{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2026-98872",
  "modified": "2026-10-24T04:30:01Z",
  "upstream": [
    "CVE-2026-98872"
  ],
  "published": "2026-10-23T11:38:26Z",
  "summary": "freevxfs: don't BUG() on unknown typed-extent type",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nfreevxfs: don't BUG() on unknown typed-extent type\n\nvxfs_bmap_typed() handles four typed-extent types and calls BUG() in\nits default case, so an on-disk typed extent with any other type value\ncrashes the kernel. It is reachable from ioctl(FIBMAP) on a regular\nfile:\n\n  kernel BUG at fs/freevxfs/vxfs_bmap.c:230!\n  RIP: vxfs_bmap_typed fs/freevxfs/vxfs_bmap.c:230 [inline]\n       vxfs_bmap1+0x128a/0x12d0 fs/freevxfs/vxfs_bmap.c:257\n\nReplace the BUG() with WARN_ON_ONCE() and return 0 -- the value\nvxfs_bmap_typed() already returns on failure (and from the DEV4 case\nabove); vxfs_getblk() maps 0 to -EIO, so the ioctl fails cleanly.",
  "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": "6.1.189",
            "compiled_filter": false
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-98872"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/fe40a19d571cbb584eea46038ee919d8712b2d2c"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/500e9d5bf9eff2096a21b7ac25a0a06ca46ab821"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/f1f2d54a576f0e4133b979e545abcfefd439c300"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/7ada9807e37103b41f586d34e3075e1209182b65"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/1284d687d46953fff9c0d969df108114611aca8b"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/405f13d7b270913e06e8e2b4de568985f94ef7d6"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/704d48d81dc41470e108811c32c577ada66192d4"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-10-23T11:38:26Z"
  }
}