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7 months agoMerge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Linus Torvalds [Fri, 6 Dec 2024 21:47:55 +0000 (13:47 -0800)]
Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 fixes from Catalin Marinas:
 "Nothing major, some left-overs from the recent merging window (MTE,
  coco) and some newly found issues like the ptrace() ones.

   - MTE/hugetlbfs:

      - Set VM_MTE_ALLOWED in the arch code and remove it from the core
        code for hugetlbfs mappings

      - Fix copy_highpage() warning when the source is a huge page but
        not MTE tagged, taking the wrong small page path

   - drivers/virt/coco:

      - Add the pKVM and Arm CCA drivers under the arm64 maintainership

      - Fix the pkvm driver to fall back to ioremap() (and warn) if the
        MMIO_GUARD hypercall fails

      - Keep the Arm CCA driver default 'n' rather than 'm'

   - A series of fixes for the arm64 ptrace() implementation,
     potentially leading to the kernel consuming uninitialised stack
     variables when PTRACE_SETREGSET is invoked with a length of 0

   - Fix zone_dma_limit calculation when RAM starts below 4GB and
     ZONE_DMA is capped to this limit

   - Fix early boot warning with CONFIG_DEBUG_VIRTUAL=y triggered by a
     call to page_to_phys() (from patch_map()) which checks pfn_valid()
     before vmemmap has been set up

   - Do not clobber bits 15:8 of the ASID used for TTBR1_EL1 and TLBI
     ops when the kernel assumes 8-bit ASIDs but running under a
     hypervisor on a system that implements 16-bit ASIDs (found running
     Linux under Parallels on Apple M4)

   - ACPI/IORT: Add PMCG platform information for HiSilicon HIP09A as it
     is using the same SMMU PMCG as HIP09 and suffers from the same
     errata

   - Add GCS to cpucap_is_possible(), missed in the recent merge"

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64: ptrace: fix partial SETREGSET for NT_ARM_GCS
  arm64: ptrace: fix partial SETREGSET for NT_ARM_POE
  arm64: ptrace: fix partial SETREGSET for NT_ARM_FPMR
  arm64: ptrace: fix partial SETREGSET for NT_ARM_TAGGED_ADDR_CTRL
  arm64: cpufeature: Add GCS to cpucap_is_possible()
  coco: virt: arm64: Do not enable cca guest driver by default
  arm64: mte: Fix copy_highpage() warning on hugetlb folios
  arm64: Ensure bits ASID[15:8] are masked out when the kernel uses 8-bit ASIDs
  ACPI/IORT: Add PMCG platform information for HiSilicon HIP09A
  MAINTAINERS: Add CCA and pKVM CoCO guest support to the ARM64 entry
  drivers/virt: pkvm: Don't fail ioremap() call if MMIO_GUARD fails
  arm64: patching: avoid early page_to_phys()
  arm64: mm: Fix zone_dma_limit calculation
  arm64: mte: set VM_MTE_ALLOWED for hugetlbfs at correct place

7 months agoMerge tag 'fixes-2024-12-06' of git://git.kernel.org/pub/scm/linux/kernel/git/rppt...
Linus Torvalds [Fri, 6 Dec 2024 21:42:03 +0000 (13:42 -0800)]
Merge tag 'fixes-2024-12-06' of git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock

Pull memblock fixes from Mike Rapoport:
 "Restore check for node validity in arch_numa.

  The rework of NUMA initialization in arch_numa dropped a check that
  refused to accept configurations with invalid node IDs.

  Restore that check to ensure that when firmware passes invalid nodes,
  such configuration is rejected and kernel gracefully falls back to
  dummy NUMA"

* tag 'fixes-2024-12-06' of git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock:
  arch_numa: Restore nid checks before registering a memblock with a node
  memblock: allow zero threshold in validate_numa_converage()

7 months agoMerge tag 'drm-fixes-2024-12-06' of https://gitlab.freedesktop.org/drm/kernel
Linus Torvalds [Fri, 6 Dec 2024 21:16:41 +0000 (13:16 -0800)]
Merge tag 'drm-fixes-2024-12-06' of https://gitlab.freedesktop.org/drm/kernel

Pull more drm fixes from Simona Vetter:
 "Due to mailing list unreliability we missed the amdgpu pull, hence
  part two with that now included:

   - amdgu: mostly display fixes + jpeg vcn 1.0, sriov, dcn4.0 resume
     fixes

   - amdkfd fixes"

* tag 'drm-fixes-2024-12-06' of https://gitlab.freedesktop.org/drm/kernel:
  drm/amdgpu: rework resume handling for display (v2)
  drm/amd/pm: fix and simplify workload handling
  Revert "drm/amd/pm: correct the workload setting"
  drm/amdgpu: fix sriov reinit late orders
  drm/amdgpu: Fix ISP hw init issue
  drm/amd/display: Add hblank borrowing support
  drm/amd/display: Limit VTotal range to max hw cap minus fp
  drm/amd/display: Correct prefetch calculation
  drm/amd/display: Add option to retrieve detile buffer size
  drm/amd/display: Add a left edge pixel if in YCbCr422 or YCbCr420 and odm
  drm/amdkfd: hard-code cacheline for gc943,gc944
  drm/amdkfd: add MEC version that supports no PCIe atomics for GFX12
  drm/amd/display: Fix programming backlight on OLED panels
  drm/amd: Sanity check the ACPI EDID
  drm/amdgpu/hdp7.0: do a posting read when flushing HDP
  drm/amdgpu/hdp6.0: do a posting read when flushing HDP
  drm/amdgpu/hdp5.2: do a posting read when flushing HDP
  drm/amdgpu/hdp5.0: do a posting read when flushing HDP
  drm/amdgpu/hdp4.0: do a posting read when flushing HDP
  drm/amdgpu/jpeg1.0: fix idle work handler

7 months agoMerge tag 'amd-drm-fixes-6.13-2024-12-04' of https://gitlab.freedesktop.org/agd5f...
Simona Vetter [Fri, 6 Dec 2024 20:54:04 +0000 (21:54 +0100)]
Merge tag 'amd-drm-fixes-6.13-2024-12-04' of https://gitlab.freedesktop.org/agd5f/linux into drm-fixes

amd-drm-fixes-6.13-2024-12-04:

amdgpu:
- Jpeg work handler fix for VCN 1.0
- HDP flush fixes
- ACPI EDID sanity check
- OLED panel backlight fix
- DC YCbCr fix
- DC Detile buffer size debugging
- DC prefetch calculation fix
- DC VTotal handling fix
- DC HBlank fix
- ISP fix
- SR-IOV fix
- Workload profile fixes
- DCN 4.0.1 resume fix

amdkfd:
- GC 12.x fix
- GC 9.4.x fix

Signed-off-by: Simona Vetter <simona.vetter@ffwll.ch>
From: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241206190452.2571042-1-alexander.deucher@amd.com
7 months agoMerge tag 'drm-fixes-2024-12-07' of https://gitlab.freedesktop.org/drm/kernel
Linus Torvalds [Fri, 6 Dec 2024 19:52:15 +0000 (11:52 -0800)]
Merge tag 'drm-fixes-2024-12-07' of https://gitlab.freedesktop.org/drm/kernel

Pull drm fixes from Dave Airlie:
 "Pretty quiet week which is probably expected after US holidays, the
  dma-fence and displayport MST message handling fixes make up the bulk
  of this, along with a couple of minor xe and other driver fixes.

  dma-fence:
   - Fix reference leak on fence-merge failure path
   - Simplify fence merging with kernel's sort()
   - Fix dma_fence_array_signaled() to ensure forward progress

  dp_mst:
   - Fix MST sideband message body length check
   - Fix a bunch of locking/state handling with DP MST msgs

  sti:
   - Add __iomem for mixer_dbg_mxn()'s parameter

  xe:
   - Missing init value and 64-bit write-order check
   - Fix a memory allocation issue causing lockdep violation

  v3d:
   - Performance counter fix"

* tag 'drm-fixes-2024-12-07' of https://gitlab.freedesktop.org/drm/kernel:
  drm/v3d: Enable Performance Counters before clearing them
  drm/dp_mst: Use reset_msg_rx_state() instead of open coding it
  drm/dp_mst: Reset message rx state after OOM in drm_dp_mst_handle_up_req()
  drm/dp_mst: Ensure mst_primary pointer is valid in drm_dp_mst_handle_up_req()
  drm/dp_mst: Fix down request message timeout handling
  drm/dp_mst: Simplify error path in drm_dp_mst_handle_down_rep()
  drm/dp_mst: Verify request type in the corresponding down message reply
  drm/dp_mst: Fix resetting msg rx state after topology removal
  drm/xe: Move the coredump registration to the worker thread
  drm/xe/guc: Fix missing init value and add register order check
  drm/sti: Add __iomem for mixer_dbg_mxn's parameter
  drm/dp_mst: Fix MST sideband message body length check
  dma-buf: fix dma_fence_array_signaled v4
  dma-fence: Use kernel's sort for merging fences
  dma-fence: Fix reference leak on fence merge failure path

7 months agoMerge tag 'sound-6.13-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai...
Linus Torvalds [Fri, 6 Dec 2024 19:46:39 +0000 (11:46 -0800)]
Merge tag 'sound-6.13-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "A collection of small fixes that have been gathered in the week.

   - Fix the missing XRUN handling in USB-audio low latency mode

   - Fix regression by the previous USB-audio hadening change

   - Clean up old SH sound driver to use the standard helpers

   - A few further fixes for MIDI 2.0 UMP handling

   - Various HD-audio and USB-audio quirks

   - Fix jack handling at PM on ASoC Intel AVS

   - Misc small fixes for ASoC SOF and Mediatek"

* tag 'sound-6.13-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: hda/realtek: Fix spelling mistake "Firelfy" -> "Firefly"
  ASoC: mediatek: mt8188-mt6359: Remove hardcoded dmic codec
  ALSA: hda/realtek: fix micmute LEDs don't work on HP Laptops
  ALSA: usb-audio: Add extra PID for RME Digiface USB
  ALSA: usb-audio: Fix a DMA to stack memory bug
  ASoC: SOF: ipc3-topology: fix resource leaks in sof_ipc3_widget_setup_comp_dai()
  ALSA: hda/realtek: Add support for Samsung Galaxy Book3 360 (NP730QFG)
  ASoC: Intel: avs: da7219: Remove suspend_pre() and resume_post()
  ALSA: hda/tas2781: Fix error code tas2781_read_acpi()
  ALSA: hda/realtek: Enable mute and micmute LED on HP ProBook 430 G8
  ALSA: usb-audio: add mixer mapping for Corsair HS80
  ALSA: ump: Shut up truncated string warning
  ALSA: sh: Use standard helper for buffer accesses
  ALSA: usb-audio: Notify xrun for low-latency mode
  ALSA: hda/conexant: fix Z60MR100 startup pop issue
  ALSA: ump: Update legacy substream names upon FB info update
  ALSA: ump: Indicate the inactive group in legacy substream names
  ALSA: ump: Don't open legacy substream for an inactive group
  ALSA: seq: ump: Fix seq port updates per FB info notify

7 months agoMerge tag 'regmap-fix-v6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Fri, 6 Dec 2024 19:43:22 +0000 (11:43 -0800)]
Merge tag 'regmap-fix-v6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap

Pull regmap fixes from Mark Brown:
 "A couple of small fixes, fixing an incorrect format specifier in a log
  message and adding missing cleanup of the devres data used to support
  dev_get_regmap() when a device is unregistered"

* tag 'regmap-fix-v6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
  regmap: detach regmap from dev on regmap_exit
  regmap: Use correct format specifier for logging range errors

7 months agoMerge tag 'spi-fix-v6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/brooni...
Linus Torvalds [Fri, 6 Dec 2024 19:36:48 +0000 (11:36 -0800)]
Merge tag 'spi-fix-v6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi

Pull spi fixes from Mark Brown:
 "A few small driver specific fixes and device ID updates for SPI.

  The Apple change flags the driver as being compatible with the core's
  GPIO chip select support, fixing support for some systems"

* tag 'spi-fix-v6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
  spi: omap2-mcspi: Fix the IS_ERR() bug for devm_clk_get_optional_enabled()
  spi: intel: Add Panther Lake SPI controller support
  spi: apple: Set use_gpio_descriptors to true
  spi: mpc52xx: Add cancel_work_sync before module remove

7 months agoMerge tag 'mmc-v6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc
Linus Torvalds [Fri, 6 Dec 2024 19:27:10 +0000 (11:27 -0800)]
Merge tag 'mmc-v6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc

Pull MMC fixes from Ulf Hansson:
 "Core:
   - Further prevent card detect during shutdown

  Host drivers:
   - sdhci-pci: Add DMI quirk for missing CD GPIO on Vexia Edu Atla 10
     tablet"

* tag 'mmc-v6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
  mmc: core: Further prevent card detect during shutdown
  mmc: sdhci-pci: Add DMI quirk for missing CD GPIO on Vexia Edu Atla 10 tablet

7 months agoMerge tag 'pmdomain-v6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh...
Linus Torvalds [Fri, 6 Dec 2024 19:24:00 +0000 (11:24 -0800)]
Merge tag 'pmdomain-v6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/linux-pm

Pull pmdomain fixes from Ulf Hansson:
 "Core:
   - Fix a couple of memory-leaks during genpd init/remove

  Providers:
   - imx: Adjust delay for gpcv2 to fix power up handshake
   - mediatek: Fix DT bindings by adding another nested power-domain
     layer"

* tag 'pmdomain-v6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/linux-pm:
  pmdomain: imx: gpcv2: Adjust delay after power up handshake
  pmdomain: core: Fix error path in pm_genpd_init() when ida alloc fails
  pmdomain: core: Add missing put_device()
  dt-bindings: power: mediatek: Add another nested power-domain layer

7 months agoMerge tag 'audit-pr-20241205' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoor...
Linus Torvalds [Thu, 5 Dec 2024 23:11:39 +0000 (15:11 -0800)]
Merge tag 'audit-pr-20241205' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit

Pull audit build problem workaround from Paul Moore:
 "A minor audit patch that shuffles some code slightly to workaround a
  GCC bug affecting a number of people.

  The GCC folks have been able to reproduce the problem and are
  discussing solutions (see the bug report link in the commit), but
  since the workaround is trivial let's do that in the kernel so we can
  unblock people who are hitting this"

* tag 'audit-pr-20241205' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit:
  audit: workaround a GCC bug triggered by task comm changes

7 months agoMerge tag 'for-linus-iommufd' of git://git.kernel.org/pub/scm/linux/kernel/git/jgg...
Linus Torvalds [Thu, 5 Dec 2024 23:02:20 +0000 (15:02 -0800)]
Merge tag 'for-linus-iommufd' of git://git.kernel.org/pub/scm/linux/kernel/git/jgg/iommufd

Pull iommufd fixes from Jason Gunthorpe:
 "One bug fix and some documentation updates:

   - Correct typos in comments

   - Elaborate a comment about how the uAPI works for
     IOMMU_HW_INFO_TYPE_ARM_SMMUV3

   - Fix a double free on error path and add test coverage for the bug"

* tag 'for-linus-iommufd' of git://git.kernel.org/pub/scm/linux/kernel/git/jgg/iommufd:
  iommu/arm-smmu-v3: Improve uAPI comment for IOMMU_HW_INFO_TYPE_ARM_SMMUV3
  iommufd/selftest: Cover IOMMU_FAULT_QUEUE_ALLOC in iommufd_fail_nth
  iommufd: Fix out_fput in iommufd_fault_alloc()
  iommufd: Fix typos in kernel-doc comments

7 months agoMerge tag 'drm-misc-fixes-2024-12-05' of https://gitlab.freedesktop.org/drm/misc...
Dave Airlie [Thu, 5 Dec 2024 22:40:46 +0000 (08:40 +1000)]
Merge tag 'drm-misc-fixes-2024-12-05' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-fixes

drm-misc-fixes v6.13-rc2:
- v3d performance counter fix.
- A lot of DP-MST related fixes.

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/2ce1650d-801f-4265-a876-5a8743f1c82b@linux.intel.com
7 months agoMerge tag 'v6.13-rc1-ksmbd-server-fixes' of git://git.samba.org/ksmbd
Linus Torvalds [Thu, 5 Dec 2024 22:38:49 +0000 (14:38 -0800)]
Merge tag 'v6.13-rc1-ksmbd-server-fixes' of git://git.samba.org/ksmbd

Pull smb server fixes from Steve French:

 - Three fixes for potential out of bound accesses in read and write
   paths (e.g. when alternate data streams enabled)

 - GCC 15 build fix

* tag 'v6.13-rc1-ksmbd-server-fixes' of git://git.samba.org/ksmbd:
  ksmbd: align aux_payload_buf to avoid OOB reads in cryptographic operations
  ksmbd: fix Out-of-Bounds Write in ksmbd_vfs_stream_write
  ksmbd: fix Out-of-Bounds Read in ksmbd_vfs_stream_read
  smb: server: Fix building with GCC 15

7 months agoMerge tag 'drm-xe-fixes-2024-12-04' of https://gitlab.freedesktop.org/drm/xe/kernel...
Dave Airlie [Thu, 5 Dec 2024 21:53:59 +0000 (07:53 +1000)]
Merge tag 'drm-xe-fixes-2024-12-04' of https://gitlab.freedesktop.org/drm/xe/kernel into drm-fixes

Driver Changes:
- Missing init value and 64-bit write-order check (Zhanjung)
- Fix a memory allocation issue causing lockdep violation (John)

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Thomas Hellstrom <thomas.hellstrom@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/Z1BidZBFQOLjz__J@fedora
7 months agoMerge tag 'net-6.13-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Linus Torvalds [Thu, 5 Dec 2024 18:25:06 +0000 (10:25 -0800)]
Merge tag 'net-6.13-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

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

  Current release - regressions:

   - rtnetlink: fix double call of rtnl_link_get_net_ifla()

   - tcp: populate XPS related fields of timewait sockets

   - ethtool: fix access to uninitialized fields in set RXNFC command

   - selinux: use sk_to_full_sk() in selinux_ip_output()

  Current release - new code bugs:

   - net: make napi_hash_lock irq safe

   - eth:
      - bnxt_en: support header page pool in queue API
      - ice: fix NULL pointer dereference in switchdev

  Previous releases - regressions:

   - core: fix icmp host relookup triggering ip_rt_bug

   - ipv6:
      - avoid possible NULL deref in modify_prefix_route()
      - release expired exception dst cached in socket

   - smc: fix LGR and link use-after-free issue

   - hsr: avoid potential out-of-bound access in fill_frame_info()

   - can: hi311x: fix potential use-after-free

   - eth: ice: fix VLAN pruning in switchdev mode

  Previous releases - always broken:

   - netfilter:
      - ipset: hold module reference while requesting a module
      - nft_inner: incorrect percpu area handling under softirq

   - can: j1939: fix skb reference counting

   - eth:
      - mlxsw: use correct key block on Spectrum-4
      - mlx5: fix memory leak in mlx5hws_definer_calc_layout"

* tag 'net-6.13-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (76 commits)
  net :mana :Request a V2 response version for MANA_QUERY_GF_STAT
  net: avoid potential UAF in default_operstate()
  vsock/test: verify socket options after setting them
  vsock/test: fix parameter types in SO_VM_SOCKETS_* calls
  vsock/test: fix failures due to wrong SO_RCVLOWAT parameter
  net/mlx5e: Remove workaround to avoid syndrome for internal port
  net/mlx5e: SD, Use correct mdev to build channel param
  net/mlx5: E-Switch, Fix switching to switchdev mode in MPV
  net/mlx5: E-Switch, Fix switching to switchdev mode with IB device disabled
  net/mlx5: HWS: Properly set bwc queue locks lock classes
  net/mlx5: HWS: Fix memory leak in mlx5hws_definer_calc_layout
  bnxt_en: handle tpa_info in queue API implementation
  bnxt_en: refactor bnxt_alloc_rx_rings() to call bnxt_alloc_rx_agg_bmap()
  bnxt_en: refactor tpa_info alloc/free into helpers
  geneve: do not assume mac header is set in geneve_xmit_skb()
  mlxsw: spectrum_acl_flex_keys: Use correct key block on Spectrum-4
  ethtool: Fix wrong mod state in case of verbose and no_mask bitset
  ipmr: tune the ipmr_can_free_table() checks.
  netfilter: nft_set_hash: skip duplicated elements pending gc run
  netfilter: ipset: Hold module reference while requesting a module
  ...

7 months agoMerge tag 'trace-v6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/trace...
Linus Torvalds [Thu, 5 Dec 2024 18:17:55 +0000 (10:17 -0800)]
Merge tag 'trace-v6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace

Pull tracing fixes from Steven Rostedt:

 - Fix trace histogram sort function cmp_entries_dup()

   The sort function cmp_entries_dup() returns either 1 or 0, and not -1
   if parameter "a" is less than "b" by memcmp().

 - Fix archs that call trace_hardirqs_off() without RCU watching

   Both x86 and arm64 no longer call any tracepoints with RCU not
   watching. It was assumed that it was safe to get rid of
   trace_*_rcuidle() version of the tracepoint calls. This was needed to
   get rid of the SRCU protection and be able to implement features like
   faultable traceponits and add rust tracepoints.

   Unfortunately, there were a few architectures that still relied on
   that logic. There's only one file that has tracepoints that are
   called without RCU watching. Add macro logic around the tracepoints
   for architectures that do not have CONFIG_ARCH_WANTS_NO_INSTR defined
   will check if the code is in the idle path (the only place RCU isn't
   watching), and enable RCU around calling the tracepoint, but only do
   it if the tracepoint is enabled.

* tag 'trace-v6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
  tracing: Fix archs that still call tracepoints without RCU watching
  tracing: Fix cmp_entries_dup() to respect sort() comparison rules

7 months agoMerge tag 'hid-for-linus-2024120501' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Thu, 5 Dec 2024 18:06:47 +0000 (10:06 -0800)]
Merge tag 'hid-for-linus-2024120501' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid

Pull HID fixes from Benjamin Tissoires:

 - regression fix in suspend/resume for i2c-hid (Kenny Levinsen)

 - fix wacom driver assuming a name can not be null (WangYuli)

 - a couple of constify changes/fixes (Thomas Weißschuh)

 - a couple of selftests/hid fixes (Maximilian Heyne & Benjamin
   Tissoires)

* tag 'hid-for-linus-2024120501' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid:
  selftests/hid: fix kfunc inclusions with newer bpftool
  HID: bpf: drop unneeded casts discarding const
  HID: bpf: constify hid_ops
  selftests: hid: fix typo and exit code
  HID: wacom: fix when get product name maybe null pointer
  HID: i2c-hid: Revert to using power commands to wake on resume

7 months agoarm64: ptrace: fix partial SETREGSET for NT_ARM_GCS
Mark Rutland [Thu, 5 Dec 2024 12:16:55 +0000 (12:16 +0000)]
arm64: ptrace: fix partial SETREGSET for NT_ARM_GCS

Currently gcs_set() doesn't initialize the temporary 'user_gcs'
variable, and a SETREGSET call with a length of 0, 8, or 16 will leave
some portion of this uninitialized. Consequently some arbitrary
uninitialized values may be written back to the relevant fields in task
struct, potentially leaking up to 192 bits of memory from the kernel
stack. The read is limited to a specific slot on the stack, and the
issue does not provide a write mechanism.

As gcs_set() rejects cases where user_gcs::features_enabled has bits set
other than PR_SHADOW_STACK_SUPPORTED_STATUS_MASK, a SETREGSET call with
a length of zero will randomly succeed or fail depending on the value of
the uninitialized value, it isn't possible to leak the full 192 bits.
With a length of 8 or 16, user_gcs::features_enabled can be initialized
to an accepted value, making it practical to leak 128 or 64 bits.

Fix this by initializing the temporary value before copying the regset
from userspace, as for other regsets (e.g. NT_PRSTATUS, NT_PRFPREG,
NT_ARM_SYSTEM_CALL). In the case of a zero-length or partial write, the
existing contents of the fields which are not written to will be
retained.

To ensure that the extraction and insertion of fields is consistent
across the GETREGSET and SETREGSET calls, new task_gcs_to_user() and
task_gcs_from_user() helpers are added, matching the style of
pac_address_keys_to_user() and pac_address_keys_from_user().

Before this patch:

| # ./gcs-test
| Attempting to write NT_ARM_GCS::user_gcs = {
|     .features_enabled = 0x0000000000000000,
|     .features_locked  = 0x0000000000000000,
|     .gcspr_el0        = 0x900d900d900d900d,
| }
| SETREGSET(nt=0x410, len=24) wrote 24 bytes
|
| Attempting to read NT_ARM_GCS::user_gcs
| GETREGSET(nt=0x410, len=24) read 24 bytes
| Read NT_ARM_GCS::user_gcs = {
|     .features_enabled = 0x0000000000000000,
|     .features_locked  = 0x0000000000000000,
|     .gcspr_el0        = 0x900d900d900d900d,
| }
|
| Attempting partial write NT_ARM_GCS::user_gcs = {
|     .features_enabled = 0x0000000000000000,
|     .features_locked  = 0x1de7ec7edbadc0de,
|     .gcspr_el0        = 0x1de7ec7edbadc0de,
| }
| SETREGSET(nt=0x410, len=8) wrote 8 bytes
|
| Attempting to read NT_ARM_GCS::user_gcs
| GETREGSET(nt=0x410, len=24) read 24 bytes
| Read NT_ARM_GCS::user_gcs = {
|     .features_enabled = 0x0000000000000000,
|     .features_locked  = 0x000000000093e780,
|     .gcspr_el0        = 0xffff800083a63d50,
| }

After this patch:

| # ./gcs-test
| Attempting to write NT_ARM_GCS::user_gcs = {
|     .features_enabled = 0x0000000000000000,
|     .features_locked  = 0x0000000000000000,
|     .gcspr_el0        = 0x900d900d900d900d,
| }
| SETREGSET(nt=0x410, len=24) wrote 24 bytes
|
| Attempting to read NT_ARM_GCS::user_gcs
| GETREGSET(nt=0x410, len=24) read 24 bytes
| Read NT_ARM_GCS::user_gcs = {
|     .features_enabled = 0x0000000000000000,
|     .features_locked  = 0x0000000000000000,
|     .gcspr_el0        = 0x900d900d900d900d,
| }
|
| Attempting partial write NT_ARM_GCS::user_gcs = {
|     .features_enabled = 0x0000000000000000,
|     .features_locked  = 0x1de7ec7edbadc0de,
|     .gcspr_el0        = 0x1de7ec7edbadc0de,
| }
| SETREGSET(nt=0x410, len=8) wrote 8 bytes
|
| Attempting to read NT_ARM_GCS::user_gcs
| GETREGSET(nt=0x410, len=24) read 24 bytes
| Read NT_ARM_GCS::user_gcs = {
|     .features_enabled = 0x0000000000000000,
|     .features_locked  = 0x0000000000000000,
|     .gcspr_el0        = 0x900d900d900d900d,
| }

Fixes: 7ec3b57cb29f ("arm64/ptrace: Expose GCS via ptrace and core files")
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: Will Deacon <will@kernel.org>
Reviewed-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20241205121655.1824269-5-mark.rutland@arm.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
7 months agoarm64: ptrace: fix partial SETREGSET for NT_ARM_POE
Mark Rutland [Thu, 5 Dec 2024 12:16:54 +0000 (12:16 +0000)]
arm64: ptrace: fix partial SETREGSET for NT_ARM_POE

Currently poe_set() doesn't initialize the temporary 'ctrl' variable,
and a SETREGSET call with a length of zero will leave this
uninitialized. Consequently an arbitrary value will be written back to
target->thread.por_el0, potentially leaking up to 64 bits of memory from
the kernel stack. The read is limited to a specific slot on the stack,
and the issue does not provide a write mechanism.

Fix this by initializing the temporary value before copying the regset
from userspace, as for other regsets (e.g. NT_PRSTATUS, NT_PRFPREG,
NT_ARM_SYSTEM_CALL). In the case of a zero-length write, the existing
contents of POR_EL1 will be retained.

Before this patch:

| # ./poe-test
| Attempting to write NT_ARM_POE::por_el0 = 0x900d900d900d900d
| SETREGSET(nt=0x40f, len=8) wrote 8 bytes
|
| Attempting to read NT_ARM_POE::por_el0
| GETREGSET(nt=0x40f, len=8) read 8 bytes
| Read NT_ARM_POE::por_el0 = 0x900d900d900d900d
|
| Attempting to write NT_ARM_POE (zero length)
| SETREGSET(nt=0x40f, len=0) wrote 0 bytes
|
| Attempting to read NT_ARM_POE::por_el0
| GETREGSET(nt=0x40f, len=8) read 8 bytes
| Read NT_ARM_POE::por_el0 = 0xffff8000839c3d50

After this patch:

| # ./poe-test
| Attempting to write NT_ARM_POE::por_el0 = 0x900d900d900d900d
| SETREGSET(nt=0x40f, len=8) wrote 8 bytes
|
| Attempting to read NT_ARM_POE::por_el0
| GETREGSET(nt=0x40f, len=8) read 8 bytes
| Read NT_ARM_POE::por_el0 = 0x900d900d900d900d
|
| Attempting to write NT_ARM_POE (zero length)
| SETREGSET(nt=0x40f, len=0) wrote 0 bytes
|
| Attempting to read NT_ARM_POE::por_el0
| GETREGSET(nt=0x40f, len=8) read 8 bytes
| Read NT_ARM_POE::por_el0 = 0x900d900d900d900d

Fixes: 175198199262 ("arm64/ptrace: add support for FEAT_POE")
Cc: <stable@vger.kernel.org> # 6.12.x
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Cc: Joey Gouly <joey.gouly@arm.com>
Cc: Will Deacon <will@kernel.org>
Reviewed-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20241205121655.1824269-4-mark.rutland@arm.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
7 months agoarm64: ptrace: fix partial SETREGSET for NT_ARM_FPMR
Mark Rutland [Thu, 5 Dec 2024 12:16:53 +0000 (12:16 +0000)]
arm64: ptrace: fix partial SETREGSET for NT_ARM_FPMR

Currently fpmr_set() doesn't initialize the temporary 'fpmr' variable,
and a SETREGSET call with a length of zero will leave this
uninitialized. Consequently an arbitrary value will be written back to
target->thread.uw.fpmr, potentially leaking up to 64 bits of memory from
the kernel stack. The read is limited to a specific slot on the stack,
and the issue does not provide a write mechanism.

Fix this by initializing the temporary value before copying the regset
from userspace, as for other regsets (e.g. NT_PRSTATUS, NT_PRFPREG,
NT_ARM_SYSTEM_CALL). In the case of a zero-length write, the existing
contents of FPMR will be retained.

Before this patch:

| # ./fpmr-test
| Attempting to write NT_ARM_FPMR::fpmr = 0x900d900d900d900d
| SETREGSET(nt=0x40e, len=8) wrote 8 bytes
|
| Attempting to read NT_ARM_FPMR::fpmr
| GETREGSET(nt=0x40e, len=8) read 8 bytes
| Read NT_ARM_FPMR::fpmr = 0x900d900d900d900d
|
| Attempting to write NT_ARM_FPMR (zero length)
| SETREGSET(nt=0x40e, len=0) wrote 0 bytes
|
| Attempting to read NT_ARM_FPMR::fpmr
| GETREGSET(nt=0x40e, len=8) read 8 bytes
| Read NT_ARM_FPMR::fpmr = 0xffff800083963d50

After this patch:

| # ./fpmr-test
| Attempting to write NT_ARM_FPMR::fpmr = 0x900d900d900d900d
| SETREGSET(nt=0x40e, len=8) wrote 8 bytes
|
| Attempting to read NT_ARM_FPMR::fpmr
| GETREGSET(nt=0x40e, len=8) read 8 bytes
| Read NT_ARM_FPMR::fpmr = 0x900d900d900d900d
|
| Attempting to write NT_ARM_FPMR (zero length)
| SETREGSET(nt=0x40e, len=0) wrote 0 bytes
|
| Attempting to read NT_ARM_FPMR::fpmr
| GETREGSET(nt=0x40e, len=8) read 8 bytes
| Read NT_ARM_FPMR::fpmr = 0x900d900d900d900d

Fixes: 4035c22ef7d4 ("arm64/ptrace: Expose FPMR via ptrace")
Cc: <stable@vger.kernel.org> # 6.9.x
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: Will Deacon <will@kernel.org>
Reviewed-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20241205121655.1824269-3-mark.rutland@arm.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
7 months agoMerge tag 'linux-watchdog-6.13-rc1' of git://www.linux-watchdog.org/linux-watchdog
Linus Torvalds [Thu, 5 Dec 2024 18:03:43 +0000 (10:03 -0800)]
Merge tag 'linux-watchdog-6.13-rc1' of git://www.linux-watchdog.org/linux-watchdog

Pull watchdog updates from Wim Van Sebroeck:

 - Add support for exynosautov920 SoC

 - Add support for Airoha EN7851 watchdog

 - Add support for MT6735 TOPRGU/WDT

 - Delete the cpu5wdt driver

 - Always print when registering watchdog fails

 - Several other small fixes and improvements

* tag 'linux-watchdog-6.13-rc1' of git://www.linux-watchdog.org/linux-watchdog: (36 commits)
  watchdog: rti: of: honor timeout-sec property
  watchdog: s3c2410_wdt: add support for exynosautov920 SoC
  dt-bindings: watchdog: Document ExynosAutoV920 watchdog bindings
  watchdog: mediatek: Add support for MT6735 TOPRGU/WDT
  watchdog: mediatek: Make sure system reset gets asserted in mtk_wdt_restart()
  dt-bindings: watchdog: fsl-imx-wdt: Add missing 'big-endian' property
  dt-bindings: watchdog: Document Qualcomm QCS8300
  docs: ABI: Fix spelling mistake in pretimeout_avaialable_governors
  Revert "watchdog: s3c2410_wdt: use exynos_get_pmu_regmap_by_phandle() for PMU regs"
  watchdog: rzg2l_wdt: Power on the watchdog domain in the restart handler
  watchdog: Switch back to struct platform_driver::remove()
  watchdog: it87_wdt: add PWRGD enable quirk for Qotom QCML04
  watchdog: da9063: Remove __maybe_unused notations
  watchdog: da9063: Do not use a global variable
  watchdog: Delete the cpu5wdt driver
  watchdog: Add support for Airoha EN7851 watchdog
  dt-bindings: watchdog: airoha: document watchdog for Airoha EN7581
  watchdog: sl28cpld_wdt: don't print out if registering watchdog fails
  watchdog: rza_wdt: don't print out if registering watchdog fails
  watchdog: rti_wdt: don't print out if registering watchdog fails
  ...

7 months agoarm64: ptrace: fix partial SETREGSET for NT_ARM_TAGGED_ADDR_CTRL
Mark Rutland [Thu, 5 Dec 2024 12:16:52 +0000 (12:16 +0000)]
arm64: ptrace: fix partial SETREGSET for NT_ARM_TAGGED_ADDR_CTRL

Currently tagged_addr_ctrl_set() doesn't initialize the temporary 'ctrl'
variable, and a SETREGSET call with a length of zero will leave this
uninitialized. Consequently tagged_addr_ctrl_set() will consume an
arbitrary value, potentially leaking up to 64 bits of memory from the
kernel stack. The read is limited to a specific slot on the stack, and
the issue does not provide a write mechanism.

As set_tagged_addr_ctrl() only accepts values where bits [63:4] zero and
rejects other values, a partial SETREGSET attempt will randomly succeed
or fail depending on the value of the uninitialized value, and the
exposure is significantly limited.

Fix this by initializing the temporary value before copying the regset
from userspace, as for other regsets (e.g. NT_PRSTATUS, NT_PRFPREG,
NT_ARM_SYSTEM_CALL). In the case of a zero-length write, the existing
value of the tagged address ctrl will be retained.

The NT_ARM_TAGGED_ADDR_CTRL regset is only visible in the
user_aarch64_view used by a native AArch64 task to manipulate another
native AArch64 task. As get_tagged_addr_ctrl() only returns an error
value when called for a compat task, tagged_addr_ctrl_get() and
tagged_addr_ctrl_set() should never observe an error value from
get_tagged_addr_ctrl(). Add a WARN_ON_ONCE() to both to indicate that
such an error would be unexpected, and error handlnig is not missing in
either case.

Fixes: 2200aa7154cb ("arm64: mte: ptrace: Add NT_ARM_TAGGED_ADDR_CTRL regset")
Cc: <stable@vger.kernel.org> # 5.10.x
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Cc: Will Deacon <will@kernel.org>
Reviewed-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20241205121655.1824269-2-mark.rutland@arm.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
7 months agodrm/v3d: Enable Performance Counters before clearing them
Maíra Canal [Wed, 4 Dec 2024 12:28:31 +0000 (09:28 -0300)]
drm/v3d: Enable Performance Counters before clearing them

On the Raspberry Pi 5, performance counters are not being cleared
when `v3d_perfmon_start()` is called, even though we write to the
CLR register. As a result, their values accumulate until they
overflow.

The expected behavior is for performance counters to reset to zero
at the start of a job. When the job finishes and the perfmon is
stopped, the counters should accurately reflect the values for that
specific job.

To ensure this behavior, the performance counters are now enabled
before being cleared. This allows the CLR register to function as
intended, zeroing the counter values when the job begins.

Fixes: 26a4dc29b74a ("drm/v3d: Expose performance counters to userspace")
Signed-off-by: Maíra Canal <mcanal@igalia.com>
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241204122831.17015-1-mcanal@igalia.com
7 months agoarm64: cpufeature: Add GCS to cpucap_is_possible()
Robin Murphy [Thu, 5 Dec 2024 13:48:10 +0000 (13:48 +0000)]
arm64: cpufeature: Add GCS to cpucap_is_possible()

Since system_supports_gcs() ends up referring to cpucap_is_possible(),
teach the latter about GCS for consistency with similar features.

Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Reviewed-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/416c7369fcdce4ebb2a8f12daae234507be27e38.1733406275.git.robin.murphy@arm.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
7 months agoMerge tag 'asoc-fix-v6.13-rc1' of https://git.kernel.org/pub/scm/linux/kernel/git...
Takashi Iwai [Thu, 5 Dec 2024 17:09:29 +0000 (18:09 +0100)]
Merge tag 'asoc-fix-v6.13-rc1' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

ASoC: Fixes for v6.13

A few small fixes for v6.13, all system specific - the biggest thing is
the fix for jack handling over suspend on some Intel laptops.

7 months agococo: virt: arm64: Do not enable cca guest driver by default
Suzuki K Poulose [Thu, 5 Dec 2024 14:36:34 +0000 (14:36 +0000)]
coco: virt: arm64: Do not enable cca guest driver by default

As per the guidelines, new drivers may not be set to default on.
An expert user can always select it.

Reported-by: Dan Williams <dan.j.williams@intel.com>
Cc: Will Deacon <will@kernel.org>
Cc: Steven Price <steven.price@arm.com>
Cc: Sami Mujawar <sami.mujawar@arm.com>
Link: https://lore.kernel.org/r/6750c695194cd_2508129427@dwillia2-xfh.jf.intel.com.notmuch
Link: https://lore.kernel.org/r/20241205143634.306114-1-suzuki.poulose@arm.com
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
7 months agodrm/dp_mst: Use reset_msg_rx_state() instead of open coding it
Imre Deak [Tue, 3 Dec 2024 16:02:23 +0000 (18:02 +0200)]
drm/dp_mst: Use reset_msg_rx_state() instead of open coding it

Use reset_msg_rx_state() in drm_dp_mst_handle_up_req() instead of
open-coding it.

Cc: Lyude Paul <lyude@redhat.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241203160223.2926014-8-imre.deak@intel.com
7 months agotracing: Fix archs that still call tracepoints without RCU watching
Steven Rostedt [Wed, 4 Dec 2024 15:04:14 +0000 (10:04 -0500)]
tracing: Fix archs that still call tracepoints without RCU watching

Tracepoints require having RCU "watching" as it uses RCU to do updates to
the tracepoints. There are some cases that would call a tracepoint when
RCU was not "watching". This was usually in the idle path where RCU has
"shutdown". For the few locations that had tracepoints without RCU
watching, there was an trace_*_rcuidle() variant that could be used. This
used SRCU for protection.

There are tracepoints that trace when interrupts and preemption are
enabled and disabled. In some architectures, these tracepoints are called
in a path where RCU is not watching. When x86 and arm64 removed these
locations, it was incorrectly assumed that it would be safe to remove the
trace_*_rcuidle() variant and also remove the SRCU logic, as it made the
code more complex and harder to implement new tracepoint features (like
faultable tracepoints and tracepoints in rust).

Instead of bringing back the trace_*_rcuidle(), as it will not be trivial
to do as new code has already been added depending on its removal, add a
workaround to the one file that still requires it (trace_preemptirq.c). If
the architecture does not define CONFIG_ARCH_WANTS_NO_INSTR, then check if
the code is in the idle path, and if so, call ct_irq_enter/exit() which
will enable RCU around the tracepoint.

Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Link: https://lore.kernel.org/20241204100414.4d3e06d0@gandalf.local.home
Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Fixes: 48bcda684823 ("tracing: Remove definition of trace_*_rcuidle()")
Closes: https://lore.kernel.org/all/bddb02de-957a-4df5-8e77-829f55728ea2@roeck-us.net/
Acked-by: Paul E. McKenney <paulmck@kernel.org>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Geert Uytterhoeven <geert+renesas@glider.be>
Tested-by: Madhavan Srinivasan <maddy@linux.ibm.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
7 months agodrm/dp_mst: Reset message rx state after OOM in drm_dp_mst_handle_up_req()
Imre Deak [Tue, 3 Dec 2024 16:02:22 +0000 (18:02 +0200)]
drm/dp_mst: Reset message rx state after OOM in drm_dp_mst_handle_up_req()

After an out-of-memory error the reception state should be reset, so
that the next attempt receiving a message doesn't fail (due to getting a
start-of-message packet, while the reception state has already the
start-of-message flag set).

Cc: Lyude Paul <lyude@redhat.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241203160223.2926014-7-imre.deak@intel.com
7 months agodrm/dp_mst: Ensure mst_primary pointer is valid in drm_dp_mst_handle_up_req()
Imre Deak [Wed, 4 Dec 2024 13:20:07 +0000 (15:20 +0200)]
drm/dp_mst: Ensure mst_primary pointer is valid in drm_dp_mst_handle_up_req()

While receiving an MST up request message from one thread in
drm_dp_mst_handle_up_req(), the MST topology could be removed from
another thread via drm_dp_mst_topology_mgr_set_mst(false), freeing
mst_primary and setting drm_dp_mst_topology_mgr::mst_primary to NULL.
This could lead to a NULL deref/use-after-free of mst_primary in
drm_dp_mst_handle_up_req().

Avoid the above by holding a reference for mst_primary in
drm_dp_mst_handle_up_req() while it's used.

v2: Fix kfreeing the request if getting an mst_primary reference fails.

Cc: Lyude Paul <lyude@redhat.com>
Reviewed-by: Lyude Paul <lyude@redhat.com> (v1)
Signed-off-by: Imre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241204132007.3132494-1-imre.deak@intel.com
7 months agodrm/dp_mst: Fix down request message timeout handling
Imre Deak [Tue, 3 Dec 2024 17:46:32 +0000 (19:46 +0200)]
drm/dp_mst: Fix down request message timeout handling

If receiving a reply for an MST down request message times out, the
thread receiving the reply in drm_dp_mst_handle_down_rep() could try to
dereference the drm_dp_sideband_msg_tx txmsg request message after the
thread waiting for the reply - calling drm_dp_mst_wait_tx_reply() - has
timed out and freed txmsg, hence leading to a use-after-free in
drm_dp_mst_handle_down_rep().

Prevent the above by holding the drm_dp_mst_topology_mgr::qlock in
drm_dp_mst_handle_down_rep() for the whole duration txmsg is looked up
from the request list and dereferenced.

v2: Fix unlocking mgr->qlock after verify_rx_request_type() fails.

Cc: Lyude Paul <lyude@redhat.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241203174632.2941402-1-imre.deak@intel.com
7 months agodrm/dp_mst: Simplify error path in drm_dp_mst_handle_down_rep()
Imre Deak [Tue, 3 Dec 2024 16:02:19 +0000 (18:02 +0200)]
drm/dp_mst: Simplify error path in drm_dp_mst_handle_down_rep()

Simplify the error return path in drm_dp_mst_handle_down_rep(),
preparing for the next patch.

While at it use reset_msg_rx_state() instead of open-coding it.

Cc: Lyude Paul <lyude@redhat.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241203160223.2926014-4-imre.deak@intel.com
7 months agodrm/dp_mst: Verify request type in the corresponding down message reply
Imre Deak [Tue, 3 Dec 2024 16:02:18 +0000 (18:02 +0200)]
drm/dp_mst: Verify request type in the corresponding down message reply

After receiving the response for an MST down request message, the
response should be accepted/parsed only if the response type matches
that of the request. Ensure this by checking if the request type code
stored both in the request and the reply match, dropping the reply in
case of a mismatch.

This fixes the topology detection for an MST hub, as described in the
Closes link below, where the hub sends an incorrect reply message after
a CLEAR_PAYLOAD_TABLE -> LINK_ADDRESS down request message sequence.

Cc: Lyude Paul <lyude@redhat.com>
Cc: <stable@vger.kernel.org>
Closes: https://gitlab.freedesktop.org/drm/i915/kernel/-/issues/12804
Reviewed-by: Lyude Paul <lyude@redhat.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241203160223.2926014-3-imre.deak@intel.com
7 months agodrm/dp_mst: Fix resetting msg rx state after topology removal
Imre Deak [Tue, 3 Dec 2024 16:02:17 +0000 (18:02 +0200)]
drm/dp_mst: Fix resetting msg rx state after topology removal

If the MST topology is removed during the reception of an MST down reply
or MST up request sideband message, the
drm_dp_mst_topology_mgr::up_req_recv/down_rep_recv states could be reset
from one thread via drm_dp_mst_topology_mgr_set_mst(false), racing with
the reading/parsing of the message from another thread via
drm_dp_mst_handle_down_rep() or drm_dp_mst_handle_up_req(). The race is
possible since the reader/parser doesn't hold any lock while accessing
the reception state. This in turn can lead to a memory corruption in the
reader/parser as described by commit bd2fccac61b4 ("drm/dp_mst: Fix MST
sideband message body length check").

Fix the above by resetting the message reception state if needed before
reading/parsing a message. Another solution would be to hold the
drm_dp_mst_topology_mgr::lock for the whole duration of the message
reception/parsing in drm_dp_mst_handle_down_rep() and
drm_dp_mst_handle_up_req(), however this would require a bigger change.
Since the fix is also needed for stable, opting for the simpler solution
in this patch.

Cc: Lyude Paul <lyude@redhat.com>
Cc: <stable@vger.kernel.org>
Fixes: 1d082618bbf3 ("drm/display/dp_mst: Fix down/up message handling after sink disconnect")
Closes: https://gitlab.freedesktop.org/drm/i915/kernel/-/issues/13056
Reviewed-by: Lyude Paul <lyude@redhat.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241203160223.2926014-2-imre.deak@intel.com
7 months agoALSA: hda/realtek: Fix spelling mistake "Firelfy" -> "Firefly"
Colin Ian King [Thu, 5 Dec 2024 10:28:33 +0000 (10:28 +0000)]
ALSA: hda/realtek: Fix spelling mistake "Firelfy" -> "Firefly"

There is a spelling mistake in a literal string in the alc269_fixup_tbl
quirk table. Fix it.

Fixes: 0d08f0eec961 ("ALSA: hda/realtek: fix micmute LEDs don't work on HP Laptops")
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Link: https://patch.msgid.link/20241205102833.476190-1-colin.i.king@gmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
7 months agoASoC: mediatek: mt8188-mt6359: Remove hardcoded dmic codec
Nícolas F. R. A. Prado [Tue, 3 Dec 2024 19:20:58 +0000 (16:20 -0300)]
ASoC: mediatek: mt8188-mt6359: Remove hardcoded dmic codec

Remove hardcoded dmic codec from the UL_SRC dai link to avoid requiring
a dmic codec to be present for the driver to probe, as not every
MT8188-based platform might need a dmic codec. The codec can be assigned
to the dai link through the dai-link property in Devicetree on the
platforms where it is needed.

No Devicetree currently relies on it so it is safe to remove without
worrying about backward compatibility.

Fixes: 9f08dcbddeb3 ("ASoC: mediatek: mt8188-mt6359: support new board with nau88255")
Signed-off-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://patch.msgid.link/20241203-mt8188-6359-unhardcode-dmic-v1-1-346e3e5cbe6d@collabora.com
Signed-off-by: Mark Brown <broonie@kernel.org>
7 months agospi: omap2-mcspi: Fix the IS_ERR() bug for devm_clk_get_optional_enabled()
Purushothama Siddaiah [Thu, 5 Dec 2024 07:04:26 +0000 (12:34 +0530)]
spi: omap2-mcspi: Fix the IS_ERR() bug for devm_clk_get_optional_enabled()

The devm_clk_get_optional_enabled() function returns error
pointers(PTR_ERR()). So use IS_ERR() to check it.

Verified on K3-J7200 EVM board, without clock node mentioned
in the device tree.

Signed-off-by: Purushothama Siddaiah <psiddaiah@mvista.com>
Reviewed-by: Corey Minyard <cminyard@mvista.com>
Link: https://patch.msgid.link/20241205070426.1861048-1-psiddaiah@mvista.com
Signed-off-by: Mark Brown <broonie@kernel.org>
7 months agoarm64: mte: Fix copy_highpage() warning on hugetlb folios
Catalin Marinas [Wed, 4 Dec 2024 17:50:04 +0000 (17:50 +0000)]
arm64: mte: Fix copy_highpage() warning on hugetlb folios

Commit 25c17c4b55de ("hugetlb: arm64: add mte support") improved the
copy_highpage() function to update the tags in the destination hugetlb
folio. However, when the source folio isn't tagged, the code takes the
non-hugetlb path where try_page_mte_tagging() warns as the destination
is a hugetlb folio:

  WARNING: CPU: 0 PID: 363 at arch/arm64/include/asm/mte.h:58 copy_highpage+0x1d4/0x2d8
  [...]
  pc : copy_highpage+0x1d4/0x2d8
  lr : copy_highpage+0x78/0x2d8
  [...]
  Call trace:
   copy_highpage+0x1d4/0x2d8 (P)
   copy_highpage+0x78/0x2d8 (L)
   copy_user_highpage+0x20/0x48
   copy_user_large_folio+0x1bc/0x268
   hugetlb_wp+0x190/0x860
   hugetlb_fault+0xa28/0xc10
   handle_mm_fault+0x2a0/0x2c0
   do_page_fault+0x12c/0x578
   do_mem_abort+0x4c/0xa8
   el0_da+0x44/0xb0
   el0t_64_sync_handler+0xc4/0x138
   el0t_64_sync+0x198/0x1a0

Change the check for the tagged status of the source folio so that it
does not fall through the non-hugetlb case. In addition, only perform
the copy (for the full folio) if the source page is the folio head and
warn if the destination folio is already tagged, for symmetry with the
non-hugetlb case.

Fixes: 25c17c4b55de ("hugetlb: arm64: add mte support")
Reported-by: Sasha Levin <sashal@kernel.org>
Cc: Yang Shi <yang@os.amperecomputing.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/Z0STR6VLt2MCalnY@sashalap
Link: https://lore.kernel.org/r/20241204175004.906754-1-catalin.marinas@arm.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
7 months agoarm64: Ensure bits ASID[15:8] are masked out when the kernel uses 8-bit ASIDs
Catalin Marinas [Tue, 3 Dec 2024 15:19:41 +0000 (15:19 +0000)]
arm64: Ensure bits ASID[15:8] are masked out when the kernel uses 8-bit ASIDs

Linux currently sets the TCR_EL1.AS bit unconditionally during CPU
bring-up. On an 8-bit ASID CPU, this is RES0 and ignored, otherwise
16-bit ASIDs are enabled. However, if running in a VM and the hypervisor
reports 8-bit ASIDs (ID_AA64MMFR0_EL1.ASIDBits == 0) on a 16-bit ASIDs
CPU, Linux uses bits 8 to 63 as a generation number for tracking old
process ASIDs. The bottom 8 bits of this generation end up being written
to TTBR1_EL1 and also used for the ASID-based TLBI operations as the
upper 8 bits of the ASID. Following an ASID roll-over event we can have
threads of the same application with the same 8-bit ASID but different
generation numbers running on separate CPUs. Both TLB caching and the
TLBI operations will end up using different actual 16-bit ASIDs for the
same process.

A similar scenario can happen in a big.LITTLE configuration if the boot
CPU only uses 8-bit ASIDs while secondary CPUs have 16-bit ASIDs.

Ensure that the ASID generation is only tracked by bits 16 and up,
leaving bits 15:8 as 0 if the kernel uses 8-bit ASIDs. Note that
clearing TCR_EL1.AS is not sufficient since the architecture requires
that the top 8 bits of the ASID passed to TLBI instructions are 0 rather
than ignored in such configuration.

Cc: stable@vger.kernel.org
Cc: Will Deacon <will@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Marc Zyngier <maz@kernel.org>
Cc: James Morse <james.morse@arm.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Acked-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20241203151941.353796-1-catalin.marinas@arm.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
7 months agoACPI/IORT: Add PMCG platform information for HiSilicon HIP09A
Qinxin Xia [Thu, 5 Dec 2024 01:33:31 +0000 (09:33 +0800)]
ACPI/IORT: Add PMCG platform information for HiSilicon HIP09A

HiSilicon HIP09A platforms using the same SMMU PMCG with HIP09
and thus suffers the same erratum. List them in the PMCG platform
information list without introducing a new SMMU PMCG Model.

Update the silicon-errata.rst as well.

Reviewed-by: Yicong Yang <yangyicong@hisilicon.com>
Acked-by: Hanjun Guo <guohanjun@huawei.com>
Signed-off-by: Qinxin Xia <xiaqinxin@huawei.com>
Link: https://lore.kernel.org/r/20241205013331.1484017-1-xiaqinxin@huawei.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
7 months agonet :mana :Request a V2 response version for MANA_QUERY_GF_STAT
Shradha Gupta [Wed, 4 Dec 2024 05:48:20 +0000 (21:48 -0800)]
net :mana :Request a V2 response version for MANA_QUERY_GF_STAT

The current requested response version(V1) for MANA_QUERY_GF_STAT query
results in STATISTICS_FLAGS_TX_ERRORS_GDMA_ERROR value being set to
0 always.
In order to get the correct value for this counter we request the response
version to be V2.

Cc: stable@vger.kernel.org
Fixes: e1df5202e879 ("net :mana :Add remaining GDMA stats for MANA to ethtool")
Signed-off-by: Shradha Gupta <shradhagupta@linux.microsoft.com>
Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com>
Link: https://patch.msgid.link/1733291300-12593-1-git-send-email-shradhagupta@linux.microsoft.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
7 months agonet: avoid potential UAF in default_operstate()
Eric Dumazet [Tue, 3 Dec 2024 17:09:33 +0000 (17:09 +0000)]
net: avoid potential UAF in default_operstate()

syzbot reported an UAF in default_operstate() [1]

Issue is a race between device and netns dismantles.

After calling __rtnl_unlock() from netdev_run_todo(),
we can not assume the netns of each device is still alive.

Make sure the device is not in NETREG_UNREGISTERED state,
and add an ASSERT_RTNL() before the call to
__dev_get_by_index().

We might move this ASSERT_RTNL() in __dev_get_by_index()
in the future.

[1]

BUG: KASAN: slab-use-after-free in __dev_get_by_index+0x5d/0x110 net/core/dev.c:852
Read of size 8 at addr ffff888043eba1b0 by task syz.0.0/5339

CPU: 0 UID: 0 PID: 5339 Comm: syz.0.0 Not tainted 6.12.0-syzkaller-10296-gaaf20f870da0 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Call Trace:
 <TASK>
  __dump_stack lib/dump_stack.c:94 [inline]
  dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
  print_address_description mm/kasan/report.c:378 [inline]
  print_report+0x169/0x550 mm/kasan/report.c:489
  kasan_report+0x143/0x180 mm/kasan/report.c:602
  __dev_get_by_index+0x5d/0x110 net/core/dev.c:852
  default_operstate net/core/link_watch.c:51 [inline]
  rfc2863_policy+0x224/0x300 net/core/link_watch.c:67
  linkwatch_do_dev+0x3e/0x170 net/core/link_watch.c:170
  netdev_run_todo+0x461/0x1000 net/core/dev.c:10894
  rtnl_unlock net/core/rtnetlink.c:152 [inline]
  rtnl_net_unlock include/linux/rtnetlink.h:133 [inline]
  rtnl_dellink+0x760/0x8d0 net/core/rtnetlink.c:3520
  rtnetlink_rcv_msg+0x791/0xcf0 net/core/rtnetlink.c:6911
  netlink_rcv_skb+0x1e3/0x430 net/netlink/af_netlink.c:2541
  netlink_unicast_kernel net/netlink/af_netlink.c:1321 [inline]
  netlink_unicast+0x7f6/0x990 net/netlink/af_netlink.c:1347
  netlink_sendmsg+0x8e4/0xcb0 net/netlink/af_netlink.c:1891
  sock_sendmsg_nosec net/socket.c:711 [inline]
  __sock_sendmsg+0x221/0x270 net/socket.c:726
  ____sys_sendmsg+0x52a/0x7e0 net/socket.c:2583
  ___sys_sendmsg net/socket.c:2637 [inline]
  __sys_sendmsg+0x269/0x350 net/socket.c:2669
  do_syscall_x64 arch/x86/entry/common.c:52 [inline]
  do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f2a3cb80809
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f2a3d9cd058 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f2a3cd45fa0 RCX: 00007f2a3cb80809
RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000008
RBP: 00007f2a3cbf393e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f2a3cd45fa0 R15: 00007ffd03bc65c8
 </TASK>

Allocated by task 5339:
  kasan_save_stack mm/kasan/common.c:47 [inline]
  kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
  poison_kmalloc_redzone mm/kasan/common.c:377 [inline]
  __kasan_kmalloc+0x98/0xb0 mm/kasan/common.c:394
  kasan_kmalloc include/linux/kasan.h:260 [inline]
  __kmalloc_cache_noprof+0x243/0x390 mm/slub.c:4314
  kmalloc_noprof include/linux/slab.h:901 [inline]
  kmalloc_array_noprof include/linux/slab.h:945 [inline]
  netdev_create_hash net/core/dev.c:11870 [inline]
  netdev_init+0x10c/0x250 net/core/dev.c:11890
  ops_init+0x31e/0x590 net/core/net_namespace.c:138
  setup_net+0x287/0x9e0 net/core/net_namespace.c:362
  copy_net_ns+0x33f/0x570 net/core/net_namespace.c:500
  create_new_namespaces+0x425/0x7b0 kernel/nsproxy.c:110
  unshare_nsproxy_namespaces+0x124/0x180 kernel/nsproxy.c:228
  ksys_unshare+0x57d/0xa70 kernel/fork.c:3314
  __do_sys_unshare kernel/fork.c:3385 [inline]
  __se_sys_unshare kernel/fork.c:3383 [inline]
  __x64_sys_unshare+0x38/0x40 kernel/fork.c:3383
  do_syscall_x64 arch/x86/entry/common.c:52 [inline]
  do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Freed by task 12:
  kasan_save_stack mm/kasan/common.c:47 [inline]
  kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
  kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:582
  poison_slab_object mm/kasan/common.c:247 [inline]
  __kasan_slab_free+0x59/0x70 mm/kasan/common.c:264
  kasan_slab_free include/linux/kasan.h:233 [inline]
  slab_free_hook mm/slub.c:2338 [inline]
  slab_free mm/slub.c:4598 [inline]
  kfree+0x196/0x420 mm/slub.c:4746
  netdev_exit+0x65/0xd0 net/core/dev.c:11992
  ops_exit_list net/core/net_namespace.c:172 [inline]
  cleanup_net+0x802/0xcc0 net/core/net_namespace.c:632
  process_one_work kernel/workqueue.c:3229 [inline]
  process_scheduled_works+0xa63/0x1850 kernel/workqueue.c:3310
  worker_thread+0x870/0xd30 kernel/workqueue.c:3391
  kthread+0x2f0/0x390 kernel/kthread.c:389
  ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
  ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244

The buggy address belongs to the object at ffff888043eba000
 which belongs to the cache kmalloc-2k of size 2048
The buggy address is located 432 bytes inside of
 freed 2048-byte region [ffff888043eba000ffff888043eba800)

The buggy address belongs to the physical page:
page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x43eb8
head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
flags: 0x4fff00000000040(head|node=1|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 04fff00000000040 ffff88801ac42000 dead000000000122 0000000000000000
raw: 0000000000000000 0000000000080008 00000001f5000000 0000000000000000
head: 04fff00000000040 ffff88801ac42000 dead000000000122 0000000000000000
head: 0000000000000000 0000000000080008 00000001f5000000 0000000000000000
head: 04fff00000000003 ffffea00010fae01 ffffffffffffffff 0000000000000000
head: 0000000000000008 0000000000000000 00000000ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 5339, tgid 5338 (syz.0.0), ts 69674195892, free_ts 69663220888
  set_page_owner include/linux/page_owner.h:32 [inline]
  post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1556
  prep_new_page mm/page_alloc.c:1564 [inline]
  get_page_from_freelist+0x3649/0x3790 mm/page_alloc.c:3474
  __alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4751
  alloc_pages_mpol_noprof+0x3e8/0x680 mm/mempolicy.c:2265
  alloc_slab_page+0x6a/0x140 mm/slub.c:2408
  allocate_slab+0x5a/0x2f0 mm/slub.c:2574
  new_slab mm/slub.c:2627 [inline]
  ___slab_alloc+0xcd1/0x14b0 mm/slub.c:3815
  __slab_alloc+0x58/0xa0 mm/slub.c:3905
  __slab_alloc_node mm/slub.c:3980 [inline]
  slab_alloc_node mm/slub.c:4141 [inline]
  __do_kmalloc_node mm/slub.c:4282 [inline]
  __kmalloc_noprof+0x2e6/0x4c0 mm/slub.c:4295
  kmalloc_noprof include/linux/slab.h:905 [inline]
  sk_prot_alloc+0xe0/0x210 net/core/sock.c:2165
  sk_alloc+0x38/0x370 net/core/sock.c:2218
  __netlink_create+0x65/0x260 net/netlink/af_netlink.c:629
  __netlink_kernel_create+0x174/0x6f0 net/netlink/af_netlink.c:2015
  netlink_kernel_create include/linux/netlink.h:62 [inline]
  uevent_net_init+0xed/0x2d0 lib/kobject_uevent.c:783
  ops_init+0x31e/0x590 net/core/net_namespace.c:138
  setup_net+0x287/0x9e0 net/core/net_namespace.c:362
page last free pid 1032 tgid 1032 stack trace:
  reset_page_owner include/linux/page_owner.h:25 [inline]
  free_pages_prepare mm/page_alloc.c:1127 [inline]
  free_unref_page+0xdf9/0x1140 mm/page_alloc.c:2657
  __slab_free+0x31b/0x3d0 mm/slub.c:4509
  qlink_free mm/kasan/quarantine.c:163 [inline]
  qlist_free_all+0x9a/0x140 mm/kasan/quarantine.c:179
  kasan_quarantine_reduce+0x14f/0x170 mm/kasan/quarantine.c:286
  __kasan_slab_alloc+0x23/0x80 mm/kasan/common.c:329
  kasan_slab_alloc include/linux/kasan.h:250 [inline]
  slab_post_alloc_hook mm/slub.c:4104 [inline]
  slab_alloc_node mm/slub.c:4153 [inline]
  kmem_cache_alloc_node_noprof+0x1d9/0x380 mm/slub.c:4205
  __alloc_skb+0x1c3/0x440 net/core/skbuff.c:668
  alloc_skb include/linux/skbuff.h:1323 [inline]
  alloc_skb_with_frags+0xc3/0x820 net/core/skbuff.c:6612
  sock_alloc_send_pskb+0x91a/0xa60 net/core/sock.c:2881
  sock_alloc_send_skb include/net/sock.h:1797 [inline]
  mld_newpack+0x1c3/0xaf0 net/ipv6/mcast.c:1747
  add_grhead net/ipv6/mcast.c:1850 [inline]
  add_grec+0x1492/0x19a0 net/ipv6/mcast.c:1988
  mld_send_initial_cr+0x228/0x4b0 net/ipv6/mcast.c:2234
  ipv6_mc_dad_complete+0x88/0x490 net/ipv6/mcast.c:2245
  addrconf_dad_completed+0x712/0xcd0 net/ipv6/addrconf.c:4342
 addrconf_dad_work+0xdc2/0x16f0
  process_one_work kernel/workqueue.c:3229 [inline]
  process_scheduled_works+0xa63/0x1850 kernel/workqueue.c:3310

Memory state around the buggy address:
 ffff888043eba080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff888043eba100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff888043eba180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                                     ^
 ffff888043eba200: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff888043eba280: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb

Fixes: 8c55facecd7a ("net: linkwatch: only report IF_OPER_LOWERLAYERDOWN if iflink is actually down")
Reported-by: syzbot+1939f24bdb783e9e43d9@syzkaller.appspotmail.com
Closes: https://lore.kernel.org/netdev/674f3a18.050a0220.48a03.0041.GAE@google.com/T/#u
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Link: https://patch.msgid.link/20241203170933.2449307-1-edumazet@google.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
7 months agoMerge tag 'nf-24-12-05' of git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf
Paolo Abeni [Thu, 5 Dec 2024 10:49:14 +0000 (11:49 +0100)]
Merge tag 'nf-24-12-05' 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) Fix esoteric undefined behaviour due to uninitialized stack access
   in ip_vs_protocol_init(), from Jinghao Jia.

2) Fix iptables xt_LED slab-out-of-bounds due to incorrect sanitization
   of the led string identifier, reported by syzbot. Patch from
   Dmitry Antipov.

3) Remove WARN_ON_ONCE reachable from userspace to check for the maximum
   cgroup level, nft_socket cgroup matching is restricted to 255 levels,
   but cgroups allow for INT_MAX levels by default. Reported by syzbot.

4) Fix nft_inner incorrect use of percpu area to store tunnel parser
   context with softirqs, resulting in inconsistent inner header
   offsets that could lead to bogus rule mismatches, reported by syzbot.

5) Grab module reference on ipset core while requesting set type modules,
   otherwise kernel crash is possible by removing ipset core module,
   patch from Phil Sutter.

6) Fix possible double-free in nft_hash garbage collector due to unstable
   walk interator that can provide twice the same element. Use a sequence
   number to skip expired/dead elements that have been already scheduled
   for removal. Based on patch from Laurent Fasnach

netfilter pull request 24-12-05

* tag 'nf-24-12-05' of git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf:
  netfilter: nft_set_hash: skip duplicated elements pending gc run
  netfilter: ipset: Hold module reference while requesting a module
  netfilter: nft_inner: incorrect percpu area handling under softirq
  netfilter: nft_socket: remove WARN_ON_ONCE on maximum cgroup level
  netfilter: x_tables: fix LED ID check in led_tg_check()
  ipvs: fix UB due to uninitialized stack access in ip_vs_protocol_init()
====================

Link: https://patch.msgid.link/20241205002854.162490-1-pablo@netfilter.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
7 months agoMerge branch 'vsock-test-fix-wrong-setsockopt-parameters'
Paolo Abeni [Thu, 5 Dec 2024 10:39:36 +0000 (11:39 +0100)]
Merge branch 'vsock-test-fix-wrong-setsockopt-parameters'

Konstantin Shkolnyy says:

====================
vsock/test: fix wrong setsockopt() parameters

Parameters were created using wrong C types, which caused them to be of
wrong size on some architectures, causing problems.

The problem with SO_RCVLOWAT was found on s390 (big endian), while x86-64
didn't show it. After the fix, all tests pass on s390.
Then Stefano Garzarella pointed out that SO_VM_SOCKETS_* calls might have
a similar problem, which turned out to be true, hence, the second patch.

Changes for v8:
- Fix whitespace warnings from "checkpatch.pl --strict"
- Add maintainers to Cc:
Changes for v7:
- Rebase on top of https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git
- Add the "net" tags to the subjects
Changes for v6:
- rework the patch #3 to avoid creating a new file for new functions,
and exclude vsock_perf from calling the new functions.
- add "Reviewed-by:" to the patch #2.
Changes for v5:
- in the patch #2 replace the introduced uint64_t with unsigned long long
to match documentation
- add a patch #3 that verifies every setsockopt() call.
Changes for v4:
- add "Reviewed-by:" to the first patch, and add a second patch fixing
SO_VM_SOCKETS_* calls, which depends on the first one (hence, it's now
a patch series.)
Changes for v3:
- fix the same problem in vsock_perf and update commit message
Changes for v2:
- add "Fixes:" lines to the commit message
====================

Link: https://patch.msgid.link/20241203150656.287028-1-kshk@linux.ibm.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
7 months agovsock/test: verify socket options after setting them
Konstantin Shkolnyy [Tue, 3 Dec 2024 15:06:56 +0000 (09:06 -0600)]
vsock/test: verify socket options after setting them

Replace setsockopt() calls with calls to functions that follow
setsockopt() with getsockopt() and check that the returned value and its
size are the same as have been set. (Except in vsock_perf.)

Signed-off-by: Konstantin Shkolnyy <kshk@linux.ibm.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
7 months agovsock/test: fix parameter types in SO_VM_SOCKETS_* calls
Konstantin Shkolnyy [Tue, 3 Dec 2024 15:06:55 +0000 (09:06 -0600)]
vsock/test: fix parameter types in SO_VM_SOCKETS_* calls

Change parameters of SO_VM_SOCKETS_* to unsigned long long as documented
in the vm_sockets.h, because the corresponding kernel code requires them
to be at least 64-bit, no matter what architecture. Otherwise they are
too small on 32-bit machines.

Fixes: 5c338112e48a ("test/vsock: rework message bounds test")
Fixes: 685a21c314a8 ("test/vsock: add big message test")
Fixes: 542e893fbadc ("vsock/test: two tests to check credit update logic")
Fixes: 8abbffd27ced ("test/vsock: vsock_perf utility")
Signed-off-by: Konstantin Shkolnyy <kshk@linux.ibm.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
7 months agovsock/test: fix failures due to wrong SO_RCVLOWAT parameter
Konstantin Shkolnyy [Tue, 3 Dec 2024 15:06:54 +0000 (09:06 -0600)]
vsock/test: fix failures due to wrong SO_RCVLOWAT parameter

This happens on 64-bit big-endian machines.
SO_RCVLOWAT requires an int parameter. However, instead of int, the test
uses unsigned long in one place and size_t in another. Both are 8 bytes
long on 64-bit machines. The kernel, having received the 8 bytes, doesn't
test for the exact size of the parameter, it only cares that it's >=
sizeof(int), and casts the 4 lower-addressed bytes to an int, which, on
a big-endian machine, contains 0. 0 doesn't trigger an error, SO_RCVLOWAT
returns with success and the socket stays with the default SO_RCVLOWAT = 1,
which results in vsock_test failures, while vsock_perf doesn't even notice
that it's failed to change it.

Fixes: b1346338fbae ("vsock_test: POLLIN + SO_RCVLOWAT test")
Fixes: 542e893fbadc ("vsock/test: two tests to check credit update logic")
Fixes: 8abbffd27ced ("test/vsock: vsock_perf utility")
Signed-off-by: Konstantin Shkolnyy <kshk@linux.ibm.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
7 months agoaudit: workaround a GCC bug triggered by task comm changes
Yafang shao [Thu, 5 Dec 2024 02:11:00 +0000 (10:11 +0800)]
audit: workaround a GCC bug triggered by task comm changes

A build failure has been reported with the following details:

   In file included from include/linux/string.h:390,
                    from include/linux/bitmap.h:13,
                    from include/linux/cpumask.h:12,
                    from include/linux/smp.h:13,
                    from include/linux/lockdep.h:14,
                    from include/linux/spinlock.h:63,
                    from include/linux/wait.h:9,
                    from include/linux/wait_bit.h:8,
                    from include/linux/fs.h:6,
                    from kernel/auditsc.c:37:
   In function 'sized_strscpy',
       inlined from '__audit_ptrace' at kernel/auditsc.c:2732:2:
>> include/linux/fortify-string.h:293:17:
   error: call to '__write_overflow' declared with attribute error:
   detected write beyond size of object (1st parameter)
     293 |                 __write_overflow();
         |                 ^~~~~~~~~~~~~~~~~~
   In function 'sized_strscpy',
       inlined from 'audit_signal_info_syscall' at kernel/auditsc.c:2759:3:
>> include/linux/fortify-string.h:293:17:
   error: call to '__write_overflow' declared with attribute error:
   detected write beyond size of object (1st parameter)
     293 |                 __write_overflow();
         |                 ^~~~~~~~~~~~~~~~~~

The issue appears to be a GCC bug, though the root cause remains
unclear at this time. For now, let's implement a workaround.

A bug report has also been filed with GCC [0].

Link: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117912
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202410171420.1V00ICVG-lkp@intel.com/
Reported-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Closes: https://lore.kernel.org/all/20241128182435.57a1ea6f@gandalf.local.home/
Reported-by: Zhuo, Qiuxu <qiuxu.zhuo@intel.com>
Closes: https://lore.kernel.org/all/CY8PR11MB71348E568DBDA576F17DAFF389362@CY8PR11MB7134.namprd11.prod.outlook.com/
Originally-by: Kees Cook <kees@kernel.org>
Link: https://lore.kernel.org/linux-hardening/202410171059.C2C395030@keescook/
Signed-off-by: Yafang shao <laoar.shao@gmail.com>
Tested-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Tested-by: Yafang Shao <laoar.shao@gmail.com>
[PM: subject tweak, description line wrapping]
Signed-off-by: Paul Moore <paul@paul-moore.com>
7 months agoMerge branch '100GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net...
Jakub Kicinski [Thu, 5 Dec 2024 03:46:49 +0000 (19:46 -0800)]
Merge branch '100GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net-queue

Tony Nguyen says:

====================
Intel Wired LAN Driver Updates 2024-12-03 (ice, idpf, ixgbe, ixgbevf, igb)

This series contains updates to ice, idpf, ixgbe, ixgbevf, and igb
drivers.

For ice:
Arkadiusz corrects search for determining whether PHY clock recovery is
supported on the device.

Przemyslaw corrects mask used for PHY timestamps on ETH56G devices.

Wojciech adds missing virtchnl ops which caused NULL pointer
dereference.

Marcin fixes VLAN filter settings for uplink VSI in switchdev mode.

For idpf:
Josh restores setting of completion tag for empty buffers.

For ixgbevf:
Jake removes incorrect initialization/support of IPSEC for mailbox
version 1.5.

For ixgbe:
Jake rewords and downgrades misleading message when negotiation
of VF mailbox version is not supported.

Tore Amundsen corrects value for BASE-BX10 capability.

For igb:
Yuan Can adds proper teardown on failed pci_register_driver() call.

* '100GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net-queue:
  igb: Fix potential invalid memory access in igb_init_module()
  ixgbe: Correct BASE-BX10 compliance code
  ixgbe: downgrade logging of unsupported VF API version to debug
  ixgbevf: stop attempting IPSEC offload on Mailbox API 1.5
  idpf: set completion tag for "empty" bufs associated with a packet
  ice: Fix VLAN pruning in switchdev mode
  ice: Fix NULL pointer dereference in switchdev
  ice: fix PHY timestamp extraction for ETH56G
  ice: fix PHY Clock Recovery availability check
====================

Link: https://patch.msgid.link/20241203215521.1646668-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
7 months agoMerge branch 'mlx5-misc-fixes-2024-12-03'
Jakub Kicinski [Thu, 5 Dec 2024 03:43:48 +0000 (19:43 -0800)]
Merge branch 'mlx5-misc-fixes-2024-12-03'

Tariq Toukan says:

====================
mlx5 misc fixes 2024-12-03

This patchset provides misc bug fixes from the team to the mlx5 core and
Eth drivers.
====================

Link: https://patch.msgid.link/20241203204920.232744-1-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
7 months agonet/mlx5e: Remove workaround to avoid syndrome for internal port
Jianbo Liu [Tue, 3 Dec 2024 20:49:20 +0000 (22:49 +0200)]
net/mlx5e: Remove workaround to avoid syndrome for internal port

Previously a workaround was added to avoid syndrome 0xcdb051. It is
triggered when offload a rule with tunnel encapsulation, and
forwarding to another table, but not matching on the internal port in
firmware steering mode. The original workaround skips internal tunnel
port logic, which is not correct as not all cases are considered. As
an example, if vlan is configured on the uplink port, traffic can't
pass because vlan header is not added with this workaround. Besides,
there is no such issue for software steering. So, this patch removes
that, and returns error directly if trying to offload such rule for
firmware steering.

Fixes: 06b4eac9c4be ("net/mlx5e: Don't offload internal port if filter device is out device")
Signed-off-by: Jianbo Liu <jianbol@nvidia.com>
Tested-by: Frode Nordahl <frode.nordahl@canonical.com>
Reviewed-by: Chris Mi <cmi@nvidia.com>
Reviewed-by: Ariel Levkovich <lariel@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/20241203204920.232744-7-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
7 months agonet/mlx5e: SD, Use correct mdev to build channel param
Tariq Toukan [Tue, 3 Dec 2024 20:49:19 +0000 (22:49 +0200)]
net/mlx5e: SD, Use correct mdev to build channel param

In a multi-PF netdev, each traffic channel creates its own resources
against a specific PF.
In the cited commit, where this support was added, the channel_param
logic was mistakenly kept unchanged, so it always used the primary PF
which is found at priv->mdev.
In this patch we fix this by moving the logic to be per-channel, and
passing the correct mdev instance.

This bug happened to be usually harmless, as the resulting cparam
structures would be the same for all channels, due to identical FW logic
and decisions.
However, in some use cases, like fwreset, this gets broken.

This could lead to different symptoms. Example:
Error cqe on cqn 0x428, ci 0x0, qn 0x10a9, opcode 0xe, syndrome 0x4,
vendor syndrome 0x32

Fixes: e4f9686bdee7 ("net/mlx5e: Let channels be SD-aware")
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Lama Kayal <lkayal@nvidia.com>
Reviewed-by: Gal Pressman <gal@nvidia.com>
Link: https://patch.msgid.link/20241203204920.232744-6-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
7 months agonet/mlx5: E-Switch, Fix switching to switchdev mode in MPV
Patrisious Haddad [Tue, 3 Dec 2024 20:49:18 +0000 (22:49 +0200)]
net/mlx5: E-Switch, Fix switching to switchdev mode in MPV

Fix the mentioned commit change for MPV mode, since in MPV mode the IB
device is shared between different core devices, so under this change
when moving both devices simultaneously to switchdev mode the IB device
removal and re-addition can race with itself causing unexpected behavior.

In such case do rescan_drivers() only once in order to add the ethernet
representor auxiliary device, and skip adding and removing IB devices.

Fixes: ab85ebf43723 ("net/mlx5: E-switch, refactor eswitch mode change")
Signed-off-by: Patrisious Haddad <phaddad@nvidia.com>
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/20241203204920.232744-5-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
7 months agonet/mlx5: E-Switch, Fix switching to switchdev mode with IB device disabled
Patrisious Haddad [Tue, 3 Dec 2024 20:49:17 +0000 (22:49 +0200)]
net/mlx5: E-Switch, Fix switching to switchdev mode with IB device disabled

In case that IB device is already disabled when moving to switchdev mode,
which can happen when working with LAG, need to do rescan_drivers()
before leaving in order to add ethernet representor auxiliary device.

Fixes: ab85ebf43723 ("net/mlx5: E-switch, refactor eswitch mode change")
Signed-off-by: Patrisious Haddad <phaddad@nvidia.com>
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/20241203204920.232744-4-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
7 months agonet/mlx5: HWS: Properly set bwc queue locks lock classes
Cosmin Ratiu [Tue, 3 Dec 2024 20:49:16 +0000 (22:49 +0200)]
net/mlx5: HWS: Properly set bwc queue locks lock classes

The mentioned "Fixes" patch forgot to do that.

Fixes: 9addffa34359 ("net/mlx5: HWS, use lock classes for bwc locks")
Signed-off-by: Cosmin Ratiu <cratiu@nvidia.com>
Reviewed-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/20241203204920.232744-3-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
7 months agonet/mlx5: HWS: Fix memory leak in mlx5hws_definer_calc_layout
Cosmin Ratiu [Tue, 3 Dec 2024 20:49:15 +0000 (22:49 +0200)]
net/mlx5: HWS: Fix memory leak in mlx5hws_definer_calc_layout

It allocates a match template, which creates a compressed definer fc
struct, but that is not deallocated.

This commit fixes that.

Fixes: 74a778b4a63f ("net/mlx5: HWS, added definers handling")
Signed-off-by: Cosmin Ratiu <cratiu@nvidia.com>
Reviewed-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/20241203204920.232744-2-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
7 months agoMerge branch 'bnxt_en-support-header-page-pool-in-queue-api'
Jakub Kicinski [Thu, 5 Dec 2024 03:23:36 +0000 (19:23 -0800)]
Merge branch 'bnxt_en-support-header-page-pool-in-queue-api'

David Wei says:

====================
bnxt_en: support header page pool in queue API

Commit 7ed816be35ab ("eth: bnxt: use page pool for head frags") added a
separate page pool for header frags. Now, frags are allocated from this
header page pool e.g. rxr->tpa_info.data.

The queue API did not properly handle rxr->tpa_info and so using the
queue API to i.e. reset any queues will result in pages being returned
to the incorrect page pool, causing inflight != 0 warnings.

Fix this bug by properly allocating/freeing tpa_info and copying/freeing
head_pool in the queue API implementation.

The 1st patch is a prep patch that refactors helpers out to be used by
the implementation patch later.

The 2nd patch is a drive-by refactor. Happy to take it out and re-send
to net-next if there are any objections.

The 3rd patch is the implementation patch that will properly alloc/free
rxr->tpa_info.
====================

Link: https://patch.msgid.link/20241204041022.56512-1-dw@davidwei.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
7 months agobnxt_en: handle tpa_info in queue API implementation
David Wei [Wed, 4 Dec 2024 04:10:22 +0000 (20:10 -0800)]
bnxt_en: handle tpa_info in queue API implementation

Commit 7ed816be35ab ("eth: bnxt: use page pool for head frags") added a
page pool for header frags, which may be distinct from the existing pool
for the aggregation ring. Prior to this change, frags used in the TPA
ring rx_tpa were allocated from system memory e.g. napi_alloc_frag()
meaning their lifetimes were not associated with a page pool. They can
be returned at any time and so the queue API did not alloc or free
rx_tpa.

But now frags come from a separate head_pool which may be different to
page_pool. Without allocating and freeing rx_tpa, frags allocated from
the old head_pool may be returned to a different new head_pool which
causes a mismatch between the pp hold/release count.

Fix this problem by properly freeing and allocating rx_tpa in the queue
API implementation.

Signed-off-by: David Wei <dw@davidwei.uk>
Reviewed-by: Michael Chan <michael.chan@broadcom.com>
Link: https://patch.msgid.link/20241204041022.56512-4-dw@davidwei.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
7 months agobnxt_en: refactor bnxt_alloc_rx_rings() to call bnxt_alloc_rx_agg_bmap()
David Wei [Wed, 4 Dec 2024 04:10:21 +0000 (20:10 -0800)]
bnxt_en: refactor bnxt_alloc_rx_rings() to call bnxt_alloc_rx_agg_bmap()

Refactor bnxt_alloc_rx_rings() to call bnxt_alloc_rx_agg_bmap() for
allocating rx_agg_bmap.

Reviewed-by: Somnath Kotur <somnath.kotur@broadcom.com>
Signed-off-by: David Wei <dw@davidwei.uk>
Reviewed-by: Michael Chan <michael.chan@broadcom.com>
Link: https://patch.msgid.link/20241204041022.56512-3-dw@davidwei.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
7 months agobnxt_en: refactor tpa_info alloc/free into helpers
David Wei [Wed, 4 Dec 2024 04:10:20 +0000 (20:10 -0800)]
bnxt_en: refactor tpa_info alloc/free into helpers

Refactor bnxt_rx_ring_info->tpa_info operations into helpers that work
on a single tpa_info in prep for queue API using them.

There are 2 pairs of operations:

* bnxt_alloc_one_tpa_info()
* bnxt_free_one_tpa_info()

These alloc/free the tpa_info array itself.

* bnxt_alloc_one_tpa_info_data()
* bnxt_free_one_tpa_info_data()

These alloc/free the frags stored in tpa_info array.

Reviewed-by: Somnath Kotur <somnath.kotur@broadcom.com>
Signed-off-by: David Wei <dw@davidwei.uk>
Reviewed-by: Michael Chan <michael.chan@broadcom.com>
Link: https://patch.msgid.link/20241204041022.56512-2-dw@davidwei.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
7 months agogeneve: do not assume mac header is set in geneve_xmit_skb()
Eric Dumazet [Tue, 3 Dec 2024 18:21:21 +0000 (18:21 +0000)]
geneve: do not assume mac header is set in geneve_xmit_skb()

We should not assume mac header is set in output path.

Use skb_eth_hdr() instead of eth_hdr() to fix the issue.

sysbot reported the following :

 WARNING: CPU: 0 PID: 11635 at include/linux/skbuff.h:3052 skb_mac_header include/linux/skbuff.h:3052 [inline]
 WARNING: CPU: 0 PID: 11635 at include/linux/skbuff.h:3052 eth_hdr include/linux/if_ether.h:24 [inline]
 WARNING: CPU: 0 PID: 11635 at include/linux/skbuff.h:3052 geneve_xmit_skb drivers/net/geneve.c:898 [inline]
 WARNING: CPU: 0 PID: 11635 at include/linux/skbuff.h:3052 geneve_xmit+0x4c38/0x5730 drivers/net/geneve.c:1039
Modules linked in:
CPU: 0 UID: 0 PID: 11635 Comm: syz.4.1423 Not tainted 6.12.0-syzkaller-10296-gaaf20f870da0 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
 RIP: 0010:skb_mac_header include/linux/skbuff.h:3052 [inline]
 RIP: 0010:eth_hdr include/linux/if_ether.h:24 [inline]
 RIP: 0010:geneve_xmit_skb drivers/net/geneve.c:898 [inline]
 RIP: 0010:geneve_xmit+0x4c38/0x5730 drivers/net/geneve.c:1039
Code: 21 c6 02 e9 35 d4 ff ff e8 a5 48 4c fb 90 0f 0b 90 e9 fd f5 ff ff e8 97 48 4c fb 90 0f 0b 90 e9 d8 f5 ff ff e8 89 48 4c fb 90 <0f> 0b 90 e9 41 e4 ff ff e8 7b 48 4c fb 90 0f 0b 90 e9 cd e7 ff ff
RSP: 0018:ffffc90003b2f870 EFLAGS: 00010283
RAX: 000000000000037a RBX: 000000000000ffff RCX: ffffc9000dc3d000
RDX: 0000000000080000 RSI: ffffffff86428417 RDI: 0000000000000003
RBP: ffffc90003b2f9f0 R08: 0000000000000003 R09: 000000000000ffff
R10: 000000000000ffff R11: 0000000000000002 R12: ffff88806603c000
R13: 0000000000000000 R14: ffff8880685b2780 R15: 0000000000000e23
FS:  00007fdc2deed6c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b30a1dff8 CR3: 0000000056b8c000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
  __netdev_start_xmit include/linux/netdevice.h:5002 [inline]
  netdev_start_xmit include/linux/netdevice.h:5011 [inline]
  __dev_direct_xmit+0x58a/0x720 net/core/dev.c:4490
  dev_direct_xmit include/linux/netdevice.h:3181 [inline]
  packet_xmit+0x1e4/0x360 net/packet/af_packet.c:285
  packet_snd net/packet/af_packet.c:3146 [inline]
  packet_sendmsg+0x2700/0x5660 net/packet/af_packet.c:3178
  sock_sendmsg_nosec net/socket.c:711 [inline]
  __sock_sendmsg net/socket.c:726 [inline]
  __sys_sendto+0x488/0x4f0 net/socket.c:2197
  __do_sys_sendto net/socket.c:2204 [inline]
  __se_sys_sendto net/socket.c:2200 [inline]
  __x64_sys_sendto+0xe0/0x1c0 net/socket.c:2200
  do_syscall_x64 arch/x86/entry/common.c:52 [inline]
  do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Fixes: a025fb5f49ad ("geneve: Allow configuration of DF behaviour")
Reported-by: syzbot+3ec5271486d7cb2d242a@syzkaller.appspotmail.com
Closes: https://lore.kernel.org/netdev/674f4b72.050a0220.17bd51.004a.GAE@google.com/T/#u
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Stefano Brivio <sbrivio@redhat.com>
Link: https://patch.msgid.link/20241203182122.2725517-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
7 months agomlxsw: spectrum_acl_flex_keys: Use correct key block on Spectrum-4
Ido Schimmel [Tue, 3 Dec 2024 15:16:05 +0000 (16:16 +0100)]
mlxsw: spectrum_acl_flex_keys: Use correct key block on Spectrum-4

The driver is currently using an ACL key block that is not supported by
Spectrum-4. This works because the driver is only using a single field
from this key block which is located in the same offset in the
equivalent Spectrum-4 key block.

The issue was discovered when the firmware started rejecting the use of
the unsupported key block. The change has been reverted to avoid
breaking users that only update their firmware.

Nonetheless, fix the issue by using the correct key block.

Fixes: 07ff135958dd ("mlxsw: Introduce flex key elements for Spectrum-4")
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: Petr Machata <petrm@nvidia.com>
Link: https://patch.msgid.link/35e72c97bdd3bc414fb8e4d747e5fb5d26c29658.1733237440.git.petrm@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
7 months agoethtool: Fix wrong mod state in case of verbose and no_mask bitset
Kory Maincent [Mon, 2 Dec 2024 15:33:57 +0000 (16:33 +0100)]
ethtool: Fix wrong mod state in case of verbose and no_mask bitset

A bitset without mask in a _SET request means we want exactly the bits in
the bitset to be set. This works correctly for compact format but when
verbose format is parsed, ethnl_update_bitset32_verbose() only sets the
bits present in the request bitset but does not clear the rest. The commit
6699170376ab ("ethtool: fix application of verbose no_mask bitset") fixes
this issue by clearing the whole target bitmap before we start iterating.
The solution proposed brought an issue with the behavior of the mod
variable. As the bitset is always cleared the old value will always
differ to the new value.

Fix it by adding a new function to compare bitmaps and a temporary variable
which save the state of the old bitmap.

Fixes: 6699170376ab ("ethtool: fix application of verbose no_mask bitset")
Signed-off-by: Kory Maincent <kory.maincent@bootlin.com>
Link: https://patch.msgid.link/20241202153358.1142095-1-kory.maincent@bootlin.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
7 months agoipmr: tune the ipmr_can_free_table() checks.
Paolo Abeni [Tue, 3 Dec 2024 09:48:15 +0000 (10:48 +0100)]
ipmr: tune the ipmr_can_free_table() checks.

Eric reported a syzkaller-triggered splat caused by recent ipmr changes:

WARNING: CPU: 2 PID: 6041 at net/ipv6/ip6mr.c:419
ip6mr_free_table+0xbd/0x120 net/ipv6/ip6mr.c:419
Modules linked in:
CPU: 2 UID: 0 PID: 6041 Comm: syz-executor183 Not tainted
6.12.0-syzkaller-10681-g65ae975e97d5 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS
1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
RIP: 0010:ip6mr_free_table+0xbd/0x120 net/ipv6/ip6mr.c:419
Code: 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c
02 00 75 58 49 83 bc 24 c0 0e 00 00 00 74 09 e8 44 ef a9 f7 90 <0f> 0b
90 e8 3b ef a9 f7 48 8d 7b 38 e8 12 a3 96 f7 48 89 df be 0f
RSP: 0018:ffffc90004267bd8 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff88803c710000 RCX: ffffffff89e4d844
RDX: ffff88803c52c880 RSI: ffffffff89e4d87c RDI: ffff88803c578ec0
RBP: 0000000000000001 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: ffff88803c578000
R13: ffff88803c710000 R14: ffff88803c710008 R15: dead000000000100
FS: 00007f7a855ee6c0(0000) GS:ffff88806a800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f7a85689938 CR3: 000000003c492000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
ip6mr_rules_exit+0x176/0x2d0 net/ipv6/ip6mr.c:283
ip6mr_net_exit_batch+0x53/0xa0 net/ipv6/ip6mr.c:1388
ops_exit_list+0x128/0x180 net/core/net_namespace.c:177
setup_net+0x4fe/0x860 net/core/net_namespace.c:394
copy_net_ns+0x2b4/0x6b0 net/core/net_namespace.c:500
create_new_namespaces+0x3ea/0xad0 kernel/nsproxy.c:110
unshare_nsproxy_namespaces+0xc0/0x1f0 kernel/nsproxy.c:228
ksys_unshare+0x45d/0xa40 kernel/fork.c:3334
__do_sys_unshare kernel/fork.c:3405 [inline]
__se_sys_unshare kernel/fork.c:3403 [inline]
__x64_sys_unshare+0x31/0x40 kernel/fork.c:3403
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f7a856332d9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 18 00 00 90 48 89 f8 48
89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d
01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f7a855ee238 EFLAGS: 00000246 ORIG_RAX: 0000000000000110
RAX: ffffffffffffffda RBX: 00007f7a856bd308 RCX: 00007f7a856332d9
RDX: 00007f7a8560f8c6 RSI: 0000000000000000 RDI: 0000000062040200
RBP: 00007f7a856bd300 R08: 00007fff932160a7 R09: 00007f7a855ee6c0
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f7a856bd30c
R13: 0000000000000000 R14: 00007fff93215fc0 R15: 00007fff932160a8
</TASK>

The root cause is a network namespace creation failing after successful
initialization of the ipmr subsystem. Such a case is not currently
matched by the ipmr_can_free_table() helper.

New namespaces are zeroed on allocation and inserted into net ns list
only after successful creation; when deleting an ipmr table, the list
next pointer can be NULL only on netns initialization failure.

Update the ipmr_can_free_table() checks leveraging such condition.

Reported-by: Eric Dumazet <edumazet@google.com>
Reported-by: syzbot+6e8cb445d4b43d006e0c@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=6e8cb445d4b43d006e0c
Fixes: 11b6e701bce9 ("ipmr: add debug check for mr table cleanup")
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/8bde975e21bbca9d9c27e36209b2dd4f1d7a3f00.1733212078.git.pabeni@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
7 months agoksmbd: align aux_payload_buf to avoid OOB reads in cryptographic operations
Norbert Szetei [Sat, 30 Nov 2024 15:56:14 +0000 (16:56 +0100)]
ksmbd: align aux_payload_buf to avoid OOB reads in cryptographic operations

The aux_payload_buf allocation in SMB2 read is performed without ensuring
alignment, which could result in out-of-bounds (OOB) reads during
cryptographic operations such as crypto_xor or ghash. This patch aligns
the allocation of aux_payload_buf to prevent these issues.
(Note that to add this patch to stable would require modifications due
to recent patch "ksmbd: use __GFP_RETRY_MAYFAIL")

Signed-off-by: Norbert Szetei <norbert@doyensec.com>
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
7 months agonetfilter: nft_set_hash: skip duplicated elements pending gc run
Pablo Neira Ayuso [Sun, 1 Dec 2024 23:04:49 +0000 (00:04 +0100)]
netfilter: nft_set_hash: skip duplicated elements pending gc run

rhashtable does not provide stable walk, duplicated elements are
possible in case of resizing. I considered that checking for errors when
calling rhashtable_walk_next() was sufficient to detect the resizing.
However, rhashtable_walk_next() returns -EAGAIN only at the end of the
iteration, which is too late, because a gc work containing duplicated
elements could have been already scheduled for removal to the worker.

Add a u32 gc worker sequence number per set, bump it on every workqueue
run. Annotate gc worker sequence number on the expired element. Use it
to skip those already seen in this gc workqueue run.

Note that this new field is never reset in case gc transaction fails, so
next gc worker run on the expired element overrides it. Wraparound of gc
worker sequence number should not be an issue with stale gc worker
sequence number in the element, that would just postpone the element
removal in one gc run.

Note that it is not possible to use flags to annotate that element is
pending gc run to detect duplicates, given that gc transaction can be
invalidated in case of update from the control plane, therefore, not
allowing to clear such flag.

On x86_64, pahole reports no changes in the size of nft_rhash_elem.

Fixes: f6c383b8c31a ("netfilter: nf_tables: adapt set backend to use GC transaction API")
Reported-by: Laurent Fasnacht <laurent.fasnacht@proton.ch>
Tested-by: Laurent Fasnacht <laurent.fasnacht@proton.ch>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
7 months agoMerge tag 'loongarch-fixes-6.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Wed, 4 Dec 2024 18:31:37 +0000 (10:31 -0800)]
Merge tag 'loongarch-fixes-6.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson

Pull LoongArch fixes from Huacai Chen:
 "Fix bugs about EFI screen info, hugetlb pte clear and Lockdep-RCU
  splat in KVM, plus some trival cleanups"

* tag 'loongarch-fixes-6.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson:
  LoongArch: KVM: Protect kvm_io_bus_{read,write}() with SRCU
  LoongArch: KVM: Protect kvm_check_requests() with SRCU
  LoongArch: BPF: Adjust the parameter of emit_jirl()
  LoongArch: Add architecture specific huge_pte_clear()
  LoongArch/irq: Use seq_put_decimal_ull_width() for decimal values
  LoongArch: Fix reserving screen info memory for above-4G firmware

7 months agoMerge tag 'platform-drivers-x86-v6.13-2' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Wed, 4 Dec 2024 18:28:30 +0000 (10:28 -0800)]
Merge tag 'platform-drivers-x86-v6.13-2' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86

Pull x86 platform driver fixes from Ilpo Järvinen:

 - asus-nb-wmi: Silence unknown event warning when charger is plugged in

 - asus-wmi: Handle return code variations during thermal policy writing
   graciously

 - samsung-laptop: Correct module description

* tag 'platform-drivers-x86-v6.13-2' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86:
  platform/x86: asus-nb-wmi: Ignore unknown event 0xCF
  platform/x86: asus-wmi: Ignore return value when writing thermal policy
  platform/x86: samsung-laptop: Match MODULE_DESCRIPTION() to functionality

7 months agotracing: Fix cmp_entries_dup() to respect sort() comparison rules
Kuan-Wei Chiu [Tue, 3 Dec 2024 20:22:28 +0000 (04:22 +0800)]
tracing: Fix cmp_entries_dup() to respect sort() comparison rules

The cmp_entries_dup() function used as the comparator for sort()
violated the symmetry and transitivity properties required by the
sorting algorithm. Specifically, it returned 1 whenever memcmp() was
non-zero, which broke the following expectations:

* Symmetry: If x < y, then y > x.
* Transitivity: If x < y and y < z, then x < z.

These violations could lead to incorrect sorting and failure to
correctly identify duplicate elements.

Fix the issue by directly returning the result of memcmp(), which
adheres to the required comparison properties.

Cc: stable@vger.kernel.org
Fixes: 08d43a5fa063 ("tracing: Add lock-free tracing_map")
Link: https://lore.kernel.org/20241203202228.1274403-1-visitorckw@gmail.com
Signed-off-by: Kuan-Wei Chiu <visitorckw@gmail.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
7 months agonetfilter: ipset: Hold module reference while requesting a module
Phil Sutter [Fri, 29 Nov 2024 15:30:38 +0000 (16:30 +0100)]
netfilter: ipset: Hold module reference while requesting a module

User space may unload ip_set.ko while it is itself requesting a set type
backend module, leading to a kernel crash. The race condition may be
provoked by inserting an mdelay() right after the nfnl_unlock() call.

Fixes: a7b4f989a629 ("netfilter: ipset: IP set core support")
Signed-off-by: Phil Sutter <phil@nwl.cc>
Acked-by: Jozsef Kadlecsik <kadlec@netfilter.org>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
7 months agospi: intel: Add Panther Lake SPI controller support
Aapo Vienamo [Wed, 4 Dec 2024 08:02:08 +0000 (10:02 +0200)]
spi: intel: Add Panther Lake SPI controller support

The Panther Lake SPI controllers are compatible with the Cannon Lake
controllers. Add support for following SPI controller device IDs:
 - H-series: 0xe323
 - P-series: 0xe423
 - U-series: 0xe423

Signed-off-by: Aapo Vienamo <aapo.vienamo@iki.fi>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Link: https://patch.msgid.link/20241204080208.1036537-1-mika.westerberg@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
7 months agonet: sched: fix ordering of qlen adjustment
Lion Ackermann [Mon, 2 Dec 2024 16:22:57 +0000 (17:22 +0100)]
net: sched: fix ordering of qlen adjustment

Changes to sch->q.qlen around qdisc_tree_reduce_backlog() need to happen
_before_ a call to said function because otherwise it may fail to notify
parent qdiscs when the child is about to become empty.

Signed-off-by: Lion Ackermann <nnamrec@gmail.com>
Acked-by: Toke Høiland-Jørgensen <toke@toke.dk>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 months agonet: sched: fix erspan_opt settings in cls_flower
Xin Long [Mon, 2 Dec 2024 15:21:38 +0000 (10:21 -0500)]
net: sched: fix erspan_opt settings in cls_flower

When matching erspan_opt in cls_flower, only the (version, dir, hwid)
fields are relevant. However, in fl_set_erspan_opt() it initializes
all bits of erspan_opt and its mask to 1. This inadvertently requires
packets to match not only the (version, dir, hwid) fields but also the
other fields that are unexpectedly set to 1.

This patch resolves the issue by ensuring that only the (version, dir,
hwid) fields are configured in fl_set_erspan_opt(), leaving the other
fields to 0 in erspan_opt.

Fixes: 79b1011cb33d ("net: sched: allow flower to match erspan options")
Reported-by: Shuang Li <shuali@redhat.com>
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Reviewed-by: Cong Wang <cong.wang@bytedance.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
7 months agoethtool: Fix access to uninitialized fields in set RXNFC command
Gal Pressman [Mon, 2 Dec 2024 16:48:05 +0000 (18:48 +0200)]
ethtool: Fix access to uninitialized fields in set RXNFC command

The check for non-zero ring with RSS is only relevant for
ETHTOOL_SRXCLSRLINS command, in other cases the check tries to access
memory which was not initialized by the userspace tool. Only perform the
check in case of ETHTOOL_SRXCLSRLINS.

Without this patch, filter deletion (for example) could statistically
result in a false error:
  # ethtool --config-ntuple eth3 delete 484
  rmgr: Cannot delete RX class rule: Invalid argument
  Cannot delete classification rule

Fixes: 9e43ad7a1ede ("net: ethtool: only allow set_rxnfc with rss + ring_cookie if driver opts in")
Link: https://lore.kernel.org/netdev/871a9ecf-1e14-40dd-bbd7-e90c92f89d47@nvidia.com/
Reviewed-by: Dragos Tatulea <dtatulea@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Gal Pressman <gal@nvidia.com>
Reviewed-by: Edward Cree <ecree.xilinx@gmail.com>
Link: https://patch.msgid.link/20241202164805.1637093-1-gal@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
7 months agoRevert "udp: avoid calling sock_def_readable() if possible"
Fernando Fernandez Mancera [Mon, 2 Dec 2024 15:56:08 +0000 (15:56 +0000)]
Revert "udp: avoid calling sock_def_readable() if possible"

This reverts commit 612b1c0dec5bc7367f90fc508448b8d0d7c05414. On a
scenario with multiple threads blocking on a recvfrom(), we need to call
sock_def_readable() on every __udp_enqueue_schedule_skb() otherwise the
threads won't be woken up as __skb_wait_for_more_packets() is using
prepare_to_wait_exclusive().

Link: https://bugzilla.redhat.com/2308477
Fixes: 612b1c0dec5b ("udp: avoid calling sock_def_readable() if possible")
Signed-off-by: Fernando Fernandez Mancera <ffmancera@riseup.net>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20241202155620.1719-1-ffmancera@riseup.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
7 months agonet: Make napi_hash_lock irq safe
Joe Damato [Mon, 2 Dec 2024 18:21:02 +0000 (18:21 +0000)]
net: Make napi_hash_lock irq safe

Make napi_hash_lock IRQ safe. It is used during the control path, and is
taken and released in napi_hash_add and napi_hash_del, which will
typically be called by calls to napi_enable and napi_disable.

This change avoids a deadlock in pcnet32 (and other any other drivers
which follow the same pattern):

 CPU 0:
 pcnet32_open
    spin_lock_irqsave(&lp->lock, ...)
      napi_enable
        napi_hash_add <- before this executes, CPU 1 proceeds
          spin_lock(napi_hash_lock)
       [...]
    spin_unlock_irqrestore(&lp->lock, flags);

 CPU 1:
   pcnet32_close
     napi_disable
       napi_hash_del
         spin_lock(napi_hash_lock)
          < INTERRUPT >
            pcnet32_interrupt
              spin_lock(lp->lock) <- DEADLOCK

Changing the napi_hash_lock to be IRQ safe prevents the IRQ from firing
on CPU 1 until napi_hash_lock is released, preventing the deadlock.

Cc: stable@vger.kernel.org
Fixes: 86e25f40aa1e ("net: napi: Add napi_config")
Reported-by: Guenter Roeck <linux@roeck-us.net>
Closes: https://lore.kernel.org/netdev/85dd4590-ea6b-427d-876a-1d8559c7ad82@roeck-us.net/
Suggested-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Joe Damato <jdamato@fastly.com>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20241202182103.363038-1-jdamato@fastly.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
7 months agodrm/amdgpu: rework resume handling for display (v2)
Alex Deucher [Mon, 25 Nov 2024 18:59:09 +0000 (13:59 -0500)]
drm/amdgpu: rework resume handling for display (v2)

Split resume into a 3rd step to handle displays when DCC is
enabled on DCN 4.0.1.  Move display after the buffer funcs
have been re-enabled so that the GPU will do the move and
properly set the DCC metadata for DCN.

v2: fix fence irq resume ordering

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org # 6.11.x
7 months agoMerge tag 'drm-misc-fixes-2024-11-28' of https://gitlab.freedesktop.org/drm/misc...
Dave Airlie [Tue, 3 Dec 2024 23:13:03 +0000 (09:13 +1000)]
Merge tag 'drm-misc-fixes-2024-11-28' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-fixes

Short summary of fixes pull:

dma-buf:
- Fix dma_fence_array_signaled() to ensure forward progress

dp_mst:
- Fix MST sideband message body length check

sti:
- Add __iomem for mixer_dbg_mxn()'s parameter

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20241128135958.GA244627@linux.fritz.box
7 months agoMerge tag 'drm-misc-fixes-2024-11-21' of https://gitlab.freedesktop.org/drm/misc...
Dave Airlie [Tue, 3 Dec 2024 23:12:31 +0000 (09:12 +1000)]
Merge tag 'drm-misc-fixes-2024-11-21' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-fixes

Short summary of fixes pull:

dma-fence:
- Fix reference leak on fence-merge failure path
- Simplify fence merging with kernel's sort()

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20241121131810.GA54208@linux.fritz.box
7 months agonetfilter: nft_inner: incorrect percpu area handling under softirq
Pablo Neira Ayuso [Wed, 27 Nov 2024 11:46:54 +0000 (12:46 +0100)]
netfilter: nft_inner: incorrect percpu area handling under softirq

Softirq can interrupt ongoing packet from process context that is
walking over the percpu area that contains inner header offsets.

Disable bh and perform three checks before restoring the percpu inner
header offsets to validate that the percpu area is valid for this
skbuff:

1) If the NFT_PKTINFO_INNER_FULL flag is set on, then this skbuff
   has already been parsed before for inner header fetching to
   register.

2) Validate that the percpu area refers to this skbuff using the
   skbuff pointer as a cookie. If there is a cookie mismatch, then
   this skbuff needs to be parsed again.

3) Finally, validate if the percpu area refers to this tunnel type.

Only after these three checks the percpu area is restored to a on-stack
copy and bh is enabled again.

After inner header fetching, the on-stack copy is stored back to the
percpu area.

Fixes: 3a07327d10a0 ("netfilter: nft_inner: support for inner tunnel header matching")
Reported-by: syzbot+84d0441b9860f0d63285@syzkaller.appspotmail.com
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
7 months agoMerge tag 'for-6.13-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave...
Linus Torvalds [Tue, 3 Dec 2024 19:02:17 +0000 (11:02 -0800)]
Merge tag 'for-6.13-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux

Pull btrfs fixes from David Sterba:

 - add lockdep annotations for io_uring/encoded read integration, inode
   lock is held when returning to userspace

 - properly reflect experimental config option to sysfs

 - handle NULL root in case the rescue mode accepts invalid/damaged tree
   roots (rescue=ibadroot)

 - regression fix of a deadlock between transaction and extent locks

 - fix pending bio accounting bug in encoded read ioctl

 - fix NOWAIT mode when checking references for NOCOW files

 - fix use-after-free in a rb-tree cleanup in ref-verify debugging tool

* tag 'for-6.13-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
  btrfs: fix lockdep warnings on io_uring encoded reads
  btrfs: ref-verify: fix use-after-free after invalid ref action
  btrfs: add a sanity check for btrfs root in btrfs_search_slot()
  btrfs: don't loop for nowait writes when checking for cross references
  btrfs: sysfs: advertise experimental features only if CONFIG_BTRFS_EXPERIMENTAL=y
  btrfs: fix deadlock between transaction commits and extent locks
  btrfs: fix use-after-free in btrfs_encoded_read_endio()

7 months agoMerge tag 'fs_for_v6.13-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/jack...
Linus Torvalds [Tue, 3 Dec 2024 18:50:22 +0000 (10:50 -0800)]
Merge tag 'fs_for_v6.13-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs

Pull quota and udf fixes from Jan Kara:
 "Two small UDF fixes for better handling of corrupted filesystem and a
  quota fix to fix handling of filesystem freezing"

* tag 'fs_for_v6.13-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
  udf: Verify inode link counts before performing rename
  udf: Skip parent dir link count update if corrupted
  quota: flush quota_release_work upon quota writeback

7 months agoMerge tag 'xfs-fixes-6.13-rc2' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Linus Torvalds [Tue, 3 Dec 2024 18:46:49 +0000 (10:46 -0800)]
Merge tag 'xfs-fixes-6.13-rc2' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux

Pull xfs fixes from Carlos Maiolino:

 - Use xchg() in xlog_cil_insert_pcp_aggregate()

 - Fix ABBA deadlock on a race between mount and log shutdown

 - Fix quota softlimit incoherency on delalloc

 - Fix sparse inode limits on runt AG

 - remove unknown compat feature checks in SB write valdation

 - Eliminate a lockdep false positive

* tag 'xfs-fixes-6.13-rc2' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
  xfs: don't call xfs_bmap_same_rtgroup in xfs_bmap_add_extent_hole_delay
  xfs: Use xchg() in xlog_cil_insert_pcp_aggregate()
  xfs: prevent mount and log shutdown race
  xfs: delalloc and quota softlimit timers are incoherent
  xfs: fix sparse inode limits on runt AG
  xfs: remove unknown compat feature check in superblock write validation
  xfs: eliminate lockdep false positives in xfs_attr_shortform_list

7 months agoigb: Fix potential invalid memory access in igb_init_module()
Yuan Can [Wed, 23 Oct 2024 12:10:48 +0000 (20:10 +0800)]
igb: Fix potential invalid memory access in igb_init_module()

The pci_register_driver() can fail and when this happened, the dca_notifier
needs to be unregistered, otherwise the dca_notifier can be called when
igb fails to install, resulting to invalid memory access.

Fixes: bbd98fe48a43 ("igb: Fix DCA errors and do not use context index for 82576")
Signed-off-by: Yuan Can <yuancan@huawei.com>
Tested-by: Pucha Himasekhar Reddy <himasekharx.reddy.pucha@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
7 months agoixgbe: Correct BASE-BX10 compliance code
Tore Amundsen [Fri, 15 Nov 2024 14:17:36 +0000 (14:17 +0000)]
ixgbe: Correct BASE-BX10 compliance code

SFF-8472 (section 5.4 Transceiver Compliance Codes) defines bit 6 as
BASE-BX10. Bit 6 means a value of 0x40 (decimal 64).

The current value in the source code is 0x64, which appears to be a
mix-up of hex and decimal values. A value of 0x64 (binary 01100100)
incorrectly sets bit 2 (1000BASE-CX) and bit 5 (100BASE-FX) as well.

Fixes: 1b43e0d20f2d ("ixgbe: Add 1000BASE-BX support")
Signed-off-by: Tore Amundsen <tore@amundsen.org>
Reviewed-by: Paul Menzel <pmenzel@molgen.mpg.de>
Acked-by: Ernesto Castellotti <ernesto@castellotti.net>
Tested-by: Pucha Himasekhar Reddy <himasekharx.reddy.pucha@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
7 months agoixgbe: downgrade logging of unsupported VF API version to debug
Jacob Keller [Fri, 1 Nov 2024 23:05:43 +0000 (16:05 -0700)]
ixgbe: downgrade logging of unsupported VF API version to debug

The ixgbe PF driver logs an info message when a VF attempts to negotiate an
API version which it does not support:

  VF 0 requested invalid api version 6

The ixgbevf driver attempts to load with mailbox API v1.5, which is
required for best compatibility with other hosts such as the ESX VMWare PF.

The Linux PF only supports API v1.4, and does not currently have support
for the v1.5 API.

The logged message can confuse users, as the v1.5 API is valid, but just
happens to not currently be supported by the Linux PF.

Downgrade the info message to a debug message, and fix the language to
use 'unsupported' instead of 'invalid' to improve message clarity.

Long term, we should investigate whether the improvements in the v1.5 API
make sense for the Linux PF, and if so implement them properly. This may
require yet another API version to resolve issues with negotiating IPSEC
offload support.

Fixes: 339f28964147 ("ixgbevf: Add support for new mailbox communication between PF and VF")
Reported-by: Yifei Liu <yifei.l.liu@oracle.com>
Link: https://lore.kernel.org/intel-wired-lan/20240301235837.3741422-1-yifei.l.liu@oracle.com/
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Tested-by: Rafal Romanowski <rafal.romanowski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
7 months agoixgbevf: stop attempting IPSEC offload on Mailbox API 1.5
Jacob Keller [Fri, 1 Nov 2024 23:05:42 +0000 (16:05 -0700)]
ixgbevf: stop attempting IPSEC offload on Mailbox API 1.5

Commit 339f28964147 ("ixgbevf: Add support for new mailbox communication
between PF and VF") added support for v1.5 of the PF to VF mailbox
communication API. This commit mistakenly enabled IPSEC offload for API
v1.5.

No implementation of the v1.5 API has support for IPSEC offload. This
offload is only supported by the Linux PF as mailbox API v1.4. In fact, the
v1.5 API is not implemented in any Linux PF.

Attempting to enable IPSEC offload on a PF which supports v1.5 API will not
work. Only the Linux upstream ixgbe and ixgbevf support IPSEC offload, and
only as part of the v1.4 API.

Fix the ixgbevf Linux driver to stop attempting IPSEC offload when
the mailbox API does not support it.

The existing API design choice makes it difficult to support future API
versions, as other non-Linux hosts do not implement IPSEC offload. If we
add support for v1.5 to the Linux PF, then we lose support for IPSEC
offload.

A full solution likely requires a new mailbox API with a proper negotiation
to check that IPSEC is actually supported by the host.

Fixes: 339f28964147 ("ixgbevf: Add support for new mailbox communication between PF and VF")
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Tested-by: Rafal Romanowski <rafal.romanowski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
7 months agoidpf: set completion tag for "empty" bufs associated with a packet
Joshua Hay [Mon, 7 Oct 2024 20:24:35 +0000 (13:24 -0700)]
idpf: set completion tag for "empty" bufs associated with a packet

Commit d9028db618a6 ("idpf: convert to libeth Tx buffer completion")
inadvertently removed code that was necessary for the tx buffer cleaning
routine to iterate over all buffers associated with a packet.

When a frag is too large for a single data descriptor, it will be split
across multiple data descriptors. This means the frag will span multiple
buffers in the buffer ring in order to keep the descriptor and buffer
ring indexes aligned. The buffer entries in the ring are technically
empty and no cleaning actions need to be performed. These empty buffers
can precede other frags associated with the same packet. I.e. a single
packet on the buffer ring can look like:

buf[0]=skb0.frag0
buf[1]=skb0.frag1
buf[2]=empty
buf[3]=skb0.frag2

The cleaning routine iterates through these buffers based on a matching
completion tag. If the completion tag is not set for buf2, the loop will
end prematurely. Frag2 will be left uncleaned and next_to_clean will be
left pointing to the end of packet, which will break the cleaning logic
for subsequent cleans. This consequently leads to tx timeouts.

Assign the empty bufs the same completion tag for the packet to ensure
the cleaning routine iterates over all of the buffers associated with
the packet.

Fixes: d9028db618a6 ("idpf: convert to libeth Tx buffer completion")
Signed-off-by: Joshua Hay <joshua.a.hay@intel.com>
Acked-by: Alexander Lobakin <aleksander.lobakin@intel.com>
Reviewed-by: Madhu chittim <madhu.chittim@intel.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Tested-by: Krishneil Singh <krishneil.k.singh@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
7 months agoice: Fix VLAN pruning in switchdev mode
Marcin Szycik [Mon, 4 Nov 2024 18:49:09 +0000 (19:49 +0100)]
ice: Fix VLAN pruning in switchdev mode

In switchdev mode the uplink VSI should receive all unmatched packets,
including VLANs. Therefore, VLAN pruning should be disabled if uplink is
in switchdev mode. It is already being done in ice_eswitch_setup_env(),
however the addition of ice_up() in commit 44ba608db509 ("ice: do
switchdev slow-path Rx using PF VSI") caused VLAN pruning to be
re-enabled after disabling it.

Add a check to ice_set_vlan_filtering_features() to ensure VLAN
filtering will not be enabled if uplink is in switchdev mode. Note that
ice_is_eswitch_mode_switchdev() is being used instead of
ice_is_switchdev_running(), as the latter would only return true after
the whole switchdev setup completes.

Fixes: 44ba608db509 ("ice: do switchdev slow-path Rx using PF VSI")
Reviewed-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Signed-off-by: Marcin Szycik <marcin.szycik@linux.intel.com>
Tested-by: Priya Singh <priyax.singh@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
7 months agoice: Fix NULL pointer dereference in switchdev
Wojciech Drewek [Tue, 29 Oct 2024 09:42:59 +0000 (10:42 +0100)]
ice: Fix NULL pointer dereference in switchdev

Commit 608a5c05c39b ("virtchnl: support queue rate limit and quanta
size configuration") introduced new virtchnl ops:
- get_qos_caps
- cfg_q_bw
- cfg_q_quanta

New ops were added to ice_virtchnl_dflt_ops, in
commit 015307754a19 ("ice: Support VF queue rate limit and quanta
size configuration"), but not to the ice_virtchnl_repr_ops. Because
of that, if we get one of those messages in switchdev mode we end up
with NULL pointer dereference:

[ 1199.794701] BUG: kernel NULL pointer dereference, address: 0000000000000000
[ 1199.794804] Workqueue: ice ice_service_task [ice]
[ 1199.794878] RIP: 0010:0x0
[ 1199.795027] Call Trace:
[ 1199.795033]  <TASK>
[ 1199.795039]  ? __die+0x20/0x70
[ 1199.795051]  ? page_fault_oops+0x140/0x520
[ 1199.795064]  ? exc_page_fault+0x7e/0x270
[ 1199.795074]  ? asm_exc_page_fault+0x22/0x30
[ 1199.795086]  ice_vc_process_vf_msg+0x6e5/0xd30 [ice]
[ 1199.795165]  __ice_clean_ctrlq+0x734/0x9d0 [ice]
[ 1199.795207]  ice_service_task+0xccf/0x12b0 [ice]
[ 1199.795248]  process_one_work+0x21a/0x620
[ 1199.795260]  worker_thread+0x18d/0x330
[ 1199.795269]  ? __pfx_worker_thread+0x10/0x10
[ 1199.795279]  kthread+0xec/0x120
[ 1199.795288]  ? __pfx_kthread+0x10/0x10
[ 1199.795296]  ret_from_fork+0x2d/0x50
[ 1199.795305]  ? __pfx_kthread+0x10/0x10
[ 1199.795312]  ret_from_fork_asm+0x1a/0x30
[ 1199.795323]  </TASK>

Fixes: 015307754a19 ("ice: Support VF queue rate limit and quanta size configuration")
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Reviewed-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Signed-off-by: Wojciech Drewek <wojciech.drewek@intel.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Tested-by: Sujai Buvaneswaran <sujai.buvaneswaran@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
7 months agoice: fix PHY timestamp extraction for ETH56G
Przemyslaw Korba [Fri, 15 Nov 2024 12:25:37 +0000 (13:25 +0100)]
ice: fix PHY timestamp extraction for ETH56G

Fix incorrect PHY timestamp extraction for ETH56G.
It's better to use FIELD_PREP() than manual shift.

Fixes: 7cab44f1c35f ("ice: Introduce ETH56G PHY model for E825C products")
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: Przemyslaw Korba <przemyslaw.korba@intel.com>
Tested-by: Pucha Himasekhar Reddy <himasekharx.reddy.pucha@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
7 months agoice: fix PHY Clock Recovery availability check
Arkadiusz Kubalewski [Mon, 30 Sep 2024 18:36:22 +0000 (20:36 +0200)]
ice: fix PHY Clock Recovery availability check

To check if PHY Clock Recovery mechanic is available for a device, there
is a need to verify if given PHY is available within the netlist, but the
netlist node type used for the search is wrong, also the search context
shall be specified.

Modify the search function to allow specifying the context in the
search.

Use the PHY node type instead of CLOCK CONTROLLER type, also use proper
search context which for PHY search is PORT, as defined in E810
Datasheet [1] ('3.3.8.2.4 Node Part Number and Node Options (0x0003)' and
'Table 3-105. Program Topology Device NVM Admin Command').

[1] https://cdrdv2.intel.com/v1/dl/getContent/613875?explicitVersion=true

Fixes: 91e43ca0090b ("ice: fix linking when CONFIG_PTP_1588_CLOCK=n")
Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>
Signed-off-by: Arkadiusz Kubalewski <arkadiusz.kubalewski@intel.com>
Tested-by: Pucha Himasekhar Reddy <himasekharx.reddy.pucha@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
7 months agoMAINTAINERS: Add CCA and pKVM CoCO guest support to the ARM64 entry
Will Deacon [Mon, 2 Dec 2024 14:57:30 +0000 (14:57 +0000)]
MAINTAINERS: Add CCA and pKVM CoCO guest support to the ARM64 entry

Commits 7999edc484ca ("virt: arm-cca-guest: TSM_REPORT support for
realm") and a06c3fad49a5 ("drivers/virt: pkvm: Add initial support for
running as a protected guest") added arm64 guest-side support for
running in CCA and pKVM confidential computing environments
respectively.

Unfortunately, these changes were not accompanied by a MAINTAINERS
entry and so aren't automatically picked up by the get_maintainer.pl
script. Since the initial support was merged via the arm64 tree, extend
the ARM64 entry to cover the two new directories.

Cc: Marc Zyngier <maz@kernel.org>
Cc: Oliver Upton <oliver.upton@linux.dev>
Cc: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Will Deacon <will@kernel.org>
Acked-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Link: https://lore.kernel.org/r/20241202145731.6422-3-will@kernel.org
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
7 months agodrivers/virt: pkvm: Don't fail ioremap() call if MMIO_GUARD fails
Will Deacon [Mon, 2 Dec 2024 14:57:29 +0000 (14:57 +0000)]
drivers/virt: pkvm: Don't fail ioremap() call if MMIO_GUARD fails

Calling the MMIO_GUARD hypercall from guests which have not been
enrolled (e.g. because they are running without pvmfw) results in
-EINVAL being returned. In this case, MMIO_GUARD is not active
and so we can simply proceed with the normal ioremap() routine.

Don't fail ioremap() if MMIO_GUARD fails; instead WARN_ON_ONCE()
to highlight that the pvm environment is slightly wonky.

Fixes: 0f1269495800 ("drivers/virt: pkvm: Intercept ioremap using pKVM MMIO_GUARD hypercall")
Signed-off-by: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/20241202145731.6422-2-will@kernel.org
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
7 months agoarm64: patching: avoid early page_to_phys()
Mark Rutland [Mon, 2 Dec 2024 17:03:59 +0000 (17:03 +0000)]
arm64: patching: avoid early page_to_phys()

When arm64 is configured with CONFIG_DEBUG_VIRTUAL=y, a warning is
printed from the patching code because patch_map(), e.g.

| ------------[ cut here ]------------
| WARNING: CPU: 0 PID: 0 at arch/arm64/kernel/patching.c:45 patch_map.constprop.0+0x120/0xd00
| CPU: 0 UID: 0 PID: 0 Comm: swapper Not tainted 6.13.0-rc1-00002-ge1a5d6c6be55 #1
| Hardware name: linux,dummy-virt (DT)
| pstate: 800003c5 (Nzcv DAIF -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
| pc : patch_map.constprop.0+0x120/0xd00
| lr : patch_map.constprop.0+0x120/0xd00
| sp : ffffa9bb312a79a0
| x29: ffffa9bb312a79a0 x28: 0000000000000001 x27: 0000000000000001
| x26: 0000000000000000 x25: 0000000000000000 x24: 00000000000402e8
| x23: ffffa9bb2c94c1c8 x22: ffffa9bb2c94c000 x21: ffffa9bb222e883c
| x20: 0000000000000002 x19: ffffc1ffc100ba40 x18: ffffa9bb2cf0f21c
| x17: 0000000000000006 x16: 0000000000000000 x15: 0000000000000004
| x14: 1ffff5376625b4ac x13: ffff753766a67fb8 x12: ffff753766919cd1
| x11: 0000000000000003 x10: 1ffff5376625b4c3 x9 : 1ffff5376625b4af
| x8 : ffff753766254f0a x7 : 0000000041b58ab3 x6 : ffff753766254f18
| x5 : ffffa9bb312d9bc0 x4 : 0000000000000000 x3 : ffffa9bb29bd90e4
| x2 : 0000000000000002 x1 : ffffa9bb312d9bc0 x0 : 0000000000000000
| Call trace:
|  patch_map.constprop.0+0x120/0xd00 (P)
|  patch_map.constprop.0+0x120/0xd00 (L)
|  __aarch64_insn_write+0xa8/0x120
|  aarch64_insn_patch_text_nosync+0x4c/0xb8
|  arch_jump_label_transform_queue+0x7c/0x100
|  jump_label_update+0x154/0x460
|  static_key_enable_cpuslocked+0x1d8/0x280
|  static_key_enable+0x2c/0x48
|  early_randomize_kstack_offset+0x104/0x168
|  do_early_param+0xe4/0x148
|  parse_args+0x3a4/0x838
|  parse_early_options+0x50/0x68
|  parse_early_param+0x58/0xe0
|  setup_arch+0x78/0x1f0
|  start_kernel+0xa0/0x530
|  __primary_switched+0x8c/0xa0
| irq event stamp: 0
| hardirqs last  enabled at (0): [<0000000000000000>] 0x0
| hardirqs last disabled at (0): [<0000000000000000>] 0x0
| softirqs last  enabled at (0): [<0000000000000000>] 0x0
| softirqs last disabled at (0): [<0000000000000000>] 0x0
| ---[ end trace 0000000000000000 ]---

The warning has been produced since commit:

  3e25d5a49f99b75b ("asm-generic: add an optional pfn_valid check to page_to_phys")

... which added a pfn_valid() check into page_to_phys(), and at this
point in boot pfn_valid() will always return false because the vmemmap
has not yet been initialized and there are no valid mem_sections yet.

Before that commit, the arithmetic performed by page_to_phys() would
give the expected physical address, though it is somewhat dubious to use
vmemmap addresses before the vmemmap has been initialized.

Aside from kernel image addresses, all executable code should be
allocated from execmem (where all allocations will fall within the
vmalloc area), and so there's no need for the fallback case when
CONFIG_EXECMEM=n.

Simplify patch_map() accordingly, directly converting kernel image
addresses and removing the redundant fallback case.

Fixes: 3e25d5a49f99 ("asm-generic: add an optional pfn_valid check to page_to_phys")
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Thomas Huth <thuth@redhat.com>
Cc: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/20241202170359.1475019-1-mark.rutland@arm.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
7 months agoiommu/arm-smmu-v3: Improve uAPI comment for IOMMU_HW_INFO_TYPE_ARM_SMMUV3
Jason Gunthorpe [Tue, 12 Nov 2024 18:51:36 +0000 (14:51 -0400)]
iommu/arm-smmu-v3: Improve uAPI comment for IOMMU_HW_INFO_TYPE_ARM_SMMUV3

Be specific about what fields should be accessed in the idr result and
give other guidance to the VMM on how it should generate the
vIDR. Discussion on the list, and review of the qemu implementation
understood this needs to be clearer and more detailed.

Link: https://patch.msgid.link/r/0-v1-191e5e24cec3+3b0-iommufd_smmuv3_hwinf_jgg@nvidia.com
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
7 months agoarm64: mm: Fix zone_dma_limit calculation
Yang Shi [Mon, 25 Nov 2024 17:16:50 +0000 (09:16 -0800)]
arm64: mm: Fix zone_dma_limit calculation

Commit ba0fb44aed47 ("dma-mapping: replace zone_dma_bits by
zone_dma_limit") and subsequent patches changed how zone_dma_limit is
calculated to allow a reduced ZONE_DMA even when RAM starts above 4GB.
Commit 122c234ef4e1 ("arm64: mm: keep low RAM dma zone") further fixed
this to ensure ZONE_DMA remains below U32_MAX if RAM starts below 4GB,
especially on platforms that do not have IORT or DT description of the
device DMA ranges. While zone boundaries calculation was fixed by the
latter commit, zone_dma_limit, used to determine the GFP_DMA flag in the
core code, was not updated. This results in excessive use of GFP_DMA and
unnecessary ZONE_DMA allocations on some platforms.

Update zone_dma_limit to match the actual upper bound of ZONE_DMA.

Fixes: ba0fb44aed47 ("dma-mapping: replace zone_dma_bits by zone_dma_limit")
Cc: <stable@vger.kernel.org> # 6.12.x
Reported-by: Yutang Jiang <jiangyutang@os.amperecomputing.com>
Tested-by: Yutang Jiang <jiangyutang@os.amperecomputing.com>
Signed-off-by: Yang Shi <yang@os.amperecomputing.com>
Link: https://lore.kernel.org/r/20241125171650.77424-1-yang@os.amperecomputing.com
[catalin.marinas@arm.com: some tweaking of the commit log]
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
7 months agomodule: Convert default symbol namespace to string literal
Masahiro Yamada [Tue, 3 Dec 2024 10:21:07 +0000 (19:21 +0900)]
module: Convert default symbol namespace to string literal

Commit cdd30ebb1b9f ("module: Convert symbol namespace to string
literal") only converted MODULE_IMPORT_NS() and EXPORT_SYMBOL_NS(),
leaving DEFAULT_SYMBOL_NAMESPACE as a macro expansion.

This commit converts DEFAULT_SYMBOL_NAMESPACE in the same way to avoid
annoyance for the default namespace as well.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Uwe Kleine-König <u.kleine-koenig@baylibre.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
7 months agodoc: module: revert misconversions for MODULE_IMPORT_NS()
Masahiro Yamada [Tue, 3 Dec 2024 10:21:06 +0000 (19:21 +0900)]
doc: module: revert misconversions for MODULE_IMPORT_NS()

This reverts the misconversions introduced by commit cdd30ebb1b9f
("module: Convert symbol namespace to string literal").

The affected descriptions refer to MODULE_IMPORT_NS() tags in general,
rather than suggesting the use of the empty string ("") as the
namespace.

Fixes: cdd30ebb1b9f ("module: Convert symbol namespace to string literal")
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>