mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/
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100,449 commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Michal Suchanek
|
2f661f71fd |
tpm: tis: Double the timeout B to 4s
With some Infineon chips the timeouts in tpm_tis_send_data (both B and
C) can reach up to about 2250 ms.
Timeout C is retried since
commit
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Jarkko Sakkinen
|
539fbab378 |
tpm: Mask TPM RC in tpm2_start_auth_session()
tpm2_start_auth_session() does not mask TPM RC correctly from the callers:
[ 28.766528] tpm tpm0: A TPM error (2307) occurred start auth session
Process TPM RCs inside tpm2_start_auth_session(), and map them to POSIX
error codes.
Cc: stable@vger.kernel.org # v6.10+
Fixes:
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Linus Torvalds
|
6f5bf947ba |
* Mitigate Indirect Target Selection (ITS) issue
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Merge tag 'its-for-linus-20250509' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 ITS mitigation from Dave Hansen:
"Mitigate Indirect Target Selection (ITS) issue.
I'd describe this one as a good old CPU bug where the behavior is
_obviously_ wrong, but since it just results in bad predictions it
wasn't wrong enough to notice. Well, the researchers noticed and also
realized that thus bug undermined a bunch of existing indirect branch
mitigations.
Thus the unusually wide impact on this one. Details:
ITS is a bug in some Intel CPUs that affects indirect branches
including RETs in the first half of a cacheline. Due to ITS such
branches may get wrongly predicted to a target of (direct or indirect)
branch that is located in the second half of a cacheline. Researchers
at VUSec found this behavior and reported to Intel.
Affected processors:
- Cascade Lake, Cooper Lake, Whiskey Lake V, Coffee Lake R, Comet
Lake, Ice Lake, Tiger Lake and Rocket Lake.
Scope of impact:
- Guest/host isolation:
When eIBRS is used for guest/host isolation, the indirect branches
in the VMM may still be predicted with targets corresponding to
direct branches in the guest.
- Intra-mode using cBPF:
cBPF can be used to poison the branch history to exploit ITS.
Realigning the indirect branches and RETs mitigates this attack
vector.
- User/kernel:
With eIBRS enabled user/kernel isolation is *not* impacted by ITS.
- Indirect Branch Prediction Barrier (IBPB):
Due to this bug indirect branches may be predicted with targets
corresponding to direct branches which were executed prior to IBPB.
This will be fixed in the microcode.
Mitigation:
As indirect branches in the first half of cacheline are affected, the
mitigation is to replace those indirect branches with a call to thunk that
is aligned to the second half of the cacheline.
RETs that take prediction from RSB are not affected, but they may be
affected by RSB-underflow condition. So, RETs in the first half of
cacheline are also patched to a return thunk that executes the RET aligned
to second half of cacheline"
* tag 'its-for-linus-20250509' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
selftest/x86/bugs: Add selftests for ITS
x86/its: FineIBT-paranoid vs ITS
x86/its: Use dynamic thunks for indirect branches
x86/ibt: Keep IBT disabled during alternative patching
mm/execmem: Unify early execmem_cache behaviour
x86/its: Align RETs in BHB clear sequence to avoid thunking
x86/its: Add support for RSB stuffing mitigation
x86/its: Add "vmexit" option to skip mitigation on some CPUs
x86/its: Enable Indirect Target Selection mitigation
x86/its: Add support for ITS-safe return thunk
x86/its: Add support for ITS-safe indirect thunk
x86/its: Enumerate Indirect Target Selection (ITS) bug
Documentation: x86/bugs/its: Add ITS documentation
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|
Linus Torvalds
|
ac814cbbab |
Misc timers fixes:
- Fix time keeping bugs in CLOCK_MONOTONIC_COARSE clocks
- Work around absolute relocations into vDSO code that
GCC erroneously emits in certain arm64 build environments
- Fix a false positive lockdep warning in the i8253 clocksource
driver
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'timers-urgent-2025-05-11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull misc timers fixes from Ingo Molnar:
- Fix time keeping bugs in CLOCK_MONOTONIC_COARSE clocks
- Work around absolute relocations into vDSO code that GCC erroneously
emits in certain arm64 build environments
- Fix a false positive lockdep warning in the i8253 clocksource driver
* tag 'timers-urgent-2025-05-11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
clocksource/i8253: Use raw_spinlock_irqsave() in clockevent_i8253_disable()
arm64: vdso: Work around invalid absolute relocations from GCC
timekeeping: Prevent coarse clocks going backwards
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Linus Torvalds
|
3ce9925823 |
22 hotfixes. 13 are cc:stable and the remainder address post-6.14 issues
or aren't considered necessary for -stable kernels. About half are for MM. Five OCFS2 fixes and a few MAINTAINERS updates. -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQTTMBEPP41GrTpTJgfdBJ7gKXxAjgUCaB/D0AAKCRDdBJ7gKXxA jk1lAPwNV14Sra7MJpVsLGip2BaJLgG+9vQ/Fg3pntEhwX4u0gD/fXEzTog/A73O xD7jQQStJYxHwu0K8CXIDUniZAXSSQw= =US5c -----END PGP SIGNATURE----- Merge tag 'mm-hotfixes-stable-2025-05-10-14-23' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Pull misc hotfixes from Andrew Morton: "22 hotfixes. 13 are cc:stable and the remainder address post-6.14 issues or aren't considered necessary for -stable kernels. About half are for MM. Five OCFS2 fixes and a few MAINTAINERS updates" * tag 'mm-hotfixes-stable-2025-05-10-14-23' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (22 commits) mm: fix folio_pte_batch() on XEN PV nilfs2: fix deadlock warnings caused by lock dependency in init_nilfs() mm/hugetlb: copy the CMA flag when demoting mm, swap: fix false warning for large allocation with !THP_SWAP selftests/mm: fix a build failure on powerpc selftests/mm: fix build break when compiling pkey_util.c mm: vmalloc: support more granular vrealloc() sizing tools/testing/selftests: fix guard region test tmpfs assumption ocfs2: stop quota recovery before disabling quotas ocfs2: implement handshaking with ocfs2 recovery thread ocfs2: switch osb->disable_recovery to enum mailmap: map Uwe's BayLibre addresses to a single one MAINTAINERS: add mm THP section mm/userfaultfd: fix uninitialized output field for -EAGAIN race selftests/mm: compaction_test: support platform with huge mount of memory MAINTAINERS: add core mm section ocfs2: fix panic in failed foilio allocation mm/huge_memory: fix dereferencing invalid pmd migration entry MAINTAINERS: add reverse mapping section x86: disable image size check for test builds ... |
||
|
Linus Torvalds
|
914a1fe5f8 |
Char/Misc/IIO driver fixes for 6.15-rc6
Here are a bunch of small driver fixes (mostly all IIO) for 6.15-rc6.
Included in here are:
- loads of tiny IIO driver fixes for reported issues
- hyperv driver fix for a much-reported and worked on sysfs ring
buffer creation bug
All of these have been in linux-next for over a week (the IIO ones for
many weeks now), with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-6.15-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc/IIO driver fixes from Greg KH:
"Here are a bunch of small driver fixes (mostly all IIO) for 6.15-rc6.
Included in here are:
- loads of tiny IIO driver fixes for reported issues
- hyperv driver fix for a much-reported and worked on sysfs ring
buffer creation bug
All of these have been in linux-next for over a week (the IIO ones for
many weeks now), with no reported issues"
* tag 'char-misc-6.15-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (30 commits)
Drivers: hv: Make the sysfs node size for the ring buffer dynamic
uio_hv_generic: Fix sysfs creation path for ring buffer
iio: adis16201: Correct inclinometer channel resolution
iio: adc: ad7606: fix serial register access
iio: pressure: mprls0025pa: use aligned_s64 for timestamp
iio: imu: adis16550: align buffers for timestamp
staging: iio: adc: ad7816: Correct conditional logic for store mode
iio: adc: ad7266: Fix potential timestamp alignment issue.
iio: adc: ad7768-1: Fix insufficient alignment of timestamp.
iio: adc: dln2: Use aligned_s64 for timestamp
iio: accel: adxl355: Make timestamp 64-bit aligned using aligned_s64
iio: temp: maxim-thermocouple: Fix potential lack of DMA safe buffer.
iio: chemical: pms7003: use aligned_s64 for timestamp
iio: chemical: sps30: use aligned_s64 for timestamp
iio: imu: inv_mpu6050: align buffer for timestamp
iio: imu: st_lsm6dsx: Fix wakeup source leaks on device unbind
iio: adc: qcom-spmi-iadc: Fix wakeup source leaks on device unbind
iio: accel: fxls8962af: Fix wakeup source leaks on device unbind
iio: adc: ad7380: fix event threshold shift
iio: hid-sensor-prox: Fix incorrect OFFSET calculation
...
|
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Peter Zijlstra
|
872df34d7c |
x86/its: Use dynamic thunks for indirect branches
ITS mitigation moves the unsafe indirect branches to a safe thunk. This could degrade the prediction accuracy as the source address of indirect branches becomes same for different execution paths. To improve the predictions, and hence the performance, assign a separate thunk for each indirect callsite. This is also a defense-in-depth measure to avoid indirect branches aliasing with each other. As an example, 5000 dynamic thunks would utilize around 16 bits of the address space, thereby gaining entropy. For a BTB that uses 32 bits for indexing, dynamic thunks could provide better prediction accuracy over fixed thunks. Have ITS thunks be variable sized and use EXECMEM_MODULE_TEXT such that they are both more flexible (got to extend them later) and live in 2M TLBs, just like kernel code, avoiding undue TLB pressure. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Pawan Gupta <pawan.kumar.gupta@linux.intel.com> Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com> Reviewed-by: Alexandre Chartre <alexandre.chartre@oracle.com> |
||
|
Peter Zijlstra
|
d6d1e3e658 |
mm/execmem: Unify early execmem_cache behaviour
Early kernel memory is RWX, only at the end of early boot (before SMP) do we mark things ROX. Have execmem_cache mirror this behaviour for early users. This avoids having to remember what code is execmem and what is not -- we can poke everything with impunity ;-) Also performance for not having to do endless text_poke_mm switches. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Pawan Gupta <pawan.kumar.gupta@linux.intel.com> Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com> Reviewed-by: Alexandre Chartre <alexandre.chartre@oracle.com> |
||
Pawan Gupta
|
f4818881c4 |
x86/its: Enable Indirect Target Selection mitigation
Indirect Target Selection (ITS) is a bug in some pre-ADL Intel CPUs with eIBRS. It affects prediction of indirect branch and RETs in the lower half of cacheline. Due to ITS such branches may get wrongly predicted to a target of (direct or indirect) branch that is located in the upper half of the cacheline. Scope of impact =============== Guest/host isolation -------------------- When eIBRS is used for guest/host isolation, the indirect branches in the VMM may still be predicted with targets corresponding to branches in the guest. Intra-mode ---------- cBPF or other native gadgets can be used for intra-mode training and disclosure using ITS. User/kernel isolation --------------------- When eIBRS is enabled user/kernel isolation is not impacted. Indirect Branch Prediction Barrier (IBPB) ----------------------------------------- After an IBPB, indirect branches may be predicted with targets corresponding to direct branches which were executed prior to IBPB. This is mitigated by a microcode update. Add cmdline parameter indirect_target_selection=off|on|force to control the mitigation to relocate the affected branches to an ITS-safe thunk i.e. located in the upper half of cacheline. Also add the sysfs reporting. When retpoline mitigation is deployed, ITS safe-thunks are not needed, because retpoline sequence is already ITS-safe. Similarly, when call depth tracking (CDT) mitigation is deployed (retbleed=stuff), ITS safe return thunk is not used, as CDT prevents RSB-underflow. To not overcomplicate things, ITS mitigation is not supported with spectre-v2 lfence;jmp mitigation. Moreover, it is less practical to deploy lfence;jmp mitigation on ITS affected parts anyways. Signed-off-by: Pawan Gupta <pawan.kumar.gupta@linux.intel.com> Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com> Reviewed-by: Josh Poimboeuf <jpoimboe@kernel.org> Reviewed-by: Alexandre Chartre <alexandre.chartre@oracle.com> |
||
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Linus Torvalds
|
2c89c1b655 |
Including fixes from CAN, WiFi and netfilter.
We have still a comple of regressions open due to the recent
drivers locking refactor. The patches are in-flight, but not
ready yet.
Current release - regressions:
- core: lock netdevices during dev_shutdown
- sch_htb: make htb_deactivate() idempotent
- eth: virtio-net: don't re-enable refill work too early
Current release - new code bugs:
- eth: icssg-prueth: fix kernel panic during concurrent Tx queue access
Previous releases - regressions:
- gre: fix again IPv6 link-local address generation.
- eth: b53: fix learning on VLAN unaware bridges
Previous releases - always broken:
- wifi: fix out-of-bounds access during multi-link element defragmentation
- can:
- initialize spin lock on device probe
- fix order of unregistration calls
- openvswitch: fix unsafe attribute parsing in output_userspace()
- eth: virtio-net: fix total qstat values
- eth: mtk_eth_soc: reset all TX queues on DMA free
- eth: fbnic: firmware IPC mailbox fixes
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Merge tag 'net-6.15-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Paolo Abeni:
"Including fixes from CAN, WiFi and netfilter.
We have still a comple of regressions open due to the recent
drivers locking refactor. The patches are in-flight, but not
ready yet.
Current release - regressions:
- core: lock netdevices during dev_shutdown
- sch_htb: make htb_deactivate() idempotent
- eth: virtio-net: don't re-enable refill work too early
Current release - new code bugs:
- eth: icssg-prueth: fix kernel panic during concurrent Tx queue
access
Previous releases - regressions:
- gre: fix again IPv6 link-local address generation.
- eth: b53: fix learning on VLAN unaware bridges
Previous releases - always broken:
- wifi: fix out-of-bounds access during multi-link element
defragmentation
- can:
- initialize spin lock on device probe
- fix order of unregistration calls
- openvswitch: fix unsafe attribute parsing in output_userspace()
- eth:
- virtio-net: fix total qstat values
- mtk_eth_soc: reset all TX queues on DMA free
- fbnic: firmware IPC mailbox fixes"
* tag 'net-6.15-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (55 commits)
virtio-net: fix total qstat values
net: export a helper for adding up queue stats
fbnic: Do not allow mailbox to toggle to ready outside fbnic_mbx_poll_tx_ready
fbnic: Pull fbnic_fw_xmit_cap_msg use out of interrupt context
fbnic: Improve responsiveness of fbnic_mbx_poll_tx_ready
fbnic: Cleanup handling of completions
fbnic: Actually flush_tx instead of stalling out
fbnic: Add additional handling of IRQs
fbnic: Gate AXI read/write enabling on FW mailbox
fbnic: Fix initialization of mailbox descriptor rings
net: dsa: b53: do not set learning and unicast/multicast on up
net: dsa: b53: fix learning on VLAN unaware bridges
net: dsa: b53: fix toggling vlan_filtering
net: dsa: b53: do not program vlans when vlan filtering is off
net: dsa: b53: do not allow to configure VLAN 0
net: dsa: b53: always rejoin default untagged VLAN on bridge leave
net: dsa: b53: fix VLAN ID for untagged vlan on bridge leave
net: dsa: b53: fix flushing old pvid VLAN on pvid change
net: dsa: b53: fix clearing PVID of a port
net: dsa: b53: keep CPU port always tagged again
...
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Kees Cook
|
a0309faf1c |
mm: vmalloc: support more granular vrealloc() sizing
Introduce struct vm_struct::requested_size so that the requested
(re)allocation size is retained separately from the allocated area size.
This means that KASAN will correctly poison the correct spans of requested
bytes. This also means we can support growing the usable portion of an
allocation that can already be supported by the existing area's existing
allocation.
Link: https://lkml.kernel.org/r/20250426001105.it.679-kees@kernel.org
Fixes:
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Jakub Kicinski
|
9540984da6 |
Couple of fixes:
* iwlwifi: add two missing device entries * cfg80211: fix a potential out-of-bounds access * mac80211: fix format of TID to link mapping action frames -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEpeA8sTs3M8SN2hR410qiO8sPaAAFAmgacfwACgkQ10qiO8sP aABEuw//X1RW+5zHLmH3EHW+buxDeqev9C/YStL/1+qtiQG4HSQGVrdr9Vv3PqFt 3MYqPzZEWQrRl4l8GW8ezsNvkGCoYwUBOq92Qa1v7tBrauOQH/zkh3KtgjgT9xql 0ZhIL0JXVmDmhv8WF7JqogwZDJ/wUy/QH006jbRvwhZ9VtQJpSVECr3hxy+pCP88 JNNVD4yQMr8al5zY8hdbgPneAvk/2llmz542BiQ65zoqI7TqERQlCwKFWat7kfFl 7+rTNRDUD0RAPnr5FE1VjIaQfHV7J0OnDpnH70C18mDsRSkU7E0GjHg0SZk3bPgV WH4OoxmnwQ1vR/vwLvFQ0Ly8oruet6SRJ4R4l0hcDD1Kkv4jpzQZzxojlf5EqUt8 N/oYuff0ju8Kb7ELR/i9PmVIl9bC24mDvzWeOn3xwiCRywGc2MF2MITz8iTzlMQk lPYe4cBhaSYwn6heyQiT1IpOEYzyfZE1zX83k8vIR3mO+umZOBlh6sv4NvMx5lbW f1u8W2sgONjehWFjFVp2h4fmj4UYy6N8NRHPt8gjkZkkfuto55/2+QPMFN9Jpg9H 3qqFoXg3uZUhVyNQ3V//R+A1eBbYwCzwE43D1Zf3RlEs5V3T1TUp10sxn1/9Jp46 wiMEY4LUujwKwAckLU2HyQwf3SSSGVKx8/PW76cWZhYjSTwcBLM= =Bzvu -----END PGP SIGNATURE----- Merge tag 'wireless-2025-05-06' of https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless Johannes Berg says: ==================== Couple of fixes: * iwlwifi: add two missing device entries * cfg80211: fix a potential out-of-bounds access * mac80211: fix format of TID to link mapping action frames * tag 'wireless-2025-05-06' of https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless: wifi: iwlwifi: add support for Killer on MTL wifi: mac80211: fix the type of status_code for negotiated TID to Link Mapping wifi: cfg80211: fix out-of-bounds access during multi-link element defragmentation ==================== Link: https://patch.msgid.link/20250506203506.158818-3-johannes@sipsolutions.net Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
||
Stanislav Fomichev
|
78cd408356 |
net: add missing instance lock to dev_set_promiscuity
Accidentally spotted while trying to understand what else needs
to be renamed to netif_ prefix. Most of the calls to dev_set_promiscuity
are adjacent to dev_set_allmulti or dev_disable_lro so it should
be safe to add the lock. Note that new netif_set_promiscuity is
currently unused, the locked paths call __dev_set_promiscuity directly.
Fixes:
|
||
Michael-CY Lee
|
e12a42f64f |
wifi: mac80211: fix the type of status_code for negotiated TID to Link Mapping
The status code should be type of __le16. Fixes: |
||
|
Linus Torvalds
|
b6a218ff8b |
Power management fixes for 6.15-rc5
- Fix a recent regression causing systems where frequency tables are
used by cpufreq to have issues with setting frequency limits (Rafael
Wysocki).
- Fix a recent regressions causing frequency boost settings to become
out-of-sync if platform firmware updates the registers associated
with frequency boost during system resume (Viresh Kumar).
- Fix a recent regression causing resume failures to occur in the
Intel Soundwire driver if the device handled by it is in runtime
suspend before a system-wide suspend (Rafael Wysocki).
- Fix an unchecked MSR aceess in the intel_pstate driver occurring when
CPUID indicates no turbo, but the driver attempts to enable turbo
frequencies due to a misleading value read from an MSR (Srinivas
Pandruvada).
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Merge tag 'pm-6.15-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fixes from Rafael Wysocki:
"These fix three recent regressions, two in cpufreq and one in the
Intel Soundwire driver, and an unchecked MSR access in the
intel_pstate driver:
- Fix a recent regression causing systems where frequency tables are
used by cpufreq to have issues with setting frequency limits
(Rafael Wysocki)
- Fix a recent regressions causing frequency boost settings to become
out-of-sync if platform firmware updates the registers associated
with frequency boost during system resume (Viresh Kumar)
- Fix a recent regression causing resume failures to occur in the
Intel Soundwire driver if the device handled by it is in runtime
suspend before a system-wide suspend (Rafael Wysocki)
- Fix an unchecked MSR aceess in the intel_pstate driver occurring
when CPUID indicates no turbo, but the driver attempts to enable
turbo frequencies due to a misleading value read from an MSR
(Srinivas Pandruvada)"
* tag 'pm-6.15-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
cpufreq: intel_pstate: Unchecked MSR aceess in legacy mode
soundwire: intel_auxdevice: Fix system suspend/resume handling
cpufreq: Fix setting policy limits when frequency tables are used
cpufreq: ACPI: Re-sync CPU boost state on system resume
|
||
Rafael J. Wysocki
|
23203ed263 |
Merge branch 'pm-cpufreq'
Merge cpufreq fixes for 6.15-rc5: - Fix a recent regression causing systems where frequency tables are used by cpufreq to have issues with setting frequency limits (Rafael Wysocki). - Fix a recent regressions causing frequency boost settings to become out-of-sync if platform firmware updates the registers associated with them during system resume (Viresh Kumar). - Fix an unchecked MSR aceess in the intel_pstate driver occurring when CPUID indicates no turbo, but the driver attempts to enable turbo frequencies due to a misleading value read from an MSR (Srinivas Pandruvada). * pm-cpufreq: cpufreq: intel_pstate: Unchecked MSR aceess in legacy mode cpufreq: Fix setting policy limits when frequency tables are used cpufreq: ACPI: Re-sync CPU boost state on system resume |
||
|
Linus Torvalds
|
8164851725 |
IOMMU Fixes for Linux v6.15-rc4:
Including:
* ARM-SMMU fixes:
- Fix broken detection of the S2FWB feature
- Ensure page-size bitmap is initialised for SVA domains
- Fix handling of SMMU client devices with duplicate Stream IDs
- Don't fail SMMU probe if Stream IDs are aliased across clients
* Intel VT-d fixes:
- Add quirk for IGFX device
- Revert an ATS change to fix a boot failure
* AMD IOMMU:
- Fix potential buffer overflow
* Core:
- Fix for iommu_copy_struct_from_user()
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Merge tag 'iommu-fixes-v6.15-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux
Pull iommu fixes from Joerg Roedel:
"ARM-SMMU fixes:
- Fix broken detection of the S2FWB feature
- Ensure page-size bitmap is initialised for SVA domains
- Fix handling of SMMU client devices with duplicate Stream IDs
- Don't fail SMMU probe if Stream IDs are aliased across clients
Intel VT-d fixes:
- Add quirk for IGFX device
- Revert an ATS change to fix a boot failure
AMD IOMMU:
- Fix potential buffer overflow
Core:
- Fix for iommu_copy_struct_from_user()"
* tag 'iommu-fixes-v6.15-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux:
iommu/vt-d: Apply quirk_iommu_igfx for 8086:0044 (QM57/QS57)
iommu/vt-d: Revert ATS timing change to fix boot failure
iommu: Fix two issues in iommu_copy_struct_from_user()
iommu/amd: Fix potential buffer overflow in parse_ivrs_acpihid
iommu/arm-smmu-v3: Fail aliasing StreamIDs more gracefully
iommu/arm-smmu-v3: Fix iommu_device_probe bug due to duplicated stream ids
iommu/arm-smmu-v3: Fix pgsize_bit for sva domains
iommu/arm-smmu-v3: Add missing S2FWB feature detection
|
||
Naman Jain
|
f31fe8165d |
uio_hv_generic: Fix sysfs creation path for ring buffer
On regular bootup, devices get registered to VMBus first, so when
uio_hv_generic driver for a particular device type is probed,
the device is already initialized and added, so sysfs creation in
hv_uio_probe() works fine. However, when the device is removed
and brought back, the channel gets rescinded and the device again gets
registered to VMBus. However this time, the uio_hv_generic driver is
already registered to probe for that device and in this case sysfs
creation is tried before the device's kobject gets initialized
completely.
Fix this by moving the core logic of sysfs creation of ring buffer,
from uio_hv_generic to HyperV's VMBus driver, where the rest of the
sysfs attributes for the channels are defined. While doing that, make
use of attribute groups and macros, instead of creating sysfs
directly, to ensure better error handling and code flow.
Problematic path:
vmbus_process_offer (A new offer comes for the VMBus device)
vmbus_add_channel_work
vmbus_device_register
|-> device_register
| |...
| |-> hv_uio_probe
| |...
| |-> sysfs_create_bin_file (leads to a warning as
| the primary channel's kobject, which is used to
| create the sysfs file, is not yet initialized)
|-> kset_create_and_add
|-> vmbus_add_channel_kobj (initialization of the primary
channel's kobject happens later)
Above code flow is sequential and the warning is always reproducible in
this path.
Fixes:
|
||
|
Linus Torvalds
|
3929527918 |
Modules fixes for v6.15-rc5
A single series is present to properly handle the module_kobject creation. It fixes a problem with missing /sys/module/<module>/drivers for built-in modules. The fix has been on linux-next for two weeks with no reported issues. -----BEGIN PGP SIGNATURE----- iQFIBAABCAAyFiEEIduBR9MnFA82q/jtumpXJwqY6poFAmgSH2YUHHBldHIucGF2 bHVAc3VzZS5jb20ACgkQumpXJwqY6poL/wf/TZEux9aieu8VOhPbV1Mo1npVAeT7 MJ5R4M6QKxPNvvBiXK5lWSVy5IPtcuwkbyEfKxV/CS668FwJeFpGFb91rRY108He EUHjj5NtZ1WhEHFRBgJPLydGZGGtJzxy3yg26x6wO58VJrIx/H3HU3jgsnj1m32a fA1cbo4Yo9gnk0YzI2KDu6A+bXi8zJVpyYDU9Ir4mdy+CVd5+vN9WypzrjHXbMya 2xhd9768sVmShY9K5+DlOXF4stVsP6CbgWGxhwIbdfLvY977QaBhrr+emrPE3uYt 5g+rg3v7ciuW14D5rLPWqZ5aXinjNt4vc7maNA9sJLW5wLOiWGXjhseUFg== =6rT4 -----END PGP SIGNATURE----- Merge tag 'modules-6.15-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/modules/linux Pull modules fixes from Petr Pavlu: "A single series to properly handle the module_kobject creation. This fixes a problem with missing /sys/module/<module>/drivers for built-in modules" * tag 'modules-6.15-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/modules/linux: drivers: base: handle module_kobject creation kernel: globalize lookup_or_create_module_kobject() kernel: refactor lookup_or_create_module_kobject() kernel: param: rename locate_module_kobject |
||
|
Linus Torvalds
|
fba784cc9e |
\n
-----BEGIN PGP SIGNATURE----- iQEzBAABCAAdFiEEq1nRK9aeMoq1VSgcnJ2qBz9kQNkFAmgREt8ACgkQnJ2qBz9k QNkYgggAshgJV9OieA91SMXAZgExns4oDPCKj2yuEDcX0hvYEBpHXo+Rp0QNgRav G3mT4eSvK6oWxSnWyijsmWp+BQxrBEa/M5LIsSv5qcmuOmiJliCnKXEdbhiHl9n+ D429k2+H6ajlwtaty4XnPpVEUYnBNAHxEwYZGRP7zJWET1KFfAcemUogzoWqqh/9 AN17J/F4v6H92th3qP6AlDAyoAeEIsdKDzX6EI2ZPnj/UdYXJKvCJsUQS5LfatrY NHmoYooBpdjpuD8r1QlOnxUsgUDinOrVdTrPKWfI711zeP6kMCFgFzZeJhNR/lTL 88G18ZDpjy6lEI4a248+QHpV+a8IVg== =OJXd -----END PGP SIGNATURE----- Merge tag 'fsnotify_for_v6.15-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs Pull fsnotify fix from Jan Kara: "A fix for the recently merged mount notification support" * tag 'fsnotify_for_v6.15-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs: selftests/fs/mount-notify: test also remove/flush of mntns marks fanotify: fix flush of mntns marks |
||
|
Rafael J. Wysocki
|
b79028039f |
cpufreq: Fix setting policy limits when frequency tables are used
Commit |
||
Thomas Gleixner
|
b71f9804f6 |
timekeeping: Prevent coarse clocks going backwards
Lei Chen raised an issue with CLOCK_MONOTONIC_COARSE seeing time
inconsistencies. Lei tracked down that this was being caused by the
adjustment:
tk->tkr_mono.xtime_nsec -= offset;
which is made to compensate for the unaccumulated cycles in offset when the
multiplicator is adjusted forward, so that the non-_COARSE clockids don't
see inconsistencies.
However, the _COARSE clockid getter functions use the adjusted xtime_nsec
value directly and do not compensate the negative offset via the
clocksource delta multiplied with the new multiplicator. In that case the
caller can observe time going backwards in consecutive calls.
By design, this negative adjustment should be fine, because the logic run
from timekeeping_adjust() is done after it accumulated approximately
multiplicator * interval_cycles
into xtime_nsec. The accumulated value is always larger then the
mult_adj * offset
value, which is subtracted from xtime_nsec. Both operations are done
together under the tk_core.lock, so the net change to xtime_nsec is always
always be positive.
However, do_adjtimex() calls into timekeeping_advance() as well, to
apply the NTP frequency adjustment immediately. In this case,
timekeeping_advance() does not return early when the offset is smaller
then interval_cycles. In that case there is no time accumulated into
xtime_nsec. But the subsequent call into timekeeping_adjust(), which
modifies the multiplicator, subtracts from xtime_nsec to correct for the
new multiplicator.
Here because there was no accumulation, xtime_nsec becomes smaller than
before, which opens a window up to the next accumulation, where the
_COARSE clockid getters, which don't compensate for the offset, can
observe the inconsistency.
This has been tried to be fixed by forwarding the timekeeper in the case
that adjtimex() adjusts the multiplier, which resets the offset to zero:
|
||
|
Linus Torvalds
|
eb98f30442 |
vfs-6.15-rc4.fixes
-----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRAhzRXHqcMeLMyaSiRxhvAZXjcogUCaAvyTwAKCRCRxhvAZXjc okgIAQDlcp1CoIBOxNaqg9PzuWjg4uaNeiKqDVliy83bu8zGhAEAmwLSVEVJGvJl ACFkKgc7+qaa3p67UmXf2HVrIg79+ww= =o5Iw -----END PGP SIGNATURE----- Merge tag 'vfs-6.15-rc4.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs Pull vfs fixes from Christian Brauner: - For some reason we went from zero to three maintainers for HFS/HFS+ in a matter of days. The lesson to learn from this might just be that we need to threaten code removal more often!? - Fix a regression introduced by enabling large folios for lage logical block sizes. This has caused issues for noref migration with large folios due to sleeping while in an atomic context. New sleeping variants of pagecache lookup helpers are introduced. These helpers take the folio lock instead of the mapping's private spinlock. The problematic users are converted to the sleeping variants and serialize against noref migration. Atomic users will bail on seeing the new BH_Migrate flag. This also shrinks the critical region of the mapping's private lock and the new blocking callers reduce contention on the spinlock for bdev mappings. - Fix two bugs in do_move_mount() when with MOVE_MOUNT_BENEATH. The first bug is using a mountpoint that is located on a mount we're not holding a reference to. The second bug is putting the mountpoint after we've called namespace_unlock() as it's no longer guaranteed that it does stay a mountpoint. - Remove a pointless call to vfs_getattr_nosec() in the devtmpfs code just to query i_mode instead of simply querying the inode directly. This also avoids lifetime issues for the dm code by an earlier bugfix this cycle that moved bdev_statx() handling into vfs_getattr_nosec(). - Fix AT_FDCWD handling with getname_maybe_null() in the xattr code. - Fix a performance regression for files when multiple callers issue a close when it's not the last reference. - Remove a duplicate noinline annotation from pipe_clear_nowait(). * tag 'vfs-6.15-rc4.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: fs/xattr: Fix handling of AT_FDCWD in setxattrat(2) and getxattrat(2) MAINTAINERS: hfs/hfsplus: add myself as maintainer splice: remove duplicate noinline from pipe_clear_nowait devtmpfs: don't use vfs_getattr_nosec to query i_mode fix a couple of races in MNT_TREE_BENEATH handling by do_move_mount() fs: fall back to file_ref_put() for non-last reference mm/migrate: fix sleep in atomic for large folios and buffer heads fs/ext4: use sleeping version of sb_find_get_block() fs/jbd2: use sleeping version of __find_get_block() fs/ocfs2: use sleeping version of __find_get_block() fs/buffer: use sleeping version of __find_get_block() fs/buffer: introduce sleeping flavors for pagecache lookups MAINTAINERS: add HFS/HFS+ maintainers fs/buffer: split locking for pagecache lookups |
||
|
Linus Torvalds
|
349b7d77f5 |
A small CephFS encryption-related fix and a dead code cleanup.
-----BEGIN PGP SIGNATURE----- iQFHBAABCAAxFiEEydHwtzie9C7TfviiSn/eOAIR84sFAmgL1ZUTHGlkcnlvbW92 QGdtYWlsLmNvbQAKCRBKf944AhHzi9KbCACTw0bAFjWzuG9EIF6UjFfDF1XVaU7f teIHfARjveZIhEYC4veM//EZeiHoFxgwdwyN3TP6Q7nwjcxHEG5/z1KC6sPtYzjA dZj/F4tXJ5h5TICxIIJAD4HSN5YgwHx/JTAq3ZkayVsAlNpUOslkK6BtilmUpPIE T3dXOdnm1e6QNjXyeaqnJoYgWqjHrENOSjA8gF0yuEUwOfmln9OPIImFRNyMrQ3q iePJd2tHzC8SKoub5qgMEXvQT6fI8zkELEvjGHk0MYSCfHK5E2LjjcEWlMqTVP4m 3n9uj2LWqKOyx5Viv+g1Ab/CuW/AnYLMfg4NPlyz7MFLts/Y/BcTElyA =pFi+ -----END PGP SIGNATURE----- Merge tag 'ceph-for-6.15-rc4' of https://github.com/ceph/ceph-client Pull ceph fixes from Ilya Dryomov: "A small CephFS encryption-related fix and a dead code cleanup" * tag 'ceph-for-6.15-rc4' of https://github.com/ceph/ceph-client: ceph: Fix incorrect flush end position calculation ceph: Remove osd_client deadcode |
||
|
Linus Torvalds
|
7deea5634a |
block-6.15-20250424
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Merge tag 'block-6.15-20250424' of git://git.kernel.dk/linux
Pull block fixes from Jens Axboe:
- Fix autoloading of drivers from stat*(2)
- Fix losing read-ahead setting one suspend/resume, when a device is
re-probed.
- Fix race between setting the block size and page cache updates.
Includes a helper that a coming XFS fix will use as well.
- ublk cancelation fixes.
- ublk selftest additions and fixes.
- NVMe pull via Christoph:
- fix an out-of-bounds access in nvmet_enable_port (Richard
Weinberger)
* tag 'block-6.15-20250424' of git://git.kernel.dk/linux:
ublk: fix race between io_uring_cmd_complete_in_task and ublk_cancel_cmd
ublk: call ublk_dispatch_req() for handling UBLK_U_IO_NEED_GET_DATA
block: don't autoload drivers on blk-cgroup configuration
block: don't autoload drivers on stat
block: remove the backing_inode variable in bdev_statx
block: move blkdev_{get,put} _no_open prototypes out of blkdev.h
block: never reduce ra_pages in blk_apply_bdi_limits
selftests: ublk: common: fix _get_disk_dev_t for pre-9.0 coreutils
selftests: ublk: remove useless 'delay_us' from 'struct dev_ctx'
selftests: ublk: fix recover test
block: hoist block size validation code to a separate function
block: fix race between set_blocksize and read paths
nvmet: fix out-of-bounds access in nvmet_enable_port
|
||
|
Linus Torvalds
|
3ae7f5093e |
Driver core fixes for 6.15-rc4
Here are some small driver core fixes to resolve a number of reported
problems. Included in here are:
- driver core sync fix revert to resolve a much reported problem,
hopefully this is finally resolved
- MAINTAINERS file update, documenting that the driver-core tree is
now under a "shared" maintainership model, thanks to Rafael and
Danilo for offering to do this!
- auxbus documentation and MAINTAINERS file update
- MAINTAINERS file update for Rust PCI code
- firmware rust binding fixup
- software node link fix
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 'driver-core-6.15-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-core
Pull driver core fixes from Greg KH:
"Here are some small driver core fixes to resolve a number of reported
problems. Included in here are:
- driver core sync fix revert to resolve a much reported problem,
hopefully this is finally resolved
- MAINTAINERS file update, documenting that the driver-core tree is
now under a "shared" maintainership model, thanks to Rafael and
Danilo for offering to do this!
- auxbus documentation and MAINTAINERS file update
- MAINTAINERS file update for Rust PCI code
- firmware rust binding fixup
- software node link fix
All of these have been in linux-next for over a week with no reported
issues"
* tag 'driver-core-6.15-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-core:
drivers/base/memory: Avoid overhead from for_each_present_section_nr()
software node: Prevent link creation failure from causing kobj reference count imbalance
device property: Add a note to the fwnode.h
drivers/base: Add myself as auxiliary bus reviewer
drivers/base: Extend documentation with preferred way to use auxbus
driver core: fix potential NULL pointer dereference in dev_uevent()
driver core: introduce device_set_driver() helper
Revert "drivers: core: synchronize really_probe() and dev_uevent()"
MAINTAINERS: update the location of the driver-core git tree
rust: firmware: Use `ffi::c_char` type in `FwFunc`
MAINTAINERS: pci: add entry for Rust PCI code
|
||
|
Linus Torvalds
|
882cd65288 |
dma-maping fixes for Linux 6.15
- avoid unused variable warnings (Arnd Bergmann, Marek Szyprowski) - add runtume warnings and debug messages for devices with limited DMA capabilities (Balbir Singh, Chen-Yu Tsai) -----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQSrngzkoBtlA8uaaJ+Jp1EFxbsSRAUCaAtFeAAKCRCJp1EFxbsS RGJwAQDIwyLQdk4XbWUZYokxIl/5jIiuaTqQBoPGPILnwoTkuAD8DlxKQvsnzkdT QK7TSFpKwrboSaveGWEG5oB60wIsKgU= =TSJY -----END PGP SIGNATURE----- Merge tag 'dma-mapping-6.15-2025-04-25' of git://git.kernel.org/pub/scm/linux/kernel/git/mszyprowski/linux Pull dma-maping fixes from Marek Szyprowski: - avoid unused variable warnings (Arnd Bergmann, Marek Szyprowski) - add runtume warnings and debug messages for devices with limited DMA capabilities (Balbir Singh, Chen-Yu Tsai) * tag 'dma-mapping-6.15-2025-04-25' of git://git.kernel.org/pub/scm/linux/kernel/git/mszyprowski/linux: dma-coherent: Warn if OF reserved memory is beyond current coherent DMA mask dma-mapping: Fix warning reported for missing prototype dma-mapping: avoid potential unused data compilation warning dma/mapping.c: dev_dbg support for dma_addressing_limited dma/contiguous: avoid warning about unused size_bytes |
||
|
Linus Torvalds
|
e72e9e6933 |
No fixes from any subtree.
Current release - regressions:
- net: fix the missing unlock for detached devices
Previous releases - regressions:
- sched: fix UAF vulnerability in HFSC qdisc
- lwtunnel: disable BHs when required
- mptcp: pm: defer freeing of MPTCP userspace path manager entries
- tipc: fix NULL pointer dereference in tipc_mon_reinit_self()
- eth: virtio-net: disable delayed refill when pausing rx
Previous releases - always broken:
- phylink: fix suspend/resume with WoL enabled and link down
- eth: mlx5: fix null-ptr-deref in mlx5_create_{inner_,}ttc_table()
- eth: xen-netfront: handle NULL returned by xdp_convert_buff_to_frame()
- eth: enetc: fix frame corruption on bpf_xdp_adjust_head/tail() and XDP_PASS
- eth: stmmac: fix dwmac1000 ptp timestamp status offset
- eth: pds_core: prevent possible adminq overflow/stuck condition
Misc:
- a bunch of MAINTAINERS updates
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Merge tag 'net-6.15-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Paolo Abeni:
"No fixes from any subtree.
Current release - regressions:
- net: fix the missing unlock for detached devices
Previous releases - regressions:
- sched: fix UAF vulnerability in HFSC qdisc
- lwtunnel: disable BHs when required
- mptcp: pm: defer freeing of MPTCP userspace path manager entries
- tipc: fix NULL pointer dereference in tipc_mon_reinit_self()
- eth: virtio-net: disable delayed refill when pausing rx
Previous releases - always broken:
- phylink: fix suspend/resume with WoL enabled and link down
- eth:
- mlx5: fix null-ptr-deref in mlx5_create_{inner_,}ttc_table()
- xen-netfront: handle NULL returned by xdp_convert_buff_to_frame()
- enetc: fix frame corruption on bpf_xdp_adjust_head/tail() and XDP_PASS
- stmmac: fix dwmac1000 ptp timestamp status offset
- pds_core: prevent possible adminq overflow/stuck condition
Misc:
- a bunch of MAINTAINERS updates"
* tag 'net-6.15-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (32 commits)
net: stmmac: fix multiplication overflow when reading timestamp
net: stmmac: fix dwmac1000 ptp timestamp status offset
net: dp83822: Fix OF_MDIO config check
pds_core: make wait_context part of q_info
pds_core: Remove unnecessary check in pds_client_adminq_cmd()
pds_core: handle unsupported PDS_CORE_CMD_FW_CONTROL result
pds_core: Prevent possible adminq overflow/stuck condition
net: dsa: mt7530: sync driver-specific behavior of MT7531 variants
selftests/tc-testing: Add test for HFSC queue emptying during peek operation
net_sched: hfsc: Fix a potential UAF in hfsc_dequeue() too
net_sched: hfsc: Fix a UAF vulnerability in class handling
selftests: mptcp: diag: use mptcp_lib_get_info_value
mptcp: pm: Defer freeing of MPTCP userspace path manager entries
net: ethernet: mtk_eth_soc: net: revise NETSYSv3 hardware configuration
tipc: fix NULL pointer dereference in tipc_mon_reinit_self()
virtio-net: disable delayed refill when pausing rx
net: phy: leds: fix memory leak
net: phylink: mac_link_(up|down)() clarifications
net: phylink: fix suspend/resume with WoL enabled and link down
net: lwtunnel: disable BHs when required
...
|
||
Christoph Hellwig
|
c63202140d |
block: move blkdev_{get,put} _no_open prototypes out of blkdev.h
These are only to be used by block internal code. Remove the comment as we grew more users due to reworking block device node opening. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Christian Brauner <brauner@kernel.org> Acked-by: Tejun Heo <tj@kernel.org> Link: https://lore.kernel.org/r/20250423053810.1683309-2-hch@lst.de Signed-off-by: Jens Axboe <axboe@kernel.dk> |
||
Amir Goldstein
|
c73c67026f |
fanotify: fix flush of mntns marks
fanotify_mark(fd, FAN_MARK_FLUSH | FAN_MARK_MNTNS, ...) incorrectly
ends up causing removal inode marks.
Fixes:
|
||
Darrick J. Wong
|
e03463d247 |
block: hoist block size validation code to a separate function
Hoist the block size validation code to bdev_validate_blocksize so that we can call it from filesystems that don't care about the bdev pagecache manipulations of set_blocksize. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Luis Chamberlain <mcgrof@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de> Link: https://lore.kernel.org/r/174543795720.4139148.840349813093799165.stgit@frogsfrogsfrogs Signed-off-by: Jens Axboe <axboe@kernel.dk> |
||
Vlastimil Babka
|
82efd569a8 |
locking/local_lock: fix _Generic() matching of local_trylock_t
Michael Larabel reported [1] a nginx performance regression in v6.15-rc3 and bisected it to commit |
||
|
Linus Torvalds
|
0251ddbffb |
virtio, vhost: fixes
A small number of fixes.
virtgpu is exempt from reset shutdown fow now -
a more complete fix is in the works
spec compliance fixes in:
virtio-pci cap commands
vhost_scsi_send_bad_target
virtio console resize
missing locking fix in vhost-scsi
virtio ring - a KCSAN false positive fix
VHOST_*_OWNER documentation fix
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
Pull virtio fixes from Michael Tsirkin:
"A small number of fixes:
- virtgpu is exempt from reset shutdown fow now - a more complete fix
is in the works
- spec compliance fixes in:
- virtio-pci cap commands
- vhost_scsi_send_bad_target
- virtio console resize
- missing locking fix in vhost-scsi
- virtio ring - a KCSAN false positive fix
- VHOST_*_OWNER documentation fix"
* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
vhost-scsi: Fix vhost_scsi_send_status()
vhost-scsi: Fix vhost_scsi_send_bad_target()
vhost-scsi: protect vq->log_used with vq->mutex
vhost_task: fix vhost_task_create() documentation
virtio_console: fix order of fields cols and rows
virtio_console: fix missing byte order handling for cols and rows
virtgpu: don't reset on shutdown
virtio_ring: Fix data race by tagging event_triggered as racy for KCSAN
vhost: fix VHOST_*_OWNER documentation
virtio_pci: Use self group type for cap commands
|
||
Russell King (Oracle)
|
ce6815585d |
net: phylink: mac_link_(up|down)() clarifications
As a result of an email from the fbnic author, I reviewed the phylink documentation, and I have decided to clarify the wording in the mac_link_(up|down)() kernel documentation as this was written from the point of view of mvneta/mvpp2 and is misleading. The documentation talks about forcing the link - indeed, this is what is done in the mvneta and mvpp2 drivers but not at the physical layer but the MACs idea, which has the effect of only allowing or stopping packet flow at the MAC. This "link" needs to be controlled when using a PHY or fixed link to start or stop packet flow at the MAC. However, as the MAC and PCS are tightly integrated, if the MACs idea of the link is forced down, it has the side effect that there is no way to determine that the media link has come up - in this mode, the MAC must be allowed to follow its built-in PCS so we can read the link state. Frame the documentation in more generic terms, to avoid the thought that the physical media link to the partner needs in some way to be forced up or down with these calls; it does not. If that were to be done, it would be a self-fulfilling prophecy - e.g. if the media link goes down, then mac_link_down() will be called, and if the media link is then placed into a forced down state, there is no possibility that the media link will ever come up again - clearly this is a wrong interpretation. These methods are notifications to the MAC about what has happened to the media link state - either from the PHY, or a PCS, or whatever mechanism fixed-link is using. Thus, reword them to get away from talking about changing link state to avoid confusion with media link state. This is not a change of any requirements of these methods. Also, remove the obsolete references to EEE for these methods, we now have the LPI functions for configuring the EEE parameters which renders this redundant, and also makes the passing of "phy" to the mac_link_up() function obsolete. Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> Reviewed-by: Maxime Chevallier <maxime.chevallier@bootlin.com> Link: https://patch.msgid.link/E1u5Ah5-001GO1-7E@rmk-PC.armlinux.org.uk Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
||
|
Linus Torvalds
|
bc3372351d |
for-6.15-rc3-tag
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Merge tag 'for-6.15-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs fixes from David Sterba:
- subpage mode fixes:
- access correct object (folio) when looking up bit offset
- fix assertion condition for number of blocks per folio
- fix upper boundary of locking range in hole punch
- zoned fixes:
- fix potential deadlock caught by lockdep when zone reporting and
device freeze run in parallel
- fix zone write pointer mismatch and NULL pointer dereference when
metadata are converted from DUP to RAID1
- fix error handling when reloc inode creation fails
- in tree-checker, unify error code for header level check
- block layer: add helpers to read zone capacity
* tag 'for-6.15-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
btrfs: zoned: skip reporting zone for new block group
block: introduce zone capacity helper
btrfs: tree-checker: adjust error code for header level check
btrfs: fix invalid inode pointer after failure to create reloc inode
btrfs: zoned: return EIO on RAID1 block group write pointer mismatch
btrfs: fix the ASSERT() inside GET_SUBPAGE_BITMAP()
btrfs: avoid page_lockend underflow in btrfs_punch_hole_lock_range()
btrfs: subpage: access correct object when reading bitmap start in subpage_calc_start_bit()
|
||
Mateusz Guzik
|
d1f7256a5a |
fs: fall back to file_ref_put() for non-last reference
This reduces the slowdown in face of multiple callers issuing close on what turns out to not be the last reference. Signed-off-by: Mateusz Guzik <mjguzik@gmail.com> Link: https://lore.kernel.org/20250418125756.59677-1-mjguzik@gmail.com Reviewed-by: Jan Kara <jack@suse.cz> Reported-by: kernel test robot <oliver.sang@intel.com> Closes: https://lore.kernel.org/oe-lkp/202504171513.6d6f8a16-lkp@intel.com Signed-off-by: Christian Brauner <brauner@kernel.org> |
||
Davidlohr Bueso
|
2d900efff9 |
mm/migrate: fix sleep in atomic for large folios and buffer heads
The large folio + buffer head noref migration scenarios are being naughty and blocking while holding a spinlock. As a consequence of the pagecache lookup path taking the folio lock this serializes against migration paths, so they can wait for each other. For the private_lock atomic case, a new BH_Migrate flag is introduced which enables the lookup to bail. This allows the critical region of the private_lock on the migration path to be reduced to the way it was before |
||
|
Davidlohr Bueso
|
2814a7d3d2 |
fs/buffer: introduce sleeping flavors for pagecache lookups
Add __find_get_block_nonatomic() and sb_find_get_block_nonatomic() calls for which users will be converted where safe. These versions will take the folio lock instead of the mapping's private_lock. Reviewed-by: Jan Kara <jack@suse.cz> Signed-off-by: Davidlohr Bueso <dave@stgolabs.net> Link: https://kdevops.org/ext4/v6.15-rc2.html # [0] Link: https://lore.kernel.org/all/aAAEvcrmREWa1SKF@bombadil.infradead.org/ # [1] Link: https://lore.kernel.org/20250418015921.132400-3-dave@stgolabs.net Tested-by: kdevops@lists.linux.dev Reviewed-by: Luis Chamberlain <mcgrof@kernel.org> Signed-off-by: Christian Brauner <brauner@kernel.org> |
||
|
Linus Torvalds
|
6fea5fabd3 |
16 hotfixes. 2 are cc:stable and the remainder address post-6.14 issues
or aren't considered necessary for -stable kernels. All patches are basically for MM although five are alterations to MAINTAINERS. -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQTTMBEPP41GrTpTJgfdBJ7gKXxAjgUCaAR3JgAKCRDdBJ7gKXxA jtmLAP9d1h4Y7BnjJ876oPm8s3GQoasiAP6AJw3hbK7rX880vwD8DqU1IM3bTBDu Z9ro41MvytxWKRMEaaYUMcrh04l1IQk= =Fcx+ -----END PGP SIGNATURE----- Merge tag 'mm-hotfixes-stable-2025-04-19-21-24' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Pull misc hotfixes from Andrew Morton: "16 hotfixes. 2 are cc:stable and the remainder address post-6.14 issues or aren't considered necessary for -stable kernels. All patches are basically for MM although five are alterations to MAINTAINERS" [ Basic counting skills are clearly not a strictly necessary requirement for kernel maintainers. - Linus ] * tag 'mm-hotfixes-stable-2025-04-19-21-24' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: MAINTAINERS: add section for locking of mm's and VMAs mm: vmscan: fix kswapd exit condition in defrag_mode mm: vmscan: restore high-cpu watermark safety in kswapd MAINTAINERS: add Pedro as reviewer to the MEMORY MAPPING section mm/memory: move sanity checks in do_wp_page() after mapcount vs. refcount stabilization mm, hugetlb: increment the number of pages to be reset on HVO writeback: fix false warning in inode_to_wb() docs: ABI: replace mcroce@microsoft.com with new Meta address mm/gup: fix wrongly calculated returned value in fault_in_safe_writeable() MAINTAINERS: add memory advice section MAINTAINERS: add mmap trace events to MEMORY MAPPING mm: memcontrol: fix swap counter leak from offline cgroup MAINTAINERS: add MM subsection for the page allocator MAINTAINERS: update SLAB ALLOCATOR maintainers fs/dax: fix folio splitting issue by resetting old folio order + _nr_pages mm/page_alloc: fix deadlock on cpu_hotplug_lock in __accept_page() |
||
|
Linus Torvalds
|
119009db26 |
vfs-6.15-rc3.fixes.2
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Merge tag 'vfs-6.15-rc3.fixes.2' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull vfs fixes from Christian Brauner:
- Revert the hfs{plus} deprecation warning that's also included in this
pull request. The commit introducing the deprecation warning resides
rather early in this branch. So simply dropping it would've rebased
all other commits which I decided to avoid. Hence the revert in the
same branch
[ Background - the deprecation warning discussion resulted in people
stepping up, and so hfs{plus} will have a maintainer taking care of
it after all.. - Linus ]
- Switch CONFIG_SYSFS_SYCALL default to n and decouple from
CONFIG_EXPERT
- Fix an audit bug caused by changes to our kernel path lookup helpers
this cycle. Audit needs the parent path even if the dentry it tried
to look up is negative
- Ensure that the kernel path lookup helpers leave the passed in path
argument clean when they return an error. This is consistent with all
our other helpers
- Ensure that vfs_getattr_nosec() calls bdev_statx() so the relevant
information is available to kernel consumers as well
- Don't set a timer and call schedule() if the timer will expire
immediately in epoll
- Make netfs lookup tables with __nonstring
* tag 'vfs-6.15-rc3.fixes.2' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
Revert "hfs{plus}: add deprecation warning"
fs: move the bdex_statx call to vfs_getattr_nosec
netfs: Mark __nonstring lookup tables
eventpoll: Set epoll timeout if it's in the future
fs: ensure that *path_locked*() helpers leave passed path pristine
fs: add kern_path_locked_negative()
hfs{plus}: add deprecation warning
Kconfig: switch CONFIG_SYSFS_SYCALL default to n
|
||
|
Linus Torvalds
|
1ca0f935a1 |
nfsd-6.15 fixes:
- v6.15 libcrc clean-up makes invalid configurations possible - Fix a potential deadlock introduced during the v6.15 merge window -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEKLLlsBKG3yQ88j7+M2qzM29mf5cFAmgD2mYACgkQM2qzM29m f5fn3xAAlPZP7MInbeszGMeRw9zdWaqbg4C90Gehdvi7sMBIYRo9E36NZuT4vl4D dfpHhoMIPMO5gsGrOeJZAT27La1F8M+O4yZOiuheTfIikaBrbZcZZtpwdRQHayGw qhHz8XoVNPsqvnoG+95u15XWG4IbI4kme2gNbYxEgF8zGERLv1aKPQTh3FqYG7Bk +9ANjoPNCAlnUAYdVHJZ5kwfTR10pDwx+jC45pZA4+hAusLx1Ek43pkcBgLMvoh2 ylbWa6SKceVdh/kb3rWaKXtVptNjcaMWLUZNSpd6Bu9e3zDCfjJN0hKUamHD+hSn HjYKbNU1W/l0wJsq9KKDwrOgE7LDZPP/mQ3MkFtMR/ccyTCAGe9Wy6nv7PnwEAu2 GqRh34VbNDGMPp4bpuTlp2FAL91BtGyYCkuwDZ1lqUDqnCmg4gRjyzFpkFF4lXPJ hq4J3NgA9BjO9wlQ4P3KNKFgE34s/8R0ey7euyrI5hxFoVFKxr5DNgKXVeW0FsY/ zMaDLzVN2Uv37IxjKhc1XvE2Ml6+J3tRv9awv+Yp05tG8/3vAhogs7So3TtwfWdU iWA3G0+zB30ATqdeXwpmJ8XxIqBnixDKhJcnLNOwrT+vAeqqqa0C39M0sOTQTMg3 VyFYkgt7v8jljp34DRfc4DAhTCsHzBzgAh9H/jrTP1xDlp7i7AU= =vCFi -----END PGP SIGNATURE----- Merge tag 'nfsd-6.15-1' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux Pull nfsd fixes from Chuck Lever: - v6.15 libcrc clean-up makes invalid configurations possible - Fix a potential deadlock introduced during the v6.15 merge window * tag 'nfsd-6.15-1' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux: nfsd: decrease sc_count directly if fail to queue dl_recall nfs: add missing selections of CONFIG_CRC32 |
||
|
Linus Torvalds
|
b0c3bc35a5 |
Miscellaneous fixes:
- Fix BCM2712 irqchip driver Kconfig dependencies
required on the Raspberry PI5
- Fix spurious interrupts on RZ/G3E SMARC EVK systems
- Fix crash regression on Sun/NIU hardware
- Apply MSI driver quirk for Sun Neptune chips
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'irq-urgent-2025-04-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull misc irq fixes from Ingo Molnar:
- Fix BCM2712 irqchip driver Kconfig dependencies required on the
Raspberry PI5
- Fix spurious interrupts on RZ/G3E SMARC EVK systems
- Fix crash regression on Sun/NIU hardware
- Apply MSI driver quirk for Sun Neptune chips
* tag 'irq-urgent-2025-04-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
irqchip/irq-bcm2712-mip: Enable driver when ARCH_BCM2835 is enabled
irqchip/renesas-rzv2h: Prevent TINT spurious interrupt
net/niu: Niu requires MSIX ENTRY_DATA fields touch before entry reads
PCI/MSI: Add an option to write MSIX ENTRY_DATA before any reads
|
||
Michael S. Tsirkin
|
183a08715a |
virtgpu: don't reset on shutdown
It looks like GPUs are used after shutdown is invoked.
Thus, breaking virtio gpu in the shutdown callback is not a good idea -
guest hangs attempting to finish console drawing, with these warnings:
[ 20.504464] WARNING: CPU: 0 PID: 568 at drivers/gpu/drm/virtio/virtgpu_vq.c:358 virtio_gpu_queue_ctrl_sgs+0x236/0x290 [virtio_gpu]
[ 20.505685] Modules linked in: nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_ct nft_chain_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 rfkill ip_set nf_tables nfnetlink vfat fat intel_rapl_msr intel_rapl_common intel_uncore_frequency_common nfit libnvdimm kvm_intel kvm rapl iTCO_wdt iTCO_vendor_support virtio_gpu virtio_dma_buf pcspkr drm_shmem_helper i2c_i801 drm_kms_helper lpc_ich i2c_smbus virtio_balloon joydev drm fuse xfs libcrc32c ahci libahci crct10dif_pclmul crc32_pclmul crc32c_intel libata virtio_net ghash_clmulni_intel net_failover virtio_blk failover serio_raw dm_mirror dm_region_hash dm_log dm_mod
[ 20.511847] CPU: 0 PID: 568 Comm: kworker/0:3 Kdump: loaded Tainted: G W ------- --- 5.14.0-578.6675_1757216455.el9.x86_64 #1
[ 20.513157] Hardware name: Red Hat KVM/RHEL, BIOS edk2-20241117-3.el9 11/17/2024
[ 20.513918] Workqueue: events drm_fb_helper_damage_work [drm_kms_helper]
[ 20.514626] RIP: 0010:virtio_gpu_queue_ctrl_sgs+0x236/0x290 [virtio_gpu]
[ 20.515332] Code: 00 00 48 85 c0 74 0c 48 8b 78 08 48 89 ee e8 51 50 00 00 65 ff 0d 42 e3 74 3f 0f 85 69 ff ff ff 0f 1f 44 00 00 e9 5f ff ff ff <0f> 0b e9 3f ff ff ff 48 83 3c 24 00 74 0e 49 8b 7f 40 48 85 ff 74
[ 20.517272] RSP: 0018:ff34f0a8c0787ad8 EFLAGS: 00010282
[ 20.517820] RAX: 00000000fffffffb RBX: 0000000000000000 RCX: 0000000000000820
[ 20.518565] RDX: 0000000000000000 RSI: ff34f0a8c0787be0 RDI: ff218bef03a26300
[ 20.519308] RBP: ff218bef03a26300 R08: 0000000000000001 R09: ff218bef07224360
[ 20.520059] R10: 0000000000008dc0 R11: 0000000000000002 R12: ff218bef02630028
[ 20.520806] R13: ff218bef0263fb48 R14: ff218bef00cb8000 R15: ff218bef07224360
[ 20.521555] FS: 0000000000000000(0000) GS:ff218bef7ba00000(0000) knlGS:0000000000000000
[ 20.522397] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 20.522996] CR2: 000055ac4f7871c0 CR3: 000000010b9f2002 CR4: 0000000000771ef0
[ 20.523740] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 20.524477] DR3: 0000000000000000 DR6: 00000000fffe07f0 DR7: 0000000000000400
[ 20.525223] PKRU: 55555554
[ 20.525515] Call Trace:
[ 20.525777] <TASK>
[ 20.526003] ? show_trace_log_lvl+0x1c4/0x2df
[ 20.526464] ? show_trace_log_lvl+0x1c4/0x2df
[ 20.526925] ? virtio_gpu_queue_fenced_ctrl_buffer+0x82/0x2c0 [virtio_gpu]
[ 20.527643] ? virtio_gpu_queue_ctrl_sgs+0x236/0x290 [virtio_gpu]
[ 20.528282] ? __warn+0x7e/0xd0
[ 20.528621] ? virtio_gpu_queue_ctrl_sgs+0x236/0x290 [virtio_gpu]
[ 20.529256] ? report_bug+0x100/0x140
[ 20.529643] ? handle_bug+0x3c/0x70
[ 20.530010] ? exc_invalid_op+0x14/0x70
[ 20.530421] ? asm_exc_invalid_op+0x16/0x20
[ 20.530862] ? virtio_gpu_queue_ctrl_sgs+0x236/0x290 [virtio_gpu]
[ 20.531506] ? virtio_gpu_queue_ctrl_sgs+0x174/0x290 [virtio_gpu]
[ 20.532148] virtio_gpu_queue_fenced_ctrl_buffer+0x82/0x2c0 [virtio_gpu]
[ 20.532843] virtio_gpu_primary_plane_update+0x3e2/0x460 [virtio_gpu]
[ 20.533520] drm_atomic_helper_commit_planes+0x108/0x320 [drm_kms_helper]
[ 20.534233] drm_atomic_helper_commit_tail+0x45/0x80 [drm_kms_helper]
[ 20.534914] commit_tail+0xd2/0x130 [drm_kms_helper]
[ 20.535446] drm_atomic_helper_commit+0x11b/0x140 [drm_kms_helper]
[ 20.536097] drm_atomic_commit+0xa4/0xe0 [drm]
[ 20.536588] ? __pfx___drm_printfn_info+0x10/0x10 [drm]
[ 20.537162] drm_atomic_helper_dirtyfb+0x192/0x270 [drm_kms_helper]
[ 20.537823] drm_fbdev_shmem_helper_fb_dirty+0x43/0xa0 [drm_shmem_helper]
[ 20.538536] drm_fb_helper_damage_work+0x87/0x160 [drm_kms_helper]
[ 20.539188] process_one_work+0x194/0x380
[ 20.539612] worker_thread+0x2fe/0x410
[ 20.540007] ? __pfx_worker_thread+0x10/0x10
[ 20.540456] kthread+0xdd/0x100
[ 20.540791] ? __pfx_kthread+0x10/0x10
[ 20.541190] ret_from_fork+0x29/0x50
[ 20.541566] </TASK>
[ 20.541802] ---[ end trace 0000000000000000 ]---
It looks like the shutdown is called in the middle of console drawing, so
we should either wait for it to finish, or let drm handle the shutdown.
This patch implements this second option:
Add an option for drivers to bypass the common break+reset handling.
As DRM is careful to flush/synchronize outstanding buffers, it looks like
GPU can just have a NOP there.
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Tested-by: Eric Auger <eric.auger@redhat.com>
Fixes:
|
||
Johannes Weiner
|
3844818145 |
mm: vmscan: restore high-cpu watermark safety in kswapd
Vlastimil points out that commit |
||
Andreas Gruenbacher
|
9e888998ea |
writeback: fix false warning in inode_to_wb()
inode_to_wb() is used also for filesystems that don't support cgroup
writeback. For these filesystems inode->i_wb is stable during the
lifetime of the inode (it points to bdi->wb) and there's no need to hold
locks protecting the inode->i_wb dereference. Improve the warning in
inode_to_wb() to not trigger for these filesystems.
Link: https://lkml.kernel.org/r/20250412163914.3773459-3-agruenba@redhat.com
Fixes:
|
||
David Hildenbrand
|
98b1917cde |
fs/dax: fix folio splitting issue by resetting old folio order + _nr_pages
Alison reports an issue with fsdax when large extends end up using large ZONE_DEVICE folios: [ 417.796271] BUG: kernel NULL pointer dereference, address: 0000000000000b00 [ 417.796982] #PF: supervisor read access in kernel mode [ 417.797540] #PF: error_code(0x0000) - not-present page [ 417.798123] PGD 2a5c5067 P4D 2a5c5067 PUD 2a5c6067 PMD 0 [ 417.798690] Oops: Oops: 0000 [#1] SMP NOPTI [ 417.799178] CPU: 5 UID: 0 PID: 1515 Comm: mmap Tainted: ... [ 417.800150] Tainted: [O]=OOT_MODULE [ 417.800583] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 0.0.0 02/06/2015 [ 417.801358] RIP: 0010:__lruvec_stat_mod_folio+0x7e/0x250 [ 417.801948] Code: ... [ 417.803662] RSP: 0000:ffffc90002be3a08 EFLAGS: 00010206 [ 417.804234] RAX: 0000000000000000 RBX: 0000000000000200 RCX: 0000000000000002 [ 417.804984] RDX: ffffffff815652d7 RSI: 0000000000000000 RDI: ffffffff82a2beae [ 417.805689] RBP: ffffc90002be3a28 R08: 0000000000000000 R09: 0000000000000000 [ 417.806384] R10: ffffea0007000040 R11: ffff888376ffe000 R12: 0000000000000001 [ 417.807099] R13: 0000000000000012 R14: ffff88807fe4ab40 R15: ffff888029210580 [ 417.807801] FS: 00007f339fa7a740(0000) GS:ffff8881fa9b9000(0000) knlGS:0000000000000000 [ 417.808570] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 417.809193] CR2: 0000000000000b00 CR3: 000000002a4f0004 CR4: 0000000000370ef0 [ 417.809925] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 417.810622] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 417.811353] Call Trace: [ 417.811709] <TASK> [ 417.812038] folio_add_file_rmap_ptes+0x143/0x230 [ 417.812566] insert_page_into_pte_locked+0x1ee/0x3c0 [ 417.813132] insert_page+0x78/0xf0 [ 417.813558] vmf_insert_page_mkwrite+0x55/0xa0 [ 417.814088] dax_fault_iter+0x484/0x7b0 [ 417.814542] dax_iomap_pte_fault+0x1ca/0x620 [ 417.815055] dax_iomap_fault+0x39/0x40 [ 417.815499] __xfs_write_fault+0x139/0x380 [ 417.815995] ? __handle_mm_fault+0x5e5/0x1a60 [ 417.816483] xfs_write_fault+0x41/0x50 [ 417.816966] xfs_filemap_fault+0x3b/0xe0 [ 417.817424] __do_fault+0x31/0x180 [ 417.817859] __handle_mm_fault+0xee1/0x1a60 [ 417.818325] ? debug_smp_processor_id+0x17/0x20 [ 417.818844] handle_mm_fault+0xe1/0x2b0 [...] The issue is that when we split a large ZONE_DEVICE folio to order-0 ones, we don't reset the order/_nr_pages. As folio->_nr_pages overlays page[1]->memcg_data, once page[1] is a folio, it suddenly looks like it has folio->memcg_data set. And we never manually initialize folio->memcg_data in fsdax code, because we never expect it to be set at all. When __lruvec_stat_mod_folio() then stumbles over such a folio, it tries to use folio->memcg_data (because it's non-NULL) but it does not actually point at a memcg, resulting in the problem. Alison also observed that these folios sometimes have "locked" set, which is rather concerning (folios locked from the beginning ...). The reason is that the order for large folios is stored in page[1]->flags, which become the folio->flags of a new small folio. Let's fix it by adding a folio helper to clear order/_nr_pages for splitting purposes. Maybe we should reinitialize other large folio flags / folio members as well when splitting, because they might similarly cause harm once page[1] becomes a folio? At least other flags in PAGE_FLAGS_SECOND should not be set for fsdax, so at least page[1]->flags might be as expected with this fix. From a quick glimpse, initializing ->mapping, ->pgmap and ->share should re-initialize most things from a previous page[1] used by large folios that fsdax cares about. For example folio->private might not get reinitialized, but maybe that's not relevant -- no traces of it's use in fsdax code. Needs a closer look. Another thing that should be considered in the future is performing similar checks as we perform in free_tail_page_prepare() -- checking pincount etc. -- when freeing a large fsdax folio. Link: https://lkml.kernel.org/r/20250410091020.119116-1-david@redhat.com Fixes: |
||
Kirill A. Shutemov
|
4067196a52 |
mm/page_alloc: fix deadlock on cpu_hotplug_lock in __accept_page()
When the last page in the zone is accepted, __accept_page() calls
static_branch_dec(). This function takes cpu_hotplug_lock, which can lead
to a deadlock if the allocation occurs during CPU bringup path as
_cpu_up() also takes the lock.
To prevent this deadlock, defer static_branch_dec() to a workqueue.
Call static_branch_dec() only when the workqueue is not yet initialized.
Workqueues are initialized before CPU bring up, so this will not conflict
with the first scenario.
Link: https://lkml.kernel.org/r/20250329171030.3942298-1-kirill.shutemov@linux.intel.com
Fixes:
|
||
|
Linus Torvalds
|
8176e776cb |
sound fixes for 6.15-rc3
A collection of small fixes since the previous PR. All are device-specific like quirks, new IDs, and other safe (or rather boring) changes. -----BEGIN PGP SIGNATURE----- iQJCBAABCAAsFiEEIXTw5fNLNI7mMiVaLtJE4w1nLE8FAmgA4nQOHHRpd2FpQHN1 c2UuZGUACgkQLtJE4w1nLE9NLBAAwZZ+0VdCFG0MwIjCIKnHemmtZ23q7yD9f7Qp xFH/AoOk3N/BNtyjD23NtC1RM1utA7wcCUfPu45tAXsg0NJDgb6q/yWDhATImTLt exRZORJpatvveu19WPGOV2u/P+PLEQxW7EsYx8niK7Nxh+f8GiSNboMIVdCgKk1X yycuZqLAmpSlNSk2VD2qaZu5KBcdAfsvhr1qeidF3LOFSQL6j9r8R2xbB6FW4eDX ol1QRWq303wNaPQ6/YvyvSceqGIwX8yOtwT0QHzRIyFus1qPH4wsSsovOYml3Jci VOt0c+XBuJm02d0KSZvaaNU8G52/8HJWl9J+uirPLy9GIupXj9tue43gL0rD1CXQ XkEWenRK5MgO6WWRqnUWdWqkFcIupXWQDl7qXEgwlhVme7J+t4PspTaUImflnLAn LoCLBCmsCV56LGTk0LZ8TUqM90lAvhmo1vE2EIwCI6Ut/AcmSOQrd3j9BhjaHjBp 801ROeGNKZYmWs23Rs5SFER4xx4lLXah0fNPMpWaw5MkTT9oPaPj+46OmaxK6T0a 7yWMg8kgPuKajtTgXMCI3EkfNK8k/fxQfEgxiGTal/T9A5nEuVa9dJK7AmwHHuk9 QfKQHDwG/+1/5ZhC8NIgkMAxoRHUE9sq0vNgyRizHqJzhpEfJBbFZmSuhdRDvbkv 9isx+Ic= =MjEv -----END PGP SIGNATURE----- Merge tag 'sound-6.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound Pull sound fixes from Takashi Iwai: "A collection of small fixes. All are device-specific like quirks, new IDs, and other safe (or rather boring) changes" * tag 'sound-6.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: firmware: cs_dsp: test_bin_error: Fix uninitialized data used as fw version ASoC: codecs: Add of_match_table for aw888081 driver ASoC: fsl: fsl_qmc_audio: Reset audio data pointers on TRIGGER_START event mailmap: Add entry for Srinivas Kandagatla MAINTAINERS: use kernel.org alias ASoC: cs42l43: Reset clamp override on jack removal ALSA: hda/realtek - Fixed ASUS platform headset Mic issue ALSA: hda/cirrus_scodec_test: Don't select dependencies ALSA: azt2320: Replace deprecated strcpy() with strscpy() ASoC: hdmi-codec: use RTD ID instead of DAI ID for ELD entry ASoC: Intel: avs: Constrain path based on BE capabilities ALSA: hda/tas2781: Remove unnecessary NULL check before release_firmware() ASoC: Intel: avs: Fix null-ptr-deref in avs_component_probe() ASoC: fsl_asrc_dma: get codec or cpu dai from backend ASoC: qcom: Fix sc7280 lpass potential buffer overflow ASoC: dwc: always enable/disable i2s irqs ASoC: Intel: sof_sdw: Add quirk for Asus Zenbook S16 ASoC: codecs:lpass-wsa-macro: Fix logic of enabling vi channels ASoC: codecs:lpass-wsa-macro: Fix vi feedback rate |
||
|
Linus Torvalds
|
8499899816 |
platform-drivers-x86 for v6.15-3
Fixes:
- amd/pmf: Fix STT limits
- asus-laptop: Fix an uninitialized variable
- intel_pmc_ipc: Allow building without ACPI
- mlxbf-bootctl: Use sysfs_emit_at() in secure_boot_fuse_state_show()
- msi-wmi-platform: Add locking to workaround ACPI firmware bug
New HW support:
- alienware-wmi-wmax:
- Extended thermal control support to:
- Alienware Area-51m R2
- Alienware m16 R1
- Alienware m16 R2
- Dell G16 7630
- Dell G5 5505 SE
- G-Mode support to Alienware m16 R1
- x86-android-tablets: Add Vexia Edu Atla 10 tablet 5V data
The following is an automated shortlog grouped by driver:
alienware-wmi-wmax:
- Add G-Mode support to Alienware m16 R1
- Extend support to more laptops
amd: pmf:
- Fix STT limits
asus-laptop:
- Fix an uninitialized variable
intel_pmc_ipc:
- add option to build without ACPI
mlxbf-bootctl:
- use sysfs_emit_at() in secure_boot_fuse_state_show()
msi-wmi-platform:
- Rename "data" variable
- Workaround a ACPI firmware bug
x86-android-tablets:
- Add "9v" to Vexia EDU ATLA 10 tablet symbols
- Add Vexia Edu Atla 10 tablet 5V data
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Merge tag 'platform-drivers-x86-v6.15-3' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86
Pull x86 platform drivers fixes from Ilpo Järvinen:
"Fixes:
- amd/pmf: Fix STT limits
- asus-laptop: Fix an uninitialized variable
- intel_pmc_ipc: Allow building without ACPI
- mlxbf-bootctl: Use sysfs_emit_at() in secure_boot_fuse_state_show()
- msi-wmi-platform: Add locking to workaround ACPI firmware bug
New HW support:
- alienware-wmi-wmax:
- Extended thermal control support to:
- Alienware Area-51m R2
- Alienware m16 R1
- Alienware m16 R2
- Dell G16 7630
- Dell G5 5505 SE
- G-Mode support to Alienware m16 R1
- x86-android-tablets: Add Vexia Edu Atla 10 tablet 5V data"
* tag 'platform-drivers-x86-v6.15-3' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86:
platform/x86: msi-wmi-platform: Workaround a ACPI firmware bug
platform/x86: msi-wmi-platform: Rename "data" variable
platform/x86: alienware-wmi-wmax: Extend support to more laptops
platform/x86: alienware-wmi-wmax: Add G-Mode support to Alienware m16 R1
platform/x86: amd: pmf: Fix STT limits
mlxbf-bootctl: use sysfs_emit_at() in secure_boot_fuse_state_show()
platform/x86: x86-android-tablets: Add Vexia Edu Atla 10 tablet 5V data
platform/x86: x86-android-tablets: Add "9v" to Vexia EDU ATLA 10 tablet symbols
asus-laptop: Fix an uninitialized variable
platform/x86: intel_pmc_ipc: add option to build without ACPI
|
||
Nicolin Chen
|
30a3f2f3e4 |
iommu: Fix two issues in iommu_copy_struct_from_user()
In the review for iommu_copy_struct_to_user() helper, Matt pointed out that
a NULL pointer should be rejected prior to dereferencing it:
https://lore.kernel.org/all/86881827-8E2D-461C-BDA3-FA8FD14C343C@nvidia.com
And Alok pointed out a typo at the same time:
https://lore.kernel.org/all/480536af-6830-43ce-a327-adbd13dc3f1d@oracle.com
Since both issues were copied from iommu_copy_struct_from_user(), fix them
first in the current header.
Fixes:
|