{
  "cveId": "CVE-2026-72195",
  "url": "https://patchblox.com/security/cve/CVE-2026-72195",
  "summary": "CVE-2026-72195 is fixed in 56 products on 1 platform, first by DEBIAN-CVE-2026-72195, 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: bound attr_off in UpdateResidentValue...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  fs/ntfs3: bound attr_off in UpdateResidentValue against data_off  In do_action()\u0027s UpdateResidentValue case (fslog.c:3307), lrh-\u003Eattr_off and lrh-\u003Eredo_len come from the on-disk LRH. When they satisfy aoff \u002B dlen \u003C attr-\u003Eres.data_off, the assignment  \tattr-\u003Eres.data_size = cpu_to_le32(aoff \u002B dlen - data_off);  underflows to ~4 GiB (e.g. 0xFFFFFFF9 when aoff=0x10, dlen=1, data_off=0x18).  Subsequent code that reads attr-\u003Eres.data_size to walk the resident attribute payload would then read up to 4 GiB past the 1024-byte MFT record allocation.  The existing mi_enum_attr() defense in fs/ntfs3/record.c:287 catches the corrupted data_size on the next attribute walk and fails the mount, but only on the path that walks all attributes.  A read site that picks an attribute by name and reads its data_size without re-validating is not covered. Validate aoff against data_off and asize at the source.  Reproduced under UML\u002BKASAN on mainline 8d90b09e6741 via pr_warn-only probe: with aoff=0x10 and data_off=0x18, the post-assignment data_size is 0xfffffff9 (mount then fails at -22 from mi_enum_attr).  [almaz.alexandrovich@paragon-software.com: clang-formatted the changes]",
  "published": "2026-08-15T06:21:38Z",
  "severity": "high",
  "cvss": 7.8,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
  "epss": 0.00169,
  "epssPercentile": 0.06253,
  "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": "2026-11-09T01:18:40Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}