CVE-2025-68223

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
16/12/2025
Last modified:
18/12/2025

Description

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> drm/radeon: delete radeon_fence_process in is_signaled, no deadlock<br /> <br /> Delete the attempt to progress the queue when checking if fence is<br /> signaled. This avoids deadlock.<br /> <br /> dma-fence_ops::signaled can be called with the fence lock in unknown<br /> state. For radeon, the fence lock is also the wait queue lock. This can<br /> cause a self deadlock when signaled() tries to make forward progress on<br /> the wait queue. But advancing the queue is unneeded because incorrectly<br /> returning false from signaled() is perfectly acceptable.<br /> <br /> (cherry picked from commit 527ba26e50ec2ca2be9c7c82f3ad42998a75d0db)

Impact