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https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into arm/fixes
Samsung SoC driver fixes for v6.15
1. Exynos ACPM driver (used on Google GS101): Fix timeout due to missing
responses from the firmware part.
2. Samsung USI (serial engines) driver: Correct ineffective
unconfiguring of the interface during probe removal.
* tag 'samsung-fixes-6.15' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux:
soc: samsung: usi: prevent wrong bits inversion during unconfiguring
firmware: exynos-acpm: check saved RX before bailing out on empty RX queue
Link: https://lore.kernel.org/r/20250513101023.21552-5-krzysztof.kozlowski@linaro.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Leaving the CQ critical section in the middle of a overflow flushing
can cause cqe reordering since the cache cq pointers are reset and any
new cqe emitters that might get called in between are not going to be
forced into io_cqe_cache_refill().
Fixes: eac2ca2d682f9 ("io_uring: check if we need to reschedule during overflow flush")
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/90ba817f1a458f091f355f407de1c911d2b93bbf.1747483784.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Commit 4dbd2b2ebe4c ("nvme-multipath: Add visibility for round-robin
io-policy") introduced the creation of the multipath sysfs group under
the NVMe head gendisk device node. However, it also inadvertently added
the same sysfs group under each namespace path device which head node
refers to and that is incorrect.
The multipath sysfs group should only be exposed through the namespace
head gendisk node. This is sufficient, as the head device already
provides symbolic links to the individual namespace paths it manages.
This patch fixes the issue by preventing the creation of the multipath
sysfs group under namespace path devices, ensuring it only appears under
the head disk node.
Fixes: 4dbd2b2ebe4c ("nvme-multipath: Add visibility for round-robin io-policy")
Signed-off-by: Nilay Shroff <nilay@linux.ibm.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
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Commit 5ef44b3cb43b ("xsk: Bring back busy polling support") fixed the
busy polling support in xsk for XDP_ZEROCOPY after it was broken in
commit 86e25f40aa1e ("net: napi: Add napi_config"). The busy polling
support with XDP_COPY remained broken since the napi_id setup in
xsk_rcv_check was removed.
Bring back the setup of napi_id for XDP_COPY so socket level SO_BUSYPOLL
can be used to poll the underlying napi.
Do the setup of napi_id for XDP_COPY in xsk_bind, as it is done
currently for XDP_ZEROCOPY. The setup of napi_id for XDP_COPY in
xsk_bind is safe because xsk_rcv_check checks that the rx queue at which
the packet arrives is equal to the queue_id that was supplied in bind.
This is done for both XDP_COPY and XDP_ZEROCOPY mode.
Tested using AF_XDP support in virtio-net by running the xsk_rr AF_XDP
benchmarking tool shared here:
https://lore.kernel.org/all/20250320163523.3501305-1-skhawaja@google.com/T/
Enabled socket busy polling using following commands in qemu,
```
sudo ethtool -L eth0 combined 1
echo 400 | sudo tee /proc/sys/net/core/busy_read
echo 100 | sudo tee /sys/class/net/eth0/napi_defer_hard_irqs
echo 15000 | sudo tee /sys/class/net/eth0/gro_flush_timeout
```
Fixes: 5ef44b3cb43b ("xsk: Bring back busy polling support")
Signed-off-by: Samiullah Khawaja <skhawaja@google.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Acked-by: Stanislav Fomichev <sdf@fomichev.me>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Allows slcan to receive short messages (typically errors) from the serial
interface.
When error support was added to slcan protocol in
b32ff4668544e1333b694fcc7812b2d7397b4d6a ("can: slcan: extend the protocol
with error info") the minimum valid message size changed from 5 (minimum
standard can frame tIII0) to 3 ("e1a" is a valid protocol message, it is
one of the examples given in the comments for slcan_bump_err() ), but the
check for minimum message length prodicating all decoding was not adjusted.
This makes short error messages discarded and error frames not being
generated.
This patch changes the minimum length to the new minimum (3 characters,
excluding terminator, is now a valid message).
Signed-off-by: Carlos Sanchez <carlossanchez@geotab.com>
Fixes: b32ff4668544 ("can: slcan: extend the protocol with error info")
Reviewed-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Link: https://patch.msgid.link/20250520102305.1097494-1-carlossanchez@geotab.com
Cc: stable@vger.kernel.org
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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Davidlohr Bueso <dave@stgolabs.net> says:
Four small patches - the first could be sent to Linus for v6.15
considering it is a missing nonblocking lookup conversion in the getblk
slowpath I had missed. The other two patches are small optimizations
found while reading the code, and one rocket science cleanup patch.
* patches from https://lore.kernel.org/20250515173925.147823-1-dave@stgolabs.net:
fs/buffer: optimize discard_buffer()
fs/buffer: remove superfluous statements
fs/buffer: avoid redundant lookup in getblk slowpath
fs/buffer: use sleeping lookup in __getblk_slowpath()
Link: https://lore.kernel.org/20250515173925.147823-1-dave@stgolabs.net
Signed-off-by: Christian Brauner <brauner@kernel.org>
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While invalidating, the clearing of the bits in discard_buffer()
is done in one fully ordered CAS operation. In the past this was
done via individual clear_bit(), until e7470ee89f0 (fs: buffer:
do not use unnecessary atomic operations when discarding buffers).
This implies that there were never strong ordering requirements
outside of being serialized by the buffer lock.
As such relax the ordering for archs that can benefit. Further,
the implied ordering in buffer_unlock() makes current cmpxchg
implied barrier redundant due to release semantics. And while in
theory the unlock could be part of the bulk clearing, it is
best to leave it explicit, but without the double barriers.
Signed-off-by: Davidlohr Bueso <dave@stgolabs.net>
Link: https://lore.kernel.org/20250515173925.147823-5-dave@stgolabs.net
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Christian Brauner <brauner@kernel.org>
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Get rid of those unnecessary return statements.
Signed-off-by: Davidlohr Bueso <dave@stgolabs.net>
Link: https://lore.kernel.org/20250515173925.147823-4-dave@stgolabs.net
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Christian Brauner <brauner@kernel.org>
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__getblk_slow() already implies failing a first lookup
as the fastpath, so try to create the buffers immediately
and avoid the redundant lookup. This saves 5-10% of the
total cost/latency of the slowpath.
Signed-off-by: Davidlohr Bueso <dave@stgolabs.net>
Link: https://lore.kernel.org/20250515173925.147823-3-dave@stgolabs.net
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Christian Brauner <brauner@kernel.org>
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Just as with the fast path, call the lookup variant depending
on the gfp flags.
Signed-off-by: Davidlohr Bueso <dave@stgolabs.net>
Link: https://lore.kernel.org/20250515173925.147823-2-dave@stgolabs.net
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Christian Brauner <brauner@kernel.org>
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As part of the ongoing efforts to sub-divide memory management
maintainership and reviewership, establish a section for memory policy and
migration and add appropriate maintainers and reviewers.
[lorenzo.stoakes@oracle.com: add Ying as reviewer]
Link: https://lkml.kernel.org/r/ed6f0fc2-5608-4eea-b1be-07e3e19be263@lucifer.local
Link: https://lkml.kernel.org/r/20250515191358.205684-1-lorenzo.stoakes@oracle.com
Signed-off-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Reviewed-by: Rakie Kim <rakie.kim@sk.com>
Acked-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Joshua Hahn <joshua.hahnjy@gmail.com>
Acked-by: David Hildenbrand <david@redhat.com>
Acked-by: Zi Yan <ziy@nvidia.com>
Acked-by: Huang Ying <ying.huang@linux.alibaba.com>
Acked-by: Byungchul Park <byungchul@sk.com>
Cc: Alistair Popple <apopple@nvidia.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Gregory Price <gourry@gourry.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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As part of the ongoing efforts to sub-divide memory management
maintainership and reviewership, establish a section for Kernel Samepage
Merging (KSM) and add appropriate maintainers and reviewers.
Link: https://lkml.kernel.org/r/20250515190404.203596-1-lorenzo.stoakes@oracle.com
Signed-off-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Acked-by: David Hildenbrand <david@redhat.com>
Acked-by: Chengming Zhou <chengming.zhou@linux.dev>
Acked-by: Xu Xin <xu.xin16@zte.com.cn>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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apply_to_pte_range() enters the lazy MMU mode and then invokes
kasan_populate_vmalloc_pte() callback on each page table walk iteration.
However, the callback can go into sleep when trying to allocate a single
page, e.g. if an architecutre disables preemption on lazy MMU mode enter.
On s390 if make arch_enter_lazy_mmu_mode() -> preempt_enable() and
arch_leave_lazy_mmu_mode() -> preempt_disable(), such crash occurs:
[ 0.663336] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:321
[ 0.663348] in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 2, name: kthreadd
[ 0.663358] preempt_count: 1, expected: 0
[ 0.663366] RCU nest depth: 0, expected: 0
[ 0.663375] no locks held by kthreadd/2.
[ 0.663383] Preemption disabled at:
[ 0.663386] [<0002f3284cbb4eda>] apply_to_pte_range+0xfa/0x4a0
[ 0.663405] CPU: 0 UID: 0 PID: 2 Comm: kthreadd Not tainted 6.15.0-rc5-gcc-kasan-00043-gd76bb1ebb558-dirty #162 PREEMPT
[ 0.663408] Hardware name: IBM 3931 A01 701 (KVM/Linux)
[ 0.663409] Call Trace:
[ 0.663410] [<0002f3284c385f58>] dump_stack_lvl+0xe8/0x140
[ 0.663413] [<0002f3284c507b9e>] __might_resched+0x66e/0x700
[ 0.663415] [<0002f3284cc4f6c0>] __alloc_frozen_pages_noprof+0x370/0x4b0
[ 0.663419] [<0002f3284ccc73c0>] alloc_pages_mpol+0x1a0/0x4a0
[ 0.663421] [<0002f3284ccc8518>] alloc_frozen_pages_noprof+0x88/0xc0
[ 0.663424] [<0002f3284ccc8572>] alloc_pages_noprof+0x22/0x120
[ 0.663427] [<0002f3284cc341ac>] get_free_pages_noprof+0x2c/0xc0
[ 0.663429] [<0002f3284cceba70>] kasan_populate_vmalloc_pte+0x50/0x120
[ 0.663433] [<0002f3284cbb4ef8>] apply_to_pte_range+0x118/0x4a0
[ 0.663435] [<0002f3284cbc7c14>] apply_to_pmd_range+0x194/0x3e0
[ 0.663437] [<0002f3284cbc99be>] __apply_to_page_range+0x2fe/0x7a0
[ 0.663440] [<0002f3284cbc9e88>] apply_to_page_range+0x28/0x40
[ 0.663442] [<0002f3284ccebf12>] kasan_populate_vmalloc+0x82/0xa0
[ 0.663445] [<0002f3284cc1578c>] alloc_vmap_area+0x34c/0xc10
[ 0.663448] [<0002f3284cc1c2a6>] __get_vm_area_node+0x186/0x2a0
[ 0.663451] [<0002f3284cc1e696>] __vmalloc_node_range_noprof+0x116/0x310
[ 0.663454] [<0002f3284cc1d950>] __vmalloc_node_noprof+0xd0/0x110
[ 0.663457] [<0002f3284c454b88>] alloc_thread_stack_node+0xf8/0x330
[ 0.663460] [<0002f3284c458d56>] dup_task_struct+0x66/0x4d0
[ 0.663463] [<0002f3284c45be90>] copy_process+0x280/0x4b90
[ 0.663465] [<0002f3284c460940>] kernel_clone+0xd0/0x4b0
[ 0.663467] [<0002f3284c46115e>] kernel_thread+0xbe/0xe0
[ 0.663469] [<0002f3284c4e440e>] kthreadd+0x50e/0x7f0
[ 0.663472] [<0002f3284c38c04a>] __ret_from_fork+0x8a/0xf0
[ 0.663475] [<0002f3284ed57ff2>] ret_from_fork+0xa/0x38
Instead of allocating single pages per-PTE, bulk-allocate the shadow
memory prior to applying kasan_populate_vmalloc_pte() callback on a page
range.
Link: https://lkml.kernel.org/r/c61d3560297c93ed044f0b1af085610353a06a58.1747316918.git.agordeev@linux.ibm.com
Fixes: 3c5c3cfb9ef4 ("kasan: support backing vmalloc space with real shadow memory")
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Suggested-by: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Reviewed-by: Harry Yoo <harry.yoo@oracle.com>
Cc: Daniel Axtens <dja@axtens.net>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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In commit c749d9b7ebbc ("iov_iter: fix copy_page_from_iter_atomic() if
KMAP_LOCAL_FORCE_MAP"), Hugh correctly noted that if KMAP_LOCAL_FORCE_MAP
is enabled, we must limit ourselves to PAGE_SIZE bytes per call to
kmap_local(). The same problem exists in memcpy_from_folio(),
memcpy_to_folio(), folio_zero_tail(), folio_fill_tail() and
memcpy_from_file_folio(), so add folio_test_partial_kmap() to do this more
succinctly.
Link: https://lkml.kernel.org/r/20250514170607.3000994-2-willy@infradead.org
Fixes: 00cdf76012ab ("mm: add memcpy_from_file_folio()")
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Hugh Dickins <hughd@google.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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The hung-task detector is missing in MAINTAINERS. While it's been quiet
recently, I'm actively working on it and volunteering to review patches.
Adding this section will make it easier for contributors to know who to
contact.
Link: https://lkml.kernel.org/r/20250513052234.46463-1-lance.yang@linux.dev
Signed-off-by: Lance Yang <lance.yang@linux.dev>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Problem
========
commit 658eb5ab916d ("delayacct: add delay max to record delay peak")
- adding more fields
commit f65c64f311ee ("delayacct: add delay min to record delay peak")
- adding more fields
commit b016d0873777 ("taskstats: modify taskstats version")
- version bump to 15
Since version 15 (TASKSTATS_VERSION=15) the new layout of the structure
adds fields in the middle of the structure, rendering all old software
incompatible with newer kernels and software compiled against the new
kernel headers incompatible with older kernels.
Solution
=========
move delay max and delay min to the end of taskstat, and bump
the version to 16 after the change
[wang.yaxin@zte.com.cn: adjust indentation]
Link: https://lkml.kernel.org/r/202505192131489882NSciXV4EGd8zzjLuwoOK@zte.com.cn
Link: https://lkml.kernel.org/r/20250510155413259V4JNRXxukdDgzsaL0Fo6a@zte.com.cn
Fixes: f65c64f311ee ("delayacct: add delay min to record delay peak")
Signed-off-by: Wang Yaxin <wang.yaxin@zte.com.cn>
Signed-off-by: xu xin <xu.xin16@zte.com.cn>
Signed-off-by: Kun Jiang <jiang.kun2@zte.com.cn>
Reviewed-by: Yang Yang <yang.yang29@zte.com.cn>
Cc: Balbir Singh <bsingharora@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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When performing a right split on a folio, the split_at2 may point to a
not-present page if the offset + length equals the original folio size,
which will trigger the following error:
BUG: unable to handle page fault for address: ffffea0006000008
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 143ffb9067 P4D 143ffb9067 PUD 143ffb8067 PMD 0
Oops: Oops: 0000 [#1] SMP PTI
CPU: 0 UID: 0 PID: 502640 Comm: fsx Not tainted 6.15.0-rc3-gc6156189fc6b #889 PR
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-2.fc40 04/01/4
RIP: 0010:truncate_inode_partial_folio+0x208/0x620
Code: ff 03 48 01 da e8 78 7e 13 00 48 83 05 10 b5 5a 0c 01 85 c0 0f 85 1c 02 001
RSP: 0018:ffffc90005bafab0 EFLAGS: 00010286
RAX: 0000000000000000 RBX: ffffea0005ffff00 RCX: 0000000000000002
RDX: 000000000000000c RSI: 0000000000013975 RDI: ffffc90005bafa30
RBP: ffffea0006000000 R08: 0000000000000000 R09: 00000000000009bf
R10: 00000000000007e0 R11: 0000000000000000 R12: 0000000000001633
R13: 0000000000000000 R14: ffffea0005ffff00 R15: fffffffffffffffe
FS: 00007f9f9a161740(0000) GS:ffff8894971fd000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffea0006000008 CR3: 000000017c2ae000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
truncate_inode_pages_range+0x226/0x720
truncate_pagecache+0x57/0x90
...
Fix this issue by skipping the split if truncation aligns with the folio
size, make sure the split page number lies within the folio.
Link: https://lkml.kernel.org/r/20250512062825.3533342-1-yi.zhang@huaweicloud.com
Fixes: 7460b470a131 ("mm/truncate: use folio_split() in truncate operation")
Signed-off-by: Zhang Yi <yi.zhang@huawei.com>
Reviewed-by: Zi Yan <ziy@nvidia.com>
Cc: ErKun Yang <yangerkun@huawei.com>
Cc: Kefeng Wang <wangkefeng.wang@huawei.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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In furtherance of ongoing efforts to ensure people are aware of who
de-facto maintains/has an interest in specific parts of mm, as well trying
to avoid get_maintainers.pl listing only Andrew and the mailing list for
mm files - establish a reclaim memory management section and add relevant
maintainers/reviewers.
This is a key part of memory management so sensibly deserves its own
section.
This encompasses both 'classical' reclaim and MGLRU and thus reflects this
in the reviewers from both, as well as those who have contributed
specifically on the memcg side of things.
Link: https://lkml.kernel.org/r/20250512143122.87740-1-lorenzo.stoakes@oracle.com
Signed-off-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Acked-by: Qi Zheng <zhengqi.arch@bytedance.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Acked-by: Shakeel Butt <shakeel.butt@linux.dev>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: David Hildenbrand <david@redhat.com>
Cc: Yu Zhao <yuzhao@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Make Vlastimil maintainer of this section (with thanks to Vlastimil for
agreeing to this!) and add page isolation files for which this section
seem most appropriate.
We may wish to, in future, refactor/rename some of these files to more
logically fit what is actually being performed, but for the time being
this seems the most sensible place.
Additionally, fix the alphabetical ordering of files.
Link: https://lkml.kernel.org/r/20250512144603.90379-1-lorenzo.stoakes@oracle.com
Signed-off-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Zi Yan <ziy@nvidia.com>
Cc: Brendan Jackman <jackmanb@google.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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On configs with CONFIG_ARM64_GCS=y, VM_SHADOW_STACK is bit 38. On configs
with CONFIG_HAVE_ARCH_USERFAULTFD_MINOR=y (selected by CONFIG_ARM64 when
CONFIG_USERFAULTFD=y), VM_UFFD_MINOR is _also_ bit 38.
This bit being shared by two different VMA flags could lead to all sorts
of unintended behaviors. Presumably, a process could maybe call into
userfaultfd in a way that disables the shadow stack vma flag. I can't
think of any attack where this would help (presumably, if an attacker
tries to disable shadow stacks, they are trying to hijack control flow so
can't arbitrarily call into userfaultfd yet anyway) but this still feels
somewhat scary.
Link: https://lkml.kernel.org/r/20250507131000.1204175-2-revest@chromium.org
Fixes: ae80e1629aea ("mm: Define VM_SHADOW_STACK for arm64 when we support GCS")
Signed-off-by: Florent Revest <revest@chromium.org>
Reviewed-by: Mark Brown <broonie@kernel.org>
Cc: Borislav Betkov <bp@alien8.de>
Cc: Brendan Jackman <jackmanb@google.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Florent Revest <revest@chromium.org>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Thiago Jung Bauermann <thiago.bauermann@linaro.org>
Cc: Thomas Gleinxer <tglx@linutronix.de>
Cc: Will Deacon <will@kernel.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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commit c4608d1bf7c6 ("mm: mmap: map MAP_STACK to VM_NOHUGEPAGE") maps the
mmap option MAP_STACK to VM_NOHUGEPAGE. This is also done if
CONFIG_TRANSPARENT_HUGEPAGE is not defined. But in that case, the
VM_NOHUGEPAGE does not make sense.
I discovered this issue when trying to use the tool CRIU to checkpoint and
restore a container. Our running kernel is compiled without
CONFIG_TRANSPARENT_HUGEPAGE. CRIU parses the output of /proc/<pid>/smaps
and saves the "nh" flag. When trying to restore the container, CRIU fails
to restore the "nh" mappings, since madvise() MADV_NOHUGEPAGE always
returns an error because CONFIG_TRANSPARENT_HUGEPAGE is not defined.
Link: https://lkml.kernel.org/r/20250507-map-map_stack-to-vm_nohugepage-only-if-thp-is-enabled-v5-1-c6c38cfefd6e@kuka.com
Fixes: c4608d1bf7c6 ("mm: mmap: map MAP_STACK to VM_NOHUGEPAGE")
Signed-off-by: Ignacio Moreno Gonzalez <Ignacio.MorenoGonzalez@kuka.com>
Acked-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Reviewed-by: Yang Shi <yang@os.amperecomputing.com>
Reviewed-by: Liam R. Howlett <Liam.Howlett@oracle.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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I have been working on the vmalloc code for several years, contributing to
improvements and fixes. Add myself as co-maintainer ("M") alongside
Andrew Morton.
Link: https://lkml.kernel.org/r/20250507150257.61485-1-urezki@gmail.com
Signed-off-by: Uladzislau Rezki (Sony) <urezki@gmail.com>
Acked-by: David Hildenbrand <david@redhat.com>
Acked-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Acked-by: Baoquan He <bhe@redhat.com>
Cc: Christop Hellwig <hch@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
|
|
__alloc_pages_slowpath has no change detection for ac->nodemask in the
part of retry path, while cpuset can modify it in parallel. For some
processes that set mempolicy as MPOL_BIND, this results ac->nodemask
changes, and then the should_reclaim_retry will judge based on the latest
nodemask and jump to retry, while the get_page_from_freelist only
traverses the zonelist from ac->preferred_zoneref, which selected by a
expired nodemask and may cause infinite retries in some cases
cpu 64:
__alloc_pages_slowpath {
/* ..... */
retry:
/* ac->nodemask = 0x1, ac->preferred->zone->nid = 1 */
if (alloc_flags & ALLOC_KSWAPD)
wake_all_kswapds(order, gfp_mask, ac);
/* cpu 1:
cpuset_write_resmask
update_nodemask
update_nodemasks_hier
update_tasks_nodemask
mpol_rebind_task
mpol_rebind_policy
mpol_rebind_nodemask
// mempolicy->nodes has been modified,
// which ac->nodemask point to
*/
/* ac->nodemask = 0x3, ac->preferred->zone->nid = 1 */
if (should_reclaim_retry(gfp_mask, order, ac, alloc_flags,
did_some_progress > 0, &no_progress_loops))
goto retry;
}
Simultaneously starting multiple cpuset01 from LTP can quickly reproduce
this issue on a multi node server when the maximum memory pressure is
reached and the swap is enabled
Link: https://lkml.kernel.org/r/20250416082405.20988-1-zhangtianyang@loongson.cn
Fixes: c33d6c06f60f ("mm, page_alloc: avoid looking up the first zone in a zonelist twice")
Signed-off-by: Tianyang Zhang <zhangtianyang@loongson.cn>
Reviewed-by: Suren Baghdasaryan <surenb@google.com>
Reviewed-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Brendan Jackman <jackmanb@google.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Zi Yan <ziy@nvidia.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/remoteproc/linux
Pull remoteproc fix from Bjorn Andersson:
"Address a regression preventing the wireless subsystem remoteproc on
some Qualcomm platforms (e.g. SDM632) from working"
* tag 'rproc-v6.15-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/remoteproc/linux:
remoteproc: qcom_wcnss: Fix on platforms without fallback regulators
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git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto fixes from Herbert Xu:
"This fixes a regression in padata as well as an ancient double-free
bug in af_alg"
* tag 'v6.15-p7' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
crypto: algif_hash - fix double free in hash_accept
padata: do not leak refcount in reorder_work
|
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SGMII_CTRL register, which specifies the active interface, was not
properly restored when resuming from suspend. This led to incorrect
interface selection after resume particularly in scenarios involving
the FPGA.
To fix this:
- Move the SGMII_CTRL setup out of the probe function.
- Initialize the register in the hardware initialization helper function,
which is called during both device initialization and resume.
This ensures the interface configuration is consistently restored after
suspend/resume cycles.
Fixes: a46d9d37c4f4f ("net: lan743x: Add support for SGMII interface")
Signed-off-by: Thangaraj Samynathan <thangaraj.s@microchip.com>
Link: https://patch.msgid.link/20250516035719.117960-1-thangaraj.s@microchip.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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|
netdev_lock is already held when calling bnxt_ulp_irq_stop() and
bnxt_ulp_irq_restart(). When converting rtnl_lock to netdev_lock,
the original code was rtnl_dereference() to indicate that rtnl_lock
was already held. rcu_dereference_protected() is the correct
conversion after replacing rtnl_lock with netdev_lock.
Add a new helper netdev_lock_dereference() similar to
rtnl_dereference().
Fixes: 004b5008016a ("eth: bnxt: remove most dependencies on RTNL")
Reviewed-by: Andy Gospodarek <andrew.gospodarek@broadcom.com>
Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250519204130.3097027-2-michael.chan@broadcom.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Maintenance of the ravb driver will be handled by Niklas for now. I
still intend to review patches, and will be using my own email address
going forward.
Signed-off-by: Paul Barker <paul.barker.ct@bp.renesas.com>
Acked-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Link: https://patch.msgid.link/20250519133354.6564-1-paul.barker.ct@bp.renesas.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
|
While the MDIO address of the internal PHY on Allwinner sun8i chips is
generally 1, of_mdio_parse_addr is used to cleanly parse the address
from the device-tree instead of hardcoding it.
A commit reworking the code ditched the parsed value and hardcoded the
value 1 instead, which didn't really break anything but is more fragile
and not future-proof.
Restore the initial behavior using the parsed address returned from the
helper.
Fixes: 634db83b8265 ("net: stmmac: dwmac-sun8i: Handle integrated/external MDIOs")
Signed-off-by: Paul Kocialkowski <paulk@sys-base.io>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Acked-by: Corentin LABBE <clabbe.montjoie@gmail.com>
Tested-by: Corentin LABBE <clabbe.montjoie@gmail.com>
Link: https://patch.msgid.link/20250519164936.4172658-1-paulk@sys-base.io
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net-queue
Tony Nguyen says:
====================
Intel Wired LAN Driver Updates 2025-05-19 (ice, idpf)
For ice:
Jake removes incorrect incrementing of MAC filter count.
Dave adds check for, prerequisite, switchdev mode before setting up LAG.
For idpf:
Pavan stores max_tx_hdr_size to prevent NULL pointer dereference during
reset.
* '100GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net-queue:
idpf: fix null-ptr-deref in idpf_features_check
ice: Fix LACP bonds without SRIOV environment
ice: fix vf->num_mac count with port representors
====================
Link: https://patch.msgid.link/20250519210523.1866503-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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|
Using random mac address is not an error since the driver continues to
function, it should be informative that the system has not assigned
a MAC address. This is inline with other drivers such as ax88796c,
dm9051 etc. Drop the error level to info level.
Signed-off-by: Nishanth Menon <nm@ti.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Reviewed-by: Roger Quadros <rogerq@kernel.org>
Link: https://patch.msgid.link/20250516122655.442808-1-nm@ti.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Error-handling paths in msm_pinctrl_probe() don't call
a function required to unroll restart handler registration,
unregister_restart_handler(). Instead of adding calls to this function,
switch the msm pinctrl code into using devm_register_sys_off_handler().
Fixes: cf1fc1876289 ("pinctrl: qcom: use restart_notifier mechanism for ps_hold")
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Link: https://lore.kernel.org/20250513-pinctrl-msm-fix-v2-2-249999af0fc1@oss.qualcomm.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
|
|
On Qualcomm platforms if the board uses GPIO hogs msm_pinmux_request()
calls gpiochip_line_is_valid(). After commit 8015443e24e7 ("gpio: Hide
valid_mask from direct assignments") gpiochip_line_is_valid() uses
gc->gpiodev, which is NULL when GPIO hog pins are being processed.
Thus after this commit using GPIO hogs causes the following crash. In
order to fix this, verify that gc->gpiodev is not NULL.
Note: it is not possible to reorder calls (e.g. by calling
msm_gpio_init() before pinctrl registration or by splitting
pinctrl_register() into _and_init() and pinctrl_enable() and calling the
latter function after msm_gpio_init()) because GPIO chip registration
would fail with EPROBE_DEFER if pinctrl is not enabled at the time of
registration.
pc : gpiochip_line_is_valid+0x4/0x28
lr : msm_pinmux_request+0x24/0x40
sp : ffff8000808eb870
x29: ffff8000808eb870 x28: 0000000000000000 x27: 0000000000000000
x26: 0000000000000000 x25: ffff726240f9d040 x24: 0000000000000000
x23: ffff7262438c0510 x22: 0000000000000080 x21: ffff726243ea7000
x20: ffffab13f2c4e698 x19: 0000000000000080 x18: 00000000ffffffff
x17: ffff726242ba6000 x16: 0000000000000100 x15: 0000000000000028
x14: 0000000000000000 x13: 0000000000002948 x12: 0000000000000003
x11: 0000000000000078 x10: 0000000000002948 x9 : ffffab13f50eb5e8
x8 : 0000000003ecb21b x7 : 000000000000002d x6 : 0000000000000b68
x5 : 0000007fffffffff x4 : ffffab13f52f84a8 x3 : ffff8000808eb804
x2 : ffffab13f1de8190 x1 : 0000000000000080 x0 : 0000000000000000
Call trace:
gpiochip_line_is_valid+0x4/0x28 (P)
pin_request+0x208/0x2c0
pinmux_enable_setting+0xa0/0x2e0
pinctrl_commit_state+0x150/0x26c
pinctrl_enable+0x6c/0x2a4
pinctrl_register+0x3c/0xb0
devm_pinctrl_register+0x58/0xa0
msm_pinctrl_probe+0x2a8/0x584
sdm845_pinctrl_probe+0x20/0x88
platform_probe+0x68/0xc0
really_probe+0xbc/0x298
__driver_probe_device+0x78/0x12c
driver_probe_device+0x3c/0x160
__device_attach_driver+0xb8/0x138
bus_for_each_drv+0x84/0xe0
__device_attach+0x9c/0x188
device_initial_probe+0x14/0x20
bus_probe_device+0xac/0xb0
deferred_probe_work_func+0x8c/0xc8
process_one_work+0x208/0x5e8
worker_thread+0x1b4/0x35c
kthread+0x144/0x220
ret_from_fork+0x10/0x20
Code: b5fffba0 17fffff2 9432ec27 f9400400 (f9428800)
Fixes: 8015443e24e7 ("gpio: Hide valid_mask from direct assignments")
Reported-by: Doug Anderson <dianders@chromium.org>
Closes: https://lore.kernel.org/r/CAD=FV=Vg8_ZOLgLoC4WhFPzhVsxXFC19NrF38W6cW_W_3nFjbw@mail.gmail.com
Tested-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Reviewed-by: Matti Vaittinen <mazziesaccount@gmail.com>
Acked-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Link: https://lore.kernel.org/20250513-pinctrl-msm-fix-v2-1-249999af0fc1@oss.qualcomm.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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|
io_uring_cmd_import_fixed_vec() is declared in both
include/linux/io_uring/cmd.h and io_uring/uring_cmd.h. The declarations
are identical (if redundant) for CONFIG_IO_URING=y. But if
CONFIG_IO_URING=N, include/linux/io_uring/cmd.h declares the function as
static inline while io_uring/uring_cmd.h declares it as extern. This
causes linker errors if the declaration in io_uring/uring_cmd.h is used.
Remove the declaration in io_uring/uring_cmd.h to avoid linker errors
and prevent the declarations getting out of sync.
Signed-off-by: Caleb Sander Mateos <csander@purestorage.com>
Fixes: ef4902752972 ("io_uring/cmd: introduce io_uring_cmd_import_fixed_vec")
Link: https://lore.kernel.org/r/20250520193337.1374509-1-csander@purestorage.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
|
|
Axel Forsman <axfo@kvaser.com> says:
This patch series fixes a couple of race conditions in the
kvaser_pciefd driver surfaced by enabling MSI interrupts and the new
Kvaser PCIe 8xCAN.
Changes since version 2:
* Rebase onto linux-can/main to resolve del_timer()/timer_delete()
merge conflict.
* Reword 2nd commit message slightly.
Changes since version 1:
* Change type of srb_cmd_reg from "__le32 __iomem *" to
"void __iomem *".
* Maintain TX FIFO count in driver instead of querying HW.
* Stop queue at end of .start_xmit() if full.
Link: https://patch.msgid.link/20250520114332.8961-1-axfo@kvaser.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
|
|
Going bus-off on a channel doing RX could result in dropped packets.
As netif_running() gets cleared before the channel abort procedure,
the handling of any last RDATA packets would see netif_rx() return
non-zero to signal a dropped packet. kvaser_pciefd_read_buffer() dealt
with this "error" by breaking out of processing the remaining DMA RX
buffer.
Only return an error from kvaser_pciefd_read_buffer() due to packet
corruption, otherwise handle it internally.
Cc: stable@vger.kernel.org
Signed-off-by: Axel Forsman <axfo@kvaser.com>
Tested-by: Jimmy Assarsson <extja@kvaser.com>
Reviewed-by: Jimmy Assarsson <extja@kvaser.com>
Link: https://patch.msgid.link/20250520114332.8961-4-axfo@kvaser.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
|
|
The functions kvaser_pciefd_start_xmit() and
kvaser_pciefd_handle_ack_packet() raced to stop/wake TX queues and
get/put echo skbs, as kvaser_pciefd_can->echo_lock was only ever taken
when transmitting and KCAN_TX_NR_PACKETS_CURRENT gets decremented
prior to handling of ACKs. E.g., this caused the following error:
can_put_echo_skb: BUG! echo_skb 5 is occupied!
Instead, use the synchronization helpers in netdev_queues.h. As those
piggyback on BQL barriers, start updating in-flight packets and bytes
counts as well.
Cc: stable@vger.kernel.org
Signed-off-by: Axel Forsman <axfo@kvaser.com>
Tested-by: Jimmy Assarsson <extja@kvaser.com>
Reviewed-by: Jimmy Assarsson <extja@kvaser.com>
Link: https://patch.msgid.link/20250520114332.8961-3-axfo@kvaser.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
|
|
Avoid the driver missing IRQs by temporarily masking IRQs in the ISR
to enforce an edge even if a different IRQ is signalled before handled
IRQs are cleared.
Fixes: 48f827d4f48f ("can: kvaser_pciefd: Move reset of DMA RX buffers to the end of the ISR")
Cc: stable@vger.kernel.org
Signed-off-by: Axel Forsman <axfo@kvaser.com>
Tested-by: Jimmy Assarsson <extja@kvaser.com>
Reviewed-by: Jimmy Assarsson <extja@kvaser.com>
Link: https://patch.msgid.link/20250520114332.8961-2-axfo@kvaser.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/hubcap/linux
Pull orangefs fix from Mike Marshall:
"Fix for orangefs page writeout counting"
* tag 'for-linus-6.15-ofs2' of git://git.kernel.org/pub/scm/linux/kernel/git/hubcap/linux:
orangefs: adjust counting code to recover from 665575cf
|
|
Block devices can be opened read-write even if they can't be written to
for historic reasons. Remove the check requiring file->f_op->write_iter
when the block devices was opened in loop_configure. The call to
loop_check_backing_file just below ensures the ->write_iter is present
for backing files opened for writing, which is the only check that is
actually needed.
Fixes: f5c84eff634b ("loop: Add sanity check for read/write_iter")
Reported-by: Christian Hesse <mail@eworm.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20250520135420.1177312-1-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
|
|
A late commit to 6.14-rc7! broke orangefs. 665575cf seems like a
good change, but maybe should have been introduced during the merge
window. This patch adjusts the counting code associated with
writing out pages so that orangefs works in a 665575cf world.
Signed-off-by: Mike Marshall <hubcap@omnibond.com>
|
|
New HP ZBook with Realtek HDA codec ALC3247 needs the quirk
ALC236_FIXUP_HP_GPIO_LED to fix the micmute LED.
Signed-off-by: Chris Chiu <chris.chiu@canonical.com>
Cc: <stable@vger.kernel.org>
Link: https://patch.msgid.link/20250520132101.120685-1-chris.chiu@canonical.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
|
|
Add support for HP Agusta.
Laptops use 2 CS35L41 Amps with HDA, using Internal boost, with I2C
Signed-off-by: Stefan Binding <sbinding@opensource.cirrus.com>
Cc: <stable@vger.kernel.org>
Link: https://patch.msgid.link/20250520124757.12597-1-sbinding@opensource.cirrus.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can
Marc Kleine-Budde says:
====================
pull-request: can 2025-05-20
this is a pull request of 3 patches for net/main.
The 1st patch is by Rob Herring, and fixes the $id path in the
microchip,mcp2510.yaml device tree bindinds documentation.
The last 2 patches are from Oliver Hartkopp and fix a use-after-free
read and an out-of-bounds read in the CAN Broadcast Manager (BCM)
protocol.
linux-can-fixes-for-6.15-20250520
* tag 'linux-can-fixes-for-6.15-20250520' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can:
can: bcm: add missing rcu read protection for procfs content
can: bcm: add locking for bcm_op runtime updates
dt-bindings: can: microchip,mcp2510: Fix $id path
====================
Link: https://patch.msgid.link/20250520091424.142121-1-mkl@pengutronix.de
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
|
|
A few, quite rare, WMI attributes have names that are not compatible with
filenames, e.g. "Intel VT for Directed I/O (VT-d)".
For these cases the '/' gets replaced with '\' for display, but doesn't
get switched again when doing the WMI access.
Fix this by keeping the original attribute name and using that for sending
commands to the BIOS
Fixes: a40cd7ef22fb ("platform/x86: think-lmi: Add WMI interface support on Lenovo platforms")
Signed-off-by: Mark Pearson <mpearson-lenovo@squebb.ca>
Link: https://lore.kernel.org/r/20250520005027.3840705-1-mpearson-lenovo@squebb.ca
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
|
|
If user modifies the battery charge threshold an ACPI event is generated.
Confirmed with Lenovo FW team this is only generated on user event. As no
action is needed, ignore the event and prevent spurious kernel logs.
Reported-by: Derek Barbosa <debarbos@redhat.com>
Closes: https://lore.kernel.org/platform-driver-x86/7e9a1c47-5d9c-4978-af20-3949d53fb5dc@app.fastmail.com/T/#m5f5b9ae31d3fbf30d7d9a9d76c15fb3502dfd903
Signed-off-by: Mark Pearson <mpearson-lenovo@squebb.ca>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Armin Wolf <W_Armin@gmx.de>
Link: https://lore.kernel.org/r/20250517023348.2962591-1-mpearson-lenovo@squebb.ca
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
|
|
Lenovo Yoga Pro 7 (gen 10) with Realtek ALC3306 and combined CS35L56
amplifiers need quirk ALC287_FIXUP_YOGA9_14IAP7_BASS_SPK_PIN to
enable bass
Signed-off-by: Ed Burcher <git@edburcher.com>
Cc: <stable@vger.kernel.org>
Link: https://patch.msgid.link/20250519224907.31265-2-git@edburcher.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
|
|
If there is no stream data in file, v_len is zero.
So, If position(*pos) is zero, stream write will fail
due to stream write position validation check.
This patch reorganize stream write position validation.
Fixes: 0ca6df4f40cf ("ksmbd: prevent out-of-bounds stream writes by validating *pos")
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
|
|
Multiple pointers in struct cifs_search_info (ntwrk_buf_start,
srch_entries_start, and last_entry) point to the same allocated buffer.
However, when freeing this buffer, only ntwrk_buf_start was set to NULL,
while the other pointers remained pointing to freed memory.
This is defensive programming to prevent potential issues with stale
pointers. While the active UAF vulnerability is fixed by the previous
patch, this change ensures consistent pointer state and more robust error
handling.
Signed-off-by: Wang Zhaolong <wangzhaolong1@huawei.com>
Cc: stable@vger.kernel.org
Reviewed-by: Paulo Alcantara (Red Hat) <pc@manguebit.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
|
|
The tj_max value obtained from the Intel TCC library are in Celsius,
whereas the thermal subsystem operates in milli-Celsius.
This discrepancy leads to incorrect trip temperature calculations.
Fix bogus trip temperature by converting tj_max to milli-Celsius Unit.
Fixes: 8ef0ca4a177d ("Merge back other thermal control material for 6.3.")
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Reported-by: zhang ning <zhangn1985@outlook.com>
Closes: https://lore.kernel.org/all/TY2PR01MB3786EF0FE24353026293F5ACCD97A@TY2PR01MB3786.jpnprd01.prod.outlook.com/
Tested-by: zhang ning <zhangn1985@outlook.com>
Cc: 6.3+ <stable@vger.kernel.org> # 6.3+
Link: https://patch.msgid.link/20250519070901.1031233-1-rui.zhang@intel.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
|
