{
  "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-2026-98241",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-98241",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-10-06T08:45:11.954Z",
    "updatedAt": "2026-10-19T09:16:12.796Z",
    "importedAt": "2026-10-24T01:58:41.756Z",
    "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: xfrm: use full sockets in local error paths",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nipv6: xfrm: use full sockets in local error paths\n\nxfrm6_local_rxpmtu() and xfrm6_local_error() dereference skb->sk as if it\nalways pointed at a full IPv6 socket.\n\nThat is not guaranteed. TCP SYN-ACK skbs can be owned by a\nTCP_NEW_SYN_RECV request_sock while the output path itself is driven by the\nfull listener. If rerouting selects an IPv6 XFRM tunnel route with a lower\nMTU, the local PMTU/error handling path can reach these callbacks with that\nmini-socket still attached to the skb.\n\nThe callbacks then miscast the request socket as a full inet/IPv6 socket and\ncan read beyond the request_sock allocation when they access inet_sock or\nipv6_pinfo state.\n\nResolve the owner with skb_to_full_sk() in both callbacks and bail out when\nno full socket is attached. This matches the surrounding XFRM IPv6 PMTU/error\nlogic, which already reasons about full sockets with skb_to_full_sk().",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "dd767856a36e00b631d65ebc4bb81b19915532d6",
              "status": "affected",
              "versionType": "git",
              "lessThan": "b1a88633c36d2cbc3831382f3846754d344276fd"
            },
            {
              "version": "dd767856a36e00b631d65ebc4bb81b19915532d6",
              "status": "affected",
              "versionType": "git",
              "lessThan": "904a0e827d0d7189271a3a2eb648293809f25efc"
            },
            {
              "version": "dd767856a36e00b631d65ebc4bb81b19915532d6",
              "status": "affected",
              "versionType": "git",
              "lessThan": "675919e08ce266b8cac11fd9af29170e762a480f"
            },
            {
              "version": "dd767856a36e00b631d65ebc4bb81b19915532d6",
              "status": "affected",
              "versionType": "git",
              "lessThan": "60459c670329d586a58db5d8f811fa5accfe4862"
            },
            {
              "version": "dd767856a36e00b631d65ebc4bb81b19915532d6",
              "status": "affected",
              "versionType": "git",
              "lessThan": "ca3d68c3213475b53db6647e159dc73bd1af5ab1"
            },
            {
              "version": "dd767856a36e00b631d65ebc4bb81b19915532d6",
              "status": "affected",
              "versionType": "git",
              "lessThan": "4c030a0400ebfd2318361c923a88103b2c67c49f"
            },
            {
              "version": "dd767856a36e00b631d65ebc4bb81b19915532d6",
              "status": "affected",
              "versionType": "git",
              "lessThan": "c21f3f7fbfeda7c5794f606cb0ffcc2d9001eef8"
            },
            {
              "version": "dd767856a36e00b631d65ebc4bb81b19915532d6",
              "status": "affected",
              "versionType": "git",
              "lessThan": "6973a21ee73c5567f883813c8ef414774b45892f"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "3.2",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "3.2"
            },
            {
              "version": "5.10.271",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.222",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.189",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.158",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.112",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.54",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "7.2.8",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.2.*"
            },
            {
              "version": "7.3",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}