SB20260918310 - Race condition in Linux kernel mt76 mt7996 driver
Published: September 18, 2026
Security Bulletin ID
SB20260918310
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Race condition (CVE-ID: CVE-2026-90367)
CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
CVSSv4: 5.8 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a local user to cause descriptor or token corruption.
The vulnerability exists due to a race condition in mt7996_mac_reset_work() when an L1 SER races a channel switch. A local user can trigger an L1 SER while a channel switch is in progress to cause descriptor or token corruption.
Remediation
Install update from vendor's website.