SB20260919147 - Improper input validation in Linux kernel drm xe driver
Published: September 19, 2026
Security Bulletin ID
SB20260919147
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Partial DoS
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Improper input validation (CVE-ID: CVE-2026-90064)
CWE-ID: CWE-20 - Improper input validation
CVSSv4: 4.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to improper validation of VM fault mode in the xe_pagefault_asid_to_vm ASID lookup when processing a page fault from a non-fault-mode scratch VM on an already valid VMA. A local user can trigger such a page fault to cause a denial of service.
Remediation
Install update from vendor's website.