SB20260924116 - Out-of-bounds write in Linux kernel amd amdgpu driver
Published: September 24, 2026
Security Bulletin ID
SB20260924116
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Out-of-bounds write (CVE-ID: CVE-2026-97493)
CWE-ID: CWE-787 - Out-of-bounds write
CVSSv4: 4.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N]
The vulnerability allows a local user to cause an out-of-bounds write.
The vulnerability exists due to improper validation of VBIOS-reported GPIO I2C table sizes in the AMDGPU ATOMBIOS GPIO I2C table handling code when processing a VBIOS GPIO I2C table with a corrupt size field. A local user can provide a VBIOS GPIO I2C table with a corrupt size field to cause an out-of-bounds write.
Remediation
Install update from vendor's website.