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)



