ALSA: pcxhr: initialize mutexes before requesting threaded IRQ
Priority LOW 38Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Partial Red Hat: 7 without a fix
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat.
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00186 8th percentileScored 2026-11-07
Fix Partial Linux (Linux): 5.10.273, 5.15.221, 6.1.188 +5Red Hat: 7 without a fix
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA Linux (Linux) Fixed in 5.10.273, 5.15.221, 6.1.188, 6.6.157, 6.12.109, 6.18.50, 7.2.4, 7.3
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 10 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 7 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 8 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 9 | Affected | No fix yet: Fix deferred |
| Red Hat OpenShift Container Platform 4 | Affected | No fix yet: Fix deferred |
| Red Hat OpenShift Container Platform 5 | Affected | No fix yet: Fix deferred |
Timeline
- 2026-10-02 Threatist record created from CVE-2026-80967
- 2026-10-03 Alias added: GHSA-gf23-mfwg-9j7j
- 2026-10-18 CISA SSVC decision points changed
- 2026-10-19 Fix available: Linux/[email protected] · CNA
- 2026-10-30 Fix available: Linux/Linux@20a0f80f67a1495a57e5a3ba0fa172a0f919691d, Linux/[email protected] · CNA
- 2026-10-30 1 new reference · CNA
- 2026-10-30 Affected versions changed · Red Hat
References
Other 8
- https://git.kernel.org/stable/c/20a0f80f67a1495a57e5a3ba0fa172a0f919691d
- https://git.kernel.org/stable/c/039602d6ddb1febbb0561b30dab04461f78a1319
- https://git.kernel.org/stable/c/a5f405adb0229c9cf64eb3d695c333c92e3d3d4f
- https://git.kernel.org/stable/c/ede25b7fea0d7487ee8528bf35dc7b9a1cbcd814
- https://git.kernel.org/stable/c/c069b3cfd753d6688ea0271c43553631ab38ce10
- https://git.kernel.org/stable/c/7ef9ad82d95dd3c74570d80a689a0570fbc7539e
- https://git.kernel.org/stable/c/7cf280fbef5db6310e1b32074c8c34d1ba459796
- https://git.kernel.org/stable/c/6c97817e20598e5473094e0e38d1f51f1cf4dfff
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Sources
- CVE-2026-80967 · CVE Program
- CVE-2026-80967 · NVD
- FIRST EPSS
- GHSA-gf23-mfwg-9j7j · GitHub Advisory Database · CC BY 4.0
- CVE-2026-80967 · Red Hat security data · CC BY 4.0
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