CVE-2026-80967

ALSA: pcxhr: initialize mutexes before requesting threaded IRQ

HIGH
8.4
CVSS Score
Published: September 11, 2026 at 07:42 PM UTC
Updated: October 19, 2026 at 09:17 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
HIGH8.4
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

In 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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

3.189bef72bdb26e291d6dffb04768741a0e49582666
Vendor states this is fixed in 039602d6ddb1febbb0561b30dab04461f78a1319 (fixed)
Vendor states this is fixed in 6c97817e20598e5473094e0e38d1f51f1cf4dfff (fixed)
Vendor states this is fixed in 7cf280fbef5db6310e1b32074c8c34d1ba459796 (fixed)
Vendor states this is fixed in 7ef9ad82d95dd3c74570d80a689a0570fbc7539e (fixed)
Vendor states this is fixed in a5f405adb0229c9cf64eb3d695c333c92e3d3d4f (fixed)
Vendor states this is fixed in c069b3cfd753d6688ea0271c43553631ab38ce10 (fixed)
Vendor states this is fixed in ede25b7fea0d7487ee8528bf35dc7b9a1cbcd814 (fixed)
Vendor states this is fixed in 3.18 (unaffected)
Vendor states this is fixed in 5.15.221 (unaffected)
Vendor states this is fixed in 6.1.188 (unaffected)
Vendor states this is fixed in 6.12.109 (unaffected)
Vendor states this is fixed in 6.18.50 (unaffected)
Vendor states this is fixed in 6.6.157 (unaffected)
Vendor states this is fixed in 7.2.4 (unaffected)
Vendor states this is fixed in 7.3 (unaffected)
Vendor states this is fixed in 7.3-rc1 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.4HIGHLinux
Vector?

Quick Info

StatusRECEIVED

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