{
  "cveId": "CVE-2022-50232",
  "url": "https://patchblox.com/security/cve/CVE-2022-50232",
  "summary": "CVE-2022-50232 is fixed in linux on 1 platform, first by DEBIAN-CVE-2022-50232, released June 18, 2025. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "arm64: set UXN on swapper page tables",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  arm64: set UXN on swapper page tables  [ This issue was fixed upstream by accident in c3cee924bd85 (\u0022arm64:   head: cover entire kernel image in initial ID map\u0022) as part of a   large refactoring of the arm64 boot flow. This simple fix is therefore   preferred for -stable backporting ]  On a system that implements FEAT_EPAN, read/write access to the idmap is denied because UXN is not set on the swapper PTEs. As a result, idmap_kpti_install_ng_mappings panics the kernel when accessing __idmap_kpti_flag. Fix it by setting UXN on these PTEs.",
  "published": "2025-06-18T11:15:54Z",
  "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": 0.002,
  "epssPercentile": 0.09906,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-50232",
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "5.16.7-1",
      "fix": "DEBIAN-CVE-2022-50232",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-50232",
      "released": "2025-06-18T11:15:54Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "5.16.7-1",
      "fix": "DEBIAN-CVE-2022-50232",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-50232",
      "released": "2025-06-18T11:15:54Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "5.16.7-1",
      "fix": "DEBIAN-CVE-2022-50232",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-50232",
      "released": "2025-06-18T11:15:54Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T00:53:09Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}