{
  "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-2026-80792",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-80792",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-09-04T15:13:04.537Z",
    "updatedAt": "2026-10-19T08:43:45.535Z",
    "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": "ipv6: fix use-after-free in ip6_finish_output2()",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nipv6: fix use-after-free in ip6_finish_output2()\n\nip6_finish_output2() caches a pointer to the IPv6 destination\naddress (daddr) before invoking lwtunnel_xmit().  The LWT-BPF\ntransmit path or other encapsulation operations within\nlwtunnel_xmit() can reallocate the skb head, freeing the memory\nthat daddr points to.  When lwtunnel_xmit() returns\nLWTUNNEL_XMIT_CONTINUE, the function continues to use the stale\ndaddr pointer to compute the nexthop and to look up or create the\nneighbour entry.  This results in a use-after-free read, which can\nleak sensitive kernel data, pollute the neighbour table with\narbitrary values, misdirect traffic, or crash the system.\n\nFix this by re-fetching the IPv6 header and the destination\naddress pointer after lwtunnel_xmit() returns\nLWTUNNEL_XMIT_CONTINUE, ensuring that the subsequent nexthop\ncomputation and neighbour lookup operate on valid memory.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "4132c4ad00ddbf3a175ea0d2c775b662a32f4c85",
              "status": "affected",
              "versionType": "git",
              "lessThan": "75e0a544ebe9af663ef53ca21e9e9185c51fb54a"
            },
            {
              "version": "e415ed3a4b8b246ee5e9d109ff5153efcf96b9f2",
              "status": "affected",
              "versionType": "git",
              "lessThan": "c95f01b78266828a57060d754fcbfc92123a98ed"
            },
            {
              "version": "e415ed3a4b8b246ee5e9d109ff5153efcf96b9f2",
              "status": "affected",
              "versionType": "git",
              "lessThan": "d960881b9312e781a3429aabceb223ce6b7c882f"
            },
            {
              "version": "e415ed3a4b8b246ee5e9d109ff5153efcf96b9f2",
              "status": "affected",
              "versionType": "git",
              "lessThan": "087ee0d914aaae929f1660c9ca878e367655ba1a"
            },
            {
              "version": "e415ed3a4b8b246ee5e9d109ff5153efcf96b9f2",
              "status": "affected",
              "versionType": "git",
              "lessThan": "3c770ac4e6f07af7c7b40c474a3efc61ffed7862"
            },
            {
              "version": "e415ed3a4b8b246ee5e9d109ff5153efcf96b9f2",
              "status": "affected",
              "versionType": "git",
              "lessThan": "3dc98e5fe82d069dd29b124ffbdb679331dfea43"
            },
            {
              "version": "e415ed3a4b8b246ee5e9d109ff5153efcf96b9f2",
              "status": "affected",
              "versionType": "git",
              "lessThan": "99219c82804f266189388e8bf1cf5135d10d5515"
            },
            {
              "version": "e415ed3a4b8b246ee5e9d109ff5153efcf96b9f2",
              "status": "affected",
              "versionType": "git",
              "lessThan": "73a187384a8c8b983c7fea046d716b6752a1e7a3"
            },
            {
              "version": "e415ed3a4b8b246ee5e9d109ff5153efcf96b9f2",
              "status": "affected",
              "versionType": "git",
              "lessThan": "d0d48d999b0eee6bb176ef4e39d9be868fa80f7e"
            },
            {
              "version": "1598154fd28ffa4a55beae1970475fd6776554b6",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "5.10.233",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.10.267"
            },
            {
              "version": "5.4.289",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.5"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "5.15",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "5.15"
            },
            {
              "version": "5.10.267",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.218",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.185",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.154",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.106",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.47",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "7.1.11",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.1.*"
            },
            {
              "version": "7.2.1",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.2.*"
            },
            {
              "version": "7.3",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}