---
id: CVE-2026-80967
title: 'ALSA: pcxhr: initialize mutexes before requesting threaded IRQ'
summary: |-
  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 hand…
severity: high
cvss: 8.4
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'
cvssSource: cna
cwe:
  - CWE-909
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 9bef72bdb26e291d6dffb04768741a0e49582666 <
    039602d6ddb1febbb0561b30dab04461f78a1319
  - >-
    Linux >= 9bef72bdb26e291d6dffb04768741a0e49582666 <
    a5f405adb0229c9cf64eb3d695c333c92e3d3d4f
  - >-
    Linux >= 9bef72bdb26e291d6dffb04768741a0e49582666 <
    ede25b7fea0d7487ee8528bf35dc7b9a1cbcd814
  - >-
    Linux >= 9bef72bdb26e291d6dffb04768741a0e49582666 <
    c069b3cfd753d6688ea0271c43553631ab38ce10
  - >-
    Linux >= 9bef72bdb26e291d6dffb04768741a0e49582666 <
    7ef9ad82d95dd3c74570d80a689a0570fbc7539e
  - >-
    Linux >= 9bef72bdb26e291d6dffb04768741a0e49582666 <
    7cf280fbef5db6310e1b32074c8c34d1ba459796
  - >-
    Linux >= 9bef72bdb26e291d6dffb04768741a0e49582666 <
    6c97817e20598e5473094e0e38d1f51f1cf4dfff
  - Linux 3.18
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-10-16T19:21:30.969232Z'
published: '2026-09-11'
updated: '2026-10-19'
sourceUpdated: '2026-10-19T08:45:52.076Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-80967'
references:
  - url: 'https://git.kernel.org/stable/c/039602d6ddb1febbb0561b30dab04461f78a1319'
  - url: 'https://git.kernel.org/stable/c/a5f405adb0229c9cf64eb3d695c333c92e3d3d4f'
  - url: 'https://git.kernel.org/stable/c/ede25b7fea0d7487ee8528bf35dc7b9a1cbcd814'
  - url: 'https://git.kernel.org/stable/c/c069b3cfd753d6688ea0271c43553631ab38ce10'
  - url: 'https://git.kernel.org/stable/c/7ef9ad82d95dd3c74570d80a689a0570fbc7539e'
  - url: 'https://git.kernel.org/stable/c/7cf280fbef5db6310e1b32074c8c34d1ba459796'
  - url: 'https://git.kernel.org/stable/c/6c97817e20598e5473094e0e38d1f51f1cf4dfff'
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-80967.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-80967'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2532200'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-80967'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-80967'
  - url: >-
      https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-80967.mbox
tags:
  - cve.org
  - csaf
  - vex
  - red-hat
  - score-dispute
epss: 0.00185
epssPercentile: 0.08015
scores:
  cna: 8.4
  vendor: 5.5
ingestedAt: '2026-09-14T15:23:07.455Z'
---

## Overview

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

- `Linux >= 9bef72bdb26e291d6dffb04768741a0e49582666 < 039602d6ddb1febbb0561b30dab04461f78a1319`
- `Linux >= 9bef72bdb26e291d6dffb04768741a0e49582666 < a5f405adb0229c9cf64eb3d695c333c92e3d3d4f`
- `Linux >= 9bef72bdb26e291d6dffb04768741a0e49582666 < ede25b7fea0d7487ee8528bf35dc7b9a1cbcd814`
- `Linux >= 9bef72bdb26e291d6dffb04768741a0e49582666 < c069b3cfd753d6688ea0271c43553631ab38ce10`
- `Linux >= 9bef72bdb26e291d6dffb04768741a0e49582666 < 7ef9ad82d95dd3c74570d80a689a0570fbc7539e`
- `Linux >= 9bef72bdb26e291d6dffb04768741a0e49582666 < 7cf280fbef5db6310e1b32074c8c34d1ba459796`
- `Linux >= 9bef72bdb26e291d6dffb04768741a0e49582666 < 6c97817e20598e5473094e0e38d1f51f1cf4dfff`
- `Linux 3.18`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

## Vendor advisories

- **Red Hat VEX** · Low · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · no fix planned: Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, … · updated 2026-10-17 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-80967.json)