Out-of-bounds write in Linux kernel - CVE-2026-97493
Published: September 24, 2026
Vulnerability identifier: #VU152002
CSH Severity: Low
CVSS v4: 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]
CVE-ID: CVE-2026-97493
CWE-ID: CWE-787
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
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.
Affected software
Linux kernel
How to mitigate CVE-2026-97493
Install security update from vendor's repository.
Linux kernel - update to 7.0 rc3