ALSA: pcxhr: initialize mutexes before requesting threaded IRQ (CVE-2026-80967) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-80967

ALSA: pcxhr: initialize mutexes before requesting threaded IRQ

Answer in brief

CVE-2026-80967 records a Unknown severity vulnerability in ALSA: pcxhr: initialize mutexes before requesting threaded IRQ. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 11, 2026Updated Sep 11, 2026Source checked Sep 11, 2026First seen by HOL Sep 11, 2026Material review Sep 11, 2026

Upstream Advisory

Key facts

Risk: Unknown severitySource severity not reported
Exploitation: Not marked as known exploited
Affected software: 2 mapped packages or products
Fix availability: Available

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Linux/Linuxgeneric	>=9bef72bdb26e291d6dffb04768741a0e49582666 <c069b3cfd753d6688ea0271c43553631ab38ce10 \|\| >=9bef72bdb26e291d6dffb04768741a0e49582666 <7ef9ad82d95dd3c74570d80a689a0570fbc7539e \|\| >=9bef72bdb26e291d6dffb04768741a0e49582666 <7cf280fbef5db6310e1b32074c8c34d1ba459796 \|\| >=9bef72bdb26e291d6dffb04768741a0e49582666 <6c97817e20598e5473094e0e38d1f51f1cf4dfff	c069b3cfd753d6688ea0271c43553631ab38ce10, 7ef9ad82d95dd3c74570d80a689a0570fbc7539e, 7cf280fbef5db6310e1b32074c8c34d1ba459796, 6c97817e20598e5473094e0e38d1f51f1cf4dfff
Linux/Linuxgeneric	3.18	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
Review the reported fix. Update Linux/Linux to c069b3cfd753d6688ea0271c43553631ab38ce10 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Sep 11, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 11, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 11, 2026

Sources and claim methodology

Upstream source 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.

Quoted source text, attributed separately from HOL analysis.