Commit Graph

1310093 Commits

Author SHA1 Message Date
Linus Torvalds
dbafeddb95 linux_kselftest-fixes-6.12-rc4
kselftest fixes for Linux 6.12-rc4
 
 -- fixes test makefile to install tests directory without which
    the test fails with errors.
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Merge tag 'linux_kselftest-fixes-6.12-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest

Pull kselftest fix from Shuah Khan:

 - fix test makefile to install tests directory without which the test
   fails with errors

* tag 'linux_kselftest-fixes-6.12-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
  selftest: hid: add the missing tests directory
2024-10-18 16:11:17 -07:00
Nikita Travkin
2de01e0e57 Input: zinitix - don't fail if linux,keycodes prop is absent
When initially adding the touchkey support, a mistake was made in the
property parsing code. The possible negative errno from
device_property_count_u32() was never checked, which was an oversight
left from converting to it from the of_property as part of the review
fixes.

Re-add the correct handling of the absent property, in which case zero
touchkeys should be assumed, which would disable the feature.

Reported-by: Jakob Hauser <jahau@rocketmail.com>
Tested-by: Jakob Hauser <jahau@rocketmail.com>
Fixes: 075d9b22c8 ("Input: zinitix - add touchkey support")
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Nikita Travkin <nikita@trvn.ru>
Tested-by: Yassine Oudjana <y.oudjana@protonmail.com>
Link: https://lore.kernel.org/r/20241004-zinitix-no-keycodes-v2-1-876dc9fea4b6@trvn.ru
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2024-10-18 16:03:04 -07:00
Linus Torvalds
f8eacd8ad7 block-6.12-20241018
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Merge tag 'block-6.12-20241018' of git://git.kernel.dk/linux

Pull block fixes from Jens Axboe:

 - NVMe pull request via Keith:
     - Fix target passthrough identifier (Nilay)
     - Fix tcp locking (Hannes)
     - Replace list with sbitmap for tracking RDMA rsp tags (Guixen)
     - Remove unnecessary fallthrough statements (Tokunori)
     - Remove ready-without-media support (Greg)
     - Fix multipath partition scan deadlock (Keith)
     - Fix concurrent PCI reset and remove queue mapping (Maurizio)
     - Fabrics shutdown fixes (Nilay)

 - Fix for a kerneldoc warning (Keith)

 - Fix a race with blk-rq-qos and wakeups (Omar)

 - Cleanup of checking for always-set tag_set (SurajSonawane2415)

 - Fix for a crash with CPU hotplug notifiers (Ming)

 - Don't allow zero-copy ublk on unprivileged device (Ming)

 - Use array_index_nospec() for CDROM (Josh)

 - Remove dead code in drbd (David)

 - Tweaks to elevator loading (Breno)

* tag 'block-6.12-20241018' of git://git.kernel.dk/linux:
  cdrom: Avoid barrier_nospec() in cdrom_ioctl_media_changed()
  nvme: use helper nvme_ctrl_state in nvme_keep_alive_finish function
  nvme: make keep-alive synchronous operation
  nvme-loop: flush off pending I/O while shutting down loop controller
  nvme-pci: fix race condition between reset and nvme_dev_disable()
  ublk: don't allow user copy for unprivileged device
  blk-rq-qos: fix crash on rq_qos_wait vs. rq_qos_wake_function race
  nvme-multipath: defer partition scanning
  blk-mq: setup queue ->tag_set before initializing hctx
  elevator: Remove argument from elevator_find_get
  elevator: do not request_module if elevator exists
  drbd: Remove unused conn_lowest_minor
  nvme: disable CC.CRIME (NVME_CC_CRIME)
  nvme: delete unnecessary fallthru comment
  nvmet-rdma: use sbitmap to replace rsp free list
  block: Fix elevator_get_default() checking for NULL q->tag_set
  nvme: tcp: avoid race between queue_lock lock and destroy
  nvmet-passthru: clear EUID/NGUID/UUID while using loop target
  block: fix blk_rq_map_integrity_sg kernel-doc
2024-10-18 15:53:00 -07:00
Linus Torvalds
a041f47898 io_uring-6.12-20241018
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Merge tag 'io_uring-6.12-20241018' of git://git.kernel.dk/linux

Pull io_uring fixes from Jens Axboe:

 - Fix a regression this merge window where cloning of registered
   buffers didn't take into account the dummy_ubuf

 - Fix a race with reading how many SQRING entries are available,
   causing userspace to need to loop around io_uring_sqring_wait()
   rather than being able to rely on SQEs being available when it
   returned

 - Ensure that the SQPOLL thread is TASK_RUNNING before running
   task_work off the cancelation exit path

* tag 'io_uring-6.12-20241018' of git://git.kernel.dk/linux:
  io_uring/sqpoll: ensure task state is TASK_RUNNING when running task_work
  io_uring/rsrc: ignore dummy_ubuf for buffer cloning
  io_uring/sqpoll: close race on waiting for sqring entries
2024-10-18 15:38:37 -07:00
John Edwards
22a18935d7 Input: xpad - add support for MSI Claw A1M
Add MSI Claw A1M controller to xpad_device match table when in xinput mode.
Add MSI VID as XPAD_XBOX360_VENDOR.

Signed-off-by: John Edwards <uejji@uejji.net>
Reviewed-by: Derek J. Clark <derekjohn.clark@gmail.com>
Reviewed-by: Christopher Snowhill <kode54@gmail.com>
Link: https://lore.kernel.org/r/20241010232020.3292284-4-uejji@uejji.net
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2024-10-18 14:34:57 -07:00
Fan Wu
917a15c37d MAINTAINERS: update IPE tree url and Fan Wu's email
Update Integrity Policy Enforcement (IPE) LSM tree url and
maintainer's email to the newly issued kernel.org tree/email.

Signed-off-by: Fan Wu <wufan@kernel.org>
2024-10-18 12:15:37 -07:00
Luca Boccassi
f40998a8e6 ipe: fallback to platform keyring also if key in trusted keyring is rejected
If enabled, we fallback to the platform keyring if the trusted keyring
doesn't have the key used to sign the ipe policy. But if pkcs7_verify()
rejects the key for other reasons, such as usage restrictions, we do not
fallback. Do so, following the same change in dm-verity.

Signed-off-by: Luca Boccassi <bluca@debian.org>
Suggested-by: Serge Hallyn <serge@hallyn.com>
[FW: fixed some line length issues and a typo in the commit message]
Signed-off-by: Fan Wu <wufan@kernel.org>
2024-10-18 12:14:53 -07:00
Linus Torvalds
b04ae0f451 two fixes for stable, and two small cleanup fixes
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Merge tag 'v6.12-rc3-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6

Pull smb client fixes from Steve French:

 - Fix possible double free setting xattrs

 - Fix slab out of bounds with large ioctl payload

 - Remove three unused functions, and an unused variable that could be
   confusing

* tag 'v6.12-rc3-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6:
  cifs: Remove unused functions
  smb/client: Fix logically dead code
  smb: client: fix OOBs when building SMB2_IOCTL request
  smb: client: fix possible double free in smb2_set_ea()
2024-10-18 11:37:12 -07:00
Linus Torvalds
568570fdf2 XFS Bug fixes for 6.12-rc4
* Fix integer overflow in xrep_bmap
 * Fix stale dealloc punching for COW IO
 
 Signed-off-by: Carlos Maiolino <cem@kernel.org>
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Merge tag 'xfs-6.12-fixes-4' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux

Pull xfs fixes from Carlos Maiolino:

 - Fix integer overflow in xrep_bmap

 - Fix stale dealloc punching for COW IO

* tag 'xfs-6.12-fixes-4' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
  xfs: punch delalloc extents from the COW fork for COW writes
  xfs: set IOMAP_F_SHARED for all COW fork allocations
  xfs: share more code in xfs_buffered_write_iomap_begin
  xfs: support the COW fork in xfs_bmap_punch_delalloc_range
  xfs: IOMAP_ZERO and IOMAP_UNSHARE already hold invalidate_lock
  xfs: take XFS_MMAPLOCK_EXCL xfs_file_write_zero_eof
  xfs: factor out a xfs_file_write_zero_eof helper
  iomap: move locking out of iomap_write_delalloc_release
  iomap: remove iomap_file_buffered_write_punch_delalloc
  iomap: factor out a iomap_last_written_block helper
  xfs: fix integer overflow in xrep_bmap
2024-10-18 11:28:39 -07:00
Linus Torvalds
5e9ab267be Power management updates for 6.12-rc4
- Enable ACPI CPPC in amd_pstate_register_driver() after disabling it
    in amd_pstate_unregister_driver() when switching driver operation
    modes (Dhananjay Ugwekar).
 
  - Make amd-pstate use nominal performance as the maximum performance
    level when boost is disabled (Mario Limonciello).
 
  - Add ArrowLake-H to the list of processors where PL4 is supported
    in the MSR part of the intel_rapl power capping driver (Srinivas
    Pandruvada).
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Merge tag 'pm-6.12-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management fixes from Rafael Wysocki:
 "These fix two issues in the amd-pstate cpufreq driver and update the
  intel_rapl power capping driver with a new processor ID.

  Specifics:

   - Enable ACPI CPPC in amd_pstate_register_driver() after disabling it
     in amd_pstate_unregister_driver() when switching driver operation
     modes (Dhananjay Ugwekar)

   - Make amd-pstate use nominal performance as the maximum performance
     level when boost is disabled (Mario Limonciello)

   - Add ArrowLake-H to the list of processors where PL4 is supported in
     the MSR part of the intel_rapl power capping driver (Srinivas
     Pandruvada)"

* tag 'pm-6.12-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  powercap: intel_rapl_msr: Add PL4 support for ArrowLake-H
  cpufreq/amd-pstate: Use nominal perf for limits when boost is disabled
  cpufreq/amd-pstate: Fix amd_pstate mode switch on shared memory systems
2024-10-18 11:16:01 -07:00
Linus Torvalds
3b3a0ef6ae hwmon fixes for v6.12-rc4
Fix auto-detect regression in jc42 driver.
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Merge tag 'hwmon-for-v6.12-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging

Pull hwmon fix from Guenter Roeck:
 "Fix auto-detect regression in jc42 driver"

* tag 'hwmon-for-v6.12-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
  [PATCH} hwmon: (jc42) Properly detect TSE2004-compliant devices again
2024-10-18 11:13:53 -07:00
Linus Torvalds
5d97dde4d5 drm fixes for 6.12-rc4
msm:
 - Display:
 - move CRTC resource assignment to atomic_check otherwise to make
   consecutive calls to atomic_check() consistent
 - fix rounding / sign-extension issues with pclk calculation in
   case of DSC
 - cleanups to drop incorrect null checks in dpu snapshots
 - fix to use kvzalloc in dpu snapshot to avoid allocation issues
   in heavily loaded system cases
 - Fix to not program merge_3d block if dual LM is not being used
 - Fix to not flush merge_3d block if its not enabled otherwise
   this leads to false timeouts
 - GPU:
 - a7xx: add a fence wait before SMMU table update
 
 xe:
 - New workaround to Xe2 (Aradhya)
 - Fix unbalanced rpm put (Matthew Auld)
 - Remove fragile lock optimization (Matthew Brost)
 - Fix job release, delegating it to the drm scheduler (Matthew Brost)
 - Fix timestamp bit width for Xe2 (Lucas)
 - Fix external BO's dma-resv usag (Matthew Brost)
 - Fix returning success for timeout in wait_token (Nirmoy)
 - Initialize fence to avoid it being detected as signaled (Matthew Auld)
 - Improve cache flush for BMG (Matthew Auld)
 - Don't allow hflip for tile4 framebuffer on Xe2 (Juha-Pekka)
 
 amdgpu:
 - SR-IOV fix
 - CS chunk handling fix
 - MES fixes
 - SMU13 fixes
 
 amdkfd:
 - VRAM usage reporting fix
 
 radeon:
 - Fix possible_clones handling
 
 i915:
 - Two DP bandwidth related MST fixes
 
 ast:
 - Clear EDID on unplugged connectors
 
 host1x:
 - Fix boot on Tegra186
 - Set DMA parameters
 
 mgag200:
 - Revert VBLANK support
 
 panel:
 - himax-hx83192: Adjust power and gamma
 
 qaic:
 - Sgtable loop fixes
 
 vmwgfx:
 - Limit display layout allocatino size
 - Handle allocation errors in connector checks
 - Clean up KMS code for 2d-only setup
 - Report surface-check errors correctly
 - Remove NULL test around kvfree()
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Merge tag 'drm-fixes-2024-10-18' of https://gitlab.freedesktop.org/drm/kernel

Pull drm fixes from Dave Airlie:
 "Weekly fixes, msm and xe are the two main ones, with a bunch of
  scattered fixes including a largish revert in mgag200, then amdgpu,
  vmwgfx and scattering of other minor ones.

  All seems pretty regular.

  msm:
   - Display:
      - move CRTC resource assignment to atomic_check otherwise to make
        consecutive calls to atomic_check() consistent
      - fix rounding / sign-extension issues with pclk calculation in
        case of DSC
      - cleanups to drop incorrect null checks in dpu snapshots
      - fix to use kvzalloc in dpu snapshot to avoid allocation issues
        in heavily loaded system cases
      - Fix to not program merge_3d block if dual LM is not being used
      - Fix to not flush merge_3d block if its not enabled otherwise
        this leads to false timeouts
   - GPU:
      - a7xx: add a fence wait before SMMU table update

  xe:
   - New workaround to Xe2 (Aradhya)
   - Fix unbalanced rpm put (Matthew Auld)
   - Remove fragile lock optimization (Matthew Brost)
   - Fix job release, delegating it to the drm scheduler (Matthew Brost)
   - Fix timestamp bit width for Xe2 (Lucas)
   - Fix external BO's dma-resv usag (Matthew Brost)
   - Fix returning success for timeout in wait_token (Nirmoy)
   - Initialize fence to avoid it being detected as signaled (Matthew
     Auld)
   - Improve cache flush for BMG (Matthew Auld)
   - Don't allow hflip for tile4 framebuffer on Xe2 (Juha-Pekka)

  amdgpu:
   - SR-IOV fix
   - CS chunk handling fix
   - MES fixes
   - SMU13 fixes

  amdkfd:
   - VRAM usage reporting fix

  radeon:
   - Fix possible_clones handling

  i915:
   - Two DP bandwidth related MST fixes

  ast:
   - Clear EDID on unplugged connectors

  host1x:
   - Fix boot on Tegra186
   - Set DMA parameters

  mgag200:
   - Revert VBLANK support

  panel:
   - himax-hx83192: Adjust power and gamma

  qaic:
   - Sgtable loop fixes

  vmwgfx:
   - Limit display layout allocatino size
   - Handle allocation errors in connector checks
   - Clean up KMS code for 2d-only setup
   - Report surface-check errors correctly
   - Remove NULL test around kvfree()"

* tag 'drm-fixes-2024-10-18' of https://gitlab.freedesktop.org/drm/kernel: (45 commits)
  drm/ast: vga: Clear EDID if no display is connected
  drm/ast: sil164: Clear EDID if no display is connected
  Revert "drm/mgag200: Add vblank support"
  drm/amdgpu/swsmu: default to fullscreen 3D profile for dGPUs
  drm/i915/display: Don't allow tile4 framebuffer to do hflip on display20 or greater
  drm/xe/bmg: improve cache flushing behaviour
  drm/xe/xe_sync: initialise ufence.signalled
  drm/xe/ufence: ufence can be signaled right after wait_woken
  drm/xe: Use bookkeep slots for external BO's in exec IOCTL
  drm/xe/query: Increase timestamp width
  drm/xe: Don't free job in TDR
  drm/xe: Take job list lock in xe_sched_add_pending_job
  drm/xe: fix unbalanced rpm put() with declare_wedged()
  drm/xe: fix unbalanced rpm put() with fence_fini()
  drm/xe/xe2lpg: Extend Wa_15016589081 for xe2lpg
  drm/i915/dp_mst: Don't require DSC hblank quirk for a non-DSC compatible mode
  drm/i915/dp_mst: Handle error during DSC BW overhead/slice calculation
  drm/msm/a6xx+: Insert a fence wait before SMMU table update
  drm/msm/dpu: don't always program merge_3d block
  drm/msm/dpu: Don't always set merge_3d pending flush
  ...
2024-10-18 11:03:21 -07:00
Linus Torvalds
b1b4675167 mm: fix follow_pfnmap API lockdep assert
The lockdep asserts for the new follow_pfnmap() API "knows" that a
pfnmap always has a vma->vm_file, since that's the only way to create
such a mapping.

And that's actually true for all the normal cases.  But not for the mmap
failure case, where the incomplete mapping is torn down and we have
cleared vma->vm_file because the failure occured before the file was
linked to the vma.

So this codepath does actually need to check for vm_file being NULL.

Reported-by: Jann Horn <jannh@google.com>
Fixes: 6da8e9634b ("mm: new follow_pfnmap API")
Cc: Peter Xu <peterx@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2024-10-18 09:50:05 -07:00
Rafael J. Wysocki
cf8679bb77 Merge branch 'pm-cpufreq'
Merge amd-pstate driver fixes for 6.12-rc4:

 - Enable ACPI CPPC in amd_pstate_register_driver() after disabling
   it in amd_pstate_unregister_driver() during driver operation mode
   switch (Dhananjay Ugwekar).

 - Make amd-pstate use nominal performance as the maximum performance
   level when boost is disabled (Mario Limonciello).

* pm-cpufreq:
  cpufreq/amd-pstate: Use nominal perf for limits when boost is disabled
  cpufreq/amd-pstate: Fix amd_pstate mode switch on shared memory systems
2024-10-18 18:22:43 +02:00
Linus Torvalds
75aa74d52f IOMMU Fixes for Linux v6.12-rc3
Including:
 
 	- ARM-SMMU fixes from Will Deacon:
 	  - Clarify warning message when failing to disable the MMU-500
 	    prefetcher
 	  - Fix undefined behaviour in calculation of L1 stream-table index
 	    when 32-bit StreamIDs are implemented
 	  - Replace a rogue comma with a semicolon
 
 	- Intel VT-d fix from Lu Baolu:
 	  - Fix incorrect pci_for_each_dma_alias() for non-PCI devices
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Merge tag 'iommu-fixes-v6.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux

Pull iommu fixes from Joerg Roedel:
 "ARM-SMMU fixes from Will Deacon:

   - Clarify warning message when failing to disable the MMU-500
     prefetcher

   - Fix undefined behaviour in calculation of L1 stream-table index
     when 32-bit StreamIDs are implemented

   - Replace a rogue comma with a semicolon

  Intel VT-d fix from Lu Baolu:

   - Fix incorrect pci_for_each_dma_alias() for non-PCI devices"

* tag 'iommu-fixes-v6.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux:
  iommu/vt-d: Fix incorrect pci_for_each_dma_alias() for non-PCI devices
  iommu/arm-smmu-v3: Convert comma to semicolon
  iommu/arm-smmu-v3: Fix last_sid_idx calculation for sid_bits==32
  iommu/arm-smmu: Clarify MMU-500 CPRE workaround
2024-10-18 07:13:24 -07:00
Linus Torvalds
ef444a0aba powerpc fixes for 6.12 #5
- To prevent possible memory leak, free "name" on error in opal_event_init()
 
 Thanks to: Michael Ellerman, 2639161967.
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Merge tag 'powerpc-6.12-5' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc fix from Madhavan Srinivasan:

 - To prevent possible memory leak, free "name" on error in
   opal_event_init()

Thanks to Michael Ellerman and 2639161967.

* tag 'powerpc-6.12-5' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
  powerpc/powernv: Free name on error in opal_event_init()
2024-10-18 07:07:13 -07:00
Linus Torvalds
c91c14618f s390 fixes for 6.12-rc4
- Fix PCI error recovery by handling error events correctly
 
 - Fix CCA crypto card behavior within protected execution environment
 
 - Two KVM commits which fix virtual vs physical address handling bugs
   in KVM pfault handling
 
 - Fix return code handling in pckmo_key2protkey()
 
 - Deactivate sclp console as late as possible so that outstanding
   messages appear on the console instead of being dropped on reboot
 
 - Convert newlines to CRLF instead of LFCR for the sclp vt220 driver,
   as required by the vt220 specification
 
 - Initialize also psw mask in perf_arch_fetch_caller_regs() to make
   sure that user_mode(regs) will return false
 
 - Update defconfigs
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Merge tag 's390-6.12-3' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

Pull s390 fixes from Heiko Carstens:

 - Fix PCI error recovery by handling error events correctly

 - Fix CCA crypto card behavior within protected execution environment

 - Two KVM commits which fix virtual vs physical address handling bugs
   in KVM pfault handling

 - Fix return code handling in pckmo_key2protkey()

 - Deactivate sclp console as late as possible so that outstanding
   messages appear on the console instead of being dropped on reboot

 - Convert newlines to CRLF instead of LFCR for the sclp vt220 driver,
   as required by the vt220 specification

 - Initialize also psw mask in perf_arch_fetch_caller_regs() to make
   sure that user_mode(regs) will return false

 - Update defconfigs

* tag 's390-6.12-3' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  s390: Update defconfigs
  s390: Initialize psw mask in perf_arch_fetch_caller_regs()
  s390/sclp_vt220: Convert newlines to CRLF instead of LFCR
  s390/sclp: Deactivate sclp after all its users
  s390/pkey_pckmo: Return with success for valid protected key types
  KVM: s390: Change virtual to physical address access in diag 0x258 handler
  KVM: s390: gaccess: Check if guest address is in memslot
  s390/ap: Fix CCA crypto card behavior within protected execution environment
  s390/pci: Handle PCI error codes other than 0x3a
2024-10-18 07:01:59 -07:00
Yo-Jung (Leo) Lin
9b673c7551 misc: rtsx: list supported models in Kconfig help
rts5228, rts5261, rts5264 are supported by the rtsx_pci driver, but
they are not mentioned in the Kconfig help when the code was added.
List those models in the Kconfig help accordingly.

Signed-off-by: Yo-Jung Lin (Leo) <0xff07@gmail.com>
Link: https://lore.kernel.org/r/20241017144747.15966-1-0xff07@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-10-18 13:40:17 +02:00
Greg Kroah-Hartman
6e90b675cf MAINTAINERS: Remove some entries due to various compliance requirements.
Remove some entries due to various compliance requirements. They can come
back in the future if sufficient documentation is provided.

Link: https://lore.kernel.org/r/2024101835-tiptop-blip-09ed@gregkh
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-10-18 13:40:03 +02:00
Greg Kroah-Hartman
1154a59921 USB-serial device ids for 6.12-rc4
Here are some new modem device ids.
 
 Everything has been in linux-next over night with no reported issues.
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Merge tag 'usb-serial-6.12-rc4' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial into usb-linus

Johan writes:

USB-serial device ids for 6.12-rc4

Here are some new modem device ids.

Everything has been in linux-next over night with no reported issues.

* tag 'usb-serial-6.12-rc4' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial:
  USB: serial: option: add Telit FN920C04 MBIM compositions
  USB: serial: option: add support for Quectel EG916Q-GL
2024-10-18 12:11:28 +02:00
Jiqian Chen
0fd2a74330 xen: Remove dependency between pciback and privcmd
Commit 2fae6bb7be ("xen/privcmd: Add new syscall to get gsi from dev")
adds a weak reverse dependency to the config XEN_PRIVCMD definition, that
dependency causes xen-privcmd can't be loaded on domU, because dependent
xen-pciback isn't always be loaded successfully on domU.

To solve above problem, remove that dependency, and do not call
pcistub_get_gsi_from_sbdf() directly, instead add a hook in
drivers/xen/apci.c, xen-pciback register the real call function, then in
privcmd_ioctl_pcidev_get_gsi call that hook.

Fixes: 2fae6bb7be ("xen/privcmd: Add new syscall to get gsi from dev")
Reported-by: Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>
Signed-off-by: Jiqian Chen <Jiqian.Chen@amd.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Message-ID: <20241012084537.1543059-1-Jiqian.Chen@amd.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
2024-10-18 11:59:04 +02:00
Dave Airlie
83f0007848 Driver Changes:
- New workaround to Xe2 (Aradhya)
 - Fix unbalanced rpm put (Matthew Auld)
 - Remove fragile lock optimization (Matthew Brost)
 - Fix job release, delegating it to the drm scheduler (Matthew Brost)
 - Fix timestamp bit width for Xe2 (Lucas)
 - Fix external BO's dma-resv usag (Matthew Brost)
 - Fix returning success for timeout in wait_token (Nirmoy)
 - Initialize fence to avoid it being detected as signaled (Matthew Auld)
 - Improve cache flush for BMG (Matthew Auld)
 - Don't allow hflip for tile4 framebuffer on Xe2 (Juha-Pekka)
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Merge tag 'drm-xe-fixes-2024-10-17' of https://gitlab.freedesktop.org/drm/xe/kernel into drm-fixes

Driver Changes:
- New workaround to Xe2 (Aradhya)
- Fix unbalanced rpm put (Matthew Auld)
- Remove fragile lock optimization (Matthew Brost)
- Fix job release, delegating it to the drm scheduler (Matthew Brost)
- Fix timestamp bit width for Xe2 (Lucas)
- Fix external BO's dma-resv usag (Matthew Brost)
- Fix returning success for timeout in wait_token (Nirmoy)
- Initialize fence to avoid it being detected as signaled (Matthew Auld)
- Improve cache flush for BMG (Matthew Auld)
- Don't allow hflip for tile4 framebuffer on Xe2 (Juha-Pekka)

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

From: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/jkldrex5733ldxrla75b4ayvhujjhw2kccmasl5rotoufoacj4@pkvlrrv4orc7
2024-10-18 13:53:41 +10:00
Linus Torvalds
ade8ff3b6a - AMD Zen CPUs before gen 4 do not flush the RAS (Return Address Stack)
as part of IBPB. Make sure that happens by doing the flushing in
   software on those generations
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Merge tag 'x86_bugs_post_ibpb' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 IBPB fixes from Borislav Petkov:
 "This fixes the IBPB implementation of older AMDs (< gen4) that do not
  flush the RSB (Return Address Stack) so you can still do some leaking
  when using a "=ibpb" mitigation for Retbleed or SRSO. Fix it by doing
  the flushing in software on those generations.

  IBPB is not the default setting so this is not likely to affect
  anybody in practice"

* tag 'x86_bugs_post_ibpb' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/bugs: Do not use UNTRAIN_RET with IBPB on entry
  x86/bugs: Skip RSB fill at VMEXIT
  x86/entry: Have entry_ibpb() invalidate return predictions
  x86/cpufeatures: Add a IBPB_NO_RET BUG flag
  x86/cpufeatures: Define X86_FEATURE_AMD_IBPB_RET
2024-10-17 19:12:38 -07:00
Josh Poimboeuf
b0bf1afde7 cdrom: Avoid barrier_nospec() in cdrom_ioctl_media_changed()
The barrier_nospec() after the array bounds check is overkill and
painfully slow for arches which implement it.

Furthermore, most arches don't implement it, so they remain exposed to
Spectre v1 (which can affect pretty much any CPU with branch
prediction).

Instead, clamp the user pointer to a valid range so it's guaranteed to
be a valid array index even when the bounds check mispredicts.

Fixes: 8270cb10c0 ("cdrom: Fix spectre-v1 gadget")
Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org>
Link: https://lore.kernel.org/r/1d86f4d9d8fba68e5ca64cdeac2451b95a8bf872.1729202937.git.jpoimboe@kernel.org
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2024-10-17 19:47:15 -06:00
Linus Torvalds
4d939780b7 28 hotfixes. 13 are cc:stable. 23 are MM.
It is the usual shower of unrelated singletons - please see the individual
 changelogs for details.
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Merge tag 'mm-hotfixes-stable-2024-10-17-16-08' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull misc fixes from Andrew Morton:
 "28 hotfixes. 13 are cc:stable. 23 are MM.

  It is the usual shower of unrelated singletons - please see the
  individual changelogs for details"

* tag 'mm-hotfixes-stable-2024-10-17-16-08' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (28 commits)
  maple_tree: add regression test for spanning store bug
  maple_tree: correct tree corruption on spanning store
  mm/mglru: only clear kswapd_failures if reclaimable
  mm/swapfile: skip HugeTLB pages for unuse_vma
  selftests: mm: fix the incorrect usage() info of khugepaged
  MAINTAINERS: add Jann as memory mapping/VMA reviewer
  mm: swap: prevent possible data-race in __try_to_reclaim_swap
  mm: khugepaged: fix the incorrect statistics when collapsing large file folios
  MAINTAINERS: kasan, kcov: add bugzilla links
  mm: don't install PMD mappings when THPs are disabled by the hw/process/vma
  mm: huge_memory: add vma_thp_disabled() and thp_disabled_by_hw()
  Docs/damon/maintainer-profile: update deprecated awslabs GitHub URLs
  Docs/damon/maintainer-profile: add missing '_' suffixes for external web links
  maple_tree: check for MA_STATE_BULK on setting wr_rebalance
  mm: khugepaged: fix the arguments order in khugepaged_collapse_file trace point
  mm/damon/tests/sysfs-kunit.h: fix memory leak in damon_sysfs_test_add_targets()
  mm: remove unused stub for can_swapin_thp()
  mailmap: add an entry for Andy Chiu
  MAINTAINERS: add memory mapping/VMA co-maintainers
  fs/proc: fix build with GCC 15 due to -Werror=unterminated-string-initialization
  ...
2024-10-17 16:33:06 -07:00
Linus Torvalds
d4b82e5808 Two clk driver fixes and a unit test fix:
- Terminate the of_device_id table in the Samsung exynosautov920 clk
    driver so that device matching logic doesn't run off the end of the
    array into other memory and break matching for any kernel with this
    driver loaded
 
  - Properly limit the max clk ID in the Rockchip clk driver
 
  - Use clk kunit helpers in the clk tests so that memory isn't leaked
    after the test concludes
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Merge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux

Pull clk fixes from Stephen Boyd:
 "Two clk driver fixes and a unit test fix:

   - Terminate the of_device_id table in the Samsung exynosautov920 clk
     driver so that device matching logic doesn't run off the end of the
     array into other memory and break matching for any kernel with this
     driver loaded

   - Properly limit the max clk ID in the Rockchip clk driver

   - Use clk kunit helpers in the clk tests so that memory isn't leaked
     after the test concludes"

* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
  clk: test: Fix some memory leaks
  clk: rockchip: fix finding of maximum clock ID
  clk: samsung: Fix out-of-bound access of of_match_node()
2024-10-17 16:24:42 -07:00
Dave Airlie
49ff3e79a7 Short summary of fixes pull:
ast:
 - Clear EDID on unplugged connectors
 
 host1x:
 - Fix boot on Tegra186
 - Set DMA parameters
 
 mgag200:
 - Revert VBLANK support
 
 panel:
 - himax-hx83192: Adjust power and gamma
 
 qaic:
 - Sgtable loop fixes
 
 vmwgfx:
 - Limit display layout allocatino size
 - Handle allocation errors in connector checks
 - Clean up KMS code for 2d-only setup
 - Report surface-check errors correctly
 - Remove NULL test around kvfree()
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Merge tag 'drm-misc-fixes-2024-10-17' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-fixes

Short summary of fixes pull:

ast:
- Clear EDID on unplugged connectors

host1x:
- Fix boot on Tegra186
- Set DMA parameters

mgag200:
- Revert VBLANK support

panel:
- himax-hx83192: Adjust power and gamma

qaic:
- Sgtable loop fixes

vmwgfx:
- Limit display layout allocatino size
- Handle allocation errors in connector checks
- Clean up KMS code for 2d-only setup
- Report surface-check errors correctly
- Remove NULL test around kvfree()

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

From: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20241017115516.GA196624@linux.fritz.box
2024-10-18 06:43:17 +10:00
Dave Airlie
7626b4e96b Merge tag 'drm-intel-fixes-2024-10-17' of https://gitlab.freedesktop.org/drm/i915/kernel into drm-fixes
- Two DP bandwidth related MST fixes

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/ZxDLdML9Dwqkb1AW@jlahtine-mobl.ger.corp.intel.com
2024-10-18 06:41:13 +10:00
Dave Airlie
01541a8706 amd-drm-fixes-6.12-2024-10-16:
amdgpu:
 - SR-IOV fix
 - CS chunk handling fix
 - MES fixes
 - SMU13 fixes
 
 amdkfd:
 - VRAM usage reporting fix
 
 radeon:
 - Fix possible_clones handling
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Merge tag 'amd-drm-fixes-6.12-2024-10-16' of https://gitlab.freedesktop.org/agd5f/linux into drm-fixes

amd-drm-fixes-6.12-2024-10-16:

amdgpu:
- SR-IOV fix
- CS chunk handling fix
- MES fixes
- SMU13 fixes

amdkfd:
- VRAM usage reporting fix

radeon:
- Fix possible_clones handling

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

From: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241016200514.3520286-1-alexander.deucher@amd.com
2024-10-18 06:13:19 +10:00
Sebastian Andrzej Siewior
5ec36fe24b MAINTAINERS: Add an entry for PREEMPT_RT.
Add a maintainers entry now that the PREEMPT_RT bits are merged. Steven
volunteered and asked for the list.

There are no files associated with this entry since it is spread over the
kernel. It serves as entry for people knowing what they look for.  There is
a keyword added so if PREEMPT_RT is mentioned somewhere, then the entry
will be picked up.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Pavel Machek <pavel@denx.de>
Link: https://lore.kernel.org/all/20241015151132.Erx81G9f@linutronix.de
2024-10-17 21:33:30 +02:00
Andrii Nakryiko
5ac9b4e935 lib/buildid: Handle memfd_secret() files in build_id_parse()
>From memfd_secret(2) manpage:

  The memory areas backing the file created with memfd_secret(2) are
  visible only to the processes that have access to the file descriptor.
  The memory region is removed from the kernel page tables and only the
  page tables of the processes holding the file descriptor map the
  corresponding physical memory. (Thus, the pages in the region can't be
  accessed by the kernel itself, so that, for example, pointers to the
  region can't be passed to system calls.)

We need to handle this special case gracefully in build ID fetching
code. Return -EFAULT whenever secretmem file is passed to build_id_parse()
family of APIs. Original report and repro can be found in [0].

  [0] https://lore.kernel.org/bpf/ZwyG8Uro%2FSyTXAni@ly-workstation/

Fixes: de3ec364c3 ("lib/buildid: add single folio-based file reader abstraction")
Reported-by: Yi Lai <yi1.lai@intel.com>
Suggested-by: Shakeel Butt <shakeel.butt@linux.dev>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Shakeel Butt <shakeel.butt@linux.dev>
Link: https://lore.kernel.org/bpf/20241017175431.6183-A-hca@linux.ibm.com
Link: https://lore.kernel.org/bpf/20241017174713.2157873-1-andrii@kernel.org
2024-10-17 21:30:32 +02:00
Jens Axboe
de7007e9e6 nvme fixes for Linux 6.12
- Fix target passthrough identifier (Nilay)
  - Fix tcp locking (Hannes)
  - Replace list with sbitmap for tracking RDMA rsp tags (Guixen)
  - Remove unnecessary fallthrough statements (Tokunori)
  - Remove ready-without-media support (Greg)
  - Fix multipath partition scan deadlock (Keith)
  - Fix concurrent PCI reset and remove queue mapping (Maurizio)
  - Fabrics shutdown fixes (Nilay)
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Merge tag 'nvme-6.12-2024-10-18' of git://git.infradead.org/nvme into block-6.12

Pull NVMe fixes from Keith:

"nvme fixes for Linux 6.12

 - Fix target passthrough identifier (Nilay)
 - Fix tcp locking (Hannes)
 - Replace list with sbitmap for tracking RDMA rsp tags (Guixen)
 - Remove unnecessary fallthrough statements (Tokunori)
 - Remove ready-without-media support (Greg)
 - Fix multipath partition scan deadlock (Keith)
 - Fix concurrent PCI reset and remove queue mapping (Maurizio)
 - Fabrics shutdown fixes (Nilay)"

* tag 'nvme-6.12-2024-10-18' of git://git.infradead.org/nvme:
  nvme: use helper nvme_ctrl_state in nvme_keep_alive_finish function
  nvme: make keep-alive synchronous operation
  nvme-loop: flush off pending I/O while shutting down loop controller
  nvme-pci: fix race condition between reset and nvme_dev_disable()
  nvme-multipath: defer partition scanning
  nvme: disable CC.CRIME (NVME_CC_CRIME)
  nvme: delete unnecessary fallthru comment
  nvmet-rdma: use sbitmap to replace rsp free list
  nvme: tcp: avoid race between queue_lock lock and destroy
  nvmet-passthru: clear EUID/NGUID/UUID while using loop target
  block: fix blk_rq_map_integrity_sg kernel-doc
2024-10-17 12:49:27 -06:00
Luca Boccassi
02e2f9aa33 ipe: allow secondary and platform keyrings to install/update policies
The current policy management makes it impossible to use IPE
in a general purpose distribution. In such cases the users are not
building the kernel, the distribution is, and access to the private
key included in the trusted keyring is, for obvious reason, not
available.
This means that users have no way to enable IPE, since there will
be no built-in generic policy, and no access to the key to sign
updates validated by the trusted keyring.

Just as we do for dm-verity, kernel modules and more, allow the
secondary and platform keyrings to also validate policies. This
allows users enrolling their own keys in UEFI db or MOK to also
sign policies, and enroll them. This makes it sensible to enable
IPE in general purpose distributions, as it becomes usable by
any user wishing to do so. Keys in these keyrings can already
load kernels and kernel modules, so there is no security
downgrade.

Add a kconfig each, like dm-verity does, but default to enabled if
the dependencies are available.

Signed-off-by: Luca Boccassi <bluca@debian.org>
Reviewed-by: Serge Hallyn <serge@hallyn.com>
[FW: fixed some style issues]
Signed-off-by: Fan Wu <wufan@kernel.org>
2024-10-17 11:46:10 -07:00
Luca Boccassi
5ceecb301e ipe: also reject policy updates with the same version
Currently IPE accepts an update that has the same version as the policy
being updated, but it doesn't make it a no-op nor it checks that the
old and new policyes are the same. So it is possible to change the
content of a policy, without changing its version. This is very
confusing from userspace when managing policies.
Instead change the update logic to reject updates that have the same
version with ESTALE, as that is much clearer and intuitive behaviour.

Signed-off-by: Luca Boccassi <bluca@debian.org>
Reviewed-by: Serge Hallyn <serge@hallyn.com>
Signed-off-by: Fan Wu <wufan@kernel.org>
2024-10-17 11:38:15 -07:00
Luca Boccassi
579941899d ipe: return -ESTALE instead of -EINVAL on update when new policy has a lower version
When loading policies in userspace we want a recognizable error when an
update attempts to use an old policy, as that is an error that needs
to be treated differently from an invalid policy. Use -ESTALE as it is
clear enough for an update mechanism.

Signed-off-by: Luca Boccassi <bluca@debian.org>
Reviewed-by: Serge Hallyn <serge@hallyn.com>
Signed-off-by: Fan Wu <wufan@kernel.org>
2024-10-17 11:37:13 -07:00
Nilay Shroff
599d9f3a10 nvme: use helper nvme_ctrl_state in nvme_keep_alive_finish function
We no more need acquiring ctrl->lock before accessing the
NVMe controller state and instead we can now use the helper
nvme_ctrl_state. So replace the use of ctrl->lock from
nvme_keep_alive_finish function with nvme_ctrl_state call.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nilay Shroff <nilay@linux.ibm.com>
Signed-off-by: Keith Busch <kbusch@kernel.org>
2024-10-17 11:07:37 -07:00
Nilay Shroff
d06923670b nvme: make keep-alive synchronous operation
The nvme keep-alive operation, which executes at a periodic interval,
could potentially sneak in while shutting down a fabric controller.
This may lead to a race between the fabric controller admin queue
destroy code path (invoked while shutting down controller) and hw/hctx
queue dispatcher called from the nvme keep-alive async request queuing
operation. This race could lead to the kernel crash shown below:

Call Trace:
    autoremove_wake_function+0x0/0xbc (unreliable)
    __blk_mq_sched_dispatch_requests+0x114/0x24c
    blk_mq_sched_dispatch_requests+0x44/0x84
    blk_mq_run_hw_queue+0x140/0x220
    nvme_keep_alive_work+0xc8/0x19c [nvme_core]
    process_one_work+0x200/0x4e0
    worker_thread+0x340/0x504
    kthread+0x138/0x140
    start_kernel_thread+0x14/0x18

While shutting down fabric controller, if nvme keep-alive request sneaks
in then it would be flushed off. The nvme_keep_alive_end_io function is
then invoked to handle the end of the keep-alive operation which
decrements the admin->q_usage_counter and assuming this is the last/only
request in the admin queue then the admin->q_usage_counter becomes zero.
If that happens then blk-mq destroy queue operation (blk_mq_destroy_
queue()) which could be potentially running simultaneously on another
cpu (as this is the controller shutdown code path) would forward
progress and deletes the admin queue. So, now from this point onward
we are not supposed to access the admin queue resources. However the
issue here's that the nvme keep-alive thread running hw/hctx queue
dispatch operation hasn't yet finished its work and so it could still
potentially access the admin queue resource while the admin queue had
been already deleted and that causes the above crash.

This fix helps avoid the observed crash by implementing keep-alive as a
synchronous operation so that we decrement admin->q_usage_counter only
after keep-alive command finished its execution and returns the command
status back up to its caller (blk_execute_rq()). This would ensure that
fabric shutdown code path doesn't destroy the fabric admin queue until
keep-alive request finished execution and also keep-alive thread is not
running hw/hctx queue dispatch operation.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nilay Shroff <nilay@linux.ibm.com>
Signed-off-by: Keith Busch <kbusch@kernel.org>
2024-10-17 11:07:37 -07:00
Nilay Shroff
c199fac88f nvme-loop: flush off pending I/O while shutting down loop controller
While shutting down loop controller, we first quiesce the admin/IO queue,
delete the admin/IO tag-set and then at last destroy the admin/IO queue.
However it's quite possible that during the window between quiescing and
destroying of the admin/IO queue, some admin/IO request might sneak in
and if that happens then we could potentially encounter a hung task
because shutdown operation can't forward progress until any pending I/O
is flushed off.

This commit helps ensure that before destroying the admin/IO queue, we
unquiesce the admin/IO queue so that any outstanding requests, which are
added after the admin/IO queue is quiesced, are now flushed to its
completion.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nilay Shroff <nilay@linux.ibm.com>
Signed-off-by: Keith Busch <kbusch@kernel.org>
2024-10-17 11:07:37 -07:00
Daniel Borkmann
db123e4230 selftests/bpf: Add test case for delta propagation
Add a small BPF verifier test case to ensure that alu32 additions to
registers are not subject to linked scalar delta tracking.

  # ./vmtest.sh -- ./test_progs -t verifier_linked_scalars
  [...]
  ./test_progs -t verifier_linked_scalars
  [    1.413138] tsc: Refined TSC clocksource calibration: 3407.993 MHz
  [    1.413524] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x311fcd52370, max_idle_ns: 440795242006 ns
  [    1.414223] clocksource: Switched to clocksource tsc
  [    1.419640] bpf_testmod: loading out-of-tree module taints kernel.
  [    1.420025] bpf_testmod: module verification failed: signature and/or required key missing - tainting kernel
  #500/1   verifier_linked_scalars/scalars: find linked scalars:OK
  #500     verifier_linked_scalars:OK
  Summary: 1/1 PASSED, 0 SKIPPED, 0 FAILED
  [    1.590858] ACPI: PM: Preparing to enter system sleep state S5
  [    1.591402] reboot: Power down
  [...]

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Eduard Zingerman <eddyz87@gmail.com>
Link: https://lore.kernel.org/bpf/20241016134913.32249-3-daniel@iogearbox.net
2024-10-17 11:06:34 -07:00
Daniel Borkmann
3e9e708757 bpf: Fix print_reg_state's constant scalar dump
print_reg_state() should not consider adding reg->off to reg->var_off.value
when dumping scalars. Scalars can be produced with reg->off != 0 through
BPF_ADD_CONST, and thus as-is this can skew the register log dump.

Fixes: 98d7ca374b ("bpf: Track delta between "linked" registers.")
Reported-by: Nathaniel Theis <nathaniel.theis@nccgroup.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20241016134913.32249-2-daniel@iogearbox.net
2024-10-17 11:06:34 -07:00
Daniel Borkmann
3878ae04e9 bpf: Fix incorrect delta propagation between linked registers
Nathaniel reported a bug in the linked scalar delta tracking, which can lead
to accepting a program with OOB access. The specific code is related to the
sync_linked_regs() function and the BPF_ADD_CONST flag, which signifies a
constant offset between two scalar registers tracked by the same register id.

The verifier attempts to track "similar" scalars in order to propagate bounds
information learned about one scalar to others. For instance, if r1 and r2
are known to contain the same value, then upon encountering 'if (r1 != 0x1234)
goto xyz', not only does it know that r1 is equal to 0x1234 on the path where
that conditional jump is not taken, it also knows that r2 is.

Additionally, with env->bpf_capable set, the verifier will track scalars
which should be a constant delta apart (if r1 is known to be one greater than
r2, then if r1 is known to be equal to 0x1234, r2 must be equal to 0x1233.)
The code path for the latter in adjust_reg_min_max_vals() is reached when
processing both 32 and 64-bit addition operations. While adjust_reg_min_max_vals()
knows whether dst_reg was produced by a 32 or a 64-bit addition (based on the
alu32 bool), the only information saved in dst_reg is the id of the source
register (reg->id, or'ed by BPF_ADD_CONST) and the value of the constant
offset (reg->off).

Later, the function sync_linked_regs() will attempt to use this information
to propagate bounds information from one register (known_reg) to others,
meaning, for all R in linked_regs, it copies known_reg range (and possibly
adjusting delta) into R for the case of R->id == known_reg->id.

For the delta adjustment, meaning, matching reg->id with BPF_ADD_CONST, the
verifier adjusts the register as reg = known_reg; reg += delta where delta
is computed as (s32)reg->off - (s32)known_reg->off and placed as a scalar
into a fake_reg to then simulate the addition of reg += fake_reg. This is
only correct, however, if the value in reg was created by a 64-bit addition.
When reg contains the result of a 32-bit addition operation, its upper 32
bits will always be zero. sync_linked_regs() on the other hand, may cause
the verifier to believe that the addition between fake_reg and reg overflows
into those upper bits. For example, if reg was generated by adding the
constant 1 to known_reg using a 32-bit alu operation, then reg->off is 1
and known_reg->off is 0. If known_reg is known to be the constant 0xFFFFFFFF,
sync_linked_regs() will tell the verifier that reg is equal to the constant
0x100000000. This is incorrect as the actual value of reg will be 0, as the
32-bit addition will wrap around.

Example:

  0: (b7) r0 = 0;             R0_w=0
  1: (18) r1 = 0x80000001;    R1_w=0x80000001
  3: (37) r1 /= 1;            R1_w=scalar()
  4: (bf) r2 = r1;            R1_w=scalar(id=1) R2_w=scalar(id=1)
  5: (bf) r4 = r1;            R1_w=scalar(id=1) R4_w=scalar(id=1)
  6: (04) w2 += 2147483647;   R2_w=scalar(id=1+2147483647,smin=0,smax=umax=0xffffffff,var_off=(0x0; 0xffffffff))
  7: (04) w4 += 0 ;           R4_w=scalar(id=1+0,smin=0,smax=umax=0xffffffff,var_off=(0x0; 0xffffffff))
  8: (15) if r2 == 0x0 goto pc+1
 10: R0=0 R1=0xffffffff80000001 R2=0x7fffffff R4=0xffffffff80000001 R10=fp0

What can be seen here is that r1 is copied to r2 and r4, such that {r1,r2,r4}.id
are all the same which later lets sync_linked_regs() to be invoked. Then, in
a next step constants are added with alu32 to r2 and r4, setting their ->off,
as well as id |= BPF_ADD_CONST. Next, the conditional will bind r2 and
propagate ranges to its linked registers. The verifier now believes the upper
32 bits of r4 are r4=0xffffffff80000001, while actually r4=r1=0x80000001.

One approach for a simple fix suitable also for stable is to limit the constant
delta tracking to only 64-bit alu addition. If necessary at some later point,
BPF_ADD_CONST could be split into BPF_ADD_CONST64 and BPF_ADD_CONST32 to avoid
mixing the two under the tradeoff to further complicate sync_linked_regs().
However, none of the added tests from dedf56d775 ("selftests/bpf: Add tests
for add_const") make this necessary at this point, meaning, BPF CI also passes
with just limiting tracking to 64-bit alu addition.

Fixes: 98d7ca374b ("bpf: Track delta between "linked" registers.")
Reported-by: Nathaniel Theis <nathaniel.theis@nccgroup.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Reviewed-by: Eduard Zingerman <eddyz87@gmail.com>
Link: https://lore.kernel.org/bpf/20241016134913.32249-1-daniel@iogearbox.net
2024-10-17 11:06:34 -07:00
Jordan Rome
ee8c7c6c3f bpf: Properly test iter/task tid filtering
Previously test_task_tid was setting `linfo.task.tid`
to `getpid()` which is the same as `gettid()` for the
parent process. Instead create a new child thread
and set `linfo.task.tid` to `gettid()` to make sure
the tid filtering logic is working as expected.

Signed-off-by: Jordan Rome <linux@jordanrome.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20241016210048.1213935-2-linux@jordanrome.com
2024-10-17 10:52:18 -07:00
Jordan Rome
9495a5b731 bpf: Fix iter/task tid filtering
In userspace, you can add a tid filter by setting
the "task.tid" field for "bpf_iter_link_info".
However, `get_pid_task` when called for the
`BPF_TASK_ITER_TID` type should have been using
`PIDTYPE_PID` (tid) instead of `PIDTYPE_TGID` (pid).

Fixes: f0d74c4da1 ("bpf: Parameterize task iterators.")
Signed-off-by: Jordan Rome <linux@jordanrome.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20241016210048.1213935-1-linux@jordanrome.com
2024-10-17 10:52:18 -07:00
Maurizio Lombardi
26bc0a81f6 nvme-pci: fix race condition between reset and nvme_dev_disable()
nvme_dev_disable() modifies the dev->online_queues field, therefore
nvme_pci_update_nr_queues() should avoid racing against it, otherwise
we could end up passing invalid values to blk_mq_update_nr_hw_queues().

 WARNING: CPU: 39 PID: 61303 at drivers/pci/msi/api.c:347
          pci_irq_get_affinity+0x187/0x210
 Workqueue: nvme-reset-wq nvme_reset_work [nvme]
 RIP: 0010:pci_irq_get_affinity+0x187/0x210
 Call Trace:
  <TASK>
  ? blk_mq_pci_map_queues+0x87/0x3c0
  ? pci_irq_get_affinity+0x187/0x210
  blk_mq_pci_map_queues+0x87/0x3c0
  nvme_pci_map_queues+0x189/0x460 [nvme]
  blk_mq_update_nr_hw_queues+0x2a/0x40
  nvme_reset_work+0x1be/0x2a0 [nvme]

Fix the bug by locking the shutdown_lock mutex before using
dev->online_queues. Give up if nvme_dev_disable() is running or if
it has been executed already.

Fixes: 949928c1c7 ("NVMe: Fix possible queue use after freed")
Tested-by: Yi Zhang <yi.zhang@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Maurizio Lombardi <mlombard@redhat.com>
Signed-off-by: Keith Busch <kbusch@kernel.org>
2024-10-17 09:55:22 -07:00
Linus Torvalds
6efbea77b3 arm64 fixes for -rc4
- Disable software tag-based KASAN when compiling with GCC, as functions
   are incorrectly instrumented leading to a crash early during boot.
 
 - Fix pkey configuration for kernel threads when POE is enabled.
 
 - Fix invalid memory accesses in uprobes when targetting load-literal
   instructions.
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 fixes from Will Deacon:

 - Disable software tag-based KASAN when compiling with GCC, as
   functions are incorrectly instrumented leading to a crash early
   during boot

 - Fix pkey configuration for kernel threads when POE is enabled

 - Fix invalid memory accesses in uprobes when targetting load-literal
   instructions

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  kasan: Disable Software Tag-Based KASAN with GCC
  Documentation/protection-keys: add AArch64 to documentation
  arm64: set POR_EL0 for kernel threads
  arm64: probes: Fix uprobes for big-endian kernels
  arm64: probes: Fix simulate_ldr*_literal()
  arm64: probes: Remove broken LDR (literal) uprobe support
2024-10-17 09:51:03 -07:00
Linus Torvalds
c16e5c94c8 soc: fixes for 6.12
Most of the fixes this time are for platform specific drivers, addressing
 issues found through build testing on freescale, ep93xx, starfive,
 and npcm platforms, as as well as the ffa firmware.
 
 The fixes for the scmi firmware driver address compatibility problems
 found on broadcom machines.
 
 There are only two devicetree fixes, addressing incorrect in configuration
 on broadcom and marvell machines.
 
 The changes to the Documentation and MAINTAINERS files are for
 clarification only.
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Merge tag 'arm-fixes-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull SoC fixes from Arnd Bergmann:
 "Most of the fixes this time are for platform specific drivers,
  addressing issues found through build testing on freescale, ep93xx,
  starfive, and npcm platforms, as as well as the ffa firmware.

  The fixes for the scmi firmware driver address compatibility problems
  found on broadcom machines.

  There are only two devicetree fixes, addressing incorrect in
  configuration on broadcom and marvell machines.

  The changes to the Documentation and MAINTAINERS files are for
  clarification only"

* tag 'arm-fixes-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
  firmware: arm_ffa: Avoid string-fortify warning caused by memcpy()
  firmware: arm_scmi: Queue in scmi layer for mailbox implementation
  firmware: arm_ffa: Avoid string-fortify warning in export_uuid()
  firmware: arm_scmi: Give SMC transport precedence over mailbox
  firmware: arm_scmi: Fix the double free in scmi_debugfs_common_setup()
  Documentation/process: maintainer-soc: clarify submitting patches
  dmaengine: cirrus: check that output may be truncated
  dmaengine: cirrus: ERR_CAST() ioremap error
  MAINTAINERS: use the canonical soc mailing list address and mark it as L:
  ARM: dts: bcm2837-rpi-cm3-io3: Fix HDMI hpd-gpio pin
  arm64: dts: marvell: cn9130-sr-som: fix cp0 mdio pin numbers
  soc: fsl: cpm1: qmc: Fix unused data compilation warning
  soc: fsl: cpm1: qmc: Do not use IS_ERR_VALUE() on error pointers
  reset: starfive: jh71x0: Fix accessing the empty member on JH7110 SoC
  reset: npcm: convert comma to semicolon
2024-10-17 09:43:36 -07:00
Linus Torvalds
5c94bdab3a sound fixes for 6.12-rc4
A collection of small fixes, nothing really stands out.
 
 - Usual HD-audio quirks / device-specific fixes
 - Kconfig dependency fix for UM
 - A series of minor fixes for SoundWire
 - Updates of USB-audio LINE6 contact address
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Merge tag 'sound-6.12-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "A collection of small fixes, nothing really stands out:

   - Usual HD-audio quirks / device-specific fixes

   - Kconfig dependency fix for UM

   - A series of minor fixes for SoundWire

   - Updates of USB-audio LINE6 contact address"

* tag 'sound-6.12-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: hda/conexant - Use cached pin control for Node 0x1d on HP EliteOne 1000 G2
  ALSA/hda: intel-sdw-acpi: add support for sdw-manager-list property read
  ALSA/hda: intel-sdw-acpi: simplify sdw-master-count property read
  ALSA/hda: intel-sdw-acpi: fetch fwnode once in sdw_intel_scan_controller()
  ALSA/hda: intel-sdw-acpi: cleanup sdw_intel_scan_controller
  ALSA: hda/tas2781: Add new quirk for Lenovo, ASUS, Dell projects
  ALSA: scarlett2: Add error check after retrieving PEQ filter values
  ALSA: hda/cs8409: Fix possible NULL dereference
  sound: Make CONFIG_SND depend on INDIRECT_IOMEM instead of UML
  ALSA: line6: update contact information
  ALSA: usb-audio: Fix NULL pointer deref in snd_usb_power_domain_set()
  ALSA: hda/conexant - Fix audio routing for HP EliteOne 1000 G2
  ALSA: hda: Sound support for HP Spectre x360 16 inch model 2024
2024-10-17 09:36:59 -07:00
Linus Torvalds
07d6bf634b No contributions from subtrees.
Current release - new code bugs:
 
   - eth: mlx5: HWS, don't destroy more bwc queue locks than allocated
 
 Previous releases - regressions:
 
   - ipv4: give an IPv4 dev to blackhole_netdev
 
   - udp: compute L4 checksum as usual when not segmenting the skb
 
   - tcp/dccp: don't use timer_pending() in reqsk_queue_unlink().
 
   - eth: mlx5e: don't call cleanup on profile rollback failure
 
   - eth: microchip: vcap api: fix memory leaks in vcap_api_encode_rule_test()
 
   - eth: enetc: disable Tx BD rings after they are empty
 
   - eth: macb: avoid 20s boot delay by skipping MDIO bus registration for fixed-link PHY
 
 Previous releases - always broken:
 
   - posix-clock: fix missing timespec64 check in pc_clock_settime()
 
   - genetlink: hold RCU in genlmsg_mcast()
 
   - mptcp: prevent MPC handshake on port-based signal endpoints
 
   - eth: vmxnet3: fix packet corruption in vmxnet3_xdp_xmit_frame
 
   - eth: stmmac: dwmac-tegra: fix link bring-up sequence
 
   - eth: bcmasp: fix potential memory leak in bcmasp_xmit()
 
 Misc:
 
   - add Andrew Lunn as a co-maintainer of all networking drivers
 
 Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Merge tag 'net-6.12-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Pull networking fixes from Paolo Abeni:
 "Current release - new code bugs:

   - eth: mlx5: HWS, don't destroy more bwc queue locks than allocated

  Previous releases - regressions:

   - ipv4: give an IPv4 dev to blackhole_netdev

   - udp: compute L4 checksum as usual when not segmenting the skb

   - tcp/dccp: don't use timer_pending() in reqsk_queue_unlink().

   - eth: mlx5e: don't call cleanup on profile rollback failure

   - eth: microchip: vcap api: fix memory leaks in
     vcap_api_encode_rule_test()

   - eth: enetc: disable Tx BD rings after they are empty

   - eth: macb: avoid 20s boot delay by skipping MDIO bus registration
     for fixed-link PHY

  Previous releases - always broken:

   - posix-clock: fix missing timespec64 check in pc_clock_settime()

   - genetlink: hold RCU in genlmsg_mcast()

   - mptcp: prevent MPC handshake on port-based signal endpoints

   - eth: vmxnet3: fix packet corruption in vmxnet3_xdp_xmit_frame

   - eth: stmmac: dwmac-tegra: fix link bring-up sequence

   - eth: bcmasp: fix potential memory leak in bcmasp_xmit()

  Misc:

   - add Andrew Lunn as a co-maintainer of all networking drivers"

* tag 'net-6.12-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (47 commits)
  net/mlx5e: Don't call cleanup on profile rollback failure
  net/mlx5: Unregister notifier on eswitch init failure
  net/mlx5: Fix command bitmask initialization
  net/mlx5: Check for invalid vector index on EQ creation
  net/mlx5: HWS, use lock classes for bwc locks
  net/mlx5: HWS, don't destroy more bwc queue locks than allocated
  net/mlx5: HWS, fixed double free in error flow of definer layout
  net/mlx5: HWS, removed wrong access to a number of rules variable
  mptcp: pm: fix UaF read in mptcp_pm_nl_rm_addr_or_subflow
  net: ethernet: mtk_eth_soc: fix memory corruption during fq dma init
  vmxnet3: Fix packet corruption in vmxnet3_xdp_xmit_frame
  net: dsa: vsc73xx: fix reception from VLAN-unaware bridges
  net: ravb: Only advertise Rx/Tx timestamps if hardware supports it
  net: microchip: vcap api: Fix memory leaks in vcap_api_encode_rule_test()
  net: phy: mdio-bcm-unimac: Add BCM6846 support
  dt-bindings: net: brcm,unimac-mdio: Add bcm6846-mdio
  udp: Compute L4 checksum as usual when not segmenting the skb
  genetlink: hold RCU in genlmsg_mcast()
  net: dsa: mv88e6xxx: Fix the max_vid definition for the MV88E6361
  tcp/dccp: Don't use timer_pending() in reqsk_queue_unlink().
  ...
2024-10-17 09:31:18 -07:00
Sean Anderson
78b2770c93 dma-mapping: fix tracing dma_alloc/free with vmalloc'd memory
Not all virtual addresses have physical addresses, such as if they were
vmalloc'd. Just trace the virtual address instead of trying to trace a
physical address. This aligns with the API, and is good enough to
associate dma_alloc with dma_free.

Fixes: 038eb433dc ("dma-mapping: add tracing for dma-mapping API calls")
Reported-by: syzbot+b4bfacdec173efaa8567@syzkaller.appspotmail.com
Closes: https://lore.kernel.org/all/670ebde5.050a0220.d9b66.0154.GAE@google.com/
Signed-off-by: Sean Anderson <sean.anderson@linux.dev>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2024-10-17 17:41:29 +02:00
Lorenzo Stoakes
e993457df6 maple_tree: add regression test for spanning store bug
Add a regression test to assert that, when performing a spanning store
which consumes the entirety of the rightmost right leaf node does not
result in maple tree corruption when doing so.

This achieves this by building a test tree of 3 levels and establishing a
store which ultimately results in a spanned store of this nature.

Link: https://lkml.kernel.org/r/30cdc101a700d16e03ba2f9aa5d83f2efa894168.1728314403.git.lorenzo.stoakes@oracle.com
Signed-off-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Reviewed-by: Liam R. Howlett <Liam.Howlett@Oracle.com>
Reviewed-by: Wei Yang <richard.weiyang@gmail.com>
Cc: Bert Karwatzki <spasswolf@web.de>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Mikhail Gavrilov <mikhail.v.gavrilov@gmail.com>
Cc: Sidhartha Kumar <sidhartha.kumar@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2024-10-17 08:35:10 -07:00