{
  "cveId": "CVE-2021-46953",
  "url": "https://patchblox.com/security/cve/CVE-2021-46953",
  "summary": "CVE-2021-46953 is fixed in linux on 1 platform, first by DEBIAN-CVE-2021-46953, released February 27, 2024. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  ACPI: GTDT: Don\u0027t corrupt interrupt mappings on...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  ACPI: GTDT: Don\u0027t corrupt interrupt mappings on watchdow probe failure  When failing the driver probe because of invalid firmware properties, the GTDT driver unmaps the interrupt that it mapped earlier.  However, it never checks whether the mapping of the interrupt actially succeeded. Even more, should the firmware report an illegal interrupt number that overlaps with the GIC SGI range, this can result in an IPI being unmapped, and subsequent fireworks (as reported by Dann Frazier).  Rework the driver to have a slightly saner behaviour and actually check whether the interrupt has been mapped before unmapping things.",
  "published": "2024-02-27T19:04:06Z",
  "severity": "medium",
  "cvss": 6.7,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
  "epss": 0.00241,
  "epssPercentile": 0.15348,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "5.10.38-1",
      "fix": "DEBIAN-CVE-2021-46953",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2021-46953",
      "released": "2024-02-27T19:04:06Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "5.10.38-1",
      "fix": "DEBIAN-CVE-2021-46953",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2021-46953",
      "released": "2024-02-27T19:04:06Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "5.10.38-1",
      "fix": "DEBIAN-CVE-2021-46953",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2021-46953",
      "released": "2024-02-27T19:04:06Z"
    }
  ],
  "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"
  }
}