SB20260816108 - Memory leak in Linux kernel video fbdev driver
Published: August 16, 2026
Security Bulletin ID
SB20260816108
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-2026-72273)
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 efifb_probe() in the efifb framebuffer driver when processing option strings returned by fb_get_options(). A local user can trigger the vulnerable code path to cause a denial of service.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/475383daf5f855f5b2c3a9aa801f69b69a81799e
- https://git.kernel.org/stable/c/5276e3f75ddb51f980a8903f4b39e73cf42415e5
- https://git.kernel.org/stable/c/9b6eaf101656958397a6012bf43f6e2e42c9e5cb
- https://git.kernel.org/stable/c/fafb2e08741b20027cee77918816de29a32d6fd6
- https://git.kernel.org/stable/c/febb5b4f67ace78d6b6862cc3c853b64710afb6c