{
  "cveId": "CVE-2021-46967",
  "url": "https://patchblox.com/security/cve/CVE-2021-46967",
  "summary": "CVE-2021-46967 is fixed in linux on 1 platform, first by DEBIAN-CVE-2021-46967, 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:  vhost-vdpa: fix vm_flags for virtqueue doorbell...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  vhost-vdpa: fix vm_flags for virtqueue doorbell mapping  The virtqueue doorbell is usually implemented via registeres but we don\u0027t provide the necessary vma-\u003Eflags like VM_PFNMAP. This may cause several issues e.g when userspace tries to map the doorbell via vhost IOTLB, kernel may panic due to the page is not backed by page structure. This patch fixes this by setting the necessary vm_flags. With this patch, try to map doorbell via IOTLB will fail with bad address.",
  "published": "2024-02-27T19:04:07Z",
  "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": 0.00233,
  "epssPercentile": 0.14239,
  "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-2021-46967",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2021-46967",
      "released": "2024-02-27T19:04:07Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "5.10.38-1",
      "fix": "DEBIAN-CVE-2021-46967",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2021-46967",
      "released": "2024-02-27T19:04:07Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "5.10.38-1",
      "fix": "DEBIAN-CVE-2021-46967",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2021-46967",
      "released": "2024-02-27T19:04:07Z"
    }
  ],
  "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"
  }
}