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git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull ring-buffer fix from Steven Rostedt:
- Fix accounting of persistent ring buffer rewind
On boot up, the head page is moved back to the earliest point of the
saved ring buffer. This is because the ring buffer being read by user
space on a crash may not save the part it read. Rewinding the head
page back to the earliest saved position helps keep those events from
being lost.
The number of events is also read during boot up and displayed in the
stats file in the tracefs directory. It's also used for other
accounting as well. On boot up, the "reader page" is accounted for
but a rewind may put it back into the buffer and then the reader page
may be accounted for again.
Save off the original reader page and skip accounting it when
scanning the pages in the ring buffer.
* tag 'trace-ring-buffer-v7.1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
ring-buffer: Do not double count the reader_page
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git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux
Pull block fixes from Jens Axboe:
- Series for zloop, fixing a variety of issues
- t10-pi code cleanup
- Fix for a merge window regression with the bio memory allocation mask
- Fix for a merge window regression in ublk, caused by an issue with
the maple tree iteration code at teardown
- ublk self tests additions
- Zoned device pgmap fixes
- Various little cleanups and fixes
* tag 'block-7.1-20260424' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux: (21 commits)
Revert "floppy: fix reference leak on platform_device_register() failure"
ublk: avoid unpinning pages under maple tree spinlock
ublk: refactor common helper ublk_shmem_remove_ranges()
ublk: fix maple tree lockdep warning in ublk_buf_cleanup
selftests: ublk: add ublk auto integrity test
selftests: ublk: enable test_integrity_02.sh on fio 3.42
selftests: ublk: remove unused argument to _cleanup
block: only restrict bio allocation gfp mask asked to block
block/blk-throttle: Add WQ_PERCPU to alloc_workqueue users
block: Add WQ_PERCPU to alloc_workqueue users
block: relax pgmap check in bio_add_page for compatible zone device pages
block: add pgmap check to biovec_phys_mergeable
floppy: fix reference leak on platform_device_register() failure
ublk: use unchecked copy helpers for bio page data
t10-pi: reduce ref tag code duplication
zloop: remove irq-safe locking
zloop: factor out zloop_mark_{full,empty} helpers
zloop: set RQF_QUIET when completing requests on deleted devices
zloop: improve the unaligned write pointer warning
zloop: use vfs_truncate
...
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git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux
Pull io_uring fixes from Jens Axboe:
- Fix for a NOMMU bug with io_uring, where NOMMU doesn't grab page refs
at mmap time. NOMMU also has entirely broken FOLL_PIN support, yet
here we are
- A few fixes covering minor issues introduced in this merge window
- data race annotation to shut up KCSAN for when io-wq limits are
applied
- A nospec addition for direct descriptor file updating. Rest of the
direct descriptor path already had this, but for some reason the
update did not. Now they are all the same
- Various minor defensive changes that claude identified and suggested
terrible fixes for, turned into actually useful cleanups:
- Use kvfree() for the imu cache. These can come from kmalloc or
vmalloc depending on size, but the in-cache ones are capped
where it's always kmalloc based. Change to kvfree() in the
cleanup path, making future changes unlikely to mess that up
- Negative kbuf consumption lengths. Can't happen right now, but
cqe->res is used directly, which if other codes changes could
then be an error value
- Fix for an issue with the futex code, where partial wakes on a
vectored fuxes would potentially wake the same futex twice, rather
than move on to the next one. This could confuse an application as it
would've expected the next futex to have been woken
- Fix for a bug with ring resizing, where SQEs or CQEs might not have
been copied correctly if large SQEs or CQEs are used in the ring.
Application side issue, where SQEs or CQEs might have been lost
during resize
- Fix for a bug where EPOLL_URING_WAKE might have been lost, causing a
multishot poll to not be terminated when it's nested, like it should
have been
- Fix for an issue with signed comparison of poll references for the
slow path
- Fix for a user struct UAF in the zcrx code
- Two minor zcrx cleanups
* tag 'io_uring-7.1-20260424' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux:
io_uring: take page references for NOMMU pbuf_ring mmaps
io_uring/poll: ensure EPOLL_ONESHOT is propagated for EPOLL_URING_WAKE
io_uring/zcrx: warn on freelist violations
io_uring/zcrx: clear RQ headers on init
io_uring/zcrx: fix user_struct uaf
io_uring/register: fix ring resizing with mixed/large SQEs/CQEs
io_uring/futex: ensure partial wakes are appropriately dequeued
io_uring/rw: add defensive hardening for negative kbuf lengths
io_uring/rsrc: use kvfree() for the imu cache
io_uring/rsrc: unify nospec indexing for direct descriptors
io_uring: fix spurious fput in registered ring path
io_uring: fix iowq_limits data race in tctx node addition
io_uring/tctx: mark io_wq as exiting before error path teardown
io_uring/tctx: check for setup tctx->io_wq before teardown
io_uring/poll: fix signed comparison in io_poll_get_ownership()
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Pull NFS client updates from Trond Myklebust:
"Bugfixes:
- Fix handling of ENOSPC so that if we have to resend writes, they
are written synchronously
- SUNRPC RDMA transport fixes from Chuck
- Several fixes for delegated timestamps in NFSv4.2
- Failure to obtain a directory delegation should not cause stat() to
fail with NFSv4
- Rename was failing to update timestamps when a directory delegation
is held on NFSv4
- Ensure we check rsize/wsize after crossing a NFSv4 filesystem
boundary
- NFSv4/pnfs:
- If the server is down, retry the layout returns on reboot
- Fallback to MDS could result in a short write being incorrectly
logged
Cleanups:
- Use memcpy_and_pad in decode_fh"
* tag 'nfs-for-7.1-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: (21 commits)
NFS: Fix RCU dereference of cl_xprt in nfs_compare_super_address
NFS: remove redundant __private attribute from nfs_page_class
NFSv4.2: fix CLONE/COPY attrs in presence of delegated attributes
NFS: fix writeback in presence of errors
nfs: use memcpy_and_pad in decode_fh
NFSv4.1: Apply session size limits on clone path
NFSv4: retry GETATTR if GET_DIR_DELEGATION failed
NFS: fix RENAME attr in presence of directory delegations
pnfs/flexfiles: validate ds_versions_cnt is non-zero
NFS/blocklayout: print each device used for SCSI layouts
xprtrdma: Post receive buffers after RPC completion
xprtrdma: Scale receive batch size with credit window
xprtrdma: Replace rpcrdma_mr_seg with xdr_buf cursor
xprtrdma: Decouple frwr_wp_create from frwr_map
xprtrdma: Close lost-wakeup race in xprt_rdma_alloc_slot
xprtrdma: Avoid 250 ms delay on backlog wakeup
xprtrdma: Close sendctx get/put race that can block a transport
nfs: update inode ctime after removexattr operation
nfs: fix utimensat() for atime with delegated timestamps
NFS: improve "Server wrote zero bytes" error
...
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Pull ceph updates from Ilya Dryomov:
"We have a series from Alex which extends CephFS client metrics with
support for per-subvolume data I/O performance and latency tracking
(metadata operations aren't included) and a good variety of fixes and
cleanups across RBD and CephFS"
* tag 'ceph-for-7.1-rc1' of https://github.com/ceph/ceph-client:
ceph: add subvolume metrics collection and reporting
ceph: parse subvolume_id from InodeStat v9 and store in inode
ceph: handle InodeStat v8 versioned field in reply parsing
libceph: Fix slab-out-of-bounds access in auth message processing
rbd: fix null-ptr-deref when device_add_disk() fails
crush: cleanup in crush_do_rule() method
ceph: clear s_cap_reconnect when ceph_pagelist_encode_32() fails
ceph: only d_add() negative dentries when they are unhashed
libceph: update outdated comment in ceph_sock_write_space()
libceph: Remove obsolete session key alignment logic
ceph: fix num_ops off-by-one when crypto allocation fails
libceph: Prevent potential null-ptr-deref in ceph_handle_auth_reply()
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git://git.kernel.org/pub/scm/linux/kernel/git/linkinjeon/ntfs
Pull ntfs updates from Namjae Jeon:
- Fix potential data leakage by zeroing the portion of the straddle
block beyond initialized_size when reading non-resident attributes
- Remove unnecessary zeroing in ntfs_punch_hole() for ranges beyond
initialized_size, as they are already returned as zeros on read
- Fix writable check in ntfs_file_mmap_prepare() to correctly handle
shared mappings using VMA_SHARED_BIT | VMA_MAYWRITE_BIT
- Use page allocation instead of kmemdup() for IOMAP_INLINE data to
ensure page-aligned address and avoid BUG trap in
iomap_inline_data_valid() caused by the page boundary check
- Add a size check before memory allocation in ntfs_attr_readall() and
reject overly large attributes
- Remove unneeded noop_direct_IO from ntfs_aops as it is no longer
required following the FMODE_CAN_ODIRECT flag
- Fix seven static analysis warnings reported by Smatch
* tag 'ntfs-for-7.1-rc1-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/linkinjeon/ntfs:
ntfs: use page allocation for resident attribute inline data
ntfs: fix mmap_prepare writable check for shared mappings
ntfs: fix potential 32-bit truncation in ntfs_write_cb()
ntfs: fix uninitialized variable in ntfs_map_runlist_nolock
ntfs: delete dead code
ntfs: add missing error code in ntfs_mft_record_alloc()
ntfs: fix uninitialized variables in ntfs_ea_set_wsl_inode()
ntfs: fix uninitialized pointer in ntfs_write_mft_block
ntfs: fix uninitialized variable in ntfs_write_simple_iomap_begin_non_resident
ntfs: remove noop_direct_IO from address_space_operations
ntfs: limit memory allocation in ntfs_attr_readall
ntfs: not zero out range beyond init in punch_hole
ntfs: zero out stale data in straddle block beyond initialized_size
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Pull 9p updates from Dominique Martinet:
- 9p access flag fix (cannot change access flag since new mount API implem)
- some minor cleanup
* tag '9p-for-7.1-rc1' of https://github.com/martinetd/linux:
9p/trans_xen: replace simple_strto* with kstrtouint
9p/trans_xen: make cleanup idempotent after dataring alloc errors
9p: document missing enum values in kernel-doc comments
9p: fix access mode flags being ORed instead of replaced
9p: fix memory leak in v9fs_init_fs_context error path
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx
Pull SPDX update from Greg KH:
"Here is a single SPDX-like change for 7.1-rc1. It explicitly allows
the use of SPDX-FileCopyrightText which has been used already in many
files.
At the same time, update checkpatch to catch any "non allowed" spdx
identifiers as we don't want to go overboard here.
This has been in linux-next for a long time with no reported problems"
* tag 'spdx-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx:
LICENSES: Explicitly allow SPDX-FileCopyrightText
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char / misc / IIO / and others driver updates from Greg KH:
"Here is the char/misc/iio and other smaller driver subsystem updates
for 7.1-rc1. Lots of stuff in here, all tiny, but relevant for the
different drivers they touch. Major points in here is:
- the usual large set of new IIO drivers and updates for that
subsystem (the large majority of this diffstat)
- lots of comedi driver updates and bugfixes
- coresight driver updates
- interconnect driver updates and additions
- mei driver updates
- binder (both rust and C versions) updates and fixes
- lots of other smaller driver subsystem updates and additions
All of these have been in linux-next for a while with no reported
issues"
* tag 'char-misc-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (405 commits)
coresight: tpdm: fix invalid MMIO access issue
mei: me: add nova lake point H DID
mei: lb: add late binding version 2
mei: bus: add mei_cldev_uuid
w1: ds2490: drop redundant device reference
bus: mhi: host: pci_generic: Add Telit FE912C04 modem support
mei: csc: wake device while reading firmware status
mei: csc: support controller with separate PCI device
mei: convert PCI error to common errno
mei: trace: print return value of pci_cfg_read
mei: me: move trace into firmware status read
mei: fix idle print specifiers
mei: me: use PCI_DEVICE_DATA macro
sonypi: Convert ACPI driver to a platform one
misc: apds990x: fix all kernel-doc warnings
most: usb: Use kzalloc_objs for endpoint address array
hpet: Convert ACPI driver to a platform one
misc: vmw_vmci: Fix spelling mistakes in comments
parport: Remove completed item from to-do list
char: remove unnecessary module_init/exit functions
...
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi fixes from Mark Brown:
"This is quite a big set of fixes, almost all from Johan Hovold who is
on an ongoing quest to clean up issues with probe and removal handling
in drivers.
There isn't anything too concerning here especially with the
deregistration stuff which will very rarely get run in production
systems since this is all platform devices in the SoC on embedded
hardware, but it's all real issues which should be fixed. There's more
in flight here.
We also have a few other minor fixes, one from Felix Gu along the same
lines as Johan's work and a couple of documentation things"
* tag 'spi-fix-v7.1-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (23 commits)
spi: fix controller cleanup() documentation
spi: fix resource leaks on device setup failure
spi: axiado: clean up probe return value
spi: axiado: rename probe error labels
spi: axiado: fix runtime pm imbalance on probe failure
spi: orion: clean up probe return value
spi: orion: fix clock imbalance on registration failure
spi: orion: fix runtime pm leak on unbind
spi: imx: fix runtime pm leak on probe deferral
spi: mpc52xx: fix use-after-free on registration failure
spi: Fix the error description in the `ptp_sts_word_post` comment
spi: topcliff-pch: fix use-after-free on unbind
spi: topcliff-pch: fix controller deregistration
spi: orion: fix controller deregistration
spi: mxic: fix controller deregistration
spi: mpc52xx: fix use-after-free on unbind
spi: mpc52xx: fix controller deregistration
spi: cadence-quadspi: fix controller deregistration
spi: cadence: fix controller deregistration
spi: mtk-snfi: fix memory leak in probe
...
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator
Pull regulator fix from Mark Brown:
"Just one trivial cleanup of the user visible prompts in Kconfig here,
standardising how we describe Qualcomm"
* tag 'regulator-fix-v7.1-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
regulator: qcom: Unify user-visible "Qualcomm" name
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Since the cpu_buffer->reader_page is updated if there are unwound
pages. After that update, we should skip the page if it is the
original reader_page, because the original reader_page is already
checked.
Cc: stable@vger.kernel.org
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Ian Rogers <irogers@google.com>
Link: https://patch.msgid.link/177701353063.2223789.1471163147644103306.stgit@mhiramat.tok.corp.google.com
Fixes: ca296d32ece3 ("tracing: ring_buffer: Rewind persistent ring buffer on reboot")
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap
Pull regmap fixes from Mark Brown:
"There's couple of patches here that came in since my pull request:
- What is effectively a quirk for shoehorning support for a wider
range of I2C regmaps on weirdly restricted SMBus controllers
- One minor fix for a memory leak on in error handling in the dummy
driver used by the KUnit tests"
* tag 'regmap-fix-v7.1-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
regmap: ram: fix memory leaks in __regmap_init_ram() on error
regmap-i2c: add SMBus byte/word reg16 bus for adapters lacking I2C_FUNC_I2C
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git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux
Pull gpio fixes from Bartosz Golaszewski:
- fix a regression in gpio-rockchip introduced on older chips during
the merge window when converting to dynamic GPIO base
- fix AST2700 debounce selector bit definitions in gpio-aspeed
* tag 'gpio-fixes-for-v7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
gpio: aspeed: fix AST2700 debounce selector bit definitions
gpio: rockchip: Fix GPIO regression after conversion to dynamic base allocation
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"Here are the rest of small updates for 7.1-rc1. All small fixes mostly
for device-specific issues or regressions.
Core:
- Fix a potential data race in fasync handling
USB-audio:
- New device support: Line6 POD HD PRO, NexiGo N930W webcam
- Fixes for Audio Advantage Micro II SPDIF switch and E-MU sample
rates
- Limit UAC2 rate parsing to prevent potential overflows
HD-Audio:
- Device-specific quirks for HP, Acer, and Honor laptops
- Fix for TAS2781 SPI device abnormal sound
- Move Intel firmware loading into probe work to avoid stalling
ASoC:
- New support for TI TAS5832
- Fixes for SoundWire SDCA/DisCo boolean parsing
- Driver-specific fixes for Intel SOF, ES8311, RT1320, and PXA2xx
Misc:
- Fixes for resource leaks and data races in 6fire, caiaq, als4000,
and pcmtest drivers"
* tag 'sound-fix-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (41 commits)
Revert "ALSA: pcmtest: fix reference leak on failed device registration"
ASoC: tas2781: Add tas5832 support
ASoC: dt-bindings: ti,tas2781: Add TAS5832 support
ALSA: usb-audio: Fix Audio Advantage Micro II SPDIF switch
ALSA: usb-audio: Avoid false E-MU sample-rate notifications
ASoC: sdw_utils: cs42l43: allow spk component names to be combined
ASoC: qcom: x1e80100: limit speaker volumes
ALSA: hda/realtek - Add mute LED support for HP Victus 15-fa2xxx
ALSA: pcmtest: Fix resource leaks in module init error paths
ALSA: usb-audio/line6: Add support for POD HD PRO
ALSA: hda/realtek: Add LED fixup for HP EliteBook 6 G2a Laptops
ASoC: SDCA: Fix reading of mipi-sdca-control-deferrable
regmap: sdw-mbq: Allow defers on undeferrable controls
Revert "ALSA: usb-audio: Add quirk for SmartlinkTechnology M01"
ALSA: als4000: Fix capture trigger chip->mode race
ALSA: core: Fix potential data race at fasync handling
ALSA: hda/tas2781: Fix sound abnormal issue on some SPI device
ALSA: hda/realtek: add quirk for Acer Nitro 16 AN16-41
ALSA: caiaq: Fix control_put() result and cache rollback
ALSA: pcmtest: fix reference leak on failed device registration
...
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Pull more drm fixes from Dave Airlie:
"These are the regular fixes that have built up over last couple of
weeks, all pretty minor and spread all over.
atomic:
- raise the vblank timeout to avoid it on virtual drivers
- fix colorop duplication
bridge:
- stm_lvds: state check fix
- dw-mipi-dsi: bridge reference leak fix
panel:
- visionx-rm69299: init fix
dma-fence:
- fix sparse warning
dma-buf:
- UAF fix
panthor:
- mapping fix
arcgpu:
- device_node reference leak fix
nouveau:
- memory leak in error path fix
- overflow in reloc path for old hw fix
hv:
- Kconfig fix
v3d:
- infinite loop fix"
* tag 'drm-fixes-2026-04-24' of https://gitlab.freedesktop.org/drm/kernel:
drm/nouveau: fix u32 overflow in pushbuf reloc bounds check
MAINTAINERS: split hisilicon maintenance and add Yongbang Shi for hibmc-drm matainers
drm/v3d: Reject empty multisync extension to prevent infinite loop
drm/panel: visionox-rm69299: Make use of prepare_prev_first
drm/drm_atomic: duplicate colorop states if plane color pipeline in use
drm/nouveau: fix nvkm_device leak on aperture removal failure
hv: Select CONFIG_SYSFB only for CONFIG_HYPERV_VMBUS
dma-fence: Silence sparse warning in dma_fence_describe
drm/bridge: dw-mipi-dsi: Fix bridge leak when host attach fails
drm/arcpgu: fix device node leak
drm/panthor: Fix outdated function documentation
drm/panthor: Extend VM locked region for remap case to be a superset
dma-buf: fix UAF in dma_buf_put() tracepoint
drm/bridge: stm_lvds: Do not fail atomic_check on disabled connector
drm/atomic: Increase timeout in drm_atomic_helper_wait_for_vblanks()
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Pull drm next fixes from Dave Airlie:
"This is the first of two fixes for the merge PRs, the other is based
on 7.0 branch. This mostly AMD fixes, a couple of weeks of backlog
built up and this weeks. The main complaint I've seen is some boot
warnings around the FP code handling which this should fix. Otherwise
a single rcar-du and a single i915 fix.
amdgpu:
- SMU 14 fixes
- Partition fixes
- SMUIO 15.x fix
- SR-IOV fixes
- JPEG fix
- PSP 15.x fix
- NBIF fix
- Devcoredump fixes
- DPC fix
- RAS fixes
- Aldebaran smu fix
- IP discovery fix
- SDMA 7.1 fix
- Runtime pm fix
- MES 12.1 fix
- DML2 fixes
- DCN 4.2 fixes
- YCbCr fixes
- Freesync fixes
- ISM fixes
- Overlay cursor fix
- DC FP fixes
- UserQ locking fixes
- DC idle state manager fix
- ASPM fix
- GPUVM SVM fix
- DCE 6 fix
amdkfd:
- Fix memory clear handling
- num_of_nodes bounds check fix
i915:
- Fix uninitialized variable in the alignment loop [psr]
rcar-du:
- fix NULL-ptr crash"
* tag 'drm-next-2026-04-24' of https://gitlab.freedesktop.org/drm/kernel: (75 commits)
drm/amdkfd: Add upper bound check for num_of_nodes
drm: rcar-du: Fix crash when no CMM is available
drm/amd/display: Disable 10-bit truncation and dithering on DCE 6.x
drm/amdgpu: OR init_pte_flags into invalid leaf PTE updates
drm/amd: Adjust ASPM support quirk to cover more Intel hosts
drm/amd/display: Undo accidental fix revert in amdgpu_dm_ism.c
drm/i915/psr: Init variable to avoid early exit from et alignment loop
drm/amdgpu: drop userq fence driver refs out of fence process()
drm/amdgpu/userq: unpin and unref doorbell and wptr outside mutex
drm/amdgpu/userq: use pm_runtime_resume_and_get and fix err handling
drm/amdgpu/userq: unmap_helper dont return the queue state
drm/amdgpu/userq: unmap is to be called before freeing doorbell/wptr bo
drm/amdgpu/userq: hold root bo lock in caller of input_va_validate
drm/amdgpu/userq: caller to take reserv lock for vas_list_cleanup
drm/amdgpu/userq: create_mqd does not need userq_mutex
drm/amdgpu/userq: dont lock root bo with userq_mutex held
drm/amdgpu/userq: fix kerneldoc for amdgpu_userq_ensure_ev_fence
drm/amdgpu/userq: clean the VA mapping list for failed queue creation
drm/amdgpu/userq: avoid uneccessary locking in amdgpu_userq_create
drm/amd/display: Fix ISM teardown crash from NULL dc dereference
...
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull locking fixes from Ingo Molnar:
- Fix ww_mutex regression, which caused hangs/pauses in some DRM drivers
- Fix rtmutex proxy-rollback bug
* tag 'locking-urgent-2026-04-24' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
locking/mutex: Fix ww_mutex wait_list operations
rtmutex: Use waiter::task instead of current in remove_waiter()
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Ingo Molnar:
- Prevent deadlock during shstk sigreturn (Rick Edgecombe)
- Disable FRED when PTI is forced on (Dave Hansen)
- Revert a CPA INVLPGB optimization that did not properly handle
discontiguous virtual addresses (Dave Hansen)
* tag 'x86-urgent-2026-04-24' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/mm: Revert INVLPGB optimization for set_memory code
x86/cpu: Disable FRED when PTI is forced on
x86/shstk: Prevent deadlock during shstk sigreturn
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git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull RISC-V updates from Paul Walmsley:
"There is one significant change outside arch/riscv in this pull
request: the addition of a set of KUnit tests for strlen(), strnlen(),
and strrchr().
Otherwise, the most notable changes are to add some RISC-V-specific
string function implementations, to remove XIP kernel support, to add
hardware error exception handling, and to optimize our runtime
unaligned access speed testing.
A few comments on the motivation for removing XIP support. It's been
broken in the RISC-V kernel for months. The code is not easy to
maintain. Furthermore, for XIP support to truly be useful for RISC-V,
we think that compile-time feature switches would need to be added for
many of the RISC-V ISA features and microarchitectural properties that
are currently implemented with runtime patching. No one has stepped
forward to take responsibility for that work, so many of us think it's
best to remove it until clear use cases and champions emerge.
Summary:
- Add Kunit correctness testing and microbenchmarks for strlen(),
strnlen(), and strrchr()
- Add RISC-V-specific strnlen(), strchr(), strrchr() implementations
- Add hardware error exception handling
- Clean up and optimize our unaligned access probe code
- Enable HAVE_IOREMAP_PROT to be able to use generic_access_phys()
- Remove XIP kernel support
- Warn when addresses outside the vmemmap range are passed to
vmemmap_populate()
- Update the ACPI FADT revision check to warn if it's not at least
ACPI v6.6, which is when key RISC-V-specific tables were added to
the specification
- Increase COMMAND_LINE_SIZE to 2048 to match ARM64, x86, PowerPC,
etc.
- Make kaslr_offset() a static inline function, since there's no need
for it to show up in the symbol table
- Add KASLR offset and SATP to the VMCOREINFO ELF notes to improve
kdump support
- Add Makefile cleanup rule for vdso_cfi copied source files, and add
a .gitignore for the build artifacts in that directory
- Remove some redundant ifdefs that check Kconfig macros
- Add missing SPDX license tag to the CFI selftest
- Simplify UTS_MACHINE assignment in the RISC-V Makefile
- Clarify some unclear comments and remove some superfluous comments
- Fix various English typos across the RISC-V codebase"
* tag 'riscv-for-linus-7.1-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: (31 commits)
riscv: Remove support for XIP kernel
riscv: Reuse compare_unaligned_access() in check_vector_unaligned_access()
riscv: Split out compare_unaligned_access()
riscv: Reuse measure_cycles() in check_vector_unaligned_access()
riscv: Split out measure_cycles() for reuse
riscv: Clean up & optimize unaligned scalar access probe
riscv: lib: add strrchr() implementation
riscv: lib: add strchr() implementation
riscv: lib: add strnlen() implementation
lib/string_kunit: extend benchmarks to strnlen() and chr searches
lib/string_kunit: add performance benchmark for strlen()
lib/string_kunit: add correctness test for strrchr()
lib/string_kunit: add correctness test for strnlen()
lib/string_kunit: add correctness test for strlen()
riscv: vdso_cfi: Add .gitignore for build artifacts
riscv: vdso_cfi: Add clean rule for copied sources
riscv: enable HAVE_IOREMAP_PROT
riscv: mm: WARN_ON() for bad addresses in vmemmap_populate()
riscv: acpi: update FADT revision check to 6.6
riscv: add hardware error trap handler support
...
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git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
Pull LoongArch updates from Huacai Chen:
- Adjust build infrastructure for 32BIT/64BIT
- Add HIGHMEM (PKMAP and FIX_KMAP) support
- Show and handle CPU vulnerabilites correctly
- Batch the icache maintenance for jump_label
- Add more atomic instructions support for BPF JIT
- Add more features (e.g. fsession) support for BPF trampoline
- Some bug fixes and other small changes
* tag 'loongarch-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson: (21 commits)
selftests/bpf: Enable CAN_USE_LOAD_ACQ_STORE_REL for LoongArch
LoongArch: BPF: Add fsession support for trampolines
LoongArch: BPF: Introduce emit_store_stack_imm64() helper
LoongArch: BPF: Support up to 12 function arguments for trampoline
LoongArch: BPF: Support small struct arguments for trampoline
LoongArch: BPF: Open code and remove invoke_bpf_mod_ret()
LoongArch: BPF: Support load-acquire and store-release instructions
LoongArch: BPF: Support 8 and 16 bit read-modify-write instructions
LoongArch: BPF: Add the default case in emit_atomic() and rename it
LoongArch: Define instruction formats for AM{SWAP/ADD}.{B/H} and DBAR
LoongArch: Batch the icache maintenance for jump_label
LoongArch: Add flush_icache_all()/local_flush_icache_all()
LoongArch: Add spectre boundry for syscall dispatch table
LoongArch: Show CPU vulnerabilites correctly
LoongArch: Make arch_irq_work_has_interrupt() true only if IPI HW exist
LoongArch: Use get_random_canary() for stack canary init
LoongArch: Improve the logging of disabling KASLR
LoongArch: Align FPU register state to 32 bytes
LoongArch: Handle CONFIG_32BIT in syscall_get_arch()
LoongArch: Add HIGHMEM (PKMAP and FIX_KMAP) support
...
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git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking deletions from Jakub Kicinski:
"Delete some obsolete networking code
Old code like amateur radio and NFC have long been a burden to core
networking developers. syzbot loves to find bugs in BKL-era code, and
noobs try to fix them.
If we want to have a fighting chance of surviving the LLM-pocalypse
this code needs to find a dedicated owner or get deleted. We've talked
about these deletions multiple times in the past and every time
someone wanted the code to stay. It is never very clear to me how many
of those people actually use the code vs are just nostalgic to see it
go. Amateur radio did have occasional users (or so I think) but most
users switched to user space implementations since its all super slow
stuff. Nobody stepped up to maintain the kernel code.
We were lucky enough to find someone who wants to help with NFC so
we're giving that a chance. Let's try to put the rest of this code
behind us"
* tag 'net-deletions' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next:
drivers: net: 8390: wd80x3: Remove this driver
drivers: net: 8390: ultra: Remove this driver
drivers: net: 8390: AX88190: Remove this driver
drivers: net: fujitsu: fmvj18x: Remove this driver
drivers: net: smsc: smc91c92: Remove this driver
drivers: net: smsc: smc9194: Remove this driver
drivers: net: amd: nmclan: Remove this driver
drivers: net: amd: lance: Remove this driver
drivers: net: 3com: 3c589: Remove this driver
drivers: net: 3com: 3c574: Remove this driver
drivers: net: 3com: 3c515: Remove this driver
drivers: net: 3com: 3c509: Remove this driver
net: packetengines: remove obsolete yellowfin driver and vendor dir
net: packetengines: remove obsolete hamachi driver
net: remove unused ATM protocols and legacy ATM device drivers
net: remove ax25 and amateur radio (hamradio) subsystem
net: remove ISDN subsystem and Bluetooth CMTP
caif: remove CAIF NETWORK LAYER
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git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab
Pull slab fix from Vlastimil Babka:
- A stable fix for k(v)ealloc() where reallocating on a different node
or shrinking the object can result in either losing the original data
or a buffer overflow (Marco Elver)
* tag 'slab-for-7.1-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab:
slub: fix data loss and overflow in krealloc()
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git://git.kernel.org/pub/scm/linux/kernel/git/nathan/linux
Pull Clang build fix from Nathan Chancellor:
- Wrap declaration and assignment of key_pass in certs/extract-cert.c
with '#ifdef' that matches its only usage to clear up an instance of
a new clang subwarning, -Wunused-but-set-global.
* tag 'clang-fixes-7.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/nathan/linux:
extract-cert: Wrap key_pass with '#ifdef USE_PKCS11_ENGINE'
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git://git.kernel.org/pub/scm/linux/kernel/git/jj/linux-apparmor
Pull apparmor updates from John Johansen:
"Cleanups
- Use sysfs_emit in param_get_{audit,mode}
- Remove redundant if check in sk_peer_get_label
- Replace memcpy + NUL termination with kmemdup_nul in do_setattr
Bug Fixes:
- Fix aa_dfa_unpack's error handling in aa_setup_dfa_engine
- Fix string overrun due to missing termination
- Fix wrong dentry in RENAME_EXCHANGE uid check
- fix unpack_tags to properly return error in failure cases
- fix dfa size check
- return error on namespace mismatch in verify_header
- use target task's context in apparmor_getprocattr()"
* tag 'apparmor-pr-2026-04-23' of git://git.kernel.org/pub/scm/linux/kernel/git/jj/linux-apparmor:
apparmor/lsm: Fix aa_dfa_unpack's error handling in aa_setup_dfa_engine
apparmor: Fix string overrun due to missing termination
apparmor: Fix wrong dentry in RENAME_EXCHANGE uid check
apparmor: fix unpack_tags to properly return error in failure cases
apparmor: fix dfa size check
apparmor: Use sysfs_emit in param_get_{audit,mode}
apparmor: Remove redundant if check in sk_peer_get_label
apparmor: Replace memcpy + NUL termination with kmemdup_nul in do_setattr
apparmor: return error on namespace mismatch in verify_header
apparmor: use target task's context in apparmor_getprocattr()
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tl;dr: Revert an INVLPGB optimization that did not properly handle
discontiguous virtual addresses.
Full story:
I got a report from some graphics (i915) folks that bisected a
regression in their test suite to 86e6815b316e ("x86/mm: Change
cpa_flush() to call flush_kernel_range() directly"). There was a bit
of flip-flopping on the exact bisect, but the code here does seem
wrong to me. The i915 folks were calling set_pages_array_wc(), so
using the CPA_PAGES_ARRAY mode.
Basically, the 'struct cpa_data' can wrap up all kinds of page table
changes. Some of these are virtually contiguous, but some are very
much not which is one reason why there are ->vaddr and ->pages arrays.
86e6815b316e made the mistake of assuming that the virtual addresses
in the cpa_data are always contiguous. It got things right when neither
CPA_ARRAY/CPA_PAGES_ARRAY is used, but theoretically wrong when either
of those is used.
In the i915 case, it probably failed to flush some WB TLB entries and
install WC ones, leaving some data in the caches and not flushing it
out to where the device could see it. That eventually caused graphics
problems.
Revert the INVLPGB optimization. It can be reintroduced later, but it
will need to be a bit careful about the array modes.
Fixes: 86e6815b316ec ("x86/mm: Change cpa_flush() to call flush_kernel_range()")
Reported-by: Cui, Ling <ling.cui@intel.com>
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: Rick Edgecombe <rick.p.edgecombe@intel.com>
Reviewed-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Link: https://patch.msgid.link/20260421151909.6B3281C6@davehans-spike.ostc.intel.com
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https://gitlab.freedesktop.org/drm/misc/kernel into drm-fixes
This week in drm-misc-fixes, we have:
- A patch to raise the vblank timeout to avoid it on virtual drivers
- a state check fix for stm_lvds
- a use-after-free fix for dma-buf
- a mapping fix for panthor
- a device_node reference leak fix for arcgpu
- a bridge reference leak fix for dw-mipi-dsi
- a sparse warning fix for dma-fence
- a kconfig fix for hv
- a memory leak fix for nouveau
- a fix to duplicate colorop when duplicating states
- a panel initialisation order fix for visionox-rm69299
- a fix to prevent an infinite loop for v3d
- an overflow fix for nouveau
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maxime Ripard <mripard@redhat.com>
Link: https://patch.msgid.link/20260423-realistic-eager-reindeer-4dacf7@houat
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git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull vfs fixes from Christian Brauner:
- eventpoll: fix ep_remove() UAF and follow-up cleanup
- fs: aio: set VMA_DONTCOPY_BIT in mmap to fix NULL-pointer-dereference
error
- writeback: Fix use after free in inode_switch_wbs_work_fn()
- fuse: reject oversized dirents in page cache
- fs: aio: reject partial mremap to avoid Null-pointer-dereference
error
- nstree: fix func. parameter kernel-doc warnings
- fs: Handle multiply claimed blocks more gracefully with mmb
* tag 'vfs-7.1-rc1.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
eventpoll: drop vestigial epi->dying flag
eventpoll: drop dead bool return from ep_remove_epi()
eventpoll: refresh eventpoll_release() fast-path comment
eventpoll: move f_lock acquisition into ep_remove_file()
eventpoll: fix ep_remove struct eventpoll / struct file UAF
eventpoll: move epi_fget() up
eventpoll: rename ep_remove_safe() back to ep_remove()
eventpoll: drop vestigial __ prefix from ep_remove_{file,epi}()
eventpoll: kill __ep_remove()
eventpoll: split __ep_remove()
eventpoll: use hlist_is_singular_node() in __ep_remove()
fs: Handle multiply claimed blocks more gracefully with mmb
nstree: fix func. parameter kernel-doc warnings
fs: aio: reject partial mremap to avoid Null-pointer-dereference error
fuse: reject oversized dirents in page cache
writeback: Fix use after free in inode_switch_wbs_work_fn()
fs: aio: set VMA_DONTCOPY_BIT in mmap to fix NULL-pointer-dereference error
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Pull more smb server updates from Steve French:
- move fs/smb/common/smbdirect to fs/smb/smbdirect
- change signature calc to use AES-CMAC library, simpler and faster
- invalid signature fix
- multichannel fix
- open create options fix
- fix durable handle leak
- cap maximum lock count to avoid potential denial of service
- four connection fixes: connection free and session destroy IDA fixes,
refcount fix, connection leak fix, max_connections off by one fix
- IPC validation fix
- fix out of bounds write in getting xattrs
- fix use after free in durable handle reconnect
- three ACL fixes: fix potential ACL overflow, harden num_aces check,
and fix minimum ACE size check
* tag 'v7.1-rc-part2-ksmbd-fixes' of git://git.samba.org/ksmbd:
smb: smbdirect: move fs/smb/common/smbdirect/ to fs/smb/smbdirect/
smb: server: stop sending fake security descriptors
ksmbd: scope conn->binding slowpath to bound sessions only
ksmbd: fix CreateOptions sanitization clobbering the whole field
ksmbd: fix durable fd leak on ClientGUID mismatch in durable v2 open
ksmbd: fix O(N^2) DoS in smb2_lock via unbounded LockCount
ksmbd: destroy async_ida in ksmbd_conn_free()
ksmbd: destroy tree_conn_ida in ksmbd_session_destroy()
ksmbd: Use AES-CMAC library for SMB3 signature calculation
ksmbd: reset rcount per connection in ksmbd_conn_wait_idle_sess_id()
ksmbd: fix out-of-bounds write in smb2_get_ea() EA alignment
ksmbd: use check_add_overflow() to prevent u16 DACL size overflow
ksmbd: fix use-after-free in smb2_open during durable reconnect
ksmbd: validate num_aces and harden ACE walk in smb_inherit_dacl()
smb: server: fix max_connections off-by-one in tcp accept path
ksmbd: require minimum ACE size in smb_check_perm_dacl()
ksmbd: validate response sizes in ipc_validate_msg()
smb: server: fix active_num_conn leak on transport allocation failure
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git://git.samba.org/sfrench/cifs-2.6
Pull smb client fixes from Steve French:
- Four bug fixes: OOB read in ioctl query info, 3 ACL fixes
- SMB1 Unix extensions mount fix
- Four crypto improvements: move to AES-CMAC library, simpler and faster
- Remove drop_dir_cache to avoid potential crash, and move to /procfs
- Seven SMB3.1.1 compression fixes
* tag 'v7.1-rc1-part3-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6:
smb: client: Drop 'allocate_crypto' arg from smb*_calc_signature()
smb: client: Make generate_key() return void
smb: client: Remove obsolete cmac(aes) allocation
smb: client: Use AES-CMAC library for SMB3 signature calculation
smb: common: add SMB3_COMPRESS_MAX_ALGS
smb: client: compress: add code docs to lz77.c
smb: client: compress: LZ77 optimizations
smb: client: compress: increase LZ77_MATCH_MAX_DIST
smb: client: compress: fix counting in LZ77 match finding
smb: client: compress: fix buffer overrun in lz77_compress()
smb: client: scope end_of_dacl to CIFS_DEBUG2 use in parse_dacl
smb: client: fix (remove) drop_dir_cache module parameter
smb: client: require a full NFS mode SID before reading mode bits
smb: client: validate the whole DACL before rewriting it in cifsacl
smb: client: fix OOB read in smb2_ioctl_query_info QUERY_INFO path
cifs: update internal module version number
smb: client: compress: fix bad encoding on last LZ77 flag
smb: client: fix dir separator in SMB1 UNIX mounts
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git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Including fixes from Netfilter.
Steady stream of fixes. Last two weeks feel comparable to the two
weeks before the merge window. Lots of AI-aided bug discovery. A newer
big source is Sashiko/Gemini (Roman Gushchin's system), which points
out issues in existing code during patch review (maybe 25% of fixes
here likely originating from Sashiko). Nice thing is these are often
fixed by the respective maintainers, not drive-bys.
Current release - new code bugs:
- kconfig: MDIO_PIC64HPSC should depend on ARCH_MICROCHIP
Previous releases - regressions:
- add async ndo_set_rx_mode and switch drivers which we promised to
be called under the per-netdev mutex to it
- dsa: remove duplicate netdev_lock_ops() for conduit ethtool ops
- hv_sock: report EOF instead of -EIO for FIN
- vsock/virtio: fix MSG_PEEK calculation on bytes to copy
Previous releases - always broken:
- ipv6: fix possible UAF in icmpv6_rcv()
- icmp: validate reply type before using icmp_pointers
- af_unix: drop all SCM attributes for SOCKMAP
- netfilter: fix a number of bugs in the osf (OS fingerprinting)
- eth: intel: fix timestamp interrupt configuration for E825C
Misc:
- bunch of data-race annotations"
* tag 'net-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (148 commits)
rxrpc: Fix error handling in rxgk_extract_token()
rxrpc: Fix re-decryption of RESPONSE packets
rxrpc: Fix rxrpc_input_call_event() to only unshare DATA packets
rxrpc: Fix missing validation of ticket length in non-XDR key preparsing
rxgk: Fix potential integer overflow in length check
rxrpc: Fix conn-level packet handling to unshare RESPONSE packets
rxrpc: Fix potential UAF after skb_unshare() failure
rxrpc: Fix rxkad crypto unalignment handling
rxrpc: Fix memory leaks in rxkad_verify_response()
net: rds: fix MR cleanup on copy error
m68k: mvme147: Make me the maintainer
net: txgbe: fix firmware version check
selftests/bpf: check epoll readiness during reuseport migration
tcp: call sk_data_ready() after listener migration
vhost_net: fix sleeping with preempt-disabled in vhost_net_busy_poll()
ipv6: Cap TLV scan in ip6_tnl_parse_tlv_enc_lim
tipc: fix double-free in tipc_buf_append()
llc: Return -EINPROGRESS from llc_ui_connect()
ipv4: icmp: validate reply type before using icmp_pointers
selftests/net: packetdrill: cover RFC 5961 5.2 challenge ACK on both edges
...
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git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull more i2c updates from Wolfram Sang:
- cx92755: convert I2C bindings to DT schema
- mediatek: add optional bus power management during transfers
- pxa: handle early bus busy condition
- MAINTAINERS: update I2C RUST entry
* tag 'i2c-for-7.1-rc1-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
MAINTAINERS: add Rust I2C tree and update Igor Korotin's email
i2c: mediatek: add bus regulator control for power saving
dt-bindings: i2c: cnxt,cx92755-i2c: Convert to DT schema
i2c: pxa: handle 'Early Bus Busy' condition on Armada 3700
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Pull Xtensa updates from Max Filippov:
- use register_sys_off_handler(SYS_OFF_MODE_RESTART) instead of
the deprecated register_restart_handler()
- drop custom ucontext.h and reuse asm-generic ucontext.h
* tag 'xtensa-20260422' of https://github.com/jcmvbkbc/linux-xtensa:
xtensa: uapi: Reuse asm-generic ucontext.h
xtensa: xtfpga: Use register_sys_off_handler(SYS_OFF_MODE_RESTART)
xtensa: xt2000: Use register_sys_off_handler(SYS_OFF_MODE_RESTART)
xtensa: ISS: Use register_sys_off_handler(SYS_OFF_MODE_RESTART)
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https://gitlab.freedesktop.org/agd5f/linux into drm-next
amd-drm-fixes-7.1-2026-04-23:
amdgpu:
- DC idle state manager fix
- ASPM fix
- GPUVM SVM fix
- DCE 6 fix
amdkfd:
- num_of_nodes bounds check fix
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexander.deucher@amd.com>
Link: https://patch.msgid.link/20260423170129.2345978-1-alexander.deucher@amd.com
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https://gitlab.freedesktop.org/drm/misc/kernel into drm-next
Short summary of fixes pull:
rcar-du:
- fix NULL-ptr crash
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patch.msgid.link/20260423130852.GA114622@linux.fritz.box
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Andrew Lunn says:
====================
Remove a number of ISA and PCMCIA Ethernet drivers
These old drivers have not been much of a Maintenance burden until
recently. Now there are more newbies using AI and fuzzers finding
issues, resulting in more work for Maintainers. Fixing these old
drivers make little sense, if it is not clear they have users.
These mostly ISA and PCMCIA Ethernet devices, mostly from the last
century, a couple from 2001 or 2002. It seems unlikely they are still
used. However, remove them one patch at a time so they can be brought
back if somebody still has the hardware, runs modern kernels and wants
to take up the roll of driver Maintainer.
====================
Link: https://patch.msgid.link/20260422-v7-0-0-net-next-driver-removal-v1-v2-0-08a5b59784d5@lunn.ch
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The wd80x3 was written by Donald Becker 1993 to 1994. It is an ISA
device, so unlikely to be used with modern kernels.
Acked-by: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/20260422-v7-0-0-net-next-driver-removal-v1-v2-15-08a5b59784d5@lunn.ch
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The ultra was written by Donald Becker 1993 to 1998. It is an ISA
device, so unlikely to be used with modern kernels.
Acked-by: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/20260422-v7-0-0-net-next-driver-removal-v1-v2-14-08a5b59784d5@lunn.ch
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The ax88190 was written by David A. Hinds in 2001. It is an PCMCIA
device, so unlikely to be used with modern kernels.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/20260422-v7-0-0-net-next-driver-removal-v1-v2-12-08a5b59784d5@lunn.ch
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The fmvj18x was written by Shingo Fujimoto in 2002. It is an PCMCIA
device, so unlikely to be used with modern kernels.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/20260422-v7-0-0-net-next-driver-removal-v1-v2-11-08a5b59784d5@lunn.ch
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The smc91c92 was written by David A Hinds in 1999. It is an PCMCIA
device, so unlikely to be used with modern kernels.
Remove the Documentation as well, since it refers to kernel versions
1.2.13 until 1.3.71 and FTP sites which no longer exist.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/20260422-v7-0-0-net-next-driver-removal-v1-v2-8-08a5b59784d5@lunn.ch
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The smc9194 was written by Erik Stahlman in 1996. It is an ISA device,
so unlikely to be used with modern kernels.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/20260422-v7-0-0-net-next-driver-removal-v1-v2-7-08a5b59784d5@lunn.ch
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The nmclan was written by Roger C Pao in 1995. It is an PCMCIA device,
so unlikely to be used with modern kernels.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/20260422-v7-0-0-net-next-driver-removal-v1-v2-6-08a5b59784d5@lunn.ch
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The lance was written by Donald Becker between 1993-1998. It is an ISA
device, so unlikely to be used with modern kernels.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/20260422-v7-0-0-net-next-driver-removal-v1-v2-5-08a5b59784d5@lunn.ch
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The 3c589 was written by David A. Hinds 2001. It is an PCMCIA device,
so unlikely to be used with modern kernels.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/20260422-v7-0-0-net-next-driver-removal-v1-v2-4-08a5b59784d5@lunn.ch
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The 3c574 was written by Donald Becker between 1993-1998. It is
an PCMCIA device, so unlikely to be used with modern kernels.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/20260422-v7-0-0-net-next-driver-removal-v1-v2-3-08a5b59784d5@lunn.ch
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The 3c515 was written by Donald Becker between 1997-1998. It is an ISA
device, so unlikely to be used with modern kernels.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/20260422-v7-0-0-net-next-driver-removal-v1-v2-2-08a5b59784d5@lunn.ch
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The 3c509 was written by Donald Becker between 1993-2000. It is an ISA
device, so unlikely to be used with modern kernels.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/20260422-v7-0-0-net-next-driver-removal-v1-v2-1-08a5b59784d5@lunn.ch
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Christian Brauner <brauner@kernel.org> says:
ep_remove() (via __ep_remove_file()) cleared file->f_ep under
file->f_lock but then kept using @file in the same critical section:
is_file_epoll(), hlist_del_rcu() through the head, spin_unlock. A
concurrent __fput() on the watched eventpoll caught the transient
NULL in eventpoll_release()'s lockless fast path, skipped
eventpoll_release_file() entirely, and ran to ep_eventpoll_release()
-> ep_clear_and_put() -> ep_free(). That kfree()s the struct
eventpoll whose embedded ->refs hlist_head is exactly where
epi->fllink.pprev points and the subsequent hlist_del_rcu()'s
"*pprev = next" scribbles into freed kmalloc-192 memory, which is
the slab-use-after-free KASAN caught.
struct file is SLAB_TYPESAFE_BY_RCU on top of that so the same window
also lets the slot recycle while ep_remove() is still nominally
inside file->f_lock. The upshot is an attacker-influencable
kmem_cache_free() against the wrong slab cache.
The comment on eventpoll_release()'s fast path - "False positives
simply cannot happen because the file in on the way to be removed
and nobody ( but eventpoll ) has still a reference to this file" -
was itself the wrong invariant this race exploits.
The fix pins @file via epi_fget() at the top of ep_remove() and
gates the f_ep clear / hlist_del_rcu() on the pin succeeding. With
the pin held __fput() cannot start which transitively keeps the
watched struct eventpoll alive across the critical section and also
prevents the struct file slot from recycling. Both UAFs are closed.
If the pin fails __fput() is already in flight on @file. Because we
bail before clearing f_ep that path takes eventpoll_release()'s slow
path into eventpoll_release_file() which blocks on ep->mtx until
ep_clear_and_put() drops it and then cleans up the orphaned epi. The
bailed epi's share of ep->refcount stays intact so
ep_clear_and_put()'s trailing ep_refcount_dec_and_test() cannot free
the eventpoll out from under eventpoll_release_file().
With epi_fget() now gating every ep_remove() call the epi->dying
flag becomes vestigial. epi->dying == true always coincides with
file_ref_get() == false because __fput() is reachable only once the
refcount hits zero and the refcount is monotone there. The last
patch drops the flag and leaves a single coordination mechanism
instead of two.
* patches from https://patch.msgid.link/20260423-work-epoll-uaf-v1-0-2470f9eec0f5@kernel.org:
eventpoll: drop vestigial epi->dying flag
eventpoll: drop dead bool return from __ep_remove_epi()
eventpoll: refresh eventpoll_release() fast-path comment
eventpoll: move f_lock acquisition into __ep_remove_file()
eventpoll: fix ep_remove struct eventpoll / struct file UAF
eventpoll: move epi_fget() up
eventpoll: rename ep_remove_safe() back to ep_remove()
eventpoll: kill __ep_remove()
eventpoll: split __ep_remove()
eventpoll: use hlist_is_singular_node() in __ep_remove()
Link: https://patch.msgid.link/20260423-work-epoll-uaf-v1-0-2470f9eec0f5@kernel.org
Signed-off-by: Christian Brauner <brauner@kernel.org>
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With ep_remove() now pinning @file via epi_fget() across the
f_ep clear and hlist_del_rcu(), the dying flag no longer
orchestrates anything: it was set in eventpoll_release_file()
(which only runs from __fput(), i.e. after @file's refcount has
reached zero) and read in __ep_remove() / ep_remove() as a cheap
bail before attempting the same synchronization epi_fget() now
provides unconditionally.
The implication is simple: epi->dying == true always coincides
with file_ref_get(&file->f_ref) == false, because __fput() is
reachable only once the refcount hits zero and the refcount is
monotone in that state. The READ_ONCE(epi->dying) in ep_remove()
therefore selects exactly the same callers that epi_fget() would
reject, just one atomic cheaper. That's not worth a struct
field, a second coordination mechanism, and the comments on
both.
Refresh the eventpoll_release_file() comment to describe what
actually makes the path race-free now (the pin in ep_remove()).
No functional change: the correctness argument is unchanged,
only the mechanism is now a single one instead of two.
Link: https://patch.msgid.link/20260423-work-epoll-uaf-v1-10-2470f9eec0f5@kernel.org
Signed-off-by: Christian Brauner (Amutable) <brauner@kernel.org>
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