FKIE_CVE-2026-31781

Vulnerability from fkie_nvd - Published: 2026-05-01 15:16 - Updated: 2026-05-01 15:24
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/ioc32: stop speculation on the drm_compat_ioctl path The drm compat ioctl path takes a user controlled pointer, and then dereferences it into a table of function pointers, the signature method of spectre problems. Fix this up by calling array_index_nospec() on the index to the function pointer list.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/27ef84bba9b9d7b03418c60fbc6069ea0e87b13c
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/46a60ee8956ef1975f00455f614761c7ecedc09d
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/489f2ef2b908898d01df697dc4fe1476674be640
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/4a41c2b18fc05d30b718d2602cac339eae710b34
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5bb398991f378ef74d90b14a6ea8b61ff96cc03a
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d59c5d8539662d95887b4564f3f72ad38076a2d5
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f0e441be08a2eab10b2d06fccfa267ee599dd6b3
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f8995c2df519f382525ca4bc90553ad2ec611067
Impacted products
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{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/ioc32: stop speculation on the drm_compat_ioctl path\n\nThe drm compat ioctl path takes a user controlled pointer, and then\ndereferences it into a table of function pointers, the signature method\nof spectre problems.  Fix this up by calling array_index_nospec() on the\nindex to the function pointer list."
    }
  ],
  "id": "CVE-2026-31781",
  "lastModified": "2026-05-01T15:24:14.893",
  "metrics": {},
  "published": "2026-05-01T15:16:41.577",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/27ef84bba9b9d7b03418c60fbc6069ea0e87b13c"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/46a60ee8956ef1975f00455f614761c7ecedc09d"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/489f2ef2b908898d01df697dc4fe1476674be640"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/4a41c2b18fc05d30b718d2602cac339eae710b34"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/5bb398991f378ef74d90b14a6ea8b61ff96cc03a"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/d59c5d8539662d95887b4564f3f72ad38076a2d5"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/f0e441be08a2eab10b2d06fccfa267ee599dd6b3"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/f8995c2df519f382525ca4bc90553ad2ec611067"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}


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