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164,543 commits

Author SHA1 Message Date
Ard Biesheuvel
092071e0f6 vmlinux.lds: Include .data.rel[.local] into .data section
When running in -fPIC mode, the compiler may decide to emit statically
initialized data objects into .data.rel or .data.rel.local if they
contain absolute references to global or local objects, respectively,
which require fixing up at load time.

This distinction is irrelevant for the kernel, so fold .data.rel and
.data.rel.local into .data.

Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: David Woodhouse <dwmw@amazon.co.uk>
Cc: Dionna Amalie Glaze <dionnaglaze@google.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Juergen Gross <jgross@suse.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Kevin Loughlin <kevinloughlin@google.com>
Cc: Len Brown <len.brown@intel.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Link: https://lore.kernel.org/r/20250418141253.2601348-9-ardb+git@google.com
2025-04-22 09:12:00 +02:00
Linus Torvalds
b0c3bc35a5 Miscellaneous fixes:
- Fix BCM2712 irqchip driver Kconfig dependencies
    required on the Raspberry PI5
 
  - Fix spurious interrupts on RZ/G3E SMARC EVK systems
 
  - Fix crash regression on Sun/NIU hardware
 
  - Apply MSI driver quirk for Sun Neptune chips
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'irq-urgent-2025-04-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull misc irq fixes from Ingo Molnar:

 - Fix BCM2712 irqchip driver Kconfig dependencies required on the
   Raspberry PI5

 - Fix spurious interrupts on RZ/G3E SMARC EVK systems

 - Fix crash regression on Sun/NIU hardware

 - Apply MSI driver quirk for Sun Neptune chips

* tag 'irq-urgent-2025-04-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  irqchip/irq-bcm2712-mip: Enable driver when ARCH_BCM2835 is enabled
  irqchip/renesas-rzv2h: Prevent TINT spurious interrupt
  net/niu: Niu requires MSIX ENTRY_DATA fields touch before entry reads
  PCI/MSI: Add an option to write MSIX ENTRY_DATA before any reads
2025-04-18 13:28:41 -07:00
Linus Torvalds
b1011b2b45 io_uring-6.15-20250418
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Merge tag 'io_uring-6.15-20250418' of git://git.kernel.dk/linux

Pull io_uring fixes from Jens Axboe:

 - Correctly cap iov_iter->nr_segs for imports of registered buffers,
   both kbuf and normal ones.

   Three cleanups to make it saner first, then two fixes for each of the
   buffer types.

   This fixes a performance regression where partial buffer usage
   doesn't trim the tail number of segments, leading the block layer to
   iterate the IOs to check if it needs splitting.

 - Two patches tweaking the newly introduced zero-copy rx API, mostly to
   keep the API consistent once we add multiple interface queues per
   ring support in the 6.16 release.

 - zc rx unmapping fix for a dead device

* tag 'io_uring-6.15-20250418' of git://git.kernel.dk/linux:
  io_uring/zcrx: fix late dma unmap for a dead dev
  io_uring/rsrc: ensure segments counts are correct on kbuf buffers
  io_uring/rsrc: send exact nr_segs for fixed buffer
  io_uring/rsrc: refactor io_import_fixed
  io_uring/rsrc: separate kbuf offset adjustments
  io_uring/rsrc: don't skip offset calculation
  io_uring/zcrx: add pp to ifq conversion helper
  io_uring/zcrx: return ifq id to the user
2025-04-18 09:13:52 -07:00
Linus Torvalds
b5c6891b2c Including fixes from Bluetooth, CAN and Netfilter.
Current release - regressions:
 
  - 2 fixes for the netdev per-instance locking
 
  - batman-adv: fix double-hold of meshif when getting enabled
 
 Current release - new code bugs:
 
  - Bluetooth: increment TX timestamping tskey always for stream sockets
 
  - wifi: static analysis and build fixes for the new Intel sub-driver
 
 Previous releases - regressions:
 
  - net: fib_rules: fix iif / oif matching on L3 master (VRF) device
 
  - ipv6: add exception routes to GC list in rt6_insert_exception()
 
  - netfilter: conntrack: fix erroneous removal of offload bit
 
  - Bluetooth:
   - fix sending MGMT_EV_DEVICE_FOUND for invalid address
   - l2cap: process valid commands in too long frame
   - btnxpuart: Revert baudrate change in nxp_shutdown
 
 Previous releases - always broken:
 
  - ethtool: fix memory corruption during SFP FW flashing
 
  - eth: hibmcge: fixes for link and MTU handling, pause frames etc.
 
  - eth: igc: fixes for PTM (PCIe timestamping)
 
  - dsa: b53: enable BPDU reception for management port
 
 Misc:
 
  - fixes for Netlink protocol schemas
 
 Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-6.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Pull networking fixes from Jakub Kicinski:
 "Including fixes from Bluetooth, CAN and Netfilter.

  Current release - regressions:

   - two fixes for the netdev per-instance locking

   - batman-adv: fix double-hold of meshif when getting enabled

  Current release - new code bugs:

   - Bluetooth: increment TX timestamping tskey always for stream
     sockets

   - wifi: static analysis and build fixes for the new Intel sub-driver

  Previous releases - regressions:

   - net: fib_rules: fix iif / oif matching on L3 master (VRF) device

   - ipv6: add exception routes to GC list in rt6_insert_exception()

   - netfilter: conntrack: fix erroneous removal of offload bit

   - Bluetooth:
       - fix sending MGMT_EV_DEVICE_FOUND for invalid address
       - l2cap: process valid commands in too long frame
       - btnxpuart: Revert baudrate change in nxp_shutdown

  Previous releases - always broken:

   - ethtool: fix memory corruption during SFP FW flashing

   - eth:
       - hibmcge: fixes for link and MTU handling, pause frames etc
       - igc: fixes for PTM (PCIe timestamping)

   - dsa: b53: enable BPDU reception for management port

  Misc:

   - fixes for Netlink protocol schemas"

* tag 'net-6.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (81 commits)
  net: ethernet: mtk_eth_soc: revise QDMA packet scheduler settings
  net: ethernet: mtk_eth_soc: correct the max weight of the queue limit for 100Mbps
  net: ethernet: mtk_eth_soc: reapply mdc divider on reset
  net: ti: icss-iep: Fix possible NULL pointer dereference for perout request
  net: ti: icssg-prueth: Fix possible NULL pointer dereference inside emac_xmit_xdp_frame()
  net: ti: icssg-prueth: Fix kernel warning while bringing down network interface
  netfilter: conntrack: fix erronous removal of offload bit
  net: don't try to ops lock uninitialized devs
  ptp: ocp: fix start time alignment in ptp_ocp_signal_set
  net: dsa: avoid refcount warnings when ds->ops->tag_8021q_vlan_del() fails
  net: dsa: free routing table on probe failure
  net: dsa: clean up FDB, MDB, VLAN entries on unbind
  net: dsa: mv88e6xxx: fix -ENOENT when deleting VLANs and MST is unsupported
  net: dsa: mv88e6xxx: avoid unregistering devlink regions which were never registered
  net: txgbe: fix memory leak in txgbe_probe() error path
  net: bridge: switchdev: do not notify new brentries as changed
  net: b53: enable BPDU reception for management port
  netlink: specs: rt-neigh: prefix struct nfmsg members with ndm
  netlink: specs: rt-link: adjust mctp attribute naming
  netlink: specs: rtnetlink: attribute naming corrections
  ...
2025-04-17 11:45:30 -07:00
Linus Torvalds
e2516abf1c fwctl 6.15 first rc pull request
Three small changes from further build testing
 
 - Don't rely on the userspace uuid.h for the uapi header
 
 - Fix sparse warnings in pds
 
 - Typo in log message
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Merge tag 'for-linus-fwctl' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma

Pull fwctl fixes from Jason Gunthorpe:
 "Three small changes from further build testing:

   - Don't rely on the userspace uuid.h for the uapi header

   - Fix sparse warnings in pds

   - Typo in log message"

* tag 'for-linus-fwctl' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
  fwctl: Fix repeated device word in log message
  pds_fwctl: Fix type and endian complaints
  fwctl/cxl: Fix uuid_t usage in uapi
2025-04-17 10:19:24 -07:00
Linus Torvalds
8176e776cb sound fixes for 6.15-rc3
A collection of small fixes since the previous PR.  All are
 device-specific like quirks, new IDs, and other safe (or rather
 boring) changes.
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Merge tag 'sound-6.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "A collection of small fixes. All are device-specific like quirks, new
  IDs, and other safe (or rather boring) changes"

* tag 'sound-6.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  firmware: cs_dsp: test_bin_error: Fix uninitialized data used as fw version
  ASoC: codecs: Add of_match_table for aw888081 driver
  ASoC: fsl: fsl_qmc_audio: Reset audio data pointers on TRIGGER_START event
  mailmap: Add entry for Srinivas Kandagatla
  MAINTAINERS: use kernel.org alias
  ASoC: cs42l43: Reset clamp override on jack removal
  ALSA: hda/realtek - Fixed ASUS platform headset Mic issue
  ALSA: hda/cirrus_scodec_test: Don't select dependencies
  ALSA: azt2320: Replace deprecated strcpy() with strscpy()
  ASoC: hdmi-codec: use RTD ID instead of DAI ID for ELD entry
  ASoC: Intel: avs: Constrain path based on BE capabilities
  ALSA: hda/tas2781: Remove unnecessary NULL check before release_firmware()
  ASoC: Intel: avs: Fix null-ptr-deref in avs_component_probe()
  ASoC: fsl_asrc_dma: get codec or cpu dai from backend
  ASoC: qcom: Fix sc7280 lpass potential buffer overflow
  ASoC: dwc: always enable/disable i2s irqs
  ASoC: Intel: sof_sdw: Add quirk for Asus Zenbook S16
  ASoC: codecs:lpass-wsa-macro: Fix logic of enabling vi channels
  ASoC: codecs:lpass-wsa-macro: Fix vi feedback rate
2025-04-17 10:14:51 -07:00
Linus Torvalds
8499899816 platform-drivers-x86 for v6.15-3
Fixes:
 
  - amd/pmf: Fix STT limits
 
  - asus-laptop: Fix an uninitialized variable
 
  - intel_pmc_ipc: Allow building without ACPI
 
  - mlxbf-bootctl: Use sysfs_emit_at() in secure_boot_fuse_state_show()
 
  - msi-wmi-platform: Add locking to workaround ACPI firmware bug
 
 New HW support:
 
  - alienware-wmi-wmax:
    - Extended thermal control support to:
      - Alienware Area-51m R2
      - Alienware m16 R1
      - Alienware m16 R2
      - Dell G16 7630
      - Dell G5 5505 SE
    - G-Mode support to Alienware m16 R1
 
  - x86-android-tablets: Add Vexia Edu Atla 10 tablet 5V data
 
 The following is an automated shortlog grouped by driver:
 
 alienware-wmi-wmax:
  -  Add G-Mode support to Alienware m16 R1
  -  Extend support to more laptops
 
 amd: pmf:
  -  Fix STT limits
 
 asus-laptop:
  -  Fix an uninitialized variable
 
 intel_pmc_ipc:
  -  add option to build without ACPI
 
 mlxbf-bootctl:
  -  use sysfs_emit_at() in secure_boot_fuse_state_show()
 
 msi-wmi-platform:
  -  Rename "data" variable
  -  Workaround a ACPI firmware bug
 
 x86-android-tablets:
  -  Add "9v" to Vexia EDU ATLA 10 tablet symbols
  -  Add Vexia Edu Atla 10 tablet 5V data
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Merge tag 'platform-drivers-x86-v6.15-3' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86

Pull x86 platform drivers fixes from Ilpo Järvinen:
 "Fixes:
   - amd/pmf: Fix STT limits
   - asus-laptop: Fix an uninitialized variable
   - intel_pmc_ipc: Allow building without ACPI
   - mlxbf-bootctl: Use sysfs_emit_at() in secure_boot_fuse_state_show()
   - msi-wmi-platform: Add locking to workaround ACPI firmware bug

  New HW support:
   - alienware-wmi-wmax:
      - Extended thermal control support to:
         - Alienware Area-51m R2
         - Alienware m16 R1
         - Alienware m16 R2
         - Dell G16 7630
         - Dell G5 5505 SE
      - G-Mode support to Alienware m16 R1
   - x86-android-tablets: Add Vexia Edu Atla 10 tablet 5V data"

* tag 'platform-drivers-x86-v6.15-3' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86:
  platform/x86: msi-wmi-platform: Workaround a ACPI firmware bug
  platform/x86: msi-wmi-platform: Rename "data" variable
  platform/x86: alienware-wmi-wmax: Extend support to more laptops
  platform/x86: alienware-wmi-wmax: Add G-Mode support to Alienware m16 R1
  platform/x86: amd: pmf: Fix STT limits
  mlxbf-bootctl: use sysfs_emit_at() in secure_boot_fuse_state_show()
  platform/x86: x86-android-tablets: Add Vexia Edu Atla 10 tablet 5V data
  platform/x86: x86-android-tablets: Add "9v" to Vexia EDU ATLA 10 tablet symbols
  asus-laptop: Fix an uninitialized variable
  platform/x86: intel_pmc_ipc: add option to build without ACPI
2025-04-17 10:05:33 -07:00
Linus Torvalds
7adf8b1afc SCSI fixes on 20250417
Small drivers fixes, except for ufs which has two large updates, one
 for exposing the device level feature, which is a new addition to the
 device spec and the other reworking the exynos driver to fix coherence
 issues on some android phones.
 
 Signed-off-by: James E.J. Bottomley <James.Bottomley@HansenPartnership.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI fixes from James Bottomley:
 "Small drivers fixes, except for ufs which has two large updates, one
  for exposing the device level feature, which is a new addition to the
  device spec and the other reworking the exynos driver to fix coherence
  issues on some android phones"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: megaraid_sas: Driver version update to 07.734.00.00-rc1
  scsi: megaraid_sas: Block zero-length ATA VPD inquiry
  scsi: scsi_transport_srp: Replace min/max nesting with clamp()
  scsi: ufs: core: Add device level exception support
  scsi: ufs: core: Rename ufshcd_wb_presrv_usrspc_keep_vcc_on()
  scsi: smartpqi: Use is_kdump_kernel() to check for kdump
  scsi: pm80xx: Set phy_attached to zero when device is gone
  scsi: ufs: exynos: gs101: Put UFS device in reset on .suspend()
  scsi: ufs: exynos: Move phy calls to .exit() callback
  scsi: ufs: exynos: Enable PRDT pre-fetching with UFSHCD_CAP_CRYPTO
  scsi: ufs: exynos: Ensure consistent phy reference counts
  scsi: ufs: exynos: Disable iocc if dma-coherent property isn't set
  scsi: ufs: exynos: Move UFS shareability value to drvdata
  scsi: ufs: exynos: Ensure pre_link() executes before exynos_ufs_phy_init()
  scsi: iscsi: Fix missing scsi_host_put() in error path
  scsi: ufs: core: Fix a race condition related to device commands
  scsi: hisi_sas: Fix I/O errors caused by hardware port ID changes
  scsi: hisi_sas: Enable force phy when SATA disk directly connected
2025-04-17 09:36:38 -07:00
Linus Torvalds
cfb2e2c57a 31 hotfixes. 9 are cc:stable and the remainder address post-6.15 issues
or aren't considered necessary for -stable kernels.
 
 22 patches are for MM, 9 are otherwise.
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Merge tag 'mm-hotfixes-stable-2025-04-16-19-59' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull misc hotfixes from Andrew Morton:
 "31 hotfixes.

  9 are cc:stable and the remainder address post-6.15 issues or aren't
  considered necessary for -stable kernels.

  22 patches are for MM, 9 are otherwise"

* tag 'mm-hotfixes-stable-2025-04-16-19-59' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (31 commits)
  MAINTAINERS: update HUGETLB reviewers
  mm: fix apply_to_existing_page_range()
  selftests/mm: fix compiler -Wmaybe-uninitialized warning
  alloc_tag: handle incomplete bulk allocations in vm_module_tags_populate
  mailmap: add entry for Jean-Michel Hautbois
  mm: (un)track_pfn_copy() fix + doc improvements
  mm: fix filemap_get_folios_contig returning batches of identical folios
  mm/hugetlb: add a line break at the end of the format string
  selftests: mincore: fix tmpfs mincore test failure
  mm/hugetlb: fix set_max_huge_pages() when there are surplus pages
  mm/cma: report base address of single range correctly
  mm: page_alloc: speed up fallbacks in rmqueue_bulk()
  kunit: slub: add module description
  mm/kasan: add module decription
  ucs2_string: add module description
  zlib: add module description
  fpga: tests: add module descriptions
  samples/livepatch: add module descriptions
  ASN.1: add module description
  mm/vma: add give_up_on_oom option on modify/merge, use in uffd release
  ...
2025-04-16 20:07:32 -07:00
Linus Torvalds
c62f4b82d5 This push fixes the following issues:
- Disable ahash request chaining as it causes problems with the sa2ul driver.
 - Fix a couple of bugs in the new scomp stream freeing code.
 - Fix an old caam refcount underflow that is possibly showing up now
   because of the new parallel self-tests.
 - Fix regression in the tegra driver.
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Merge tag 'v6.15-p4' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6

Pull crypto fixes from Herbert Xu:

 - Disable ahash request chaining as it causes problems with the sa2ul
   driver

 - Fix a couple of bugs in the new scomp stream freeing code

 - Fix an old caam refcount underflow that is possibly showing up now
   because of the new parallel self-tests

 - Fix regression in the tegra driver

* tag 'v6.15-p4' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  crypto: ahash - Disable request chaining
  crypto: scomp - Fix wild memory accesses in scomp_free_streams
  crypto: caam/qi - Fix drv_ctx refcount bug
  crypto: scomp - Fix null-pointer deref when freeing streams
  crypto: tegra - Fix IV usage for AES ECB
2025-04-16 08:05:46 -07:00
Ido Schimmel
2d300ce0b7 net: fib_rules: Fix iif / oif matching on L3 master device
Before commit 40867d74c3 ("net: Add l3mdev index to flow struct and
avoid oif reset for port devices") it was possible to use FIB rules to
match on a L3 domain. This was done by having a FIB rule match on iif /
oif being a L3 master device. It worked because prior to the FIB rule
lookup the iif / oif fields in the flow structure were reset to the
index of the L3 master device to which the input / output device was
enslaved to.

The above scheme made it impossible to match on the original input /
output device. Therefore, cited commit stopped overwriting the iif / oif
fields in the flow structure and instead stored the index of the
enslaving L3 master device in a new field ('flowi_l3mdev') in the flow
structure.

While the change enabled new use cases, it broke the original use case
of matching on a L3 domain. Fix this by interpreting the iif / oif
matching on a L3 master device as a match against the L3 domain. In
other words, if the iif / oif in the FIB rule points to a L3 master
device, compare the provided index against 'flowi_l3mdev' rather than
'flowi_{i,o}if'.

Before cited commit, a FIB rule that matched on 'iif vrf1' would only
match incoming traffic from devices enslaved to 'vrf1'. With the
proposed change (i.e., comparing against 'flowi_l3mdev'), the rule would
also match traffic originating from a socket bound to 'vrf1'. Avoid that
by adding a new flow flag ('FLOWI_FLAG_L3MDEV_OIF') that indicates if
the L3 domain was derived from the output interface or the input
interface (when not set) and take this flag into account when evaluating
the FIB rule against the flow structure.

Avoid unnecessary checks in the data path by detecting that a rule
matches on a L3 master device when the rule is installed and marking it
as such.

Tested using the following script [1].

Output before 40867d74c3 (v5.4.291):

default dev dummy1 table 100 scope link
default dev dummy1 table 200 scope link

Output after 40867d74c3:

default dev dummy1 table 300 scope link
default dev dummy1 table 300 scope link

Output with this patch:

default dev dummy1 table 100 scope link
default dev dummy1 table 200 scope link

[1]
 #!/bin/bash

 ip link add name vrf1 up type vrf table 10
 ip link add name dummy1 up master vrf1 type dummy

 sysctl -wq net.ipv4.conf.all.forwarding=1
 sysctl -wq net.ipv4.conf.all.rp_filter=0

 ip route add table 100 default dev dummy1
 ip route add table 200 default dev dummy1
 ip route add table 300 default dev dummy1

 ip rule add prio 0 oif vrf1 table 100
 ip rule add prio 1 iif vrf1 table 200
 ip rule add prio 2 table 300

 ip route get 192.0.2.1 oif dummy1 fibmatch
 ip route get 192.0.2.1 iif dummy1 from 198.51.100.1 fibmatch

Fixes: 40867d74c3 ("net: Add l3mdev index to flow struct and avoid oif reset for port devices")
Reported-by: hanhuihui <hanhuihui5@huawei.com>
Closes: https://lore.kernel.org/netdev/ec671c4f821a4d63904d0da15d604b75@huawei.com/
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Acked-by: David Ahern <dsahern@kernel.org>
Link: https://patch.msgid.link/20250414172022.242991-2-idosch@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-04-15 17:54:56 -07:00
Pavel Begunkov
25744f8495 io_uring/zcrx: return ifq id to the user
IORING_OP_RECV_ZC requests take a zcrx object id via sqe::zcrx_ifq_idx,
which binds it to the corresponding if / queue. However, we don't return
that id back to the user. It's fine as currently there can be only one
zcrx and the user assumes that its id should be 0, but as we'll need
multiple zcrx objects in the future let's explicitly pass it back on
registration.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/8714667d370651962f7d1a169032e5f02682a73e.1744722517.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-04-15 07:37:49 -06:00
Jonathan Currier
cf761e3dac PCI/MSI: Add an option to write MSIX ENTRY_DATA before any reads
Commit 7d5ec3d361 ("PCI/MSI: Mask all unused MSI-X entries") introduced a
readl() from ENTRY_VECTOR_CTRL before the writel() to ENTRY_DATA.

This is correct, however some hardware, like the Sun Neptune chips, the NIU
module, will cause an error and/or fatal trap if any MSIX table entry is
read before the corresponding ENTRY_DATA field is written to.

Add an optional early writel() in msix_prepare_msi_desc().

Fixes: 7d5ec3d361 ("PCI/MSI: Mask all unused MSI-X entries")
Signed-off-by: Jonathan Currier <dullfire@yahoo.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/all/20241117234843.19236-2-dullfire@yahoo.com
2025-04-15 08:32:18 +02:00
Linus Torvalds
834a4a6896 RDMA v6.15 first rc pull request
- Hang in bnxt_re due to miscomputing the budget
 
 - Avoid a -Wformat-security message in dev_set_name()
 
 - Avoid an unused definition warning in fs.c with some kconfigs
 
 - Fix error handling in usnic and remove IS_ERR_OR_NULL() usage
 
 - Regression in RXE support foudn by blktests due to missing ODP
   exclusions
 
 - Set the dma_segment_size on HNS so it doesn't corrupt DMA when using very
   large IOs
 
 - Move a INIT_WORK to near when the work is allocated in cm.c to fix a
   racey crash where work in progress was being init'd
 
 - Use __GFP_NOWARN to not dump in kvcalloc() if userspace requests a very
   big MR
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma

Pull rdma fixes from Jason Gunthorpe:

 - Fix hang in bnxt_re due to miscomputing the budget

 - Avoid a -Wformat-security message in dev_set_name()

 - Avoid an unused definition warning in fs.c with some kconfigs

 - Fix error handling in usnic and remove IS_ERR_OR_NULL() usage

 - Regression in RXE support foudn by blktests due to missing ODP
   exclusions

 - Set the dma_segment_size on HNS so it doesn't corrupt DMA when using
   very large IOs

 - Move a INIT_WORK to near when the work is allocated in cm.c to fix a
   racey crash where work in progress was being init'd

 - Use __GFP_NOWARN to not dump in kvcalloc() if userspace requests a
   very big MR

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
  RDMA/bnxt_re: Remove unusable nq variable
  RDMA/core: Silence oversized kvmalloc() warning
  RDMA/cma: Fix workqueue crash in cma_netevent_work_handler
  RDMA/hns: Fix wrong maximum DMA segment size
  RDMA/rxe: Fix null pointer dereference in ODP MR check
  RDMA/mlx5: Fix compilation warning when USER_ACCESS isn't set
  RDMA/usnic: Fix passing zero to PTR_ERR in usnic_ib_pci_probe()
  RDMA/ucaps: Avoid format-security warning
  RDMA/bnxt_re: Fix budget handling of notification queue
2025-04-14 10:24:04 -07:00
Linus Torvalds
3618002d00 vfs-6.15-rc3.fixes
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Merge tag 'vfs-6.15-rc3.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs

Pull vfs fixes from Christian Brauner:

 - Fix NULL pointer dereference in virtiofs

 - Fix slab OOB access in hfs/hfsplus

 - Only create /proc/fs/netfs when CONFIG_PROC_FS is set

 - Fix getname_flags() to initialize pointer correctly

 - Convert dentry flags to enum

 - Don't allow datadir without lowerdir in overlayfs

 - Use namespace_{lock,unlock} helpers in dissolve_on_fput() instead of
   plain namespace_sem so unmounted mounts are properly cleaned up

 - Skip unnecessary ifs_block_is_uptodate check in iomap

 - Remove an unused forward declaration in overlayfs

 - Fix devpts uid/gid handling after converting to the new mount api

 - Fix afs_dynroot_readdir() to not use the RCU read lock

 - Fix mount_setattr() and open_tree_attr() to not pointlessly do path
   lookup or walk the mount tree if no mount option change has been
   requested

* tag 'vfs-6.15-rc3.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
  fs: use namespace_{lock,unlock} in dissolve_on_fput()
  iomap: skip unnecessary ifs_block_is_uptodate check
  fs: Fix filename init after recent refactoring
  netfs: Only create /proc/fs/netfs with CONFIG_PROC_FS
  mount: ensure we don't pointlessly walk the mount tree
  dcache: convert dentry flag macros to enum
  afs: Fix afs_dynroot_readdir() to not use the RCU read lock
  hfs/hfsplus: fix slab-out-of-bounds in hfs_bnode_read_key
  virtiofs: add filesystem context source name check
  devpts: Fix type for uid and gid params
  ovl: remove unused forward declaration
  ovl: don't allow datadir only
2025-04-14 09:36:16 -07:00
Herbert Xu
b2e689baf2 crypto: ahash - Disable request chaining
Disable hash request chaining in case a driver that copies an
ahash_request object by hand accidentally triggers chaining.

Reported-by: Manorit Chawdhry <m-chawdhry@ti.com>
Fixes: f2ffe5a918 ("crypto: hash - Add request chaining API")
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Tested-by: Manorit Chawdhry <m-chawdhry@ti.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2025-04-12 09:33:09 +08:00
David Hildenbrand
8c56c5dbcf mm: (un)track_pfn_copy() fix + doc improvements
We got a late smatch warning and some additional review feedback.

	smatch warnings:
	mm/memory.c:1428 copy_page_range() error: uninitialized symbol 'pfn'.

We actually use the pfn only when it is properly initialized; however, we
may pass an uninitialized value to a function -- although it will not use
it that likely still is UB in C.

So let's just fix it by always initializing pfn in the caller of
track_pfn_copy(), and improving the documentation of track_pfn_copy().

While at it, clarify the doc of untrack_pfn_copy(), that internal checks
make sure if we actually have to untrack anything.

Link: https://lkml.kernel.org/r/20250408085950.976103-1-david@redhat.com
Fixes: dc84bc2aba ("x86/mm/pat: Fix VM_PAT handling when fork() fails in copy_page_range()")
Signed-off-by: David Hildenbrand <david@redhat.com>
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <error27@gmail.com>
Closes: https://lore.kernel.org/r/202503270941.IFILyNCX-lkp@intel.com/
Reviewed-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Acked-by: Ingo Molnar <mingo@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Rik van Riel <riel@surriel.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2025-04-11 17:32:41 -07:00
Alexei Starovoitov
51339d99c0 locking/local_lock, mm: replace localtry_ helpers with local_trylock_t type
Partially revert commit 0aaddfb068 ("locking/local_lock: Introduce
localtry_lock_t").  Remove localtry_*() helpers, since localtry_lock()
name might be misinterpreted as "try lock".

Introduce local_trylock[_irqsave]() helpers that only work with newly
introduced local_trylock_t type.  Note that attempt to use
local_trylock[_irqsave]() with local_lock_t will cause compilation
failure.

Usage and behavior in !PREEMPT_RT:

local_lock_t lock;                     // sizeof(lock) == 0
local_lock(&lock);                     // preempt disable
local_lock_irqsave(&lock, ...);        // irq save
if (local_trylock_irqsave(&lock, ...)) // compilation error

local_trylock_t lock;                  // sizeof(lock) == 4
local_lock(&lock);                     // preempt disable, acquired = 1
local_lock_irqsave(&lock, ...);        // irq save, acquired = 1
if (local_trylock(&lock))              // if (!acquired) preempt disable, acquired = 1
if (local_trylock_irqsave(&lock, ...)) // if (!acquired) irq save, acquired = 1

The existing local_lock_*() macros can be used either with local_lock_t or
local_trylock_t.  With local_trylock_t they set acquired = 1 while
local_unlock_*() clears it.

In !PREEMPT_RT local_lock_irqsave(local_lock_t *) disables interrupts to
protect critical section, but it doesn't prevent NMI, so the fully
reentrant code cannot use local_lock_irqsave(local_lock_t *) for exclusive
access.

The local_lock_irqsave(local_trylock_t *) helper disables interrupts and
sets acquired=1, so local_trylock_irqsave(local_trylock_t *) from NMI
attempting to acquire the same lock will return false.

In PREEMPT_RT local_lock_irqsave() maps to preemptible spin_lock().  Map
local_trylock_irqsave() to preemptible spin_trylock().  When in hard IRQ
or NMI return false right away, since spin_trylock() is not safe due to
explicit locking in the underneath rt_spin_trylock() implementation. 
Removing this explicit locking and attempting only "trylock" is undesired
due to PI implications.

The local_trylock() without _irqsave can be used to avoid the cost of
disabling/enabling interrupts by only disabling preemption, so
local_trylock() in an interrupt attempting to acquire the same lock will
return false.

Note there is no need to use local_inc for acquired variable, since it's a
percpu variable with strict nesting scopes.

Note that guard(local_lock)(&lock) works only for "local_lock_t lock".

The patch also makes sure that local_lock_release(l) is called before
WRITE_ONCE(l->acquired, 0).  Though IRQs are disabled at this point the
local_trylock() from NMI will succeed and local_lock_acquire(l) will warn.

Link: https://lkml.kernel.org/r/20250403025514.41186-1-alexei.starovoitov@gmail.com
Fixes: 0aaddfb068 ("locking/local_lock: Introduce localtry_lock_t")
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Acked-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Reviewed-by: Shakeel Butt <shakeel.butt@linux.dev>
Cc: Daniel Borkman <daniel@iogearbox.net>
Cc: Linus Torvalds <torvalds@linuxfoundation.org>
Cc: Martin KaFai Lau <martin.lau@kernel.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2025-04-11 17:32:35 -07:00
Dan Williams
7bdd8f75d1 fwctl/cxl: Fix uuid_t usage in uapi
The uuid_t type is kernel internal, and Paul reports the following build
error when it is used in a uapi header:

    usr/include/cxl/features.h:59:9: error: unknown type name ‘uuid_t’

Create a uuid type (__uapi_uuid_t) compatible with the longstanding
definition uuid/uuid.h for userspace builds, and use uuid_t directly for
kernel builds.

Fixes: 9b8e73cdb1 ("cxl: Move cxl feature command structs to user header")
Link: https://patch.msgid.link/r/174430961702.617339.13963021112051029933.stgit@dwillia2-xfh.jf.intel.com
Suggested-by: Jason Gunthorpe <jgg@nvidia.com>
Reported-by: Paul E. McKenney <paulmck@kernel.org>
Closes: http://lore.kernel.org/f6489337-67c7-48c8-b48a-58603ec15328@paulmck-laptop
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202504050434.Eb4vugh5-lkp@intel.com/
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Tested-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2025-04-11 20:45:43 -03:00
Omar Sandoval
b2b4483b5d
dcache: convert dentry flag macros to enum
Commit 9748cb2dc3 ("VFS: repack DENTRY_ flags.") changed the value of
DCACHE_MOUNTED, which broke drgn's path_lookup() helper. drgn is forced
to hard-code it because it's a macro, and macros aren't preserved in
debugging information by default.

Enums, on the other hand, are included in debugging information. Convert
the DCACHE_* flag macros to an enum so that debugging tools like drgn
and bpftrace can make use of them.

Link: 2027d0fea8/drgn/helpers/linux/fs.py (L43-L46)
Signed-off-by: Omar Sandoval <osandov@fb.com>
Link: https://lore.kernel.org/177665a082f048cf536b9cd6af467b3be6b6e6ed.1744141838.git.osandov@fb.com
Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-04-11 15:24:29 +02:00
Linus Torvalds
900241a5cc drm fixes for 6.15-rc2
tests:
 - Clean up struct drm_display_mode in various places
 
 i915:
 - Fix scanline offset for LNL+ and BMG+
 - Fix GVT unterminated-string-initialization build warning
 - Fix DP rate limit when sink doesn't support TPS4
 - Handle GDDR + ECC memory type detection
 - Fix VRR parameter change check
 - Fix fence not released on early probe errors
 - Disable render power gating during live selftests
 
 xe:
 - Add another BMG PCI ID
 - Fix UAFs on migration paths
 - Fix shift-out-of-bounds access on TLB invalidation
 - Ensure ccs_mode is correctly set on gt reset
 - Extend some HW workarounds to Xe3
 - Fix PM runtime get/put on sysfs files
 - Fix u64 division on 32b
 - Fix flickering due to missing L3 invalidations
 - Fix missing error code return
 
 amdgpu:
 - MES FW version caching fixes
 - Only use GTT as a fallback if we already have a backing store
 - dma_buf fix
 - IP discovery fix
 - Replay and PSR with VRR fix
 - DC FP fixes
 - eDP fixes
 - KIQ TLB invalidate fix
 - Enable dmem groups support
 - Allow pinning VRAM dma bufs if imports can do P2P
 - Workload profile fixes
 - Prevent possible division by 0 in fan handling
 
 amdkfd:
 - Queue reset fixes
 
 imagination:
 - Fix overflow
 - Fix use-after-free
 
 ivpu:
 - Fix suspend/resume
 
 nouveau:
 - Do not deref dangling pointer
 
 rockchip:
 - Set DP/HDMI registers correctly
 
 udmabuf:
 - Fix overflow
 
 virtgpu:
 - Set reservation lock on dma-buf import
 - Fix error handling in prepare_fb
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Merge tag 'drm-fixes-2025-04-11-1' of https://gitlab.freedesktop.org/drm/kernel

Pull drm fixes from Dave Airlie:
 "Weekly fixes, as expected it has a bit more in it than probably usual
  for rc2. amdgpu/xe/i915 lead the way with fixes all over for a bunch
  of other drivers. Nothing major stands out from what I can see.

  tests:
   - Clean up struct drm_display_mode in various places

  i915:
   - Fix scanline offset for LNL+ and BMG+
   - Fix GVT unterminated-string-initialization build warning
   - Fix DP rate limit when sink doesn't support TPS4
   - Handle GDDR + ECC memory type detection
   - Fix VRR parameter change check
   - Fix fence not released on early probe errors
   - Disable render power gating during live selftests

  xe:
   - Add another BMG PCI ID
   - Fix UAFs on migration paths
   - Fix shift-out-of-bounds access on TLB invalidation
   - Ensure ccs_mode is correctly set on gt reset
   - Extend some HW workarounds to Xe3
   - Fix PM runtime get/put on sysfs files
   - Fix u64 division on 32b
   - Fix flickering due to missing L3 invalidations
   - Fix missing error code return

  amdgpu:
   - MES FW version caching fixes
   - Only use GTT as a fallback if we already have a backing store
   - dma_buf fix
   - IP discovery fix
   - Replay and PSR with VRR fix
   - DC FP fixes
   - eDP fixes
   - KIQ TLB invalidate fix
   - Enable dmem groups support
   - Allow pinning VRAM dma bufs if imports can do P2P
   - Workload profile fixes
   - Prevent possible division by 0 in fan handling

  amdkfd:
   - Queue reset fixes

  imagination:
   - Fix overflow
   - Fix use-after-free

  ivpu:
   - Fix suspend/resume

  nouveau:
   - Do not deref dangling pointer

  rockchip:
   - Set DP/HDMI registers correctly

  udmabuf:
   - Fix overflow

  virtgpu:
   - Set reservation lock on dma-buf import
   - Fix error handling in prepare_fb"

* tag 'drm-fixes-2025-04-11-1' of https://gitlab.freedesktop.org/drm/kernel: (58 commits)
  drm/rockchip: dw_hdmi_qp: Fix io init for dw_hdmi_qp_rockchip_resume
  drm/rockchip: vop2: Fix interface enable/mux setting of DP1 on rk3588
  drm/amdgpu/mes12: optimize MES pipe FW version fetching
  drm/amd/pm/smu11: Prevent division by zero
  drm/amdgpu: cancel gfx idle work in device suspend for s0ix
  drm/amd/display: pause the workload setting in dm
  drm/amdgpu/pm/swsmu: implement pause workload profile
  drm/amdgpu/pm: add workload profile pause helper
  drm/i915/huc: Fix fence not released on early probe errors
  drm/i915/vrr: Add vrr.vsync_{start, end} in vrr_params_changed
  drm/tests: probe-helper: Fix drm_display_mode memory leak
  drm/tests: modes: Fix drm_display_mode memory leak
  drm/tests: modes: Fix drm_display_mode memory leak
  drm/tests: cmdline: Fix drm_display_mode memory leak
  drm/tests: modeset: Fix drm_display_mode memory leak
  drm/tests: modeset: Fix drm_display_mode memory leak
  drm/tests: helpers: Create kunit helper to destroy a drm_display_mode
  drm/xe: Restore EIO errno return when GuC PC start fails
  drm/xe: Invalidate L3 read-only cachelines for geometry streams too
  drm/xe: avoid plain 64-bit division
  ...
2025-04-10 20:30:06 -07:00
Dave Airlie
485442c6a5 Driver Changes:
- Add another BMG PCI ID
 - Fix UAFs on migration paths
 - Fix shift-out-of-bounds access on TLB invalidation
 - Ensure ccs_mode is correctly set on gt reset
 - Extend some HW workarounds to Xe3
 - Fix PM runtime get/put on sysfs files
 - Fix u64 division on 32b
 - Fix flickering due to missing L3 invalidations
 - Fix missing error code return
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Merge tag 'drm-xe-fixes-2025-04-10' of https://gitlab.freedesktop.org/drm/xe/kernel into drm-fixes

Driver Changes:
- Add another BMG PCI ID
- Fix UAFs on migration paths
- Fix shift-out-of-bounds access on TLB invalidation
- Ensure ccs_mode is correctly set on gt reset
- Extend some HW workarounds to Xe3
- Fix PM runtime get/put on sysfs files
- Fix u64 division on 32b
- Fix flickering due to missing L3 invalidations
- Fix missing error code return

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

From: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://lore.kernel.org/r/unq5j26aejbrjz5nuvmdtcgupyix5bacpoahod4bdohlvwrney@kekimsi5ossx
2025-04-11 09:11:08 +10:00
Linus Torvalds
0c7cae12f6 Miscellaneous irqchip fixes:
- Fix NULL pointer dereference crashes due to missing .chip_flags
    setup in the sg2042-msi and irq-bcm2712-mip irqchip drivers
 
  - Remove the davinci aintc irqchip driver's leftover header too
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'irq-urgent-2025-04-10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull misc irqchip fixes from Ingo Molnar:

 - Fix NULL pointer dereference crashes due to missing .chip_flags setup
   in the sg2042-msi and irq-bcm2712-mip irqchip drivers

 - Remove the davinci aintc irqchip driver's leftover header too

* tag 'irq-urgent-2025-04-10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  irqchip/irq-bcm2712-mip: Set EOI/ACK flags in msi_parent_ops
  irqchip/sg2042-msi: Add missing chip flags
  irqchip/davinci: Remove leftover header
2025-04-10 15:47:46 -07:00
Linus Torvalds
34833819d2 Miscellaneous timer fixes:
- Fix missing ACCESS_PRIVATE() that triggered a Sparse warning
 
  - Fix lockdep false positive in tick_freeze() on CONFIG_PREEMPT_RT=y
 
  - Avoid <vdso/unaligned.h> macro's variable shadowing to address build
    warning that triggers under W=2 builds
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'timers-urgent-2025-04-10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull misc timer fixes from Ingo Molnar:

 - Fix missing ACCESS_PRIVATE() that triggered a Sparse warning

 - Fix lockdep false positive in tick_freeze() on CONFIG_PREEMPT_RT=y

 - Avoid <vdso/unaligned.h> macro's variable shadowing to address build
   warning that triggers under W=2 builds

* tag 'timers-urgent-2025-04-10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  vdso: Address variable shadowing in macros
  timekeeping: Add a lockdep override in tick_freeze()
  hrtimer: Add missing ACCESS_PRIVATE() for hrtimer::function
2025-04-10 15:39:39 -07:00
Linus Torvalds
ac253a537d Miscellaneous perf events fixes:
- Fix __free_event() corner case splat
 
  - Fix false-positive uprobes related lockdep
    splat on CONFIG_PREEMPT_RT=y kernels
 
  - Fix a complicated perf sigtrap race that may
    result in hangs
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'perf-urgent-2025-04-10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull misc perf events fixes from Ingo Molnar:

 - Fix __free_event() corner case splat

 - Fix false-positive uprobes related lockdep splat on
   CONFIG_PREEMPT_RT=y kernels

 - Fix a complicated perf sigtrap race that may result in hangs

* tag 'perf-urgent-2025-04-10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf: Fix hang while freeing sigtrap event
  uprobes: Avoid false-positive lockdep splat on CONFIG_PREEMPT_RT=y in the ri_timer() uprobe timer callback, use raw_write_seqcount_*()
  perf/core: Fix WARN_ON(!ctx) in __free_event() for partial init
2025-04-10 14:47:36 -07:00
Linus Torvalds
ab59a86056 Including fixes from netfilter.
Current release - regressions:
 
   - core: hold instance lock during NETDEV_CHANGE
 
   - rtnetlink: fix bad unlock balance in do_setlink().
 
   - ipv6:
     - fix null-ptr-deref in addrconf_add_ifaddr().
     - align behavior across nexthops during path selection
 
 Previous releases - regressions:
 
   - sctp: prevent transport UaF in sendmsg
 
   - mptcp: only inc MPJoinAckHMacFailure for HMAC failures
 
 Previous releases - always broken:
 
   - sched:
     - make ->qlen_notify() idempotent
     - ensure sufficient space when sending filter netlink notifications
     - sch_sfq: really don't allow 1 packet limit
 
   - netfilter: fix incorrect avx2 match of 5th field octet
 
   - tls: explicitly disallow disconnect
 
   - eth: octeontx2-pf: fix VF root node parent queue priority
 
 Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Merge tag 'net-6.15-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

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

  Current release - regressions:

    - core: hold instance lock during NETDEV_CHANGE

    - rtnetlink: fix bad unlock balance in do_setlink()

    - ipv6:
       - fix null-ptr-deref in addrconf_add_ifaddr()
       - align behavior across nexthops during path selection

  Previous releases - regressions:

    - sctp: prevent transport UaF in sendmsg

    - mptcp: only inc MPJoinAckHMacFailure for HMAC failures

  Previous releases - always broken:

    - sched:
       - make ->qlen_notify() idempotent
       - ensure sufficient space when sending filter netlink notifications
       - sch_sfq: really don't allow 1 packet limit

    - netfilter: fix incorrect avx2 match of 5th field octet

    - tls: explicitly disallow disconnect

    - eth: octeontx2-pf: fix VF root node parent queue priority"

* tag 'net-6.15-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (38 commits)
  ethtool: cmis_cdb: Fix incorrect read / write length extension
  selftests: netfilter: add test case for recent mismatch bug
  nft_set_pipapo: fix incorrect avx2 match of 5th field octet
  net: ppp: Add bound checking for skb data on ppp_sync_txmung
  net: Fix null-ptr-deref by sock_lock_init_class_and_name() and rmmod.
  ipv6: Align behavior across nexthops during path selection
  net: phy: allow MDIO bus PM ops to start/stop state machine for phylink-controlled PHY
  net: phy: move phy_link_change() prior to mdio_bus_phy_may_suspend()
  selftests/tc-testing: sfq: check that a derived limit of 1 is rejected
  net_sched: sch_sfq: move the limit validation
  net_sched: sch_sfq: use a temporary work area for validating configuration
  net: libwx: handle page_pool_dev_alloc_pages error
  selftests: mptcp: validate MPJoin HMacFailure counters
  mptcp: only inc MPJoinAckHMacFailure for HMAC failures
  rtnetlink: Fix bad unlock balance in do_setlink().
  net: ethtool: Don't call .cleanup_data when prepare_data fails
  tc: Ensure we have enough buffer space when sending filter netlink notifications
  net: libwx: Fix the wrong Rx descriptor field
  octeontx2-pf: qos: fix VF root node parent queue index
  selftests: tls: check that disconnect does nothing
  ...
2025-04-10 08:52:18 -07:00
Linus Torvalds
8f43640c91 gpio fixes for v6.15-rc2
- fix resource handling in gpio-tegra186
 - fix wakeup source leaks in gpio-mpc8xxx and gpio-zynq
 - fix minor issues with some GPIO OF quirks
 - deprecate GPIOD_FLAGS_BIT_NONEXCLUSIVE and devm_gpiod_unhinge()
   symbols and add a TODO task to track replacing them with a better
   solution
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Merge tag 'gpio-fixes-for-v6.15-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux

Pull gpio fixes from Bartosz Golaszewski:

 - fix resource handling in gpio-tegra186

 - fix wakeup source leaks in gpio-mpc8xxx and gpio-zynq

 - fix minor issues with some GPIO OF quirks

 - deprecate GPIOD_FLAGS_BIT_NONEXCLUSIVE and devm_gpiod_unhinge()
   symbols and add a TODO task to track replacing them with a better
   solution

* tag 'gpio-fixes-for-v6.15-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
  gpiolib: of: Move Atmel HSMCI quirk up out of the regulator comment
  gpiolib: of: Fix the choice for Ingenic NAND quirk
  gpio: zynq: Fix wakeup source leaks on device unbind
  gpio: mpc8xxx: Fix wakeup source leaks on device unbind
  gpio: TODO: track the removal of regulator-related workarounds
  MAINTAINERS: add more keywords for the GPIO subsystem entry
  gpio: deprecate devm_gpiod_unhinge()
  gpio: deprecate the GPIOD_FLAGS_BIT_NONEXCLUSIVE flag
  gpio: tegra186: fix resource handling in ACPI probe path
2025-04-10 06:58:06 -07:00
Linus Torvalds
b4991c01ad Two important fixes: the build of the SPI NAND layer with old GCC
versions as well as the fix of the Qpic Makefile which was wrong in the
 first place.
 
 There are also two smaller fixes about a missing error and status check.
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Merge tag 'mtd/fixes-for-6.15-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux

Pull mtd fixes from Miquel Raynal:
 "Two important fixes: the build of the SPI NAND layer with old GCC
  versions as well as the fix of the Qpic Makefile which was wrong in
  the first place.

  There are also two smaller fixes about a missing error and status
  check"

* tag 'mtd/fixes-for-6.15-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux:
  mtd: spinand: Fix build with gcc < 7.5
  mtd: rawnand: Add status chack in r852_ready()
  mtd: inftlcore: Add error check for inftl_read_oob()
  mtd: nand: Drop explicit test for built-in CONFIG_SPI_QPIC_SNAND
2025-04-10 06:56:25 -07:00
Richard Fitzgerald
285b2c74cf
firmware: cs_dsp: test_bin_error: Fix uninitialized data used as fw version
Call cs_dsp_mock_xm_header_get_fw_version() to get the firmware version
from the dummy XM header data in cs_dsp_bin_err_test_common_init().

Make the same change to cs_dsp_bin_test_common_init() and remove the
cs_dsp_mock_xm_header_get_fw_version_from_regmap() function.

The code in cs_dsp_test_bin.c was correctly calling
cs_dsp_mock_xm_header_get_fw_version_from_regmap() to fetch the fw version
from a dummy header it wrote to XM registers. However in
cs_dsp_test_bin_error.c the test doesn't stuff a dummy header into XM, it
populates it the normal way using a wmfw file. It should have called
cs_dsp_mock_xm_header_get_fw_version() to get the data from its blob
buffer, but was calling cs_dsp_mock_xm_header_get_fw_version_from_regmap().
As nothing had been written to the registers this returned the value of
uninitialized data.

The only other use of cs_dsp_mock_xm_header_get_fw_version_from_regmap()
was cs_dsp_test_bin.c, but it doesn't need to use it. It already has a
blob buffer containing the dummy XM header so it can use
cs_dsp_mock_xm_header_get_fw_version() to read from that.

Fixes: cd8c058499 ("firmware: cs_dsp: Add KUnit testing of bin error cases")
Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Link: https://patch.msgid.link/20250410132129.1312541-1-rf@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2025-04-10 14:47:14 +01:00
Peng Jiang
acea994327 vdso: Address variable shadowing in macros
Compiling the kernel with gcc12.3 W=2 results in shadowing warnings:

warning: declaration of '__pptr' shadows a previous local [-Wshadow]
  const struct { type x; } __packed *__pptr = (typeof(__pptr))(ptr);

note: in definition of macro '__put_unaligned_t'
  __pptr->x = (val);

note: in expansion of macro '__get_unaligned_t'
  __put_unaligned_t(type, __get_unaligned_t(type, src), dst);

__get_unaligned_t() and __put_unaligned_t() use a local variable named
'__pptr', which can lead to variable shadowing when these macros are used in
the same scope. This results in a -Wshadow warning during compilation.

To address this issue, rename the local variables within the macros to
ensure uniqueness.

Signed-off-by: Peng Jiang <jiang.peng9@zte.com.cn>
Signed-off-by: Shao Mingyin <shao.mingyin@zte.com.cn>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/all/20250324191230477zpGtgIRSH4mEHdtxGtgx9@zte.com.cn
2025-04-10 11:07:10 +02:00
Kuniyuki Iwashima
0bb2f7a1ad net: Fix null-ptr-deref by sock_lock_init_class_and_name() and rmmod.
When I ran the repro [0] and waited a few seconds, I observed two
LOCKDEP splats: a warning immediately followed by a null-ptr-deref. [1]

Reproduction Steps:

  1) Mount CIFS
  2) Add an iptables rule to drop incoming FIN packets for CIFS
  3) Unmount CIFS
  4) Unload the CIFS module
  5) Remove the iptables rule

At step 3), the CIFS module calls sock_release() for the underlying
TCP socket, and it returns quickly.  However, the socket remains in
FIN_WAIT_1 because incoming FIN packets are dropped.

At this point, the module's refcnt is 0 while the socket is still
alive, so the following rmmod command succeeds.

  # ss -tan
  State      Recv-Q Send-Q Local Address:Port  Peer Address:Port
  FIN-WAIT-1 0      477        10.0.2.15:51062   10.0.0.137:445

  # lsmod | grep cifs
  cifs                 1159168  0

This highlights a discrepancy between the lifetime of the CIFS module
and the underlying TCP socket.  Even after CIFS calls sock_release()
and it returns, the TCP socket does not die immediately in order to
close the connection gracefully.

While this is generally fine, it causes an issue with LOCKDEP because
CIFS assigns a different lock class to the TCP socket's sk->sk_lock
using sock_lock_init_class_and_name().

Once an incoming packet is processed for the socket or a timer fires,
sk->sk_lock is acquired.

Then, LOCKDEP checks the lock context in check_wait_context(), where
hlock_class() is called to retrieve the lock class.  However, since
the module has already been unloaded, hlock_class() logs a warning
and returns NULL, triggering the null-ptr-deref.

If LOCKDEP is enabled, we must ensure that a module calling
sock_lock_init_class_and_name() (CIFS, NFS, etc) cannot be unloaded
while such a socket is still alive to prevent this issue.

Let's hold the module reference in sock_lock_init_class_and_name()
and release it when the socket is freed in sk_prot_free().

Note that sock_lock_init() clears sk->sk_owner for svc_create_socket()
that calls sock_lock_init_class_and_name() for a listening socket,
which clones a socket by sk_clone_lock() without GFP_ZERO.

[0]:
CIFS_SERVER="10.0.0.137"
CIFS_PATH="//${CIFS_SERVER}/Users/Administrator/Desktop/CIFS_TEST"
DEV="enp0s3"
CRED="/root/WindowsCredential.txt"

MNT=$(mktemp -d /tmp/XXXXXX)
mount -t cifs ${CIFS_PATH} ${MNT} -o vers=3.0,credentials=${CRED},cache=none,echo_interval=1

iptables -A INPUT -s ${CIFS_SERVER} -j DROP

for i in $(seq 10);
do
    umount ${MNT}
    rmmod cifs
    sleep 1
done

rm -r ${MNT}

iptables -D INPUT -s ${CIFS_SERVER} -j DROP

[1]:
DEBUG_LOCKS_WARN_ON(1)
WARNING: CPU: 10 PID: 0 at kernel/locking/lockdep.c:234 hlock_class (kernel/locking/lockdep.c:234 kernel/locking/lockdep.c:223)
Modules linked in: cifs_arc4 nls_ucs2_utils cifs_md4 [last unloaded: cifs]
CPU: 10 UID: 0 PID: 0 Comm: swapper/10 Not tainted 6.14.0 #36
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014
RIP: 0010:hlock_class (kernel/locking/lockdep.c:234 kernel/locking/lockdep.c:223)
...
Call Trace:
 <IRQ>
 __lock_acquire (kernel/locking/lockdep.c:4853 kernel/locking/lockdep.c:5178)
 lock_acquire (kernel/locking/lockdep.c:469 kernel/locking/lockdep.c:5853 kernel/locking/lockdep.c:5816)
 _raw_spin_lock_nested (kernel/locking/spinlock.c:379)
 tcp_v4_rcv (./include/linux/skbuff.h:1678 ./include/net/tcp.h:2547 net/ipv4/tcp_ipv4.c:2350)
...

BUG: kernel NULL pointer dereference, address: 00000000000000c4
 PF: supervisor read access in kernel mode
 PF: error_code(0x0000) - not-present page
PGD 0
Oops: Oops: 0000 [#1] PREEMPT SMP NOPTI
CPU: 10 UID: 0 PID: 0 Comm: swapper/10 Tainted: G        W          6.14.0 #36
Tainted: [W]=WARN
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014
RIP: 0010:__lock_acquire (kernel/locking/lockdep.c:4852 kernel/locking/lockdep.c:5178)
Code: 15 41 09 c7 41 8b 44 24 20 25 ff 1f 00 00 41 09 c7 8b 84 24 a0 00 00 00 45 89 7c 24 20 41 89 44 24 24 e8 e1 bc ff ff 4c 89 e7 <44> 0f b6 b8 c4 00 00 00 e8 d1 bc ff ff 0f b6 80 c5 00 00 00 88 44
RSP: 0018:ffa0000000468a10 EFLAGS: 00010046
RAX: 0000000000000000 RBX: ff1100010091cc38 RCX: 0000000000000027
RDX: ff1100081f09ca48 RSI: 0000000000000001 RDI: ff1100010091cc88
RBP: ff1100010091c200 R08: ff1100083fe6e228 R09: 00000000ffffbfff
R10: ff1100081eca0000 R11: ff1100083fe10dc0 R12: ff1100010091cc88
R13: 0000000000000001 R14: 0000000000000000 R15: 00000000000424b1
FS:  0000000000000000(0000) GS:ff1100081f080000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000000000c4 CR3: 0000000002c4a003 CR4: 0000000000771ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe07f0 DR7: 0000000000000400
PKRU: 55555554
Call Trace:
 <IRQ>
 lock_acquire (kernel/locking/lockdep.c:469 kernel/locking/lockdep.c:5853 kernel/locking/lockdep.c:5816)
 _raw_spin_lock_nested (kernel/locking/spinlock.c:379)
 tcp_v4_rcv (./include/linux/skbuff.h:1678 ./include/net/tcp.h:2547 net/ipv4/tcp_ipv4.c:2350)
 ip_protocol_deliver_rcu (net/ipv4/ip_input.c:205 (discriminator 1))
 ip_local_deliver_finish (./include/linux/rcupdate.h:878 net/ipv4/ip_input.c:234)
 ip_sublist_rcv_finish (net/ipv4/ip_input.c:576)
 ip_list_rcv_finish (net/ipv4/ip_input.c:628)
 ip_list_rcv (net/ipv4/ip_input.c:670)
 __netif_receive_skb_list_core (net/core/dev.c:5939 net/core/dev.c:5986)
 netif_receive_skb_list_internal (net/core/dev.c:6040 net/core/dev.c:6129)
 napi_complete_done (./include/linux/list.h:37 ./include/net/gro.h:519 ./include/net/gro.h:514 net/core/dev.c:6496)
 e1000_clean (drivers/net/ethernet/intel/e1000/e1000_main.c:3815)
 __napi_poll.constprop.0 (net/core/dev.c:7191)
 net_rx_action (net/core/dev.c:7262 net/core/dev.c:7382)
 handle_softirqs (kernel/softirq.c:561)
 __irq_exit_rcu (kernel/softirq.c:596 kernel/softirq.c:435 kernel/softirq.c:662)
 irq_exit_rcu (kernel/softirq.c:680)
 common_interrupt (arch/x86/kernel/irq.c:280 (discriminator 14))
  </IRQ>
 <TASK>
 asm_common_interrupt (./arch/x86/include/asm/idtentry.h:693)
RIP: 0010:default_idle (./arch/x86/include/asm/irqflags.h:37 ./arch/x86/include/asm/irqflags.h:92 arch/x86/kernel/process.c:744)
Code: 4c 01 c7 4c 29 c2 e9 72 ff ff ff 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa eb 07 0f 00 2d c3 2b 15 00 fb f4 <fa> c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90
RSP: 0018:ffa00000000ffee8 EFLAGS: 00000202
RAX: 000000000000640b RBX: ff1100010091c200 RCX: 0000000000061aa4
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff812f30c5
RBP: 000000000000000a R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000002 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 ? do_idle (kernel/sched/idle.c:186 kernel/sched/idle.c:325)
 default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118)
 do_idle (kernel/sched/idle.c:186 kernel/sched/idle.c:325)
 cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1))
 start_secondary (arch/x86/kernel/smpboot.c:315)
 common_startup_64 (arch/x86/kernel/head_64.S:421)
 </TASK>
Modules linked in: cifs_arc4 nls_ucs2_utils cifs_md4 [last unloaded: cifs]
CR2: 00000000000000c4

Fixes: ed07536ed6 ("[PATCH] lockdep: annotate nfs/nfsd in-kernel sockets")
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Cc: stable@vger.kernel.org
Link: https://patch.msgid.link/20250407163313.22682-1-kuniyu@amazon.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-04-09 19:11:55 -07:00
Nam Cao
2424e146be hrtimer: Add missing ACCESS_PRIVATE() for hrtimer::function
The "function" field of struct hrtimer has been changed to private, but
two instances have not been converted to use ACCESS_PRIVATE().

Convert them to use ACCESS_PRIVATE().

Fixes: 04257da0c9 ("hrtimers: Make callback function pointer private")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Nam Cao <namcao@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/all/20250408103854.1851093-1-namcao@linutronix.de
Closes: https://lore.kernel.org/oe-kbuild-all/202504071931.vOVl13tt-lkp@intel.com/
Closes: https://lore.kernel.org/oe-kbuild-all/202504072155.5UAZjYGU-lkp@intel.com/
2025-04-09 21:00:42 +02:00
Martin K. Petersen
a1af6f1a14 Merge branch '6.15/scsi-queue' into 6.15/scsi-fixes
Pull in remaining fixes from 6.15/scsi-queue.

Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2025-04-08 22:04:31 -04:00
Linus Torvalds
a245882457 linux_kselftest-kunit-6.15-rc2
Fixes tool to report test count in case of a late test plan when tests
 are specified before the test plan. Fixes spelling error in the commit
 that went into 6.15-rc1.
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Merge tag 'linux_kselftest-kunit-6.15-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest

Pull kunit fixes from Shuah Khan:

 - Fix the tool to report test count in case of a late test plan when
   tests are specified before the test plan

 - Fix spelling error

* tag 'linux_kselftest-kunit-6.15-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
  kunit: Spelling s/slowm/slow/
  kunit: tool: fix count of tests if late test plan
2025-04-08 17:16:43 -07:00
Geert Uytterhoeven
d1be0cf3b8 kunit: Spelling s/slowm/slow/
Fix a misspelling of "slow".

Link: https://lore.kernel.org/r/1f7ebf98598418914ec9f5b6d5cb8583d24a4bf0.1743089563.git.geert@linux-m68k.org
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Reviewed-by: David Gow <davidgow@google.com>
Signed-off-by: Shuah Khan <shuah@kernel.org>
2025-04-08 14:57:24 -06:00
Linus Torvalds
0e8863244e ARM:
* Rework heuristics for resolving the fault IPA (HPFAR_EL2 v. re-walk
   stage-1 page tables) to align with the architecture. This avoids
   possibly taking an SEA at EL2 on the page table walk or using an
   architecturally UNKNOWN fault IPA.
 
 * Use acquire/release semantics in the KVM FF-A proxy to avoid reading
   a stale value for the FF-A version.
 
 * Fix KVM guest driver to match PV CPUID hypercall ABI.
 
 * Use Inner Shareable Normal Write-Back mappings at stage-1 in KVM
   selftests, which is the only memory type for which atomic
   instructions are architecturally guaranteed to work.
 
 s390:
 
 * Don't use %pK for debug printing and tracepoints.
 
 x86:
 
 * Use a separate subclass when acquiring KVM's per-CPU posted interrupts
   wakeup lock in the scheduled out path, i.e. when adding a vCPU on
   the list of vCPUs to wake, to workaround a false positive deadlock.
   The schedule out code runs with a scheduler lock that the wakeup
   handler takes in the opposite order; but it does so with IRQs disabled
   and cannot run concurrently with a wakeup.
 
 * Explicitly zero-initialize on-stack CPUID unions
 
 * Allow building irqbypass.ko as as module when kvm.ko is a module
 
 * Wrap relatively expensive sanity check with KVM_PROVE_MMU
 
 * Acquire SRCU in KVM_GET_MP_STATE to protect guest memory accesses
 
 selftests:
 
 * Add more scenarios to the MONITOR/MWAIT test.
 
 * Add option to rseq test to override /dev/cpu_dma_latency
 
 * Bring list of exit reasons up to date
 
 * Cleanup Makefile to list once tests that are valid on all architectures
 
 Other:
 
 * Documentation fixes
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull kvm fixes from Paolo Bonzini:
 "ARM:

   - Rework heuristics for resolving the fault IPA (HPFAR_EL2 v. re-walk
     stage-1 page tables) to align with the architecture. This avoids
     possibly taking an SEA at EL2 on the page table walk or using an
     architecturally UNKNOWN fault IPA

   - Use acquire/release semantics in the KVM FF-A proxy to avoid
     reading a stale value for the FF-A version

   - Fix KVM guest driver to match PV CPUID hypercall ABI

   - Use Inner Shareable Normal Write-Back mappings at stage-1 in KVM
     selftests, which is the only memory type for which atomic
     instructions are architecturally guaranteed to work

  s390:

   - Don't use %pK for debug printing and tracepoints

  x86:

   - Use a separate subclass when acquiring KVM's per-CPU posted
     interrupts wakeup lock in the scheduled out path, i.e. when adding
     a vCPU on the list of vCPUs to wake, to workaround a false positive
     deadlock. The schedule out code runs with a scheduler lock that the
     wakeup handler takes in the opposite order; but it does so with
     IRQs disabled and cannot run concurrently with a wakeup

   - Explicitly zero-initialize on-stack CPUID unions

   - Allow building irqbypass.ko as as module when kvm.ko is a module

   - Wrap relatively expensive sanity check with KVM_PROVE_MMU

   - Acquire SRCU in KVM_GET_MP_STATE to protect guest memory accesses

  selftests:

   - Add more scenarios to the MONITOR/MWAIT test

   - Add option to rseq test to override /dev/cpu_dma_latency

   - Bring list of exit reasons up to date

   - Cleanup Makefile to list once tests that are valid on all
     architectures

  Other:

   - Documentation fixes"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (26 commits)
  KVM: arm64: Use acquire/release to communicate FF-A version negotiation
  KVM: arm64: selftests: Explicitly set the page attrs to Inner-Shareable
  KVM: arm64: selftests: Introduce and use hardware-definition macros
  KVM: VMX: Use separate subclasses for PI wakeup lock to squash false positive
  KVM: VMX: Assert that IRQs are disabled when putting vCPU on PI wakeup list
  KVM: x86: Explicitly zero-initialize on-stack CPUID unions
  KVM: Allow building irqbypass.ko as as module when kvm.ko is a module
  KVM: x86/mmu: Wrap sanity check on number of TDP MMU pages with KVM_PROVE_MMU
  KVM: selftests: Add option to rseq test to override /dev/cpu_dma_latency
  KVM: x86: Acquire SRCU in KVM_GET_MP_STATE to protect guest memory accesses
  Documentation: kvm: remove KVM_CAP_MIPS_TE
  Documentation: kvm: organize capabilities in the right section
  Documentation: kvm: fix some definition lists
  Documentation: kvm: drop "Capability" heading from capabilities
  Documentation: kvm: give correct name for KVM_CAP_SPAPR_MULTITCE
  Documentation: KVM: KVM_GET_SUPPORTED_CPUID now exposes TSC_DEADLINE
  selftests: kvm: list once tests that are valid on all architectures
  selftests: kvm: bring list of exit reasons up to date
  selftests: kvm: revamp MONITOR/MWAIT tests
  KVM: arm64: Don't translate FAR if invalid/unsafe
  ...
2025-04-08 13:47:55 -07:00
Linus Torvalds
e37f72b3b4 cgroup: Fixes for v6.15-rc1
- A number of cpuset remote partition related fixes and cleanups along with
   selftest updates.
 
 - A change from this merge window made cgroup_rstat_updated_list() called
   outside cgroup_rstat_lock leading to list corruptions. Fix it by
   relocating the call inside the lock.
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Merge tag 'cgroup-for-6.15-rc1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup

Pull cgroup fixes from Tejun Heo:

 - A number of cpuset remote partition related fixes and cleanups along
   with selftest updates.

 - A change from this merge window made cgroup_rstat_updated_list()
   called outside cgroup_rstat_lock leading to list corruptions. Fix it
   by relocating the call inside the lock.

* tag 'cgroup-for-6.15-rc1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
  cgroup/cpuset: Fix race between newly created partition and dying one
  cgroup: rstat: call cgroup_rstat_updated_list with cgroup_rstat_lock
  selftest/cgroup: Add a remote partition transition test to test_cpuset_prs.sh
  selftest/cgroup: Clean up and restructure test_cpuset_prs.sh
  selftest/cgroup: Update test_cpuset_prs.sh to use | as effective CPUs and state separator
  cgroup/cpuset: Remove unneeded goto in sched_partition_write() and rename it
  cgroup/cpuset: Code cleanup and comment update
  cgroup/cpuset: Don't allow creation of local partition over a remote one
  cgroup/cpuset: Remove remote_partition_check() & make update_cpumasks_hier() handle remote partition
  cgroup/cpuset: Fix error handling in remote_partition_disable()
  cgroup/cpuset: Fix incorrect isolated_cpus update in update_parent_effective_cpumask()
2025-04-08 12:15:05 -07:00
Frederic Weisbecker
56799bc035 perf: Fix hang while freeing sigtrap event
Perf can hang while freeing a sigtrap event if a related deferred
signal hadn't managed to be sent before the file got closed:

perf_event_overflow()
   task_work_add(perf_pending_task)

fput()
   task_work_add(____fput())

task_work_run()
    ____fput()
        perf_release()
            perf_event_release_kernel()
                _free_event()
                    perf_pending_task_sync()
                        task_work_cancel() -> FAILED
                        rcuwait_wait_event()

Once task_work_run() is running, the list of pending callbacks is
removed from the task_struct and from this point on task_work_cancel()
can't remove any pending and not yet started work items, hence the
task_work_cancel() failure and the hang on rcuwait_wait_event().

Task work could be changed to remove one work at a time, so a work
running on the current task can always cancel a pending one, however
the wait / wake design is still subject to inverted dependencies when
remote targets are involved, as pictured by Oleg:

T1                                                      T2

fd = perf_event_open(pid => T2->pid);                  fd = perf_event_open(pid => T1->pid);
close(fd)                                              close(fd)
    <IRQ>                                                  <IRQ>
    perf_event_overflow()                                  perf_event_overflow()
       task_work_add(perf_pending_task)                        task_work_add(perf_pending_task)
    </IRQ>                                                 </IRQ>
    fput()                                                 fput()
        task_work_add(____fput())                              task_work_add(____fput())

    task_work_run()                                        task_work_run()
        ____fput()                                             ____fput()
            perf_release()                                         perf_release()
                perf_event_release_kernel()                            perf_event_release_kernel()
                    _free_event()                                          _free_event()
                        perf_pending_task_sync()                               perf_pending_task_sync()
                            rcuwait_wait_event()                                   rcuwait_wait_event()

Therefore the only option left is to acquire the event reference count
upon queueing the perf task work and release it from the task work, just
like it was done before 3a5465418f ("perf: Fix event leak upon exec and file release")
but without the leaks it fixed.

Some adjustments are necessary to make it work:

* A child event might dereference its parent upon freeing. Care must be
  taken to release the parent last.

* Some places assuming the event doesn't have any reference held and
  therefore can be freed right away must instead put the reference and
  let the reference counting to its job.

Reported-by: "Yi Lai" <yi1.lai@linux.intel.com>
Closes: https://lore.kernel.org/all/Zx9Losv4YcJowaP%2F@ly-workstation/
Reported-by: syzbot+3c4321e10eea460eb606@syzkaller.appspotmail.com
Closes: https://lore.kernel.org/all/673adf75.050a0220.87769.0024.GAE@google.com/
Fixes: 3a5465418f ("perf: Fix event leak upon exec and file release")
Signed-off-by: Frederic Weisbecker <frederic@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20250304135446.18905-1-frederic@kernel.org
2025-04-08 20:55:43 +02:00
Maxime Ripard
13c1d5f3a7
drm/tests: helpers: Create kunit helper to destroy a drm_display_mode
A number of test suites call functions that expect the returned
drm_display_mode to be destroyed eventually.

However, none of the tests called drm_mode_destroy, which results in a
memory leak.

Since drm_mode_destroy takes two pointers as argument, we can't use a
kunit wrapper. Let's just create a helper every test suite can use.

Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://lore.kernel.org/r/20250408-drm-kunit-drm-display-mode-memleak-v1-1-996305a2e75a@kernel.org
Signed-off-by: Maxime Ripard <mripard@kernel.org>
2025-04-08 17:26:58 +02:00
Ricardo Cañuelo Navarro
f1a69a940d sctp: detect and prevent references to a freed transport in sendmsg
sctp_sendmsg() re-uses associations and transports when possible by
doing a lookup based on the socket endpoint and the message destination
address, and then sctp_sendmsg_to_asoc() sets the selected transport in
all the message chunks to be sent.

There's a possible race condition if another thread triggers the removal
of that selected transport, for instance, by explicitly unbinding an
address with setsockopt(SCTP_SOCKOPT_BINDX_REM), after the chunks have
been set up and before the message is sent. This can happen if the send
buffer is full, during the period when the sender thread temporarily
releases the socket lock in sctp_wait_for_sndbuf().

This causes the access to the transport data in
sctp_outq_select_transport(), when the association outqueue is flushed,
to result in a use-after-free read.

This change avoids this scenario by having sctp_transport_free() signal
the freeing of the transport, tagging it as "dead". In order to do this,
the patch restores the "dead" bit in struct sctp_transport, which was
removed in
commit 47faa1e4c5 ("sctp: remove the dead field of sctp_transport").

Then, in the scenario where the sender thread has released the socket
lock in sctp_wait_for_sndbuf(), the bit is checked again after
re-acquiring the socket lock to detect the deletion. This is done while
holding a reference to the transport to prevent it from being freed in
the process.

If the transport was deleted while the socket lock was relinquished,
sctp_sendmsg_to_asoc() will return -EAGAIN to let userspace retry the
send.

The bug was found by a private syzbot instance (see the error report [1]
and the C reproducer that triggers it [2]).

Link: https://people.igalia.com/rcn/kernel_logs/20250402__KASAN_slab-use-after-free_Read_in_sctp_outq_select_transport.txt [1]
Link: https://people.igalia.com/rcn/kernel_logs/20250402__KASAN_slab-use-after-free_Read_in_sctp_outq_select_transport__repro.c [2]
Cc: stable@vger.kernel.org
Fixes: df132eff46 ("sctp: clear the transport of some out_chunk_list chunks in sctp_assoc_rm_peer")
Suggested-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: Ricardo Cañuelo Navarro <rcn@igalia.com>
Acked-by: Xin Long <lucien.xin@gmail.com>
Link: https://patch.msgid.link/20250404-kasan_slab-use-after-free_read_in_sctp_outq_select_transport__20250404-v1-1-5ce4a0b78ef2@igalia.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-04-08 11:34:06 +02:00
Bartosz Golaszewski
6deb8435f6 gpio: deprecate the GPIOD_FLAGS_BIT_NONEXCLUSIVE flag
The non-exclusive GPIO request flag looks like a functional feature but
is in fact a workaround for a corner-case that got out of hand. It should
be removed so deprecate it officially so that nobody uses it anymore.

Acked-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20250401-gpio-todo-remove-nonexclusive-v2-1-7c1380797b0d@linaro.org
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2025-04-08 10:41:58 +02:00
Matt Roper
5529df92b8 drm/xe/bmg: Add one additional PCI ID
One additional BMG PCI ID has been added to the spec; make sure our
driver recognizes devices with this ID properly.

Bspec: 68090
Cc: stable@vger.kernel.org # v6.12+
Reviewed-by: Clint Taylor <Clinton.A.Taylor@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://lore.kernel.org/r/20250325224709.4073080-2-matthew.d.roper@intel.com
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
(cherry picked from commit cca9734ebe)
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
2025-04-07 13:16:06 -07:00
Mark Bloch
d247667ecd RDMA/mlx5: Fix compilation warning when USER_ACCESS isn't set
The cited commit made fs.c always compile, even when
INFINIBAND_USER_ACCESS isn't set. This results in a compilation
warning about an unused object when compiling with W=1 and
USER_ACCESS is unset.

Fix this by defining uverbs_destroy_def_handler() even when
USER_ACCESS isn't set.

Fixes: 36e0d43367 ("RDMA/mlx5: Compile fs.c regardless of INFINIBAND_USER_ACCESS config")
Link: https://patch.msgid.link/r/20250402070944.1022093-1-mbloch@nvidia.com
Signed-off-by: Mark Bloch <mbloch@nvidia.com>
Tested-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2025-04-07 15:14:34 -03:00
Stanislav Fomichev
04efcee6ef net: hold instance lock during NETDEV_CHANGE
Cosmin reports an issue with ipv6_add_dev being called from
NETDEV_CHANGE notifier:

[ 3455.008776]  ? ipv6_add_dev+0x370/0x620
[ 3455.010097]  ipv6_find_idev+0x96/0xe0
[ 3455.010725]  addrconf_add_dev+0x1e/0xa0
[ 3455.011382]  addrconf_init_auto_addrs+0xb0/0x720
[ 3455.013537]  addrconf_notify+0x35f/0x8d0
[ 3455.014214]  notifier_call_chain+0x38/0xf0
[ 3455.014903]  netdev_state_change+0x65/0x90
[ 3455.015586]  linkwatch_do_dev+0x5a/0x70
[ 3455.016238]  rtnl_getlink+0x241/0x3e0
[ 3455.019046]  rtnetlink_rcv_msg+0x177/0x5e0

Similarly, linkwatch might get to ipv6_add_dev without ops lock:
[ 3456.656261]  ? ipv6_add_dev+0x370/0x620
[ 3456.660039]  ipv6_find_idev+0x96/0xe0
[ 3456.660445]  addrconf_add_dev+0x1e/0xa0
[ 3456.660861]  addrconf_init_auto_addrs+0xb0/0x720
[ 3456.661803]  addrconf_notify+0x35f/0x8d0
[ 3456.662236]  notifier_call_chain+0x38/0xf0
[ 3456.662676]  netdev_state_change+0x65/0x90
[ 3456.663112]  linkwatch_do_dev+0x5a/0x70
[ 3456.663529]  __linkwatch_run_queue+0xeb/0x200
[ 3456.663990]  linkwatch_event+0x21/0x30
[ 3456.664399]  process_one_work+0x211/0x610
[ 3456.664828]  worker_thread+0x1cc/0x380
[ 3456.665691]  kthread+0xf4/0x210

Reclassify NETDEV_CHANGE as a notifier that consistently runs under the
instance lock.

Link: https://lore.kernel.org/netdev/aac073de8beec3e531c86c101b274d434741c28e.camel@nvidia.com/
Reported-by: Cosmin Ratiu <cratiu@nvidia.com>
Tested-by: Cosmin Ratiu <cratiu@nvidia.com>
Fixes: ad7c7b2172 ("net: hold netdev instance lock during sysfs operations")
Signed-off-by: Stanislav Fomichev <sdf@fomichev.me>
Link: https://patch.msgid.link/20250404161122.3907628-1-sdf@fomichev.me
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-04-07 11:13:39 -07:00
David E. Box
d8455a63f7
platform/x86: intel_pmc_ipc: add option to build without ACPI
Introduce a configuration option that allows users to build the
intel_pmc_ipc driver without ACPI support. This is useful for
systems where ACPI is not available or desired.

Based on the discussion from the patch [1], it was necessary to
provide this option to accommodate specific use cases.

Link: https://patchwork.kernel.org/project/netdevbpf/patch/20250227121522.1802832-6-yong.liang.choong@linux.intel.com/#26280764 [1]

Signed-off-by: David E. Box <david.e.box@linux.intel.com>
Co-developed-by: Choong Yong Liang <yong.liang.choong@linux.intel.com>
Signed-off-by: Choong Yong Liang <yong.liang.choong@linux.intel.com>
Reviewed-by: Andy Shevchenko <andy@kernel.org>
Link: https://lore.kernel.org/r/20250313085526.1439092-1-yong.liang.choong@linux.intel.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
2025-04-07 14:50:43 +03:00
Bartosz Golaszewski
75f8c87555 irqchip/davinci: Remove leftover header
Commit fa8dede4d0 ("irqchip: remove davinci aintc driver") removed the
davinci aintc driver but left behind the associated header. Remove it
now.

Fixes: fa8dede4d0 ("irqchip: remove davinci aintc driver")
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/all/20250306084552.15894-1-brgl@bgdev.pl
2025-04-07 09:23:55 +02:00
Miquel Raynal
1c1fd374a2 mtd: spinand: Fix build with gcc < 7.5
__VA_OPT__ is a macro that is useful when some arguments can be present
or not to entirely skip some part of a definition. Unfortunately, it
is a too recent addition that some of the still supported old GCC
versions do not know about, and is anyway not part of C11 that is the
version used in the kernel.

Find a trick to remove this macro, typically '__VA_ARGS__ + 0' is a
workaround used in netlink.h which works very well here, as we either
expect:
- 0
- A positive value
- No value, which means the field should be 0.

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202503181330.YcDXGy7F-lkp@intel.com/
Fixes: 7ce0d16d58 ("mtd: spinand: Add an optional frequency to read from cache macros")
Cc: stable@vger.kernel.org
Tested-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2025-04-07 09:05:31 +02:00
Linus Torvalds
16cd1c2657 A set of final cleanups for the timer subsystem:
1) Convert all del_timer[_sync]() instances over to the new
      timer_delete[_sync]() API and remove the legacy wrappers.
 
      Conversion was done with coccinelle plus some manual fixups as
      coccinelle chokes on scoped_guard().
 
   2) The final cleanup of the hrtimer_init() to hrtimer_setup() conversion.
 
      This has been delayed to the end of the merge window, so that all
      patches which have been merged through other trees are in mainline and
      all new users are catched.
 
 Doing this right before rc1 ensures that new code which is merged post rc1
 is not introducing new instances of the original functionality.
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Merge tag 'timers-cleanups-2025-04-06' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull timer cleanups from Thomas Gleixner:
 "A set of final cleanups for the timer subsystem:

   - Convert all del_timer[_sync]() instances over to the new
     timer_delete[_sync]() API and remove the legacy wrappers.

     Conversion was done with coccinelle plus some manual fixups as
     coccinelle chokes on scoped_guard().

   - The final cleanup of the hrtimer_init() to hrtimer_setup()
     conversion.

     This has been delayed to the end of the merge window, so that all
     patches which have been merged through other trees are in mainline
     and all new users are catched.

  Doing this right before rc1 ensures that new code which is merged post
  rc1 is not introducing new instances of the original functionality"

* tag 'timers-cleanups-2025-04-06' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  tracing/timers: Rename the hrtimer_init event to hrtimer_setup
  hrtimers: Rename debug_init_on_stack() to debug_setup_on_stack()
  hrtimers: Rename debug_init() to debug_setup()
  hrtimers: Rename __hrtimer_init_sleeper() to __hrtimer_setup_sleeper()
  hrtimers: Remove unnecessary NULL check in hrtimer_start_range_ns()
  hrtimers: Make callback function pointer private
  hrtimers: Merge __hrtimer_init() into __hrtimer_setup()
  hrtimers: Switch to use __htimer_setup()
  hrtimers: Delete hrtimer_init()
  treewide: Convert new and leftover hrtimer_init() users
  treewide: Switch/rename to timer_delete[_sync]()
2025-04-06 08:35:37 -07:00
Linus Torvalds
ff0c66685d A set of updates for the interrupt subsystem:
1) A treewide cleanup for the irq_domain code, which makes the naming
      consistent and gets rid of the original oddity of naming domains
      'host'.
 
      This is a trivial mechanical change and is done late to ensure that
      all instances have been catched and new code merged post rc1 wont
      reintroduce new instances.
 
   2) A trivial consistency fix in the migration code
 
      The recent introduction of irq_force_complete_move() in the core
      code, causes a problem for the nostalgia crowd who maintains ia64 out
      of tree.
 
      The code assumes that hierarchical interrupt domains are enabled and
      dereferences irq_data::parent_data unconditionally. That works in mainline
      because both architectures which enable that code have hierarchical domains
      enabled. Though it breaks the ia64 build, which enables the functionality,
      but does not have hierarchical domains.
 
      While it's not really a problem for mainline today, this
      unconditional dereference is inconsistent and trivially fixable by
      using the existing helper function irqd_get_parent_data(), which has
      the appropriate #ifdeffery in place.
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Merge tag 'irq-urgent-2025-04-06' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull more irq updates from Thomas Gleixner:
 "A set of updates for the interrupt subsystem:

   - A treewide cleanup for the irq_domain code, which makes the naming
     consistent and gets rid of the original oddity of naming domains
     'host'.

     This is a trivial mechanical change and is done late to ensure that
     all instances have been catched and new code merged post rc1 wont
     reintroduce new instances.

   - A trivial consistency fix in the migration code

     The recent introduction of irq_force_complete_move() in the core
     code, causes a problem for the nostalgia crowd who maintains ia64
     out of tree.

     The code assumes that hierarchical interrupt domains are enabled
     and dereferences irq_data::parent_data unconditionally. That works
     in mainline because both architectures which enable that code have
     hierarchical domains enabled. Though it breaks the ia64 build,
     which enables the functionality, but does not have hierarchical
     domains.

     While it's not really a problem for mainline today, this
     unconditional dereference is inconsistent and trivially fixable by
     using the existing helper function irqd_get_parent_data(), which
     has the appropriate #ifdeffery in place"

* tag 'irq-urgent-2025-04-06' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  genirq/migration: Use irqd_get_parent_data() in irq_force_complete_move()
  irqdomain: Stop using 'host' for domain
  irqdomain: Rename irq_get_default_host() to irq_get_default_domain()
  irqdomain: Rename irq_set_default_host() to irq_set_default_domain()
2025-04-06 08:17:43 -07:00
Nam Cao
244132c4e5 tracing/timers: Rename the hrtimer_init event to hrtimer_setup
The function hrtimer_init() doesn't exist anymore. It was replaced by
hrtimer_setup().

Thus, rename the hrtimer_init trace event to hrtimer_setup to keep it
consistent.

Signed-off-by: Nam Cao <namcao@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/all/cba84c3d853c5258aa3a262363a6eac08e2c7afc.1738746927.git.namcao@linutronix.de
2025-04-05 10:30:17 +02:00