SB20260626145 - Improper control of a resource through its lifetime in Linux kernel drm xe driver

Description

This security bulletin contains information about 1 vulnerability.

1) Improper control of a resource through its lifetime (CVE-ID: CVE-2026-53201)

CWE-ID: CWE-664 - Improper control of a resource through its lifetime

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper state management in the drm/xe exec queue suspend handling when invalidating userptr VMAs during GPU suspend in LR/preempt-fence VM mode. A local user can trigger userptr invalidation while the queue is treated as idle to cause a denial of service.

The issue can result in missed TLB invalidation and page faults during userptr invalidation tests.

Remediation

Install update from vendor's website.

References

• https://git.kernel.org/stable/c/b69b715f48ac7e802c89ed5924795c5b055da91e
• https://git.kernel.org/stable/c/fa7c84726dc217ce0c183926ef9411636c7a2213