{
  "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-2026-80733",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-80733",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-09-03T08:21:50.136Z",
    "updatedAt": "2026-09-03T08:21:50.136Z",
    "importedAt": "2026-10-24T01:58:30.346Z",
    "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: remove WARN_ON_ONCE() from sk_mc_loop()",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: remove WARN_ON_ONCE() from sk_mc_loop()\n\nsk_mc_loop() can be called for sockets that are neither AF_INET\nnor AF_INET6 (e.g. AF_PACKET sockets when sending packets via raw/packet\nsocket over virtual devices such as VRF or ipvlan).\n\nIn such cases, sk_family is not AF_INET/AF_INET6 and sk_mc_loop() falls\nthrough the switch statement and triggers WARN_ON_ONCE(1).\n\nNon-INET sockets do not support IP_MULTICAST_LOOP or IPV6_MULTICAST_LOOP\noptions, so loopback should default to true without generating a warning.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "f60e5990d9c1424af9dbca60a23ba2a1c7c1ce90",
              "status": "affected",
              "versionType": "git",
              "lessThan": "97133c4d42654578fab95abe47359ebe784dde18"
            },
            {
              "version": "f60e5990d9c1424af9dbca60a23ba2a1c7c1ce90",
              "status": "affected",
              "versionType": "git",
              "lessThan": "f625c742b33dc137c209dd13d1c5f12b1c18d71c"
            },
            {
              "version": "f60e5990d9c1424af9dbca60a23ba2a1c7c1ce90",
              "status": "affected",
              "versionType": "git",
              "lessThan": "ad7fa2f411cb30f63d6725f111be134064cdb718"
            },
            {
              "version": "f60e5990d9c1424af9dbca60a23ba2a1c7c1ce90",
              "status": "affected",
              "versionType": "git",
              "lessThan": "d2adc4e80b29e58b5162ae09f0f657a215806c8c"
            },
            {
              "version": "f60e5990d9c1424af9dbca60a23ba2a1c7c1ce90",
              "status": "affected",
              "versionType": "git",
              "lessThan": "ad7dbb1d14b1b4406eca8ef9478e8de312ba0cfe"
            },
            {
              "version": "f60e5990d9c1424af9dbca60a23ba2a1c7c1ce90",
              "status": "affected",
              "versionType": "git",
              "lessThan": "c8f256dc849205ccb2bd78bd99a3497b972b44e0"
            },
            {
              "version": "f60e5990d9c1424af9dbca60a23ba2a1c7c1ce90",
              "status": "affected",
              "versionType": "git",
              "lessThan": "0d75f2c1d0764efa756ad9c1e078d8c09ea8fc1f"
            },
            {
              "version": "f60e5990d9c1424af9dbca60a23ba2a1c7c1ce90",
              "status": "affected",
              "versionType": "git",
              "lessThan": "b8a39a09ae4eaae04309e1e38ed6a1101d967496"
            },
            {
              "version": "c91f81773cd4bbebfe744e9ab30a7ce093f9b930",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "c8c30b2b17f2133e953850c547e3902c3a3d80e2",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "3fe207e4637a2e792c46a08666aa722f77d7f8f7",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "3.14.40",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "3.15"
            },
            {
              "version": "3.18.13",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "3.19"
            },
            {
              "version": "3.19.6",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "3.20"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "4.0",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "4.0"
            },
            {
              "version": "5.10.265",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.216",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.183",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.152",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.104",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.45",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "7.1.9",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.1.*"
            },
            {
              "version": "7.2",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}