{
  "affected": [
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:12",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "6.1.180-1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:13",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "6.12.100-1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:14",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "7.1.5-1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "In the Linux kernel, the following vulnerability has been resolved:  fs/ntfs3: add bounds check to run_get_highest_vcn()  run_get_highest_vcn() parses a packed NTFS mapping-pairs buffer without any length bound, relying solely on a 0x00 terminator to stop.  A crafted $LogFile UpdateMappingPairs record whose embedded attribute contains mapping-pairs runs without a terminator causes the function to read past the slab allocation, triggering a KASAN slab-out-of-bounds read on mount.  The sibling function run_unpack() received an analogous bounds-check in commit b62567bca474 (\"ntfs3: add buffer boundary checks to run_unpack()\"), but run_get_highest_vcn() was missed.  Take a run_buf_size parameter and reject any run header whose payload would extend past the buffer end, mirroring the pattern used by run_unpack().  The caller in fslog.c passes the remaining attribute bytes after the mapping-pairs offset.  KASAN report (on mainline v7.1 merge window HEAD):    BUG: KASAN: slab-out-of-bounds in run_get_highest_vcn+0x3c0/0x410   Read of size 1 at addr ffff88800e2d5400 by task mount/72   Call Trace:    run_get_highest_vcn+0x3c0/0x410    do_action.isra.0+0x3ba8/0x7b50    log_replay+0x9ddd/0x10200    ntfs_loadlog_and_replay+0x4ad/0x610    ntfs_fill_super+0x214a/0x4540",
  "id": "DEBIAN-CVE-2026-72478",
  "modified": "2026-09-14T16:47:35.739930281Z",
  "published": "2026-08-15T06:22:21.960Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://security-tracker.debian.org/tracker/CVE-2026-72478"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "upstream": [
    "CVE-2026-72478"
  ]
}