fkie_cve-2025-68732
Vulnerability from fkie_nvd
Published
2025-12-24 11:16
Modified
2025-12-24 11:16
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: gpu: host1x: Fix race in syncpt alloc/free Fix race condition between host1x_syncpt_alloc() and host1x_syncpt_put() by using kref_put_mutex() instead of kref_put() + manual mutex locking. This ensures no thread can acquire the syncpt_mutex after the refcount drops to zero but before syncpt_release acquires it. This prevents races where syncpoints could be allocated while still being cleaned up from a previous release. Remove explicit mutex locking in syncpt_release as kref_put_mutex() handles this atomically.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/4e6e07ce0197aecfb6c4a62862acc93b3efedeb7
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/79197c6007f2afbfd7bcf5b9b80ccabf8483d774
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c7d393267c497502fa737607f435f05dfe6e3d9b
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d138f73ffb0c57ded473c577719e6e551b7b1f27
Impacted products
Vendor Product Version


To clipboard 

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ngpu: host1x: Fix race in syncpt alloc/free\n\nFix race condition between host1x_syncpt_alloc()\nand host1x_syncpt_put() by using kref_put_mutex()\ninstead of kref_put() + manual mutex locking.\n\nThis ensures no thread can acquire the\nsyncpt_mutex after the refcount drops to zero\nbut before syncpt_release acquires it.\nThis prevents races where syncpoints could\nbe allocated while still being cleaned up\nfrom a previous release.\n\nRemove explicit mutex locking in syncpt_release\nas kref_put_mutex() handles this atomically."
    }
  ],
  "id": "CVE-2025-68732",
  "lastModified": "2025-12-24T11:16:02.497",
  "metrics": {},
  "published": "2025-12-24T11:16:02.497",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/4e6e07ce0197aecfb6c4a62862acc93b3efedeb7"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/79197c6007f2afbfd7bcf5b9b80ccabf8483d774"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/c7d393267c497502fa737607f435f05dfe6e3d9b"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/d138f73ffb0c57ded473c577719e6e551b7b1f27"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}


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