CVE-2026-68383

A flaw was found in the Linux kernel's drm/xe/guc component. The scheduler maintains a pointer to a timeline name, but this name is prematurely freed while other parts of the system, such as scheduler fences, can still reference it. This creates a use-after-free vulnerability, where the system attempts to access memory that has already been released. Such an issue can lead to system instability and crashes, potentially resulting in a denial of service.

This issue affects Intel Xe GuC scheduler. Timeline name pointer freed with exec queue while fences still reference it. Systems without Intel Xe are not affected.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.