CVE-2026-23420: wifi: wlcore: Fix a locking bug
Published Apr 3, 2026
·Updated
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.
Affected Software
16 affected components
Linux Linux kernel
Linux Linux kernel>=4.19.1<5.10.253
Linux Linux kernel>=5.11<5.15.203
Linux Linux kernel>=5.16<6.1.167
Linux Linux kernel>=6.2<6.6.130
Linux Linux kernel>=6.7<6.12.77
Linux Linux kernel>=6.13<6.18.17
Linux Linux kernel>=6.19<6.19.7
Linux Linux kernel=4.19
Linux Linux kernel=7.0-rc1
Linux Linux kernel=7.0-rc2
Linux Linux kernel=7.0-rc3
Linux Linux kernel=7.0-rc4
Linux Linux kernel=7.0-rc5
Linux Linux kernel=7.0-rc6
Linux Linux kernel=7.0-rc7
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Compensating control
Ensure wl->mutex is locked before it is unlocked in wifi: wlcore (fix locking bug: lock wl->mutex prior to unlocking it).
Event History
Apr 3, 2026
CVE Published
via MITRE·01:24 PM
Data Sourced
via MITRE·01:24 PM
Description
Data Sourced
via NVD·02:16 PM
RemedyDescriptionSeverityWeaknessAffected Software