CVE-2025-68223

Summary

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

Impact & exploitability

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected products we track (1)

Recommendation

Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.

Official patch: https://git.kernel.org/stable/c/73bc12d6a547f9571ce4393acfd73c004e2df9e5 ↗

Additional information

• NVD record
• https://git.kernel.org/stable/c/73bc12d6a547f9571ce4393acfd73c004e2df9e5Patch
• https://git.kernel.org/stable/c/7e3e9b3a44c23c8eac86a41308c05077d6d30f41Patch
• https://git.kernel.org/stable/c/9d0ed508a9e2af82951ce7d834f58c139fc2bd9bPatch
• https://git.kernel.org/stable/c/9eb00b5f5697bd56baa3222c7a1426fa15bacfb5Patch
• https://git.kernel.org/stable/c/d40a72d7e3bad4dfb311ef078f5a57362f088c7fPatch