SB2026100740 - Improper input validation in Linux kernel mac80211
Published: October 7, 2026
Security Bulletin ID
SB2026100740
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Improper input validation (CVE-ID: CVE-2026-98332)
CWE-ID: CWE-20 - Improper input validation
CVSSv4: 0 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N]
The vulnerability allows a local user to trigger kernel warnings.
The vulnerability exists due to improper validation of station peer type in the mac80211 TDLS code when handling TDLS operations. A local user can invoke TDLS operations targeting an access point station rather than a TDLS peer to trigger kernel warnings.
The warnings can occur when the access point station is removed, either immediately or later.
Remediation
Install update from vendor's website.