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174,654 commits

Author SHA1 Message Date
Linus Torvalds
f1a5e78a55 drm fixes for 7.1-rc2
core and helpers:
 - calculate framebuffer geometry with format helpers
 - fix docs
 
 amdgpu:
 - GFX12 fix for CONFIG_DRM_DEBUG_MM configs
 - Fix DC analog support
 - Userq fixes
 - GART placement fix
 - Aldebaran SMU fixes
 - AMDGPU_INFO_READ_MMR_REG fix
 - UVD 3.1 fix
 - GC 6 TCC fix
 - Fix root reservation in amdgpu_vm_handle_fault()
 - RAS fix
 - Module reload fix for APUs
 - Fix build for CONFIG_DRM_FBDEV_EMULATION=n
 - IGT DWB regression fix
 - GC 11.5.4 fix
 - VCN user fence fixes
 - JPEG user fence fixes
 - SMU 13.0.6 fix
 - VCN 3/4 IB parser fixes
 - NV3x+ dGPU vblank fix
 - DCE6/8 fixes for LVDS/eDP panels without an EDID
 
 amdkfd:
 - Fix for when CONFIG_HSA_AMD is not set
 - SVM fixes
 
 xe:
 - uapi: Add missing pad and extensions check
 - uapi: Reject unsafe PAT indices for CPU cached memory
 - Drop registration of guc_submit_wedged_fini from xe_guc_submit_wedge
 - Xe3p tuning and workaround fixes
 - USE drm mm instead of drm SA for CCS read/write
 - Fix leaks and null derefs
 - Fix Wa_18022495364
 
 appletbdrm:
 - allocate protocol buffers with kvzalloc()
 
 dma-buf:
 - fix docs
 
 imagination:
 - avoid segfault in debugfs
 
 ofdrm:
 - put PCI device reference on errors
 
 udl:
 - increase USB timeout
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Merge tag 'drm-fixes-2026-05-02' of https://gitlab.freedesktop.org/drm/kernel

Pull drm fixes from Dave Airlie:
 "Fixes for rc2, the usual amdgpu/xe double header, I think xe had a
  couple of weeks combined due to some maintainer access issues,
  otherwise there's just a few misc fixes and documentation fixups.

  core and helpers:
   - calculate framebuffer geometry with format helpers
   - fix docs

  amdgpu:
   - GFX12 fix for CONFIG_DRM_DEBUG_MM configs
   - Fix DC analog support
   - Userq fixes
   - GART placement fix
   - Aldebaran SMU fixes
   - AMDGPU_INFO_READ_MMR_REG fix
   - UVD 3.1 fix
   - GC 6 TCC fix
   - Fix root reservation in amdgpu_vm_handle_fault()
   - RAS fix
   - Module reload fix for APUs
   - Fix build for CONFIG_DRM_FBDEV_EMULATION=n
   - IGT DWB regression fix
   - GC 11.5.4 fix
   - VCN user fence fixes
   - JPEG user fence fixes
   - SMU 13.0.6 fix
   - VCN 3/4 IB parser fixes
   - NV3x+ dGPU vblank fix
   - DCE6/8 fixes for LVDS/eDP panels without an EDID

  amdkfd:
   - Fix for when CONFIG_HSA_AMD is not set
   - SVM fixes

  xe:
   - uapi: Add missing pad and extensions check
   - uapi: Reject unsafe PAT indices for CPU cached memory
   - Drop registration of guc_submit_wedged_fini from xe_guc_submit_wedge
   - Xe3p tuning and workaround fixes
   - USE drm mm instead of drm SA for CCS read/write
   - Fix leaks and null derefs
   - Fix Wa_18022495364

  appletbdrm:
   - allocate protocol buffers with kvzalloc()

  dma-buf:
   - fix docs

  imagination:
   - avoid segfault in debugfs

  ofdrm:
   - put PCI device reference on errors

  udl:
   - increase USB timeout"

* tag 'drm-fixes-2026-05-02' of https://gitlab.freedesktop.org/drm/kernel: (77 commits)
  drm/xe/uapi: Reject coh_none PAT index for CPU_ADDR_MIRROR
  drm/xe/uapi: Reject coh_none PAT index for CPU cached memory in madvise
  drm/xe/xelp: Fix Wa_18022495364
  drm/xe/gsc: Fix BO leak on error in query_compatibility_version()
  drm/xe/eustall: Fix drm_dev_put called before stream disable in close
  drm/xe: Fix error cleanup in xe_exec_queue_create_ioctl()
  drm/xe: Fix dma-buf attachment leak in xe_gem_prime_import()
  drm/xe: Fix bo leak in xe_dma_buf_init_obj() on allocation failure
  drm/xe/bo: Fix bo leak on GGTT flag validation in xe_bo_init_locked()
  drm/xe/bo: Fix bo leak on unaligned size validation in xe_bo_init_locked()
  drm/xe: Fix potential NULL deref in xe_exec_queue_tlb_inval_last_fence_put_unlocked
  drm/xe/vf: Use drm mm instead of drm sa for CCS read/write
  drm/xe: Add memory pool with shadow support
  drm/xe/debugfs: Correct printing of register whitelist ranges
  drm/xe: Mark ROW_CHICKEN5 as a masked register
  drm/xe/tuning: Use proper register offset for GAMSTLB_CTRL
  drm/xe/xe3p_lpg: Add missing indirect ring state feature flag
  drm/xe: Drop redundant rtp entries for Wa_14019988906 & Wa_14019877138
  drm/xe/vm: Add missing pad and extensions check
  drm/xe: Drop registration of guc_submit_wedged_fini from xe_guc_submit_wedge()
  ...
2026-05-01 16:56:08 -07:00
Linus Torvalds
6fe0be6dc7 block-7.1-20260430
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Merge tag 'block-7.1-20260430' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux

Pull block fixes from Jens Axboe:

 - MD pull request via Yu:
      - Fix a raid5 UAF on IO across the reshape position
      - Avoid failing RAID1/RAID10 devices for invalid IO errors
      - Fix RAID10 divide-by-zero when far_copies is zero
      - Restore bitmap grow through sysfs
      - Use mddev_is_dm() instead of open-coding gendisk checks
      - Use ATTRIBUTE_GROUPS() for md default sysfs attributes
      - Replace open-coded wait loops with wait_event helpers

 - NVMe pull request via Keith:
      - Target data transfer size configuation (Aurelien)
      - Enable P2P for RDMA (Shivaji Kant)
      - TCP target updates (Maurizio, Alistair, Chaitanya, Shivam Kumar)
      - TCP host updates (Alistair, Chaitanya)
      - Authentication updates (Alistair, Daniel, Chris Leech)
      - Multipath fixes (John Garry)
      - New quirks (Alan Cui, Tao Jiang)
      - Apple driver fix (Fedor Pchelkin)
      - PCI admin doorbell update fix (Keith)

 - Properly propagate CDROM read-only state to the block layer

* tag 'block-7.1-20260430' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux: (35 commits)
  md: use ATTRIBUTE_GROUPS() for md default sysfs attributes
  md: use mddev_is_dm() instead of open-coding gendisk checks
  md/raid1: replace wait loop with wait_event_idle() in raid1_write_request()
  md/md-bitmap: add a none backend for bitmap grow
  md/md-bitmap: split bitmap sysfs groups
  md: factor bitmap creation away from sysfs handling
  md: use mddev_lock_nointr() in mddev_suspend_and_lock_nointr()
  md: replace wait loop with wait_event() in md_handle_request()
  md/raid10: fix divide-by-zero in setup_geo() with zero far_copies
  md/raid1,raid10: don't fail devices for invalid IO errors
  MAINTAINERS: Add Xiao Ni as md/raid reviewer
  md/raid5: Fix UAF on IO across the reshape position
  cdrom, scsi: sr: propagate read-only status to block layer via set_disk_ro()
  nvme-auth: Hash DH shared secret to create session key
  nvme-pci: fix missed admin queue sq doorbell write
  nvme-auth: Include SC_C in RVAL controller hash
  nvme-tcp: teardown circular locking fixes
  nvmet-tcp: Don't clear tls_key when freeing sq
  Revert "nvmet-tcp: Don't free SQ on authentication success"
  nvme: skip trace completion for host path errors
  ...
2026-05-01 11:26:15 -07:00
Linus Torvalds
9d88bb929a io_uring-7.1-20260430
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Merge tag 'io_uring-7.1-20260430' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux

Pull io_uring fixes from Jens Axboe:

 - Remove dead struct io_buffer_list member

 - Fix for incrementally consumed buffers with recvmsg multishot, which
   requires a minimum value left in a buffer for any receive for the
   headers. If there's still a bit of buffer left but it's smaller than
   that value, then userspace will see a spurious -EFAULT returned in
   the CQE

 - Locking fix for the DEFER_TASKRUN retry list, which otherwise could
   race with fallback cancelations. If the task is exiting with
   task_work left in both the normal and retry list AND the exit cleanup
   races with the task running task work, then entries could either be
   doubly completed or lost

 - Cap NAPI busy poll timeout to something sane, to avoid syzbot running
   into excessive polling and triggering warnings around that

* tag 'io_uring-7.1-20260430' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux:
  io_uring/tw: serialize ctx->retry_llist with ->uring_lock
  io_uring/napi: cap busy_poll_to 10 msec
  io_uring/kbuf: support min length left for incremental buffers
  io_uring/kbuf: kill dead struct io_buffer_list 'nr_entries' member
2026-05-01 11:01:31 -07:00
Linus Torvalds
2b4d0215be 20 hotfixes. All are for MM (and for MMish maintainers). 9 are cc:stable
and the remainder are for post-7.0 issues or aren't deemed suitable for
 backporting.
 
 There's a 2 patch DAMON series from SeongJae Park which address races
 which could lead to use-after-free errors.  And a 3 patch DAMON series
 which avoids the possibility of presenting stale parameter values to
 users.
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Merge tag 'mm-hotfixes-stable-2026-04-30-15-39' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull MM fixes from Andrew Morton:
 "20 hotfixes. All are for MM (and for MMish maintainers). 9 are
  cc:stable and the remainder are for post-7.0 issues or aren't deemed
  suitable for backporting.

  There are two DAMON series from SeongJae Park which address races
  which could lead to use-after-free errors, and avoid the possibility
  of presenting stale parameter values to users"

* tag 'mm-hotfixes-stable-2026-04-30-15-39' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
  mm: memcontrol: fix rcu unbalance in get_non_dying_memcg_end()
  mm/userfaultfd: detect VMA type change after copy retry in mfill_copy_folio_retry()
  MAINTAINERS: remove stale kdump project URL
  mm/damon/stat: detect and use fresh enabled value
  mm/damon/lru_sort: detect and use fresh enabled and kdamond_pid values
  mm/damon/reclaim: detect and use fresh enabled and kdamond_pid values
  selftests/mm: specify requirement for PROC_MEM_ALWAYS_FORCE=y
  mm/damon/sysfs-schemes: protect path kfree() with damon_sysfs_lock
  mm/damon/sysfs-schemes: protect memcg_path kfree() with damon_sysfs_lock
  MAINTAINERS: update Li Wang's email address
  MAINTAINERS, mailmap: update email address for Qi Zheng
  MAINTAINERS: update Liam's email address
  mm/hugetlb_cma: round up per_node before logging it
  MAINTAINERS: fix regex pattern in CORE MM category
  mm/vma: do not try to unmap a VMA if mmap_prepare() invoked from mmap()
  mm: start background writeback based on per-wb threshold for strictlimit BDIs
  kho: fix error handling in kho_add_subtree()
  liveupdate: fix return value on session allocation failure
  mailmap: update entry for Dan Carpenter
  vmalloc: fix buffer overflow in vrealloc_node_align()
2026-05-01 08:45:23 -07:00
Dave Airlie
b006ef5fd6 amd-drm-fixes-7.1-2026-04-30:
amdgpu:
 - GFX12 fix for CONFIG_DRM_DEBUG_MM configs
 - Fix DC analog support
 - Userq fixes
 - GART placement fix
 - Aldebaran SMU fixes
 - AMDGPU_INFO_READ_MMR_REG fix
 - UVD 3.1 fix
 - GC 6 TCC fix
 - Fix root reservation in amdgpu_vm_handle_fault()
 - RAS fix
 - Module reload fix for APUs
 - Fix build for CONFIG_DRM_FBDEV_EMULATION=n
 - IGT DWB regression fix
 - GC 11.5.4 fix
 - VCN user fence fixes
 - JPEG user fence fixes
 - SMU 13.0.6 fix
 - VCN 3/4 IB parser fixes
 - NV3x+ dGPU vblank fix
 - DCE6/8 fixes for LVDS/eDP panels without an EDID
 
 amdkfd:
 - Fix for when CONFIG_HSA_AMD is not set
 - SVM fixes
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Merge tag 'amd-drm-fixes-7.1-2026-04-30' of https://gitlab.freedesktop.org/agd5f/linux into drm-fixes

amd-drm-fixes-7.1-2026-04-30:

amdgpu:
- GFX12 fix for CONFIG_DRM_DEBUG_MM configs
- Fix DC analog support
- Userq fixes
- GART placement fix
- Aldebaran SMU fixes
- AMDGPU_INFO_READ_MMR_REG fix
- UVD 3.1 fix
- GC 6 TCC fix
- Fix root reservation in amdgpu_vm_handle_fault()
- RAS fix
- Module reload fix for APUs
- Fix build for CONFIG_DRM_FBDEV_EMULATION=n
- IGT DWB regression fix
- GC 11.5.4 fix
- VCN user fence fixes
- JPEG user fence fixes
- SMU 13.0.6 fix
- VCN 3/4 IB parser fixes
- NV3x+ dGPU vblank fix
- DCE6/8 fixes for LVDS/eDP panels without an EDID

amdkfd:
- Fix for when CONFIG_HSA_AMD is not set
- SVM fixes

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Alex Deucher <alexander.deucher@amd.com>
Link: https://patch.msgid.link/20260430135619.3929877-1-alexander.deucher@amd.com
2026-05-01 12:48:57 +10:00
Linus Torvalds
26fd6bff2c Besides an out-of-bound bug, this is about properly supporting Winbond
octal SPI NAND chips which use a specific pattern for stuffing more
 address bits in some operations. This PR only carries the use of the a
 spi-mem flag in SPI NAND. This flag has been added in the spi-mem layer
 just before the merge window through the spi tree.
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Merge tag 'mtd/fixes-for-7.1-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux

Pull mtd fixes from Miquel Raynal:
 "Besides an out-of-bound bug, this is about properly supporting Winbond
  octal SPI NAND chips which use a specific pattern for stuffing more
  address bits in some operations. This uses the spi-mem flag in SPI
  NAND that was added to the spi-mem layer just before the merge window
  through the spi tree"

* tag 'mtd/fixes-for-7.1-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux:
  mtd: spinand: winbond: Fix ODTR write VCR on W35NxxJW
  mtd: spinand: winbond: Set the packed page read flag to W35N02/04JW
  mtd: spinand: Add support for packed read data ODTR commands
  mtd: spi-nor: debugfs: fix out-of-bounds read in spi_nor_params_show()
2026-04-30 17:36:48 -07:00
Linus Torvalds
cae4ef6f9a ACPI support fixes for 7.1-rc2
- Fix removal code ordering in the ACPI TAD driver, refine timer value
    computations and checks in its RTC class device interface, make it
    use the __ATTRIBUTE_GROUPS() macro, and fix a comment in it (Rafael
    Wysocki)
 
  - Fix EINJV2 memory error injection in APEI (Tony Luck)
 
  - Add missing notifier_block structure forward declaration to
    acpi_bus.h (Bartosz Golaszewski)
 
  - Fix related_cpus inconsistency during CPU hotplug in the ACPI CPPC
    library (Jinjie Ruan)
 
  - Add a quirk to force native backlight on HP OMEN 16 (8A44) in the
    ACPI video bus driver (Shivam Kalra)
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Merge tag 'acpi-7.1-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI support fixes from Rafael Wysocki:
 "These fix leftover issues in the ACPI Time and Alarm Device (TAD)
  driver on top of the recently merged updates of it and address
  assorted issues in the ACPI support code:

   - Fix removal code ordering in the ACPI TAD driver, refine timer
     value computations and checks in its RTC class device interface,
     make it use the __ATTRIBUTE_GROUPS() macro, and fix a comment in it
     (Rafael Wysocki)

   - Fix EINJV2 memory error injection in APEI (Tony Luck)

   - Add missing notifier_block structure forward declaration to
     acpi_bus.h (Bartosz Golaszewski)

   - Fix related_cpus inconsistency during CPU hotplug in the ACPI CPPC
     library (Jinjie Ruan)

   - Add a quirk to force native backlight on HP OMEN 16 (8A44) in the
     ACPI video bus driver (Shivam Kalra)"

* tag 'acpi-7.1-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  ACPI: bus: add missing forward declaration to acpi_bus.h
  ACPI: video: force native backlight on HP OMEN 16 (8A44)
  ACPI: TAD: Fix up a comment in acpi_tad_probe()
  ACPI: TAD: RTC: Refine timer value computations and checks
  ACPI: TAD: Use devres for all driver cleanup
  ACPI: TAD: Use __ATTRIBUTE_GROUPS() macro
  ACPI: CPPC: Fix related_cpus inconsistency during CPU hotplug
  ACPI: APEI: EINJ: Fix EINJV2 memory error injection
  ACPICA: Provide #defines for EINJV2 error types
2026-04-30 17:20:45 -07:00
Rafael J. Wysocki
36a96eda15 Merge branches 'acpi-apei', 'acpi-bus', 'acpi-cppc' and 'acpi-video'
Merge assorted ACPI support fixes for 7.1-rc2:

 - Fix EINJV2 memory error injection in APEI (Tony Luck)

 - Add missing notifier_block structure forward declaration to
   acpi_bus.h (Bartosz Golaszewski)

 - Fix related_cpus inconsistency during CPU hotplug in the ACPI CPPC
   library (Jinjie Ruan)

 - Add a quirk to force native backlight on HP OMEN 16 (8A44) in the
   ACPI video bus driver (Shivam Kalra)

* acpi-apei:
  ACPI: APEI: EINJ: Fix EINJV2 memory error injection
  ACPICA: Provide #defines for EINJV2 error types

* acpi-bus:
  ACPI: bus: add missing forward declaration to acpi_bus.h

* acpi-cppc:
  ACPI: CPPC: Fix related_cpus inconsistency during CPU hotplug

* acpi-video:
  ACPI: video: force native backlight on HP OMEN 16 (8A44)
2026-04-30 21:07:06 +02:00
Linus Torvalds
08d0d34666 Including fixes from netfilter.
Current release - regressions:
 
   - ipmr: free mr_table after RCU grace period.
 
 Previous releases - regressions:
 
   - core: add net_iov_init() and use it to initialize ->page_type
 
   - sched: taprio: fix NULL pointer dereference in class dump
 
   - netfilter: nf_tables:
     - use list_del_rcu for netlink hooks
     - fix strict mode inbound policy matching
 
   - tcp: make probe0 timer handle expired user timeout
 
   - vrf: fix a potential NPD when removing a port from a VRF
 
   - eth: ice:
     - fix NULL pointer dereference in ice_reset_all_vfs()
     - fix infinite recursion in ice_cfg_tx_topo via ice_init_dev_hw
 
 Previous releases - always broken:
 
   - page_pool: fix memory-provider leak in error path
 
   - sched: sch_cake: annotate data-races in cake_dump_stats()
 
   - mptcp: fix scheduling with atomic in timestamp sockopt
 
   - psp: check for device unregister when creating assoc
 
   - tls: fix strparser anchor skb leak on offload RX setup failure
 
   - eth: stmmac: prevent NULL deref when RX memory exhausted
 
   - eth: airoha: do not read uninitialized fragment address
 
   - eth: rtl8150: fix use-after-free in rtl8150_start_xmit()
 
 Misc:
 
   - add Ido Schimmel as IPv4/IPv6 maintainer
 
   - add David Heidelberg as NFC subsystem maintainer
 
 Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Merge tag 'net-7.1-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Pull networking fixes from Paolo Abeni:
 "Including fixes from netfilter.

  Current release - regressions:

   - ipmr: free mr_table after RCU grace period.

  Previous releases - regressions:

   - core: add net_iov_init() and use it to initialize ->page_type

   - sched: taprio: fix NULL pointer dereference in class dump

   - netfilter: nf_tables:
      - use list_del_rcu for netlink hooks
      - fix strict mode inbound policy matching

   - tcp: make probe0 timer handle expired user timeout

   - vrf: fix a potential NPD when removing a port from a VRF

   - eth: ice:
      - fix NULL pointer dereference in ice_reset_all_vfs()
      - fix infinite recursion in ice_cfg_tx_topo via ice_init_dev_hw

  Previous releases - always broken:

   - page_pool: fix memory-provider leak in error path

   - sched: sch_cake: annotate data-races in cake_dump_stats()

   - mptcp: fix scheduling with atomic in timestamp sockopt

   - psp: check for device unregister when creating assoc

   - tls: fix strparser anchor skb leak on offload RX setup failure

   - eth:
      - stmmac: prevent NULL deref when RX memory exhausted
      - airoha: do not read uninitialized fragment address
      - rtl8150: fix use-after-free in rtl8150_start_xmit()

  Misc:

   - add Ido Schimmel as IPv4/IPv6 maintainer

   - add David Heidelberg as NFC subsystem maintainer"

* tag 'net-7.1-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (79 commits)
  net/sched: cls_flower: revert unintended changes
  sfc: fix error code in efx_devlink_info_running_versions()
  net: tls: fix strparser anchor skb leak on offload RX setup failure
  ice: add dpll peer notification for paired SMA and U.FL pins
  ice: fix missing dpll notifications for SW pins
  dpll: export __dpll_pin_change_ntf() for use under dpll_lock
  ice: fix SMA and U.FL pin state changes affecting paired pin
  ice: fix missing SMA pin initialization in DPLL subsystem
  ice: fix infinite recursion in ice_cfg_tx_topo via ice_init_dev_hw
  ice: fix NULL pointer dereference in ice_reset_all_vfs()
  iavf: add VIRTCHNL_OP_ADD_VLAN to success completion handler
  iavf: wait for PF confirmation before removing VLAN filters
  iavf: stop removing VLAN filters from PF on interface down
  iavf: rename IAVF_VLAN_IS_NEW to IAVF_VLAN_ADDING
  page_pool: fix memory-provider leak in page_pool_create_percpu() error path
  bonding: 3ad: implement proper RCU rules for port->aggregator
  net: airoha: Do not return err in ndo_stop() callback
  hv_sock: fix ARM64 support
  MAINTAINERS: update the IPv4/IPv6 entry and add Ido Schimmel
  selftests: drv-net: clarify linters and frameworks in README
  ...
2026-04-30 08:45:43 -07:00
Ivan Vecera
620055cb10 dpll: export __dpll_pin_change_ntf() for use under dpll_lock
Export __dpll_pin_change_ntf() so that drivers can send pin change
notifications from within pin callbacks, which are already called
under dpll_lock. Using dpll_pin_change_ntf() in that context would
deadlock.

Add lockdep_assert_held() to catch misuse without the lock held.

Acked-by: Vadim Fedorenko <vadim.fedorenko@linux.dev>
Signed-off-by: Ivan Vecera <ivecera@redhat.com>
Signed-off-by: Petr Oros <poros@redhat.com>
Tested-by: Alexander Nowlin <alexander.nowlin@intel.com>
Reviewed-by: Arkadiusz Kubalewski <arkadiusz.kubalewski@intel.com>
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Link: https://patch.msgid.link/20260427-jk-iwl-net-petr-oros-fixes-v1-9-cdcb48303fd8@intel.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2026-04-30 11:37:39 +02:00
Linus Torvalds
e75a43c7ce tracing fixes for v7.1:
- Fix inverted check of registering the stats for branch tracing
 
   When calling register_stat_tracer() which returns zero on success and
   negative on error, the callers were checking the return of zero as an
   error and printing a warning message. Because this was just a normal
   printk() message and not a WARN(), it wasn't caught in any testing.
 
   Fix the check to print the warning message when an error actually happens.
 
 - Fix a typo in a comment in tracepoint.h
 
 - Limit the size of event probes to 3K in size
 
   It is possible to create a dynamic event probe via the tracefs system that
   is greater than the max size of an event that the ring buffer can hold.
   This basically causes the event to become useless. Limit the size of an
   event probe to be 3K as that should be large enough to handle any dynamic
   events being created, and fits within the PAGE_SIZE sub-buffers of the
   ring buffer.
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Merge tag 'trace-v7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace

Pull tracing fixes from Steven Rostedt:

 - Fix inverted check of registering the stats for branch tracing

   When calling register_stat_tracer() which returns zero on success and
   negative on error, the callers were checking the return of zero as an
   error and printing a warning message. Because this was just a normal
   printk() message and not a WARN(), it wasn't caught in any testing.

   Fix the check to print the warning message when an error actually
   happens.

 - Fix a typo in a comment in tracepoint.h

 - Limit the size of event probes to 3K in size

   It is possible to create a dynamic event probe via the tracefs system
   that is greater than the max size of an event that the ring buffer
   can hold. This basically causes the event to become useless.

   Limit the size of an event probe to be 3K as that should be large
   enough to handle any dynamic events being created, and fits within
   the PAGE_SIZE sub-buffers of the ring buffer.

* tag 'trace-v7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
  tracing/probes: Limit size of event probe to 3K
  tracepoint: Fix typo in tracepoint.h comment
  tracing: branch: Fix inverted check on stat tracer registration
2026-04-29 22:21:44 -07:00
Eric Dumazet
c4f050ce06 bonding: 3ad: implement proper RCU rules for port->aggregator
syzbot found a data-race in bond_3ad_get_active_agg_info /
bond_3ad_state_machine_handler [1] which hints at lack of proper
RCU implementation.

Add __rcu qualifier to port->aggregator, and add proper RCU API.

[1]

BUG: KCSAN: data-race in bond_3ad_get_active_agg_info / bond_3ad_state_machine_handler

write to 0xffff88813cf5c4b0 of 8 bytes by task 36 on cpu 0:
  ad_port_selection_logic drivers/net/bonding/bond_3ad.c:1659 [inline]
  bond_3ad_state_machine_handler+0x9d5/0x2d60 drivers/net/bonding/bond_3ad.c:2569
  process_one_work kernel/workqueue.c:3302 [inline]
  process_scheduled_works+0x4f0/0x9c0 kernel/workqueue.c:3385
  worker_thread+0x58a/0x780 kernel/workqueue.c:3466
  kthread+0x22a/0x280 kernel/kthread.c:436
  ret_from_fork+0x146/0x330 arch/x86/kernel/process.c:158
  ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

read to 0xffff88813cf5c4b0 of 8 bytes by task 22063 on cpu 1:
  __bond_3ad_get_active_agg_info drivers/net/bonding/bond_3ad.c:2858 [inline]
  bond_3ad_get_active_agg_info+0x8c/0x230 drivers/net/bonding/bond_3ad.c:2881
  bond_fill_info+0xe0f/0x10f0 drivers/net/bonding/bond_netlink.c:853
  rtnl_link_info_fill net/core/rtnetlink.c:906 [inline]
  rtnl_link_fill+0x1d7/0x4e0 net/core/rtnetlink.c:927
  rtnl_fill_ifinfo+0xf8e/0x1380 net/core/rtnetlink.c:2168
  rtmsg_ifinfo_build_skb+0x11c/0x1b0 net/core/rtnetlink.c:4453
  rtmsg_ifinfo_event net/core/rtnetlink.c:4486 [inline]
  rtmsg_ifinfo+0x6d/0x110 net/core/rtnetlink.c:4495
  __dev_notify_flags+0x76/0x390 net/core/dev.c:9790
  netif_change_flags+0xac/0xd0 net/core/dev.c:9823
  do_setlink+0x905/0x2950 net/core/rtnetlink.c:3180
  rtnl_group_changelink net/core/rtnetlink.c:3813 [inline]
  __rtnl_newlink net/core/rtnetlink.c:3981 [inline]
  rtnl_newlink+0xf55/0x1400 net/core/rtnetlink.c:4109
  rtnetlink_rcv_msg+0x64b/0x720 net/core/rtnetlink.c:6995
  netlink_rcv_skb+0x123/0x220 net/netlink/af_netlink.c:2550
  rtnetlink_rcv+0x1c/0x30 net/core/rtnetlink.c:7022
  netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline]
  netlink_unicast+0x5a8/0x680 net/netlink/af_netlink.c:1344
  netlink_sendmsg+0x5c8/0x6f0 net/netlink/af_netlink.c:1894
  sock_sendmsg_nosec net/socket.c:787 [inline]
  __sock_sendmsg net/socket.c:802 [inline]
  ____sys_sendmsg+0x563/0x5b0 net/socket.c:2698
  ___sys_sendmsg+0x195/0x1e0 net/socket.c:2752
  __sys_sendmsg net/socket.c:2784 [inline]
  __do_sys_sendmsg net/socket.c:2789 [inline]
  __se_sys_sendmsg net/socket.c:2787 [inline]
  __x64_sys_sendmsg+0xd4/0x160 net/socket.c:2787
  x64_sys_call+0x194c/0x3020 arch/x86/include/generated/asm/syscalls_64.h:47
  do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
  do_syscall_64+0x12c/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

value changed: 0x0000000000000000 -> 0xffff88813cf5c400

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 UID: 0 PID: 22063 Comm: syz.0.31122 Tainted: G        W           syzkaller #0 PREEMPT(full)
Tainted: [W]=WARN
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026

Fixes: 47e91f5600 ("bonding: use RCU protection for 3ad xmit path")
Reported-by: syzbot+9bb2ff2a4ab9e17307e1@syzkaller.appspotmail.com
Closes: https://lore.kernel.org/netdev/69f0a82f.050a0220.3aadc4.0000.GAE@google.com/
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Jay Vosburgh <jv@jvosburgh.net>
Cc: Andrew Lunn <andrew+netdev@lunn.ch>
Link: https://patch.msgid.link/20260428123207.3809211-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-04-29 18:32:02 -07:00
Jakub Kicinski
735a309b4b net: add net_iov_init() and use it to initialize ->page_type
Commit db359fccf2 ("mm: introduce a new page type for page pool in
page type") added a page_type field to struct net_iov at the same
offset as struct page::page_type, so that page_pool_set_pp_info() can
call __SetPageNetpp() uniformly on both pages and net_iovs.

The page-type API requires the field to hold the UINT_MAX "no type"
sentinel before a type can be set; for real struct page that invariant
is established by the page allocator on free. struct net_iov is not
allocated through the page allocator, so the field is left as zero
(io_uring zcrx, which uses __GFP_ZERO) or as slab garbage (devmem,
which uses kvmalloc_objs() without zeroing). When the page pool then
calls page_pool_set_pp_info() on a freshly-bound niov,
__SetPageNetpp()'s VM_BUG_ON_PAGE(page->page_type != UINT_MAX) fires
and the kernel BUGs. Triggered in selftests by io_uring zcrx setup
through the fbnic queue restart path:

 kernel BUG at ./include/linux/page-flags.h:1062!
 RIP: 0010:page_pool_set_pp_info (./include/linux/page-flags.h:1062
                                  net/core/page_pool.c:716)
 Call Trace:
  <TASK>
  net_mp_niov_set_page_pool (net/core/page_pool.c:1360)
  io_pp_zc_alloc_netmems (io_uring/zcrx.c:1089 io_uring/zcrx.c:1110)
  fbnic_fill_bdq (./include/net/page_pool/helpers.h:160
                  drivers/net/ethernet/meta/fbnic/fbnic_txrx.c:906)
  __fbnic_nv_restart (drivers/net/ethernet/meta/fbnic/fbnic_txrx.c:2470
                      drivers/net/ethernet/meta/fbnic/fbnic_txrx.c:2874)
  fbnic_queue_start (drivers/net/ethernet/meta/fbnic/fbnic_txrx.c:2903)
  netdev_rx_queue_reconfig (net/core/netdev_rx_queue.c:137)
  __netif_mp_open_rxq (net/core/netdev_rx_queue.c:234)
  io_register_zcrx (io_uring/zcrx.c:818 io_uring/zcrx.c:903)
  __io_uring_register (io_uring/register.c:931)
  __do_sys_io_uring_register (io_uring/register.c:1029)
  do_syscall_64 (arch/x86/entry/syscall_64.c:63
                 arch/x86/entry/syscall_64.c:94)
  </TASK>

The same path is reachable through devmem dmabuf binding via
netdev_nl_bind_rx_doit() -> net_devmem_bind_dmabuf_to_queue().

Add a net_iov_init() helper that stamps ->owner, ->type and the
->page_type sentinel, and use it from both the devmem and io_uring
zcrx niov init loops.

Fixes: db359fccf2 ("mm: introduce a new page type for page pool in page type")
Acked-by: Vlastimil Babka (SUSE) <vbabka@kernel.org>
Acked-by: Byungchul Park <byungchul@sk.com>
Reviewed-by: Jens Axboe <axboe@kernel.dk>
Acked-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://patch.msgid.link/20260428025320.853452-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-04-29 16:40:08 -07:00
Jakub Kicinski
67d7ae3340 netfilter pull request 26-04-28
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Merge tag 'nf-26-04-28' of git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf

Pablo Neira Ayuso says:

====================
Netfilter fixes for net

The following patchset contains Netfilter fixes for net:

1) IEEE1394 ARP payload contains no target hardware address in the
   ARP packet. Apparently, arp_tables was never updated to deal with
   IEEE1394 ARP properly. To deal with this, return no match in case
   the target hardware address selector is used, either for inverse or
   normal match. Moreover, arpt_mangle disallows mangling of the target
   hardware and IP address because, it is not worth to adjust the
   offset calculation to fix this, we suspect no users of arp_tables
   for this family.

2) Use list_del_rcu() to delete device hooks in nf_tables, this hook
   list is RCU protected, concurrent netlink dump readers can be
   walking on this list, fix it by adding a helper function and use it
   for consistency. From Florian Westphal.

3) Add list_splice_rcu(), this is useful for joining the local list of
   new device hooks to the RCU protected hook list in chain and
   flowtable. Reviewed by Paul E. McKenney.

4) Use list_splice_rcu() to publish the new device hooks in chain and
   flowtable to fix concurrent netlink dump traversal.

5) Add a new hook transaction object to track device hook deletions.
   The current approach moves device hooks to be deleted around during
   the preparation phase, this breaks concurrent RCU reader via netlink
   dump. This new hook transaction is combined with NFT_HOOK_REMOVE
   flag to annotate hooks for removal in the preparation phase.

6) xt_policy inbound policy check in strict mode can lead to
   out-of-bound access of the secpath array due to incorrect.
   The iteration over the secpath needs to be reversed in the inbound
   to check for the human readable policy, expecting inner in first
   position and outer in second position, the secpath from inbound
   actually stores outer in first position then in second position.
   From Jiexun Wang.

7) Fix possible zero shift in nft_bitwise triggering UBSAN splat,
   reject zero shift from control plane, from Kai Ma.

8) Replace simple_strtoul() in the conntrack SIP helper since it relies
   on nul-terminated strings. From Florian Westphal.

* tag 'nf-26-04-28' of git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf:
  netfilter: nf_conntrack_sip: don't use simple_strtoul
  netfilter: reject zero shift in nft_bitwise
  netfilter: xt_policy: fix strict mode inbound policy matching
  netfilter: nf_tables: add hook transactions for device deletions
  netfilter: nf_tables: join hook list via splice_list_rcu() in commit phase
  rculist: add list_splice_rcu() for private lists
  netfilter: nf_tables: use list_del_rcu for netlink hooks
  netfilter: arp_tables: fix IEEE1394 ARP payload parsing
====================

Link: https://patch.msgid.link/20260428095840.51961-1-pablo@netfilter.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-04-28 17:41:06 -07:00
Linus Torvalds
664f0f6be3 sched_ext: Fixes for v7.1-rc1
The merge window pulled in the cgroup sub-scheduler infrastructure, and
 new AI reviews are accelerating bug reporting and fixing - hence the
 larger than usual fixes batch.
 
 - Use-after-frees during scheduler load/unload. The disable path
   could free the BPF scheduler while deferred irq_work / kthread work
   was still in flight; cgroup setter callbacks read the active
   scheduler outside the rwsem that synchronizes against teardown.
   Fixed both, and reused the disable drain in the enable error paths
   so the BPF JIT page can't be freed under live callbacks.
 
 - Several BPF op invocations didn't tell the framework which runqueue
   was already locked, so helper kfuncs that re-acquire the runqueue
   by CPU could deadlock on the held lock. Fixed at the affected
   callsites, including recursive parent-into-child dispatch.
 
 - The hardlockup notifier ran from NMI but eventually took a
   non-NMI-safe lock. Bounced through irq_work.
 
 - A handful of bugs in the new sub-scheduler hierarchy: helper
   kfuncs hard-coded the root instead of resolving the caller's
   scheduler; the enable error path tried to disable per-task state
   that had never been initialized, and leaked cpus_read_lock on the
   way out; a sysfs object was leaked on every load/unload; the
   dispatch fast-path used the root scheduler instead of the task's;
   and a couple of CONFIG #ifdef guards were misclassified.
 
 - Verifier-time hardening: BPF programs of unrelated struct_ops
   types (e.g. tcp_congestion_ops) could call sched_ext kfuncs - a
   semantic bug and, once sub-sched was enabled, a KASAN
   out-of-bounds read. Now rejected at load. Plus a few NULL and
   cross-task argument checks on sched_ext kfuncs, and a selftest
   covering the new deny.
 
 - rhashtable (Herbert): restored the insecure_elasticity toggle and
   bounced the deferred-resize kick through irq_work to break a
   lock-order cycle observable from raw-spinlock callers. sched_ext's
   scheduler-instance hash is the first user of both.
 
 - The bypass-mode load balancer used file-scope cpumasks; with
   multiple scheduler instances now possible, those raced. Moved
   per-instance, plus a follow-up to skip tasks whose recorded CPU is
   stale relative to the new owning runqueue.
 
 - Smaller fixes: a dispatch queue's first-task tracking misbehaved
   when a parked iterator cursor sat in the list; the runqueue's
   next-class wasn't promoted on local-queue enqueue, leaving an SCX
   task behind RT in edge cases; the reference qmap scheduler stopped
   erroring on legitimate cross-scheduler task-storage misses.
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Merge tag 'sched_ext-for-7.1-rc1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext

Pull sched_ext fixes from Tejun Heo:
 "The merge window pulled in the cgroup sub-scheduler infrastructure,
  and new AI reviews are accelerating bug reporting and fixing - hence
  the larger than usual fixes batch:

   - Use-after-frees during scheduler load/unload:
       - The disable path could free the BPF scheduler while deferred
         irq_work / kthread work was still in flight
       - cgroup setter callbacks read the active scheduler outside the
         rwsem that synchronizes against teardown
     Fix both, and reuse the disable drain in the enable error paths so
     the BPF JIT page can't be freed under live callbacks.

   - Several BPF op invocations didn't tell the framework which runqueue
     was already locked, so helper kfuncs that re-acquire the runqueue
     by CPU could deadlock on the held lock

     Fix the affected callsites, including recursive parent-into-child
     dispatch.

   - The hardlockup notifier ran from NMI but eventually took a
     non-NMI-safe lock. Bounce it through irq_work.

   - A handful of bugs in the new sub-scheduler hierarchy:
       - helper kfuncs hard-coded the root instead of resolving the
         caller's scheduler
       - the enable error path tried to disable per-task state that had
         never been initialized, and leaked cpus_read_lock on the way
         out
       - a sysfs object was leaked on every load/unload
       - the dispatch fast-path used the root scheduler instead of the
         task's
       - a couple of CONFIG #ifdef guards were misclassified

   - Verifier-time hardening: BPF programs of unrelated struct_ops types
     (e.g. tcp_congestion_ops) could call sched_ext kfuncs - a semantic
     bug and, once sub-sched was enabled, a KASAN out-of-bounds read.
     Now rejected at load. Plus a few NULL and cross-task argument
     checks on sched_ext kfuncs, and a selftest covering the new deny.

   - rhashtable (Herbert): restore the insecure_elasticity toggle and
     bounce the deferred-resize kick through irq_work to break a
     lock-order cycle observable from raw-spinlock callers. sched_ext's
     scheduler-instance hash is the first user of both.

   - The bypass-mode load balancer used file-scope cpumasks; with
     multiple scheduler instances now possible, those raced. Move to
     per-instance cpumasks, plus a follow-up to skip tasks whose
     recorded CPU is stale relative to the new owning runqueue.

   - Smaller fixes:
       - a dispatch queue's first-task tracking misbehaved when a parked
         iterator cursor sat in the list
       - the runqueue's next-class wasn't promoted on local-queue
         enqueue, leaving an SCX task behind RT in edge cases
       - the reference qmap scheduler stopped erroring on legitimate
         cross-scheduler task-storage misses"

* tag 'sched_ext-for-7.1-rc1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext: (26 commits)
  sched_ext: Fix scx_flush_disable_work() UAF race
  sched_ext: Call wakeup_preempt() in local_dsq_post_enq()
  sched_ext: Release cpus_read_lock on scx_link_sched() failure in root enable
  sched_ext: Reject NULL-sch callers in scx_bpf_task_set_slice/dsq_vtime
  sched_ext: Refuse cross-task select_cpu_from_kfunc calls
  sched_ext: Align cgroup #ifdef guards with SUB_SCHED vs GROUP_SCHED
  sched_ext: Make bypass LB cpumasks per-scheduler
  sched_ext: Pass held rq to SCX_CALL_OP() for core_sched_before
  sched_ext: Pass held rq to SCX_CALL_OP() for dump_cpu/dump_task
  sched_ext: Save and restore scx_locked_rq across SCX_CALL_OP
  sched_ext: Use dsq->first_task instead of list_empty() in dispatch_enqueue() FIFO-tail
  sched_ext: Resolve caller's scheduler in scx_bpf_destroy_dsq() / scx_bpf_dsq_nr_queued()
  sched_ext: Read scx_root under scx_cgroup_ops_rwsem in cgroup setters
  sched_ext: Don't disable tasks in scx_sub_enable_workfn() abort path
  sched_ext: Skip tasks with stale task_rq in bypass_lb_cpu()
  sched_ext: Guard scx_dsq_move() against NULL kit->dsq after failed iter_new
  sched_ext: Unregister sub_kset on scheduler disable
  sched_ext: Defer scx_hardlockup() out of NMI
  sched_ext: sync disable_irq_work in bpf_scx_unreg()
  sched_ext: Fix local_dsq_post_enq() to use task's scheduler in sub-sched
  ...
2026-04-28 16:26:11 -07:00
Martin Michaelis
7deba791ad io_uring/kbuf: support min length left for incremental buffers
Incrementally consumed buffer rings are generally fully consumed, but
it's quite possible that the application has a minimum size it needs to
meet to avoid truncation. Currently that minimum limit is 1 byte, but
this should be a setting that is the hands of the application. For
recvmsg multishot, a prime use case for incrementally consumed buffers,
the application may get spurious -EFAULT returned at the end of an
incrementally consumed buffer, as less space is available than the
headers need.

Grab a u32 field in struct io_uring_buf_reg, which the application can
use to inform the kernel of the minimum size that should be available
in an incrementally consumed buffer. If less than that is available,
the current buffer is fully processed and the next one will be picked.

Cc: stable@vger.kernel.org
Fixes: ae98dbf43d ("io_uring/kbuf: add support for incremental buffer consumption")
Link: https://github.com/axboe/liburing/issues/1433
Signed-off-by: Martin Michaelis <code@mgjm.de>
[axboe: write commit message, change io_buffer_list member name]
Reviewed-by: Gabriel Krisman Bertazi <krisman@suse.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2026-04-28 16:08:56 -06:00
Yury Norov
927011b65a drm/amdgpu: fix build for CONFIG_DRM_FBDEV_EMULATION=n
The merge-commit 02e778f123 ("Merge tag 'amd-drm-next-7.1-2026-03-12' of
https://gitlab.freedesktop.org/agd5f/linux into drm-next") removes the stub
for drm_fb_helper_gem_is_fb(), so the buld gets broken if DRM_FBDEV_EMULATION
is not set.

‘drm_fb_helper_gem_is_fb’; did you mean ‘drm_fb_helper_from_client’? [-Wimplicit-function-declaration]
 1777 |                 if (!drm_fb_helper_gem_is_fb(dev->fb_helper, fb->obj[0])) {
      |                      ^~~~~~~~~~~~~~~~~~~~~~~
      |                      drm_fb_helper_from_client

Restore it.

Fixes: 02e778f123 ("Merge tag 'amd-drm-next-7.1-2026-03-12' of https://gitlab.freedesktop.org/agd5f/linux into drm-next")
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Yury Norov <ynorov@nvidia.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit 7b81bc38e9)
2026-04-28 15:43:04 -04:00
Sheng Che Peng
5ec07d5204 tracepoint: Fix typo in tracepoint.h comment
Change "my" to "may" in the description of subsystem configurations.

Link: https://patch.msgid.link/20260422021819.1788091-1-synte4028@gmail.com
Signed-off-by: Sheng Che Peng <synte4028@gmail.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2026-04-28 14:28:29 -04:00
Kuniyuki Iwashima
b3b6babf47 ipmr: Free mr_table after RCU grace period.
With CONFIG_IP_MROUTE_MULTIPLE_TABLES=n, ipmr_fib_lookup()
does not check if net->ipv4.mrt is NULL.

Since default_device_exit_batch() is called after ->exit_rtnl(),
a device could receive IGMP packets and access net->ipv4.mrt
during/after ipmr_rules_exit_rtnl().

If ipmr_rules_exit_rtnl() had already cleared it and freed the
memory, the access would trigger null-ptr-deref or use-after-free.

Let's fix it by using RCU helper and free mrt after RCU grace
period.

In addition, check_net(net) is added to mroute_clean_tables()
and ipmr_cache_unresolved() to synchronise via mfc_unres_lock.
This prevents ipmr_cache_unresolved() from putting skb into
c->_c.mfc_un.unres.unresolved after mroute_clean_tables()
purges it.

For the same reason, timer_shutdown_sync() is moved after
mroute_clean_tables().

Since rhltable_destroy() holds mutex internally, rcu_work is
used, and it is placed as the first member because rcu_head
must be placed within <4K offset.  mr_table is alraedy 3864
bytes without rcu_work.

Note that IP6MR is not yet converted to ->exit_rtnl(), so this
change is not needed for now but will be.

Fixes: b22b018674 ("ipmr: Convert ipmr_net_exit_batch() to ->exit_rtnl().")
Signed-off-by: Kuniyuki Iwashima <kuniyu@google.com>
Link: https://patch.msgid.link/20260423053456.4097409-1-kuniyu@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-04-27 18:46:17 -07:00
Linus Torvalds
53b6156308 \n
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Merge tag 'fsnotify_for_v7.1-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs

Pull fsnotify fixes from Jan Kara:
 "Three fixes for fsnotify / fanotify"

* tag 'fsnotify_for_v7.1-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
  fsnotify: fix inode reference leak in fsnotify_recalc_mask()
  fanotify: Fix spelling mistake "enforecement" -> "enforcement"
  fanotify: fix false positive on permission events
2026-04-27 16:40:24 -07:00
Linus Torvalds
a7cc308da5 mailbox: updates for v7.1
- core: fix NULL message handling and add API to query TX queue slots
  - test: resolve concurrency bugs, dangling IRQs, and memory leaks
  - dt-bindings: qcom: add Eliza IPCC
  - mtk: fix address calculation and pointer handling bugs
  - cix: resolve SCMI suspend timeouts
  - misc memory allocation optimizations and cleanups
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Merge tag 'mailbox-v7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/jassibrar/mailbox

Pull mailbox updates from Jassi Brar:

 - core: fix NULL message handling and add API to query TX queue slots

 - test: resolve concurrency bugs, dangling IRQs, and memory leaks

 - dt-bindings: qcom: add Eliza IPCC

 - mtk: fix address calculation and pointer handling bugs

 - cix: resolve SCMI suspend timeouts

 - misc memory allocation optimizations and cleanups

* tag 'mailbox-v7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/jassibrar/mailbox:
  mailbox: mailbox-test: make data_ready a per-instance variable
  mailbox: mailbox-test: initialize struct earlier
  mailbox: mailbox-test: don't free the reused channel
  mailbox: mailbox-test: handle channel errors consistently
  mailbox: update kdoc for struct mbox_controller
  mailbox: add sanity check for channel array
  mailbox: mailbox-test: free channels on probe error
  mailbox: prefix new constants with MBOX_
  dt-bindings: mailbox: qcom-ipcc: Document the Eliza Inter-Processor Communication Controller
  mailbox: cix: Add IRQF_NO_SUSPEND to mailbox interrupt
  mailbox: Fix NULL message support in mbox_send_message()
  mailbox: remove superfluous internal header
  mailbox: correct kdoc title for mbox_bind_client
  mailbox: test: really ignore optional memory resources
  mailbox: exynos: drop superfluous mbox setting per channel
  mailbox: mtk-cmdq: Fix CURR and END addr for task insert case
  mailbox: mtk-vcp-mailbox: Fix the return value in mtk_vcp_mbox_xlate()
  mailbox: hi6220: kzalloc + kcalloc to kzalloc
  mailbox: rockchip: kzalloc + kcalloc to kzalloc
  mailbox: add API to query available TX queue slots
2026-04-27 15:21:18 -07:00
Daan De Meyer
0898a81762 cdrom, scsi: sr: propagate read-only status to block layer via set_disk_ro()
The cdrom core never calls set_disk_ro() for a registered device, so
BLKROGET on a CD-ROM device always returns 0 (writable), even when the
drive has no write capabilities and writes will inevitably fail. This
causes problems for userspace that relies on BLKROGET to determine
whether a block device is read-only. For example, systemd's loop device
setup uses BLKROGET to decide whether to create a loop device with
LO_FLAGS_READ_ONLY. Without the read-only flag, writes pass through the
loop device to the CD-ROM and fail with I/O errors. systemd-fsck
similarly checks BLKROGET to decide whether to run fsck in no-repair
mode (-n).

The write-capability bits in cdi->mask come from two different sources:
CDC_DVD_RAM and CDC_CD_RW are populated by the driver from the MODE
SENSE capabilities page (page 0x2A) before register_cdrom() is called,
while CDC_MRW_W and CDC_RAM require the MMC GET CONFIGURATION command
and were only probed by cdrom_open_write() at device open time. This
meant that any attempt to compute the writable state from the full
mask at probe time was incorrect, because the GET CONFIGURATION bits
were still unset (and cdi->mask is initialized such that capabilities
are assumed present).

Fix this by factoring the GET CONFIGURATION probing out of
cdrom_open_write() into a new exported helper,
cdrom_probe_write_features(), and having sr call it from sr_probe()
right after get_capabilities() has populated the MODE SENSE bits.
register_cdrom() then calls set_disk_ro() based on the full
write-capability mask (CDC_DVD_RAM | CDC_MRW_W | CDC_RAM | CDC_CD_RW)
so the block layer reflects the drive's actual write support. The
feature queries used (CDF_MRW and CDF_RWRT via GET CONFIGURATION with
RT=00) report drive-level capabilities that are persistent across
media, so a single probe before register_cdrom() is sufficient and the
redundant probe at open time is dropped.

With set_disk_ro() now accurate, the long-vestigial cd->writeable flag
in sr can go: get_capabilities() used to set cd->writeable based on
the same four mask bits, but because CDC_MRW_W and CDC_RAM default to
"capability present" in cdi->mask and aren't touched by MODE SENSE,
the condition that gated cd->writeable was always true, making it
unconditionally 1. Replace the corresponding gate in sr_init_command()
with get_disk_ro(cd->disk), which turns a previously no-op check into
a real one and also catches kernel-internal bio writers that bypass
blkdev_write_iter()'s bdev_read_only() check.

The sd driver (SCSI disks) does not have this problem because it
checks the MODE SENSE Write Protect bit and calls set_disk_ro()
accordingly. The sr driver cannot use the same approach because the
MMC specification does not define the WP bit in the MODE SENSE
device-specific parameter byte for CD-ROM devices.

Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Signed-off-by: Daan De Meyer <daan@amutable.com>
Reviewed-by: Phillip Potter <phil@philpotter.co.uk>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Phillip Potter <phil@philpotter.co.uk>
Link: https://patch.msgid.link/20260427210139.1400-2-phil@philpotter.co.uk
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2026-04-27 15:52:51 -06:00
Jens Axboe
aa03cfe9db nvme fixes for Linux 7.1
- Target data transfer size confiruation (Aurelien)
  - Enable P2P for RDMA (Shivaji Kant)
  - TCP target updates (Maurizio, Alistair, Chaitanya, Shivam Kumar)
  - TCP host updates (Alistair, Chaitanya)
  - Authentication updates (Alistair, Daniel, Chris Leech)
  - Multipath fixes (John Garry)
  - New quirks (Alan Cui, Tao Jiang)
  - Apple driver fix (Fedor Pchelkin)
  - PCI admin doorbell update fix (Keith)
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Merge tag 'nvme-7.1-2026-04-24' of git://git.infradead.org/nvme into block-7.1

Pull NVMe fixes from Keith:

"- Target data transfer size confiruation (Aurelien)
 - Enable P2P for RDMA (Shivaji Kant)
 - TCP target updates (Maurizio, Alistair, Chaitanya, Shivam Kumar)
 - TCP host updates (Alistair, Chaitanya)
 - Authentication updates (Alistair, Daniel, Chris Leech)
 - Multipath fixes (John Garry)
 - New quirks (Alan Cui, Tao Jiang)
 - Apple driver fix (Fedor Pchelkin)
 - PCI admin doorbell update fix (Keith)"

* tag 'nvme-7.1-2026-04-24' of git://git.infradead.org/nvme: (22 commits)
  nvme-auth: Hash DH shared secret to create session key
  nvme-pci: fix missed admin queue sq doorbell write
  nvme-auth: Include SC_C in RVAL controller hash
  nvme-tcp: teardown circular locking fixes
  nvmet-tcp: Don't clear tls_key when freeing sq
  Revert "nvmet-tcp: Don't free SQ on authentication success"
  nvme: skip trace completion for host path errors
  nvme-pci: add quirk for Memblaze Pblaze5 (0x1c5f:0x0555)
  nvme-multipath: put module reference when delayed removal work is canceled
  nvme: expose TLS mode
  nvme-apple: drop invalid put of admin queue reference count
  nvme-core: fix parameter name in comment
  nvmet: avoid recursive nvmet-wq flush in nvmet_ctrl_free
  nvme-multipath: drop head pointer check in nvme_mpath_clear_current_path()
  nvme: add quirk NVME_QUIRK_IGNORE_DEV_SUBNQN for 144d:a808 (Samsung PM981/983/970 EVO Plus )
  nvmet-tcp: fix race between ICReq handling and queue teardown
  nvmet-tcp: remove redundant calls to nvmet_tcp_fatal_error()
  nvmet-tcp: propagate nvmet_tcp_build_pdu_iovec() errors to its callers
  nvme: enable PCI P2PDMA support for RDMA transport
  nvmet: introduce new mdts configuration entry
  ...
2026-04-27 15:47:21 -06:00
Bartosz Golaszewski
ea216d3ae7 ACPI: bus: add missing forward declaration to acpi_bus.h
The header references struct notifier_block but neither includes
linux/notifier.h nor contains the relevant forward declaration.

Add the latter for correctness.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
[ rjw: Subject tweak ]
Link: https://patch.msgid.link/20260427112238.132419-1-bartosz.golaszewski@oss.qualcomm.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2026-04-27 22:02:24 +02:00
Tony Luck
1f60085383 ACPICA: Provide #defines for EINJV2 error types
EINJV2 defined new error types by moving the severity (correctable,
uncorrectable non-fatal, uncorrectable fatal) out of the "type".

ACPI 6.5 introduced EINJV2 and defined a vendor defined error type
using bit 31. This was dropped in ACPI 6.6.

Link: e82d2d2fd1
Signed-off-by: Tony Luck <tony.luck@intel.com>
Link: https://patch.msgid.link/20260421150216.11666-2-tony.luck@intel.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2026-04-27 21:42:30 +02:00
Miquel Raynal
5e25407b68 mtd: spinand: Add support for packed read data ODTR commands
Some devices stuff address bits in the double byte opcode (in place of
the repeated byte) in order to be able to increase the size of the
devices, without adding extra address bytes.

Create a flag to identify those devices. When the flag is set, use the
"packed" variant for the read data operation.

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2026-04-27 15:08:04 +02:00
Liam R. Howlett
77a50e9652 MAINTAINERS: update Liam's email address
Switching to private email address.  Update all contact information

Add an entry to mailmap at the same time.

Link: https://lore.kernel.org/20260422184310.2682901-1-liam@infradead.org
Signed-off-by: Liam R. Howlett <liam@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-04-27 05:54:25 -07:00
Lorenzo Stoakes
619eab23e1 mm/vma: do not try to unmap a VMA if mmap_prepare() invoked from mmap()
The mmap_prepare hook functionality includes the ability to invoke
mmap_prepare() from the mmap() hook of existing 'stacked' drivers, that is
ones which are capable of calling the mmap hooks of other drivers/file
systems (e.g.  overlayfs, shm).

As part of the mmap_prepare action functionality, we deal with errors by
unmapping the VMA should one arise.  This works in the usual mmap_prepare
case, as we invoke this action at the last moment, when the VMA is
established in the maple tree.

However, the mmap() hook passes a not-fully-established VMA pointer to the
caller (which is the motivation behind the mmap_prepare() work), which is
detached.

So attempting to unmap a VMA in this state will be problematic, with the
most obvious symptom being a warning in vma_mark_detached(), because the
VMA is already detached.

It's also unncessary - the mmap() handler will clean up the VMA on error.

So to fix this issue, this patch propagates whether or not an mmap action
is being completed via the compatibility layer or directly.

If the former, then we do not attempt VMA cleanup, if the latter, then we
do.

This patch also updates the userland VMA tests to reflect the change.

Link: https://lore.kernel.org/20260421102150.189982-1-ljs@kernel.org
Fixes: ac0a3fc9c0 ("mm: add ability to take further action in vm_area_desc")
Signed-off-by: Lorenzo Stoakes <ljs@kernel.org>
Reported-by: syzbot+db390288d141a1dccf96@syzkaller.appspotmail.com
Closes: https://lore.kernel.org/all/69e69734.050a0220.24bfd3.0027.GAE@google.com/
Cc: David Hildenbrand <david@kernel.org>
Cc: Jann Horn <jannh@google.com>
Cc: Liam Howlett <liam.howlett@oracle.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Pedro Falcato <pfalcato@suse.de>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-04-27 05:54:24 -07:00
Thomas Zimmermann
0fc8f6200d Merge drm/drm-fixes into drm-misc-fixes
Getting fixes and updates from v7.1-rc1.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
2026-04-27 10:26:49 +02:00
Linus Torvalds
1d9f1b5e43 Here are the accumulated fixes for 7.1-rc1 and a single structural worth of
mentioning separately: Rafael's commit converting tpm_crb from ACPI driver
 to a platform driver. Starting from this release cycle, the branch with TPM
 changes mirrored to next is 'for-next-tpm', and patches for keys have their
 own separate 'for-next-keys' branch.
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Merge tag 'for-next-tpm-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd

Pull tpm updates from Jarkko Sakkinen:
 "Here are the accumulated fixes for 7.1-rc1 and a single structural
  change worth mentioning separately: Rafael's commit converting tpm_crb
  from ACPI driver to a platform driver"

* tag 'for-next-tpm-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd:
  tpm: tpm_tis: stop transmit if retries are exhausted
  tpm: tpm_tis: add error logging for data transfer
  tpm: avoid -Wunused-but-set-variable
  tpm: Use kfree_sensitive() to free auth session in tpm_dev_release()
  tpm2-sessions: Fix missing tpm_buf_destroy() in tpm2_read_public()
  tpm: Fix auth session leak in tpm2_get_random() error path
  tpm: i2c: atmel: fix block comment formatting
  tpm_crb: Convert ACPI driver to a platform one
  tpm: Make tcpci_pm_ops variable static const
2026-04-25 16:20:52 -07:00
Linus Torvalds
f3e3dbcea1 block-7.1-20260424
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Merge tag 'block-7.1-20260424' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux

Pull block fixes from Jens Axboe:

 - Series for zloop, fixing a variety of issues

 - t10-pi code cleanup

 - Fix for a merge window regression with the bio memory allocation mask

 - Fix for a merge window regression in ublk, caused by an issue with
   the maple tree iteration code at teardown

 - ublk self tests additions

 - Zoned device pgmap fixes

 - Various little cleanups and fixes

* tag 'block-7.1-20260424' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux: (21 commits)
  Revert "floppy: fix reference leak on platform_device_register() failure"
  ublk: avoid unpinning pages under maple tree spinlock
  ublk: refactor common helper ublk_shmem_remove_ranges()
  ublk: fix maple tree lockdep warning in ublk_buf_cleanup
  selftests: ublk: add ublk auto integrity test
  selftests: ublk: enable test_integrity_02.sh on fio 3.42
  selftests: ublk: remove unused argument to _cleanup
  block: only restrict bio allocation gfp mask asked to block
  block/blk-throttle: Add WQ_PERCPU to alloc_workqueue users
  block: Add WQ_PERCPU to alloc_workqueue users
  block: relax pgmap check in bio_add_page for compatible zone device pages
  block: add pgmap check to biovec_phys_mergeable
  floppy: fix reference leak on platform_device_register() failure
  ublk: use unchecked copy helpers for bio page data
  t10-pi: reduce ref tag code duplication
  zloop: remove irq-safe locking
  zloop: factor out zloop_mark_{full,empty} helpers
  zloop: set RQF_QUIET when completing requests on deleted devices
  zloop: improve the unaligned write pointer warning
  zloop: use vfs_truncate
  ...
2026-04-24 15:06:55 -07:00
Linus Torvalds
b85900e91c NFS client updates for Linux 7.1
Highlights include:
 
 Bugfixes:
 - NFS: Fix handling of ENOSPC so that if we have to resend writes, they
   are written synchronously.
 - SUNRPC: RDMA transport fixes from Chuck
 - NFSv4.2: Several fixes for delegated timestamps
 - NFSv4: Failure to obtain a directory delegation should not cause
   stat() to fail.
 - NFSv4: Rename was failing to update timestamps when a directory
   delegation is held.
 - NFSv4: Ensure we check rsize/wsize after crossing a NFSv4 filesystem
   boundary.
 - NFSv4/pnfs: If the server is down, retry the layout returns on reboot
 - NFSv4/pnfs: Fallback to MDS could result in a short write being
   incorrectly logged.
 
 Cleanups:
 - NFS: use memcpy_and_pad in decode_fh
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Merge tag 'nfs-for-7.1-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs

Pull NFS client updates from Trond Myklebust:
 "Bugfixes:

   - Fix handling of ENOSPC so that if we have to resend writes, they
     are written synchronously

   - SUNRPC RDMA transport fixes from Chuck

   - Several fixes for delegated timestamps in NFSv4.2

   - Failure to obtain a directory delegation should not cause stat() to
     fail with NFSv4

   - Rename was failing to update timestamps when a directory delegation
     is held on NFSv4

   - Ensure we check rsize/wsize after crossing a NFSv4 filesystem
     boundary

   - NFSv4/pnfs:

      - If the server is down, retry the layout returns on reboot

      - Fallback to MDS could result in a short write being incorrectly
        logged

  Cleanups:

   - Use memcpy_and_pad in decode_fh"

* tag 'nfs-for-7.1-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: (21 commits)
  NFS: Fix RCU dereference of cl_xprt in nfs_compare_super_address
  NFS: remove redundant __private attribute from nfs_page_class
  NFSv4.2: fix CLONE/COPY attrs in presence of delegated attributes
  NFS: fix writeback in presence of errors
  nfs: use memcpy_and_pad in decode_fh
  NFSv4.1: Apply session size limits on clone path
  NFSv4: retry GETATTR if GET_DIR_DELEGATION failed
  NFS: fix RENAME attr in presence of directory delegations
  pnfs/flexfiles: validate ds_versions_cnt is non-zero
  NFS/blocklayout: print each device used for SCSI layouts
  xprtrdma: Post receive buffers after RPC completion
  xprtrdma: Scale receive batch size with credit window
  xprtrdma: Replace rpcrdma_mr_seg with xdr_buf cursor
  xprtrdma: Decouple frwr_wp_create from frwr_map
  xprtrdma: Close lost-wakeup race in xprt_rdma_alloc_slot
  xprtrdma: Avoid 250 ms delay on backlog wakeup
  xprtrdma: Close sendctx get/put race that can block a transport
  nfs: update inode ctime after removexattr operation
  nfs: fix utimensat() for atime with delegated timestamps
  NFS: improve "Server wrote zero bytes" error
  ...
2026-04-24 14:20:03 -07:00
Linus Torvalds
bdcb864c71 - 9p access flag fix (cannot change access flag since new mount API implem)
- some minor cleanup
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Merge tag '9p-for-7.1-rc1' of https://github.com/martinetd/linux

Pull 9p updates from Dominique Martinet:

 - 9p access flag fix (cannot change access flag since new mount API implem)

 - some minor cleanup

* tag '9p-for-7.1-rc1' of https://github.com/martinetd/linux:
  9p/trans_xen: replace simple_strto* with kstrtouint
  9p/trans_xen: make cleanup idempotent after dataring alloc errors
  9p: document missing enum values in kernel-doc comments
  9p: fix access mode flags being ORed instead of replaced
  9p: fix memory leak in v9fs_init_fs_context error path
2026-04-24 13:37:26 -07:00
Linus Torvalds
cb4eb6771c Char/Misc/IIO/and others driver updates for 7.1-rc1
Here is the char/misc/iio and other smaller driver subsystem updates for
 7.1-rc1.  Lots of stuff in here, all tiny, but relevant for the
 different drivers they touch.  Major points in here is:
   - the usual large set of new IIO drivers and updates for that
     subsystem (the large majority of this diffstat)
   - lots of comedi driver updates and bugfixes
   - coresight driver updates
   - interconnect driver updates and additions
   - mei driver updates
   - binder (both rust and C versions) updates and fixes
   - lots of other smaller driver subsystem updates and additions
 
 All of these have been in linux-next for a while with no reported
 issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char / misc / IIO / and others driver updates from Greg KH:
 "Here is the char/misc/iio and other smaller driver subsystem updates
  for 7.1-rc1. Lots of stuff in here, all tiny, but relevant for the
  different drivers they touch. Major points in here is:

   - the usual large set of new IIO drivers and updates for that
     subsystem (the large majority of this diffstat)

   - lots of comedi driver updates and bugfixes

   - coresight driver updates

   - interconnect driver updates and additions

   - mei driver updates

   - binder (both rust and C versions) updates and fixes

   - lots of other smaller driver subsystem updates and additions

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'char-misc-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (405 commits)
  coresight: tpdm: fix invalid MMIO access issue
  mei: me: add nova lake point H DID
  mei: lb: add late binding version 2
  mei: bus: add mei_cldev_uuid
  w1: ds2490: drop redundant device reference
  bus: mhi: host: pci_generic: Add Telit FE912C04 modem support
  mei: csc: wake device while reading firmware status
  mei: csc: support controller with separate PCI device
  mei: convert PCI error to common errno
  mei: trace: print return value of pci_cfg_read
  mei: me: move trace into firmware status read
  mei: fix idle print specifiers
  mei: me: use PCI_DEVICE_DATA macro
  sonypi: Convert ACPI driver to a platform one
  misc: apds990x: fix all kernel-doc warnings
  most: usb: Use kzalloc_objs for endpoint address array
  hpet: Convert ACPI driver to a platform one
  misc: vmw_vmci: Fix spelling mistakes in comments
  parport: Remove completed item from to-do list
  char: remove unnecessary module_init/exit functions
  ...
2026-04-24 13:23:50 -07:00
Linus Torvalds
b2680ba4a2 spi: Fixes for v7.1
This is quite a big set of fixes, almost all from Johan Hovold who is on
 an ongoing quest to clean up issues with probe and removal handling in
 drivers.  There isn't anything too concerning here especially with the
 deregistration stuff which will very rarely get run in production
 systems since this is all platform devices in the SoC on embedded
 hardware, but it's all real issues which should be fixed.  There's more
 in flight here.
 
 We also have a few other minor fixes, one from Felix Gu along the same
 lines as Johan's work and a couple of documentation things.
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Merge tag 'spi-fix-v7.1-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi

Pull spi fixes from Mark Brown:
 "This is quite a big set of fixes, almost all from Johan Hovold who is
  on an ongoing quest to clean up issues with probe and removal handling
  in drivers.

  There isn't anything too concerning here especially with the
  deregistration stuff which will very rarely get run in production
  systems since this is all platform devices in the SoC on embedded
  hardware, but it's all real issues which should be fixed. There's more
  in flight here.

  We also have a few other minor fixes, one from Felix Gu along the same
  lines as Johan's work and a couple of documentation things"

* tag 'spi-fix-v7.1-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (23 commits)
  spi: fix controller cleanup() documentation
  spi: fix resource leaks on device setup failure
  spi: axiado: clean up probe return value
  spi: axiado: rename probe error labels
  spi: axiado: fix runtime pm imbalance on probe failure
  spi: orion: clean up probe return value
  spi: orion: fix clock imbalance on registration failure
  spi: orion: fix runtime pm leak on unbind
  spi: imx: fix runtime pm leak on probe deferral
  spi: mpc52xx: fix use-after-free on registration failure
  spi: Fix the error description in the `ptp_sts_word_post` comment
  spi: topcliff-pch: fix use-after-free on unbind
  spi: topcliff-pch: fix controller deregistration
  spi: orion: fix controller deregistration
  spi: mxic: fix controller deregistration
  spi: mpc52xx: fix use-after-free on unbind
  spi: mpc52xx: fix controller deregistration
  spi: cadence-quadspi: fix controller deregistration
  spi: cadence: fix controller deregistration
  spi: mtk-snfi: fix memory leak in probe
  ...
2026-04-24 13:16:36 -07:00
Linus Torvalds
1fe93b2a2a sound fixes for 7.1-rc1
Here are the rest of small updates for 7.1-rc1.  All small fixes
 mostly for device-specific issues or regressions.
 
 * Core:
 - Fix a potential data race in fasync handling
 
 * USB-audio:
 - New device support: Line6 POD HD PRO, NexiGo N930W webcam
 - Fixes for Audio Advantage Micro II SPDIF switch and E-MU sample rates
 - Limit UAC2 rate parsing to prevent potential overflows
 
 * HD-Audio:
 - Device-specific quirks for HP, Acer, and Honor laptops
 - Fix for TAS2781 SPI device abnormal sound
 - Move Intel firmware loading into probe work to avoid stalling
 
 * ASoC:
 - New support for TI TAS5832
 - Fixes for SoundWire SDCA/DisCo boolean parsing
 - Driver-specific fixes for Intel SOF, ES8311, RT1320, and PXA2xx
 
 * Misc:
 - Fixes for resource leaks and data races in 6fire, caiaq, als4000,
   and pcmtest drivers
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Merge tag 'sound-fix-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "Here are the rest of small updates for 7.1-rc1. All small fixes mostly
  for device-specific issues or regressions.

  Core:
   - Fix a potential data race in fasync handling

  USB-audio:
   - New device support: Line6 POD HD PRO, NexiGo N930W webcam
   - Fixes for Audio Advantage Micro II SPDIF switch and E-MU sample
     rates
   - Limit UAC2 rate parsing to prevent potential overflows

  HD-Audio:
   - Device-specific quirks for HP, Acer, and Honor laptops
   - Fix for TAS2781 SPI device abnormal sound
   - Move Intel firmware loading into probe work to avoid stalling

  ASoC:
   - New support for TI TAS5832
   - Fixes for SoundWire SDCA/DisCo boolean parsing
   - Driver-specific fixes for Intel SOF, ES8311, RT1320, and PXA2xx

  Misc:
   - Fixes for resource leaks and data races in 6fire, caiaq, als4000,
     and pcmtest drivers"

* tag 'sound-fix-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (41 commits)
  Revert "ALSA: pcmtest: fix reference leak on failed device registration"
  ASoC: tas2781: Add tas5832 support
  ASoC: dt-bindings: ti,tas2781: Add TAS5832 support
  ALSA: usb-audio: Fix Audio Advantage Micro II SPDIF switch
  ALSA: usb-audio: Avoid false E-MU sample-rate notifications
  ASoC: sdw_utils: cs42l43: allow spk component names to be combined
  ASoC: qcom: x1e80100: limit speaker volumes
  ALSA: hda/realtek - Add mute LED support for HP Victus 15-fa2xxx
  ALSA: pcmtest: Fix resource leaks in module init error paths
  ALSA: usb-audio/line6: Add support for POD HD PRO
  ALSA: hda/realtek: Add LED fixup for HP EliteBook 6 G2a Laptops
  ASoC: SDCA: Fix reading of mipi-sdca-control-deferrable
  regmap: sdw-mbq: Allow defers on undeferrable controls
  Revert "ALSA: usb-audio: Add quirk for SmartlinkTechnology M01"
  ALSA: als4000: Fix capture trigger chip->mode race
  ALSA: core: Fix potential data race at fasync handling
  ALSA: hda/tas2781: Fix sound abnormal issue on some SPI device
  ALSA: hda/realtek: add quirk for Acer Nitro 16 AN16-41
  ALSA: caiaq: Fix control_put() result and cache rollback
  ALSA: pcmtest: fix reference leak on failed device registration
  ...
2026-04-24 11:49:20 -07:00
Linus Torvalds
cf950766e9 drm fixes for 7.1-rc1
atomic:
 - raise the vblank timeout to avoid it on virtual drivers
 - fix colorop duplication
 
 bridge:
 - stm_lvds: state check fix
 - dw-mipi-dsi: bridge reference leak fix
 
 panel:
 - visionx-rm69299: init fix
 
 dma-fence:
 - fix sparse warning
 
 dma-buf:
 - UAF fix
 
 panthor:
 - mapping fix
 
 arcgpu:
 - device_node reference leak fix
 
 nouveau:
 - memory leak in error path fix
 - overflow in reloc path for old hw fix
 
 hv:
 - Kconfig fix
 
 v3d:
 - infinite loop fix
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Merge tag 'drm-fixes-2026-04-24' of https://gitlab.freedesktop.org/drm/kernel

Pull more drm fixes from Dave Airlie:
 "These are the regular fixes that have built up over last couple of
  weeks, all pretty minor and spread all over.

  atomic:
   - raise the vblank timeout to avoid it on virtual drivers
   - fix colorop duplication

  bridge:
   - stm_lvds: state check fix
   - dw-mipi-dsi: bridge reference leak fix

  panel:
   - visionx-rm69299: init fix

  dma-fence:
   - fix sparse warning

  dma-buf:
   - UAF fix

  panthor:
   - mapping fix

  arcgpu:
   - device_node reference leak fix

  nouveau:
   - memory leak in error path fix
   - overflow in reloc path for old hw fix

  hv:
   - Kconfig fix

  v3d:
   - infinite loop fix"

* tag 'drm-fixes-2026-04-24' of https://gitlab.freedesktop.org/drm/kernel:
  drm/nouveau: fix u32 overflow in pushbuf reloc bounds check
  MAINTAINERS: split hisilicon maintenance and add Yongbang Shi for hibmc-drm matainers
  drm/v3d: Reject empty multisync extension to prevent infinite loop
  drm/panel: visionox-rm69299: Make use of prepare_prev_first
  drm/drm_atomic: duplicate colorop states if plane color pipeline in use
  drm/nouveau: fix nvkm_device leak on aperture removal failure
  hv: Select CONFIG_SYSFB only for CONFIG_HYPERV_VMBUS
  dma-fence: Silence sparse warning in dma_fence_describe
  drm/bridge: dw-mipi-dsi: Fix bridge leak when host attach fails
  drm/arcpgu: fix device node leak
  drm/panthor: Fix outdated function documentation
  drm/panthor: Extend VM locked region for remap case to be a superset
  dma-buf: fix UAF in dma_buf_put() tracepoint
  drm/bridge: stm_lvds: Do not fail atomic_check on disabled connector
  drm/atomic: Increase timeout in drm_atomic_helper_wait_for_vblanks()
2026-04-24 11:44:52 -07:00
Linus Torvalds
64edfa6506 Delete some obsolete networking code
Old code like amateur radio and NFC have long been a burden
 to core networking developers. syzbot loves to find bugs
 in BKL-era code, and noobs try to fix them.
 
 If we want to have a fighting chance of surviving the LLM-pocalypse
 this code needs to find a dedicated owner or get deleted.
 We've talked about these deletions multiple times in the past
 and every time someone wanted the code to stay. It is never
 very clear to me how many of those people actually use the code
 vs are just nostalgic to see it go. Amateur radio did have
 occasional users (or so I think) but most users switched
 to user space implementations since its all super slow stuff.
 Nobody stepped up to maintain the kernel code.
 
 We were lucky enough to find someone who wants to help with NFC
 so we're giving that a chance. Let's try to put the rest of
 this code behind us.
 
 Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-deletions' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

Pull networking deletions from Jakub Kicinski:
 "Delete some obsolete networking code

  Old code like amateur radio and NFC have long been a burden to core
  networking developers. syzbot loves to find bugs in BKL-era code, and
  noobs try to fix them.

  If we want to have a fighting chance of surviving the LLM-pocalypse
  this code needs to find a dedicated owner or get deleted. We've talked
  about these deletions multiple times in the past and every time
  someone wanted the code to stay. It is never very clear to me how many
  of those people actually use the code vs are just nostalgic to see it
  go. Amateur radio did have occasional users (or so I think) but most
  users switched to user space implementations since its all super slow
  stuff. Nobody stepped up to maintain the kernel code.

  We were lucky enough to find someone who wants to help with NFC so
  we're giving that a chance. Let's try to put the rest of this code
  behind us"

* tag 'net-deletions' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next:
  drivers: net: 8390: wd80x3: Remove this driver
  drivers: net: 8390: ultra: Remove this driver
  drivers: net: 8390: AX88190: Remove this driver
  drivers: net: fujitsu: fmvj18x: Remove this driver
  drivers: net: smsc: smc91c92: Remove this driver
  drivers: net: smsc: smc9194: Remove this driver
  drivers: net: amd: nmclan: Remove this driver
  drivers: net: amd: lance: Remove this driver
  drivers: net: 3com: 3c589: Remove this driver
  drivers: net: 3com: 3c574: Remove this driver
  drivers: net: 3com: 3c515: Remove this driver
  drivers: net: 3com: 3c509: Remove this driver
  net: packetengines: remove obsolete yellowfin driver and vendor dir
  net: packetengines: remove obsolete hamachi driver
  net: remove unused ATM protocols and legacy ATM device drivers
  net: remove ax25 and amateur radio (hamradio) subsystem
  net: remove ISDN subsystem and Bluetooth CMTP
  caif: remove CAIF NETWORK LAYER
2026-04-24 09:41:58 -07:00
Dave Airlie
56d0a0b38f This week in drm-misc-fixes, we have:
- A patch to raise the vblank timeout to avoid it on virtual drivers
 - a state check fix for stm_lvds
 - a use-after-free fix for dma-buf
 - a mapping fix for panthor
 - a device_node reference leak fix for arcgpu
 - a bridge reference leak fix for dw-mipi-dsi
 - a sparse warning fix for dma-fence
 - a kconfig fix for hv
 - a memory leak fix for nouveau
 - a fix to duplicate colorop when duplicating states
 - a panel initialisation order fix for visionox-rm69299
 - a fix to prevent an infinite loop for v3d
 - an overflow fix for nouveau
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Merge tag 'drm-misc-fixes-2026-04-23' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-fixes

This week in drm-misc-fixes, we have:
- A patch to raise the vblank timeout to avoid it on virtual drivers
- a state check fix for stm_lvds
- a use-after-free fix for dma-buf
- a mapping fix for panthor
- a device_node reference leak fix for arcgpu
- a bridge reference leak fix for dw-mipi-dsi
- a sparse warning fix for dma-fence
- a kconfig fix for hv
- a memory leak fix for nouveau
- a fix to duplicate colorop when duplicating states
- a panel initialisation order fix for visionox-rm69299
- a fix to prevent an infinite loop for v3d
- an overflow fix for nouveau

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Maxime Ripard <mripard@redhat.com>
Link: https://patch.msgid.link/20260423-realistic-eager-reindeer-4dacf7@houat
2026-04-24 13:56:54 +10:00
Linus Torvalds
dd6c438c3e vfs-7.1-rc1.fixes
Please consider pulling these changes from the signed vfs-7.1-rc1.fixes tag.
 
 Thanks!
 Christian
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Merge tag 'vfs-7.1-rc1.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs

Pull vfs fixes from Christian Brauner:

 - eventpoll: fix ep_remove() UAF and follow-up cleanup

 - fs: aio: set VMA_DONTCOPY_BIT in mmap to fix NULL-pointer-dereference
   error

 - writeback: Fix use after free in inode_switch_wbs_work_fn()

 - fuse: reject oversized dirents in page cache

 - fs: aio: reject partial mremap to avoid Null-pointer-dereference
   error

 - nstree: fix func. parameter kernel-doc warnings

 - fs: Handle multiply claimed blocks more gracefully with mmb

* tag 'vfs-7.1-rc1.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
  eventpoll: drop vestigial epi->dying flag
  eventpoll: drop dead bool return from ep_remove_epi()
  eventpoll: refresh eventpoll_release() fast-path comment
  eventpoll: move f_lock acquisition into ep_remove_file()
  eventpoll: fix ep_remove struct eventpoll / struct file UAF
  eventpoll: move epi_fget() up
  eventpoll: rename ep_remove_safe() back to ep_remove()
  eventpoll: drop vestigial __ prefix from ep_remove_{file,epi}()
  eventpoll: kill __ep_remove()
  eventpoll: split __ep_remove()
  eventpoll: use hlist_is_singular_node() in __ep_remove()
  fs: Handle multiply claimed blocks more gracefully with mmb
  nstree: fix func. parameter kernel-doc warnings
  fs: aio: reject partial mremap to avoid Null-pointer-dereference error
  fuse: reject oversized dirents in page cache
  writeback: Fix use after free in inode_switch_wbs_work_fn()
  fs: aio: set VMA_DONTCOPY_BIT in mmap to fix NULL-pointer-dereference error
2026-04-23 17:08:04 -07:00
Linus Torvalds
e728258deb Including fixes from Netfilter.
Steady stream of fixes. Last two weeks feel comparable to the two
 weeks before the merge window. Lots of AI-aided bug discovery.
 A newer big source is Sashiko/Gemini (Roman Gushchin's system),
 which points out issues in existing code during patch review
 (maybe 25% of fixes here likely originating from Sashiko).
 Nice thing is these are often fixed by the respective maintainers,
 not drive-bys.
 
 Current release - new code bugs:
 
  - kconfig: MDIO_PIC64HPSC should depend on ARCH_MICROCHIP
 
 Previous releases - regressions:
 
  - add async ndo_set_rx_mode and switch drivers which we promised
    to be called under the per-netdev mutex to it
 
  - dsa: remove duplicate netdev_lock_ops() for conduit ethtool ops
 
  - hv_sock: report EOF instead of -EIO for FIN
 
  - vsock/virtio: fix MSG_PEEK calculation on bytes to copy
 
 Previous releases - always broken:
 
  - ipv6: fix possible UAF in icmpv6_rcv()
 
  - icmp: validate reply type before using icmp_pointers
 
  - af_unix: drop all SCM attributes for SOCKMAP
 
  - netfilter: fix a number of bugs in the osf (OS fingerprinting)
 
  - eth: intel: fix timestamp interrupt configuration for E825C
 
 Misc:
 
  - bunch of data-race annotations
 
 Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Pull  networking fixes from Jakub Kicinski:
 "Including fixes from Netfilter.

  Steady stream of fixes. Last two weeks feel comparable to the two
  weeks before the merge window. Lots of AI-aided bug discovery. A newer
  big source is Sashiko/Gemini (Roman Gushchin's system), which points
  out issues in existing code during patch review (maybe 25% of fixes
  here likely originating from Sashiko). Nice thing is these are often
  fixed by the respective maintainers, not drive-bys.

  Current release - new code bugs:

   - kconfig: MDIO_PIC64HPSC should depend on ARCH_MICROCHIP

  Previous releases - regressions:

   - add async ndo_set_rx_mode and switch drivers which we promised to
     be called under the per-netdev mutex to it

   - dsa: remove duplicate netdev_lock_ops() for conduit ethtool ops

   - hv_sock: report EOF instead of -EIO for FIN

   - vsock/virtio: fix MSG_PEEK calculation on bytes to copy

  Previous releases - always broken:

   - ipv6: fix possible UAF in icmpv6_rcv()

   - icmp: validate reply type before using icmp_pointers

   - af_unix: drop all SCM attributes for SOCKMAP

   - netfilter: fix a number of bugs in the osf (OS fingerprinting)

   - eth: intel: fix timestamp interrupt configuration for E825C

  Misc:

   - bunch of data-race annotations"

* tag 'net-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (148 commits)
  rxrpc: Fix error handling in rxgk_extract_token()
  rxrpc: Fix re-decryption of RESPONSE packets
  rxrpc: Fix rxrpc_input_call_event() to only unshare DATA packets
  rxrpc: Fix missing validation of ticket length in non-XDR key preparsing
  rxgk: Fix potential integer overflow in length check
  rxrpc: Fix conn-level packet handling to unshare RESPONSE packets
  rxrpc: Fix potential UAF after skb_unshare() failure
  rxrpc: Fix rxkad crypto unalignment handling
  rxrpc: Fix memory leaks in rxkad_verify_response()
  net: rds: fix MR cleanup on copy error
  m68k: mvme147: Make me the maintainer
  net: txgbe: fix firmware version check
  selftests/bpf: check epoll readiness during reuseport migration
  tcp: call sk_data_ready() after listener migration
  vhost_net: fix sleeping with preempt-disabled in vhost_net_busy_poll()
  ipv6: Cap TLV scan in ip6_tnl_parse_tlv_enc_lim
  tipc: fix double-free in tipc_buf_append()
  llc: Return -EINPROGRESS from llc_ui_connect()
  ipv4: icmp: validate reply type before using icmp_pointers
  selftests/net: packetdrill: cover RFC 5961 5.2 challenge ACK on both edges
  ...
2026-04-23 16:50:42 -07:00
Andrew Lunn
15d07f9ef4 drivers: net: 8390: wd80x3: Remove this driver
The wd80x3 was written by Donald Becker 1993 to 1994. It is an ISA
device, so unlikely to be used with modern kernels.

Acked-by: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/20260422-v7-0-0-net-next-driver-removal-v1-v2-15-08a5b59784d5@lunn.ch
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-04-23 15:57:10 -07:00
Andrew Lunn
b0b807aa78 drivers: net: 8390: ultra: Remove this driver
The ultra was written by Donald Becker 1993 to 1998. It is an ISA
device, so unlikely to be used with modern kernels.

Acked-by: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/20260422-v7-0-0-net-next-driver-removal-v1-v2-14-08a5b59784d5@lunn.ch
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-04-23 15:57:10 -07:00
Andrew Lunn
9fdf9f61fa drivers: net: smsc: smc9194: Remove this driver
The smc9194 was written by Erik Stahlman in 1996. It is an ISA device,
so unlikely to be used with modern kernels.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/20260422-v7-0-0-net-next-driver-removal-v1-v2-7-08a5b59784d5@lunn.ch
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-04-23 15:56:49 -07:00
Andrew Lunn
2fbd04dc74 drivers: net: amd: lance: Remove this driver
The lance was written by Donald Becker between 1993-1998. It is an ISA
device, so unlikely to be used with modern kernels.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/20260422-v7-0-0-net-next-driver-removal-v1-v2-5-08a5b59784d5@lunn.ch
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-04-23 15:56:49 -07:00
Andrew Lunn
082b2e07cc drivers: net: 3com: 3c515: Remove this driver
The 3c515 was written by Donald Becker between 1997-1998. It is an ISA
device, so unlikely to be used with modern kernels.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/20260422-v7-0-0-net-next-driver-removal-v1-v2-2-08a5b59784d5@lunn.ch
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-04-23 15:56:49 -07:00
Christian Brauner
33e92e9ecf
eventpoll: refresh eventpoll_release() fast-path comment
The old comment justified the lockless READ_ONCE(file->f_ep) check
with "False positives simply cannot happen because the file is on
the way to be removed and nobody ( but eventpoll ) has still a
reference to this file." That reasoning was the root of the UAF
fixed in "eventpoll: fix ep_remove struct eventpoll / struct file
UAF": __ep_remove() could clear f_ep while another close raced
past the fast path and freed the watched eventpoll / recycled the
struct file slot.

With ep_remove() now pinning @file via epi_fget() across the f_ep
clear and hlist_del_rcu(), the invariant is re-established for the
right reason: anyone who might clear f_ep holds @file alive for
the duration, so a NULL observation really does mean no
concurrent eventpoll path has work left on this file. Refresh the
comment accordingly so the next reader doesn't inherit the broken
model.

Link: https://patch.msgid.link/20260423-work-epoll-uaf-v1-8-2470f9eec0f5@kernel.org
Signed-off-by: Christian Brauner (Amutable) <brauner@kernel.org>
2026-04-24 00:36:50 +02:00
Randy Dunlap
43eb354ecb
nstree: fix func. parameter kernel-doc warnings
Use the correct parameter name ("__ns") for function parameter kernel-doc
to avoid 3 warnings:

Warning: include/linux/nstree.h:68 function parameter '__ns' not described in 'ns_tree_add_raw'
Warning: include/linux/nstree.h:77 function parameter '__ns' not described in 'ns_tree_add'
Warning: include/linux/nstree.h:88 function parameter '__ns' not described in 'ns_tree_remove'

Fixes: 885fc8ac0a ("nstree: make iterator generic")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Link: https://patch.msgid.link/20260416215429.948898-1-rdunlap@infradead.org
Signed-off-by: Christian Brauner <brauner@kernel.org>
2026-04-24 00:34:59 +02:00
David Howells
0422e7a488 rxrpc: Fix re-decryption of RESPONSE packets
If a RESPONSE packet gets a temporary failure during processing, it may end
up in a partially decrypted state - and then get requeued for a retry.

Fix this by just discarding the packet; we will send another CHALLENGE
packet and thereby elicit a further response.  Similarly, discard an
incoming CHALLENGE packet if we get an error whilst generating a RESPONSE;
the server will send another CHALLENGE.

Fixes: 17926a7932 ("[AF_RXRPC]: Provide secure RxRPC sockets for use by userspace and kernel both")
Closes: https://sashiko.dev/#/patchset/20260422161438.2593376-4-dhowells@redhat.com
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Marc Dionne <marc.dionne@auristor.com>
cc: Jeffrey Altman <jaltman@auristor.com>
cc: Simon Horman <horms@kernel.org>
cc: linux-afs@lists.infradead.org
cc: stable@kernel.org
Link: https://patch.msgid.link/20260423200909.3049438-3-dhowells@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-04-23 14:29:15 -07:00
David Howells
1f2740150f rxrpc: Fix potential UAF after skb_unshare() failure
If skb_unshare() fails to unshare a packet due to allocation failure in
rxrpc_input_packet(), the skb pointer in the parent (rxrpc_io_thread())
will be NULL'd out.  This will likely cause the call to
trace_rxrpc_rx_done() to oops.

Fix this by moving the unsharing down to where rxrpc_input_call_event()
calls rxrpc_input_call_packet().  There are a number of places prior to
that where we ignore DATA packets for a variety of reasons (such as the
call already being complete) for which an unshare is then avoided.

And with that, rxrpc_input_packet() doesn't need to take a pointer to the
pointer to the packet, so change that to just a pointer.

Fixes: 2d1faf7a0c ("rxrpc: Simplify skbuff accounting in receive path")
Closes: https://sashiko.dev/#/patchset/20260408121252.2249051-1-dhowells%40redhat.com
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Marc Dionne <marc.dionne@auristor.com>
cc: Jeffrey Altman <jaltman@auristor.com>
cc: Simon Horman <horms@kernel.org>
cc: linux-afs@lists.infradead.org
cc: stable@kernel.org
Link: https://patch.msgid.link/20260422161438.2593376-4-dhowells@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-04-23 12:40:52 -07:00