CVE-2026-23039 — drm/gud: fix NULL fb and crtc dereferences on USB disconnect
In the Linux kernel, the following vulnerability has been resolved: drm/gud: fix NULL fb and crtc dereferences on USB disconnect On disconnect drm_atomic_helper_disable_all() …
Published: 2026-01-31 · CVSS: Unscored
In the Linux kernel, the following vulnerability has been resolved: drm/gud: fix NULL fb and crtc dereferences on USB disconnect On disconnect drm_atomic_helper_disable_all() is called which sets both the fb and crtc for a plane to NULL before invoking a commit. This causes a kernel oops on every display disconnect. Add guards for those dereferences.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7