SB20261029197 - Integer overflow in Linux kernel i915 display driver
Published: October 29, 2026
Security Bulletin ID
SB20261029197
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-2026-99118)
CWE-ID: CWE-190 - Integer overflow
CVSSv4: 6.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a local privileged user to potentially cause a denial of service.
The vulnerability exists due to an unchecked integer overflow in the i915 DMC firmware parser when converting firmware payload sizes from dwords to bytes. A local privileged user can provide malformed DMC firmware containing a crafted size value to cause incorrect payload sizing, potentially leading to invalid memory accesses and a denial of service.
Remediation
Install update from vendor's website.