{
  "cveId": "CVE-2023-52444",
  "url": "https://patchblox.com/security/cve/CVE-2023-52444",
  "summary": "CVE-2023-52444 is fixed in linux on 1 platform, first by DEBIAN-CVE-2023-52444, released February 22, 2024. It is not reported as exploited. Patch Radar priority: High.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  f2fs: fix to avoid dirent corruption  As Al repo...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  f2fs: fix to avoid dirent corruption  As Al reported in link[1]:  f2fs_rename() ... \tif (old_dir != new_dir \u0026\u0026 !whiteout) \t\tf2fs_set_link(old_inode, old_dir_entry, \t\t\t\t\told_dir_page, new_dir); \telse \t\tf2fs_put_page(old_dir_page, 0);  You want correct inumber in the \u0022..\u0022 link.  And cross-directory rename does move the source to new parent, even if you\u0027d been asked to leave a whiteout in the old place.  [1] https://lore.kernel.org/all/20231017055040.GN800259@ZenIV/  With below testcase, it may cause dirent corruption, due to it missed to call f2fs_set_link() to update \u0022..\u0022 link to new directory. - mkdir -p dir/foo - renameat2 -w dir/foo bar  [ASSERT] (__chk_dots_dentries:1421)  --\u003E Bad inode number[0x4] for \u0027..\u0027, parent parent ino is [0x3] [FSCK] other corrupted bugs                           [Fail]",
  "published": "2024-02-22T17:15:08Z",
  "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": 0.00245,
  "epssPercentile": 0.15785,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "6.1.76-1",
      "fix": "DEBIAN-CVE-2023-52444",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-52444",
      "released": "2024-02-22T17:15:08Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "6.6.15-1",
      "fix": "DEBIAN-CVE-2023-52444",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-52444",
      "released": "2024-02-22T17:15:08Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "6.6.15-1",
      "fix": "DEBIAN-CVE-2023-52444",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-52444",
      "released": "2024-02-22T17:15:08Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T19:12:23Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}