{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2024-26590",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2024-26590"
  ],
  "published": "2024-02-22T16:14:14Z",
  "summary": "erofs: fix inconsistent per-file compression format",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nerofs: fix inconsistent per-file compression format\n\nEROFS can select compression algorithms on a per-file basis, and each\nper-file compression algorithm needs to be marked in the on-disk\nsuperblock for initialization.\n\nHowever, syzkaller can generate inconsistent crafted images that use\nan unsupported algorithmtype for specific inodes, e.g. use MicroLZMA\nalgorithmtype even it's not set in `sbi->available_compr_algs`.  This\ncan lead to an unexpected \"BUG: kernel NULL pointer dereference\" if\nthe corresponding decompressor isn't built-in.\n\nFix this by checking against `sbi->available_compr_algs` for each\nm_algorithmformat request.  Incorrect !erofs_sb_has_compr_cfgs preset\nbitmap is now fixed together since it was harmless previously.",
  "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": "6.1.80",
            "compiled_filter": false
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2024-26590"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/47467e04816cb297905c0f09bc2d11ef865942d9"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/823ba1d2106019ddf195287ba53057aee33cf724"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/eed24b816e50c6cd18cbee0ff0d7218c8fced199"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/118a8cf504d7dfa519562d000f423ee3ca75d2c4"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-05-12T04:54:46Z"
  }
}