SB20260812113 - Memory leak in Linux kernel wireless
Published: August 12, 2026
Security Bulletin ID
SB20260812113
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Partial DoS
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Memory leak (CVE-ID: CVE-2026-68407)
CWE-ID: CWE-401 - Missing release of memory after effective lifetime
CVSSv4: 4.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to a memory leak in nl80211_parse_beacon() when processing beacon data with fewer RNR entries than MBSSID entries. A local user can supply crafted beacon data to cause a denial of service.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/07a95ec2b54774201fdf4ef7ffb0ca2ab19ed29c
- https://git.kernel.org/stable/c/312c8b9d7836ef58e552619a8c19be08b04032bb
- https://git.kernel.org/stable/c/6f919f29e9b75793104709987131b8d910d7800a
- https://git.kernel.org/stable/c/fa9592ef7de11f8c7042315d9bc20e91a97f679e
- https://git.kernel.org/stable/c/fb052a6e2fa866384d8edc237746583ec94c15af