SB2026090546 - Memory leak in Linux kernel drm xe driver

Description

This security bulletin contains information about 1 vulnerability.

1) Memory leak (CVE-ID: CVE-2026-80903)

CWE-ID: CWE-401 - Missing release of memory after effective lifetime

CVSSv4: 2 [CVSS:4.0/AV:L/AC:L/AT:P/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 cleanup in xe_oa_config_locked() when handling an OA configuration ioctl after OA configuration emission fails. A local user can invoke configuration ioctls that result in repeated unreleased sync entries and fence references to cause a denial of service.

The failure can occur during fence allocation, configuration-buffer allocation, or batch submission before the point of no return.

Remediation

Install update from vendor's website.

References

• https://git.kernel.org/stable/c/027150e24e173a5dffe7f5ab3a6600618f634da2
• https://git.kernel.org/stable/c/8d33c4987cd162527375a3905017ae129ba7c3fe
• https://git.kernel.org/stable/c/948f346fe36e1d02353c3d61b1f6b66c6af91996
• https://git.kernel.org/stable/c/fcf7943b0a38568c547d7b5702de1d8190480616