{
  "cveId": "CVE-2026-72478",
  "url": "https://patchblox.com/security/cve/CVE-2026-72478",
  "summary": "CVE-2026-72478 is fixed in 56 products on 1 platform, first by DEBIAN-CVE-2026-72478, released August 15, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  fs/ntfs3: add bounds check to run_get_highest_vc...",
  "description": "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 (\u0022ntfs3: add buffer boundary checks to run_unpack()\u0022), 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\u002B0x3c0/0x410   Read of size 1 at addr ffff88800e2d5400 by task mount/72   Call Trace:    run_get_highest_vcn\u002B0x3c0/0x410    do_action.isra.0\u002B0x3ba8/0x7b50    log_replay\u002B0x9ddd/0x10200    ntfs_loadlog_and_replay\u002B0x4ad/0x610    ntfs_fill_super\u002B0x214a/0x4540",
  "published": "2026-08-15T06:22:21Z",
  "severity": "high",
  "cvss": 8.4,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
  "epss": 0.00196,
  "epssPercentile": 0.09322,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
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      "fix": "ALAS2023-2026-2058",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-2058",
      "released": "2026-08-17T09:00:00Z"
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      "released": "2026-08-17T09:00:00Z"
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    {
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      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-2057",
      "released": "2026-08-17T09:00:00Z"
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      "fix": "ALAS2023-2026-2071",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-2071",
      "released": "2026-08-31T09:00:00Z"
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      "fix": "ALAS2023-2026-2071",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-2071",
      "released": "2026-08-31T09:00:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T13:31:49Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}