{
  "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-2021-47240",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2021-47240",
    "idYear": 2021,
    "status": "PUBLISHED",
    "publishedAt": "2024-05-21T14:19:40.363Z",
    "updatedAt": "2026-08-05T08:46:52.072Z",
    "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: qrtr: fix OOB Read in qrtr_endpoint_post",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: qrtr: fix OOB Read in qrtr_endpoint_post\n\nSyzbot reported slab-out-of-bounds Read in\nqrtr_endpoint_post. The problem was in wrong\n_size_ type:\n\n\tif (len != ALIGN(size, 4) + hdrlen)\n\t\tgoto err;\n\nIf size from qrtr_hdr is 4294967293 (0xfffffffd), the result of\nALIGN(size, 4) will be 0. In case of len == hdrlen and size == 4294967293\nin header this check won't fail and\n\n\tskb_put_data(skb, data + hdrlen, size);\n\nwill read out of bound from data, which is hdrlen allocated block.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "194ccc88297ae78d0803adad83c6dcc369787c9e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "f8111c0d7ed42ede41a3d0d393b104de0730a8a6"
            },
            {
              "version": "194ccc88297ae78d0803adad83c6dcc369787c9e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "26b8d10703a9be45d6097946b2b4011f7dd2c56f"
            },
            {
              "version": "194ccc88297ae78d0803adad83c6dcc369787c9e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "960b08dd36de1e341e3eb43d1c547513e338f4f8"
            },
            {
              "version": "194ccc88297ae78d0803adad83c6dcc369787c9e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "19892ab9c9d838e2e5a7744d36e4bb8b7c3292fe"
            },
            {
              "version": "194ccc88297ae78d0803adad83c6dcc369787c9e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "ad9d24c9429e2159d1e279dc3a83191ccb4daf1d"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "4.15",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "4.15"
            },
            {
              "version": "4.19.196",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "4.19.*"
            },
            {
              "version": "5.4.128",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.4.*"
            },
            {
              "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": "*"
            }
          ]
        }
      ]
    }
  }
}