: Avoid copy_*_user() with lock hold in kvm_pch_pic_regs_access()
  LoongArch: KVM: Avoid copy_*_user() with lock hold in kvm_eiointc_sw_status_access()
  LoongArch: KVM: Avoid copy_*_user() with lock hold in kvm_eiointc_regs_access()
  LoongArch: KVM: Avoid copy_*_user() with lock hold in kvm_eiointc_ctrl_access()
  LoongArch: KVM: Fix VM migration failure with PTW enabled
  LoongArch: KVM: Remove unused returns and semicolons
  LoongArch: vDSO: Check kcalloc() result in init_vdso()
  LoongArch: Fix unreliable stack for live patching
  LoongArch: Replace sprintf() with sysfs_emit()
  LoongArch: Check the return value when creating kobj
  LoongArch: Align ACPI structures if ARCH_STRICT_ALIGN enabled
  LoongArch: Update help info of ARCH_STRICT_ALIGN
  LoongArch: Handle jump tables options for RUST
  LoongArch: Make LTO case independent in Makefile
  objtool/LoongArch: Mark special atomic instruction as INSN_BUG type
  objtool/LoongArch: Mark types based on break immediate code

4 weeks agoMerge tag 'v6.17-p3' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Linus Torvalds [Fri, 19 Sep 2025 16:58:21 +0000 (09:58 -0700)]
Merge tag 'v6.17-p3' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6

Pull crypto fixes from Herbert Xu:
 "This fixes a NULL pointer dereference in ccp and a couple of bugs in
  the af_alg interface"

* tag 'v6.17-p3' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  crypto: af_alg - Disallow concurrent writes in af_alg_sendmsg
  crypto: af_alg - Set merge to zero early in af_alg_sendmsg
  crypto: ccp - Always pass in an error pointer to __sev_platform_shutdown_locked()

4 weeks agoMerge tag 'sound-6.17-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai...
Linus Torvalds [Fri, 19 Sep 2025 15:22:07 +0000 (08:22 -0700)]
Merge tag 'sound-6.17-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "A collection of small fixes. The volume became higher than wished, but
  nothing really stands out -- all small, nice and smooth.

  A slightly large change is found in qcom USB-audio offload stuff, but
  this is a regression fix specific to this device, hence it should be
  safe to apply at this late stage.

   - Various small fixes for ASoC Cirrus, Realtek, lpass, Intel and
     Qualcomm drivers

   - ASoC SoundWire fixes

   - A few TAS2781 HD-audio side-codec driver fixes

   - A fix for Qualcomm USB-audio offload breakage

   - Usual a few HD-audio quirks"

* tag 'sound-6.17-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (35 commits)
  ALSA: hda/realtek: Fix mute led for HP Laptop 15-dw4xx
  ALSA: hda: intel-dsp-config: Prevent SEGFAULT if ACPI_HANDLE() is NULL
  ALSA: usb: qcom: Fix false-positive address space check
  ASoC: rt5682s: Adjust SAR ADC button mode to fix noise issue
  ASoC: Intel: PTL: Add entry for HDMI-In capture support to non-I2S codec boards.
  ASoC: amd: acp: Fix incorrect retrival of acp_chip_info
  ASoC: Intel: sof_sdw: use PRODUCT_FAMILY for Fatcat series
  ASoC: qcom: sc8280xp: Fix sound card driver name match data for QCS8275
  ALSA: hda/realtek: Fix volume control on Lenovo Thinkbook 13x Gen 4
  ALSA: hda/realtek: Support Lenovo Thinkbook 13x Gen 5
  ALSA: hda: cs35l41: Support Lenovo Thinkbook 13x Gen 5
  ALSA: hda/realtek: Add ALC295 Dell TAS2781 I2C fixup
  ALSA: hda/tas2781: Fix a potential race condition that causes a NULL pointer in case no efi.get_variable exsits
  ASoC: qcom: sc8280xp: Enable DAI format configuration for MI2S interfaces
  ASoC: qcom: q6apm-lpass-dais: Fix missing set_fmt DAI op for I2S
  ASoC: qcom: audioreach: Fix lpaif_type configuration for the I2S interface
  ASoC: Intel: catpt: Expose correct bit depth to userspace
  ALSA: hda/tas2781: Fix the order of TAS2781 calibrated-data
  ASoC: codecs: lpass-wsa-macro: Fix speaker quality distortion
  ASoC: codecs: lpass-rx-macro: Fix playback quality distortion
  ...

4 weeks agoMerge tag 'drm-fixes-2025-09-19' of https://gitlab.freedesktop.org/drm/kernel
Linus Torvalds [Fri, 19 Sep 2025 15:13:46 +0000 (08:13 -0700)]
Merge tag 'drm-fixes-2025-09-19' of https://gitlab.freedesktop.org/drm/kernel

Pull drm fixes from Dave Airlie:
 "Weekly fixes for drm, it's a bit busier than I'd like on the xe side
  this week, but otherwise amdgpu and some smaller fixes for i915/bridge
  and a revert on docs.

  docs:
   - fix docs build regression

  i915:
   - Honor VESA eDP backlight luminance control capability

  bridge:
   - anx7625: Fix NULL pointer dereference with early IRQ
   - cdns-mhdp8546: Fix missing mutex unlock on error path

  xe:
   - Release kobject for the failure path
   - SRIOV PF: Drop rounddown_pow_of_two fair
   - Remove type casting on hwmon
   - Defer free of NVM auxiliary container to device release
   - Fix a NULL vs IS_ERR
   - Add cleanup action in xe_device_sysfs_init
   - Fix error handling if PXP fails to start
   - Set GuC RCS/CCS yield policy

  amdgpu:
   - GC 11.0.1/4 cleaner shader support
   - DC irq fix
   - OD fix

  amdkfd:
   - S0ix fix"

* tag 'drm-fixes-2025-09-19' of https://gitlab.freedesktop.org/drm/kernel:
  drm/amdgpu: suspend KFD and KGD user queues for S0ix
  drm/amdkfd: add proper handling for S0ix
  drm/xe/guc: Set RCS/CCS yield policy
  drm/xe: Fix error handling if PXP fails to start
  drm/xe/sysfs: Add cleanup action in xe_device_sysfs_init
  drm/amd: Only restore cached manual clock settings in restore if OD enabled
  drm/xe: Fix a NULL vs IS_ERR() in xe_vm_add_compute_exec_queue()
  drm: bridge: cdns-mhdp8546: Fix missing mutex unlock on error path
  drm/i915/backlight: Honor VESA eDP backlight luminance control capability
  drm/amd/display: Allow RX6xxx & RX7700 to invoke amdgpu_irq_get/put
  drm/amdgpu/gfx11: Add Cleaner Shader Support for GFX11.0.1/11.0.4 GPUs
  drm: bridge: anx7625: Fix NULL pointer dereference with early IRQ
  drm/xe: defer free of NVM auxiliary container to device release callback
  drm/xe/hwmon: Remove type casting
  drm/xe/pf: Drop rounddown_pow_of_two fair LMEM limitation
  drm/xe/tile: Release kobject for the failure path
  Revert "drm: Add directive to format code in comment"

4 weeks agoio_uring: fix incorrect io_kiocb reference in io_link_skb
Yang Xiuwei [Fri, 19 Sep 2025 09:03:52 +0000 (17:03 +0800)]
io_uring: fix incorrect io_kiocb reference in io_link_skb

In io_link_skb function, there is a bug where prev_notif is incorrectly
assigned using 'nd' instead of 'prev_nd'. This causes the context
validation check to compare the current notification with itself instead
of comparing it with the previous notification.

Fix by using the correct prev_nd parameter when obtaining prev_notif.

Signed-off-by: Yang Xiuwei <yangxiuwei@kylinos.cn>
Reviewed-by: Pavel Begunkov <asml.silence@gmail.com>
Fixes: 6fe4220912d19 ("io_uring/notif: implement notification stacking")
Signed-off-by: Jens Axboe <axboe@kernel.dk>
4 weeks agoiommu/amd/pgtbl: Fix possible race while increase page table level
Vasant Hegde [Sat, 13 Sep 2025 06:26:57 +0000 (06:26 +0000)]
iommu/amd/pgtbl: Fix possible race while increase page table level

The AMD IOMMU host page table implementation supports dynamic page table levels
(up to 6 levels), starting with a 3-level configuration that expands based on
IOVA address. The kernel maintains a root pointer and current page table level
to enable proper page table walks in alloc_pte()/fetch_pte() operations.

The IOMMU IOVA allocator initially starts with 32-bit address and onces its
exhuasted it switches to 64-bit address (max address is determined based
on IOMMU and device DMA capability). To support larger IOVA, AMD IOMMU
driver increases page table level.

But in unmap path (iommu_v1_unmap_pages()), fetch_pte() reads
pgtable->[root/mode] without lock. So its possible that in exteme corner case,
when increase_address_space() is updating pgtable->[root/mode], fetch_pte()
reads wrong page table level (pgtable->mode). It does compare the value with
level encoded in page table and returns NULL. This will result is
iommu_unmap ops to fail and upper layer may retry/log WARN_ON.

CPU 0                                         CPU 1
------                                       ------
map pages                                    unmap pages
alloc_pte() -> increase_address_space()      iommu_v1_unmap_pages() -> fetch_pte()
  pgtable->root = pte (new root value)
                                             READ pgtable->[mode/root]
       Reads new root, old mode
  Updates mode (pgtable->mode += 1)

Since Page table level updates are infrequent and already synchronized with a
spinlock, implement seqcount to enable lock-free read operations on the read path.

Fixes: 754265bcab7 ("iommu/amd: Fix race in increase_address_space()")
Reported-by: Alejandro Jimenez <alejandro.j.jimenez@oracle.com>
Cc: stable@vger.kernel.org
Cc: Joao Martins <joao.m.martins@oracle.com>
Cc: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Signed-off-by: Vasant Hegde <vasant.hegde@amd.com>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
4 weeks agoMerge tag 'amd-drm-fixes-6.17-2025-09-18' of https://gitlab.freedesktop.org/agd5f...
Dave Airlie [Fri, 19 Sep 2025 01:53:08 +0000 (11:53 +1000)]
Merge tag 'amd-drm-fixes-6.17-2025-09-18' of https://gitlab.freedesktop.org/agd5f/linux into drm-fixes

amd-drm-fixes-6.17-2025-09-18:

amdgpu:
- GC 11.0.1/4 cleaner shader support
- DC irq fix
- OD fix

amdkfd:
- S0ix fix

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexander.deucher@amd.com>
Link: https://lore.kernel.org/r/20250918191428.2553105-1-alexander.deucher@amd.com
4 weeks agoMerge tag 'drm-xe-fixes-2025-09-18' of https://gitlab.freedesktop.org/drm/xe/kernel...
Dave Airlie [Fri, 19 Sep 2025 01:19:36 +0000 (11:19 +1000)]
Merge tag 'drm-xe-fixes-2025-09-18' of https://gitlab.freedesktop.org/drm/xe/kernel into drm-fixes

- Release kobject for the failure path (Shuicheng)
- SRIOV PF: Drop rounddown_pow_of_two fair (Michal)
- Remove type casting on hwmon (Mallesh)
- Defer free of NVM auxiliary container to device release (Nitin)
- Fix a NULL vs IS_ERR (Dan)
- Add cleanup action in xe_device_sysfs_init (Zongyao)
- Fix error handling if PXP fails to start (Daniele)
- Set GuC RCS/CCS yield policy (Daniele)

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://lore.kernel.org/r/aMwL7vxFP1L94IML@intel.com
4 weeks agoMerge tag 'drm-misc-fixes-2025-09-18' of https://gitlab.freedesktop.org/drm/misc...
Dave Airlie [Fri, 19 Sep 2025 00:27:57 +0000 (10:27 +1000)]
Merge tag 'drm-misc-fixes-2025-09-18' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-fixes

One fix for a documentation warning, a null pointer dereference fix for
anx7625, and a mutex unlock fix for cdns-mhdp8546

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maxime Ripard <mripard@redhat.com>
Link: https://lore.kernel.org/r/20250918-orthodox-pretty-puma-1ddeea@houat
4 weeks agoMerge tag 'trace-rv-v6.17-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/trace...
Linus Torvalds [Thu, 18 Sep 2025 22:22:00 +0000 (15:22 -0700)]
Merge tag 'trace-rv-v6.17-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace

Pull runtime verifier fixes from Steven Rostedt:

 - Fix build in some RISC-V flavours

   Some system calls only are available for the 64bit RISC-V machines.
   #ifdef out the cases of clock_nanosleep and futex in the sleep
   monitor if they are not supported by the architecture.

 - Fix wrong cast, obsolete after refactoring

   Use container_of() to get to the rv_monitor structure from the
   enable_monitors_next() 'p' pointer. The assignment worked only
   because the list field used happened to be the first field of the
   structure.

 - Remove redundant include files

   Some include files were listed twice. Remove the extra ones and sort
   the includes.

 - Fix missing unlock on failure

   There was an error path that exited the rv_register_monitor()
   function without releasing a lock. Change that to goto the lock
   release.

 - Add Gabriele Monaco to be Runtime Verifier maintainer

   Gabriele is doing most of the work on RV as well as collecting
   patches. Add him to the maintainers file for Runtime Verification.

* tag 'trace-rv-v6.17-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
  rv: Add Gabriele Monaco as maintainer for Runtime Verification
  rv: Fix missing mutex unlock in rv_register_monitor()
  include/linux/rv.h: remove redundant include file
  rv: Fix wrong type cast in enabled_monitors_next()
  rv: Support systems with time64-only syscalls

4 weeks agosmb: client: fix smbdirect_recv_io leak in smbd_negotiate() error path
Stefan Metzmacher [Thu, 18 Sep 2025 01:06:46 +0000 (03:06 +0200)]
smb: client: fix smbdirect_recv_io leak in smbd_negotiate() error path

During tests of another unrelated patch I was able to trigger this
error: Objects remaining on __kmem_cache_shutdown()

Cc: Steve French <smfrench@gmail.com>
Cc: Tom Talpey <tom@talpey.com>
Cc: Long Li <longli@microsoft.com>
Cc: Namjae Jeon <linkinjeon@kernel.org>
Cc: linux-cifs@vger.kernel.org
Cc: samba-technical@lists.samba.org
Fixes: f198186aa9bb ("CIFS: SMBD: Establish SMB Direct connection")
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
4 weeks agosmb: client: fix file open check in __cifs_unlink()
Paulo Alcantara [Thu, 18 Sep 2025 15:30:32 +0000 (12:30 -0300)]
smb: client: fix file open check in __cifs_unlink()

Fix the file open check to decide whether or not silly-rename the file
in SMB2+.

Fixes: c5ea3065586d ("smb: client: fix data loss due to broken rename(2)")
Signed-off-by: Paulo Alcantara (Red Hat) <pc@manguebit.org>
Cc: Frank Sorenson <sorenson@redhat.com>
Reviewed-by: David Howells <dhowells@redhat.com>
Cc: linux-cifs@vger.kernel.org
Signed-off-by: Steve French <stfrench@microsoft.com>
4 weeks agorv: Add Gabriele Monaco as maintainer for Runtime Verification
Steven Rostedt [Thu, 11 Sep 2025 15:57:44 +0000 (11:57 -0400)]
rv: Add Gabriele Monaco as maintainer for Runtime Verification

Gabriele will start taking over managing the changes to the Runtime
Verification. Make him officially one of the maintainers.

Cc: Gabriele Monaco <gmonaco@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: https://lore.kernel.org/20250911115744.66ccade3@gandalf.local.home
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
4 weeks agoio_uring/msg_ring: kill alloc_cache for io_kiocb allocations
Jens Axboe [Thu, 18 Sep 2025 19:59:15 +0000 (13:59 -0600)]
io_uring/msg_ring: kill alloc_cache for io_kiocb allocations

A recent commit:

fc582cd26e88 ("io_uring/msg_ring: ensure io_kiocb freeing is deferred for RCU")

fixed an issue with not deferring freeing of io_kiocb structs that
msg_ring allocates to after the current RCU grace period. But this only
covers requests that don't end up in the allocation cache. If a request
goes into the alloc cache, it can get reused before it is sane to do so.
A recent syzbot report would seem to indicate that there's something
there, however it may very well just be because of the KASAN poisoning
that the alloc_cache handles manually.

Rather than attempt to make the alloc_cache sane for that use case, just
drop the usage of the alloc_cache for msg_ring request payload data.

Fixes: 50cf5f3842af ("io_uring/msg_ring: add an alloc cache for io_kiocb entries")
Link: https://lore.kernel.org/io-uring/68cc2687.050a0220.139b6.0005.GAE@google.com/
Reported-by: syzbot+baa2e0f4e02df602583e@syzkaller.appspotmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
4 weeks agoALSA: hda/realtek: Fix mute led for HP Laptop 15-dw4xx
Praful Adiga [Thu, 18 Sep 2025 16:40:18 +0000 (12:40 -0400)]
ALSA: hda/realtek: Fix mute led for HP Laptop 15-dw4xx

This laptop uses the ALC236 codec with COEF 0x7 and idx 1 to
control the mute LED. Enable the existing quirk for this device.

Signed-off-by: Praful Adiga <praful.adiga@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
4 weeks agodrm/amdgpu: suspend KFD and KGD user queues for S0ix
Alex Deucher [Wed, 17 Sep 2025 16:42:11 +0000 (12:42 -0400)]
drm/amdgpu: suspend KFD and KGD user queues for S0ix

We need to make sure the user queues are preempted so
GFX can enter gfxoff.

Reviewed-by: Mario Limonciello (AMD) <superm1@kernel.org>
Tested-by: David Perry <david.perry@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit f8b367e6fa1716cab7cc232b9e3dff29187fc99d)
Cc: stable@vger.kernel.org
4 weeks agodrm/amdkfd: add proper handling for S0ix
Alex Deucher [Wed, 17 Sep 2025 16:42:09 +0000 (12:42 -0400)]
drm/amdkfd: add proper handling for S0ix

When in S0i3, the GFX state is retained, so all we need to do
is stop the runlist so GFX can enter gfxoff.

Reviewed-by: Mario Limonciello (AMD) <superm1@kernel.org>
Tested-by: David Perry <david.perry@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit 4bfa8609934dbf39bbe6e75b4f971469384b50b1)
Cc: stable@vger.kernel.org
4 weeks agoMerge tag 'net-6.17-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Linus Torvalds [Thu, 18 Sep 2025 17:22:02 +0000 (10:22 -0700)]
Merge tag 'net-6.17-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Pull networking fixes from Jakub Kicinski:
 "Including fixes from wireless. No known regressions at this point.

  Current release - fix to a fix:

   - eth: Revert "net/mlx5e: Update and set Xon/Xoff upon port speed set"

   - wifi: iwlwifi: pcie: fix byte count table for 7000/8000 devices

   - net: clear sk->sk_ino in sk_set_socket(sk, NULL), fix CRIU

  Previous releases - regressions:

   - bonding: set random address only when slaves already exist

   - rxrpc: fix untrusted unsigned subtract

   - eth:
       - ice: fix Rx page leak on multi-buffer frames
       - mlx5: don't return mlx5_link_info table when speed is unknown

  Previous releases - always broken:

   - tls: make sure to abort the stream if headers are bogus

   - tcp: fix null-deref when using TCP-AO with TCP_REPAIR

   - dpll: fix skipping last entry in clock quality level reporting

   - eth: qed: don't collect too many protection override GRC elements,
     fix memory corruption"

* tag 'net-6.17-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (51 commits)
  octeontx2-pf: Fix use-after-free bugs in otx2_sync_tstamp()
  cnic: Fix use-after-free bugs in cnic_delete_task
  devlink rate: Remove unnecessary 'static' from a couple places
  MAINTAINERS: update sundance entry
  net: liquidio: fix overflow in octeon_init_instr_queue()
  net: clear sk->sk_ino in sk_set_socket(sk, NULL)
  Revert "net/mlx5e: Update and set Xon/Xoff upon port speed set"
  selftests: tls: test skb copy under mem pressure and OOB
  tls: make sure to abort the stream if headers are bogus
  selftest: packetdrill: Add tcp_fastopen_server_reset-after-disconnect.pkt.
  tcp: Clear tcp_sk(sk)->fastopen_rsk in tcp_disconnect().
  octeon_ep: fix VF MAC address lifecycle handling
  selftests: bonding: add vlan over bond testing
  bonding: don't set oif to bond dev when getting NS target destination
  net: rfkill: gpio: Fix crash due to dereferencering uninitialized pointer
  net/mlx5e: Add a miss level for ipsec crypto offload
  net/mlx5e: Harden uplink netdev access against device unbind
  MAINTAINERS: make the DPLL entry cover drivers
  doc/netlink: Fix typos in operation attributes
  igc: don't fail igc_probe() on LED setup error
  ...

4 weeks agoMerge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Linus Torvalds [Thu, 18 Sep 2025 16:42:55 +0000 (09:42 -0700)]
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull kvm fixes from Paolo Bonzini:
 "These are mostly Oliver's Arm changes: lock ordering fixes for the
  vGIC, and reverts for a buggy attempt to avoid RCU stalls on large
  VMs.

  Arm:

   - Invalidate nested MMUs upon freeing the PGD to avoid WARNs when
     visiting from an MMU notifier

   - Fixes to the TLB match process and TLB invalidation range for
     managing the VCNR pseudo-TLB

   - Prevent SPE from erroneously profiling guests due to UNKNOWN reset
     values in PMSCR_EL1

   - Fix save/restore of host MDCR_EL2 to account for eagerly
     programming at vcpu_load() on VHE systems

   - Correct lock ordering when dealing with VGIC LPIs, avoiding
     scenarios where an xarray's spinlock was nested with a *raw*
     spinlock

   - Permit stage-2 read permission aborts which are possible in the
     case of NV depending on the guest hypervisor's stage-2 translation

   - Call raw_spin_unlock() instead of the internal spinlock API

   - Fix parameter ordering when assigning VBAR_EL1

   - Reverted a couple of fixes for RCU stalls when destroying a stage-2
     page table.

     There appears to be some nasty refcounting / UAF issues lurking in
     those patches and the band-aid we tried to apply didn't hold.

  s390:

   - mm fixes, including userfaultfd bug fix

  x86:

   - Sync the vTPR from the local APIC to the VMCB even when AVIC is
     active.

     This fixes a bug where host updates to the vTPR, e.g. via
     KVM_SET_LAPIC or emulation of a guest access, are lost and result
     in interrupt delivery issues in the guest"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: SVM: Sync TPR from LAPIC into VMCB::V_TPR even if AVIC is active
  Revert "KVM: arm64: Split kvm_pgtable_stage2_destroy()"
  Revert "KVM: arm64: Reschedule as needed when destroying the stage-2 page-tables"
  KVM: arm64: vgic: fix incorrect spinlock API usage
  KVM: arm64: Remove stage 2 read fault check
  KVM: arm64: Fix parameter ordering for VBAR_EL1 assignment
  KVM: arm64: nv: Fix incorrect VNCR invalidation range calculation
  KVM: arm64: vgic-v3: Indicate vgic_put_irq() may take LPI xarray lock
  KVM: arm64: vgic-v3: Don't require IRQs be disabled for LPI xarray lock
  KVM: arm64: vgic-v3: Erase LPIs from xarray outside of raw spinlocks
  KVM: arm64: Spin off release helper from vgic_put_irq()
  KVM: arm64: vgic-v3: Use bare refcount for VGIC LPIs
  KVM: arm64: vgic: Drop stale comment on IRQ active state
  KVM: arm64: VHE: Save and restore host MDCR_EL2 value correctly
  KVM: arm64: Initialize PMSCR_EL1 when in VHE
  KVM: arm64: nv: fix VNCR TLB ASID match logic for non-Global entries
  KVM: s390: Fix FOLL_*/FAULT_FLAG_* confusion
  KVM: s390: Fix incorrect usage of mmu_notifier_register()
  KVM: s390: Fix access to unavailable adapter indicator pages during postcopy
  KVM: arm64: Mark freed S2 MMUs as invalid

4 weeks agoio_uring: include dying ring in task_work "should cancel" state
Jens Axboe [Thu, 18 Sep 2025 16:21:14 +0000 (10:21 -0600)]
io_uring: include dying ring in task_work "should cancel" state

When running task_work for an exiting task, rather than perform the
issue retry attempt, the task_work is canceled. However, this isn't
done for a ring that has been closed. This can lead to requests being
successfully completed post the ring being closed, which is somewhat
confusing and surprising to an application.

Rather than just check the task exit state, also include the ring
ref state in deciding whether or not to terminate a given request when
run from task_work.

Cc: stable@vger.kernel.org # 6.1+
Link: https://github.com/axboe/liburing/discussions/1459
Reported-by: Benedek Thaler <thaler@thaler.hu>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
4 weeks agoMerge tag 'platform-drivers-x86-v6.17-4' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Thu, 18 Sep 2025 16:22:34 +0000 (09:22 -0700)]
Merge tag 'platform-drivers-x86-v6.17-4' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86

Pull x86 platform driver fixes from Ilpo Järvinen:
 "Fixes and new HW support:

   - amd/pmc: Add MECHREVO Yilong15Pro to spurious_8042 list

   - amd/pmf: Support new ACPI ID AMDI0108

   - asus-wmi: Re-add extra keys to ignore_key_wlan quirk

   - oxpec: Add support for AOKZOE A1X and OneXPlayer X1Pro EVA-02"

* tag 'platform-drivers-x86-v6.17-4' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86:
  platform/x86: asus-wmi: Re-add extra keys to ignore_key_wlan quirk
  platform/x86/amd/pmf: Support new ACPI ID AMDI0108
  platform/x86: oxpec: Add support for AOKZOE A1X
  platform/x86: oxpec: Add support for OneXPlayer X1Pro EVA-02
  platform/x86/amd/pmc: Add MECHREVO Yilong15Pro to spurious_8042 list

4 weeks agoMerge tag 'uml-for-6.17-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/uml...
Linus Torvalds [Thu, 18 Sep 2025 16:18:27 +0000 (09:18 -0700)]
Merge tag 'uml-for-6.17-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/uml/linux

Pull UML fixes from Johannes Berg:
 "A few fixes for UML, which I'd meant to send earlier but then forgot.

  All of them are pretty long-standing issues that are either not really
  happening (the UAF), in rarely used code (the FD buffer issue), or an
  issue only for some host configurations (the executable stack):

   - mark stack not executable to work on more modern systems with
     selinux

   - fix use-after-free in a virtio error path

   - fix stack buffer overflow in external unix socket FD receive
     function"

* tag 'uml-for-6.17-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/uml/linux:
  um: Fix FD copy size in os_rcv_fd_msg()
  um: virtio_uml: Fix use-after-free after put_device in probe
  um: Don't mark stack executable

4 weeks agoocteontx2-pf: Fix use-after-free bugs in otx2_sync_tstamp()
Duoming Zhou [Wed, 17 Sep 2025 06:38:53 +0000 (14:38 +0800)]
octeontx2-pf: Fix use-after-free bugs in otx2_sync_tstamp()

The original code relies on cancel_delayed_work() in otx2_ptp_destroy(),
which does not ensure that the delayed work item synctstamp_work has fully
completed if it was already running. This leads to use-after-free scenarios
where otx2_ptp is deallocated by otx2_ptp_destroy(), while synctstamp_work
remains active and attempts to dereference otx2_ptp in otx2_sync_tstamp().
Furthermore, the synctstamp_work is cyclic, the likelihood of triggering
the bug is nonnegligible.

A typical race condition is illustrated below:

CPU 0 (cleanup)           | CPU 1 (delayed work callback)
otx2_remove()             |
  otx2_ptp_destroy()      | otx2_sync_tstamp()
    cancel_delayed_work() |
    kfree(ptp)            |
                          |   ptp = container_of(...); //UAF
                          |   ptp-> //UAF

This is confirmed by a KASAN report:

BUG: KASAN: slab-use-after-free in __run_timer_base.part.0+0x7d7/0x8c0
Write of size 8 at addr ffff88800aa09a18 by task bash/136
...
Call Trace:
 <IRQ>
 dump_stack_lvl+0x55/0x70
 print_report+0xcf/0x610
 ? __run_timer_base.part.0+0x7d7/0x8c0
 kasan_report+0xb8/0xf0
 ? __run_timer_base.part.0+0x7d7/0x8c0
 __run_timer_base.part.0+0x7d7/0x8c0
 ? __pfx___run_timer_base.part.0+0x10/0x10
 ? __pfx_read_tsc+0x10/0x10
 ? ktime_get+0x60/0x140
 ? lapic_next_event+0x11/0x20
 ? clockevents_program_event+0x1d4/0x2a0
 run_timer_softirq+0xd1/0x190
 handle_softirqs+0x16a/0x550
 irq_exit_rcu+0xaf/0xe0
 sysvec_apic_timer_interrupt+0x70/0x80
 </IRQ>
...
Allocated by task 1:
 kasan_save_stack+0x24/0x50
 kasan_save_track+0x14/0x30
 __kasan_kmalloc+0x7f/0x90
 otx2_ptp_init+0xb1/0x860
 otx2_probe+0x4eb/0xc30
 local_pci_probe+0xdc/0x190
 pci_device_probe+0x2fe/0x470
 really_probe+0x1ca/0x5c0
 __driver_probe_device+0x248/0x310
 driver_probe_device+0x44/0x120
 __driver_attach+0xd2/0x310
 bus_for_each_dev+0xed/0x170
 bus_add_driver+0x208/0x500
 driver_register+0x132/0x460
 do_one_initcall+0x89/0x300
 kernel_init_freeable+0x40d/0x720
 kernel_init+0x1a/0x150
 ret_from_fork+0x10c/0x1a0
 ret_from_fork_asm+0x1a/0x30

Freed by task 136:
 kasan_save_stack+0x24/0x50
 kasan_save_track+0x14/0x30
 kasan_save_free_info+0x3a/0x60
 __kasan_slab_free+0x3f/0x50
 kfree+0x137/0x370
 otx2_ptp_destroy+0x38/0x80
 otx2_remove+0x10d/0x4c0
 pci_device_remove+0xa6/0x1d0
 device_release_driver_internal+0xf8/0x210
 pci_stop_bus_device+0x105/0x150
 pci_stop_and_remove_bus_device_locked+0x15/0x30
 remove_store+0xcc/0xe0
 kernfs_fop_write_iter+0x2c3/0x440
 vfs_write+0x871/0xd70
 ksys_write+0xee/0x1c0
 do_syscall_64+0xac/0x280
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
...

Replace cancel_delayed_work() with cancel_delayed_work_sync() to ensure
that the delayed work item is properly canceled before the otx2_ptp is
deallocated.

This bug was initially identified through static analysis. To reproduce
and test it, I simulated the OcteonTX2 PCI device in QEMU and introduced
artificial delays within the otx2_sync_tstamp() function to increase the
likelihood of triggering the bug.

Fixes: 2958d17a8984 ("octeontx2-pf: Add support for ptp 1-step mode on CN10K silicon")
Signed-off-by: Duoming Zhou <duoming@zju.edu.cn>
Reviewed-by: Vadim Fedorenko <vadim.fedorenko@linux.dev>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
4 weeks agocnic: Fix use-after-free bugs in cnic_delete_task
Duoming Zhou [Wed, 17 Sep 2025 05:46:02 +0000 (13:46 +0800)]
cnic: Fix use-after-free bugs in cnic_delete_task

The original code uses cancel_delayed_work() in cnic_cm_stop_bnx2x_hw(),
which does not guarantee that the delayed work item 'delete_task' has
fully completed if it was already running. Additionally, the delayed work
item is cyclic, the flush_workqueue() in cnic_cm_stop_bnx2x_hw() only
blocks and waits for work items that were already queued to the
workqueue prior to its invocation. Any work items submitted after
flush_workqueue() is called are not included in the set of tasks that the
flush operation awaits. This means that after the cyclic work items have
finished executing, a delayed work item may still exist in the workqueue.
This leads to use-after-free scenarios where the cnic_dev is deallocated
by cnic_free_dev(), while delete_task remains active and attempt to
dereference cnic_dev in cnic_delete_task().

A typical race condition is illustrated below:

CPU 0 (cleanup)              | CPU 1 (delayed work callback)
cnic_netdev_event()          |
  cnic_stop_hw()             | cnic_delete_task()
    cnic_cm_stop_bnx2x_hw()  | ...
      cancel_delayed_work()  | /* the queue_delayed_work()
      flush_workqueue()      |    executes after flush_workqueue()*/
                             | queue_delayed_work()
  cnic_free_dev(dev)//free   | cnic_delete_task() //new instance
                             |   dev = cp->dev; //use

Replace cancel_delayed_work() with cancel_delayed_work_sync() to ensure
that the cyclic delayed work item is properly canceled and that any
ongoing execution of the work item completes before the cnic_dev is
deallocated. Furthermore, since cancel_delayed_work_sync() uses
__flush_work(work, true) to synchronously wait for any currently
executing instance of the work item to finish, the flush_workqueue()
becomes redundant and should be removed.

This bug was identified through static analysis. To reproduce the issue
and validate the fix, I simulated the cnic PCI device in QEMU and
introduced intentional delays â€” such as inserting calls to ssleep()
within the cnic_delete_task() function â€” to increase the likelihood
of triggering the bug.

Fixes: fdf24086f475 ("cnic: Defer iscsi connection cleanup")
Signed-off-by: Duoming Zhou <duoming@zju.edu.cn>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
4 weeks agodevlink rate: Remove unnecessary 'static' from a couple places
Cosmin Ratiu [Thu, 18 Sep 2025 10:15:06 +0000 (13:15 +0300)]
devlink rate: Remove unnecessary 'static' from a couple places

devlink_rate_node_get_by_name() and devlink_rate_nodes_destroy() have a
couple of unnecessary static variables for iterating over devlink rates.

This could lead to races/corruption/unhappiness if two concurrent
operations execute the same function.

Remove 'static' from both. It's amazing this was missed for 4+ years.
While at it, I confirmed there are no more examples of this mistake in
net/ with 1, 2 or 3 levels of indentation.

Fixes: a8ecb93ef03d ("devlink: Introduce rate nodes")
Signed-off-by: Cosmin Ratiu <cratiu@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
4 weeks agoMAINTAINERS: update sundance entry
Denis Kirjanov [Thu, 18 Sep 2025 09:15:56 +0000 (12:15 +0300)]
MAINTAINERS: update sundance entry

Signed-off-by: Denis Kirjanov <kirjanov@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
4 weeks agonet: liquidio: fix overflow in octeon_init_instr_queue()
Alexey Nepomnyashih [Wed, 17 Sep 2025 15:30:58 +0000 (15:30 +0000)]
net: liquidio: fix overflow in octeon_init_instr_queue()

The expression `(conf->instr_type == 64) << iq_no` can overflow because
`iq_no` may be as high as 64 (`CN23XX_MAX_RINGS_PER_PF`). Casting the
operand to `u64` ensures correct 64-bit arithmetic.

Fixes: f21fb3ed364b ("Add support of Cavium Liquidio ethernet adapters")
Signed-off-by: Alexey Nepomnyashih <sdl@nppct.ru>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
4 weeks agonet: clear sk->sk_ino in sk_set_socket(sk, NULL)
Eric Dumazet [Wed, 17 Sep 2025 13:53:37 +0000 (13:53 +0000)]
net: clear sk->sk_ino in sk_set_socket(sk, NULL)

Andrei Vagin reported that blamed commit broke CRIU.

Indeed, while we want to keep sk_uid unchanged when a socket
is cloned, we want to clear sk->sk_ino.

Otherwise, sock_diag might report multiple sockets sharing
the same inode number.

Move the clearing part from sock_orphan() to sk_set_socket(sk, NULL),
called both from sock_orphan() and sk_clone_lock().

Fixes: 5d6b58c932ec ("net: lockless sock_i_ino()")
Closes: https://lore.kernel.org/netdev/aMhX-VnXkYDpKd9V@google.com/
Closes: https://github.com/checkpoint-restore/criu/issues/2744
Reported-by: Andrei Vagin <avagin@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Andrei Vagin <avagin@google.com>
Link: https://patch.msgid.link/20250917135337.1736101-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
4 weeks agoRevert "net/mlx5e: Update and set Xon/Xoff upon port speed set"
Tariq Toukan [Wed, 17 Sep 2025 13:48:54 +0000 (16:48 +0300)]
Revert "net/mlx5e: Update and set Xon/Xoff upon port speed set"

This reverts commit d24341740fe48add8a227a753e68b6eedf4b385a.
It causes errors when trying to configure QoS, as well as
loss of L2 connectivity (on multi-host devices).

Reported-by: Jakub Kicinski <kuba@kernel.org>
Link: https://lore.kernel.org/20250910170011.70528106@kernel.org
Fixes: d24341740fe4 ("net/mlx5e: Update and set Xon/Xoff upon port speed set")
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
4 weeks agoLoongArch: KVM: Avoid copy_*_user() with lock hold in kvm_pch_pic_regs_access()
Bibo Mao [Thu, 18 Sep 2025 11:44:25 +0000 (19:44 +0800)]
LoongArch: KVM: Avoid copy_*_user() with lock hold in kvm_pch_pic_regs_access()

Function copy_from_user() and copy_to_user() may sleep because of page
fault, and they cannot be called in spin_lock hold context. Here move
function calling of copy_from_user() and copy_to_user() out of spinlock
context in function kvm_pch_pic_regs_access().

Otherwise there will be possible warning such as:

BUG: sleeping function called from invalid context at include/linux/uaccess.h:192
in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 6292, name: qemu-system-loo
preempt_count: 1, expected: 0
RCU nest depth: 0, expected: 0
INFO: lockdep is turned off.
irq event stamp: 0
hardirqs last  enabled at (0): [<0000000000000000>] 0x0
hardirqs last disabled at (0): [<9000000004c4a554>] copy_process+0x90c/0x1d40
softirqs last  enabled at (0): [<9000000004c4a554>] copy_process+0x90c/0x1d40
softirqs last disabled at (0): [<0000000000000000>] 0x0
CPU: 41 UID: 0 PID: 6292 Comm: qemu-system-loo Tainted: G W 6.17.0-rc3+ #31 PREEMPT(full)
Tainted: [W]=WARN
Stack : 0000000000000076 0000000000000000 9000000004c28264 9000100092ff4000
        9000100092ff7b80 9000100092ff7b88 0000000000000000 9000100092ff7cc8
        9000100092ff7cc0 9000100092ff7cc0 9000100092ff7a00 0000000000000001
        0000000000000001 9000100092ff7b88 947d2f9216a5e8b9 900010008773d880
        00000000ffff8b9f fffffffffffffffe 0000000000000ba1 fffffffffffffffe
        000000000000003e 900000000825a15b 000010007ad38000 9000100092ff7ec0
        0000000000000000 0000000000000000 9000000006f3ac60 9000000007252000
        0000000000000000 00007ff746ff2230 0000000000000053 9000200088a021b0
        0000555556c9d190 0000000000000000 9000000004c2827c 000055556cfb5f40
        00000000000000b0 0000000000000007 0000000000000007 0000000000071c1d
Call Trace:
[<9000000004c2827c>] show_stack+0x5c/0x180
[<9000000004c20fac>] dump_stack_lvl+0x94/0xe4
[<9000000004c99c7c>] __might_resched+0x26c/0x290
[<9000000004f68968>] __might_fault+0x20/0x88
[<ffff800002311de0>] kvm_pch_pic_regs_access.isra.0+0x88/0x380 [kvm]
[<ffff8000022f8514>] kvm_device_ioctl+0x194/0x290 [kvm]
[<900000000506b0d8>] sys_ioctl+0x388/0x1010
[<90000000063ed210>] do_syscall+0xb0/0x2d8
[<9000000004c25ef8>] handle_syscall+0xb8/0x158

Cc: stable@vger.kernel.org
Fixes: d206d95148732 ("LoongArch: KVM: Add PCHPIC user mode read and write functions")
Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
4 weeks agoLoongArch: KVM: Avoid copy_*_user() with lock hold in kvm_eiointc_sw_status_access()
Bibo Mao [Thu, 18 Sep 2025 11:44:22 +0000 (19:44 +0800)]
LoongArch: KVM: Avoid copy_*_user() with lock hold in kvm_eiointc_sw_status_access()

Function copy_from_user() and copy_to_user() may sleep because of page
fault, and they cannot be called in spin_lock hold context. Here move
funtcion calling of copy_from_user() and copy_to_user() out of function
kvm_eiointc_sw_status_access().

Otherwise there will be possible warning such as:

BUG: sleeping function called from invalid context at include/linux/uaccess.h:192
in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 6292, name: qemu-system-loo
preempt_count: 1, expected: 0
RCU nest depth: 0, expected: 0
INFO: lockdep is turned off.
irq event stamp: 0
hardirqs last  enabled at (0): [<0000000000000000>] 0x0
hardirqs last disabled at (0): [<9000000004c4a554>] copy_process+0x90c/0x1d40
softirqs last  enabled at (0): [<9000000004c4a554>] copy_process+0x90c/0x1d40
softirqs last disabled at (0): [<0000000000000000>] 0x0
CPU: 41 UID: 0 PID: 6292 Comm: qemu-system-loo Tainted: G W 6.17.0-rc3+ #31 PREEMPT(full)
Tainted: [W]=WARN
Stack : 0000000000000076 0000000000000000 9000000004c28264 9000100092ff4000
        9000100092ff7b80 9000100092ff7b88 0000000000000000 9000100092ff7cc8
        9000100092ff7cc0 9000100092ff7cc0 9000100092ff7a00 0000000000000001
        0000000000000001 9000100092ff7b88 947d2f9216a5e8b9 900010008773d880
        00000000ffff8b9f fffffffffffffffe 0000000000000ba1 fffffffffffffffe
        000000000000003e 900000000825a15b 000010007ad38000 9000100092ff7ec0
        0000000000000000 0000000000000000 9000000006f3ac60 9000000007252000
        0000000000000000 00007ff746ff2230 0000000000000053 9000200088a021b0
        0000555556c9d190 0000000000000000 9000000004c2827c 000055556cfb5f40
        00000000000000b0 0000000000000007 0000000000000007 0000000000071c1d
Call Trace:
[<9000000004c2827c>] show_stack+0x5c/0x180
[<9000000004c20fac>] dump_stack_lvl+0x94/0xe4
[<9000000004c99c7c>] __might_resched+0x26c/0x290
[<9000000004f68968>] __might_fault+0x20/0x88
[<ffff800002311de0>] kvm_eiointc_sw_status_access.isra.0+0x88/0x380 [kvm]
[<ffff8000022f8514>] kvm_device_ioctl+0x194/0x290 [kvm]
[<900000000506b0d8>] sys_ioctl+0x388/0x1010
[<90000000063ed210>] do_syscall+0xb0/0x2d8
[<9000000004c25ef8>] handle_syscall+0xb8/0x158

Cc: stable@vger.kernel.org
Fixes: 1ad7efa552fd5 ("LoongArch: KVM: Add EIOINTC user mode read and write functions")
Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
4 weeks agoLoongArch: KVM: Avoid copy_*_user() with lock hold in kvm_eiointc_regs_access()
Bibo Mao [Thu, 18 Sep 2025 11:44:22 +0000 (19:44 +0800)]
LoongArch: KVM: Avoid copy_*_user() with lock hold in kvm_eiointc_regs_access()

Function copy_from_user() and copy_to_user() may sleep because of page
fault, and they cannot be called in spin_lock hold context. Here move
function calling of copy_from_user() and copy_to_user() before spinlock
context in function kvm_eiointc_ctrl_access().

Otherwise there will be possible warning such as:

BUG: sleeping function called from invalid context at include/linux/uaccess.h:192
in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 6292, name: qemu-system-loo
preempt_count: 1, expected: 0
RCU nest depth: 0, expected: 0
INFO: lockdep is turned off.
irq event stamp: 0
hardirqs last  enabled at (0): [<0000000000000000>] 0x0
hardirqs last disabled at (0): [<9000000004c4a554>] copy_process+0x90c/0x1d40
softirqs last  enabled at (0): [<9000000004c4a554>] copy_process+0x90c/0x1d40
softirqs last disabled at (0): [<0000000000000000>] 0x0
CPU: 41 UID: 0 PID: 6292 Comm: qemu-system-loo Tainted: G W 6.17.0-rc3+ #31 PREEMPT(full)
Tainted: [W]=WARN
Stack : 0000000000000076 0000000000000000 9000000004c28264 9000100092ff4000
        9000100092ff7b80 9000100092ff7b88 0000000000000000 9000100092ff7cc8
        9000100092ff7cc0 9000100092ff7cc0 9000100092ff7a00 0000000000000001
        0000000000000001 9000100092ff7b88 947d2f9216a5e8b9 900010008773d880
        00000000ffff8b9f fffffffffffffffe 0000000000000ba1 fffffffffffffffe
        000000000000003e 900000000825a15b 000010007ad38000 9000100092ff7ec0
        0000000000000000 0000000000000000 9000000006f3ac60 9000000007252000
        0000000000000000 00007ff746ff2230 0000000000000053 9000200088a021b0
        0000555556c9d190 0000000000000000 9000000004c2827c 000055556cfb5f40
        00000000000000b0 0000000000000007 0000000000000007 0000000000071c1d
Call Trace:
[<9000000004c2827c>] show_stack+0x5c/0x180
[<9000000004c20fac>] dump_stack_lvl+0x94/0xe4
[<9000000004c99c7c>] __might_resched+0x26c/0x290
[<9000000004f68968>] __might_fault+0x20/0x88
[<ffff800002311de0>] kvm_eiointc_regs_access.isra.0+0x88/0x380 [kvm]
[<ffff8000022f8514>] kvm_device_ioctl+0x194/0x290 [kvm]
[<900000000506b0d8>] sys_ioctl+0x388/0x1010
[<90000000063ed210>] do_syscall+0xb0/0x2d8
[<9000000004c25ef8>] handle_syscall+0xb8/0x158

Cc: stable@vger.kernel.org
Fixes: 1ad7efa552fd5 ("LoongArch: KVM: Add EIOINTC user mode read and write functions")
Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
4 weeks agoLoongArch: KVM: Avoid copy_*_user() with lock hold in kvm_eiointc_ctrl_access()
Bibo Mao [Thu, 18 Sep 2025 11:44:22 +0000 (19:44 +0800)]
LoongArch: KVM: Avoid copy_*_user() with lock hold in kvm_eiointc_ctrl_access()

Function copy_from_user() and copy_to_user() may sleep because of page
fault, and they cannot be called in spin_lock hold context. Here move
function calling of copy_from_user() and copy_to_user() before spinlock
context in function kvm_eiointc_ctrl_access().

Otherwise there will be possible warning such as:

BUG: sleeping function called from invalid context at include/linux/uaccess.h:192
in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 6292, name: qemu-system-loo
preempt_count: 1, expected: 0
RCU nest depth: 0, expected: 0
INFO: lockdep is turned off.
irq event stamp: 0
hardirqs last  enabled at (0): [<0000000000000000>] 0x0
hardirqs last disabled at (0): [<9000000004c4a554>] copy_process+0x90c/0x1d40
softirqs last  enabled at (0): [<9000000004c4a554>] copy_process+0x90c/0x1d40
softirqs last disabled at (0): [<0000000000000000>] 0x0
CPU: 41 UID: 0 PID: 6292 Comm: qemu-system-loo Tainted: G W 6.17.0-rc3+ #31 PREEMPT(full)
Tainted: [W]=WARN
Stack : 0000000000000076 0000000000000000 9000000004c28264 9000100092ff4000
        9000100092ff7b80 9000100092ff7b88 0000000000000000 9000100092ff7cc8
        9000100092ff7cc0 9000100092ff7cc0 9000100092ff7a00 0000000000000001
        0000000000000001 9000100092ff7b88 947d2f9216a5e8b9 900010008773d880
        00000000ffff8b9f fffffffffffffffe 0000000000000ba1 fffffffffffffffe
        000000000000003e 900000000825a15b 000010007ad38000 9000100092ff7ec0
        0000000000000000 0000000000000000 9000000006f3ac60 9000000007252000
        0000000000000000 00007ff746ff2230 0000000000000053 9000200088a021b0
        0000555556c9d190 0000000000000000 9000000004c2827c 000055556cfb5f40
        00000000000000b0 0000000000000007 0000000000000007 0000000000071c1d
Call Trace:
[<9000000004c2827c>] show_stack+0x5c/0x180
[<9000000004c20fac>] dump_stack_lvl+0x94/0xe4
[<9000000004c99c7c>] __might_resched+0x26c/0x290
[<9000000004f68968>] __might_fault+0x20/0x88
[<ffff800002311de0>] kvm_eiointc_ctrl_access.isra.0+0x88/0x380 [kvm]
[<ffff8000022f8514>] kvm_device_ioctl+0x194/0x290 [kvm]
[<900000000506b0d8>] sys_ioctl+0x388/0x1010
[<90000000063ed210>] do_syscall+0xb0/0x2d8
[<9000000004c25ef8>] handle_syscall+0xb8/0x158

Cc: stable@vger.kernel.org
Fixes: 1ad7efa552fd5 ("LoongArch: KVM: Add EIOINTC user mode read and write functions")
Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
4 weeks agoLoongArch: KVM: Fix VM migration failure with PTW enabled
Bibo Mao [Thu, 18 Sep 2025 11:44:22 +0000 (19:44 +0800)]
LoongArch: KVM: Fix VM migration failure with PTW enabled

With PTW disabled system, bit _PAGE_DIRTY is a HW bit for page writing.
However with PTW enabled system, bit _PAGE_WRITE is also a "HW bit" for
page writing, because hardware synchronizes _PAGE_WRITE to _PAGE_DIRTY
automatically. Previously, _PAGE_WRITE is treated as a SW bit to record
the page writeable attribute for the fast page fault handling in the
secondary MMU, however with PTW enabled machine, this bit is used by HW
already (so setting it will silence the TLB modify exception).

Here define KVM_PAGE_WRITEABLE with the SW bit _PAGE_MODIFIED, so that
it can work on both PTW disabled and enabled machines. And for HW write
bits, both _PAGE_DIRTY and _PAGE_WRITE are set or clear together.

Cc: stable@vger.kernel.org
Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
4 weeks agoLoongArch: KVM: Remove unused returns and semicolons
Tao Cui [Thu, 18 Sep 2025 11:44:22 +0000 (19:44 +0800)]
LoongArch: KVM: Remove unused returns and semicolons

The default branch has already handled all undefined cases, so the final
return statement is redundant. Redundant semicolons are removed, too.

Cc: stable@vger.kernel.org
Reviewed-by: Bibo Mao <maobibo@loongson.cn>
Signed-off-by: Tao Cui <cuitao@kylinos.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
4 weeks agoLoongArch: vDSO: Check kcalloc() result in init_vdso()
Guangshuo Li [Thu, 18 Sep 2025 11:44:10 +0000 (19:44 +0800)]
LoongArch: vDSO: Check kcalloc() result in init_vdso()

Add a NULL-pointer check after the kcalloc() call in init_vdso(). If
allocation fails, return -ENOMEM to prevent a possible dereference of
vdso_info.code_mapping.pages when it is NULL.

Cc: stable@vger.kernel.org
Fixes: 2ed119aef60d ("LoongArch: Set correct size for vDSO code mapping")
Signed-off-by: Guangshuo Li <202321181@mail.sdu.edu.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
4 weeks agoLoongArch: Fix unreliable stack for live patching
Tiezhu Yang [Thu, 18 Sep 2025 11:44:08 +0000 (19:44 +0800)]
LoongArch: Fix unreliable stack for live patching

When testing the kernel live patching with "modprobe livepatch-sample",
there is a timeout over 15 seconds from "starting patching transition"
to "patching complete". The dmesg command shows "unreliable stack" for
user tasks in debug mode, here is one of the messages:

  livepatch: klp_try_switch_task: bash:1193 has an unreliable stack

The "unreliable stack" is because it can not unwind from do_syscall()
to its previous frame handle_syscall(). It should use fp to find the
original stack top due to secondary stack in do_syscall(), but fp is
not used for some other functions, then fp can not be restored by the
next frame of do_syscall(), so it is necessary to save fp if task is
not current, in order to get the stack top of do_syscall().

Here are the call chains:

  klp_enable_patch()
    klp_try_complete_transition()
      klp_try_switch_task()
        klp_check_and_switch_task()
          klp_check_stack()
            stack_trace_save_tsk_reliable()
              arch_stack_walk_reliable()

When executing "rmmod livepatch-sample", there exists a similar issue.
With this patch, it takes a short time for patching and unpatching.

Before:

  # modprobe livepatch-sample
  # dmesg -T | tail -3
  [Sat Sep  6 11:00:20 2025] livepatch: 'livepatch_sample': starting patching transition
  [Sat Sep  6 11:00:35 2025] livepatch: signaling remaining tasks
  [Sat Sep  6 11:00:36 2025] livepatch: 'livepatch_sample': patching complete

  # echo 0 > /sys/kernel/livepatch/livepatch_sample/enabled
  # rmmod livepatch_sample
  rmmod: ERROR: Module livepatch_sample is in use
  # rmmod livepatch_sample
  # dmesg -T | tail -3
  [Sat Sep  6 11:06:05 2025] livepatch: 'livepatch_sample': starting unpatching transition
  [Sat Sep  6 11:06:20 2025] livepatch: signaling remaining tasks
  [Sat Sep  6 11:06:21 2025] livepatch: 'livepatch_sample': unpatching complete

After:

  # modprobe livepatch-sample
  # dmesg -T | tail -2
  [Tue Sep 16 16:19:30 2025] livepatch: 'livepatch_sample': starting patching transition
  [Tue Sep 16 16:19:31 2025] livepatch: 'livepatch_sample': patching complete

  # echo 0 > /sys/kernel/livepatch/livepatch_sample/enabled
  # rmmod livepatch_sample
  # dmesg -T | tail -2
  [Tue Sep 16 16:19:36 2025] livepatch: 'livepatch_sample': starting unpatching transition
  [Tue Sep 16 16:19:37 2025] livepatch: 'livepatch_sample': unpatching complete

Cc: stable@vger.kernel.org # v6.9+
Fixes: 199cc14cb4f1 ("LoongArch: Add kernel livepatching support")
Reported-by: Xi Zhang <zhangxi@kylinos.cn>
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
4 weeks agoLoongArch: Replace sprintf() with sysfs_emit()
Tao Cui [Thu, 18 Sep 2025 11:44:04 +0000 (19:44 +0800)]
LoongArch: Replace sprintf() with sysfs_emit()

As Documentation/filesystems/sysfs.rst suggested, show() should only use
sysfs_emit() or sysfs_emit_at() when formatting the value to be returned
to user space.

No functional change intended.

Cc: stable@vger.kernel.org
Signed-off-by: Tao Cui <cuitao@kylinos.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
4 weeks agoLoongArch: Check the return value when creating kobj
Tao Cui [Thu, 18 Sep 2025 11:44:04 +0000 (19:44 +0800)]
LoongArch: Check the return value when creating kobj

Add a check for the return value of kobject_create_and_add(), to ensure
that the kobj allocation succeeds for later use.

Cc: stable@vger.kernel.org
Signed-off-by: Tao Cui <cuitao@kylinos.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
4 weeks agoLoongArch: Align ACPI structures if ARCH_STRICT_ALIGN enabled
Huacai Chen [Thu, 18 Sep 2025 11:44:01 +0000 (19:44 +0800)]
LoongArch: Align ACPI structures if ARCH_STRICT_ALIGN enabled

ARCH_STRICT_ALIGN is used for hardware without UAL, now it only control
the -mstrict-align flag. However, ACPI structures are packed by default
so will cause unaligned accesses.

To avoid this, define ACPI_MISALIGNMENT_NOT_SUPPORTED in asm/acenv.h to
align ACPI structures if ARCH_STRICT_ALIGN enabled.

Cc: stable@vger.kernel.org
Reported-by: Binbin Zhou <zhoubinbin@loongson.cn>
Suggested-by: Xi Ruoyao <xry111@xry111.site>
Suggested-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
4 weeks agoLoongArch: Update help info of ARCH_STRICT_ALIGN
Tiezhu Yang [Thu, 18 Sep 2025 11:43:42 +0000 (19:43 +0800)]
LoongArch: Update help info of ARCH_STRICT_ALIGN

Loongson-3A6000 and 3C6000 CPUs also support unaligned memory access, so
the current description is out of date to some extent.

Actually, all of Loongson-3 series processors based on LoongArch support
unaligned memory access, this hardware capability is indicated by the bit
20 (UAL) of CPUCFG1 register, update the help info to reflect the reality.

Cc: stable@vger.kernel.org
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
4 weeks agoLoongArch: Handle jump tables options for RUST
Tiezhu Yang [Thu, 18 Sep 2025 11:43:42 +0000 (19:43 +0800)]
LoongArch: Handle jump tables options for RUST

When compiling with LLVM and CONFIG_RUST is set, there exist objtool
warnings in rust/core.o and rust/kernel.o, like this:

    rust/core.o: warning: objtool:
_RNvXs1_NtNtCs5QSdWC790r4_4core5ascii10ascii_charNtB5_9AsciiCharNtNtB9_3fmt5Debug3fmt+0x54:
sibling call from callable instruction with modified stack frame

For this special case, the related object file shows that there is no
generated relocation section '.rela.discard.tablejump_annotate' for the
table jump instruction jirl, thus objtool can not know that what is the
actual destination address.

If rustc has the option "-Cllvm-args=--loongarch-annotate-tablejump",
pass the option to enable jump tables for objtool, otherwise it should
pass "-Zno-jump-tables" to keep compatibility with older rustc.

How to test:

  $ rustup component add rust-src
  $ make LLVM=1 rustavailable
  $ make ARCH=loongarch LLVM=1 clean defconfig
  $ scripts/config -d MODVERSIONS \
    -e RUST -e SAMPLES -e SAMPLES_RUST \
    -e SAMPLE_RUST_CONFIGFS -e SAMPLE_RUST_MINIMAL \
    -e SAMPLE_RUST_MISC_DEVICE -e SAMPLE_RUST_PRINT \
    -e SAMPLE_RUST_DMA -e SAMPLE_RUST_DRIVER_PCI \
    -e SAMPLE_RUST_DRIVER_PLATFORM -e SAMPLE_RUST_DRIVER_FAUX \
    -e SAMPLE_RUST_DRIVER_AUXILIARY -e SAMPLE_RUST_HOSTPROGS
  $ make ARCH=loongarch LLVM=1 olddefconfig all

Cc: stable@vger.kernel.org
Acked-by: Miguel Ojeda <ojeda@kernel.org>
Reported-by: Miguel Ojeda <ojeda@kernel.org>
Closes: https://lore.kernel.org/rust-for-linux/CANiq72mNeCuPkCDrG2db3w=AX+O-zYrfprisDPmRac_qh65Dmg@mail.gmail.com/
Suggested-by: WANG Rui <wangrui@loongson.cn>
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
4 weeks agoLoongArch: Make LTO case independent in Makefile
Tiezhu Yang [Thu, 18 Sep 2025 11:43:42 +0000 (19:43 +0800)]
LoongArch: Make LTO case independent in Makefile

LTO is not only used for Clang, but maybe also used for Rust, make LTO
case out of CONFIG_CC_HAS_ANNOTATE_TABLEJUMP in Makefile.

This is preparation for later patch, no function changes.

Cc: stable@vger.kernel.org
Suggested-by: WANG Rui <wangrui@loongson.cn>
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
4 weeks agoobjtool/LoongArch: Mark special atomic instruction as INSN_BUG type
Tiezhu Yang [Thu, 18 Sep 2025 11:43:36 +0000 (19:43 +0800)]
objtool/LoongArch: Mark special atomic instruction as INSN_BUG type

When compiling with LLVM and CONFIG_RUST is set, there exists the
following objtool warning:

  rust/compiler_builtins.o: warning: objtool: __rust__unordsf2(): unexpected end of section .text.unlikely.

objdump shows that the end of section .text.unlikely is an atomic
instruction:

  amswap.w        $zero, $ra, $zero

According to the LoongArch Reference Manual, if the amswap.w atomic
memory access instruction has the same register number as rd and rj,
the execution will trigger an Instruction Non-defined Exception, so
mark the above instruction as INSN_BUG type to fix the warning.

Cc: stable@vger.kernel.org
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
4 weeks agoobjtool/LoongArch: Mark types based on break immediate code
Tiezhu Yang [Thu, 18 Sep 2025 11:43:36 +0000 (19:43 +0800)]
objtool/LoongArch: Mark types based on break immediate code

If the break immediate code is 0, it should mark the type as
INSN_TRAP. If the break immediate code is 1, it should mark the
type as INSN_BUG.

While at it, format the code style and add the code comment for nop.

Cc: stable@vger.kernel.org
Suggested-by: WANG Rui <wangrui@loongson.cn>
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
4 weeks agoselftests: tls: test skb copy under mem pressure and OOB
Jakub Kicinski [Wed, 17 Sep 2025 00:28:14 +0000 (17:28 -0700)]
selftests: tls: test skb copy under mem pressure and OOB

Add a test which triggers mem pressure via OOB writes.

Reviewed-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Link: https://patch.msgid.link/20250917002814.1743558-2-kuba@kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
4 weeks agotls: make sure to abort the stream if headers are bogus
Jakub Kicinski [Wed, 17 Sep 2025 00:28:13 +0000 (17:28 -0700)]
tls: make sure to abort the stream if headers are bogus

Normally we wait for the socket to buffer up the whole record
before we service it. If the socket has a tiny buffer, however,
we read out the data sooner, to prevent connection stalls.
Make sure that we abort the connection when we find out late
that the record is actually invalid. Retrying the parsing is
fine in itself but since we copy some more data each time
before we parse we can overflow the allocated skb space.

Constructing a scenario in which we're under pressure without
enough data in the socket to parse the length upfront is quite
hard. syzbot figured out a way to do this by serving us the header
in small OOB sends, and then filling in the recvbuf with a large
normal send.

Make sure that tls_rx_msg_size() aborts strp, if we reach
an invalid record there's really no way to recover.

Reported-by: Lee Jones <lee@kernel.org>
Fixes: 84c61fe1a75b ("tls: rx: do not use the standard strparser")
Reviewed-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Link: https://patch.msgid.link/20250917002814.1743558-1-kuba@kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
4 weeks agocrypto: af_alg - Disallow concurrent writes in af_alg_sendmsg
Herbert Xu [Tue, 16 Sep 2025 09:20:59 +0000 (17:20 +0800)]
crypto: af_alg - Disallow concurrent writes in af_alg_sendmsg

Issuing two writes to the same af_alg socket is bogus as the
data will be interleaved in an unpredictable fashion.  Furthermore,
concurrent writes may create inconsistencies in the internal
socket state.

Disallow this by adding a new ctx->write field that indiciates
exclusive ownership for writing.

Fixes: 8ff590903d5 ("crypto: algif_skcipher - User-space interface for skcipher operations")
Reported-by: Muhammad Alifa Ramdhan <ramdhan@starlabs.sg>
Reported-by: Bing-Jhong Billy Jheng <billy@starlabs.sg>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
4 weeks agocrypto: af_alg - Set merge to zero early in af_alg_sendmsg
Herbert Xu [Tue, 16 Sep 2025 07:42:41 +0000 (15:42 +0800)]
crypto: af_alg - Set merge to zero early in af_alg_sendmsg

If an error causes af_alg_sendmsg to abort, ctx->merge may contain
a garbage value from the previous loop.  This may then trigger a
crash on the next entry into af_alg_sendmsg when it attempts to do
a merge that can't be done.

Fix this by setting ctx->merge to zero near the start of the loop.

Fixes: 8ff590903d5 ("crypto: algif_skcipher - User-space interface for skcipher operations")
Reported-by: Muhammad Alifa Ramdhan <ramdhan@starlabs.sg>
Reported-by: Bing-Jhong Billy Jheng <billy@starlabs.sg>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
4 weeks agoMerge tag 'drm-intel-fixes-2025-09-17' of https://gitlab.freedesktop.org/drm/i915...
Dave Airlie [Thu, 18 Sep 2025 07:36:23 +0000 (17:36 +1000)]
Merge tag 'drm-intel-fixes-2025-09-17' of https://gitlab.freedesktop.org/drm/i915/kernel into drm-fixes

- Honor VESA eDP backlight luminance control capability (Aaron Ma)

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Tvrtko Ursulin <tursulin@igalia.com>
Link: https://lore.kernel.org/r/aMrPx4FZ66t1Kfe-@linux
4 weeks agoMerge tag 'asoc-fix-v6.17-rc6' of https://git.kernel.org/pub/scm/linux/kernel/git...
Takashi Iwai [Thu, 18 Sep 2025 07:11:12 +0000 (09:11 +0200)]
Merge tag 'asoc-fix-v6.17-rc6' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

ASoC: Fixes for v6.17

A pile of fixes that accumilated over the past few -rcs, this is all
driver specifics including a small pile of quirks for new systems.

4 weeks agoMerge tag 'mm-hotfixes-stable-2025-09-17-21-10' of git://git.kernel.org/pub/scm/linux...
Linus Torvalds [Thu, 18 Sep 2025 04:34:26 +0000 (21:34 -0700)]
Merge tag 'mm-hotfixes-stable-2025-09-17-21-10' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull misc fixes from Andrew Morton:
 "15 hotfixes. 11 are cc:stable and the remainder address post-6.16
  issues or aren't considered necessary for -stable kernels. 13 of these
  fixes are for MM.

  The usual shower of singletons, plus

   - fixes from Hugh to address various misbehaviors in get_user_pages()

   - patches from SeongJae to address a quite severe issue in DAMON

   - another series also from SeongJae which completes some fixes for a
     DAMON startup issue"

* tag 'mm-hotfixes-stable-2025-09-17-21-10' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
  zram: fix slot write race condition
  nilfs2: fix CFI failure when accessing /sys/fs/nilfs2/features/*
  samples/damon/mtier: avoid starting DAMON before initialization
  samples/damon/prcl: avoid starting DAMON before initialization
  samples/damon/wsse: avoid starting DAMON before initialization
  MAINTAINERS: add Lance Yang as a THP reviewer
  MAINTAINERS: add Jann Horn as rmap reviewer
  mm/damon/sysfs: use dynamically allocated repeat mode damon_call_control
  mm/damon/core: introduce damon_call_control->dealloc_on_cancel
  mm: folio_may_be_lru_cached() unless folio_test_large()
  mm: revert "mm: vmscan.c: fix OOM on swap stress test"
  mm: revert "mm/gup: clear the LRU flag of a page before adding to LRU batch"
  mm/gup: local lru_add_drain() to avoid lru_add_drain_all()
  mm/gup: check ref_count instead of lru before migration

4 weeks agosmb: client: let smbd_destroy() call disable_work_sync(&info->post_send_credits_work)
Stefan Metzmacher [Tue, 12 Aug 2025 11:03:19 +0000 (13:03 +0200)]
smb: client: let smbd_destroy() call disable_work_sync(&info->post_send_credits_work)

In smbd_destroy() we may destroy the memory so we better
wait until post_send_credits_work is no longer pending
and will never be started again.

I actually just hit the case using rxe:

WARNING: CPU: 0 PID: 138 at drivers/infiniband/sw/rxe/rxe_verbs.c:1032 rxe_post_recv+0x1ee/0x480 [rdma_rxe]
...
[ 5305.686979] [    T138]  smbd_post_recv+0x445/0xc10 [cifs]
[ 5305.687135] [    T138]  ? srso_alias_return_thunk+0x5/0xfbef5
[ 5305.687149] [    T138]  ? __kasan_check_write+0x14/0x30
[ 5305.687185] [    T138]  ? __pfx_smbd_post_recv+0x10/0x10 [cifs]
[ 5305.687329] [    T138]  ? __pfx__raw_spin_lock_irqsave+0x10/0x10
[ 5305.687356] [    T138]  ? srso_alias_return_thunk+0x5/0xfbef5
[ 5305.687368] [    T138]  ? srso_alias_return_thunk+0x5/0xfbef5
[ 5305.687378] [    T138]  ? _raw_spin_unlock_irqrestore+0x11/0x60
[ 5305.687389] [    T138]  ? srso_alias_return_thunk+0x5/0xfbef5
[ 5305.687399] [    T138]  ? get_receive_buffer+0x168/0x210 [cifs]
[ 5305.687555] [    T138]  smbd_post_send_credits+0x382/0x4b0 [cifs]
[ 5305.687701] [    T138]  ? __pfx_smbd_post_send_credits+0x10/0x10 [cifs]
[ 5305.687855] [    T138]  ? __pfx___schedule+0x10/0x10
[ 5305.687865] [    T138]  ? __pfx__raw_spin_lock_irq+0x10/0x10
[ 5305.687875] [    T138]  ? queue_delayed_work_on+0x8e/0xa0
[ 5305.687889] [    T138]  process_one_work+0x629/0xf80
[ 5305.687908] [    T138]  ? srso_alias_return_thunk+0x5/0xfbef5
[ 5305.687917] [    T138]  ? __kasan_check_write+0x14/0x30
[ 5305.687933] [    T138]  worker_thread+0x87f/0x1570
...

It means rxe_post_recv was called after rdma_destroy_qp().
This happened because put_receive_buffer() was triggered
by ib_drain_qp() and called:
queue_work(info->workqueue, &info->post_send_credits_work);

Cc: Steve French <smfrench@gmail.com>
Cc: Tom Talpey <tom@talpey.com>
Cc: Long Li <longli@microsoft.com>
Cc: Namjae Jeon <linkinjeon@kernel.org>
Cc: linux-cifs@vger.kernel.org
Cc: samba-technical@lists.samba.org
Fixes: f198186aa9bb ("CIFS: SMBD: Establish SMB Direct connection")
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
4 weeks agosmb: client: use disable[_delayed]_work_sync in smbdirect.c
Stefan Metzmacher [Tue, 12 Aug 2025 10:58:21 +0000 (12:58 +0200)]
smb: client: use disable[_delayed]_work_sync in smbdirect.c

This makes it safer during the disconnect and avoids
requeueing.

It's ok to call disable[delayed_]work[_sync]() more than once.

Cc: Steve French <smfrench@gmail.com>
Cc: Tom Talpey <tom@talpey.com>
Cc: Long Li <longli@microsoft.com>
Cc: Namjae Jeon <linkinjeon@kernel.org>
Cc: linux-cifs@vger.kernel.org
Cc: samba-technical@lists.samba.org
Fixes: 050b8c374019 ("smbd: Make upper layer decide when to destroy the transport")
Fixes: f198186aa9bb ("CIFS: SMBD: Establish SMB Direct connection")
Fixes: c7398583340a ("CIFS: SMBD: Implement RDMA memory registration")
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
4 weeks agosmb: client: fix filename matching of deferred files
Paulo Alcantara [Wed, 17 Sep 2025 19:03:22 +0000 (16:03 -0300)]
smb: client: fix filename matching of deferred files

Fix the following case where the client would end up closing both
deferred files (foo.tmp & foo) after unlink(foo) due to strstr() call
in cifs_close_deferred_file_under_dentry():

  fd1 = openat(AT_FDCWD, "foo", O_WRONLY|O_CREAT|O_TRUNC, 0666);
  fd2 = openat(AT_FDCWD, "foo.tmp", O_WRONLY|O_CREAT|O_TRUNC, 0666);
  close(fd1);
  close(fd2);
  unlink("foo");

Fixes: e3fc065682eb ("cifs: Deferred close performance improvements")
Signed-off-by: Paulo Alcantara (Red Hat) <pc@manguebit.org>
Reviewed-by: Enzo Matsumiya <ematsumiya@suse.de>
Cc: Frank Sorenson <sorenson@redhat.com>
Cc: David Howells <dhowells@redhat.com>
Cc: linux-cifs@vger.kernel.org
Signed-off-by: Steve French <stfrench@microsoft.com>
4 weeks agosmb: client: let recv_done verify data_offset, data_length and remaining_data_length
Stefan Metzmacher [Wed, 10 Sep 2025 09:49:05 +0000 (11:49 +0200)]
smb: client: let recv_done verify data_offset, data_length and remaining_data_length

This is inspired by the related server fixes.

Cc: Tom Talpey <tom@talpey.com>
Cc: Long Li <longli@microsoft.com>
Cc: linux-cifs@vger.kernel.org
Cc: samba-technical@lists.samba.org
Reviewed-by: Namjae Jeon <linkinjeon@kernel.org>
Fixes: f198186aa9bb ("CIFS: SMBD: Establish SMB Direct connection")
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
4 weeks agoMerge tag '6.17-rc6-ksmbd-fixes' of git://git.samba.org/ksmbd
Linus Torvalds [Thu, 18 Sep 2025 01:23:01 +0000 (18:23 -0700)]
Merge tag '6.17-rc6-ksmbd-fixes' of git://git.samba.org/ksmbd

Pull smb server fixes from Steve French:

 - Two fixes for remaining_data_length and offset checks in receive path

 - Don't go over max SGEs which caused smbdirect send to fail (and
   trigger disconnect)

* tag '6.17-rc6-ksmbd-fixes' of git://git.samba.org/ksmbd:
  ksmbd: smbdirect: verify remaining_data_length respects max_fragmented_recv_size
  ksmbd: smbdirect: validate data_offset and data_length field of smb_direct_data_transfer
  smb: server: let smb_direct_writev() respect SMB_DIRECT_MAX_SEND_SGES

4 weeks agodrm/xe/guc: Set RCS/CCS yield policy
Daniele Ceraolo Spurio [Fri, 5 Sep 2025 23:56:33 +0000 (16:56 -0700)]
drm/xe/guc: Set RCS/CCS yield policy

All recent platforms (including all the ones officially supported by the
Xe driver) do not allow concurrent execution of RCS and CCS workloads
from different address spaces, with the HW blocking the context switch
when it detects such a scenario.
The DUAL_QUEUE flag helps with this, by causing the GuC to not submit a
context it knows will not be able to execute. This, however, causes a new
problem: if RCS and CCS queues have pending workloads from different
address spaces, the GuC needs to choose from which of the 2 queues to
pick the next workload to execute. By default, the GuC prioritizes RCS
submissions over CCS ones, which can lead to CCS workloads being
significantly (or completely) starved of execution time.
The driver can tune this by setting a dedicated scheduling policy KLV;
this KLV allows the driver to specify a quantum (in ms) and a ratio
(percentage value between 0 and 100), and the GuC will prioritize the CCS
for that percentage of each quantum.
Given that we want to guarantee enough RCS throughput to avoid missing
frames, we set the yield policy to 20% of each 80ms interval.

v2: updated quantum and ratio, improved comment, use xe_guc_submit_disable
in gt_sanitize

Fixes: d9a1ae0d17bd ("drm/xe/guc: Enable WA_DUAL_QUEUE for newer platforms")
Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: Matthew Brost <matthew.brost@intel.com>
Cc: John Harrison <John.C.Harrison@Intel.com>
Cc: Vinay Belgaumkar <vinay.belgaumkar@intel.com>
Reviewed-by: John Harrison <John.C.Harrison@Intel.com>
Tested-by: Vinay Belgaumkar <vinay.belgaumkar@intel.com>
Link: https://lore.kernel.org/r/20250905235632.3333247-2-daniele.ceraolospurio@intel.com
(cherry picked from commit 88434448438e4302e272b2a2b810b42e05ea024b)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
[Rodrigo added #include "xe_guc_submit.h" while backporting]

4 weeks agoMerge tag 'probes-fixes-v6.17-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Wed, 17 Sep 2025 23:52:26 +0000 (16:52 -0700)]
Merge tag 'probes-fixes-v6.17-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace

Pull probe fix from Masami Hiramatsu:

 - kprobe-event: Fix null-ptr-deref in trace_kprobe_create_internal(),
   by handling NULL return of kmemdup() correctly

* tag 'probes-fixes-v6.17-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
  tracing: kprobe-event: Fix null-ptr-deref in trace_kprobe_create_internal()

4 weeks agoMerge branch '100GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net...
Jakub Kicinski [Wed, 17 Sep 2025 23:14:25 +0000 (16:14 -0700)]
Merge branch '100GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net-queue

Tony Nguyen says:

====================
Intel Wired LAN Driver Updates 2025-09-16 (ice, i40e, ixgbe, igc)

For ice:
Jake resolves leaking pages with multi-buffer frames when a 0-sized
descriptor is encountered.

For i40e:
Maciej removes a redundant, and incorrect, memory barrier.

For ixgbe:
Jedrzej adjusts lifespan of ACI lock to ensure uses are while it is
valid.

For igc:
Kohei Enju does not fail probe on LED setup failure which resolves a
kernel panic in the cleanup path, if we were to fail.

* '100GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net-queue:
  igc: don't fail igc_probe() on LED setup error
  ixgbe: destroy aci.lock later within ixgbe_remove path
  ixgbe: initialize aci.lock before it's used
  i40e: remove redundant memory barrier when cleaning Tx descs
  ice: fix Rx page leak on multi-buffer frames
====================

Link: https://patch.msgid.link/20250916212801.2818440-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
4 weeks agoMerge tag 'wireless-2025-09-17' of https://git.kernel.org/pub/scm/linux/kernel/git...
Jakub Kicinski [Wed, 17 Sep 2025 23:12:46 +0000 (16:12 -0700)]
Merge tag 'wireless-2025-09-17' of https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless

Johannes Berg says:

====================
Just two fixes:
 - fix crash in rfkill due to uninitialized type_name
 - fix aggregation in iwlwifi 7000/8000 devices

* tag 'wireless-2025-09-17' of https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless:
  net: rfkill: gpio: Fix crash due to dereferencering uninitialized pointer
  wifi: iwlwifi: pcie: fix byte count table for some devices
====================

Link: https://patch.msgid.link/20250917105159.161583-3-johannes@sipsolutions.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
4 weeks agoMerge branch 'tcp-clear-tcp_sk-sk-fastopen_rsk-in-tcp_disconnect'
Jakub Kicinski [Wed, 17 Sep 2025 23:01:54 +0000 (16:01 -0700)]
Merge branch 'tcp-clear-tcp_sk-sk-fastopen_rsk-in-tcp_disconnect'

Kuniyuki Iwashima says:

====================
tcp: Clear tcp_sk(sk)->fastopen_rsk in tcp_disconnect().

syzbot reported a warning in tcp_retransmit_timer() for TCP Fast
Open socket.

Patch 1 fixes the issue and Patch 2 adds a test for the scenario.
====================

Link: https://patch.msgid.link/20250915175800.118793-1-kuniyu@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
4 weeks agoselftest: packetdrill: Add tcp_fastopen_server_reset-after-disconnect.pkt.
Kuniyuki Iwashima [Mon, 15 Sep 2025 17:56:47 +0000 (17:56 +0000)]
selftest: packetdrill: Add tcp_fastopen_server_reset-after-disconnect.pkt.

The test reproduces the scenario explained in the previous patch.

Without the patch, the test triggers the warning and cannot see the last
retransmitted packet.

  # ./ksft_runner.sh tcp_fastopen_server_reset-after-disconnect.pkt
  TAP version 13
  1..2
  [   29.229250] ------------[ cut here ]------------
  [   29.231414] WARNING: CPU: 26 PID: 0 at net/ipv4/tcp_timer.c:542 tcp_retransmit_timer+0x32/0x9f0
  ...
  tcp_fastopen_server_reset-after-disconnect.pkt:26: error handling packet: Timed out waiting for packet
  not ok 1 ipv4
  tcp_fastopen_server_reset-after-disconnect.pkt:26: error handling packet: Timed out waiting for packet
  not ok 2 ipv6
  # Totals: pass:0 fail:2 xfail:0 xpass:0 skip:0 error:0

Signed-off-by: Kuniyuki Iwashima <kuniyu@google.com>
Link: https://patch.msgid.link/20250915175800.118793-3-kuniyu@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
4 weeks agotcp: Clear tcp_sk(sk)->fastopen_rsk in tcp_disconnect().
Kuniyuki Iwashima [Mon, 15 Sep 2025 17:56:46 +0000 (17:56 +0000)]
tcp: Clear tcp_sk(sk)->fastopen_rsk in tcp_disconnect().

syzbot reported the splat below where a socket had tcp_sk(sk)->fastopen_rsk
in the TCP_ESTABLISHED state. [0]

syzbot reused the server-side TCP Fast Open socket as a new client before
the TFO socket completes 3WHS:

  1. accept()
  2. connect(AF_UNSPEC)
  3. connect() to another destination

As of accept(), sk->sk_state is TCP_SYN_RECV, and tcp_disconnect() changes
it to TCP_CLOSE and makes connect() possible, which restarts timers.

Since tcp_disconnect() forgot to clear tcp_sk(sk)->fastopen_rsk, the
retransmit timer triggered the warning and the intended packet was not
retransmitted.

Let's call reqsk_fastopen_remove() in tcp_disconnect().

[0]:
WARNING: CPU: 2 PID: 0 at net/ipv4/tcp_timer.c:542 tcp_retransmit_timer (net/ipv4/tcp_timer.c:542 (discriminator 7))
Modules linked in:
CPU: 2 UID: 0 PID: 0 Comm: swapper/2 Not tainted 6.17.0-rc5-g201825fb4278 #62 PREEMPT(voluntary)
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
RIP: 0010:tcp_retransmit_timer (net/ipv4/tcp_timer.c:542 (discriminator 7))
Code: 41 55 41 54 55 53 48 8b af b8 08 00 00 48 89 fb 48 85 ed 0f 84 55 01 00 00 0f b6 47 12 3c 03 74 0c 0f b6 47 12 3c 04 74 04 90 <0f> 0b 90 48 8b 85 c0 00 00 00 48 89 ef 48 8b 40 30 e8 6a 4f 06 3e
RSP: 0018:ffffc900002f8d40 EFLAGS: 00010293
RAX: 0000000000000002 RBX: ffff888106911400 RCX: 0000000000000017
RDX: 0000000002517619 RSI: ffffffff83764080 RDI: ffff888106911400
RBP: ffff888106d5c000 R08: 0000000000000001 R09: ffffc900002f8de8
R10: 00000000000000c2 R11: ffffc900002f8ff8 R12: ffff888106911540
R13: ffff888106911480 R14: ffff888106911840 R15: ffffc900002f8de0
FS:  0000000000000000(0000) GS:ffff88907b768000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8044d69d90 CR3: 0000000002c30003 CR4: 0000000000370ef0
Call Trace:
 <IRQ>
 tcp_write_timer (net/ipv4/tcp_timer.c:738)
 call_timer_fn (kernel/time/timer.c:1747)
 __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2372)
 timer_expire_remote (kernel/time/timer.c:2385 kernel/time/timer.c:2376 kernel/time/timer.c:2135)
 tmigr_handle_remote_up (kernel/time/timer_migration.c:944 kernel/time/timer_migration.c:1035)
 __walk_groups.isra.0 (kernel/time/timer_migration.c:533 (discriminator 1))
 tmigr_handle_remote (kernel/time/timer_migration.c:1096)
 handle_softirqs (./arch/x86/include/asm/jump_label.h:36 ./include/trace/events/irq.h:142 kernel/softirq.c:580)
 irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680 kernel/softirq.c:696)
 sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 (discriminator 35) arch/x86/kernel/apic/apic.c:1050 (discriminator 35))
 </IRQ>

Fixes: 8336886f786f ("tcp: TCP Fast Open Server - support TFO listeners")
Reported-by: syzkaller <syzkaller@googlegroups.com>
Signed-off-by: Kuniyuki Iwashima <kuniyu@google.com>
Link: https://patch.msgid.link/20250915175800.118793-2-kuniyu@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
4 weeks agoocteon_ep: fix VF MAC address lifecycle handling
Sathesh B Edara [Tue, 16 Sep 2025 13:32:07 +0000 (06:32 -0700)]
octeon_ep: fix VF MAC address lifecycle handling

Currently, VF MAC address info is not updated when the MAC address is
configured from VF, and it is not cleared when the VF is removed. This
leads to stale or missing MAC information in the PF, which may cause
incorrect state tracking or inconsistencies when VFs are hot-plugged
or reassigned.

Fix this by:
 - storing the VF MAC address in the PF when it is set from VF
 - clearing the stored VF MAC address when the VF is removed

This ensures that the PF always has correct VF MAC state.

Fixes: cde29af9e68e ("octeon_ep: add PF-VF mailbox communication")
Signed-off-by: Sathesh B Edara <sedara@marvell.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250916133207.21737-1-sedara@marvell.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
4 weeks agotracing: kprobe-event: Fix null-ptr-deref in trace_kprobe_create_internal()
Wang Liang [Tue, 16 Sep 2025 07:58:16 +0000 (15:58 +0800)]
tracing: kprobe-event: Fix null-ptr-deref in trace_kprobe_create_internal()

A crash was observed with the following output:

Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] SMP KASAN PTI
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
CPU: 1 UID: 0 PID: 2899 Comm: syz.2.399 Not tainted 6.17.0-rc5+ #5 PREEMPT(none)
RIP: 0010:trace_kprobe_create_internal+0x3fc/0x1440 kernel/trace/trace_kprobe.c:911
Call Trace:
 <TASK>
 trace_kprobe_create_cb+0xa2/0xf0 kernel/trace/trace_kprobe.c:1089
 trace_probe_create+0xf1/0x110 kernel/trace/trace_probe.c:2246
 dyn_event_create+0x45/0x70 kernel/trace/trace_dynevent.c:128
 create_or_delete_trace_kprobe+0x5e/0xc0 kernel/trace/trace_kprobe.c:1107
 trace_parse_run_command+0x1a5/0x330 kernel/trace/trace.c:10785
 vfs_write+0x2b6/0xd00 fs/read_write.c:684
 ksys_write+0x129/0x240 fs/read_write.c:738
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x5d/0x2d0 arch/x86/entry/syscall_64.c:94
 </TASK>

Function kmemdup() may return NULL in trace_kprobe_create_internal(), add
check for it's return value.

Link: https://lore.kernel.org/all/20250916075816.3181175-1-wangliang74@huawei.com/
Fixes: 33b4e38baa03 ("tracing: kprobe-event: Allocate string buffers from heap")
Signed-off-by: Wang Liang <wangliang74@huawei.com>
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
4 weeks agoselftests: bonding: add vlan over bond testing
Hangbin Liu [Tue, 16 Sep 2025 08:01:27 +0000 (08:01 +0000)]
selftests: bonding: add vlan over bond testing

Add a vlan over bond testing to make sure arp/ns target works.
Also change all the configs to mudules.

Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Link: https://patch.msgid.link/20250916080127.430626-2-liuhangbin@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
4 weeks agobonding: don't set oif to bond dev when getting NS target destination
Hangbin Liu [Tue, 16 Sep 2025 08:01:26 +0000 (08:01 +0000)]
bonding: don't set oif to bond dev when getting NS target destination

Unlike IPv4, IPv6 routing strictly requires the source address to be valid
on the outgoing interface. If the NS target is set to a remote VLAN interface,
and the source address is also configured on a VLAN over a bond interface,
setting the oif to the bond device will fail to retrieve the correct
destination route.

Fix this by not setting the oif to the bond device when retrieving the NS
target destination. This allows the correct destination device (the VLAN
interface) to be determined, so that bond_verify_device_path can return the
proper VLAN tags for sending NS messages.

Reported-by: David Wilder <wilder@us.ibm.com>
Closes: https://lore.kernel.org/netdev/aGOKggdfjv0cApTO@fedora/
Suggested-by: Jay Vosburgh <jv@jvosburgh.net>
Tested-by: David Wilder <wilder@us.ibm.com>
Acked-by: Jay Vosburgh <jv@jvosburgh.net>
Fixes: 4e24be018eb9 ("bonding: add new parameter ns_targets")
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Link: https://patch.msgid.link/20250916080127.430626-1-liuhangbin@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
4 weeks agoMerge tag 'sched_ext-for-6.17-rc6-fixes' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Wed, 17 Sep 2025 20:27:31 +0000 (13:27 -0700)]
Merge tag 'sched_ext-for-6.17-rc6-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext

Pull sched_ext fixes from Tejun Heo:

 - Fix build failure when !FAIR_GROUP_SCHED && EXT_GROUP_SCHED

 - Revert "sched_ext: Skip per-CPU tasks in scx_bpf_reenqueue_local()"
   which was causing issues with per-CPU task scheduling and reenqueuing
   behavior

* tag 'sched_ext-for-6.17-rc6-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext:
  sched_ext, sched/core: Fix build failure when !FAIR_GROUP_SCHED && EXT_GROUP_SCHED
  Revert "sched_ext: Skip per-CPU tasks in scx_bpf_reenqueue_local()"

4 weeks agoMerge tag 'cgroup-for-6.17-rc6-fixes' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Wed, 17 Sep 2025 20:22:08 +0000 (13:22 -0700)]
Merge tag 'cgroup-for-6.17-rc6-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup

Pull cgroup fixes from Tejun Heo:
 "This contains two cgroup changes. Both are pretty low risk.

  - Fix deadlock in cgroup destruction when repeatedly
    mounting/unmounting perf_event and net_prio controllers.

    The issue occurs because cgroup_destroy_wq has max_active=1, causing
    root destruction to wait for CSS offline operations that are queued
    behind it.

    The fix splits cgroup_destroy_wq into three separate workqueues to
    eliminate the blocking.

  - Set of->priv to NULL upon file release to make potential bugs to
    manifest as NULL pointer dereferences rather than use-after-free
    errors"

* tag 'cgroup-for-6.17-rc6-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
  cgroup/psi: Set of->priv to NULL upon file release
  cgroup: split cgroup_destroy_wq into 3 workqueues

4 weeks agoMerge tag 'kvm-s390-master-6.17-1' of https://git.kernel.org/pub/scm/linux/kernel...
Paolo Bonzini [Wed, 17 Sep 2025 17:45:21 +0000 (19:45 +0200)]
Merge tag 'kvm-s390-master-6.17-1' of https://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux into HEAD

- KVM mm fixes
- Postcopy fix

4 weeks agoMerge tag 'kvm-x86-fixes-6.17-rcN' of https://github.com/kvm-x86/linux into HEAD
Paolo Bonzini [Wed, 17 Sep 2025 17:45:02 +0000 (19:45 +0200)]
Merge tag 'kvm-x86-fixes-6.17-rcN' of https://github.com/kvm-x86/linux into HEAD

KVM x86 fix for 6.17-rcN

Sync the vTPR from the local APIC to the VMCB even when AVIC is active, to fix
a bug where host updates to the vTPR, e.g. via KVM_SET_LAPIC or emulation of a
guest access, effectively get lost and result in interrupt delivery issues in
the guest.

4 weeks agoMerge tag 'kvmarm-fixes-6.17-2' of https://git.kernel.org/pub/scm/linux/kernel/git...
Paolo Bonzini [Wed, 17 Sep 2025 17:44:40 +0000 (19:44 +0200)]
Merge tag 'kvmarm-fixes-6.17-2' of https://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD

KVM/arm64 changes for 6.17, round #3

 - Invalidate nested MMUs upon freeing the PGD to avoid WARNs when
   visiting from an MMU notifier

 - Fixes to the TLB match process and TLB invalidation range for
   managing the VCNR pseudo-TLB

 - Prevent SPE from erroneously profiling guests due to UNKNOWN reset
   values in PMSCR_EL1

 - Fix save/restore of host MDCR_EL2 to account for eagerly programming
   at vcpu_load() on VHE systems

 - Correct lock ordering when dealing with VGIC LPIs, avoiding scenarios
   where an xarray's spinlock was nested with a *raw* spinlock

 - Permit stage-2 read permission aborts which are possible in the case
   of NV depending on the guest hypervisor's stage-2 translation

 - Call raw_spin_unlock() instead of the internal spinlock API

 - Fix parameter ordering when assigning VBAR_EL1

4 weeks agodrm/xe: Fix error handling if PXP fails to start
Daniele Ceraolo Spurio [Tue, 9 Sep 2025 22:12:40 +0000 (15:12 -0700)]
drm/xe: Fix error handling if PXP fails to start

Since the PXP start comes after __xe_exec_queue_init() has completed,
we need to cleanup what was done in that function in case of a PXP
start error.
__xe_exec_queue_init calls the submission backend init() function,
so we need to introduce an opposite for that. Unfortunately, while
we already have a fini() function pointer, it performs other
operations in addition to cleaning up what was done by the init().
Therefore, for clarity, the existing fini() has been renamed to
destroy(), while a new fini() has been added to only clean up what was
done by the init(), with the latter being called by the former (via
xe_exec_queue_fini).

Fixes: 72d479601d67 ("drm/xe/pxp/uapi: Add userspace and LRC support for PXP-using queues")
Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: John Harrison <John.C.Harrison@Intel.com>
Cc: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: John Harrison <John.C.Harrison@Intel.com>
Signed-off-by: John Harrison <John.C.Harrison@Intel.com>
Link: https://lore.kernel.org/r/20250909221240.3711023-3-daniele.ceraolospurio@intel.com
(cherry picked from commit 626667321deb4c7a294725406faa3dd71c3d445d)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
4 weeks agodrm/xe/sysfs: Add cleanup action in xe_device_sysfs_init
Zongyao Bai [Mon, 15 Sep 2025 21:47:15 +0000 (05:47 +0800)]
drm/xe/sysfs: Add cleanup action in xe_device_sysfs_init

On partial failure, some sysfs files created before the failure might
not be removed. Add common cleanup step to remove them all immediately,
as is should be harmless to attempt to remove non-existing files.

Fixes: 0e414bf7ad01 ("drm/xe: Expose PCIe link downgrade attributes")
Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Cc: Stuart Summers <stuart.summers@intel.com>
Cc: Shuicheng Lin <shuicheng.lin@intel.com>
Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
Signed-off-by: Zongyao Bai <zongyao.bai@intel.com>
Reviewed-by: Shuicheng Lin <shuicheng.lin@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://lore.kernel.org/r/20250915214716.1327379-2-zongyao.bai@intel.com
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
(cherry picked from commit 1a869168d91f1a1a2b0db22cea0295c67908e5d8)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
4 weeks agoALSA: hda: intel-dsp-config: Prevent SEGFAULT if ACPI_HANDLE() is NULL
Richard Fitzgerald [Wed, 17 Sep 2025 16:06:09 +0000 (17:06 +0100)]
ALSA: hda: intel-dsp-config: Prevent SEGFAULT if ACPI_HANDLE() is NULL

Check in snd_intel_dsp_check_soundwire() that the pointer returned by
ACPI_HANDLE() is not NULL, before passing it on to other functions.

The original code assumed a non-NULL return, but if it was unexpectedly
NULL it would end up passed to acpi_walk_namespace() as the start
point, and would result in

[    3.219028] BUG: kernel NULL pointer dereference, address:
0000000000000018
[    3.219029] #PF: supervisor read access in kernel mode
[    3.219030] #PF: error_code(0x0000) - not-present page
[    3.219031] PGD 0 P4D 0
[    3.219032] Oops: Oops: 0000 [#1] SMP NOPTI
[    3.219035] CPU: 2 UID: 0 PID: 476 Comm: (udev-worker) Tainted: G S
AW   E       6.17.0-rc5-test #1 PREEMPT(voluntary)
[    3.219038] Tainted: [S]=CPU_OUT_OF_SPEC, [A]=OVERRIDDEN_ACPI_TABLE,
[W]=WARN, [E]=UNSIGNED_MODULE
[    3.219040] RIP: 0010:acpi_ns_walk_namespace+0xb5/0x480

This problem was triggered by a bugged DSDT that the kernel couldn't parse.
But it shouldn't be possible to SEGFAULT the kernel just because of some
bugs in ACPI.

Fixes: 0650857570d1 ("ALSA: hda: add autodetection for SoundWire")
Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
4 weeks agoMerge tag 'for-6.17/dm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device...
Linus Torvalds [Wed, 17 Sep 2025 15:07:02 +0000 (08:07 -0700)]
Merge tag 'for-6.17/dm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm

Pull device mapper fixes from Mikulas Patocka:

 - fix integer overflow in dm-stripe

 - limit tag size in dm-integrity to 255 bytes

 - fix 'alignment inconsistency' warning in dm-raid

* tag 'for-6.17/dm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
  dm-raid: don't set io_min and io_opt for raid1
  dm-integrity: limit MAX_TAG_SIZE to 255
  dm-stripe: fix a possible integer overflow

4 weeks agoMerge tag 'for-6.17-rc6-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave...
Linus Torvalds [Wed, 17 Sep 2025 14:55:45 +0000 (07:55 -0700)]
Merge tag 'for-6.17-rc6-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux

Pull btrfs fixes from David Sterba:

 - in zoned mode, turn assertion to proper code when reserving space in
   relocation block group

 - fix search key of extended ref (hardlink) when replaying log

 - fix initialization of file extent tree on filesystems without
   no-holes feature

 - add harmless data race annotation to block group comparator

* tag 'for-6.17-rc6-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
  btrfs: annotate block group access with data_race() when sorting for reclaim
  btrfs: initialize inode::file_extent_tree after i_mode has been set
  btrfs: zoned: fix incorrect ASSERT in btrfs_zoned_reserve_data_reloc_bg()
  btrfs: fix invalid extref key setup when replaying dentry

4 weeks agodrbd: init queue_limits->max_hw_wzeroes_unmap_sectors parameter
Zhang Yi [Wed, 10 Sep 2025 11:11:07 +0000 (19:11 +0800)]
drbd: init queue_limits->max_hw_wzeroes_unmap_sectors parameter

The parameter max_hw_wzeroes_unmap_sectors in queue_limits should be
equal to max_write_zeroes_sectors if it is set to a non-zero value.
However, when the backend bdev is specified, this parameter is
initialized to UINT_MAX during the call to blk_set_stacking_limits(),
while only max_write_zeroes_sectors is adjusted. Therefore, this
discrepancy triggers a value check failure in blk_validate_limits().

Since the drvd driver doesn't yet support unmap write zeroes, so fix
this failure by explicitly setting max_hw_wzeroes_unmap_sectors to
zero.

Fixes: 0c40d7cb5ef3 ("block: introduce max_{hw|user}_wzeroes_unmap_sectors to queue limits")
Signed-off-by: Zhang Yi <yi.zhang@huawei.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Yu Kuai <yukuai3@huawei.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
4 weeks agodm-raid: don't set io_min and io_opt for raid1
Mikulas Patocka [Mon, 15 Sep 2025 14:12:40 +0000 (16:12 +0200)]
dm-raid: don't set io_min and io_opt for raid1

These commands
 modprobe brd rd_size=1048576
 vgcreate vg /dev/ram*
 lvcreate -m4 -L10 -n lv vg
trigger the following warnings:
device-mapper: table: 252:10: adding target device (start sect 0 len 24576) caused an alignment inconsistency
device-mapper: table: 252:10: adding target device (start sect 0 len 24576) caused an alignment inconsistency

The warnings are caused by the fact that io_min is 512 and physical block
size is 4096.

If there's chunk-less raid, such as raid1, io_min shouldn't be set to zero
because it would be raised to 512 and it would trigger the warning.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Cc: stable@vger.kernel.org
4 weeks agoMerge tag 'md-6.17-20250917' of https://git.kernel.org/pub/scm/linux/kernel/git/mdrai...
Jens Axboe [Wed, 17 Sep 2025 13:20:42 +0000 (07:20 -0600)]
Merge tag 'md-6.17-20250917' of https://git.kernel.org/pub/scm/linux/kernel/git/mdraid/linux into block-6.17

Pull MD fixes from Yu Kuai:

"For 6.17 on drivers supporting write zeros, raid{0,1,10,5} are broken
 and can't be assembled."

* tag 'md-6.17-20250917' of https://git.kernel.org/pub/scm/linux/kernel/git/mdraid/linux:
  md: init queue_limits->max_hw_wzeroes_unmap_sectors parameter

4 weeks agoALSA: usb: qcom: Fix false-positive address space check
Takashi Iwai [Wed, 17 Sep 2025 13:09:01 +0000 (15:09 +0200)]
ALSA: usb: qcom: Fix false-positive address space check

The sanity check previously added to uaudio_transfer_buffer_setup()
assumed the allocated buffer being linear-mapped.  But the buffer
allocated via usb_alloc_coherent() isn't always so, rather to be used
with (SG-)DMA API.  This leaded to a false-positive warning and the
driver failed to work.

Actually uaudio_transfer_buffer_setup() deals only with the DMA-API
addresses for MEM_XFER_BUF type, while other callers of
uaudio_iommu_map() are with pages with physical addresses for
MEM_EVENT_RING and MEM_XFER_RING types.  So this patch splits the
mapping helper function to two different ones, uaudio_iommu_map() for
the DMA pages and uaudio_iommu_map_pa() for the latter, in order to
handle mapping differently for each type.  Along with it, the
unnecessary address check that caused probe error is dropped, too.

Fixes: 3335a1bbd624 ("ALSA: qc_audio_offload: try to reduce address space confusion")
Suggested-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Reported-and-tested-by: Luca Weiss <luca.weiss@fairphone.com>
Closes: https://lore.kernel.org/DBR2363A95M1.L9XBNC003490@fairphone.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
4 weeks agoASoC: rt5682s: Adjust SAR ADC button mode to fix noise issue
Jack Yu [Wed, 17 Sep 2025 08:11:43 +0000 (08:11 +0000)]
ASoC: rt5682s: Adjust SAR ADC button mode to fix noise issue

Adjust register settings for SAR adc button detection mode
to fix noise issue in headset.

Signed-off-by: Jack Yu <jack.yu@realtek.com>
Link: https://patch.msgid.link/766cd1d2dd7a403ba65bb4cc44845f71@realtek.com
Signed-off-by: Mark Brown <broonie@kernel.org>
4 weeks agonet: rfkill: gpio: Fix crash due to dereferencering uninitialized pointer
Hans de Goede [Sat, 13 Sep 2025 11:35:15 +0000 (13:35 +0200)]
net: rfkill: gpio: Fix crash due to dereferencering uninitialized pointer

Since commit 7d5e9737efda ("net: rfkill: gpio: get the name and type from
device property") rfkill_find_type() gets called with the possibly
uninitialized "const char *type_name;" local variable.

On x86 systems when rfkill-gpio binds to a "BCM4752" or "LNV4752"
acpi_device, the rfkill->type is set based on the ACPI acpi_device_id:

        rfkill->type = (unsigned)id->driver_data;

and there is no "type" property so device_property_read_string() will fail
and leave type_name uninitialized, leading to a potential crash.

rfkill_find_type() does accept a NULL pointer, fix the potential crash
by initializing type_name to NULL.

Note likely sofar this has not been caught because:

1. Not many x86 machines actually have a "BCM4752"/"LNV4752" acpi_device
2. The stack happened to contain NULL where type_name is stored

Fixes: 7d5e9737efda ("net: rfkill: gpio: get the name and type from device property")
Cc: stable@vger.kernel.org
Cc: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Hans de Goede <hansg@kernel.org>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://patch.msgid.link/20250913113515.21698-1-hansg@kernel.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
4 weeks agoMerge tag 'iwlwifi-fixes-2025-09-15' of https://git.kernel.org/pub/scm/linux/kernel...
Johannes Berg [Wed, 17 Sep 2025 10:35:38 +0000 (12:35 +0200)]
Merge tag 'iwlwifi-fixes-2025-09-15' of https://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-next

Miri Korenblit says:
====================
iwlwifi fix
====================

The fix is for byte count tables in 7000/8000 family devices.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
4 weeks agosched_ext, sched/core: Fix build failure when !FAIR_GROUP_SCHED && EXT_GROUP_SCHED
Tejun Heo [Tue, 16 Sep 2025 21:06:42 +0000 (11:06 -1000)]
sched_ext, sched/core: Fix build failure when !FAIR_GROUP_SCHED && EXT_GROUP_SCHED

While collecting SCX related fields in struct task_group into struct
scx_task_group, 6e6558a6bc41 ("sched_ext, sched/core: Factor out struct
scx_task_group") forgot update tg->scx_weight usage in tg_weight(), which
leads to build failure when CONFIG_FAIR_GROUP_SCHED is disabled but
CONFIG_EXT_GROUP_SCHED is enabled. Fix it.

Fixes: 6e6558a6bc41 ("sched_ext, sched/core: Factor out struct scx_task_group")
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202509170230.MwZsJSWa-lkp@intel.com/
Tested-by: Andrea Righi <arighi@nvidia.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
4 weeks agoMerge branch 'mlx5e-misc-fixes-2025-09-15'
Jakub Kicinski [Wed, 17 Sep 2025 00:19:14 +0000 (17:19 -0700)]
Merge branch 'mlx5e-misc-fixes-2025-09-15'

Tariq Toukan says:

====================
mlx5e misc fixes 2025-09-15

This patchset provides misc bug fixes from the team to the mlx5 Eth
driver.
====================

Link: https://patch.msgid.link/1757939074-617281-1-git-send-email-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
4 weeks agonet/mlx5e: Add a miss level for ipsec crypto offload
Lama Kayal [Mon, 15 Sep 2025 12:24:34 +0000 (15:24 +0300)]
net/mlx5e: Add a miss level for ipsec crypto offload

The cited commit adds a miss table for switchdev mode. But it
uses the same level as policy table. Will hit the following error
when running command:

 # ip xfrm state add src 192.168.1.22 dst 192.168.1.21 proto \
esp spi 1001 reqid 10001 aead 'rfc4106(gcm(aes))' \
0x3a189a7f9374955d3817886c8587f1da3df387ff 128 \
mode tunnel offload dev enp8s0f0 dir in
 Error: mlx5_core: Device failed to offload this state.

The dmesg error is:

 mlx5_core 0000:03:00.0: ipsec_miss_create:578:(pid 311797): fail to create IPsec miss_rule err=-22

Fix it by adding a new miss level to avoid the error.

Fixes: 7d9e292ecd67 ("net/mlx5e: Move IPSec policy check after decryption")
Signed-off-by: Jianbo Liu <jianbol@nvidia.com>
Signed-off-by: Chris Mi <cmi@nvidia.com>
Signed-off-by: Lama Kayal <lkayal@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/1757939074-617281-4-git-send-email-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
4 weeks agonet/mlx5e: Harden uplink netdev access against device unbind
Jianbo Liu [Mon, 15 Sep 2025 12:24:32 +0000 (15:24 +0300)]
net/mlx5e: Harden uplink netdev access against device unbind

The function mlx5_uplink_netdev_get() gets the uplink netdevice
pointer from mdev->mlx5e_res.uplink_netdev. However, the netdevice can
be removed and its pointer cleared when unbound from the mlx5_core.eth
driver. This results in a NULL pointer, causing a kernel panic.

 BUG: unable to handle page fault for address: 0000000000001300
 at RIP: 0010:mlx5e_vport_rep_load+0x22a/0x270 [mlx5_core]
 Call Trace:
  <TASK>
  mlx5_esw_offloads_rep_load+0x68/0xe0 [mlx5_core]
  esw_offloads_enable+0x593/0x910 [mlx5_core]
  mlx5_eswitch_enable_locked+0x341/0x420 [mlx5_core]
  mlx5_devlink_eswitch_mode_set+0x17e/0x3a0 [mlx5_core]
  devlink_nl_eswitch_set_doit+0x60/0xd0
  genl_family_rcv_msg_doit+0xe0/0x130
  genl_rcv_msg+0x183/0x290
  netlink_rcv_skb+0x4b/0xf0
  genl_rcv+0x24/0x40
  netlink_unicast+0x255/0x380
  netlink_sendmsg+0x1f3/0x420
  __sock_sendmsg+0x38/0x60
  __sys_sendto+0x119/0x180
  do_syscall_64+0x53/0x1d0
  entry_SYSCALL_64_after_hwframe+0x4b/0x53

Ensure the pointer is valid before use by checking it for NULL. If it
is valid, immediately call netdev_hold() to take a reference, and
preventing the netdevice from being freed while it is in use.

Fixes: 7a9fb35e8c3a ("net/mlx5e: Do not reload ethernet ports when changing eswitch mode")
Signed-off-by: Jianbo Liu <jianbol@nvidia.com>
Reviewed-by: Cosmin Ratiu <cratiu@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Reviewed-by: Dragos Tatulea <dtatulea@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/1757939074-617281-2-git-send-email-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
4 weeks agoMAINTAINERS: make the DPLL entry cover drivers
Jakub Kicinski [Mon, 15 Sep 2025 23:42:55 +0000 (16:42 -0700)]
MAINTAINERS: make the DPLL entry cover drivers

DPLL maintainers should probably be CCed on driver patches, too.
Remove the *, which makes the pattern only match files directly
under drivers/dpll but not its sub-directories.

Acked-by: Jiri Pirko <jiri@nvidia.com>
Acked-by: Vadim Fedorenko <vadim.fedorenko@linux.dev>
Acked-by: Arkadiusz Kubalewski <arkadiusz.kubalewski@intel.com>
Link: https://patch.msgid.link/20250915234255.1306612-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
4 weeks agodoc/netlink: Fix typos in operation attributes
Remy D. Farley [Sat, 13 Sep 2025 14:05:28 +0000 (14:05 +0000)]
doc/netlink: Fix typos in operation attributes

I'm trying to generate Rust bindings for netlink using the yaml spec.

It looks like there's a typo in conntrack spec: attribute set conntrack-attrs
defines attributes "counters-{orig,reply}" (plural), while get operation
references "counter-{orig,reply}" (singular). The latter should be fixed, as it
denotes multiple counters (packet and byte). The corresonding C define is
CTA_COUNTERS_ORIG.

Also, dump request references "nfgen-family" attribute, which neither exists in
conntrack-attrs attrset nor ctattr_type enum. There's member of nfgenmsg struct
with the same name, which is where family value is actually taken from.

> static int ctnetlink_dump_exp_ct(struct net *net, struct sock *ctnl,
>                struct sk_buff *skb,
>                const struct nlmsghdr *nlh,
>                const struct nlattr * const cda[],
>                struct netlink_ext_ack *extack)
> {
>   int err;
>   struct nfgenmsg *nfmsg = nlmsg_data(nlh);
>   u_int8_t u3 = nfmsg->nfgen_family;
                         ^^^^^^^^^^^^

Signed-off-by: Remy D. Farley <one-d-wide@protonmail.com>
Fixes: 23fc9311a526 ("netlink: specs: add conntrack dump and stats dump support")
Link: https://patch.msgid.link/20250913140515.1132886-1-one-d-wide@protonmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
4 weeks agoMerge tag 'perf-tools-fixes-for-v6.17-2025-09-16' of git://git.kernel.org/pub/scm...
Linus Torvalds [Tue, 16 Sep 2025 22:15:54 +0000 (15:15 -0700)]
Merge tag 'perf-tools-fixes-for-v6.17-2025-09-16' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools

Pull perf tools fixes from Namhyung Kim:
 "A small set of fixes for crashes in different commands and conditions"

* tag 'perf-tools-fixes-for-v6.17-2025-09-16' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools:
  perf maps: Ensure kmap is set up for all inserts
  perf lock: Provide a host_env for session new
  perf subcmd: avoid crash in exclude_cmds when excludes is empty