CVE-2026-63863

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description An unbalanced lock and unlock sequence exists within the drm gpusvm scan mm() function. Specifically, the drm gpusvm notifier unlock() function is called under an error handling label (err free), but a jump to this label can occur before the drm gpusvm notifier lock() function is ever called, leading to an invalid unlock attempt of the gpusvm->notifier lock variable.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.