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159,935 commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Yafang Shao
|
4cc0473d77 |
get rid of __get_task_comm()
Patch series "Improve the copy of task comm", v8.
Using {memcpy,strncpy,strcpy,kstrdup} to copy the task comm relies on the
length of task comm. Changes in the task comm could result in a
destination string that is overflow. Therefore, we should explicitly
ensure the destination string is always NUL-terminated, regardless of the
task comm. This approach will facilitate future extensions to the task
comm.
As suggested by Linus [0], we can identify all relevant code with the
following git grep command:
git grep 'memcpy.*->comm\>'
git grep 'kstrdup.*->comm\>'
git grep 'strncpy.*->comm\>'
git grep 'strcpy.*->comm\>'
PATCH #2~#4: memcpy
PATCH #5~#6: kstrdup
PATCH #7: strcpy
Please note that strncpy() is not included in this series as it is being
tracked by another effort. [1]
This patch (of 7):
We want to eliminate the use of __get_task_comm() for the following
reasons:
- The task_lock() is unnecessary
Quoted from Linus [0]:
: Since user space can randomly change their names anyway, using locking
: was always wrong for readers (for writers it probably does make sense
: to have some lock - although practically speaking nobody cares there
: either, but at least for a writer some kind of race could have
: long-term mixed results
Link: https://lkml.kernel.org/r/20241007144911.27693-1-laoar.shao@gmail.com
Link: https://lkml.kernel.org/r/20241007144911.27693-2-laoar.shao@gmail.com
Link: https://lore.kernel.org/all/CAHk-=wivfrF0_zvf+oj6==Sh=-npJooP8chLPEfaFV0oNYTTBA@mail.gmail.com [0]
Link: https://lore.kernel.org/all/CAHk-=whWtUC-AjmGJveAETKOMeMFSTwKwu99v7+b6AyHMmaDFA@mail.gmail.com/
Link: https://lore.kernel.org/all/CAHk-=wjAmmHUg6vho1KjzQi2=psR30+CogFd4aXrThr2gsiS4g@mail.gmail.com/ [0]
Link: https://github.com/KSPP/linux/issues/90 [1]
Signed-off-by: Yafang Shao <laoar.shao@gmail.com>
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Christian Brauner <brauner@kernel.org>
Cc: Jan Kara <jack@suse.cz>
Cc: Eric Biederman <ebiederm@xmission.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Alexei Starovoitov <alexei.starovoitov@gmail.com>
Cc: Matus Jokay <matus.jokay@stuba.sk>
Cc: Alejandro Colomar <alx@kernel.org>
Cc: "Serge E. Hallyn" <serge@hallyn.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Justin Stitt <justinstitt@google.com>
Cc: Steven Rostedt (Google) <rostedt@goodmis.org>
Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Cc: Andy Shevchenko <andy.shevchenko@gmail.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: David Airlie <airlied@gmail.com>
Cc: Eric Paris <eparis@redhat.com>
Cc: James Morris <jmorris@namei.org>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Maxime Ripard <mripard@kernel.org>
Cc: Ondrej Mosnacek <omosnace@redhat.com>
Cc: Paul Moore <paul@paul-moore.com>
Cc: Quentin Monnet <qmo@kernel.org>
Cc: Simon Horman <horms@kernel.org>
Cc: Stephen Smalley <stephen.smalley.work@gmail.com>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Linus Torvalds
|
a8cc743272 |
17 hotfixes. 9 are cc:stable. 13 are MM and 4 are non-MM.
The usual collection of singletons - please see the changelogs.
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Merge tag 'mm-hotfixes-stable-2024-11-03-10-50' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull misc fixes from Andrew Morton:
"17 hotfixes. 9 are cc:stable. 13 are MM and 4 are non-MM.
The usual collection of singletons - please see the changelogs"
* tag 'mm-hotfixes-stable-2024-11-03-10-50' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
mm: multi-gen LRU: use {ptep,pmdp}_clear_young_notify()
mm: multi-gen LRU: remove MM_LEAF_OLD and MM_NONLEAF_TOTAL stats
mm, mmap: limit THP alignment of anonymous mappings to PMD-aligned sizes
mm: shrinker: avoid memleak in alloc_shrinker_info
.mailmap: update e-mail address for Eugen Hristev
vmscan,migrate: fix page count imbalance on node stats when demoting pages
mailmap: update Jarkko's email addresses
mm: allow set/clear page_type again
nilfs2: fix potential deadlock with newly created symlinks
Squashfs: fix variable overflow in squashfs_readpage_block
kasan: remove vmalloc_percpu test
tools/mm: -Werror fixes in page-types/slabinfo
mm, swap: avoid over reclaim of full clusters
mm: fix PSWPIN counter for large folios swap-in
mm: avoid VM_BUG_ON when try to map an anon large folio to zero page.
mm/codetag: fix null pointer check logic for ref and tag
mm/gup: stop leaking pinned pages in low memory conditions
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Yu Zhao
|
1d4832becd |
mm: multi-gen LRU: use {ptep,pmdp}_clear_young_notify()
When the MM_WALK capability is enabled, memory that is mostly accessed by
a VM appears younger than it really is, therefore this memory will be less
likely to be evicted. Therefore, the presence of a running VM can
significantly increase swap-outs for non-VM memory, regressing the
performance for the rest of the system.
Fix this regression by always calling {ptep,pmdp}_clear_young_notify()
whenever we clear the young bits on PMDs/PTEs.
[jthoughton@google.com: fix link-time error]
Link: https://lkml.kernel.org/r/20241019012940.3656292-3-jthoughton@google.com
Fixes:
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Yu Zhao
|
ddd6d8e975 |
mm: multi-gen LRU: remove MM_LEAF_OLD and MM_NONLEAF_TOTAL stats
Patch series "mm: multi-gen LRU: Have secondary MMUs participate in
MM_WALK".
Today, the MM_WALK capability causes MGLRU to clear the young bit from
PMDs and PTEs during the page table walk before eviction, but MGLRU does
not call the clear_young() MMU notifier in this case. By not calling this
notifier, the MM walk takes less time/CPU, but it causes pages that are
accessed mostly through KVM / secondary MMUs to appear younger than they
should be.
We do call the clear_young() notifier today, but only when attempting to
evict the page, so we end up clearing young/accessed information less
frequently for secondary MMUs than for mm PTEs, and therefore they appear
younger and are less likely to be evicted. Therefore, memory that is
*not* being accessed mostly by KVM will be evicted *more* frequently,
worsening performance.
ChromeOS observed a tab-open latency regression when enabling MGLRU with a
setup that involved running a VM:
Tab-open latency histogram (ms)
Version p50 mean p95 p99 max
base 1315 1198 2347 3454 10319
mglru 2559 1311 7399 12060 43758
fix 1119 926 2470 4211 6947
This series replaces the final non-selftest patchs from this series[1],
which introduced a similar change (and a new MMU notifier) with KVM
optimizations. I'll send a separate series (to Sean and Paolo) for the
KVM optimizations.
This series also makes proactive reclaim with MGLRU possible for KVM
memory. I have verified that this functions correctly with the selftest
from [1], but given that that test is a KVM selftest, I'll send it with
the rest of the KVM optimizations later. Andrew, let me know if you'd
like to take the test now anyway.
[1]: https://lore.kernel.org/linux-mm/20240926013506.860253-18-jthoughton@google.com/
This patch (of 2):
The removed stats, MM_LEAF_OLD and MM_NONLEAF_TOTAL, are not very helpful
and become more complicated to properly compute when adding
test/clear_young() notifiers in MGLRU's mm walk.
Link: https://lkml.kernel.org/r/20241019012940.3656292-1-jthoughton@google.com
Link: https://lkml.kernel.org/r/20241019012940.3656292-2-jthoughton@google.com
Fixes:
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|
Linus Torvalds
|
295ba6501d |
Input updates for v6.12-rc5
- a fix for regression in input core introduced in 6.11 preventing re-registering input handlers - a fix for adp5588-keys driver tyring to disable interrupt 0 at suspend when devices is used without interrupt - a fix for edt-ft5x06 to stop leaking regmap structure when probing fails and to make sure it is not released too early on removal. -----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQST2eWILY88ieB2DOtAj56VGEWXnAUCZycQwgAKCRBAj56VGEWX nFgtAQDxuWplL+cwA5f3g+/Rq38faHBY5ebmsC9G/QnBZs4hTQD/dL04tU9NwvNq GYw4MYRNaDIeY8vyq21Y+dQe0uL0rAM= =xAeU -----END PGP SIGNATURE----- Merge tag 'input-for-v6.12-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input Pull input fixes from Dmitry Torokhov: - a fix for regression in input core introduced in 6.11 preventing re-registering input handlers - a fix for adp5588-keys driver tyring to disable interrupt 0 at suspend when devices is used without interrupt - a fix for edt-ft5x06 to stop leaking regmap structure when probing fails and to make sure it is not released too early on removal. * tag 'input-for-v6.12-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: fix regression when re-registering input handlers Input: adp5588-keys - do not try to disable interrupt 0 Input: edt-ft5x06 - fix regmap leak when probe fails |
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Linus Torvalds
|
b019b4a670 |
A single fix for posix CPU timers
When a thread is cloned, the posix CPU timers are not inherited. If the parent has a CPU timer armed the corresponding tick dependency in the tasks tick_dep_mask is set and copied to the new thread, which means the new thread and all decendants will prevent the system to go into full NOHZ operation. Clear the tick dependency mask in copy_process() to fix this. -----BEGIN PGP SIGNATURE----- iQJHBAABCgAxFiEEQp8+kY+LLUocC4bMphj1TA10mKEFAmcnT/oTHHRnbHhAbGlu dXRyb25peC5kZQAKCRCmGPVMDXSYoZw5D/0bqjjMYiE0ws8nuuXN1gL2T1wt6P2C 2zzEKnk6nsxnGbMfFs7XifDkqSOHNVro7F6kCkz6cH4U/VSK6R2nNONbufz4mNWk 6uDvdlZps30ekmxN+C3fB6S/4MNVOhXFFXjsQhT/PxX/CfibVP5fATLtcRLq9Lfx mV3nnxKTHPjDGz2/2QRyYpA3G1fzOj/l2QeJsVAIC8GxCo7drLVe0yn5Yt+13zhU JMjgt9ox4PKFsjaXrqvt1yKNTtb+evjYSIVXxIg60oxUkfva6XFLXJv3rjbARUNj aqBHfkZ1/d2Hwc0WexDZfvhNWeCqnfUA+db7ALSYICbNd37EVxWVZA2TwfkkWKSt RDq3xX6NJSd71h0lxDvzv7Ph3NUq23rq3LycAkjqfhiFjPQmE6axtnioXcR5mtVp q9tilB/3I4zj4BIYPfd9KowkdclRSK+B3Oo0DTyuVhKLggF0UD3poDxT4HxnBCFB uKDV8GDsoD8Ksjsl0/X/D4oorqLYAT0tG9gxMw1Kii16gijhhu5qeqTWY+qs9ieg 2J+Ku83QLQgljvy2s7y0AnMZMxaeKN5YMs6zNV+yGAoTFyft3CnBMKalPHfOCI0A fdKHi2aKm+lLrp/UIG2Yw9N1xfcrGWA2moH+9dw6zTyAei+TInP+WYndI7VR5EDf 3KvW3OoRf0sywA== =83r/ -----END PGP SIGNATURE----- Merge tag 'timers-urgent-2024-11-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull timer fix from Thomas Gleixner: "A single fix for posix CPU timers. When a thread is cloned, the posix CPU timers are not inherited. If the parent has a CPU timer armed the corresponding tick dependency in the tasks tick_dep_mask is set and copied to the new thread, which means the new thread and all decendants will prevent the system to go into full NOHZ operation. Clear the tick dependency mask in copy_process() to fix this" * tag 'timers-urgent-2024-11-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: posix-cpu-timers: Clear TICK_DEP_BIT_POSIX_TIMER on clone |
||
Dmitry Torokhov
|
071b24b54d |
Input: fix regression when re-registering input handlers
Commit |
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Linus Torvalds
|
269ce3bd62 |
drm fixes for 6.12-rc6
xe: - Fix missing HPD interrupt enabling, bringing one PM refactor with it - Workaround LNL GGTT invalidation not being visible to GuC - Avoid getting jobs stuck without a protecting timeout ivpu: - Fix firewall IRQ handling panthor: - Fix firmware initialization wrt page sizes - Fix handling and reporting of dead job groups sched: - Guarantee forward progress via WC_MEM_RECLAIM tests: - Fix memory leak in drm_display_mode_from_cea_vic() amdgpu: - DCN 3.5 fix - Vangogh SMU KASAN fix - SMU 13 profile reporting fix mediatek: - Fix degradation problem of alpha blending - Fix color format MACROs in OVL - Fix get efuse issue for MT8188 DPTX - Fix potential NULL dereference in mtk_crtc_destroy() - Correct dpi power-domains property - Add split subschema property constraints -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEEKbZHaGwW9KfbeusDHTzWXnEhr4FAmclJX4ACgkQDHTzWXnE hr7rEw/9E+zpgUW52ThBDpdE4A2O0qdSUd8LtQJbkgx+Us85Hv2p9e+HOhQqrKMj 9O4pwh47oI4vbk3uL68EQTkmmqBUbLNRhfTnps/kVPiMQLklzl3cUw7Jdq2/1E0r Nyh+kJFsHXFcHwB2lB2Cy+ATT8Vw28WlWni7y3hZZvzCrbOVSN16bXmTbjQ/vQYR TSIwJF9P9h+P96JMBXdGhZx3eyiMOqd5EfeLcR9fKRdQsY4ZVk+9Q5CKS/pyKfXP A9e+MHrHf7fSlFT3zptXZ9l4CLo6QGxGppYy79h8hp1oLPFmm1jnWFfDPdFSa/qm +ZTPncf0fz5m4YmJZFTcS+69ITQDjON6FBOu3fnoGuLG8+31/G+/1+uvrNxOID0T zbRcJCPPtdSpDRWsl5+29HviHTvhniM+zYZIaYl1LrCDxMAqoUjAB3dRZKgKHXmF KW7kILXe33m82X7V+jVuELp4m4Q062CIa5tTvDDJ3iPRFKc4HAIioD33g1DPLRPy +A1iwvC0EoghID6eTxVnncQO1snlgXeS4begUtx2E/LkkIH3TbtStM5aaz7tHgNT LTTk2YsGr+5JQQ8N1ci1clZUfSD9xgFlDwobUBGMg2Lo+tVEKhHp8c1Q3quCt214 7PMmNOQXr243vmcs7gvl19pfy0HZRBdISabRazFYCYhiwCsvZQE= =U58l -----END PGP SIGNATURE----- Merge tag 'drm-fixes-2024-11-02' of https://gitlab.freedesktop.org/drm/kernel Pull drm fixes from Dave Airlie: "Regular fixes pull, nothing too out of the ordinary, the mediatek fixes came in a batch that I might have preferred a bit earlier but all seem fine, otherwise regular xe/amdgpu and a few misc ones. xe: - Fix missing HPD interrupt enabling, bringing one PM refactor with it - Workaround LNL GGTT invalidation not being visible to GuC - Avoid getting jobs stuck without a protecting timeout ivpu: - Fix firewall IRQ handling panthor: - Fix firmware initialization wrt page sizes - Fix handling and reporting of dead job groups sched: - Guarantee forward progress via WC_MEM_RECLAIM tests: - Fix memory leak in drm_display_mode_from_cea_vic() amdgpu: - DCN 3.5 fix - Vangogh SMU KASAN fix - SMU 13 profile reporting fix mediatek: - Fix degradation problem of alpha blending - Fix color format MACROs in OVL - Fix get efuse issue for MT8188 DPTX - Fix potential NULL dereference in mtk_crtc_destroy() - Correct dpi power-domains property - Add split subschema property constraints" * tag 'drm-fixes-2024-11-02' of https://gitlab.freedesktop.org/drm/kernel: (27 commits) drm/xe: Don't short circuit TDR on jobs not started drm/xe: Add mmio read before GGTT invalidate drm/tests: hdmi: Fix memory leaks in drm_display_mode_from_cea_vic() drm/connector: hdmi: Fix memory leak in drm_display_mode_from_cea_vic() drm/tests: helpers: Add helper for drm_display_mode_from_cea_vic() drm/panthor: Report group as timedout when we fail to properly suspend drm/panthor: Fail job creation when the group is dead drm/panthor: Fix firmware initialization on systems with a page size > 4k accel/ivpu: Fix NOC firewall interrupt handling drm/xe/display: Add missing HPD interrupt enabling during non-d3cold RPM resume drm/xe/display: Separate the d3cold and non-d3cold runtime PM handling drm/xe: Remove runtime argument from display s/r functions drm/amdgpu/smu13: fix profile reporting drm/amd/pm: Vangogh: Fix kernel memory out of bounds write Revert "drm/amd/display: update DML2 policy EnhancedPrefetchScheduleAccelerationFinal DCN35" drm/sched: Mark scheduler work queues with WQ_MEM_RECLAIM drm/tegra: Fix NULL vs IS_ERR() check in probe() dt-bindings: display: mediatek: split: add subschema property constraints dt-bindings: display: mediatek: dpi: correct power-domains property drm/mediatek: Fix potential NULL dereference in mtk_crtc_destroy() ... |
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Linus Torvalds
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b1966a1fd2 |
cxl fixes for v6.12-rc6
- Fix crashes when running with cxl-test code - Fix Trace DRAM Event Record field decodes - Fix module/built in initialization order errors - Fix use after free on decoder shutdowns - Fix out of order decoder allocations - Improve cxl-test to better reflect real world systems -----BEGIN PGP SIGNATURE----- iIoEABYKADIWIQSgX9xt+GwmrJEQ+euebuN7TNx1MQUCZyUaZhQcaXJhLndlaW55 QGludGVsLmNvbQAKCRCebuN7TNx1MRHmAP40P0fHjUxtA3FxxPiJLOouUUEfMzyr z2hstFw6gh1CNgEA4a4cOyDSe41ptqGFRIHfPeay7l8MdYtFV3iiYeDPnAA= =awb7 -----END PGP SIGNATURE----- Merge tag 'cxl-fixes-6.12-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl Pull cxl fixes from Ira Weiny: "The bulk of these fixes center around an initialization order bug reported by Gregory Price and some additional fall out from the debugging effort. In summary, cxl_acpi and cxl_mem race and previously worked because of a bus_rescan_devices() while testing without modules built in. Unfortunately with modules built in the rescan would fail due to the cxl_port driver being registered late via the build order. Furthermore it was found bus_rescan_devices() did not guarantee a probe barrier which CXL was expecting. Additional fixes to cxl-test and decoder allocation came along as they were found in this debugging effort. The other fixes are pretty minor but one affects trace point data seen by user space. Summary: - Fix crashes when running with cxl-test code - Fix Trace DRAM Event Record field decodes - Fix module/built in initialization order errors - Fix use after free on decoder shutdowns - Fix out of order decoder allocations - Improve cxl-test to better reflect real world systems" * tag 'cxl-fixes-6.12-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl: cxl/test: Improve init-order fidelity relative to real-world systems cxl/port: Prevent out-of-order decoder allocation cxl/port: Fix use-after-free, permit out-of-order decoder shutdown cxl/acpi: Ensure ports ready at cxl_acpi_probe() return cxl/port: Fix cxl_bus_rescan() vs bus_rescan_devices() cxl/port: Fix CXL port initialization order when the subsystem is built-in cxl/events: Fix Trace DRAM Event Record cxl/core: Return error when cxl_endpoint_gather_bandwidth() handles a non-PCI device |
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Linus Torvalds
|
c426456857 |
ACPI fix for 6.12-rc6
Make the ACPI CPPC library use a raw spinlock for operations carried out in scheduler context via the schedutil governor and the ACPI CPPC cpufreq driver (Pierre Gondois). -----BEGIN PGP SIGNATURE----- iQJGBAABCAAwFiEE4fcc61cGeeHD/fCwgsRv/nhiVHEFAmclHlESHHJqd0Byand5 c29ja2kubmV0AAoJEILEb/54YlRxkasQAKKLQlbVhzb/JZvd56VpJH6Ma0ImuXvX uyqhO3gjiCdSx1pxLakaBXM4J887Mtsx5hfy7WrsbUEkEUJqkrwScJee4zjcCH2k tWai3Q7YJsqDg4/7Pq8T9uFNEue9ZvWAOuQ/wV8kBPSIuQKCQ59d83eosQyOnSYE Avaa78URdnszOXmn3a9chzIUD4HWCmF+/v1D+Bw/HR1vqrdoBnlaRfq9PUsWSjUe 91CP0HI5I6brKipJgjxv/joxXqKCmvnSkBnD+sk8OyR9kASk8j1TKn1YZDoiNY0x bQI5NlOVm+Sx1RTMQCDY1y2EsmIvVYtxHTkPm87dy/q6xyXkwAKBXkfaogsn7fgb IbHQrpWnenQP/M49Iqwq0BVelX9jVaWPLtCMYA9nsrYsgUlCH/0rlQ9rcKcP0uhn qIbkUt40AyrYmVFon2D+upa7ccqFpfVX/9LljwFujxSwNVGA0tAl52GTQ6+jLWfE bOOq8dIJdra03T1IDpmgq/GK3RlYHDZVt/QsaZ2SYBZgh9wl4A65tX97++tsP0Re ytZES41uPqmuN4gmR+/T6RL3tb/c7N/7R5Zk/o51kFMFP0DCuOP6GO7JLPAgkRj+ e/6zq+eaIcSuDzYCfzh66zlcOexj4EucjImKe/AC1VJSF5qgK98QJlAqn1jbfonk 09ErkHWNwjNl =vxLs -----END PGP SIGNATURE----- Merge tag 'acpi-6.12-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull ACPI fix from Rafael Wysocki: "Make the ACPI CPPC library use a raw spinlock for operations carried out in scheduler context via the schedutil governor and the ACPI CPPC cpufreq driver (Pierre Gondois)" * tag 'acpi-6.12-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: ACPI: CPPC: Make rmw_lock a raw_spin_lock |
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Linus Torvalds
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3dfffd506e |
arm64 fixes for -rc6
- Fix handling of POR_EL0 during signal delivery so that pushing the
signal context doesn't fail based on the pkey configuration of the
interrupted context and align our user-visible behaviour with that of
x86.
- Fix a bogus pointer being passed to the CPU hotplug code from the
Arm SDEI driver.
- Re-enable software tag-based KASAN with GCC by using an alternative
implementation of '__no_sanitize_address'.
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Will Deacon:
"The important one is a change to the way in which we handle protection
keys around signal delivery so that we're more closely aligned with
the x86 behaviour, however there is also a revert of the previous fix
to disable software tag-based KASAN with GCC, since a workaround
materialised shortly afterwards.
I'd love to say we're done with 6.12, but we're aware of some
longstanding fpsimd register corruption issues that we're almost at
the bottom of resolving.
Summary:
- Fix handling of POR_EL0 during signal delivery so that pushing the
signal context doesn't fail based on the pkey configuration of the
interrupted context and align our user-visible behaviour with that
of x86.
- Fix a bogus pointer being passed to the CPU hotplug code from the
Arm SDEI driver.
- Re-enable software tag-based KASAN with GCC by using an alternative
implementation of '__no_sanitize_address'"
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: signal: Improve POR_EL0 handling to avoid uaccess failures
firmware: arm_sdei: Fix the input parameter of cpuhp_remove_state()
Revert "kasan: Disable Software Tag-Based KASAN with GCC"
kasan: Fix Software Tag-Based KASAN with GCC
|
||
|
Linus Torvalds
|
17fa6a5f93 |
vfs-6.12-rc6.iomap
-----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRAhzRXHqcMeLMyaSiRxhvAZXjcogUCZyTGVAAKCRCRxhvAZXjc oltEAP9r8cWa3Tdv8DzMNWu/jezTUXoW/mX5Qe+c1L6faqj0WQD/dIVtBtG37Tfq 3Ci9F/GEWjKijtCQ5lwMGUq27jQJ1gk= =/0iA -----END PGP SIGNATURE----- Merge tag 'vfs-6.12-rc6.iomap' of gitolite.kernel.org:pub/scm/linux/kernel/git/vfs/vfs Pull iomap fixes from Christian Brauner: "Fixes for iomap to prevent data corruption bugs in the fallocate unshare range implementation of fsdax and a small cleanup to turn iomap_want_unshare_iter() into an inline function" * tag 'vfs-6.12-rc6.iomap' of gitolite.kernel.org:pub/scm/linux/kernel/git/vfs/vfs: iomap: turn iomap_want_unshare_iter into an inline function fsdax: dax_unshare_iter needs to copy entire blocks fsdax: remove zeroing code from dax_unshare_iter iomap: share iomap_unshare_iter predicate code with fsdax xfs: don't allocate COW extents when unsharing a hole |
||
|
Linus Torvalds
|
d56239a82e |
vfs-6.12-rc6.fixes
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Merge tag 'vfs-6.12-rc6.fixes' of gitolite.kernel.org:pub/scm/linux/kernel/git/vfs/vfs
Pull filesystem fixes from Christian Brauner:
"VFS:
- Fix copy_page_from_iter_atomic() if KMAP_LOCAL_FORCE_MAP=y is set
- Add a get_tree_bdev_flags() helper that allows to modify e.g.,
whether errors are logged into the filesystem context during
superblock creation. This is used by erofs to fix a userspace
regression where an error is currently logged when its used on a
regular file which is an new allowed mode in erofs.
netfs:
- Fix the sysfs debug path in the documentation.
- Fix iov_iter_get_pages*() for folio queues by skipping the page
extracation if we're at the end of a folio.
afs:
- Fix moving subdirectories to different parent directory.
autofs:
- Fix handling of AUTOFS_DEV_IOCTL_TIMEOUT_CMD ioctl in
validate_dev_ioctl(). The actual ioctl number, not the ioctl
command needs to be checked for autofs"
* tag 'vfs-6.12-rc6.fixes' of gitolite.kernel.org:pub/scm/linux/kernel/git/vfs/vfs:
iov_iter: fix copy_page_from_iter_atomic() if KMAP_LOCAL_FORCE_MAP
autofs: fix thinko in validate_dev_ioctl()
iov_iter: Fix iov_iter_get_pages*() for folio_queue
afs: Fix missing subdir edit when renamed between parent dirs
doc: correcting the debug path for cachefiles
erofs: use get_tree_bdev_flags() to avoid misleading messages
fs/super.c: introduce get_tree_bdev_flags()
|
||
|
Linus Torvalds
|
5635f18942 |
BPF fixes:
- Fix BPF verifier to force a checkpoint when the program's jump history becomes too long (Eduard Zingerman) - Add several fixes to the BPF bits iterator addressing issues like memory leaks and overflow problems (Hou Tao) - Fix an out-of-bounds write in trie_get_next_key (Byeonguk Jeong) - Fix BPF test infra's LIVE_FRAME frame update after a page has been recycled (Toke Høiland-Jørgensen) - Fix BPF verifier and undo the 40-bytes extra stack space for bpf_fastcall patterns due to various bugs (Eduard Zingerman) - Fix a BPF sockmap race condition which could trigger a NULL pointer dereference in sock_map_link_update_prog (Cong Wang) - Fix tcp_bpf_recvmsg_parser to retrieve seq_copied from tcp_sk under the socket lock (Jiayuan Chen) Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> -----BEGIN PGP SIGNATURE----- iIsEABYIADMWIQTFp0I1jqZrAX+hPRXbK58LschIgwUCZyQO/RUcZGFuaWVsQGlv Z2VhcmJveC5uZXQACgkQ2yufC7HISIO2vAD+NAng11x6W9tnIOVDHTwvsWL4aafQ pmf1zda90bwCIyIA/07ptFPWOH+WTmWqP8pZ9PGY5279KAxurZZDud0SOwIO =28aY -----END PGP SIGNATURE----- Merge tag 'bpf-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf Pull bpf fixes from Daniel Borkmann: - Fix BPF verifier to force a checkpoint when the program's jump history becomes too long (Eduard Zingerman) - Add several fixes to the BPF bits iterator addressing issues like memory leaks and overflow problems (Hou Tao) - Fix an out-of-bounds write in trie_get_next_key (Byeonguk Jeong) - Fix BPF test infra's LIVE_FRAME frame update after a page has been recycled (Toke Høiland-Jørgensen) - Fix BPF verifier and undo the 40-bytes extra stack space for bpf_fastcall patterns due to various bugs (Eduard Zingerman) - Fix a BPF sockmap race condition which could trigger a NULL pointer dereference in sock_map_link_update_prog (Cong Wang) - Fix tcp_bpf_recvmsg_parser to retrieve seq_copied from tcp_sk under the socket lock (Jiayuan Chen) * tag 'bpf-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf: bpf, test_run: Fix LIVE_FRAME frame update after a page has been recycled selftests/bpf: Add three test cases for bits_iter bpf: Use __u64 to save the bits in bits iterator bpf: Check the validity of nr_words in bpf_iter_bits_new() bpf: Add bpf_mem_alloc_check_size() helper bpf: Free dynamically allocated bits in bpf_iter_bits_destroy() bpf: disallow 40-bytes extra stack for bpf_fastcall patterns selftests/bpf: Add test for trie_get_next_key() bpf: Fix out-of-bounds write in trie_get_next_key() selftests/bpf: Test with a very short loop bpf: Force checkpoint when jmp history is too long bpf: fix filed access without lock sock_map: fix a NULL pointer dereference in sock_map_link_update_prog() |
||
|
Linus Torvalds
|
90602c251c |
Including fixes from WiFi, bluetooth and netfilter.
No known new regressions outstanding.
Current release - regressions:
- wifi: mt76: do not increase mcu skb refcount if retry is not supported
Current release - new code bugs:
- wifi:
- rtw88: fix the RX aggregation in USB 3 mode
- mac80211: fix memory corruption bug in struct ieee80211_chanctx
Previous releases - regressions:
- sched:
- stop qdisc_tree_reduce_backlog on TC_H_ROOT
- sch_api: fix xa_insert() error path in tcf_block_get_ext()
- wifi:
- revert "wifi: iwlwifi: remove retry loops in start"
- cfg80211: clear wdev->cqm_config pointer on free
- netfilter: fix potential crash in nf_send_reset6()
- ip_tunnel: fix suspicious RCU usage warning in ip_tunnel_find()
- bluetooth: fix null-ptr-deref in hci_read_supported_codecs
- eth: mlxsw: add missing verification before pushing Tx header
- eth: hns3: fixed hclge_fetch_pf_reg accesses bar space out of bounds issue
Previous releases - always broken:
- wifi: mac80211: do not pass a stopped vif to the driver in .get_txpower
- netfilter: sanitize offset and length before calling skb_checksum()
- core:
- fix crash when config small gso_max_size/gso_ipv4_max_size
- skip offload for NETIF_F_IPV6_CSUM if ipv6 header contains extension
- mptcp: protect sched with rcu_read_lock
- eth: ice: fix crash on probe for DPLL enabled E810 LOM
- eth: macsec: fix use-after-free while sending the offloading packet
- eth: stmmac: fix unbalanced DMA map/unmap for non-paged SKB data
- eth: hns3: fix kernel crash when 1588 is sent on HIP08 devices
- eth: mtk_wed: fix path of MT7988 WO firmware
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Merge tag 'net-6.12-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Paolo Abeni:
"Including fixes from WiFi, bluetooth and netfilter.
No known new regressions outstanding.
Current release - regressions:
- wifi: mt76: do not increase mcu skb refcount if retry is not
supported
Current release - new code bugs:
- wifi:
- rtw88: fix the RX aggregation in USB 3 mode
- mac80211: fix memory corruption bug in struct ieee80211_chanctx
Previous releases - regressions:
- sched:
- stop qdisc_tree_reduce_backlog on TC_H_ROOT
- sch_api: fix xa_insert() error path in tcf_block_get_ext()
- wifi:
- revert "wifi: iwlwifi: remove retry loops in start"
- cfg80211: clear wdev->cqm_config pointer on free
- netfilter: fix potential crash in nf_send_reset6()
- ip_tunnel: fix suspicious RCU usage warning in ip_tunnel_find()
- bluetooth: fix null-ptr-deref in hci_read_supported_codecs
- eth: mlxsw: add missing verification before pushing Tx header
- eth: hns3: fixed hclge_fetch_pf_reg accesses bar space out of
bounds issue
Previous releases - always broken:
- wifi: mac80211: do not pass a stopped vif to the driver in
.get_txpower
- netfilter: sanitize offset and length before calling skb_checksum()
- core:
- fix crash when config small gso_max_size/gso_ipv4_max_size
- skip offload for NETIF_F_IPV6_CSUM if ipv6 header contains extension
- mptcp: protect sched with rcu_read_lock
- eth: ice: fix crash on probe for DPLL enabled E810 LOM
- eth: macsec: fix use-after-free while sending the offloading packet
- eth: stmmac: fix unbalanced DMA map/unmap for non-paged SKB data
- eth: hns3: fix kernel crash when 1588 is sent on HIP08 devices
- eth: mtk_wed: fix path of MT7988 WO firmware"
* tag 'net-6.12-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (70 commits)
net: hns3: fix kernel crash when 1588 is sent on HIP08 devices
net: hns3: fixed hclge_fetch_pf_reg accesses bar space out of bounds issue
net: hns3: initialize reset_timer before hclgevf_misc_irq_init()
net: hns3: don't auto enable misc vector
net: hns3: Resolved the issue that the debugfs query result is inconsistent.
net: hns3: fix missing features due to dev->features configuration too early
net: hns3: fixed reset failure issues caused by the incorrect reset type
net: hns3: add sync command to sync io-pgtable
net: hns3: default enable tx bounce buffer when smmu enabled
netfilter: nft_payload: sanitize offset and length before calling skb_checksum()
net: ethernet: mtk_wed: fix path of MT7988 WO firmware
selftests: forwarding: Add IPv6 GRE remote change tests
mlxsw: spectrum_ipip: Fix memory leak when changing remote IPv6 address
mlxsw: pci: Sync Rx buffers for device
mlxsw: pci: Sync Rx buffers for CPU
mlxsw: spectrum_ptp: Add missing verification before pushing Tx header
net: skip offload for NETIF_F_IPV6_CSUM if ipv6 header contains extension
Bluetooth: hci: fix null-ptr-deref in hci_read_supported_codecs
netfilter: nf_reject_ipv6: fix potential crash in nf_send_reset6()
netfilter: Fix use-after-free in get_info()
...
|
||
Dave Airlie
|
989c5b9051 |
Short summary of fixes pull:
ivpu: - Fix firewall IRQ handling panthor: - Fix firmware initialization wrt page sizes - Fix handling and reporting of dead job groups sched: - Guarantee forward progress via WC_MEM_RECLAIM tests: - Fix memory leak in drm_display_mode_from_cea_vic() -----BEGIN PGP SIGNATURE----- iQEzBAABCgAdFiEEchf7rIzpz2NEoWjlaA3BHVMLeiMFAmcjl28ACgkQaA3BHVML eiMePgf/aO8pHJDeUzDzbQ4FnT38RRlwpBCG6Z8BYBHU7QsSfrZ8f99quHArK9Pq DwSWkb44YgEETaerfXO4QizhmVFVcM9CnDKJzLg598dqfo9mAXu3mnXS8UKnEA43 wz9KAkdkl7P+fsGfvYK8iN/rSeHISQvh2XU5XF/tp7UNtc0HHwfvK/+MC+rkPo/z cwOErNUXEQFfW0f0Y5g2bvcIB5xykdY7JOtHVbVe6Y0fuw66wuznE/vexYSbgoE+ taJhQTNuz6E8rWKyNUR4PLvggYj5MU57uk94dWx34AFXKDS6TBiZph1auQctXldu 6caGwJkcIsCmCy0n+iWoiNahH10NRA== =m9+F -----END PGP SIGNATURE----- Merge tag 'drm-misc-fixes-2024-10-31' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-fixes Short summary of fixes pull: ivpu: - Fix firewall IRQ handling panthor: - Fix firmware initialization wrt page sizes - Fix handling and reporting of dead job groups sched: - Guarantee forward progress via WC_MEM_RECLAIM tests: - Fix memory leak in drm_display_mode_from_cea_vic() Signed-off-by: Dave Airlie <airlied@redhat.com> From: Thomas Zimmermann <tzimmermann@suse.de> Link: https://patchwork.freedesktop.org/patch/msgid/20241031144348.GA7826@linux-2.fritz.box |
||
Jinjie Ruan
|
caa714f866 |
drm/tests: helpers: Add helper for drm_display_mode_from_cea_vic()
As Maxime suggested, add a new helper drm_kunit_display_mode_from_cea_vic(), it can replace the direct call of drm_display_mode_from_cea_vic(), and it will help solving the `mode` memory leaks. Acked-by: Maxime Ripard <mripard@kernel.org> Suggested-by: Maxime Ripard <mripard@kernel.org> Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com> Link: https://patchwork.freedesktop.org/patch/msgid/20241030023504.530425-2-ruanjinjie@huawei.com Signed-off-by: Maxime Ripard <mripard@kernel.org> |
||
|
Yu Zhao
|
9d08ec41a0 |
mm: allow set/clear page_type again
Some page flags (page->flags) were converted to page types
(page->page_types). A recent example is PG_hugetlb.
From the exclusive writer's perspective, e.g., a thread doing
__folio_set_hugetlb(), there is a difference between the page flag and
type APIs: the former allows the same non-atomic operation to be repeated
whereas the latter does not. For example, calling __folio_set_hugetlb()
twice triggers VM_BUG_ON_FOLIO(), since the second call expects the type
(PG_hugetlb) not to be set previously.
Using add_hugetlb_folio() as an example, it calls __folio_set_hugetlb() in
the following error-handling path. And when that happens, it triggers the
aforementioned VM_BUG_ON_FOLIO().
if (folio_test_hugetlb(folio)) {
rc = hugetlb_vmemmap_restore_folio(h, folio);
if (rc) {
spin_lock_irq(&hugetlb_lock);
add_hugetlb_folio(h, folio, false);
...
It is possible to make hugeTLB comply with the new requirements from the
page type API. However, a straightforward fix would be to just allow the
same page type to be set or cleared again inside the API, to avoid any
changes to its callers.
Link: https://lkml.kernel.org/r/20241020042212.296781-1-yuzhao@google.com
Fixes:
|
||
Kairui Song
|
5168a68eb7 |
mm, swap: avoid over reclaim of full clusters
When running low on usable slots, cluster allocator will try to reclaim
the full clusters aggressively to reclaim HAS_CACHE slots. This
guarantees that as long as there are any usable slots, HAS_CACHE or not,
the swap device will be usable and workload won't go OOM early.
Before the cluster allocator, swap allocator fails easily if device is
filled up with reclaimable HAS_CACHE slots. Which can be easily
reproduced with following simple program:
#include <stdio.h>
#include <string.h>
#include <linux/mman.h>
#include <sys/mman.h>
#define SIZE 8192UL * 1024UL * 1024UL
int main(int argc, char **argv) {
long tmp;
char *p = mmap(NULL, SIZE, PROT_READ | PROT_WRITE,
MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
memset(p, 0, SIZE);
madvise(p, SIZE, MADV_PAGEOUT);
for (unsigned long i = 0; i < SIZE; ++i)
tmp += p[i];
getchar(); /* Pause */
return 0;
}
Setup an 8G non ramdisk swap, the first run of the program will swapout 8G
ram successfully. But run same program again after the first run paused,
the second run can't swapout all 8G memory as now half of the swap device
is pinned by HAS_CACHE. There was a random scan in the old allocator that
may reclaim part of the HAS_CACHE by luck, but it's unreliable.
The new allocator's added reclaim of full clusters when device is low on
usable slots. But when multiple CPUs are seeing the device is low on
usable slots at the same time, they ran into a thundering herd problem.
This is an observable problem on large machine with mass parallel
workload, as full cluster reclaim is slower on large swap device and
higher number of CPUs will also make things worse.
Testing using a 128G ZRAM on a 48c96t system. When the swap device is
very close to full (eg. 124G / 128G), running build linux kernel with
make -j96 in a 1G memory cgroup will hung (not a softlockup though)
spinning in full cluster reclaim for about ~5min before go OOM.
To solve this, split the full reclaim into two parts:
- Instead of do a synchronous aggressively reclaim when device is low,
do only one aggressively reclaim when device is strictly full with a
kworker. This still ensures in worst case the device won't be unusable
because of HAS_CACHE slots.
- To avoid allocation (especially higher order) suffer from HAS_CACHE
filling up clusters and kworker not responsive enough, do one synchronous
scan every time the free list is drained, and only scan one cluster. This
is kind of similar to the random reclaim before, keeps the full clusters
rotated and has a minimal latency. This should provide a fair reclaim
strategy suitable for most workloads.
Link: https://lkml.kernel.org/r/20241022175512.10398-1-ryncsn@gmail.com
Fixes:
|
||
Hao Ge
|
f4657e16e7 |
mm/codetag: fix null pointer check logic for ref and tag
When we compile and load lib/slub_kunit.c,it will cause a panic.
The root cause is that __kmalloc_cache_noprof was directly called instead
of kmem_cache_alloc,which resulted in no alloc_tag being allocated.This
caused current->alloc_tag to be null,leading to a null pointer dereference
in alloc_tag_ref_set.
Despite the fact that my colleague Pei Xiao will later fix the code in
slub_kunit.c,we still need fix null pointer check logic for ref and tag to
avoid panic caused by a null pointer dereference.
Here is the log for the panic:
[ 74.779373][ T2158] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000020
[ 74.780130][ T2158] Mem abort info:
[ 74.780406][ T2158] ESR = 0x0000000096000004
[ 74.780756][ T2158] EC = 0x25: DABT (current EL), IL = 32 bits
[ 74.781225][ T2158] SET = 0, FnV = 0
[ 74.781529][ T2158] EA = 0, S1PTW = 0
[ 74.781836][ T2158] FSC = 0x04: level 0 translation fault
[ 74.782288][ T2158] Data abort info:
[ 74.782577][ T2158] ISV = 0, ISS = 0x00000004, ISS2 = 0x00000000
[ 74.783068][ T2158] CM = 0, WnR = 0, TnD = 0, TagAccess = 0
[ 74.783533][ T2158] GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0
[ 74.784010][ T2158] user pgtable: 4k pages, 48-bit VAs, pgdp=0000000105f34000
[ 74.784586][ T2158] [0000000000000020] pgd=0000000000000000, p4d=0000000000000000
[ 74.785293][ T2158] Internal error: Oops: 0000000096000004 [#1] SMP
[ 74.785805][ T2158] Modules linked in: slub_kunit kunit ip6t_rpfilter ip6t_REJECT nf_reject_ipv6 ipt_REJECT nf_reject_ipv4 xt_conntrack ebtable_nat ebtable_broute ip6table_nat ip6table_mangle 4
[ 74.790661][ T2158] CPU: 0 UID: 0 PID: 2158 Comm: kunit_try_catch Kdump: loaded Tainted: G W N 6.12.0-rc3+ #2
[ 74.791535][ T2158] Tainted: [W]=WARN, [N]=TEST
[ 74.791889][ T2158] Hardware name: QEMU KVM Virtual Machine, BIOS 0.0.0 02/06/2015
[ 74.792479][ T2158] pstate: 40400005 (nZcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[ 74.793101][ T2158] pc : alloc_tagging_slab_alloc_hook+0x120/0x270
[ 74.793607][ T2158] lr : alloc_tagging_slab_alloc_hook+0x120/0x270
[ 74.794095][ T2158] sp : ffff800084d33cd0
[ 74.794418][ T2158] x29: ffff800084d33cd0 x28: 0000000000000000 x27: 0000000000000000
[ 74.795095][ T2158] x26: 0000000000000000 x25: 0000000000000012 x24: ffff80007b30e314
[ 74.795822][ T2158] x23: ffff000390ff6f10 x22: 0000000000000000 x21: 0000000000000088
[ 74.796555][ T2158] x20: ffff000390285840 x19: fffffd7fc3ef7830 x18: ffffffffffffffff
[ 74.797283][ T2158] x17: ffff8000800e63b4 x16: ffff80007b33afc4 x15: ffff800081654c00
[ 74.798011][ T2158] x14: 0000000000000000 x13: 205d383531325420 x12: 5b5d383734363537
[ 74.798744][ T2158] x11: ffff800084d337e0 x10: 000000000000005d x9 : 00000000ffffffd0
[ 74.799476][ T2158] x8 : 7f7f7f7f7f7f7f7f x7 : ffff80008219d188 x6 : c0000000ffff7fff
[ 74.800206][ T2158] x5 : ffff0003fdbc9208 x4 : ffff800081edd188 x3 : 0000000000000001
[ 74.800932][ T2158] x2 : 0beaa6dee1ac5a00 x1 : 0beaa6dee1ac5a00 x0 : ffff80037c2cb000
[ 74.801656][ T2158] Call trace:
[ 74.801954][ T2158] alloc_tagging_slab_alloc_hook+0x120/0x270
[ 74.802494][ T2158] __kmalloc_cache_noprof+0x148/0x33c
[ 74.802976][ T2158] test_kmalloc_redzone_access+0x4c/0x104 [slub_kunit]
[ 74.803607][ T2158] kunit_try_run_case+0x70/0x17c [kunit]
[ 74.804124][ T2158] kunit_generic_run_threadfn_adapter+0x2c/0x4c [kunit]
[ 74.804768][ T2158] kthread+0x10c/0x118
[ 74.805141][ T2158] ret_from_fork+0x10/0x20
[ 74.805540][ T2158] Code: b9400a80 11000400 b9000a80 97ffd858 (f94012d3)
[ 74.806176][ T2158] SMP: stopping secondary CPUs
[ 74.808130][ T2158] Starting crashdump kernel...
Link: https://lkml.kernel.org/r/20241020070819.307944-1-hao.ge@linux.dev
Fixes:
|
||
|
Linus Torvalds
|
0fc810ae3a |
x86/uaccess: Avoid barrier_nospec() in 64-bit copy_from_user()
The barrier_nospec() in 64-bit copy_from_user() is slow. Instead use pointer masking to force the user pointer to all 1's for an invalid address. The kernel test robot reports a 2.6% improvement in the per_thread_ops benchmark [1]. This is a variation on a patch originally by Josh Poimboeuf [2]. Link: https://lore.kernel.org/202410281344.d02c72a2-oliver.sang@intel.com [1] Link: https://lore.kernel.org/5b887fe4c580214900e21f6c61095adf9a142735.1730166635.git.jpoimboe@kernel.org [2] Tested-and-reviewed-by: Josh Poimboeuf <jpoimboe@kernel.org> Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
||
Hou Tao
|
62a898b07b |
bpf: Add bpf_mem_alloc_check_size() helper
Introduce bpf_mem_alloc_check_size() to check whether the allocation size exceeds the limitation for the kmalloc-equivalent allocator. The upper limit for percpu allocation is LLIST_NODE_SZ bytes larger than non-percpu allocation, so a percpu argument is added to the helper. The helper will be used in the following patch to check whether the size parameter passed to bpf_mem_alloc() is too big. Signed-off-by: Hou Tao <houtao1@huawei.com> Link: https://lore.kernel.org/r/20241030100516.3633640-3-houtao@huaweicloud.com Signed-off-by: Alexei Starovoitov <ast@kernel.org> |
||
Ido Schimmel
|
ad4a3ca6a8 |
ipv4: ip_tunnel: Fix suspicious RCU usage warning in ip_tunnel_init_flow()
There are code paths from which the function is called without holding
the RCU read lock, resulting in a suspicious RCU usage warning [1].
Fix by using l3mdev_master_upper_ifindex_by_index() which will acquire
the RCU read lock before calling
l3mdev_master_upper_ifindex_by_index_rcu().
[1]
WARNING: suspicious RCU usage
6.12.0-rc3-custom-gac8f72681cf2 #141 Not tainted
-----------------------------
net/core/dev.c:876 RCU-list traversed in non-reader section!!
other info that might help us debug this:
rcu_scheduler_active = 2, debug_locks = 1
1 lock held by ip/361:
#0: ffffffff86fc7cb0 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x377/0xf60
stack backtrace:
CPU: 3 UID: 0 PID: 361 Comm: ip Not tainted 6.12.0-rc3-custom-gac8f72681cf2 #141
Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
Call Trace:
<TASK>
dump_stack_lvl+0xba/0x110
lockdep_rcu_suspicious.cold+0x4f/0xd6
dev_get_by_index_rcu+0x1d3/0x210
l3mdev_master_upper_ifindex_by_index_rcu+0x2b/0xf0
ip_tunnel_bind_dev+0x72f/0xa00
ip_tunnel_newlink+0x368/0x7a0
ipgre_newlink+0x14c/0x170
__rtnl_newlink+0x1173/0x19c0
rtnl_newlink+0x6c/0xa0
rtnetlink_rcv_msg+0x3cc/0xf60
netlink_rcv_skb+0x171/0x450
netlink_unicast+0x539/0x7f0
netlink_sendmsg+0x8c1/0xd80
____sys_sendmsg+0x8f9/0xc20
___sys_sendmsg+0x197/0x1e0
__sys_sendmsg+0x122/0x1f0
do_syscall_64+0xbb/0x1d0
entry_SYSCALL_64_after_hwframe+0x77/0x7f
Fixes:
|
||
Pierre Gondois
|
1c10941e34 |
ACPI: CPPC: Make rmw_lock a raw_spin_lock
The following BUG was triggered:
=============================
[ BUG: Invalid wait context ]
6.12.0-rc2-XXX #406 Not tainted
-----------------------------
kworker/1:1/62 is trying to lock:
ffffff8801593030 (&cpc_ptr->rmw_lock){+.+.}-{3:3}, at: cpc_write+0xcc/0x370
other info that might help us debug this:
context-{5:5}
2 locks held by kworker/1:1/62:
#0: ffffff897ef5ec98 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2c/0x50
#1: ffffff880154e238 (&sg_policy->update_lock){....}-{2:2}, at: sugov_update_shared+0x3c/0x280
stack backtrace:
CPU: 1 UID: 0 PID: 62 Comm: kworker/1:1 Not tainted 6.12.0-rc2-g9654bd3e8806 #406
Workqueue: 0x0 (events)
Call trace:
dump_backtrace+0xa4/0x130
show_stack+0x20/0x38
dump_stack_lvl+0x90/0xd0
dump_stack+0x18/0x28
__lock_acquire+0x480/0x1ad8
lock_acquire+0x114/0x310
_raw_spin_lock+0x50/0x70
cpc_write+0xcc/0x370
cppc_set_perf+0xa0/0x3a8
cppc_cpufreq_fast_switch+0x40/0xc0
cpufreq_driver_fast_switch+0x4c/0x218
sugov_update_shared+0x234/0x280
update_load_avg+0x6ec/0x7b8
dequeue_entities+0x108/0x830
dequeue_task_fair+0x58/0x408
__schedule+0x4f0/0x1070
schedule+0x54/0x130
worker_thread+0xc0/0x2e8
kthread+0x130/0x148
ret_from_fork+0x10/0x20
sugov_update_shared() locks a raw_spinlock while cpc_write() locks a
spinlock.
To have a correct wait-type order, update rmw_lock to a raw spinlock and
ensure that interrupts will be disabled on the CPU holding it.
Fixes:
|
||
Lorenzo Stoakes
|
985da552a9 |
fork: only invoke khugepaged, ksm hooks if no error
There is no reason to invoke these hooks early against an mm that is in an incomplete state. The change in commit |
||
|
Lorenzo Stoakes
|
f64e67e5d3 |
fork: do not invoke uffd on fork if error occurs
Patch series "fork: do not expose incomplete mm on fork". During fork we may place the virtual memory address space into an inconsistent state before the fork operation is complete. In addition, we may encounter an error during the fork operation that indicates that the virtual memory address space is invalidated. As a result, we should not be exposing it in any way to external machinery that might interact with the mm or VMAs, machinery that is not designed to deal with incomplete state. We specifically update the fork logic to defer khugepaged and ksm to the end of the operation and only to be invoked if no error arose, and disallow uffd from observing fork events should an error have occurred. This patch (of 2): Currently on fork we expose the virtual address space of a process to userland unconditionally if uffd is registered in VMAs, regardless of whether an error arose in the fork. This is performed in dup_userfaultfd_complete() which is invoked unconditionally, and performs two duties - invoking registered handlers for the UFFD_EVENT_FORK event via dup_fctx(), and clearing down userfaultfd_fork_ctx objects established in dup_userfaultfd(). This is problematic, because the virtual address space may not yet be correctly initialised if an error arose. The change in commit |
||
Benjamin Segall
|
b5413156ba |
posix-cpu-timers: Clear TICK_DEP_BIT_POSIX_TIMER on clone
When cloning a new thread, its posix_cputimers are not inherited, and
are cleared by posix_cputimers_init(). However, this does not clear the
tick dependency it creates in tsk->tick_dep_mask, and the handler does
not reach the code to clear the dependency if there were no timers to
begin with.
Thus if a thread has a cputimer running before clone/fork, all
descendants will prevent nohz_full unless they create a cputimer of
their own.
Fix this by entirely clearing the tick_dep_mask in copy_process().
(There is currently no inherited state that needs a tick dependency)
Process-wide timers do not have this problem because fork does not copy
signal_struct as a baseline, it creates one from scratch.
Fixes:
|
||
Dan Williams
|
101c268bd2 |
cxl/port: Fix use-after-free, permit out-of-order decoder shutdown
In support of investigating an initialization failure report [1],
cxl_test was updated to register mock memory-devices after the mock
root-port/bus device had been registered. That led to cxl_test crashing
with a use-after-free bug with the following signature:
cxl_port_attach_region: cxl region3: cxl_host_bridge.0:port3 decoder3.0 add: mem0:decoder7.0 @ 0 next: cxl_switch_uport.0 nr_eps: 1 nr_targets: 1
cxl_port_attach_region: cxl region3: cxl_host_bridge.0:port3 decoder3.0 add: mem4:decoder14.0 @ 1 next: cxl_switch_uport.0 nr_eps: 2 nr_targets: 1
cxl_port_setup_targets: cxl region3: cxl_switch_uport.0:port6 target[0] = cxl_switch_dport.0 for mem0:decoder7.0 @ 0
1) cxl_port_setup_targets: cxl region3: cxl_switch_uport.0:port6 target[1] = cxl_switch_dport.4 for mem4:decoder14.0 @ 1
[..]
cxld_unregister: cxl decoder14.0:
cxl_region_decode_reset: cxl_region region3:
mock_decoder_reset: cxl_port port3: decoder3.0 reset
2) mock_decoder_reset: cxl_port port3: decoder3.0: out of order reset, expected decoder3.1
cxl_endpoint_decoder_release: cxl decoder14.0:
[..]
cxld_unregister: cxl decoder7.0:
3) cxl_region_decode_reset: cxl_region region3:
Oops: general protection fault, probably for non-canonical address 0x6b6b6b6b6b6b6bc3: 0000 [#1] PREEMPT SMP PTI
[..]
RIP: 0010:to_cxl_port+0x8/0x60 [cxl_core]
[..]
Call Trace:
<TASK>
cxl_region_decode_reset+0x69/0x190 [cxl_core]
cxl_region_detach+0xe8/0x210 [cxl_core]
cxl_decoder_kill_region+0x27/0x40 [cxl_core]
cxld_unregister+0x5d/0x60 [cxl_core]
At 1) a region has been established with 2 endpoint decoders (7.0 and
14.0). Those endpoints share a common switch-decoder in the topology
(3.0). At teardown, 2), decoder14.0 is the first to be removed and hits
the "out of order reset case" in the switch decoder. The effect though
is that region3 cleanup is aborted leaving it in-tact and
referencing decoder14.0. At 3) the second attempt to teardown region3
trips over the stale decoder14.0 object which has long since been
deleted.
The fix here is to recognize that the CXL specification places no
mandate on in-order shutdown of switch-decoders, the driver enforces
in-order allocation, and hardware enforces in-order commit. So, rather
than fail and leave objects dangling, always remove them.
In support of making cxl_region_decode_reset() always succeed,
cxl_region_invalidate_memregion() failures are turned into warnings.
Crashing the kernel is ok there since system integrity is at risk if
caches cannot be managed around physical address mutation events like
CXL region destruction.
A new device_for_each_child_reverse_from() is added to cleanup
port->commit_end after all dependent decoders have been disabled. In
other words if decoders are allocated 0->1->2 and disabled 1->2->0 then
port->commit_end only decrements from 2 after 2 has been disabled, and
it decrements all the way to zero since 1 was disabled previously.
Link: http://lore.kernel.org/20241004212504.1246-1-gourry@gourry.net [1]
Cc: stable@vger.kernel.org
Fixes:
|
||
|
Linus Torvalds
|
81dcc79758 |
fuse fixes for 6.12-rc5
-----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQSQHSd0lITzzeNWNm3h3BK/laaZPAUCZxu02AAKCRDh3BK/laaZ PLDHAPwMzz4c+wbqz8Qo2IEo3lxvgPjgzMNXQetCgZFKvxKRlwD+PaIeRixGwwmB ON3IsScZjROphzb+ofroUpj7lLEM7Ag= =9rYN -----END PGP SIGNATURE----- Merge tag 'fuse-fixes-6.12-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse Pull fuse fixes from Miklos Szeredi: - Fix cached size after passthrough writes This fix needed a trivial change in the backing-file API, which resulted in some non-fuse files being touched. - Revert a commit meant as a cleanup but which triggered a WARNING - Remove a stray debug line left-over * tag 'fuse-fixes-6.12-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse: fuse: remove stray debug line Revert "fuse: move initialization of fuse_file to fuse_writepages() instead of in callback" fuse: update inode size after extending passthrough write fs: pass offset and result to backing_file end_write() callback |
||
|
Linus Torvalds
|
86d6688e60 |
fbdev fixes for 6.12-rc5:
- Fix some build warnings and failures with CONFIG_FB_IOMEM_FOPS and CONFIG_FB_DEVICE - Remove the da8xx fbdev driver - Constify struct sbus_mmap_map and fix indentation warning -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQS86RI+GtKfB8BJu973ErUQojoPXwUCZxu/TwAKCRD3ErUQojoP XwV/AQC8Q0gNXLH2kx5pgtGwtSHkDJYG0NeMgyN4mUWuk7IEugEAhapxyU+7ZsEk ttpTmiNQU8z80SySPmmgy8/v5VSTpQg= =fh1y -----END PGP SIGNATURE----- Merge tag 'fbdev-for-6.12-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev Pull fbdev fixes from Helge Deller: - Fix some build warnings and failures with CONFIG_FB_IOMEM_FOPS and CONFIG_FB_DEVICE - Remove the da8xx fbdev driver - Constify struct sbus_mmap_map and fix indentation warning * tag 'fbdev-for-6.12-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev: fbdev: wm8505fb: select CONFIG_FB_IOMEM_FOPS fbdev: da8xx: remove the driver fbdev: Constify struct sbus_mmap_map fbdev: nvidiafb: fix inconsistent indentation warning fbdev: sstfb: Make CONFIG_FB_DEVICE optional |
||
|
Linus Torvalds
|
01154cc30e |
sound fixes for 6.12-rc5
The majority of changes here are about ASoC. There are two core changes in ASoC (the bump of minimal topology ABI version and the fix for references of components in DAPM code), and others are mostly various device-specific fixes for SoundWire, AMD, Intel, SOF, Qualcomm and FSL, in addition to a few usual HD-audio quirks and fixes. -----BEGIN PGP SIGNATURE----- iQJCBAABCAAsFiEEIXTw5fNLNI7mMiVaLtJE4w1nLE8FAmcbWbMOHHRpd2FpQHN1 c2UuZGUACgkQLtJE4w1nLE/YKxAAt4WhN/98T2y5RBZEpDyDrxFF3TGNhgHO61tv 9zEpOpz2CR4vP7qbImTlzWZ8ehcbqQK3I3xlq/xsD8/nRacUyVO1XX3Zb+SlSYGp Ln6IFiLSnCuJKavEJtoWbEIsg+jhKQCvApq55Yxvxk/PO91Sehx+/LWa0ZeHbVrG ChJRXStBEfUu1eBQL/7oMPkXm7QJYzR3pE4eieom33I4wJXFRHrBtSR4Ldj1kpCJ GQKVqZVkUgFLLzHckJyHTswi2wX1w8H6FWTIQydqK8beHCCEBR3c3PzUQgI5QXwS Hfe2lyvOkK78eAPn8GdAAT1cMdMfAy/iLC78QDGhk117JACOzEU8mRWYS3Dh268a W8iiNYhnTRC/7M6OM+boD7IhCXADlA3wiEwV4n5BtqkjmXkNJDEWxMZrUyk6R/rO csEsARtue3ISClEnU0ih3Ebl3iHCUlzzCkG0bNPkMnw6dRtJyppg9LpBijt7Y6Ep DyaAGFBI5qMcOHIh6A35m8K3d9YwnqhAj/ZdmMLS34r8e96KdBNH4yKo7ftqqHXW eRDCDSjKdeWSfymutwV2jfVLR0e1C77ysL9z1MZgoRfLskjpET3Qp526hIBe+qoG TbGl5VLyZqhRmHwYxdDsAq+XbMm41eHJskg49iOIG3Cru1y30y0or2R1e9r10/eB Ue8Pb1w= =hhTD -----END PGP SIGNATURE----- Merge tag 'sound-6.12-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound Pull sound fixes from Takashi Iwai: "The majority of changes here are about ASoC. There are two core changes in ASoC (the bump of minimal topology ABI version and the fix for references of components in DAPM code), and others are mostly various device-specific fixes for SoundWire, AMD, Intel, SOF, Qualcomm and FSL, in addition to a few usual HD-audio quirks and fixes" * tag 'sound-6.12-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (33 commits) ALSA: hda/realtek: Update default depop procedure ASoC: qcom: sc7280: Fix missing Soundwire runtime stream alloc ASoC: fsl_micfil: Add sample rate constraint ASoC: rt722-sdca: increase clk_stop_timeout to fix clock stop issue ALSA: hda/tas2781: select CRC32 instead of CRC32_SARWATE ALSA: hda/realtek: Add subwoofer quirk for Acer Predator G9-593 ALSA: firewire-lib: Avoid division by zero in apply_constraint_to_size() ASoC: fsl_micfil: Add a flag to distinguish with different volume control types ASoC: codecs: lpass-rx-macro: fix RXn(rx,n) macro for DSM_CTL and SEC7 regs ASoC: Change my e-mail to gmail ASoC: Intel: soc-acpi: lnl: Add match entry for TM2 laptops ASoC: amd: yc: Fix non-functional mic on ASUS E1404FA ASoC: SOF: Intel: hda: Always clean up link DMA during stop soundwire: intel_ace2x: Send PDI stream number during prepare ASoC: SOF: Intel: hda: Handle prepare without close for non-HDA DAI's ASoC: SOF: ipc4-topology: Do not set ALH node_id for aggregated DAIs MAINTAINERS: Update maintainer list for MICROCHIP ASOC, SSC and MCP16502 drivers ASoC: qcom: Select missing common Soundwire module code on SDM845 ASoC: fsl_esai: change dev_warn to dev_dbg in irq handler ASoC: rsnd: Fix probe failure on HiHope boards due to endpoint parsing ... |
||
David S. Miller
|
e31a8219fb |
wireless fixes for v6.12-rc5
The first set of wireless fixes for v6.12. We have been busy and have not been able to send this earlier, so there are more fixes than usual. The fixes are all over, both in stack and in drivers, but nothing special really standing out. -----BEGIN PGP SIGNATURE----- iQFFBAABCgAvFiEEiBjanGPFTz4PRfLobhckVSbrbZsFAmcWl7MRHGt2YWxvQGtl cm5lbC5vcmcACgkQbhckVSbrbZv0Qgf/fQJKXkGJkvozrbJATkKHfHKUOphIl4Y8 /r3SlrsIL6qXZAUq5N+NH9vfUeKt5kkKG8Fc8yrJaygDLsV9v1LGiBSsb5eJ+PfM 4fCOdzPSrWG984dLwsCK8UGEzfQ1G4d6HckwubUMimK2X/m6wx/99fenjMAQvdWO rjAJmpAkgoT0Fvf8GD3joMBKKjMFr2KT8tgbfvwpyr9cXAPZYf35+74Nl84UjHiP rGTGN++NQuPMsYyYIPPA+eMNUnlUVyDah+UVmzsMp27YUdKBKjx23kRH6tKM/46H dWqpqEV50xshlPaotHoFg9+4KRrxnxwvFtGTsnbvHcuSnkPBUusAvw== =l6SI -----END PGP SIGNATURE----- Merge tag 'wireless-2024-10-21' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless wireless fixes for v6.12-rc5 The first set of wireless fixes for v6.12. We have been busy and have not been able to send this earlier, so there are more fixes than usual. The fixes are all over, both in stack and in drivers, but nothing special really standing out. |
||
|
Linus Torvalds
|
ae90f6a617 |
BPF fixes:
- Fix an out-of-bounds read in bpf_link_show_fdinfo for BPF sockmap link file descriptors (Hou Tao) - Fix BPF arm64 JIT's address emission with tag-based KASAN enabled reserving not enough size (Peter Collingbourne) - Fix BPF verifier do_misc_fixups patching for inlining of the bpf_get_branch_snapshot BPF helper (Andrii Nakryiko) - Fix a BPF verifier bug and reject BPF program write attempts into read-only marked BPF maps (Daniel Borkmann) - Fix perf_event_detach_bpf_prog error handling by removing an invalid check which would skip BPF program release (Jiri Olsa) - Fix memory leak when parsing mount options for the BPF filesystem (Hou Tao) Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> -----BEGIN PGP SIGNATURE----- iIsEABYIADMWIQTFp0I1jqZrAX+hPRXbK58LschIgwUCZxrAzxUcZGFuaWVsQGlv Z2VhcmJveC5uZXQACgkQ2yufC7HISIPcHwD8DnBSPlHX9OezMWCm8mjVx2Fd26W9 /IaiW2tyOPtoSGIA/3hfgfLrxkb3Raoh0miQB2+FRrz9e+y7i8c4Q91mcUgJ =Hvht -----END PGP SIGNATURE----- Merge tag 'bpf-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf Pull bpf fixes from Daniel Borkmann: - Fix an out-of-bounds read in bpf_link_show_fdinfo for BPF sockmap link file descriptors (Hou Tao) - Fix BPF arm64 JIT's address emission with tag-based KASAN enabled reserving not enough size (Peter Collingbourne) - Fix BPF verifier do_misc_fixups patching for inlining of the bpf_get_branch_snapshot BPF helper (Andrii Nakryiko) - Fix a BPF verifier bug and reject BPF program write attempts into read-only marked BPF maps (Daniel Borkmann) - Fix perf_event_detach_bpf_prog error handling by removing an invalid check which would skip BPF program release (Jiri Olsa) - Fix memory leak when parsing mount options for the BPF filesystem (Hou Tao) * tag 'bpf-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf: bpf: Check validity of link->type in bpf_link_show_fdinfo() bpf: Add the missing BPF_LINK_TYPE invocation for sockmap bpf: fix do_misc_fixups() for bpf_get_branch_snapshot() bpf,perf: Fix perf_event_detach_bpf_prog error handling selftests/bpf: Add test for passing in uninit mtu_len selftests/bpf: Add test for writes to .rodata bpf: Remove MEM_UNINIT from skb/xdp MTU helpers bpf: Fix overloading of MEM_UNINIT's meaning bpf: Add MEM_WRITE attribute bpf: Preserve param->string when parsing mount options bpf, arm64: Fix address emission with tag-based KASAN enabled |
||
|
Linus Torvalds
|
d44cd82264 |
Including fixes from netfiler, xfrm and bluetooth.
Current release - regressions:
- posix-clock: Fix unbalanced locking in pc_clock_settime()
- netfilter: fix typo causing some targets not to load on IPv6
Current release - new code bugs:
- xfrm: policy: remove last remnants of pernet inexact list
Previous releases - regressions:
- core: fix races in netdev_tx_sent_queue()/dev_watchdog()
- bluetooth: fix UAF on sco_sock_timeout
- eth: hv_netvsc: fix VF namespace also in synthetic NIC NETDEV_REGISTER event
- eth: usbnet: fix name regression
- eth: be2net: fix potential memory leak in be_xmit()
- eth: plip: fix transmit path breakage
Previous releases - always broken:
- sched: deny mismatched skip_sw/skip_hw flags for actions created by classifiers
- netfilter: bpf: must hold reference on net namespace
- eth: virtio_net: fix integer overflow in stats
- eth: bnxt_en: replace ptp_lock with irqsave variant
- eth: octeon_ep: add SKB allocation failures handling in __octep_oq_process_rx()
Misc:
- MAINTAINERS: add Simon as an official reviewer
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Merge tag 'net-6.12-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Paolo Abeni:
"Including fixes from netfiler, xfrm and bluetooth.
Oddly this includes a fix for a posix clock regression; in our
previous PR we included a change there as a pre-requisite for
networking one. That fix proved to be buggy and requires the follow-up
included here. Thomas suggested we should send it, given we sent the
buggy patch.
Current release - regressions:
- posix-clock: Fix unbalanced locking in pc_clock_settime()
- netfilter: fix typo causing some targets not to load on IPv6
Current release - new code bugs:
- xfrm: policy: remove last remnants of pernet inexact list
Previous releases - regressions:
- core: fix races in netdev_tx_sent_queue()/dev_watchdog()
- bluetooth: fix UAF on sco_sock_timeout
- eth: hv_netvsc: fix VF namespace also in synthetic NIC
NETDEV_REGISTER event
- eth: usbnet: fix name regression
- eth: be2net: fix potential memory leak in be_xmit()
- eth: plip: fix transmit path breakage
Previous releases - always broken:
- sched: deny mismatched skip_sw/skip_hw flags for actions created by
classifiers
- netfilter: bpf: must hold reference on net namespace
- eth: virtio_net: fix integer overflow in stats
- eth: bnxt_en: replace ptp_lock with irqsave variant
- eth: octeon_ep: add SKB allocation failures handling in
__octep_oq_process_rx()
Misc:
- MAINTAINERS: add Simon as an official reviewer"
* tag 'net-6.12-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (40 commits)
net: dsa: mv88e6xxx: support 4000ps cycle counter period
net: dsa: mv88e6xxx: read cycle counter period from hardware
net: dsa: mv88e6xxx: group cycle counter coefficients
net: usb: qmi_wwan: add Fibocom FG132 0x0112 composition
hv_netvsc: Fix VF namespace also in synthetic NIC NETDEV_REGISTER event
net: dsa: microchip: disable EEE for KSZ879x/KSZ877x/KSZ876x
Bluetooth: ISO: Fix UAF on iso_sock_timeout
Bluetooth: SCO: Fix UAF on sco_sock_timeout
Bluetooth: hci_core: Disable works on hci_unregister_dev
posix-clock: posix-clock: Fix unbalanced locking in pc_clock_settime()
r8169: avoid unsolicited interrupts
net: sched: use RCU read-side critical section in taprio_dump()
net: sched: fix use-after-free in taprio_change()
net/sched: act_api: deny mismatched skip_sw/skip_hw flags for actions created by classifiers
net: usb: usbnet: fix name regression
mlxsw: spectrum_router: fix xa_store() error checking
virtio_net: fix integer overflow in stats
net: fix races in netdev_tx_sent_queue()/dev_watchdog()
net: wwan: fix global oob in wwan_rtnl_policy
netfilter: xtables: fix typo causing some targets not to load on IPv6
...
|
||
|
Linus Torvalds
|
3964f82a4d |
LoongArch fixes for v6.12-rc5
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||
|
Hou Tao
|
c2f803052b |
bpf: Add the missing BPF_LINK_TYPE invocation for sockmap
There is an out-of-bounds read in bpf_link_show_fdinfo() for the sockmap
link fd. Fix it by adding the missing BPF_LINK_TYPE invocation for
sockmap link
Also add comments for bpf_link_type to prevent missing updates in the
future.
Fixes:
|
||
David Howells
|
247d65fb12 |
afs: Fix missing subdir edit when renamed between parent dirs
When rename moves an AFS subdirectory between parent directories, the
subdir also needs a bit of editing: the ".." entry needs updating to point
to the new parent (though I don't make use of the info) and the DV needs
incrementing by 1 to reflect the change of content. The server also sends
a callback break notification on the subdirectory if we have one, but we
can take care of recovering the promise next time we access the subdir.
This can be triggered by something like:
mount -t afs %example.com:xfstest.test20 /xfstest.test/
mkdir /xfstest.test/{aaa,bbb,aaa/ccc}
touch /xfstest.test/bbb/ccc/d
mv /xfstest.test/{aaa/ccc,bbb/ccc}
touch /xfstest.test/bbb/ccc/e
When the pathwalk for the second touch hits "ccc", kafs spots that the DV
is incorrect and downloads it again (so the fix is not critical).
Fix this, if the rename target is a directory and the old and new
parents are different, by:
(1) Incrementing the DV number of the target locally.
(2) Editing the ".." entry in the target to refer to its new parent's
vnode ID and uniquifier.
Link: https://lore.kernel.org/r/3340431.1729680010@warthog.procyon.org.uk
Fixes:
|
||
Paolo Abeni
|
1876479d98 |
bluetooth pull request for net:
- hci_core: Disable works on hci_unregister_dev - SCO: Fix UAF on sco_sock_timeout - ISO: Fix UAF on iso_sock_timeout -----BEGIN PGP SIGNATURE----- iQJNBAABCAA3FiEE7E6oRXp8w05ovYr/9JCA4xAyCykFAmcZB+0ZHGx1aXoudm9u LmRlbnR6QGludGVsLmNvbQAKCRD0kIDjEDILKWcfD/4j4Q3W01y1UotsTKa1et7V r6ydZfHBwU/ND8G8t7sfg4zJ6daYcYY6ERllj92JYCHdmrwILzt3WEgCAAC1Y8dj r6RUXFapGSwE3YMIdDstcKgsfYV+zzKL+IBt0VRjhEMeoEEczzRGldk8Y8Z9ePhm 9Jyw1WDmid9DkIfIdrTKjnLH5HsjYZSvIJfkVuKKcfRshdolxfokHv9DpbPIbueO ya33a/mnHVKnLyZPT72uP2DANkP218+zHI+dCjE6279LzrXJkQKLKThf/3bTGO+o NohqGEj9NsIp8NqS/jr1yzvXOIqXkA5cG0Qrix+OyZuvBIohukTFyes1f2hcRHoh l41s+IorviUhrtEPZ2ki/AWyXTVpWJl2EQ6XPf6iUexF2PDCgTzILN4WIELBTZse cEWPVbMI+ZEq9FHX1P9Vfc+Yje4glTXcQzBSlfaljPmbW0CouxYCJ4kEj+5m4F6V xBUevpIz3dRUMST4tXaOrhso/Th2zCDDbWwp6ImEZQ8xBM5wm8sDrjkZOtWEWRNc miLEnkfqZxJmt6b8DfGzeM/p3FJ9i7OsCo6tUVEH4mGATViD8QOUaqMk/kxV5Wh0 ORB3cWk4VYTvXGuPceEH7u8yBslbUzmad/eMOK52ErP4UrORhESZYoaDy3ALcr7A 4z+9xBlOlezKTe5puR5ulw== =gOTr -----END PGP SIGNATURE----- Merge tag 'for-net-2024-10-23' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth Luiz Augusto von Dentz says: ==================== bluetooth pull request for net: - hci_core: Disable works on hci_unregister_dev - SCO: Fix UAF on sco_sock_timeout - ISO: Fix UAF on iso_sock_timeout * tag 'for-net-2024-10-23' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth: Bluetooth: ISO: Fix UAF on iso_sock_timeout Bluetooth: SCO: Fix UAF on sco_sock_timeout Bluetooth: hci_core: Disable works on hci_unregister_dev ==================== Link: https://patch.msgid.link/20241023143005.2297694-1-luiz.dentz@gmail.com Signed-off-by: Paolo Abeni <pabeni@redhat.com> |
||
|
Paolo Abeni
|
1e424d08d3 |
ipsec-2024-10-22
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||
Takashi Iwai
|
c9f7a144e7 |
ASoC: Fixes for v6.12
An uncomfortably large set of fixes due to me not getting round to
sending them for longer than I should due to travel and illness. This
is mostly smaller driver specific changes, but there are a couple of
generic changes:
- Bumping the minimal topology ABI we check for during validation, the
code had support for v4 removed previously but the update of the
define used for initial validation was missed.
- Fix the assumption that DAPM structs will be embedded in a component
which isn't true for card widgets when doing name comparisons, though
fortunately this is rarely triggered.
We've pulled in one Soundwire fix which was part of a larger series
fixing cleanup issues in on Intel Soundwire systems.
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Merge tag 'asoc-fix-v6.12-rc4' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Fixes for v6.12
An uncomfortably large set of fixes due to me not getting round to
sending them for longer than I should due to travel and illness. This
is mostly smaller driver specific changes, but there are a couple of
generic changes:
- Bumping the minimal topology ABI we check for during validation, the
code had support for v4 removed previously but the update of the
define used for initial validation was missed.
- Fix the assumption that DAPM structs will be embedded in a component
which isn't true for card widgets when doing name comparisons, though
fortunately this is rarely triggered.
We've pulled in one Soundwire fix which was part of a larger series
fixing cleanup issues in on Intel Soundwire systems.
|
||
Marco Elver
|
894b00a335 |
kasan: Fix Software Tag-Based KASAN with GCC
Per [1], -fsanitize=kernel-hwaddress with GCC currently does not disable
instrumentation in functions with __attribute__((no_sanitize_address)).
However, __attribute__((no_sanitize("hwaddress"))) does correctly
disable instrumentation. Use it instead.
Link: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117196 [1]
Link: https://lore.kernel.org/r/000000000000f362e80620e27859@google.com
Link: https://lore.kernel.org/r/ZvFGwKfoC4yVjN_X@J2N7QTR9R3
Link: https://bugzilla.kernel.org/show_bug.cgi?id=218854
Reported-by: syzbot+908886656a02769af987@syzkaller.appspotmail.com
Tested-by: Andrey Konovalov <andreyknvl@gmail.com>
Cc: Andrew Pinski <pinskia@gmail.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Marco Elver <elver@google.com>
Reviewed-by: Andrey Konovalov <andreyknvl@gmail.com>
Fixes:
|
||
Luiz Augusto von Dentz
|
1bf4470a39 |
Bluetooth: SCO: Fix UAF on sco_sock_timeout
conn->sk maybe have been unlinked/freed while waiting for sco_conn_lock
so this checks if the conn->sk is still valid by checking if it part of
sco_sk_list.
Reported-by: syzbot+4c0d0c4cde787116d465@syzkaller.appspotmail.com
Tested-by: syzbot+4c0d0c4cde787116d465@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=4c0d0c4cde787116d465
Fixes:
|
||
Daniel Borkmann
|
6fad274f06 |
bpf: Add MEM_WRITE attribute
Add a MEM_WRITE attribute for BPF helper functions which can be used in
bpf_func_proto to annotate an argument type in order to let the verifier
know that the helper writes into the memory passed as an argument. In
the past MEM_UNINIT has been (ab)used for this function, but the latter
merely tells the verifier that the passed memory can be uninitialized.
There have been bugs with overloading the latter but aside from that
there are also cases where the passed memory is read + written which
currently cannot be expressed, see also
|
||
|
Linus Torvalds
|
d129377639 |
ARM64:
* Fix the guest view of the ID registers, making the relevant fields
writable from userspace (affecting ID_AA64DFR0_EL1 and ID_AA64PFR1_EL1)
* Correcly expose S1PIE to guests, fixing a regression introduced
in 6.12-rc1 with the S1POE support
* Fix the recycling of stage-2 shadow MMUs by tracking the context
(are we allowed to block or not) as well as the recycling state
* Address a couple of issues with the vgic when userspace misconfigures
the emulation, resulting in various splats. Headaches courtesy
of our Syzkaller friends
* Stop wasting space in the HYP idmap, as we are dangerously close
to the 4kB limit, and this has already exploded in -next
* Fix another race in vgic_init()
* Fix a UBSAN error when faking the cache topology with MTE
enabled
RISCV:
* RISCV: KVM: use raw_spinlock for critical section in imsic
x86:
* A bandaid for lack of XCR0 setup in selftests, which causes trouble
if the compiler is configured to have x86-64-v3 (with AVX) as the
default ISA. Proper XCR0 setup will come in the next merge window.
* Fix an issue where KVM would not ignore low bits of the nested CR3
and potentially leak up to 31 bytes out of the guest memory's bounds
* Fix case in which an out-of-date cached value for the segments could
by returned by KVM_GET_SREGS.
* More cleanups for KVM_X86_QUIRK_SLOT_ZAP_ALL
* Override MTRR state for KVM confidential guests, making it WB by
default as is already the case for Hyper-V guests.
Generic:
* Remove a couple of unused functions
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull kvm fixes from Paolo Bonzini:
"ARM64:
- Fix the guest view of the ID registers, making the relevant fields
writable from userspace (affecting ID_AA64DFR0_EL1 and
ID_AA64PFR1_EL1)
- Correcly expose S1PIE to guests, fixing a regression introduced in
6.12-rc1 with the S1POE support
- Fix the recycling of stage-2 shadow MMUs by tracking the context
(are we allowed to block or not) as well as the recycling state
- Address a couple of issues with the vgic when userspace
misconfigures the emulation, resulting in various splats. Headaches
courtesy of our Syzkaller friends
- Stop wasting space in the HYP idmap, as we are dangerously close to
the 4kB limit, and this has already exploded in -next
- Fix another race in vgic_init()
- Fix a UBSAN error when faking the cache topology with MTE enabled
RISCV:
- RISCV: KVM: use raw_spinlock for critical section in imsic
x86:
- A bandaid for lack of XCR0 setup in selftests, which causes trouble
if the compiler is configured to have x86-64-v3 (with AVX) as the
default ISA. Proper XCR0 setup will come in the next merge window.
- Fix an issue where KVM would not ignore low bits of the nested CR3
and potentially leak up to 31 bytes out of the guest memory's
bounds
- Fix case in which an out-of-date cached value for the segments
could by returned by KVM_GET_SREGS.
- More cleanups for KVM_X86_QUIRK_SLOT_ZAP_ALL
- Override MTRR state for KVM confidential guests, making it WB by
default as is already the case for Hyper-V guests.
Generic:
- Remove a couple of unused functions"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (27 commits)
RISCV: KVM: use raw_spinlock for critical section in imsic
KVM: selftests: Fix out-of-bounds reads in CPUID test's array lookups
KVM: selftests: x86: Avoid using SSE/AVX instructions
KVM: nSVM: Ignore nCR3[4:0] when loading PDPTEs from memory
KVM: VMX: reset the segment cache after segment init in vmx_vcpu_reset()
KVM: x86: Clean up documentation for KVM_X86_QUIRK_SLOT_ZAP_ALL
KVM: x86/mmu: Add lockdep assert to enforce safe usage of kvm_unmap_gfn_range()
KVM: x86/mmu: Zap only SPs that shadow gPTEs when deleting memslot
x86/kvm: Override default caching mode for SEV-SNP and TDX
KVM: Remove unused kvm_vcpu_gfn_to_pfn_atomic
KVM: Remove unused kvm_vcpu_gfn_to_pfn
KVM: arm64: Ensure vgic_ready() is ordered against MMIO registration
KVM: arm64: vgic: Don't check for vgic_ready() when setting NR_IRQS
KVM: arm64: Fix shift-out-of-bounds bug
KVM: arm64: Shave a few bytes from the EL2 idmap code
KVM: arm64: Don't eagerly teardown the vgic on init error
KVM: arm64: Expose S1PIE to guests
KVM: arm64: nv: Clarify safety of allowing TLBI unmaps to reschedule
KVM: arm64: nv: Punt stage-2 recycling to a vCPU request
KVM: arm64: nv: Do not block when unmapping stage-2 if disallowed
...
|
||
|
Linus Torvalds
|
7166c32651 |
vfs-6.12-rc5.fixes
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Merge tag 'vfs-6.12-rc5.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull vfs fixes from Christian Brauner:
"afs:
- Fix a lock recursion in afs_wake_up_async_call() on ->notify_lock
netfs:
- Drop the references to a folio immediately after the folio has been
extracted to prevent races with future I/O collection
- Fix a documenation build error
- Downgrade the i_rwsem for buffered writes to fix a cifs reported
performance regression when switching to netfslib
vfs:
- Explicitly return -E2BIG from openat2() if the specified size is
unexpectedly large. This aligns openat2() with other extensible
struct based system calls
- When copying a mount namespace ensure that we only try to remove
the new copy from the mount namespace rbtree if it has already been
added to it
nilfs:
- Clear the buffer delay flag when clearing the buffer state clags
when a buffer head is discarded to prevent a kernel OOPs
ocfs2:
- Fix an unitialized value warning in ocfs2_setattr()
proc:
- Fix a kernel doc warning"
* tag 'vfs-6.12-rc5.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
proc: Fix W=1 build kernel-doc warning
afs: Fix lock recursion
fs: Fix uninitialized value issue in from_kuid and from_kgid
fs: don't try and remove empty rbtree node
netfs: Downgrade i_rwsem for a buffered write
nilfs2: fix kernel bug due to missing clearing of buffer delay flag
openat2: explicitly return -E2BIG for (usize > PAGE_SIZE)
netfs: fix documentation build error
netfs: In readahead, put the folio refs as soon extracted
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Christoph Hellwig
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6db388585e |
iomap: turn iomap_want_unshare_iter into an inline function
iomap_want_unshare_iter currently sits in fs/iomap/buffered-io.c, which
depends on CONFIG_BLOCK. It is also in used in fs/dax.c whіch has no
such dependency. Given that it is a trivial check turn it into an inline
in include/linux/iomap.h to fix the DAX && !BLOCK build.
Fixes:
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Bibo Mao
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d2f8671045 |
LoongArch: Set initial pte entry with PAGE_GLOBAL for kernel space
There are two pages in one TLB entry on LoongArch system. For kernel space, it requires both two pte entries (buddies) with PAGE_GLOBAL bit set, otherwise HW treats it as non-global tlb, there will be potential problems if tlb entry for kernel space is not global. Such as fail to flush kernel tlb with the function local_flush_tlb_kernel_range() which supposed only flush tlb with global bit. Kernel address space areas include percpu, vmalloc, vmemmap, fixmap and kasan areas. For these areas both two consecutive page table entries should be enabled with PAGE_GLOBAL bit. So with function set_pte() and pte_clear(), pte buddy entry is checked and set besides its own pte entry. However it is not atomic operation to set both two pte entries, there is problem with test_vmalloc test case. So function kernel_pte_init() is added to init a pte table when it is created for kernel address space, and the default initial pte value is PAGE_GLOBAL rather than zero at beginning. Then only its own pte entry need update with function set_pte() and pte_clear(), nothing to do with the pte buddy entry. Signed-off-by: Bibo Mao <maobibo@loongson.cn> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn> |
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Gao Xiang
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4021e68513 |
fs/super.c: introduce get_tree_bdev_flags()
As Allison reported [1], currently get_tree_bdev() will store "Can't lookup blockdev" error message. Although it makes sense for pure bdev-based fses, this message may mislead users who try to use EROFS file-backed mounts since get_tree_nodev() is used as a fallback then. Add get_tree_bdev_flags() to specify extensible flags [2] and GET_TREE_BDEV_QUIET_LOOKUP to silence "Can't lookup blockdev" message since it's misleading to EROFS file-backed mounts now. [1] https://lore.kernel.org/r/CAOYeF9VQ8jKVmpy5Zy9DNhO6xmWSKMB-DO8yvBB0XvBE7=3Ugg@mail.gmail.com [2] https://lore.kernel.org/r/ZwUkJEtwIpUA4qMz@infradead.org Suggested-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com> Link: https://lore.kernel.org/r/20241009033151.2334888-1-hsiangkao@linux.alibaba.com Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Jan Kara <jack@suse.cz> Signed-off-by: Christian Brauner <brauner@kernel.org> |
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Eric Dumazet
|
95ecba62e2 |
net: fix races in netdev_tx_sent_queue()/dev_watchdog()
Some workloads hit the infamous dev_watchdog() message:
"NETDEV WATCHDOG: eth0 (xxxx): transmit queue XX timed out"
It seems possible to hit this even for perfectly normal
BQL enabled drivers:
1) Assume a TX queue was idle for more than dev->watchdog_timeo
(5 seconds unless changed by the driver)
2) Assume a big packet is sent, exceeding current BQL limit.
3) Driver ndo_start_xmit() puts the packet in TX ring,
and netdev_tx_sent_queue() is called.
4) QUEUE_STATE_STACK_XOFF could be set from netdev_tx_sent_queue()
before txq->trans_start has been written.
5) txq->trans_start is written later, from netdev_start_xmit()
if (rc == NETDEV_TX_OK)
txq_trans_update(txq)
dev_watchdog() running on another cpu could read the old
txq->trans_start, and then see QUEUE_STATE_STACK_XOFF, because 5)
did not happen yet.
To solve the issue, write txq->trans_start right before one XOFF bit
is set :
- _QUEUE_STATE_DRV_XOFF from netif_tx_stop_queue()
- __QUEUE_STATE_STACK_XOFF from netdev_tx_sent_queue()
From dev_watchdog(), we have to read txq->state before txq->trans_start.
Add memory barriers to enforce correct ordering.
In the future, we could avoid writing over txq->trans_start for normal
operations, and rename this field to txq->xoff_start_time.
Fixes:
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Linus Torvalds
|
c01ac4b944 |
TTY/Serial driver fixes for 6.12-rc4
Here are some small tty and serial driver fixes for 6.12-rc4. Included
in here are:
- qcom-geni serial driver fixes, wow what a mess of a UART chip that
thing is...
- vt infoleak fix for odd font sizes
- imx serial driver bugfix
- yet-another n_gsm ldisc bugfix, slowly chipping down the issues in
that piece of code.
All of these have been in linux-next for over a week with no reported
issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-6.12-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty/serial driver fixes from Greg KH:
"Here are some small tty and serial driver fixes for 6.12-rc4:
- qcom-geni serial driver fixes, wow what a mess of a UART chip that
thing is...
- vt infoleak fix for odd font sizes
- imx serial driver bugfix
- yet-another n_gsm ldisc bugfix, slowly chipping down the issues in
that piece of code
All of these have been in linux-next for over a week with no reported
issues"
* tag 'tty-6.12-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
serial: qcom-geni: rename suspend functions
serial: qcom-geni: drop unused receive parameter
serial: qcom-geni: drop flip buffer WARN()
serial: qcom-geni: fix rx cancel dma status bit
serial: qcom-geni: fix receiver enable
serial: qcom-geni: fix dma rx cancellation
serial: qcom-geni: fix shutdown race
serial: qcom-geni: revert broken hibernation support
serial: qcom-geni: fix polled console initialisation
serial: imx: Update mctrl old_status on RTSD interrupt
tty: n_gsm: Fix use-after-free in gsm_cleanup_mux
vt: prevent kernel-infoleak in con_font_get()
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