{
  "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-2026-64046",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-64046",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-07-19T15:39:31.129Z",
    "updatedAt": "2026-10-19T20:28:10.562Z",
    "importedAt": "2026-10-24T01:58:25.636Z",
    "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: tls: prevent chain-after-chain in plain text SG",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: tls: prevent chain-after-chain in plain text SG\n\nSashiko points out that if end = 0 (start != 0) the current\ncode will create a chain link to content type right after\nthe wrap link:\n\n  This would create a chain where the wrap link points directly\n  to another chain link. The scatterlist API sg_next iterator\n  does not recursively resolve consecutive chain links.\n\nmeaning this is illegal input to crypto.\n\nThe wrapping link is unnecessary if end = 0. end is the entry after\nthe last one used so end = 0 means there's nothing pushed after\nthe wrap:\n\n   end         start            i\n    v            v              v\n  [   ]...[   ][ d ][ d ][ d ][ d ][rsv for wrap]\n\nSkip the wrapping in this case.\n\nTLS 1.3 can use the \"wrapping slot\" for it's chaining if end = 0.\nThis avoids the chain-after-chain.\n\nMove the wrap chaining before marking END and chaining off content\ntype, that feels like more logical ordering to me, but should not\nmatter from functional perspective.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "9aaaa56845a06aeabdd597cbe19492dc01f281ec",
              "status": "affected",
              "versionType": "git",
              "lessThan": "49a5faaa471ddcd37b6893970c9916eb836e7c31"
            },
            {
              "version": "9aaaa56845a06aeabdd597cbe19492dc01f281ec",
              "status": "affected",
              "versionType": "git",
              "lessThan": "91359966e247c0244c66d50bbb8e74aefa4321c3"
            },
            {
              "version": "9aaaa56845a06aeabdd597cbe19492dc01f281ec",
              "status": "affected",
              "versionType": "git",
              "lessThan": "410351158dfef2d67fea6603680b3a6013c6ed9d"
            },
            {
              "version": "9aaaa56845a06aeabdd597cbe19492dc01f281ec",
              "status": "affected",
              "versionType": "git",
              "lessThan": "acdc12b71c9aa4be5dcd2c8062753c6d2033e235"
            },
            {
              "version": "9aaaa56845a06aeabdd597cbe19492dc01f281ec",
              "status": "affected",
              "versionType": "git",
              "lessThan": "929b1548e63ac72e104c07d8ee8cbbeeba2fa89a"
            },
            {
              "version": "9aaaa56845a06aeabdd597cbe19492dc01f281ec",
              "status": "affected",
              "versionType": "git",
              "lessThan": "af855f4c966afafef74faf8390c7b86568c0d46d"
            },
            {
              "version": "9aaaa56845a06aeabdd597cbe19492dc01f281ec",
              "status": "affected",
              "versionType": "git",
              "lessThan": "b9c015ef1a7bf1e8dc67f21c6381f36deb2c3a36"
            },
            {
              "version": "9aaaa56845a06aeabdd597cbe19492dc01f281ec",
              "status": "affected",
              "versionType": "git",
              "lessThan": "ff26a0e8377dec07e4a7230db7675bed1b9a6d03"
            },
            {
              "version": "d529d6c9f7e3aaeac13c4948f79799ccb825f29d",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "5.4.14",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.5"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "5.5",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "5.5"
            },
            {
              "version": "5.10.258",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.209",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.175",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.142",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.92",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.34",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "7.0.11",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.0.*"
            },
            {
              "version": "7.1",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}