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CVE-2026-68382

kernel: drm/xe/guc: Hold device ref until queue teardown completes

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Severity

Moderate

Red Hat Product Security

5.5

CVSS 3.1

Review impact separately from score.

Published · August 10, 2026

Updated · August 31, 2026

Description

A flaw was found in the Linux kernel's drm/xe/guc module. This vulnerability arises from a race condition during the asynchronous destruction of the Graphics micro-controller (GuC) execution queues. If the device reference is released prematurely, it can lead to a deadlock within the Direct Rendering Manager (DRM) cleanup process. This deadlock can cause the affected system or component to become unresponsive, resulting in a Denial of Service (DoS).

Statement

This issue affects Intel Xe graphics with GuC submission. Async queue destroy can deadlock when final device put runs from the destroy worker on the same workqueue. Systems without Intel Xe are not affected.

CVSS score applicability

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.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CWE-833 · Deadlock