{
  "cveId": "CVE-2023-53804",
  "url": "https://patchblox.com/security/cve/CVE-2023-53804",
  "summary": "CVE-2023-53804 is fixed in linux on 1 platform, first by DEBIAN-CVE-2023-53804, released December 9, 2025. It is not reported as exploited. Patch Radar priority: High.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  nilfs2: fix use-after-free bug of nilfs_root in...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  nilfs2: fix use-after-free bug of nilfs_root in nilfs_evict_inode()  During unmount process of nilfs2, nothing holds nilfs_root structure after nilfs2 detaches its writer in nilfs_detach_log_writer().  However, since nilfs_evict_inode() uses nilfs_root for some cleanup operations, it may cause use-after-free read if inodes are left in \u0022garbage_list\u0022 and released by nilfs_dispose_list() at the end of nilfs_detach_log_writer().  Fix this issue by modifying nilfs_evict_inode() to only clear inode without additional metadata changes that use nilfs_root if the file system is degraded to read-only or the writer is detached.",
  "published": "2025-12-09T01:16:52Z",
  "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": 0.00139,
  "epssPercentile": 0.0329,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "6.1.37-1",
      "fix": "DEBIAN-CVE-2023-53804",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-53804",
      "released": "2025-12-09T01:16:52Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "6.3.7-1",
      "fix": "DEBIAN-CVE-2023-53804",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-53804",
      "released": "2025-12-09T01:16:52Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "6.3.7-1",
      "fix": "DEBIAN-CVE-2023-53804",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-53804",
      "released": "2025-12-09T01:16:52Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T06:59:42Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}