{
  "schemaVersion": 1,
  "attribution": [
    {
      "source": "CISA Known Exploited Vulnerabilities",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "licence": "US government work"
    },
    {
      "source": "GitHub Advisory Database",
      "url": "https://github.com/advisories",
      "licence": "CC BY 4.0"
    },
    {
      "source": "Have I Been Pwned",
      "url": "https://haveibeenpwned.com/",
      "licence": "CC BY 4.0"
    },
    {
      "source": "CVE Program (CVE records)",
      "url": "https://www.cve.org/Legal/TermsOfUse",
      "licence": "CVE Terms of Use",
      "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.",
      "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss/",
      "licence": "free to use; FIRST requests attribution"
    }
  ],
  "record": {
    "id": "CVE-2021-47024",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2021-47024",
    "idYear": 2021,
    "status": "PUBLISHED",
    "publishedAt": "2024-02-28T08:13:36.489Z",
    "updatedAt": "2026-05-23T15:19:08.243Z",
    "importedAt": "2026-10-24T01:56:36.661Z",
    "snapshot": {
      "id": "cve_2026-10-24_midnight_baseline",
      "at": "2026-10-24T00:00:00.000Z",
      "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z"
    },
    "facts": {
      "title": "vsock/virtio: free queued packets when closing socket",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nvsock/virtio: free queued packets when closing socket\n\nAs reported by syzbot [1], there is a memory leak while closing the\nsocket. We partially solved this issue with commit ac03046ece2b\n(\"vsock/virtio: free packets during the socket release\"), but we\nforgot to drain the RX queue when the socket is definitely closed by\nthe scheduled work.\n\nTo avoid future issues, let's use the new virtio_transport_remove_sock()\nto drain the RX queue before removing the socket from the af_vsock lists\ncalling vsock_remove_sock().\n\n[1] https://syzkaller.appspot.com/bug?extid=24452624fc4c571eedd9",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "ac03046ece2b158ebd204dfc4896fd9f39f0e6c8",
              "status": "affected",
              "versionType": "git",
              "lessThan": "b605673b523fe33abeafb2136759bcbc9c1e6ebf"
            },
            {
              "version": "ac03046ece2b158ebd204dfc4896fd9f39f0e6c8",
              "status": "affected",
              "versionType": "git",
              "lessThan": "27691665145e74a45034a9dccf1150cf1894763a"
            },
            {
              "version": "ac03046ece2b158ebd204dfc4896fd9f39f0e6c8",
              "status": "affected",
              "versionType": "git",
              "lessThan": "37c38674ef2f8d7e8629e5d433c37d6c1273d16b"
            },
            {
              "version": "ac03046ece2b158ebd204dfc4896fd9f39f0e6c8",
              "status": "affected",
              "versionType": "git",
              "lessThan": "8432b8114957235f42e070a16118a7f750de9d39"
            },
            {
              "version": "4ea082cd3c400cd5bb36a7beb7e441bf3e29350d",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "4e539fa2dec4db3405e47002f2878aa4a99eb68b",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "4af8a327aeba102aaa9b78f3451f725bc590b237",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "51adb8ebe8c1d80528fc2ea863cfea9d32d2c52b",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "7d29c9ad0ed525c1b10e29cfca4fb1eece1e93fb",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "4.9.179",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "4.10"
            },
            {
              "version": "4.14.122",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "4.15"
            },
            {
              "version": "4.19.46",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "4.20"
            },
            {
              "version": "5.0.19",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.1"
            },
            {
              "version": "5.1.5",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.2"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "5.2",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "5.2"
            },
            {
              "version": "5.10.37",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.11.21",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.11.*"
            },
            {
              "version": "5.12.4",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.12.*"
            },
            {
              "version": "5.13",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}