{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2025-68266",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2025-68266"
  ],
  "published": "2025-12-16T14:47:34Z",
  "summary": "bfs: Reconstruct file type when loading from disk",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nbfs: Reconstruct file type when loading from disk\n\nsyzbot is reporting that S_IFMT bits of inode->i_mode can become bogus when\nthe S_IFMT bits of the 32bits \"mode\" field loaded from disk are corrupted\nor when the 32bits \"attributes\" field loaded from disk are corrupted.\n\nA documentation says that BFS uses only lower 9 bits of the \"mode\" field.\nBut I can't find an explicit explanation that the unused upper 23 bits\n(especially, the S_IFMT bits) are initialized with 0.\n\nTherefore, ignore the S_IFMT bits of the \"mode\" field loaded from disk.\nAlso, verify that the value of the \"attributes\" field loaded from disk is\neither BFS_VREG or BFS_VDIR (because BFS supports only regular files and\nthe root directory).",
  "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": "6.1.160",
            "compiled_filter": false
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2025-68266"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/d0c5ec1f57d8fbb953f166a27d9d32473dc8f3e4"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/aeccd6743ee4fdd1ab8cfcbb5b9a20b613418f6d"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/8f73336b75bd3457b6f9410f2a0601a238f32238"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/a9f626396bfe66f49b743601e862767928237cc0"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/77899444d46162aeb65f229590c26ba266864223"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/a8cb796e7e2cb7971311ba236922f5e7e1be77e6"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/34ab4c75588c07cca12884f2bf6b0347c7a13872"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-05-12T04:54:46Z"
  }
}