FKIE_CVE-2025-68223

Vulnerability from fkie_nvd - Published: 2025-12-16 14:15 - Updated: 2025-12-18 15:08
Severity ?
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)
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/73bc12d6a547f9571ce4393acfd73c004e2df9e5
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/7e3e9b3a44c23c8eac86a41308c05077d6d30f41
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9eb00b5f5697bd56baa3222c7a1426fa15bacfb5
Impacted products
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{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/radeon: delete radeon_fence_process in is_signaled, no deadlock\n\nDelete the attempt to progress the queue when checking if fence is\nsignaled. This avoids deadlock.\n\ndma-fence_ops::signaled can be called with the fence lock in unknown\nstate. For radeon, the fence lock is also the wait queue lock. This can\ncause a self deadlock when signaled() tries to make forward progress on\nthe wait queue. But advancing the queue is unneeded because incorrectly\nreturning false from signaled() is perfectly acceptable.\n\n(cherry picked from commit 527ba26e50ec2ca2be9c7c82f3ad42998a75d0db)"
    }
  ],
  "id": "CVE-2025-68223",
  "lastModified": "2025-12-18T15:08:06.237",
  "metrics": {},
  "published": "2025-12-16T14:15:55.630",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/73bc12d6a547f9571ce4393acfd73c004e2df9e5"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/7e3e9b3a44c23c8eac86a41308c05077d6d30f41"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/9eb00b5f5697bd56baa3222c7a1426fa15bacfb5"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}


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