ghsa-c5fv-6w4g-j37w
Vulnerability from github
Published
2025-09-15 15:31
Modified
2025-09-15 15:31
Details

In the Linux kernel, the following vulnerability has been resolved:

fs/ntfs3: don't hold ni_lock when calling truncate_setsize()

syzbot is reporting hung task at do_user_addr_fault() [1], for there is a silent deadlock between PG_locked bit and ni_lock lock.

Since filemap_update_page() calls filemap_read_folio() after calling folio_trylock() which will set PG_locked bit, ntfs_truncate() must not call truncate_setsize() which will wait for PG_locked bit to be cleared when holding ni_lock lock.

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{
  "affected": [],
  "aliases": [
    "CVE-2023-53163"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-09-15T14:15:37Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nfs/ntfs3: don\u0027t hold ni_lock when calling truncate_setsize()\n\nsyzbot is reporting hung task at do_user_addr_fault() [1], for there is\na silent deadlock between PG_locked bit and ni_lock lock.\n\nSince filemap_update_page() calls filemap_read_folio() after calling\nfolio_trylock() which will set PG_locked bit, ntfs_truncate() must not\ncall truncate_setsize() which will wait for PG_locked bit to be cleared\nwhen holding ni_lock lock.",
  "id": "GHSA-c5fv-6w4g-j37w",
  "modified": "2025-09-15T15:31:23Z",
  "published": "2025-09-15T15:31:23Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-53163"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0226635c304cfd5c9db9b78c259cb713819b057e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6bb6b1c6b0c31e36736b87a39dd1cbbd9d5ec22f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/73fee7e1e5ea11b51c51c46e0577a197ca3602cf"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8414983c2e649364d8af29080a0869266b31abb6"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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