{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2024-53234",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2024-53234"
  ],
  "published": "2024-12-27T13:53:01Z",
  "summary": "erofs: handle NONHEAD !delta[1] lclusters gracefully",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nerofs: handle NONHEAD !delta[1] lclusters gracefully\n\nsyzbot reported a WARNING in iomap_iter_done:\n iomap_fiemap+0x73b/0x9b0 fs/iomap/fiemap.c:80\n ioctl_fiemap fs/ioctl.c:220 [inline]\n\nGenerally, NONHEAD lclusters won't have delta[1]==0, except for crafted\nimages and filesystems created by pre-1.0 mkfs versions.\n\nPreviously, it would immediately bail out if delta[1]==0, which led to\ninadequate decompressed lengths (thus FIEMAP is impacted).  Treat it as\ndelta[1]=1 to work around these legacy mkfs versions.\n\n`lclusterbits > 14` is illegal for compact indexes, error out too.",
  "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": "6.1.127",
            "compiled_filter": false
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2024-53234"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/75a0a6dde803e7a3af700da8da9a361b49f69eba"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/f466641debcbea8bdf78d1b63a6270aadf9301bf"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/480c6c7b55aeacac800bc2a0d321ff53273045e5"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/daaf68fef4b2ff97928227630021d37b27a96655"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/0bc8061ffc733a0a246b8689b2d32a3e9204f43c"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-05-24T06:48:58Z"
  }
}