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951d09ca45
1484093 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
FUJITA Tomonori
|
951d09ca45 |
rust: bug: pass TAINT_WARN to warn_slowpath_fmt() on UML
On UML, `warn_flags!` calls `warn_slowpath_fmt()` directly. Its third
argument is a taint number, but `warn_on!` passes its bug flags there.
As a result, `add_taint()` gets 2304 instead of 9 (`TAINT_WARN`). The
warning is not recorded: `/proc/sys/kernel/tainted` stays 0 after
`warn_on!` fires, where it should be 512. It also causes an
out-of-bounds write in `add_taint()`.
Pass `TAINT_WARN` directly, as C does on UML.
Cc: stable@vger.kernel.org
Fixes:
|
||
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Thiébaud Weksteen
|
e91836593f |
rust: macros: allow non-ASCII characters in authors
Module authors may have non-ASCII characters in their names. In C, `MODULE_AUTHOR` allows arbitrary string literals which are emitted as raw UTF-8 bytes into the `.modinfo` section, and multiple in-tree modules use non-ASCII author names. Originally, the single `author` field permitted arbitrary string literals including non-ASCII characters. When support for multiple authors was introduced in commit |
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Gary Guo
|
c82c75ae11 |
rust: doctest: trim function name for reproducibility
Currently rustdoc will generate function names like "_doctest_main__home_gary_Projects_linux_rust_kernel_io_rs_824_0" for a doctest located at rust/kernel/io.rs:824, when building with separate outdir using `O=`. This creates overlong symbol names and is also not reproducible. [ `rustdoc` already remaps these paths when we use Rust >= 1.95, thus this fix is needed for older toolchains. - Miguel ] Fix it by doing a custom remapping to trim it to something like `_doctest_main_rust_kernel_io_rs_824_0`. Signed-off-by: Gary Guo <gary@garyguo.net> Link: https://patch.msgid.link/20260924005052.2805129-1-gary@kernel.org [ Added `TODO` comment about the minimum version bump. Reworded title and comment for typos. - Miguel ] Signed-off-by: Miguel Ojeda <ojeda@kernel.org> |
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Miguel Ojeda
|
f9a6960c7b |
rust: bindings: fix VM_MAYSHARE blocklist entry
Commit |
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Lorenzo Stoakes
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7b5ba47d84 |
rust: bindings: fix VM_MAYSHARE value
Commit |
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Linus Torvalds
|
72d3fcf802 | Linux 7.3-rc5 | ||
|
Linus Torvalds
|
d266640c6c |
Driver core fixes for 7.3-rc5
- Suppress spurious "debugfs is not initialized yet" boot warnings when the caller passes an error parent to debugfs file creation; callers propagating an earlier failure should not trigger the warning -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQS2q/xV6QjXAdC7k+1FlHeO1qrKLgUCarkeigAKCRBFlHeO1qrK LsHQAQDS9Zsrclcgi/3nsua2xZFnZ+LNSRspbrAQL3tCxjr6PQD6A1iQpFM47WZY /Tx295xPaXdgcx1dGcuST3JtTNy9SQk= =T76L -----END PGP SIGNATURE----- Merge tag 'driver-core-7.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-core Pull driver core fix from Danilo Krummrich: - Suppress spurious "debugfs is not initialized yet" boot warnings when the caller passes an error parent to debugfs file creation; callers propagating an earlier failure should not trigger the warning * tag 'driver-core-7.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-core: debugfs: don't warn about uninitialized debugfs for an error parent |
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Linus Torvalds
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64d34cef2a |
i2c-fixes for v7.3-rc5
- qcom-geni: select the correct source clock table entry -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQScDfrjQa34uOld1VLaeAVmJtMtbgUCarjo1AAKCRDaeAVmJtMt bkwAAP9RaXfP3wNy+pcmfLXGDO1T3aG0ae4IdBQaGLAyvifmQAEA7Mlqctd1/6fY GpCVypBnha4BFoqhtV456RMnZHs2KgU= =0TbV -----END PGP SIGNATURE----- Merge tag 'i2c-fixes-7.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/andi.shyti/linux Pull i2c fix from Andi Shyti: - qcom-geni: select the correct source clock table entry * tag 'i2c-fixes-7.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/andi.shyti/linux: i2c: qcom-geni: Fix hardcoded clock index in SE_GENI_CLK_SEL |
||
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Linus Torvalds
|
104484baf7 |
workqueue: Fixes for v7.3-rc4
- Fix a NULL dereference in the flush dependency check when a worker flushes outside a work item, such as from the OOM path during worker creation. -----BEGIN PGP SIGNATURE----- iIQEABYKACwWIQTfIjM1kS57o3GsC/uxYfJx3gVYGQUCarjXAw4cdGpAa2VybmVs Lm9yZwAKCRCxYfJx3gVYGa2RAQCDvPDErwcBmDHdeAMr6Rr0pXzDf2pYa6LdLL0B XIPCzQD/Y8d3woLh3/CDUfjpkQE/x7QkWj6paZbiILNcenaA+Ac= =wYPe -----END PGP SIGNATURE----- Merge tag 'wq-for-7.3-rc4-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq Pull workqueue fix from Tejun Heo: - Fix a NULL dereference in the flush dependency check when a worker flushes outside a work item, such as from the OOM path during worker creation * tag 'wq-for-7.3-rc4-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq: workqueue: Fix NULL current_pwq deref in flush dependency check |
||
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Linus Torvalds
|
b1fa457bdd |
cgroup: Fixes for v7.3-rc4
- A cpuset partition could claim CPUs an ancestor partition already held exclusively. Restore the rejection an earlier change had turned into a warning. -----BEGIN PGP SIGNATURE----- iIQEABYKACwWIQTfIjM1kS57o3GsC/uxYfJx3gVYGQUCarjXAw4cdGpAa2VybmVs Lm9yZwAKCRCxYfJx3gVYGctVAQD3UPz2537MRkVZtcy4QfgyObMRXEaTGEBBJV+g ougCLgD/ZOVFjyK/bD3wXgtpiRZq9NbL+VvPQfrOjqz3Q/wVww8= =Vyrg -----END PGP SIGNATURE----- Merge tag 'cgroup-for-7.3-rc4-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup Pull cgroup fix from Tejun Heo: - A cpuset partition could claim CPUs an ancestor partition already held exclusively. Restore the rejection an earlier change had turned into a warning. * tag 'cgroup-for-7.3-rc4-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup: cgroup/cpuset: Return PERR_NOCPUS in remote_partition_enable() on subpartitions_cpus conflict |
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Linus Torvalds
|
7cdf91542e |
sched_ext: Fixes for v7.3-rc4
- The CPU topology helper for BPF schedulers took no buffer size, so its structure couldn't grow without breaking schedulers built against the older layout. Add a size argument. -----BEGIN PGP SIGNATURE----- iIQEABYKACwWIQTfIjM1kS57o3GsC/uxYfJx3gVYGQUCarjW+w4cdGpAa2VybmVs Lm9yZwAKCRCxYfJx3gVYGX2cAP0VlU9fUs+6zw+CPEvxDfRClCsMvwpbHEh9EtFQ 1csnhQD+KnIhvmascPtuZLhcYScKfA9ZvvYw/Nme7RVmQ/I8HA8= =UsTG -----END PGP SIGNATURE----- Merge tag 'sched_ext-for-7.3-rc4-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext Pull sched_ext fix from Tejun Heo: - The CPU topology helper for BPF schedulers took no buffer size, so its structure couldn't grow without breaking schedulers built against the older layout. Add a size argument. * tag 'sched_ext-for-7.3-rc4-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext: sched_ext: Add a size argument to scx_bpf_cid_topo() so struct scx_cid_topo can grow |
||
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Linus Torvalds
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efb44d93a6 |
x86 fixes:
- Fix preemption bugs in the SVSM vTPM guest implementation
(Melody Wang)
- Fix MCE-triggered hardware debug register corruption on
task migration (Masami Hiramatsu)
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'x86-urgent-2026-09-27' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Ingo Molnar:
- Fix preemption bugs in the SVSM vTPM guest implementation
(Melody Wang)
- Fix MCE-triggered hardware debug register corruption on
task migration (Masami Hiramatsu)
* tag 'x86-urgent-2026-09-27' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/mce: Fix hardware debug register corruption on task migration
x86/sev: Make vTPM SVSM calls preemption-safe
|
||
|
Linus Torvalds
|
673dab7eac |
Scheduler fixes:
- Fix LLC mis-scheduling bugs (Tim Chen, Lu Wang)
- Fix cache-grouping related scheduling statistics UAF bugs (Tim Chen)
- Skip kernel threads for cache aware scheduling to rubustify the code
(Chen Yu)
- Refresh LLC capacity across CPU hotplug, to fix capacity
underestimation bug (Davi Chaves Azevedo)
- Account PSI IRQ time to the execution context, not the scheduling
context, to fix proxy scheduling accounting bug (Zhan Xusheng)
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'sched-urgent-2026-09-27' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler fixes from Ingo Molnar:
- Fix LLC mis-scheduling bugs (Tim Chen, Lu Wang)
- Fix cache-grouping related scheduling statistics UAF bugs (Tim Chen)
- Skip kernel threads for cache aware scheduling to rubustify the code
(Chen Yu)
- Refresh LLC capacity across CPU hotplug, to fix capacity
underestimation bug (Davi Chaves Azevedo)
- Account PSI IRQ time to the execution context, not the scheduling
context, to fix proxy scheduling accounting bug (Zhan Xusheng)
* tag 'sched-urgent-2026-09-27' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/core: Account PSI IRQ time to the execution context, not the scheduling context
sched/cache: Refresh LLC capacity across CPU hotplug, to fix capacity underestimation bug
sched/cache: Skip kernel threads for cache aware scheduling to rubustify the code
sched/cache: Introduce task_struct->sched_cache_grp to fix UAF
sched/cache: Decouple sched_cache_group from mm to fix UAF
sched/cache: Honor migrate_llc_task semantics in active load balance, to fix LLC mis-scheduling bug
sched/cache: Keep nr_pref_llc_running in the runnable domain, to fix LLC mis-scheduling bug
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||
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Linus Torvalds
|
5ccda18d1b |
Perf events fixes:
- Fixes for KVM guest PEBS virtualization (Sean Christopherson)
- Fixes for various Intel PMUs related to PEBS data-source
(Dapeng Mi)
- Fix Intel Panther Cove event scheduling constraints (Dapeng Mi)
- Fix Intel DMR/NVL OMR extra registers event scheduling (Dapeng Mi)
- Rename two confusingly named PMU attributes (Dapeng Mi)
- Fix a refcount leak in attach_perf_ctx_data() (Namhyung Kim)
- Fix NULL pointer dereference crash in __perf_pmu_sched_task()
(Puranjay Mohan)
- Fix CPU-wide event scheduling (Puranjay Mohan)
- Fix x86 LBR branch entry generation (Puranjay Mohan)
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'perf-urgent-2026-09-27' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf events fixes from Ingo Molnar:
- Fixes for KVM guest PEBS virtualization (Sean Christopherson)
- Fixes for various Intel PMUs related to PEBS data-source (Dapeng Mi)
- Fix Intel Panther Cove event scheduling constraints (Dapeng Mi)
- Fix Intel DMR/NVL OMR extra registers event scheduling (Dapeng Mi)
- Rename two confusingly named PMU attributes (Dapeng Mi)
- Fix a refcount leak in attach_perf_ctx_data() (Namhyung Kim)
- Fix NULL pointer dereference crash in __perf_pmu_sched_task()
(Puranjay Mohan)
- Fix CPU-wide event scheduling (Puranjay Mohan)
- Fix x86 LBR branch entry generation (Puranjay Mohan)
* tag 'perf-urgent-2026-09-27' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf/core: Fill branch entries with a single assignment
perf/core: Run sched_task() for PMUs with only CPU-wide events
perf/core: Fix NULL pmu_ctx passed to pmu->sched_task()
perf/core: Fix a refcount leak in attach_perf_ctx_data()
perf/x86/intel: Rename NVL offcore_rsp attribute to offmodule_rsp
perf/x86/intel: Rename DMR offcore_rsp attribute to offmodule_rsp
perf/x86/intel: Fix precise OMR event scheduling for DMR/NVL
perf/x86/intel: Constrain Panther Cove UOPS_DISPATCHED events to PMCs 0-3
perf/x86/intel: Delete dead NVL PEBS data-source initcall
perf/x86/intel: Fix Panther Cove PEBS data-source snoop states
perf/x86/intel: Remove incorrect Panther Cove PEBS data-source constraints
perf/x86/intel: Remove incorrect LionCove PEBS data-source constraints
perf/x86/intel: Update arw_latency_data() mem-op direction handling
perf/x86/intel: Fix DKT PEBS load/store direction for latency events, to fix sample classification
perf/x86/intel: Fix CMT PEBS load/store direction for latency events, to fix sample classification
perf/x86/intel: Fix GRT PEBS load/store direction for latency events, to fix sample classification
perf/x86/intel: Make @data a mandatory param for intel_guest_get_msrs()
perf/x86/intel: Don't pointlessly context switch DS_AREA (and PEBS config) if PEBS is unused
perf/x86/intel: Don't write PEBS_ENABLED on host<=>guest xfers if CPU has PEBS isolation, to fix stuck PEBS_ENABLED
perf/x86/intel: Ensure KVM guest PEBS path doesn't set unwanted PERF_GLOBAL_CTRL bits
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Pavankumar Kondeti
|
db6365ced4 |
workqueue: Fix NULL current_pwq deref in flush dependency check
check_flush_dependency() uses current_wq_worker() to determine whether
the caller is a workqueue worker and then dereferences worker->current_pwq
to test whether the current workqueue is WQ_MEM_RECLAIM.
current_wq_worker() only means that %current has PF_WQ_WORKER set. A
kworker can reach check_flush_dependency() while it is not executing a
work item. One such path is worker_thread() acting as the pool manager,
where create_worker() does GFP_KERNEL allocation and the allocation path
invokes the OOM notifier. In that state worker->current_pwq is NULL
because current_pwq is set only by process_one_work() and cleared again
after the work function returns.
[ 416.760634][ T375] Call trace:
[ 416.760638][ T375] check_flush_dependency+0x80/0x120 (P)
[ 416.760648][ T375] __flush_work+0x98/0x224
[ 416.760657][ T375] flush_work+0x30/0x44
[ 416.760665][ T375] ...
[ 416.760710][ T375] blocking_notifier_call_chain+0x58/0xa0
[ 416.760719][ T375] out_of_memory+0xb4/0x458
[ 416.760730][ T375] __alloc_pages_may_oom+0x11c/0x1a8
[ 416.760739][ T375] __alloc_pages_slowpath+0x314/0x46c
[ 416.760746][ T375] __alloc_frozen_pages_noprof+0x110/0x1a4
[ 416.760753][ T375] new_slab+0x12c/0x484
[ 416.760759][ T375] ___slab_alloc+0x7a8/0xc7c
[ 416.760765][ T375] __slab_alloc+0x74/0xd8
[ 416.760772][ T375] __kmalloc_cache_node_noprof+0x2ac/0x304
[ 416.760779][ T375] alloc_worker+0x28/0x60
[ 416.760785][ T375] create_worker+0x4c/0x20c
[ 416.760790][ T375] worker_thread+0xe8/0x2b8
[ 416.760796][ T375] kthread+0x1a8/0x200
[ 416.760805][ T375] ret_from_fork+0x10/0x20
Guard the WQ_MEM_RECLAIM-worker warning with worker->current_pwq. If the
kworker is not currently executing a work item, there is no current
workqueue to diagnose with that warning. The PF_MEMALLOC warning is left
unchanged so explicit reclaim context flushing a !WQ_MEM_RECLAIM target
is still reported.
Fixes:
|
||
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Tejun Heo
|
94480606a6 |
sched_ext: Add a size argument to scx_bpf_cid_topo() so struct scx_cid_topo can grow
scx_bpf_cid_topo() copies struct scx_cid_topo into a buffer the BPF program
sized from its own vmlinux.h while the verifier sizes the write from the
running kernel's BTF. The struct may grow and each growth then breaks every
scheduler built against the older layout, rejected at load or written past
its buffer. This is the usual hole for a struct handed to BPF, closed
elsewhere with a size argument, and it was missed here.
Take the buffer size, copy the smaller of it and the kernel's struct and set
the rest to -1. Accesses to the copy are CO-RE relocated, so the struct can
grow by appending fields, which its comment now states. The kfunc changes in
place: the cid interface is still being finalized and no released scheduler
uses the current form.
Fixes:
|
||
|
Linus Torvalds
|
fd179f8a05 |
ata fixes for 7.3-rc5
- Extend the quirk "no LPM on ATI" quirk, that is currently only
applied for Samsung drives, to include AMD controllers as well.
The AMD AHCI controllers are newer versions of the ATI AHCI
controllers, and these controllers still have LPM issues with
Samsung drives - LPM works with drives from other vendors (me)
- Fix errors in the libata.force parameter documentation (me)
- Verify the sense data descriptor lengths for ATA PASS-THROUGH
command, so that a malicious device cannot write past the buffer
length (Matthias)
- Mention the libata for-next branch in MAINTAINERS such that the
git ls-remote command done by get_maintainer.pl --self-test=scm
can verify it (Matthias)
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Merge tag 'ata-7.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/libata/linux
Pull ata fixes from Niklas Cassel:
- Extend the quirk "no LPM on ATI" quirk, that is currently only
applied for Samsung drives, to include AMD controllers as well.
The AMD AHCI controllers are newer versions of the ATI AHCI
controllers, and these controllers still have LPM issues with
Samsung drives - LPM works with drives from other vendors (me)
- Fix errors in the libata.force parameter documentation (me)
- Verify the sense data descriptor lengths for ATA PASS-THROUGH
command, so that a malicious device cannot write past the buffer
length (Matthias)
- Mention the libata for-next branch in MAINTAINERS such that the
git ls-remote command done by get_maintainer.pl --self-test=scm
can verify it (Matthias)
* tag 'ata-7.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/libata/linux:
MAINTAINERS: name the libata/linux for-next branch
ata: libata-scsi: bound the ATA passthru sense descriptor writes
ata: libata: Correct libata.force parameter documentation
ata: libata-core: Extend Samsung LPM quirk to AMD controllers
|
||
|
Hui Peng
|
31c88350b7 |
cgroup/cpuset: Return PERR_NOCPUS in remote_partition_enable() on subpartitions_cpus conflict
When a remote partition is created underneath an existing local partition via a non-partition (PRS_MEMBER) intermediate cgroup, update_prstate() sees parent->partition_root_state == PRS_MEMBER and calls remote_partition_enable(). Commit |
||
|
Linus Torvalds
|
fddfc3ec31 |
pci-v7.3-fixes-2
-----BEGIN PGP SIGNATURE----- iQJIBAABCgAyFiEEgMe7l+5h9hnxdsnuWYigwDrT+vwFAmq38q4UHGJoZWxnYWFz QGdvb2dsZS5jb20ACgkQWYigwDrT+vwVFhAAhO4zr6WHzB/Tx87FGSxYnjrwzOmH nS/w0MD0FxPkAzhbkPaXkdgAks10dBNF/umQUXvWBwgZYbR9v0CoZBSm8viuq/8C tYOdOm4u4whsHVPU1QJPV5nUSGb2Eiq7vza+2kS1Ll0xy/3/24yVn+IU8sy4EcgX IUTwApHfBGq6se88LxtdT5ctAUCRSP8XAeFlKXqfPig9yrrQOZ0cJrA5nhbe4jCL jJMFjgH12OvR55ZeKyZianz/lCZ8NcyATblM0EUCVKpx1gv4BcPfbprcycgnyLbw R+SoPl0wJDWKGqwuCFYkLMaT4XsLYnJv+6C/aQQ8CJjovAVUzaeDXwlJzPP3hH+N iIZp3b5tULHK/c/AykjoRQPq/rVy9ywMvlqmafIeR4+BEJBVYlUGLhum14pnjAQo B/wLCSmxrP7K7E+71ODunUdpts6HsH+GbKqSjBS46BAY/Vw+icq0v5RxaIaa6WCv BEkVEIfcJ/pnlmxMCoQEVu0bjCrIIaTe7EflO4BDhEIrWTxSq19vCVlXB+XgsHUI DWPyCFnAWFG5bZi50PKkrwTOhmcRMRgAjc69DOZ400chbuMAj9PxpomYBEeWvnss N+DLTLL2Yp4Y8/tMJIxjNB2eAbiSKql2EoGIpyjQruDRmg1Bcug5gBY90RjRr204 afoNJYCbtPnd0mY= =hhCg -----END PGP SIGNATURE----- Merge tag 'pci-v7.3-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci Pull PCI fixes from Bjorn Helgaas: - Make BAR resize work even for devices where no upstream bridge is visible to the OS, which fixes an amdgpu regression on SolidRun HoneyComb, which doesn't expose Root Ports to the OS (Liz Fong-Jones) - Omit bus properties in dynamic OF nodes when a bridge has no subordinate bus, which fixes early boot hangs caused by NULL pointer dereferences with CONFIG_PCI_DYNAMIC_OF_NODES enabled (Angel J) - Disable enhanced atomics on AMD NBIO 7.7 and 7.11 to avoid silent data corruption on 64-bit DMAs (Mario Limonciello) * tag 'pci-v7.3-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci: x86/PCI: Disable enhanced atomics on AMD NBIO 7.7 and 7.11 PCI: of_property: Omit bus properties without a subordinate bus PCI: Fix BAR resize for devices on a root bus |
||
|
Linus Torvalds
|
efb27d4767 |
Probes fixes for v7.3-rc4:
- kprobes: Fix permanent hang when flushing the kprobe optimizer Fix a deadlock when disabling kprobe optimization via sysctl or debugfs where flushers hung waiting for optimizer_completion. Replaced the completion with an optimizer_passes counter and wait_var_event_mutex() under kprobe_mutex so concurrent flushers can wait and wake up safely. - fprobe: Terminate the fgraph_data list when the reservation is not filled Fix an issue where unused shadow stack data left uninitialized by fprobe_fgraph_entry() was misparsed as stale fprobe headers on return. Explicitly write a zero word to terminate the list and update read_fprobe_header() to handle the zeroed slot properly. - ftracetest: Fix unique symbol check in kprobe_non_uniq_symbol.tc Fix false test failures in kprobe_non_uniq_symbol.tc on architectures like s390 where a symbol exists once in core kernel but also in modules. Anchor the /proc/kallsyms search regex to the end of the line so that module symbols are not incorrectly counted. -----BEGIN PGP SIGNATURE----- iQFPBAABCgA5FiEEh7BulGwFlgAOi5DV2/sHvwUrPxsFAmq3llUbHG1hc2FtaS5o aXJhbWF0c3VAZ21haWwuY29tAAoJENv7B78FKz8bAhEH/0EAamjv7/EDUoUq+BOO a2gnlYqvr+zcrDVQLNgiYbvTRDfIFPOdB2LpY7Rguee3747qeL7kkNATD10WFr1F 5lXe5LaLncNIrvHDdtcT5eER5ePAuSDMSL5CwnJrRvXJw42iFsqegZ07nrvc9HFS 5zw7Ej9VnFJFxeXIY3J4U92wkntLJ3JhsNheomOtQmEZU1g5ZPAbdq0icNrC3CAb FTezYk60VG0CT/gNTSd8JFnI4P5vKlZpkFFCLLMmptW4yQU9+ZdT55JRgY7wJ8ye w5rLBTRJrFhDgNAjoehMkoAtxik3dKgede7qlwxUk0sv+gwXssw28b5zabRBJgee XQ8= =cHwO -----END PGP SIGNATURE----- Merge tag 'probes-fixes-v7.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace Pull probe fixes from Masami Hiramatsu: - kprobes: Fix permanent hang when flushing the kprobe optimizer Fix a deadlock when disabling kprobe optimization via sysctl or debugfs where flushers hung waiting for optimizer_completion. Replaced the completion with an optimizer_passes counter and wait_var_event_mutex() under kprobe_mutex so concurrent flushers can wait and wake up safely. - fprobe: Terminate the fgraph_data list when the reservation is not filled Fix an issue where unused shadow stack data left uninitialized by fprobe_fgraph_entry() was misparsed as stale fprobe headers on return. Explicitly write a zero word to terminate the list and update read_fprobe_header() to handle the zeroed slot properly. - ftracetest: Fix unique symbol check in kprobe_non_uniq_symbol.tc Fix false test failures in kprobe_non_uniq_symbol.tc on architectures like s390 where a symbol exists once in core kernel but also in modules. Anchor the /proc/kallsyms search regex to the end of the line so that module symbols are not incorrectly counted. * tag 'probes-fixes-v7.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace: kprobes: Fix permanent hang when flushing the kprobe optimizer fprobe: Terminate the fgraph_data list when the reservation is not filled selftests/ftrace: Fix unique symbol check in kprobe_non_uniq_symbol.tc |
||
|
Linus Torvalds
|
eff8d2791c |
Arm:
- Invalidate the ITS translation cache when the guest changes the
base address of the ITS tables (Fuad Tabba)
- Skip saving ITS devices with device IDs that are out-of-bounds
rather than failing the entire ITS save ioctl (Fuad Tabba)
- Close race between VM teardown and invalidations of nested MMUs
when handling MMU operations that are allowed to block
(Lorenzo Stoakes)
- Various fixes for the handling of the host's untrusted SVE
configuration in pKVM (Fuad Tabba)
- Make sure that empty SMCCC ranges based at 0 are rejected by the
kvm_smccc_set_filter() (Karl Mehltretter)
- Revoke the host mapping for pKVM's private stack pages, along
with a new sanity check that all mappings in the hyp's private
VA range have been correctly marked as hyp-owned (Fuad Tabba)
- Lifetime fixes for the array of shadow stage-2 MMUs, ensuring that
concurrent vCPU initialization cannot relocate in-use MMUs. Defer
the freeing of shadow stage-2 MMUs to the point that no other users
(e.g. MMU notifier) could reference them (Marc Zyngier)
- Drop useless WARN when rejecting an unsupported ioctl for pKVM
(Fuad Tabba)
- Fix the steal_time selftest to install correctly-sized mappings for
non-4K hosts (Sebastian Ott)
- Correct mapping of fine-grained trap for GCSPOPX instruction
(Mark Brown)
- Fix KVM_BUG_ON() due to missing handling of DBGBXVR<n> from 32-bit
guests (Karl Mehltretter)
RISC-V:
- Synchronize hrtimer during VCPU teardown.
- Fix the conversion between vsip and hvip values.
- Serialize IMSIC attributes with vCPU migration.
- Release unused page after MMU invalidation.
- Propagate interrupted G-stage faults to KVM user-space as EINTR.
- Fix nested acceleration hfence entry update order.
- Fix sdata leak and stale snapshot_addr in snapshot_set_shmem.
- Preserve firmware counter value across PMU counter stop/start.
- Report PMU snapshot write failure to the guest.
- Fix perf-backed counter accounting across PMU stop and read.
- Correctly propagate error of a hart status SBI call.
s390:
- Ensure that accesses through kvm_arch_set_irq_inatomic mark as dirty
the pages that contain indicator and summary bits.
- Fix compile warning for kvm_s390_update_cmma_dirty().
- Fix incorrect propagation of ENOENT from _gaccess_shadow_fault() to
userspace.
- Move s390_kvm_mmu_commit_memory_region() into
s390_kvm_mmu_prepare_memory_region() so that it can fail instead of WARN.
- Add missing srcu in kvm_s390_set_irq_state().
- Fix potential races in storage functions.
- Fix race in _destroy_pages_crste().
- Fix issues in the handling of KVM interrupt and page resources, when a
queue that is assigned to a mediated device (mdev) is removed from the
host's AP configuration.
- Fix loop condition in uv_find_secrets.
- Prevent potential out-of-bounds read.
x86:
- Fix a brown paper bag bug where KVM would incorrectly treat Intel PMU MSRs
as valid on AMD.
- Fix a regression in the hardware disable selftest where it checked the wrong
macro when detecting glibc support (breaks at least musl).
- Never clear KVM_REQ_VM_DEAD so that dead VMs stay dead, which is especially
important for KVM_BUG_ON() flows, which often guard more dangerous bugs.
- Re-pend GET_NESTED_STATE_PAGES if getting the pages fails, to fix a bug
where KVM would let userspace run a broken setup with stale vmcs12 pages.
- Fix a class of bugs where KVM would fail to fill kvm_run exit fields if
getting nested pages failed.
- Treat reserved entries in the memory attributes xarray as "no attributes",
to fix false positives when checking for mixed attributes.
- Fix memcg accounting for the memory attributes xarray (the xarray library
subtly requires the xarray to be configured for accounting upfront; the gfp
flags taken at runtime are used only rarely).
- Don't pre-reserve xarray entries when storing empty attributes, as storing
NULL must not require memory allocation (KVM and other subsystems heavily
rely on this behavior).
- Fix a memory leak and a cache maintenance issue related to doing intra-host
migration on an SEV guest.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull kvm fixes from Paolo Bonzini:
"Arm:
- Invalidate the ITS translation cache when the guest changes the
base address of the ITS tables (Fuad Tabba)
- Skip saving ITS devices with device IDs that are out-of-bounds
rather than failing the entire ITS save ioctl (Fuad Tabba)
- Close race between VM teardown and invalidations of nested MMUs
when handling MMU operations that are allowed to block (Lorenzo
Stoakes)
- Various fixes for the handling of the host's untrusted SVE
configuration in pKVM (Fuad Tabba)
- Make sure that empty SMCCC ranges based at 0 are rejected by the
kvm_smccc_set_filter() (Karl Mehltretter)
- Revoke the host mapping for pKVM's private stack pages, along with
a new sanity check that all mappings in the hyp's private VA range
have been correctly marked as hyp-owned (Fuad Tabba)
- Lifetime fixes for the array of shadow stage-2 MMUs, ensuring that
concurrent vCPU initialization cannot relocate in-use MMUs. Defer
the freeing of shadow stage-2 MMUs to the point that no other users
(e.g. MMU notifier) could reference them (Marc Zyngier)
- Drop useless WARN when rejecting an unsupported ioctl for pKVM
(Fuad Tabba)
- Fix the steal_time selftest to install correctly-sized mappings for
non-4K hosts (Sebastian Ott)
- Correct mapping of fine-grained trap for GCSPOPX instruction (Mark
Brown)
- Fix KVM_BUG_ON() due to missing handling of DBGBXVR<n> from 32-bit
guests (Karl Mehltretter)
RISC-V:
- Synchronize hrtimer during VCPU teardown
- Fix the conversion between vsip and hvip values
- Serialize IMSIC attributes with vCPU migration
- Release unused page after MMU invalidation
- Propagate interrupted G-stage faults to KVM user-space as EINTR
- Fix nested acceleration hfence entry update order
- Fix sdata leak and stale snapshot_addr in snapshot_set_shmem
- Preserve firmware counter value across PMU counter stop/start
- Report PMU snapshot write failure to the guest
- Fix perf-backed counter accounting across PMU stop and read
- Correctly propagate error of a hart status SBI call
s390:
- Ensure that accesses through kvm_arch_set_irq_inatomic mark as
dirty the pages that contain indicator and summary bits
- Fix compile warning for kvm_s390_update_cmma_dirty()
- Fix incorrect propagation of ENOENT from _gaccess_shadow_fault() to
userspace
- Move s390_kvm_mmu_commit_memory_region() into
s390_kvm_mmu_prepare_memory_region() so that it can fail instead of
WARN
- Add missing srcu in kvm_s390_set_irq_state()
- Fix potential races in storage functions
- Fix race in _destroy_pages_crste()
- Fix issues in the handling of KVM interrupt and page resources,
when a queue that is assigned to a mediated device (mdev) is
removed from the host's AP configuration
- Fix loop condition in uv_find_secrets
- Prevent potential out-of-bounds read
x86:
- Fix a brown paper bag bug where KVM would incorrectly treat Intel
PMU MSRs as valid on AMD
- Fix a regression in the hardware disable selftest where it checked
the wrong macro when detecting glibc support (breaks at least musl)
- Never clear KVM_REQ_VM_DEAD so that dead VMs stay dead, which is
especially important for KVM_BUG_ON() flows, which often guard more
dangerous bugs
- Re-pend GET_NESTED_STATE_PAGES if getting the pages fails, to fix a
bug where KVM would let userspace run a broken setup with stale
vmcs12 pages
- Fix a class of bugs where KVM would fail to fill kvm_run exit
fields if getting nested pages failed
- Treat reserved entries in the memory attributes xarray as "no
attributes", to fix false positives when checking for mixed
attributes
- Fix memcg accounting for the memory attributes xarray (the xarray
library subtly requires the xarray to be configured for accounting
upfront; the gfp flags taken at runtime are used only rarely)
- Don't pre-reserve xarray entries when storing empty attributes, as
storing NULL must not require memory allocation (KVM and other
subsystems heavily rely on this behavior)
- Fix a memory leak and a cache maintenance issue related to doing
intra-host migration on an SEV guest"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (54 commits)
KVM: SEV: Do cache maintenance on the source VM during intra-host migration
KVM: SEV: Free have_run_cpus during VM destruction even if VM is no longer SEV
KVM: Don't pre-reserve xarray entries when storing empty/NULL attributes
KVM: Ensure memory attributes xarray nodes are accounted to the caller's memcg
KVM: Don't treat reserved xarray entries as having memory attributes
KVM: x86: Fill kvm_run exit fields in common get_nested_state_pages() error paths
KVM: x86: Re-pend GET_NESTED_STATE_PAGES if getting said pages fails
KVM: arm64: Fix AArch32 DBGBXVR<n> handling
KVM: arm64: Fix FGT mapping for HFGITR_EL2.nGCSEPP
KVM: selftests: fix steal_time for arm64 with host page size > 4K
KVM: arm64: Don't WARN on an unknown VM ioctl in protected mode
KVM: arm64: nv: Delay freeing of shadow S2 structures until VM destruction
KVM: arm64: nv: Fix life cycle of the nested_mmus array
KVM: arm64: Check every private mapping is hyp-owned at pKVM init
KVM: arm64: Move the private VA allocation cursor to __io_map_next
KVM: arm64: Match hyp text by physical address in fix_host_ownership()
KVM: arm64: Transfer the hyp stack pages out of the host stage-2
KVM: arm64: selftests: Test empty SMCCC filter range at base 0
KVM: arm64: Return -EINVAL for an empty SMCCC filter range at base 0
KVM: arm64: Derive GUEST_HAS_SVE from the SVE feature bit at EL2
...
|
||
|
Paolo Bonzini
|
c2f24f140c |
KVM fixes for 7.3-rcN
- Fix a brown paper bag bug where KVM would incorrectly treat Intel PMU MSRs
as valid on AMD.
- Fix a regression in the hardware disable selftest where it checked the wrong
macro when detecting glibc support (breaks at least musl).
- Never clear KVM_REQ_VM_DEAD so that dead VMs stay dead, which is especially
important for KVM_BUG_ON() flows, which often guard more dangerous bugs.
- Re-pend GET_NESTED_STATE_PAGES if getting the pages fails, to fix a bug
where KVM would let userspace run a broken setup with stale vmcs12 pages.
- Fix a class of bugs where KVM would fail to fill kvm_run exit fields if
getting nested pages failed.
- Treat reserved entries in the memory attributes xarray as "no attributes",
to fix false positives when checking for mixed attributes.
- Fix memcg accounting for the memory attributes xarray (the xarray library
subtly requires the xarray to be configured for accounting upfront; the gfp
flags taken at runtime are used only rarely).
- Don't pre-reserve xarray entries when storing empty attributes, as storing
NULL must not require memory allocation (KVM and other subsystems heavily
rely on this behavior).
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Merge tag 'kvm-x86-fixes-7.3-rc5' of https://github.com/kvm-x86/linux into HEAD
KVM fixes for 7.3-rcN
- Fix a brown paper bag bug where KVM would incorrectly treat Intel PMU MSRs
as valid on AMD.
- Fix a regression in the hardware disable selftest where it checked the wrong
macro when detecting glibc support (breaks at least musl).
- Never clear KVM_REQ_VM_DEAD so that dead VMs stay dead, which is especially
important for KVM_BUG_ON() flows, which often guard more dangerous bugs.
- Re-pend GET_NESTED_STATE_PAGES if getting the pages fails, to fix a bug
where KVM would let userspace run a broken setup with stale vmcs12 pages.
- Fix a class of bugs where KVM would fail to fill kvm_run exit fields if
getting nested pages failed.
- Treat reserved entries in the memory attributes xarray as "no attributes",
to fix false positives when checking for mixed attributes.
- Fix memcg accounting for the memory attributes xarray (the xarray library
subtly requires the xarray to be configured for accounting upfront; the gfp
flags taken at runtime are used only rarely).
- Don't pre-reserve xarray entries when storing empty attributes, as storing
NULL must not require memory allocation (KVM and other subsystems heavily
rely on this behavior).
|
||
|
Sean Christopherson
|
93de2a6a4b |
KVM: SEV: Do cache maintenance on the source VM during intra-host migration
Manually perform cache maintenance on the source VM during intra-host
migration to ensure no stale data is left in CPU caches after the VM is
destroyed. Because the source VM is "converted" to a non-SEV VM, KVM's
memory reclaim flows won't trigger cache maintenance, e.g. when all guest
memory is reclaimed in response to detaching from the mmu_notifier.
Note, relying on the destination VM to do cache maintenance isn't an option
as KVM doesn't require identical guest memory configurations, i.e. the
source VM may have access to memory that the destination VM does not.
Enforcing equivalent memory configurations is infeasible, as it would
require a *deep* comparison of memslots, e.g. to verify that not only are
the memslot identical, but what the memslots point at is also identical.
Fixes:
|
||
|
Sean Christopherson
|
12c1f6e03f |
KVM: SEV: Free have_run_cpus during VM destruction even if VM is no longer SEV
Unconditionally free SEV's "have run CPUs" cpumask in the VM destroy path,
i.e. even for what appear to be non-SEV VMs, as an SEV VM becomes a non-SEV
VM if its state is intra-host migrated. Alternatively, the mask could be
freed in sev_migrate_from() when "converting" the source VM, but that gets
annoying because ideally KVM would nullify the mask to guard against UAF,
and nullifying the mask would need be conditioned on CPUMASK_OFFSTACK=y.
Freeing the mask during sev_migrate_from() is also not robust against other
KVM bugs, though that's kind of a moot point since any such bugs would show
up even if sev->active is never set. I.e. KVM must get that side of things
correct. But, that's not a great reason to add more code just to make
things marginally less robust.
Fixes:
|
||
|
Linus Torvalds
|
6812ce4e43 |
drm fixes for 7.3-rc5
client: - fix restore of partially initialized client i915: - Fix incorrect RCU teardown order leading to endless loop - Fix DP MST TU and FEC handling for disconnected streams - Fix selective fetch disable, again - Fix export namespace for kunit helpers - Workaround eDP flicker on a specific laptop model xe: - CRI throttle reasons report - TLB invalidation at wedge - SVM eviction and VM close - Display corruption on LNL on Xen PV - W/a fix and addition amdgpu: - Display ref count fix - Userq fixes - VCN 4, 5 reset fixes - Fixes for various error paths - Stack frame size fixes for various combinations of compilers and configs amdkfd: - Possible UAF fix nouveau: - runtime suspend/resume fixes for newer firmware - rcu free the scheduler - fix VRAM pinning - fix double free - fix reference leaks - fix runtime PM leak - fix cursor list usage problems - fix HDMI config rejection without SCDC virtio: - fix a bunch of object/memory leaks in failure paths - add pixel blend mode property to cursor plane - revert prime buffers import - sync shmem backing on guest transfers imagination: - propogate map failures properly - fix page count in map interface - clamp freelist reconstruction requests ivpu: - use separate flag for job timeout bridge: - samsung-dsim: fix TE GPIO lifetime for host attach -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEEKbZHaGwW9KfbeusDHTzWXnEhr4FAmq29FYACgkQDHTzWXnE hr4pnw/+JhcAdts2saCNt/j7EtD6DqXJvyfo4BVyjYCSVP3YEZuZCrpBJh02UUUo sU8MgjmzwXHRxflTk8DLQMMKhN7cvFmzdREro5x7gJkCi2m/x3eanafQJS0iyvqN rl+K+rVeEmrOELN7auNFSl3kBtvR9yvbPZtBKNNe1IhCSq/iWKm5I4HLwP85diJZ OHOPuXXh+QFhtXsbwH3p1NsbWb/Kiovbevqitd/X/9CFZRMiiwuy5QFX8xOAW4CR 0id0njQPWVbLupuqZRGSDMAsqiVq/ClKIb8X0uMzU92y6l8oMsamPXxbs7Z6pfsT d8k9+zMP0LXXkwdS/sTI/9axJ5LZmd4mqEL+iAkoKkO2EGnDerzyklOCWtk38qvc qpjhQDW77AGLoQbISKZzI2Ce9B3RotdDghyd0Bt++GJegKQAAvevEQKNzWVvlMd3 aQcpI/EKf1PXJnX44LtDqNmoEmmEy4fKOICu52GzpPYOGaSQL25tuA7/KGNX35D8 hY7KiJRYaPcU0hAwAPLvQDHUvFBhDJD4BHGO01YOZ0fZzBARwE57Hwp3hxkHez64 CbcVZ5bzTREmZ3KHKI79OMhKUfCbq+E6YoJ1jxSDs902LWTrULx/iMCA+7NTZL1U f/9nIe2fkA0/D+++CraKd+HYkfdxvZZwuRuZtp5jWqRLxB4bdes= =oRa2 -----END PGP SIGNATURE----- Merge tag 'drm-fixes-2026-09-26' of https://gitlab.freedesktop.org/drm/kernel Pull drm fixes from Dave Airlie: "While most of this is AI inspired fixes for error handling paths, leaks and use after frees, there are some normal things. nouveau has probably the biggest changes with some fixes to stabilise runtime suspend/resume on 570 firmware which regressed after we moved from 535, there are some fixes to stackframe issues seen with amdgpu, and otherwise the usual bunch of i915/xe/amdgpu fixes, and some virtio-gpu fixes. Hopefully it will start to quiten down a bit from here. client: - fix restore of partially initialized client i915: - Fix incorrect RCU teardown order leading to endless loop - Fix DP MST TU and FEC handling for disconnected streams - Fix selective fetch disable, again - Fix export namespace for kunit helpers - Workaround eDP flicker on a specific laptop model xe: - CRI throttle reasons report - TLB invalidation at wedge - SVM eviction and VM close - Display corruption on LNL on Xen PV - W/a fix and addition amdgpu: - Display ref count fix - Userq fixes - VCN 4, 5 reset fixes - Fixes for various error paths - Stack frame size fixes for various combinations of compilers and configs amdkfd: - Possible UAF fix nouveau: - runtime suspend/resume fixes for newer firmware - rcu free the scheduler - fix VRAM pinning - fix double free - fix reference leaks - fix runtime PM leak - fix cursor list usage problems - fix HDMI config rejection without SCDC virtio: - fix a bunch of object/memory leaks in failure paths - add pixel blend mode property to cursor plane - revert prime buffers import - sync shmem backing on guest transfers imagination: - propogate map failures properly - fix page count in map interface - clamp freelist reconstruction requests ivpu: - use separate flag for job timeout bridge: - samsung-dsim: fix TE GPIO lifetime for host attach" * tag 'drm-fixes-2026-09-26' of https://gitlab.freedesktop.org/drm/kernel: (60 commits) drm/amd/display: Bump frame warning limit for all builds of dml drm/imagination: clamp freelist reconstruction requests drm/imagination: Fix page count for page table for map() interface drm/imagination: Propagate map failures correctly from pvr_mmu_map_sgl() drm/amd/display: Bump frame warning limit for clang builds of dml drm/amd/display: Relax DML frame limit with UBSAN drm/amdgpu: Fix runtime PM leak in amdgpu_debugfs_test_ib_show() drm/amdgpu: Fix last_update fence leak in amdgpu_vm_init() drm/amdgpu: Fix acpi device leak in amdgpu_acpi_enumerate_xcc() drm/amdgpu: Fix vmid_wait fence leak in amdgpu_ring_init() drm/amdkfd: fix use-after-free and multi-container gap in kfd_dev_mapping drm/amdgpu/vcn4.0.3: fix video_timeout unit mismatch in jpeg reset wait drm/amdgpu/vcn5.0.1: fix video_timeout unit mismatch in jpeg reset wait drm/amdgpu/userq: fix double jiffies conversion in hang detect timeout drm/amdgpu: move userq fence wait out of signalling section drm/amd/display: Fix dc stream excess put in dm_update_crtc_state() drm/xe: Add wa_14025941587 to xe2, xe3 and xe3p platforms drm/xe: harden adjust_idledly() against divide-by-zero and overflow drm/xe: Limit sg segment size to PAGE_SIZE on Xen PV drm/i915: fix incorrect RCU teardown order ... |
||
|
Linus Torvalds
|
75467f60a3 |
ipe/stable-7.3 PR 20260925
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Merge tag 'ipe-pr-20260925' of git://git.kernel.org/pub/scm/linux/kernel/git/wufan/ipe
Pull IPE fixes from Fan Wu:
"Two fixes for use-after-free issues found by recent LLM-assisted code
analysis.
- move successful policy load auditing under the new policy
directory's inode lock, preventing a concurrent policy deletion
from freeing the policy while it is still being audited
- protect the dm-verity root hash with RCU, preventing policy
evaluation from racing with root hash replacement during preresume"
* tag 'ipe-pr-20260925' of git://git.kernel.org/pub/scm/linux/kernel/git/wufan/ipe:
ipe: protect the dm-verity root hash with RCU
ipe: fix use-after-free when auditing a newly loaded policy
|
||
|
Dave Airlie
|
a9ed3aa9b8 |
A number of fixes:
- bridge:
- samsung-dsim: fix GPIO lifetime
- client: Null pointer dereference fix
- imagination: error handling fix, page handling fix
- nouveau: fix reference leaks, double-frees, out-of-bounds accesses,
use-after-frees, don't reject config without SCDC, a number of
workarounds
- virtio: fix memory leak, reference leaks, null pointer dereference,
add pixel blend mode, cache coherency fix
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Merge tag 'drm-misc-fixes-2026-09-24' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-fixes
A number of fixes:
- bridge:
- samsung-dsim: fix GPIO lifetime
- client: Null pointer dereference fix
- imagination: error handling fix, page handling fix
- nouveau: fix reference leaks, double-frees, out-of-bounds accesses,
use-after-frees, don't reject config without SCDC, a number of
workarounds
- virtio: fix memory leak, reference leaks, null pointer dereference,
add pixel blend mode, cache coherency fix
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maxime Ripard <self@mripard.dev>
Link: https://patch.msgid.link/arU22zzqUGDEco1y@houat
|
||
|
Linus Torvalds
|
049380360c |
SCSI fixes on 20260925
Mostly small driver fixes. The biggest fix is the one to the block zone handling which might trip for real or virtual hardware if the number of zones is > 2^32. Signed-off-by: James E.J. Bottomley <James.Bottomley@HansenPartnership.com> -----BEGIN PGP SIGNATURE----- iLgEABMIAGAWIQTnYEDbdso9F2cI+arnQslM7pishQUCarblBBsUgAAAAAAEAA5t YW51MiwyLjUrMS4xMiwyLDImHGphbWVzLmJvdHRvbWxleUBoYW5zZW5wYXJ0bmVy c2hpcC5jb20ACgkQ50LJTO6YrIXG4wEA0mYHxKLKHGzKMTZhLIQc9LqJ+oAFQfwk sUfhX5kqt+QA+QGx/jrg6DKgC6LLeti8xRD+hkeSCwSPCt98Tg2/ba/O =pQUi -----END PGP SIGNATURE----- Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi Pull SCSI fixes from James Bottomley: "Mostly small driver fixes. The biggest fix is the one to the block zone handling which might trip for real or virtual hardware if the number of zones is > 2^32" * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: scsi: megaraid_sas: Protect megasas_get_ctrl_info() in megasas_resume() scsi: sd_zbc: Reject disks with too many zones scsi: block: Fix zones_cond out-of-bounds write on zone report scsi: leapraid: Avoid -Wformat-security warning scsi: devinfo: Add BLIST_SKIP_IO_HINTS for EMC Symmetrix scsi: libiscsi_tcp: Check the data direction of a Data-In PDU scsi: ufs: pltfrm: Add quirk for R-Car S4 lacking lanes-per-direction scsi: ufs: core: Keep internal commands dispatchable during error handling |
||
|
Fan Wu
|
2776e9c285 |
ipe: protect the dm-verity root hash with RCU
ipe_bdev_setintegrity() frees the old root hash when dm-verity publishes
a new one on ->preresume, while policy evaluation can still be
dereferencing it.
Protect the root hash with RCU. The evaluation path already runs under
rcu_read_lock().
Fixes:
|
||
|
Fan Wu
|
9814077275 |
ipe: fix use-after-free when auditing a newly loaded policy
new_policy() audits the policy after ipe_new_policyfs_node() publishes it
and drops the new directory's inode lock. A concurrent delete can free
the policy while ipe_audit_policy_load() is still using it.
Audit the successful load under that lock.
Fixes:
|
||
|
Linus Torvalds
|
f14572c203 |
smb client fixes for v7.3-rc5
- Fix leaked server handles and dropped errors in the SMB2 compound
create path: a parsing error reported as success, an earlier CREATE
left open when a later command fails, the cached directory open
losing the FID needed for cleanup, and SMB2_open() not closing the
handle after a create-context parse failure
- Fix out-of-bounds reads when parsing create contexts from a
malicious server: bound each context by its Next field, parse the
lease and QFid contexts from their declared offsets and validate
the POSIX create context length
- Fix a double credit decrement, and its warning, when a compound
send fails and triggers a reconnect; found by syzbot
- Fix a dentry and server handle leak in cifs_atomic_open() when an
O_CREAT open resolves to a symlink or other non-regular inode
- Use GFP_KERNEL in the DFS get_targets() path
- Minor update to the POSIX extension specification references
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Merge tag 'cifs-fixes-7.3-rc5' of https://git.manguebit.org/linux
Pull smb client fixes from Paulo Alcantara:
- Fix leaked server handles and dropped errors in the SMB2 compound
create path: a parsing error reported as success, an earlier CREATE
left open when a later command fails, the cached directory open
losing the FID needed for cleanup, and SMB2_open() not closing the
handle after a create-context parse failure
- Fix out-of-bounds reads when parsing create contexts from a
malicious server: bound each context by its Next field, parse the
lease and QFid contexts from their declared offsets and validate
the POSIX create context length
- Fix a double credit decrement, and its warning, when a compound
send fails and triggers a reconnect; found by syzbot
- Fix a dentry and server handle leak in cifs_atomic_open() when an
O_CREAT open resolves to a symlink or other non-regular inode
- Use GFP_KERNEL in the DFS get_targets() path
- Minor update to the POSIX extension specification references
* tag 'cifs-fixes-7.3-rc5' of https://git.manguebit.org/linux:
smb: client: use finish_no_open() for non-regular inodes
smb: client: use GFP_KERNEL in get_targets()
smb: client: update POSIX extension specification references
smb: client: preserve create-context parsing errors
smb: client: close completed creates on compound wait errors
smb: client: clean up failed cached directory opens
smb: client: close handle after create-context parsing failure
smb: client: validate POSIX create context length
smb: client: fix create context out-of-bounds reads
smb: client: delete compound mids on send failure before unlock
|
||
|
Linus Torvalds
|
aa98230e41 |
vfs-7.3-rc5.fixes
Please consider pulling these changes from the signed vfs-7.3-rc5.fixes tag.
Thanks!
Christian
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Merge tag 'vfs-7.3-rc5.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull vfs fixes from Christian Brauner:
- Revert "put_mnt_ns(): leave mounts connected". This allows the
creation of reference count cycles in a very trivial way. We can't
bring this in until we have fixed the underlying cause
- vfs: Don't create the private nullfs instance for kthreads under
namespace_sem to avoid false lockdeps complaints
- binfmt_misc:
- Copy the name into a stack buffer and look up the copy in
bpf_binprm_select_interp()
- bpf_binprm_set_interp() and bpf_binprm_set_interp_arg(): Check
the private copy instead so the string that gets staged is the
kstring that was checked
- netfs:
- Make netfs_read_gaps() use separate sink folios rather than one
reused sink folio to discard unwanted data so that cifs checksum
checking sees all the data that was fetched
- Trim reads down to i_size so afs symlinks read correctly from the
cache
- Wrap the direct mempool ->alloc() calls the GFP_KERNEL paths make
in alloc_hooks() via a new mempool_alloc_noreserve() helper
- iov_iter: Use iov_iter_alignment() for the start and length check
added to iov_iter_extract_bvecs() this cycle. It used iter_iov_addr()
and iter_iov_len() which are only valid for ITER_UBUF and ITER_IOVEC
iterators
- super: Make iterate_supers_type() deletion-safe
- inode: Stop evict_inodes() from rescanning the same inodes
- writeback: Bound the cleanup_offline_cgwb() rescans
- ntfs3: Use d_instantiate_new() in ntfs_create_inode()
- ovl: Fix a use-after-free in the ovl_do_mkdir() debug print
- dcache: Unpoison the inline name buffer in __d_alloc() for KMSAN
- autofs: Fix a pipe file reference leak in autofs_kill_sb()
- bpf: Drop the path_unlink and path_rmdir hooks from the list of hooks
for which the verifier rewrites bpf_{set,remove}_dentry_xattr() to
the _locked variants
- squashfs: Range check the xz dictionary size before shifting by it
- selftests: Add the missing eventfd, open_tree_ns, openat2 and xattr
filesystems selftests to TARGETS and drop the stale openat2 entry
left behind when those tests moved
* tag 'vfs-7.3-rc5.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
netfs: Fix missing alloc tagging of direct mempool allocations
bpf: fs/xattr: don't assume the inode is locked in path_unlink/path_rmdir
autofs: fix sbi->pipe file reference leak in autofs_kill_sb()
dcache: unpoison the inline name buffer in __d_alloc()
ovl: fix UAF in ovl_do_mkdir() debug print
super: make iterate_supers_type() deletion-safe
Revert "put_mnt_ns(): leave mounts connected"
Revert "selftests/filesystems: add mntns cleanup test"
binfmt_misc: fix racy checks in bpf set_interp kfuncs
binfmt_misc: fix OOB read in bpf_binprm_select_interp()
fs: don't create the private nullfs mount under namespace_sem
writeback: bound cleanup_offline_cgwb() rescans by rotating scanned inodes
fs: avoid repeated scans in evict_inodes()
netfs, afs: Fix symlink reading
netfs: Fix netfs_read_gaps() to use separate sink folios
squashfs: Add dictionary size range check to prevent shift-out-of-bounds
fs/ntfs3: use d_instantiate_new() in ntfs_create_inode() and murder syzbot's "WARNING in do_new_mount" saga
selftests/filesystems: fix missing and stale TARGETS entries
block: Fix start and length check added to iov_iter_extract_bvecs()
|
||
|
Linus Torvalds
|
a2ff1b626e |
\n
-----BEGIN PGP SIGNATURE----- iQEzBAABCAAdFiEEq1nRK9aeMoq1VSgcnJ2qBz9kQNkFAmq2Qs8ACgkQnJ2qBz9k QNnBEAf5AXGzuQPeOHZQ0+kXhe0y+2Epj1oqSH0YIDI2263nav9go3wjz4uyL/J2 0bbALzEX0Em0n0OfYOSKPdOx22AFZdZVKrFiACXeaUQmK1R0zwLOJPxDvpyWhHQS 8Rn+HxMVxdqbobIClHQvGsU3EkBZR+d2ZSDfG4A3Gqc4O2vkgB3CvDvw5d7OdDNB 5Et2tydekYTSUH2JZvJxlzwvbfsvvgSEEVupYILYZvMOv01EMxOTLCCv/8KWOFNE Xjen/maE+1ks+nGmTgDQC2bOALB3nCQhoMlL31nsYzP89Dg/C0IGCbVX25yUvlzX 0FXMPKVVEEvpZVhTc5Hy7HYhDatC5Q== =IeuV -----END PGP SIGNATURE----- Merge tag 'fs_for_v7.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs Pull isofs fix from Jan Kara: "A fix for reading tightly packed isofs directories" * tag 'fs_for_v7.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs: isofs: Fix handling of directories with tight blocks |
||
|
Linus Torvalds
|
b9dbb658e2 |
Thermal control fix for 7.3-rc5
Fix a step-wise thermal governor issue that causes thermal mitigation to contiune forever after the temperature has dropped below the trip point threshold in some cases (Manaf Meethalavalappu Pallikunhi). -----BEGIN PGP SIGNATURE----- iQFGBAABCAAwFiEEcM8Aw/RY0dgsiRUR7l+9nS/U47UFAmq2l84SHHJqd0Byand5 c29ja2kubmV0AAoJEO5fvZ0v1OO1NAAH/2pYr1erbmTfHAkmka5b+4/nJsAONclz izc6GPbLdM7PgR7LnAxAlJzQCz9wIljxtOHYKviZmlrnXbVwQxLZLI/GLpF5LN5Z au79wSH/q1UHsBbLUIUKp887WVEvxeS/jC6//YFUkjY+gVCiRpvKUHkLr8WzQYue DD1cQNR+nLquYao04+Src02VfbjKhRouMoHNhSkJXOm4IbkPMA75ENBw6LGfWshf tm1uSXghzog0kNNU3rqjLOdMdIpp1Ea/l1wCfg8mkwd+AVZS2G3eItQbrLQmXPWg yjKWpmTPggletPB4bz7LjMwkHwI+xzLIWSbr0j5zRqEopedSHhc0MXk= =VygM -----END PGP SIGNATURE----- Merge tag 'thermal-7.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull thermal control fix from Rafael Wysocki: "Fix a step-wise thermal governor issue that causes thermal mitigation to contiune forever after the temperature has dropped below the trip point threshold in some cases (Manaf Meethalavalappu Pallikunhi)" * tag 'thermal-7.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: thermal: gov_step_wise: Fix stale mitigation vote with non-zero lower bounds |
||
|
Linus Torvalds
|
4ba51ef66a |
Power management fix for 7.3-rc5
Address a hibernation regression introduced during the 7.2 development cycle that causes the image memory preallocation to deadlock if it depends on frozen kernel threads (Florian Schmaus). -----BEGIN PGP SIGNATURE----- iQFGBAABCAAwFiEEcM8Aw/RY0dgsiRUR7l+9nS/U47UFAmq2mDESHHJqd0Byand5 c29ja2kubmV0AAoJEO5fvZ0v1OO1wFAH/2e9iz++Qjb9SODpGX/2Fz07qb4SBRCP Zf0r74G7qfoPczcLuiKu8irb1FSvlwr1nlcygWcF0gYLg9TJCaaQ7JIxHL/9ePV0 lbINk+4ozu5S6AbMh7O5wpv3n+nwBtg1wZZP3kSY4hxQ5zymACuEzwBTGT9vfQVA GpkrasgQVTOyt1gWAO8Ak3WX3z1EaBqzl8DsCm/75PVq2Wy1I801JagtYT6KArf6 kqH19SdiihrTl+2k/k2Vvc14H9XYfXab77ShWv1JgKF7X1QqaO8QWVFQulj0bpgc LLSlpiQXqBYfz469bPGyS2U6tyFioynqoiWQfdxC6zBGcHv1Jl3LdDg= =mfRN -----END PGP SIGNATURE----- Merge tag 'pm-7.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull power management fix from Rafael Wysocki: "Address a hibernation regression introduced during the 7.2 development cycle that causes the image memory preallocation to deadlock if it depends on frozen kernel threads (Florian Schmaus)" * tag 'pm-7.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: PM: hibernate: Freeze kernel threads after image preallocation |
||
|
Linus Torvalds
|
547463efb9 |
s390 fixes for 7.3-rc5
- Fix several bugs in PCI error recovery SCLP reporting: don't report success on skipped recovery, report errors when no pdev is associated, add missing device lock, and fix struct pci_dev reference leak in zpci_report_status() - Fix several bugs in CIO code: fix use of invalid SCHIB data, guard PMCW field accesses, check device number valid bit in PMWC before accessing other fields, and fix NULL pointer dereference in ccw_device_get_util_str() - Fix virtual vs physical address confusion in channel measurement facility code on kernels with CONFIG_RANDOMIZE_IDENTITY_BASE=y - Fix couple of bugs in s390dbf: fix copy of failed static debug areas, skip view registration on failure, and reject NULL pointer in debug_dump() - Fix sriov_numvfs attribute name in zPCI documentation - Fix typos in comments -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEECMNfWEw3SLnmiLkZIg7DeRspbsIFAmq2V1AACgkQIg7DeRsp bsJ7zg/7BrnPs0WyKv9NZvVUudYbz3nUIAleJo6HcDK2SUDr+EX3W4U7OjsXL6Fv H76hx5AqF6ddtUOJ2uevCAb3PKm0eA7vmK9YiERAclrBA+tWGW0xBwCqqyc84k38 CPxOBr87Ae1jIIcfDxfBWujtKTFi/4BpSvKvKgg3mnd2egny4UnHnABx5ZcClEee p6aVjCKycQFHwNLMoJA1BxvGSpcXdiKXbm6VRJ4gCaBnVuzkLUv1ZMp/Pi1fWVbV E1AEztZ/03Tfry51q7wQLv6wD5lR3Z/Py2vZ4YIbelQwVMAMI+rFtgd5oFfo9qkF gcFJ+faE9m0E/nsoaaVCaa2Ja4+hV/vZ5ik0bq1ljEqEvInaa2XTuxNAljId351Y JrLvCdaip0FkMNMqEym0iydMAlpc491GAhzNrT3yvq6t03VVpxprPPA6VIwHg+zk UBMP+QdxtnaV8AAUzDD9E255d88N4DECBICUgf1XjFm/I7xLJFWyUvbzcqNn9VnY EGVBOeQmoByhCL9lN0+nzEM1sgT+hQB/C3WmLqiuLxrxjnc8dVr8rVHcPXFgARPw Ht3W9jxdTdl4VBwckOWmbvG4L6spXFLdEzI51cP46L1RKWhFjLl/6RoY8fUHf4Vz YnHutQevSoPI2D6G4v8K1FBz9wclxCojBPbXCmevfbL9B4ChPoQ= =r3uP -----END PGP SIGNATURE----- Merge tag 's390-7.3-4' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux Pull s390 fixes from Heiko Carstens: - Fix several bugs in PCI error recovery SCLP reporting: don't report success on skipped recovery, report errors when no pdev is associated, add missing device lock, and fix struct pci_dev reference leak in zpci_report_status() - Fix several bugs in CIO code: fix use of invalid SCHIB data, guard PMCW field accesses, check device number valid bit in PMWC before accessing other fields, and fix NULL pointer dereference in ccw_device_get_util_str() - Fix virtual vs physical address confusion in channel measurement facility code on kernels with CONFIG_RANDOMIZE_IDENTITY_BASE=y - Fix couple of bugs in s390dbf: fix copy of failed static debug areas, skip view registration on failure, and reject NULL pointer in debug_dump() - Fix sriov_numvfs attribute name in zPCI documentation - Fix typos in comments * tag 's390-7.3-4' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: s390/cio: Fix NULL pointer dereference in ccw_device_get_util_str() s390/debug: Fix NULL pointer dereference in debug_info_copy() s390/debug: Do not register views for failed static debug areas s390/debug: Reject NULL debug info in debug_dump() s390/cmf: Fix virtual vs physical address confusion s390/pci: Don't report recovery success on skipped recovery s390/pci: Report SCLP status on error events when no pdev is associated s390/pci: Fix missing device lock in zpci_report_status() s390/pci: Fix leak of struct pci_dev reference in zpci_report_status() s390/cio: Guard PMCW field accesses with dnv check s390/cio: Check pmcw.dnv before pmcw.ena in I/O entry points s390/cio: Fix cio_update_schib() to not cache invalid schib s390/pci/docs: Fix sriov_numvfs attribute name s390: Fix typos in comments |
||
|
Linus Torvalds
|
80e466f0c8 |
gpio fixes for v7.4-rc5
- fix a regression introduced by moving GPIO hog handling into GPIOLIB core where of_node_name was used if line name property was missing on DT systems - fix kernel stack leak to user-space in error path in GPIO character device code - fix runtime PM leaks in gpio-xilinx and gpio-arizona - fix several register programming bugs in gpio-tps65219 - fix interrupt storm on resume in gpio-mvebu -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEkeUTLeW1Rh17omX8BZ0uy/82hMMFAmq2KYwACgkQBZ0uy/82 hMOkFhAAjIaH6nUhhUBykRyIbBVAbxYFWrps/qLw9Wlg1wDteUwwMWpdHWivsi2M Ch0zCR1/op812cu47dTsnNteHuK9oGoL0IHXGweylNJVU7IXTiUx6sUu+kLlT2wK /yIH6Zk78rULodV/80S9aNbFNNHOu7Pu/AEAPPJjGIKK6UVxT7o2o04jG1xORVbr X11hLjzKe1RpVKo3fhBFglzW1T4YVpulorsgkMNabTG4hbf5pArtkaQGPHVvH3Hk LNpTFJ3Jmoczo4UgsKAaUso2LoC19hoIUMRBVoOwscTLlPoIE6MTH0bLj+U9npId TUhGpVYIvfy4B6V2+FU+9YnWTkDE7efmnmm0l+GnNp7FmDTxTO0aVJoouPNEeUgu Zu1CJxaKYTWuTm5mdk2Tgw5G+3YtzcGS6iW3dCFvshyYSdHHkvPQ6ys2blJJyeEd 2MRoZQZdSzMDmCfw5Y+RxF1jp1BRjIID2NH1p/cxUokFvMDgFJU+MFxdOo6ySnC/ +1EEeA7Gak4StJUDa2Y4+uI0PMokWAEXs3ixlQUmgIpgGVtBIzI17psj4RDumdGD 6HIG/31Pedg3LtUkkzC8P6vfdREzzquWUPBr9F7dApur4/MMJZyeu3pUwFtx0AKs +T5qgUwwsoKxLmg2EAdg5pThzLVgqgtrSYuw8esqfG8tNRzoRgc= =Mp0f -----END PGP SIGNATURE----- Merge tag 'gpio-fixes-for-v7.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux Pull gpio fixes from Bartosz Golaszewski: - fix a regression introduced by moving GPIO hog handling into GPIOLIB core where of_node_name was used if line name property was missing on DT systems - fix kernel stack leak to user-space in error path in GPIO character device code - fix runtime PM leaks in gpio-xilinx and gpio-arizona - fix several register programming bugs in gpio-tps65219 - fix interrupt storm on resume in gpio-mvebu * tag 'gpio-fixes-for-v7.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux: gpio: tps65219: Fix TPS65214 GPIO direction programming gpio: tps65219: Use the variant-specific direction callback gpio: tps65219: Fix GPIO input value reads gpio: zynq: fix runtime PM leak on request error path gpio: cdev: fix kernel stack leak to user-space in error path gpiolib: use of_node_name if line-name is missing gpio: mvebu: keep resume masks within the irqchip cache gpio: arizona: Fix runtime PM leak in arizona_gpio_direction_out() |
||
|
Hao Ge
|
b78b728e21
|
netfs: Fix missing alloc tagging of direct mempool allocations
Commit |
||
|
Andrea Parri
|
35d442ed1f
|
bpf: fs/xattr: don't assume the inode is locked in path_unlink/path_rmdir
bpf_lsm_has_d_inode_locked() makes the verifier rewrite
bpf_[set|remove]_dentry_xattr() to the _locked variants, which assume
that the caller already holds the inode's i_rwsem. The path_unlink and
path_rmdir hooks are listed, but security_path_unlink() and
security_path_rmdir() run before vfs_unlink()/vfs_rmdir() take the
victim inode's i_rwsem, so a sleepable BPF LSM program attached to
either hook mutates the victim's xattrs without the lock held.
Drop the two path hooks from d_inode_locked_hooks so that the verifier
keeps the locking bpf_[set|remove]_dentry_xattr() variants, which take
the lock themselves.
Fixes:
|
||
|
Hui Peng
|
aa5e44b29f
|
autofs: fix sbi->pipe file reference leak in autofs_kill_sb()
When autofs_fill_super() fails before clearing AUTOFS_SBI_CATATONIC (for
example, when find_get_pid() fails on an invalid pgrp mount option, or
when an fs_context is closed before mounting), deactivate_locked_super()
invokes autofs_kill_sb() -> autofs_catatonic_mode(sbi).
Because AUTOFS_SBI_CATATONIC is still set in sbi->flags,
autofs_catatonic_mode() returns early without calling fput(sbi->pipe),
permanently leaking the pipe struct file reference.
Explicitly release sbi->pipe in autofs_kill_sb() if it is still non-NULL
after autofs_catatonic_mode().
Fixes:
|
||
|
Andrea Parri
|
5bfa9f1a9d |
kprobes: Fix permanent hang when flushing the kprobe optimizer
Writing 0 to /proc/sys/debug/kprobes-optimization while a kprobe is
jump-optimized never returns. The writer sleeps in D state forever with
kprobe_sysctl_mutex held, so any later read or write of that sysctl
hangs as well. For example, with vfs_read+9 as an optimizable address
in this build:
# cd /sys/kernel/tracing
# echo 'p:myprobe vfs_read+9' >> kprobe_events
# echo 1 > events/kprobes/myprobe/enable
# # wait until /sys/kernel/debug/kprobes/list shows [OPTIMIZED]
# echo 0 > /proc/sys/debug/kprobes-optimization
INFO: task sh:246 blocked for more than 10 seconds.
Call Trace:
<TASK>
__schedule+0x1176/0x4f70
schedule+0xdc/0x2c0
schedule_timeout+0x17b/0x260
wait_for_completion+0x173/0x3c0
wait_for_kprobe_optimizer_locked+0xbc/0x130
proc_kprobes_optimization_handler+0x156/0x1b0
proc_sys_call_handler+0x324/0x490
vfs_write+0x52d/0xfe0
ksys_write+0xff/0x200
do_syscall_64+0x106/0x630
entry_SYSCALL_64_after_hwframe+0x77/0x7f
</TASK>
...
INFO: task cat:265 is blocked on a mutex likely owned by task sh:246.
wait_for_kprobe_optimizer_locked() reinitializes optimizer_completion,
asks the optimizer thread to flush and sleeps in wait_for_completion().
The thread drains the (un)optimizing lists, but calls complete() only
if completion_done() is true, i.e. if the completion is already done,
which never happens while someone waits. disarm_all_kprobes() and
kprobe_trace_self_tests_init() wait the same way.
Calling complete() unconditionally would not be enough: the waiter
drops kprobe_mutex while it sleeps, and nothing else serializes the
sysctl handler against the debugfs "enabled" file. A second flusher
that still finds the lists non-empty, e.g. because a disabled probe is
queued for unoptimizing, reinitializes the completion under the first:
sysctl write debugfs "enabled" write
unoptimize_all_kprobes()
wait_for_kprobe_optimizer_locked()
init_completion(c)
mutex_unlock(&kprobe_mutex)
wait_for_completion(c)
disarm_all_kprobes()
wait_for_kprobe_optimizer_locked()
init_completion(c)
// c->wait is reset, the first
// waiter is off the queue
mutex_unlock(&kprobe_mutex)
wait_for_completion(c)
kprobe_optimizer()
complete(c)
// wakes the debugfs writer only
where c is &optimizer_completion. Lining up the two writes during an
optimizer pass loses the sysctl writer this way.
Replace the completion with a counter of optimizer passes, bumped at the
end of each pass and signalled with wake_up_var_locked(), both under
kprobe_mutex. A flusher samples the count and waits with
wait_var_event_mutex(), which drops kprobe_mutex only while sleeping, so
a new count means a whole pass ran in the meantime. Nothing is
reinitialized, so several flushers can sleep in the wait at once.
Link: https://lore.kernel.org/all/20260924092142.199198-1-parri.andrea@gmail.com/
Fixes:
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||
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Drif Abdelmalek Mohamed Said
|
76d8e69724
|
dcache: unpoison the inline name buffer in __d_alloc()
syzbot reported:
BUG: KMSAN: uninit-value in dentry_string_cmp fs/dcache.c:291 [inline]
BUG: KMSAN: uninit-value in dentry_cmp fs/dcache.c:322 [inline]
BUG: KMSAN: uninit-value in __d_lookup_rcu+0x37d/0x5e0 fs/dcache.c:2522
dentry_string_cmp fs/dcache.c:291 [inline]
dentry_cmp fs/dcache.c:322 [inline]
__d_lookup_rcu+0x37d/0x5e0 fs/dcache.c:2522
lookup_fast+0x194/0xa40 fs/namei.c:1854
lookup_fast_for_open fs/namei.c:4545 [inline]
open_last_lookups fs/namei.c:4579 [inline]
path_openat+0x9ef/0x6540 fs/namei.c:4856
do_file_open+0x2aa/0x680 fs/namei.c:4888
do_sys_openat2+0x17c/0x390 fs/open.c:1395
do_sys_open fs/open.c:1401 [inline]
__do_sys_openat fs/open.c:1417 [inline]
__se_sys_openat fs/open.c:1412 [inline]
__x64_sys_openat+0x240/0x300 fs/open.c:1412
x64_sys_call+0x2445/0x3ea0 arch/x86/include/generated/asm/syscalls_64.h:258
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x15d/0x3c0 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
Uninit was stored to memory at:
copy_name fs/dcache.c:3031 [inline]
__d_move+0xd29/0x21f0 fs/dcache.c:3099
d_move+0x71/0xf0 fs/dcache.c:3147
vfs_rename+0x2619/0x2770 fs/namei.c:6085
filename_renameat2+0xa59/0x1230 fs/namei.c:6188
__do_sys_rename fs/namei.c:6232 [inline]
__se_sys_rename+0xc5/0x5c0 fs/namei.c:6228
__x64_sys_rename+0x78/0xb0 fs/namei.c:6228
x64_sys_call+0x329/0x3ea0 arch/x86/include/generated/asm/syscalls_64.h:83
do_syscall_x64 arch/x86/entry/syscall_64.c:63
do_syscall_64+0x15d/0x3c0 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
Uninit was created at:
slab_post_alloc_hook mm/slub.c:4617 [inline]
slab_alloc_node mm/slub.c:4939 [inline]
kmem_cache_alloc_lru_noprof+0x376/0x1230 mm/s
__d_alloc+0x52/0x9f0 fs/dcache.c:1902
d_alloc+0x57/0x300 fs/dcache.c:1981
lookup_one_qstr_excl+0x19d/0x7a0 fs/namei.c:1806
__start_renaming+0x341/0x850 fs/namei.c:3888
filename_renameat2+0x625/0x1230 fs/namei.c:6163
__do_sys_rename fs/namei.c:6232 [inline]
__se_sys_rename+0xc5/0x5c0 fs/namei.c:6228
__x64_sys_rename+0x78/0xb0 fs/namei.c:6228
x64_sys_call+0x329/0x3ea0 arch/x86/include/generated/asm/syscalls_64.h:83
do_syscall_x64 arch/x86/entry/syscall_64.c:63
do_syscall_64+0x15d/0x3c0 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
The race is between a concurrent open() and rename() of the same path.
__d_alloc() only stores the name itself and its terminating NUL, so the
rest of the inline buffer (d_shortname, DNAME_INLINE_LEN bytes) is left
uninitialized. copy_name(), called from rename(), copies that buffer as a
whole, so the uninitialized tail is propagated into the dentry that is
being moved. Meanwhile __d_lookup_rcu(), called from open(), is an
optimistic lockless lookup: it checks d_name.hash_len first and leaves the
seqcount retry to its caller, so it can end up comparing against a dentry
whose name a rename is rewriting in place, using a stale (longer) length.
The comparison then runs past the terminating NUL and reads bytes of the
uninitialized tail, which KMSAN reports.
The read is harmless by design: it stays inside the buffer, the name is
still NUL-terminated, and the result is thrown away by the seqcount retry.
It is not specific to KMSAN either - with CONFIG_DCACHE_WORD_ACCESS
enabled the very same bytes are read by read_word_at_a_time(), which is
__no_sanitize_or_inline and therefore invisible to KMSAN. KMSAN builds
only see the instrumented byte-at-a-time dentry_string_cmp() because
CONFIG_DCACHE_WORD_ACCESS is disabled when KMSAN is enabled on x86:
commit
|
||
|
Amir Goldstein
|
ae146bc1ab
|
ovl: fix UAF in ovl_do_mkdir() debug print
ovl_do_mkdir() prints the input dentry with %pd after vfs_mkdir(). Since commit |
||
|
Matthias Goergens
|
113dcdfadf |
MAINTAINERS: name the libata/linux for-next branch
The T: entry for LIBATA SUBSYSTEM (Serial and Parallel ATA drivers) names libata/linux without a branch. The repository's HEAD pointer points to branch master, which has no active development. Active development is on the for-next branch. Name the branch so the entry identifies where development happens. Documentation/process/submitting-patches.rst sends contributors to the T: entry to find the tree to prepare patches against, so a branch-less entry whose HEAD is already in mainline points them to the wrong branch. Reviewed-by: Damien Le Moal <dlemoal@kernel.org> Signed-off-by: Matthias Goergens <matthias.goergens@gmail.com> Link: https://lore.kernel.org/r/20260925052329.2683619-1-matthias.goergens@gmail.com Signed-off-by: Niklas Cassel <cassel@kernel.org> |
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|
Dave Airlie
|
0f50dab8b4 |
amd-drm-fixes-7.3-2026-09-24:
amdgpu: - Display ref count fix - Userq fixes - VCN 4, 5 reset fixes - Fixes for various error paths - Stack frame size fixes for various combinations of compilers and configs amdkfd: - Possible UAF fix -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQQgO5Idg2tXNTSZAr293/aFa7yZ2AUCarVdBwAKCRC93/aFa7yZ 2IiRAP9QnDZ0lLR36p0yPHlMVl2opdMfkqeLkdHd6BgDn/3/mwEA780cxI7gxbFH LS7QLSW9L68xjdAixoUWi/UYCIG4sAQ= =VbtV -----END PGP SIGNATURE----- Merge tag 'amd-drm-fixes-7.3-2026-09-24' of https://gitlab.freedesktop.org/drm/amdgpu/kernel into drm-fixes amd-drm-fixes-7.3-2026-09-24: amdgpu: - Display ref count fix - Userq fixes - VCN 4, 5 reset fixes - Fixes for various error paths - Stack frame size fixes for various combinations of compilers and configs amdkfd: - Possible UAF fix Signed-off-by: Dave Airlie <airlied@redhat.com> From: Alex Deucher <alexander.deucher@amd.com> Link: https://patch.msgid.link/20260924172938.634777-1-alexander.deucher@amd.com |
||
|
Dave Airlie
|
c5d1690ff1 |
Fixes in:
- CRI throttle reasons report (Sk) - TLB invalidation at wedge (Shuicheng) - SVM eviction and VM close (Brost) - Display corruption on LNL on Xen PV (Szymon) - W/a fix and addition (Tilak) -----BEGIN PGP SIGNATURE----- iQEzBAABCgAdFiEEbSBwaO7dZQkcLOKj+mJfZA7rE8oFAmq1KCQACgkQ+mJfZA7r E8pjZAgAoGb4wVoZ9Qm1qCWRXiUJWoD63X9/s0cYe9qDoStsfJ3oppKuuy6A2lZQ SvaTLExbRLtYJiPU0RWQcphiay5lnjQzkjIrGMt8cMA/9fVPgdXfL13PXeJuJ4yM uQzv9+eWuptjyHxNbCuW0pEnxWZ8yyR/lMbyX68+hdJl7TgSDWHEllTkv8+xuNPn APyIizk69bI3VPzBcl0GcoW3VOtabgUzZiWkuuehuVf+Bl2vwZElRScjLq5gNZ3x IzNOQPE1z6d0v2drK/bk7SzfEt41o/J9RqKnoBguhW66XFbRU3/sVn924yCpThHQ 74e9Wa2DP2pdJZ6htJcnrNRl9ZNi9A== =cXRT -----END PGP SIGNATURE----- Merge tag 'drm-xe-fixes-2026-09-24' of https://gitlab.freedesktop.org/drm/xe/kernel into drm-fixes Fixes in: - CRI throttle reasons report (Sk) - TLB invalidation at wedge (Shuicheng) - SVM eviction and VM close (Brost) - Display corruption on LNL on Xen PV (Szymon) - W/a fix and addition (Tilak) Signed-off-by: Dave Airlie <airlied@redhat.com> From: Rodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patch.msgid.link/arUoUf9LpsJpJouN@intel.com |
||
|
Linus Torvalds
|
165768bb70 |
firewire fixes for 7.3-rc5
Fix a race in the cdev layer that can cause a fw_iso_resource_auto object to transition back to a previous state. This can happen when a file descriptor is closed while the work item for the object is running. The race can leak several memory objects, including client object itself. This fix should be applied to 7.2 kernel or later. -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQQE66IEYNDXNBPeGKSsLtaWM8LwEwUCarWseAAKCRCsLtaWM8Lw E2x/AQCr6GAMO1G8/7mUgEj3X4CHCzkS/N3bVwb6TJ18/e5gxgEAuM9Ry+FU6IP4 0NCz6dbcn9dta3YGnlfgAQ9HtTMwnAg= =BLzx -----END PGP SIGNATURE----- Merge tag 'firewire-fixes-7.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394 Pull firewire fix from Takashi Sakamoto: "Fix a race in the cdev layer that can cause a fw_iso_resource_auto object to transition back to a previous state. This can happen when a file descriptor is closed while the work item for the object is running. The race can leak several memory objects, including client object itself" * tag 'firewire-fixes-7.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394: firewire: cdev: fix back-transition for iso_resource_auto client resource |
||
|
Dave Airlie
|
fd0ba310f9 |
Merge tag 'drm-intel-fixes-2026-09-24' of https://gitlab.freedesktop.org/drm/i915/kernel into drm-fixes
drm/i915 fixes for v7.3-rc5: - Fix incorrect RCU teardown order leading to endless loop - Fix DP MST TU and FEC handling for disconnected streams - Fix selective fetch disable, again - Fix export namespace for kunit helpers - Workaround eDP flicker on a specific laptop model Signed-off-by: Dave Airlie <airlied@redhat.com> From: Jani Nikula <jani.nikula@intel.com> Link: https://patch.msgid.link/9b8ff50ad5c3ff9ca120207b1e7aa95d5a16423f@intel.com |
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Linus Torvalds
|
ee9c669f9b |
sched_ext: Fixes for v7.3-rc4
- A task reenqueued while its dispatch was still completing had its queued state clobbered by the dispatcher, dropping every later dispatch of the task. Wait for the in-flight dispatch to settle first. - A wakeup activation on another CPU marked the destination runqueue as mid-wakeup, stranding a pending local reenqueue. If the scheduler was unloaded first, the stale request pointed into freed memory that the next scheduler dereferenced. - ops.dequeue() ran with the source dispatch queue's lock held, so a scheduler iterating that queue from the callback deadlocked the CPU. - Schedulers with their own CPU ID mapping had no way to learn a task's initial CPU mask and rebuilt it themselves, which went wrong across sub-scheduler enable and re-home. Pass it to ops.enable(). - A bypass dispatch event counter missed the dispatches made by the end-of-dispatch fallback and under-reported. - Selftests for the dequeue locking and initial mask changes. -----BEGIN PGP SIGNATURE----- iIQEABYKACwWIQTfIjM1kS57o3GsC/uxYfJx3gVYGQUCarWSLQ4cdGpAa2VybmVs Lm9yZwAKCRCxYfJx3gVYGY+sAP9y6nJh6vIvFh/X9FlJtWlNo0mncOKhy93E8jii 8CKnPQEAhvX3+Gcdl+imTh4Z915kdsEByBjTTPPOXnQxI8BKUAY= =VhBF -----END PGP SIGNATURE----- Merge tag 'sched_ext-for-7.3-rc4-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext Pull sched_ext fixes from Tejun Heo: - A task reenqueued while its dispatch was still completing had its queued state clobbered by the dispatcher, dropping every later dispatch of the task. Wait for the in-flight dispatch to settle first - A wakeup activation on another CPU marked the destination runqueue as mid-wakeup, stranding a pending local reenqueue. If the scheduler was unloaded first, the stale request pointed into freed memory that the next scheduler dereferenced - ops.dequeue() ran with the source dispatch queue's lock held, so a scheduler iterating that queue from the callback deadlocked the CPU - Schedulers with their own CPU ID mapping had no way to learn a task's initial CPU mask and rebuilt it themselves, which went wrong across sub-scheduler enable and re-home. Pass it to ops.enable() - A bypass dispatch event counter missed the dispatches made by the end-of-dispatch fallback and under-reported - Selftests for the dequeue locking and initial mask changes * tag 'sched_ext-for-7.3-rc4-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext: sched_ext: Count SCX_EV_SUB_BYPASS_DISPATCH in the dispatch fallback selftests/sched_ext: Check the cmask cid-form ops.enable() receives sched_ext: Pass the initial cmask to cid-form ops.enable() selftests/sched_ext: Test that ops.dequeue() can iterate the consumed DSQ sched_ext: Don't run ops.dequeue() with a DSQ lock held sched_ext: Derive SCX_RQ_IN_WAKEUP from the core enqueue flags sched_ext: Wait for SCX_OPSS_DISPATCHING before reenqueueing a task |
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Linus Torvalds
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e8dfd03a1c |
cgroup: Fixes for v7.3-rc4
- With local event accounting, a fork rejected by the pids controller updated pids.events without notifying its pollers. - A cgroup selftest failed to compile with fortification enabled because an O_TMPFILE open lacked its mode argument. -----BEGIN PGP SIGNATURE----- iIQEABYKACwWIQTfIjM1kS57o3GsC/uxYfJx3gVYGQUCarWSKg4cdGpAa2VybmVs Lm9yZwAKCRCxYfJx3gVYGYoiAQD6JUCqDjv2Hr1YeMFlsoYVQZ7tNmljVnPD2tZ6 9WmD/AEAotdlmzM8egOuDqAi2s+UMJPm8vCZuxVzewiGqhYELgk= =0Ljp -----END PGP SIGNATURE----- Merge tag 'cgroup-for-7.3-rc4-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup Pull cgroup fixes from Tejun Heo: - With local event accounting, a fork rejected by the pids controller updated pids.events without notifying its pollers - A cgroup selftest failed to compile with fortification enabled because an O_TMPFILE open lacked its mode argument * tag 'cgroup-for-7.3-rc4-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup: cgroup/pids: Restore pids.events notifications in local mode selftests: cgroup: give the O_TMPFILE open in get_temp_fd() a mode |