{
  "cveId": "CVE-2026-23109",
  "url": "https://patchblox.com/security/cve/CVE-2026-23109",
  "summary": "CVE-2026-23109 is fixed in linux on 1 platform by DEBIAN-CVE-2026-23109 (version 6.18.8-1), released February 4, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  fs/writeback: skip AS_NO_DATA_INTEGRITY mappings...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  fs/writeback: skip AS_NO_DATA_INTEGRITY mappings in wait_sb_inodes()  Above the while() loop in wait_sb_inodes(), we document that we must wait for all pages under writeback for data integrity.  Consequently, if a mapping, like fuse, traditionally does not have data integrity semantics, there is no need to wait at all; we can simply skip these inodes.  This restores fuse back to prior behavior where syncs are no-ops.  This fixes a user regression where if a system is running a faulty fuse server that does not reply to issued write requests, this causes wait_sb_inodes() to wait forever.",
  "published": "2026-02-04T17:16:21Z",
  "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": 0.00133,
  "epssPercentile": 0.02878,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "6.18.8-1",
      "fix": "DEBIAN-CVE-2026-23109",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-23109",
      "released": "2026-02-04T17:16:21Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T01:18:40Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}