ALSA: pcxhr: initialize mutexes before requesting threaded IRQ

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-80967
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-11 20:19:02 UTC
Updated2026-09-13 07:17:03 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: ALSA: pcxhr: initialize mutexes before requesting threaded IRQ pcxhr_probe() requests pcxhr_threaded_irq() before initializing mgr->lock, even though the threaded handler takes that mutex. Initialize the manager locks before request_threaded_irq() so an early interrupt cannot run against uninitialized mutex state during probe.

Risk And Classification

Primary CVSS: v3.1 8.4 HIGH from 416baaa9-dc9f-4396-8d5f-8c081fb06d67

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.001820000 probability, percentile 0.079590000 (date 2026-09-13)

VersionSourceTypeScoreSeverityVector
3.1416baaa9-dc9f-4396-8d5f-8c081fb06d67Secondary8.4HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
3.1CNADECLARED8.4HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 9bef72bdb26e291d6dffb04768741a0e49582666 c069b3cfd753d6688ea0271c43553631ab38ce10 git Not specified
CNA Linux Linux affected 9bef72bdb26e291d6dffb04768741a0e49582666 7ef9ad82d95dd3c74570d80a689a0570fbc7539e git Not specified
CNA Linux Linux affected 9bef72bdb26e291d6dffb04768741a0e49582666 7cf280fbef5db6310e1b32074c8c34d1ba459796 git Not specified
CNA Linux Linux affected 9bef72bdb26e291d6dffb04768741a0e49582666 6c97817e20598e5473094e0e38d1f51f1cf4dfff git Not specified
CNA Linux Linux affected 3.18 Not specified
CNA Linux Linux unaffected 3.18 semver Not specified
CNA Linux Linux unaffected 6.12.109 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.50 6.18.* semver Not specified
CNA Linux Linux unaffected 7.2.4 7.2.* semver Not specified
CNA Linux Linux unaffected 7.3-rc1 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/6c97817e20598e5473094e0e38d1f51f1cf4dfff 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/c069b3cfd753d6688ea0271c43553631ab38ce10 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/7cf280fbef5db6310e1b32074c8c34d1ba459796 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/7ef9ad82d95dd3c74570d80a689a0570fbc7539e 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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