SB20260928362 - Out-of-bounds write in Linux kernel decoder vdec driver
Published: September 28, 2026 Updated: September 30, 2026
Security Bulletin ID
SB20260928362
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) Out-of-bounds write (CVE-ID: CVE-2026-97579)
CWE-ID: CWE-787 - Out-of-bounds write
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 execute arbitrary code.
The vulnerability exists due to an out-of-bounds write in vdec_av1_slice_setup_tile() when processing AV1 bitstream tile information. A local user can provide crafted AV1 tile column or row counts to write beyond the mi_col_starts[] or mi_row_starts[] array capacity and execute arbitrary code.
Remediation
Install update from vendor's website.