CVE-2026-90367

A flaw was found in the Linux kernel's mt7996 Wi-Fi driver. The driver fails to properly hold a mutex, which is a mechanism to prevent simultaneous access to shared resources, when disabling a transmit worker during System Error Recovery (SER). This oversight creates a race condition where a concurrent channel switch operation can lead to the corruption of data transfer descriptors or tokens. The most important consequence is potential system instability or a denial of service, where the system becomes unresponsive or crashes.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.