CVE-2026-23467
kernel: drm/i915/dmc: Fix an unlikely NULL pointer deference at probe
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · April 3, 2026
Updated · October 29, 2026
Description
A flaw was found in the Linux kernel's drm/i915/dmc driver. Under specific, unlikely conditions during system startup, an uninitialized component can be accessed, leading to a null pointer dereference. This can be triggered if the Display Controller 6 (DC6) hardware state is unintentionally enabled at boot. A local attacker could potentially exploit this vulnerability to cause a system crash, resulting in 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