{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2026-80836",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2026-80836"
  ],
  "published": "2026-09-04T15:53:40Z",
  "summary": "crypto: virtio - bound the akcipher result length",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: virtio - bound the akcipher result length\n\nvirtio_crypto_dataq_akcipher_callback() sets the result length from the\ndevice-reported response length without bounding it to the destination\nbuffer, which was allocated for the original request length.\nsg_copy_from_buffer() then reads that many bytes from the destination\nbuffer; a backend reporting a larger length over-reads adjacent kernel\nheap into the caller's scatterlist (an out-of-bounds read).\n\nClamp the reported length to the originally requested destination length.\nA conforming device reports no more than that, so valid results are\nunaffected.",
  "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": null,
            "compiled_filter": false
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-80836"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/bd33cb19bcb432a4dd5e8f50be5e2547af1e9f78"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/12c4f29e97f31b013f77ad65ba7daeb02aaa6abe"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/5545de5050cbc3594506d74f2c392b0716cf8bca"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/3fda114a42f1510a4ec8a0b17a0cfc997952ccc2"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/1f9f877b1ef1fbd4ee95571cddf39c8002cee252"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/f77a956f6a19f9463ef1527c9d0cda50dded6b92"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-10-03T11:04:09Z"
  }
}