{
  "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-2026-97940",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-97940",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-09-25T10:22:52.936Z",
    "updatedAt": "2026-10-19T09:11:06.854Z",
    "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: fix fib6 walker UAF on seq stop",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nipv6: fix fib6 walker UAF on seq stop\n\nipv6_route_iter_active() treats a walker in FWS_U at the table root as\nalready unlinked. fib6_del_route() can move a still-linked walker into\nthat same state when the current leaf is the last route at the root,\nso ipv6_route_native_seq_stop() skips fib6_walker_unlink(). The seq\nprivate object can then be freed while it remains on\nnet->ipv6.fib6_walkers. A later route deletion walks the dangling list\nand uses the freed walker.\n\nUse the list head as membership state and reinitialize it when\nunlinking. Keep the existing w->node check so a never-started iterator\nwith a zeroed private object is not treated as linked.\n\nThe same stop helper is used by /proc/net/ipv6_route and by the BPF\nipv6_route iterator. The BPF show path only widens the race.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "8d2ca1d7b5c3e63b3a8a81ae99015b615c5f2bf7",
              "status": "affected",
              "versionType": "git",
              "lessThan": "9a3f73d62c86271614eda4c43315230896a37018"
            },
            {
              "version": "8d2ca1d7b5c3e63b3a8a81ae99015b615c5f2bf7",
              "status": "affected",
              "versionType": "git",
              "lessThan": "63407cddabc5992b5ac03af165559f4a1968a032"
            },
            {
              "version": "8d2ca1d7b5c3e63b3a8a81ae99015b615c5f2bf7",
              "status": "affected",
              "versionType": "git",
              "lessThan": "05b687ee04f816658f4a9cf586f4d2f129157943"
            },
            {
              "version": "8d2ca1d7b5c3e63b3a8a81ae99015b615c5f2bf7",
              "status": "affected",
              "versionType": "git",
              "lessThan": "14fdaba201fdff92a3e45994e02bccda409cb19d"
            },
            {
              "version": "8d2ca1d7b5c3e63b3a8a81ae99015b615c5f2bf7",
              "status": "affected",
              "versionType": "git",
              "lessThan": "0eede1689610e9eeaf729ba86fd1321799eb91a0"
            },
            {
              "version": "8d2ca1d7b5c3e63b3a8a81ae99015b615c5f2bf7",
              "status": "affected",
              "versionType": "git",
              "lessThan": "b89b691dd00bf39b9ba39ab9446f8c62f419fa7b"
            },
            {
              "version": "8d2ca1d7b5c3e63b3a8a81ae99015b615c5f2bf7",
              "status": "affected",
              "versionType": "git",
              "lessThan": "4553cfafa8d05c4ce20b1d18f79d9bb3b303fc02"
            },
            {
              "version": "8d2ca1d7b5c3e63b3a8a81ae99015b615c5f2bf7",
              "status": "affected",
              "versionType": "git",
              "lessThan": "19b4ed644d68098cc62ab612727f40d30f43476c"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "3.13",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "3.13"
            },
            {
              "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": "6.12.111",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.53",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "7.2.7",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.2.*"
            },
            {
              "version": "7.3",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}