CVE-2026-99151

kernel: kernel: Denial of Service via NULL pointer dereference in AMD display driver

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Severity

Moderate

Red Hat Product Security

5.5

CVSS 3.1

Review impact separately from score.

Published · October 28, 2026

Updated · October 30, 2026

Description

A flaw was found in the Linux kernel's AMD display driver. This flaw allows a local user to cause a Denial of Service (DoS) through a system crash. The vulnerability occurs because the driver fails to properly validate display stream references before allocating or deallocating USB4 bandwidth, leading to a null pointer dereference during display operations.

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-476 · NULL Pointer Dereference