SB20260917132 - Integer overflow in Linux kernel drm panthor driver
Published: September 17, 2026
Security Bulletin ID
SB20260917132
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) Integer overflow (CVE-ID: CVE-2026-89825)
CWE-ID: CWE-190 - Integer overflow
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 compromise confidentiality, integrity, and availability.
The vulnerability exists due to integer overflow in the Panthor firmware control interface initialization routines when calculating control-interface offsets from firmware-provided strides. A local user can cause offset calculations to wrap and map invalid firmware control interfaces to compromise confidentiality, integrity, and availability.
Remediation
Install update from vendor's website.