{
  "cveId": "CVE-2023-53337",
  "url": "https://patchblox.com/security/cve/CVE-2023-53337",
  "summary": "CVE-2023-53337 is fixed in linux on 1 platform, first by DEBIAN-CVE-2023-53337, released September 17, 2025. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  nilfs2: do not write dirty data after degenerati...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  nilfs2: do not write dirty data after degenerating to read-only  According to syzbot\u0027s report, mark_buffer_dirty() called from nilfs_segctor_do_construct() outputs a warning with some patterns after nilfs2 detects metadata corruption and degrades to read-only mode.  After such read-only degeneration, page cache data may be cleared through nilfs_clear_dirty_page() which may also clear the uptodate flag for their buffer heads.  However, even after the degeneration, log writes are still performed by unmount processing etc., which causes mark_buffer_dirty() to be called for buffer heads without the \u0022uptodate\u0022 flag and causes the warning.  Since any writes should not be done to a read-only file system in the first place, this fixes the warning in mark_buffer_dirty() by letting nilfs_segctor_do_construct() abort early if in read-only mode.  This also changes the retry check of nilfs_segctor_write_out() to avoid unnecessary log write retries if it detects -EROFS that nilfs_segctor_do_construct() returned.",
  "published": "2025-09-17T15:15:36Z",
  "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": 0.00207,
  "epssPercentile": 0.10913,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "6.1.37-1",
      "fix": "DEBIAN-CVE-2023-53337",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-53337",
      "released": "2025-09-17T15:15:36Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "6.3.7-1",
      "fix": "DEBIAN-CVE-2023-53337",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-53337",
      "released": "2025-09-17T15:15:36Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "6.3.7-1",
      "fix": "DEBIAN-CVE-2023-53337",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-53337",
      "released": "2025-09-17T15:15:36Z"
    }
  ],
  "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"
  }
}