{
  "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-2021-47241",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2021-47241",
    "idYear": 2021,
    "status": "PUBLISHED",
    "publishedAt": "2024-05-21T14:19:41.009Z",
    "updatedAt": "2026-05-11T13:50:41.416Z",
    "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": "ethtool: strset: fix message length calculation",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nethtool: strset: fix message length calculation\n\nOuter nest for ETHTOOL_A_STRSET_STRINGSETS is not accounted for.\nThis may result in ETHTOOL_MSG_STRSET_GET producing a warning like:\n\n    calculated message payload length (684) not sufficient\n    WARNING: CPU: 0 PID: 30967 at net/ethtool/netlink.c:369 ethnl_default_doit+0x87a/0xa20\n\nand a splat.\n\nAs usually with such warnings three conditions must be met for the warning\nto trigger:\n - there must be no skb size rounding up (e.g. reply_size of 684);\n - string set must be per-device (so that the header gets populated);\n - the device name must be at least 12 characters long.\n\nall in all with current user space it looks like reading priv flags\nis the only place this could potentially happen. Or with syzbot :)",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "71921690f9745fef60a2bad425f30adf8cdc9da0",
              "status": "affected",
              "versionType": "git",
              "lessThan": "fb3a948143688e14e2cfd2a2812877923d0e5e92"
            },
            {
              "version": "71921690f9745fef60a2bad425f30adf8cdc9da0",
              "status": "affected",
              "versionType": "git",
              "lessThan": "cfc7f0e70d649e6d2233fba0d9390b525677d971"
            },
            {
              "version": "71921690f9745fef60a2bad425f30adf8cdc9da0",
              "status": "affected",
              "versionType": "git",
              "lessThan": "e175aef902697826d344ce3a12189329848fe898"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "5.6",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "5.6"
            },
            {
              "version": "5.10.46",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.12.13",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.12.*"
            },
            {
              "version": "5.13",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}