CVE-2026-90297
kernel: drm/sun4i: crtc: Propagate layer initialization error
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · September 17, 2026
Updated · October 14, 2026
Description
A flaw was found in the Linux kernel's drm/sun4i display driver. When layer initialization fails in sun4i_crtc_init(), a null pointer is returned instead of an error. Subsequent calls to sun4i_rgb_init() and sun4i_lvds_init() then attempt to dereference this null pointer, leading to a kernel crash. This can result in a Denial of Service (DoS) for the system.
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