CVE-2024-40926 Information

Description

In the Linux kernel the following vulnerability has been resolved:

drm/nouveau: don’t attempt to schedule hpd_work on headless cards

If the card doesn’t have display hardware hpd_work and hpd_lock are left uninitialized which causes BUG when attempting to schedule hpd_work on runtime PM resume.

Fix it by adding headless flag to DRM and skip any hpd if it’s set.

Reference

https://git.kernel.org/stable/c/227349998e5740f14d531b0f0d704e66b1ed3c2f https://git.kernel.org/stable/c/b96a225377b6602299a03d2ce3c289b68cd41bb7