{
  "cveId": "CVE-2026-80674",
  "url": "https://patchblox.com/security/cve/CVE-2026-80674",
  "summary": "CVE-2026-80674 is fixed in linux on 1 platform by DEBIAN-CVE-2026-80674 (version 7.1.5-1), released August 29, 2026. It is not reported as exploited. Patch Radar priority: Urgent.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  ntfs: validate resident attribute lists and hard...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  ntfs: validate resident attribute lists and harden the validator  A base inode\u0027s $ATTRIBUTE_LIST is sanity-checked by load_attribute_list() only on the non-resident path; ntfs_read_locked_inode() copies a *resident* attribute list into ni-\u003Eattr_list with a plain memcpy() and no validation at all. Every subsequent walk of ni-\u003Eattr_list -- ntfs_external_attr_find(), ntfs_inode_attach_all_extents() and ntfs_attrlist_need() -- then trusts the entries are well-formed and reads attr_list_entry fixed-header fields (lowest_vcn at offset 8, mft_reference at offset 16, and the name) with bounds that assume validation already happened. A crafted resident attribute list therefore reaches those walks unvalidated and can drive out-of-bounds reads of the attribute-list buffer.  load_attribute_list() itself reads ale-\u003Ename_offset (offset 7), ale-\u003Emft_reference (offset 16) and the name length under only an \u0022al \u003C al_start \u002B size\u0022 bound, so its own validation loop can over-read the fixed header of a truncated trailing entry by a few bytes.  Factor the per-entry validation into ntfs_attr_list_entry_is_valid(), which requires each entry\u0027s fixed header (offsetof(struct attr_list_entry, name)) to be in range before any field is dereferenced, that ale-\u003Elength is a multiple of 8 covering the fixed header plus the name, and that the entry is in use and carries a live MFT reference. ntfs_attr_list_is_valid() walks the buffer with it and checks the entries tile it exactly. Use the list validator in load_attribute_list() (replacing the open-coded loop, closing its own over-read) and on the resident path in ntfs_read_locked_inode() (which previously skipped validation entirely); patches 2/3 reuse the per-entry helper at the other two attribute-list walks.",
  "published": "2026-08-28T08:16:52Z",
  "severity": "critical",
  "cvss": 9.8,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
  "epss": 0.00553,
  "epssPercentile": 0.46438,
  "priority": "Urgent",
  "priorityTier": 2,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "7.1.5-1",
      "fix": "DEBIAN-CVE-2026-80674",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-80674",
      "released": "2026-08-29T00:46:20Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T13:06:02Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}