Bug 2454770 (CVE-2026-23420)

Summary: CVE-2026-23420 kernel: wifi: wlcore: Fix a locking bug
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in the Linux kernel's wlcore Wi-Fi driver. This vulnerability involves an improper handling of a locking mechanism, specifically the `wl->mutex`. This can lead to system instability or unexpected behavior. The issue was identified by a thread-safety analyzer.
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Description OSIDB Bzimport 2026-04-03 14:01:25 UTC
In the Linux kernel, the following vulnerability has been resolved:

wifi: wlcore: Fix a locking bug

Make sure that wl->mutex is locked before it is unlocked. This has been
detected by the Clang thread-safety analyzer.