{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2026-93236",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2026-93236"
  ],
  "published": "2026-09-24T15:35:30Z",
  "summary": "media: meson: vdec: fix NULL pointer deref in vdec_try_fmt_common",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: meson: vdec: fix NULL pointer deref in vdec_try_fmt_common\n\nWhen VIDIOC_TRY_FMT is called with an unsupported pixel format on the\nOUTPUT queue, vdec_try_fmt_common() falls back to V4L2_PIX_FMT_MPEG2.\nHowever, if a distro has locally patched MPEG2 support out (as it has\nbeen broken for some time) the platform format table does not contain\nMPEG2 so find_format() returns NULL and the subsequent dereference of\nfmt_out->max_width triggers a NULL pointer dereference.\n\nFix this by falling back to the first format in the platform's format\narray instead of hardcoding V4L2_PIX_FMT_MPEG2. This is always valid\nsince every platform defines at least one format.",
  "affected": [
    {
      "package": {
        "ecosystem": "Raspberry Pi OS:12",
        "name": "linux"
      },
      "versions": [
        "1:6.1.47-1+rpt4"
      ],
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-2712",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v6",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v7",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v7l",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v8",
            "binary_version": "1:6.1.47-1+rpt4"
          }
        ]
      },
      "database_specific": {
        "per_version": {
          "1:6.1.47-1+rpt4": {
            "linux_commit": "655fc658a15ae7a6f37103754adb39ba52a9a14e",
            "upstream_version": "6.1.47",
            "assessment": "commit ancestry (strak rule)",
            "upstream_fixed": "6.1.188",
            "compiled_filter": false
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-93236"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/276f28672bb6d5d5feca78db4219c7b5adf1be26"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/c620906fb1b2ad75d408ea9d06040d66952d4a31"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/3839b6be2279fc4f558723f2c0fbfc9c42070958"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/680a89683197cdfe4e03e6fd7755454c647d39c1"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/f2375a308640e401c142c5426d52c3d10e016d25"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/96dafbae77f50bfe2228bcfedcd8652c5e5f08e8"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/d61ba609c3226af3c84268ba606ea06ee63e511b"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/20aa934ace6917262ff579a73ec018d06a7bad1c"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-09-24T15:35:30Z"
  }
}