{
  "cveId": "CVE-2023-40791",
  "url": "https://patchblox.com/security/cve/CVE-2023-40791",
  "summary": "CVE-2023-40791 is fixed in linux on 1 platform, first by DEBIAN-CVE-2023-40791, released October 16, 2023. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "linux: extract_user_to_sg in lib/scatterlist.c in the Linux kernel before 6.4.12 fails to unpin pages in a certain situation...",
  "description": "extract_user_to_sg in lib/scatterlist.c in the Linux kernel before 6.4.12 fails to unpin pages in a certain situation, as demonstrated by a WARNING for try_grab_page.",
  "published": "2023-10-16T03:15:09Z",
  "severity": "medium",
  "cvss": 6.3,
  "cvssVector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H",
  "epss": 0.00479,
  "epssPercentile": 0.41583,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "6.4.13-1",
      "fix": "DEBIAN-CVE-2023-40791",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-40791",
      "released": "2023-10-16T03:15:09Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "6.4.13-1",
      "fix": "DEBIAN-CVE-2023-40791",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-40791",
      "released": "2023-10-16T03:15:09Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T07:25:28Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}