CVE-2021-47530

kernel: drm/msm: Fix wait_fence submitqueue leak

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Severity

Low

Red Hat Product Security

5.5

CVSS 3.1

Review impact separately from score.

Published · May 24, 2024

Updated · November 21, 2025

Description

In the Linux kernel, the following vulnerability has been resolved:

drm/msm: Fix wait_fence submitqueue leak

We weren't dropping the submitqueue reference in all paths. In particular, when the fence has already been signalled. Split out a helper to simplify handling this in the various different return paths.

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-911 · Improper Update of Reference Count