SB2026040651 - Improper resource shutdown or release in Linux kernel drm xe driver

Description

This security bulletin contains information about 1 vulnerability.

1) Improper resource shutdown or release (CVE-ID: CVE-2026-31390)

CWE-ID: CWE-404 - Improper Resource Shutdown or Release

CVSSv4: 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/E:U/U:Clear

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

The vulnerability exists due to improper resource shutdown or release in xe_vm_madvise_ioctl when handling ioctl arguments. A local user can supply invalid arguments that trigger the error path to cause a denial of service.

The issue occurs when validation in check_bo_args_are_sane() fails and allocated resources are not properly freed.

Remediation

Install update from vendor's website.

References

• https://git.kernel.org/stable/c/0cfe9c4838f1147713f6b5c02094cd4dc0c598fa
• https://git.kernel.org/stable/c/1c87b48a0ff040723f84a67b32892af7e6a3634f
• https://git.kernel.org/stable/c/c3aa7b837920c844d5ae0dd3dbaeb465a461de40