{
  "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-2021-47177",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2021-47177",
    "idYear": 2021,
    "status": "PUBLISHED",
    "publishedAt": "2024-03-25T09:16:27.371Z",
    "updatedAt": "2026-05-11T13:49:28.057Z",
    "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": "iommu/vt-d: Fix sysfs leak in alloc_iommu()",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\niommu/vt-d: Fix sysfs leak in alloc_iommu()\n\niommu_device_sysfs_add() is called before, so is has to be cleaned on subsequent\nerrors.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "39ab9555c24110671f8dc671311a26e5c985b592",
              "status": "affected",
              "versionType": "git",
              "lessThan": "22da9f4978381a99f1abaeaf6c9b83be6ab5ddd8"
            },
            {
              "version": "39ab9555c24110671f8dc671311a26e5c985b592",
              "status": "affected",
              "versionType": "git",
              "lessThan": "2ec5e9bb6b0560c90d315559c28a99723c80b996"
            },
            {
              "version": "39ab9555c24110671f8dc671311a26e5c985b592",
              "status": "affected",
              "versionType": "git",
              "lessThan": "044bbe8b92ab4e542de7f6c93c88ea65cccd8e29"
            },
            {
              "version": "39ab9555c24110671f8dc671311a26e5c985b592",
              "status": "affected",
              "versionType": "git",
              "lessThan": "f01134321d04f47c718bb41b799bcdeda27873d2"
            },
            {
              "version": "39ab9555c24110671f8dc671311a26e5c985b592",
              "status": "affected",
              "versionType": "git",
              "lessThan": "ca466561eef36d1ec657673e3944eb6340bddb5b"
            },
            {
              "version": "39ab9555c24110671f8dc671311a26e5c985b592",
              "status": "affected",
              "versionType": "git",
              "lessThan": "0ee74d5a48635c848c20f152d0d488bf84641304"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "4.11",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "4.11"
            },
            {
              "version": "4.14.235",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "4.14.*"
            },
            {
              "version": "4.19.193",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "4.19.*"
            },
            {
              "version": "5.4.124",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.4.*"
            },
            {
              "version": "5.10.42",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.12.9",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.12.*"
            },
            {
              "version": "5.13",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}