ntfs: Fix panic about slab-out-of-bounds caused by ntfs_listxattr()

{
  "id": "dd4036ea89a6d6cf9831ad445ffb0555ee632e225e11301702468f477c2ff698",
  "url": "https://osv.dev/vulnerability/CVE-2023-53420",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "ntfs: Fix panic about slab-out-of-bounds caused by ntfs_listxattr()",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: ntfs: Fix panic about slab-out-of-bounds caused by ntfs_listxattr() Here is a BUG report from syzbot: BUG: KASAN: slab-out-of-bounds in ntfs_list_ea fs/ntfs3/xattr.c:191 [inline] BUG: KASAN: slab-out-of-bounds in ntfs_listxattr+0x401/0x570 fs/ntfs3/xattr.c:710 Read of size 1 at addr ffff888021acaf3d by task syz-executor128/3632 Call Trace: ntfs_list_ea fs/ntfs3/xattr.c:191 [inline] ntfs_listxattr+0x401/0x570 fs/ntfs3/xattr.c:710 vfs_listxattr fs/xattr.c:457 [inline] listxattr+0x293/0x2d0 fs/xattr.c:804 Fix the logic of ea_all iteration. When the ea->name_len is 0, return immediately, or Add2Ptr() would visit invalid memory in the next loop. [almaz.alexandrovich@paragon-software.com: lines of the patch have changed]",
    "evidence": "osv:CVE-2023-53420",
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    "structured": {
      "id": "CVE-2023-53420",
      "aliases": [
        "CVE-2023-53420"
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      "metrics": [
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          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H"
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      "modified": "2026-10-28T02:30:53.093063165Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/3c675ddffb17a8b1e32efad5c983254af18b12c2",
        "https://git.kernel.org/stable/c/721b75ea2dfce53a8890dff92ae01afca8e74f88",
        "https://git.kernel.org/stable/c/c86a2517df6c9304db8fb12b77136ec7a5d85994",
        "https://git.kernel.org/stable/c/f3380d895e28a32632eb3609f5bd515adee4e5a1",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53420.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2023-53420",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
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    "severity_evidence": "/severity/0/score"
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  "source_id": "core-osv",
  "document_id": 521537,
  "published_at": "2025-09-18T16:04:03.754+00:00"
}