CVE-2025-68223

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

Description A flaw exists in the Linux kernel’s DRM/radeon driver related to fence processing. Specifically, the radeon fence process function was unnecessarily called within the is signaled function, potentially leading to a deadlock situation. The issue arises when the signaled() function is invoked with the fence lock in an unknown state, which, for radeon, is also the wait queue lock. Attempting to advance the queue in this scenario can cause a self-deadlock. However, incorrectly returning false from signaled() is acceptable and avoids the deadlock. The fix involves removing the attempt to progress the queue when checking if the fence is signaled.

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