CVE-2026-99095

kernel: drm/vc4: drain the hangcheck timer and works on V3D unbind

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Severity

Moderate

Red Hat Product Security

4.1

CVSS 3.1

Review impact separately from score.

Published · October 26, 2026

Updated · October 29, 2026

Description

A flaw was found in the Linux kernel's VideoCore IV (vc4) graphics driver. This vulnerability can result in a Denial of Service (DoS) due to improper cleanup during device teardown. Active timers and queued background tasks are not stopped before device memory structures are released. A local user could exploit this condition during device unbinding to trigger invalid memory access, causing the system to crash.

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 · 4.1
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H

CWE-476 · NULL Pointer Dereference