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CVE-2026-80967

ALSA: pcxhr: initialize mutexes before requesting threaded IRQ

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 5.15.221, 6.1.188, 6.6.157, 6.12.109, 6.18.50, and 1 more
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: no
  • Technical impact: total

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 handler takes that mutex. Initialize the manager locks before request_threaded_irq() so an early interrupt cannot run against uninitialized mutex state during probe.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: no · Technical impact: total

  3. Record last updated

Affected versions

  • Linux Linux

    From 9bef72bdb26e291d6dffb04768741a0e49582666 · fixed in 039602d6ddb1febbb0561b30dab04461f78a1319; From 9bef72bdb26e291d6dffb04768741a0e49582666 · fixed in a5f405adb0229c9cf64eb3d695c333c92e3d3d4f; From 9bef72bdb26e291d6dffb04768741a0e49582666 · fixed in ede25b7fea0d7487ee8528bf35dc7b9a1cbcd814; From 9bef72bdb26e291d6dffb04768741a0e49582666 · fixed in c069b3cfd753d6688ea0271c43553631ab38ce10; From 9bef72bdb26e291d6dffb04768741a0e49582666 · fixed in 7ef9ad82d95dd3c74570d80a689a0570fbc7539e; From 9bef72bdb26e291d6dffb04768741a0e49582666 · fixed in 7cf280fbef5db6310e1b32074c8c34d1ba459796; From 9bef72bdb26e291d6dffb04768741a0e49582666 · fixed in 6c97817e20598e5473094e0e38d1f51f1cf4dfff

  • Linux Linux

    3.18

  • KernelLinux

    From 3.18.0 · fixed in 5.15.221; From 5.16.0 · fixed in 6.1.188; From 6.2.0 · fixed in 6.6.157; From 6.7.0 · fixed in 6.12.109; From 6.13.0 · fixed in 6.18.50; From 6.19.0 · fixed in 7.2.4

References 7

git.kernel.org