CVE-2026-68364

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

Description A system hang occurs during suspend and resume operations while video is playing. This is caused by an ABBA deadlock—a situation where two different contexts are waiting for each other to release locks—occurring when the amdgpu dm ism disable() function is called while holding the dc lock and subsequently waits for ISM delayed work via disable delayed work sync(). Because the work handlers also attempt to acquire the dc lock, a deadlock is triggered if a worker is active during the suspend process.

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