{
  "cveId": "CVE-2021-47024",
  "url": "https://patchblox.com/security/cve/CVE-2021-47024",
  "summary": "CVE-2021-47024 is fixed in linux on 1 platform, first by DEBIAN-CVE-2021-47024, released February 28, 2024. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  vsock/virtio: free queued packets when closing s...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  vsock/virtio: free queued packets when closing socket  As reported by syzbot [1], there is a memory leak while closing the socket. We partially solved this issue with commit ac03046ece2b (\u0022vsock/virtio: free packets during the socket release\u0022), but we forgot to drain the RX queue when the socket is definitely closed by the scheduled work.  To avoid future issues, let\u0027s use the new virtio_transport_remove_sock() to drain the RX queue before removing the socket from the af_vsock lists calling vsock_remove_sock().  [1] https://syzkaller.appspot.com/bug?extid=24452624fc4c571eedd9",
  "published": "2024-02-28T09:15:39Z",
  "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": 0.0025,
  "epssPercentile": 0.164,
  "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-2021-47024",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2021-47024",
      "released": "2024-02-28T09:15:39Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "5.10.38-1",
      "fix": "DEBIAN-CVE-2021-47024",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2021-47024",
      "released": "2024-02-28T09:15:39Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "5.10.38-1",
      "fix": "DEBIAN-CVE-2021-47024",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2021-47024",
      "released": "2024-02-28T09:15:39Z"
    }
  ],
  "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"
  }
}