{
  "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-2021-47442",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2021-47442",
    "idYear": 2021,
    "status": "PUBLISHED",
    "publishedAt": "2024-05-22T06:19:36.228Z",
    "updatedAt": "2026-05-11T13:54:47.112Z",
    "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": "NFC: digital: fix possible memory leak in digital_in_send_sdd_req()",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nNFC: digital: fix possible memory leak in digital_in_send_sdd_req()\n\n'skb' is allocated in digital_in_send_sdd_req(), but not free when\ndigital_in_send_cmd() failed, which will cause memory leak. Fix it\nby freeing 'skb' if digital_in_send_cmd() return failed.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "2c66daecc4092e6049673c281b2e6f0d5e59a94c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "74569c78aa84f8c958f1334b465bc530906ec99a"
            },
            {
              "version": "2c66daecc4092e6049673c281b2e6f0d5e59a94c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "88c890b0b9a1fb9fcd01c61ada515e8b636c34f9"
            },
            {
              "version": "2c66daecc4092e6049673c281b2e6f0d5e59a94c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "fcce6e5255474ca33c27dda0cdf9bf5087278873"
            },
            {
              "version": "2c66daecc4092e6049673c281b2e6f0d5e59a94c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "071bdef36391958c89af5fa2172f691b31baa212"
            },
            {
              "version": "2c66daecc4092e6049673c281b2e6f0d5e59a94c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "2bde4aca56db9fe25405d39ddb062531493a65db"
            },
            {
              "version": "2c66daecc4092e6049673c281b2e6f0d5e59a94c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "50cb95487c265187289810addec5093d4fed8329"
            },
            {
              "version": "2c66daecc4092e6049673c281b2e6f0d5e59a94c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "6432d7f1d1c3aa74cfe8f5e3afdf81b786c32e86"
            },
            {
              "version": "2c66daecc4092e6049673c281b2e6f0d5e59a94c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "291c932fc3692e4d211a445ba8aa35663831bac7"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "3.13",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "3.13"
            },
            {
              "version": "4.4.290",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "4.4.*"
            },
            {
              "version": "4.9.288",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "4.9.*"
            },
            {
              "version": "4.14.252",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "4.14.*"
            },
            {
              "version": "4.19.213",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "4.19.*"
            },
            {
              "version": "5.4.155",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.4.*"
            },
            {
              "version": "5.10.75",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.14.14",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.14.*"
            },
            {
              "version": "5.15",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}