{
  "cveId": "CVE-2025-40089",
  "url": "https://patchblox.com/security/cve/CVE-2025-40089",
  "summary": "CVE-2025-40089 is fixed in linux on 1 platform by DEBIAN-CVE-2025-40089 (version 6.17.6-1), released October 30, 2025. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  cxl/features: Add check for no entries in cxl_fe...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  cxl/features: Add check for no entries in cxl_feature_info  cxl EDAC calls cxl_feature_info() to get the feature information and if the hardware has no Features support, cxlfs may be passed in as NULL.  [   51.957498] BUG: kernel NULL pointer dereference, address: 0000000000000008 [   51.965571] #PF: supervisor read access in kernel mode [   51.971559] #PF: error_code(0x0000) - not-present page [   51.977542] PGD 17e4f6067 P4D 0 [   51.981384] Oops: Oops: 0000 [#1] SMP NOPTI [   51.986300] CPU: 49 UID: 0 PID: 3782 Comm: systemd-udevd Not tainted 6.17.0dj test\u002B #64 PREEMPT(voluntary) [   51.997355] Hardware name: \u003Cremoved\u003E [   52.009790] RIP: 0010:cxl_feature_info\u002B0xa/0x80 [cxl_core]  Add a check for cxlfs before dereferencing it and return -EOPNOTSUPP if there is no cxlfs created due to no hardware support.",
  "published": "2025-10-30T10:15:33Z",
  "severity": "",
  "epss": 0.00184,
  "epssPercentile": 0.08082,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "6.17.6-1",
      "fix": "DEBIAN-CVE-2025-40089",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2025-40089",
      "released": "2025-10-30T10:15:33Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T13:06:02Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}