{
  "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-2021-47295",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2021-47295",
    "idYear": 2021,
    "status": "PUBLISHED",
    "publishedAt": "2024-05-21T14:35:18.696Z",
    "updatedAt": "2026-05-11T13:51:43.603Z",
    "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": "net: sched: fix memory leak in tcindex_partial_destroy_work",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: sched: fix memory leak in tcindex_partial_destroy_work\n\nSyzbot reported memory leak in tcindex_set_parms(). The problem was in\nnon-freed perfect hash in tcindex_partial_destroy_work().\n\nIn tcindex_set_parms() new tcindex_data is allocated and some fields from\nold one are copied to new one, but not the perfect hash. Since\ntcindex_partial_destroy_work() is the destroy function for old\ntcindex_data, we need to free perfect hash to avoid memory leak.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "331b72922c5f58d48fd5500acadc91777cc31970",
              "status": "affected",
              "versionType": "git",
              "lessThan": "53af9c793f644d5841d84d8e0ad83bd7ab47f3e0"
            },
            {
              "version": "331b72922c5f58d48fd5500acadc91777cc31970",
              "status": "affected",
              "versionType": "git",
              "lessThan": "01d0d2b8b4e3cf2110baba9371c0c3d04ad5c77b"
            },
            {
              "version": "331b72922c5f58d48fd5500acadc91777cc31970",
              "status": "affected",
              "versionType": "git",
              "lessThan": "8d7924ce85bae64e7a67c366c7c50840f49f3a62"
            },
            {
              "version": "331b72922c5f58d48fd5500acadc91777cc31970",
              "status": "affected",
              "versionType": "git",
              "lessThan": "7a6fb69bbcb21e9ce13bdf18c008c268874f0480"
            },
            {
              "version": "331b72922c5f58d48fd5500acadc91777cc31970",
              "status": "affected",
              "versionType": "git",
              "lessThan": "8e9662fde6d63c78eb1350f6167f64c9d71a865b"
            },
            {
              "version": "331b72922c5f58d48fd5500acadc91777cc31970",
              "status": "affected",
              "versionType": "git",
              "lessThan": "18c3fa7a7fdbb4d21dafc8a7710ae2c1680930f6"
            },
            {
              "version": "331b72922c5f58d48fd5500acadc91777cc31970",
              "status": "affected",
              "versionType": "git",
              "lessThan": "cac71d27745f92ee13f0ecc668ffe151a4a9c9b1"
            },
            {
              "version": "331b72922c5f58d48fd5500acadc91777cc31970",
              "status": "affected",
              "versionType": "git",
              "lessThan": "f5051bcece50140abd1a11a2d36dc3ec5484fc32"
            },
            {
              "version": "331b72922c5f58d48fd5500acadc91777cc31970",
              "status": "affected",
              "versionType": "git",
              "lessThan": "7c183dc0af472dec33d2c0786a5e356baa8cad19"
            },
            {
              "version": "331b72922c5f58d48fd5500acadc91777cc31970",
              "status": "affected",
              "versionType": "git",
              "lessThan": "3abebc503a5148072052c229c6b04b329a420ecd"
            },
            {
              "version": "331b72922c5f58d48fd5500acadc91777cc31970",
              "status": "affected",
              "versionType": "git",
              "lessThan": "372ae77cf11d11fb118cbe2d37def9dd5f826abd"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "3.18",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "3.18"
            },
            {
              "version": "4.14.308",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "4.14.*"
            },
            {
              "version": "4.19.276",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "4.19.*"
            },
            {
              "version": "5.4.136",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.4.*"
            },
            {
              "version": "5.4.235",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.4.*"
            },
            {
              "version": "5.10.54",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.10.173",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.13.6",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.13.*"
            },
            {
              "version": "5.15.100",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.18",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.2.5",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.2.*"
            },
            {
              "version": "5.14",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}