linux: In the Linux kernel, the following vulnerability has been resolved: drm/gud: fix NULL fb and crtc dereferences on US...
CVE-2026-23039 is fixed in linux on 1 platform by DEBIAN-CVE-2026-23039 (version 6.18.8-1), released January 31, 2026. It is not reported as exploited. Patch Radar priority: Routine.
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| linux · Debian 14 | 6.18.8-1 | DEBIAN-CVE-2026-23039 | Jan 31, 2026 |
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