{
  "cveId": "CVE-2026-53029",
  "url": "https://patchblox.com/security/cve/CVE-2026-53029",
  "summary": "CVE-2026-53029 is fixed in linux on 1 platform by DEBIAN-CVE-2026-53029 (version 7.0.10-1), released June 25, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  fs/ntfs3: prevent uninitialized lcn caused by ze...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  fs/ntfs3: prevent uninitialized lcn caused by zero len  syzbot reported a uninit-value in ntfs_iomap_begin [1].  Since runs was not touched yet, run_lookup_entry() immediately fails and returns false, which makes the value of \u0022*len\u0022 0. Simultaneously, the new value and err value are also 0, causing the logic in attr_data_get_block_locked() to jump directly to ok, ultimately resulting in *lcn being triggered before it is set [1].  In ntfs_iomap_begin(), the check for a 0 value in clen is moved forward to before updating lcn to avoid this [1].  [1] BUG: KMSAN: uninit-value in ntfs_iomap_begin\u002B0x8c0/0x1460 fs/ntfs3/inode.c:825  ntfs_iomap_begin\u002B0x8c0/0x1460 fs/ntfs3/inode.c:825  iomap_iter\u002B0x9b7/0x1540 fs/iomap/iter.c:110  Local variable lcn created at:  ntfs_iomap_begin\u002B0x15d/0x1460 fs/ntfs3/inode.c:786",
  "published": "2026-06-24T17:17:14Z",
  "severity": "medium",
  "cvss": 5.5,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
  "epss": 0.00143,
  "epssPercentile": 0.03657,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "7.0.10-1",
      "fix": "DEBIAN-CVE-2026-53029",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-53029",
      "released": "2026-06-25T17:23:13Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T07:25:28Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}