CVE-2026-46245
kernel: drm/amd/display: Fix dc_link NULL handling in HPD init
Severity
LowRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · June 3, 2026
Updated · August 1, 2026
Description
A flaw was found in the Linux kernel's AMD GPU display driver. The amdgpu_dm_hpd_init() function, responsible for Hot-Plug Detect (HPD) initialization, may attempt to dereference a null dc_link when handling certain connectors. This unconditional dereference can lead to a system crash, allowing a local attacker to cause a Denial of Service (DoS).
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 · 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-476 · NULL Pointer Dereference