CVE-2025-68223
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)
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)
Vendor
Product
CWE
Yayın Tarihi
2025-12-16 14:15:55
Güncelleme
2026-02-26 15:53:03
Source Identifier
416baaa9-dc9f-4396-8d5f-8c081fb06d67
KEV Date Added
-
Kategoriler
Referanslar
https://git.kernel.org/stable/c/73bc12d6a547f9571ce4393acfd73c004e2df9e5
https://git.kernel.org/stable/c/7e3e9b3a44c23c8eac86a41308c05077d6d30f41
https://git.kernel.org/stable/c/9d0ed508a9e2af82951ce7d834f58c139fc2bd9b
https://git.kernel.org/stable/c/9eb00b5f5697bd56baa3222c7a1426fa15bacfb5
https://git.kernel.org/stable/c/d40a72d7e3bad4dfb311ef078f5a57362f088c7f