SB20260917133 - Integer overflow in Linux kernel drm panthor driver
Published: September 17, 2026
Security Bulletin ID
SB20260917133
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Integer overflow (CVE-ID: CVE-2026-89826)
CWE-ID: CWE-190 - Integer overflow
CVSSv4: 6.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a local user to disclose sensitive information or cause a denial of service.
The vulnerability exists due to integer overflow and improper bounds checking in panthor_fw_read_build_info() when processing firmware build metadata. A local user can supply a firmware image containing crafted metadata values to disclose sensitive information or cause a denial of service.
Remediation
Install update from vendor's website.