SB2026091791 - Memory corruption in Linux kernel media v4l2-core driver
Published: September 17, 2026
Security Bulletin ID
SB2026091791
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Memory corruption (CVE-ID: CVE-2026-89873)
CWE-ID: CWE-119 - Memory corruption
CVSSv4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a local user to cause an out-of-bounds access.
The vulnerability exists due to improper bounds checking in V4L2 HEVC SPS and EXT SPS RPS control validation when processing user-supplied HEVC controls. A local user can submit controls with excessive reference picture set or picture counts to cause an out-of-bounds access.
Remediation
Install update from vendor's website.