{
  "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-2024-27390",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2024-27390",
    "idYear": 2024,
    "status": "PUBLISHED",
    "publishedAt": "2024-05-01T13:05:12.775Z",
    "updatedAt": "2026-07-24T14:33:16.601Z",
    "importedAt": "2026-10-24T01:57:07.518Z",
    "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: mcast: remove one synchronize_net() barrier in ipv6_mc_down()",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nipv6: mcast: remove one synchronize_net() barrier in ipv6_mc_down()\n\nAs discussed in the past (commit 2d3916f31891 (\"ipv6: fix skb drops\nin igmp6_event_query() and igmp6_event_report()\")) I think the\nsynchronize_net() call in ipv6_mc_down() is not needed.\n\nUnder load, synchronize_net() can last between 200 usec and 5 ms.\n\nKASAN seems to agree as well.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "94d6a071ab2f26eb18a83109940db0cec19552fd",
              "status": "affected",
              "versionType": "git",
              "lessThan": "bfd2f3c58ad86ad33db80515e6c3503e0414e44b"
            },
            {
              "version": "f185de28d9ae6c978135993769352e523ee8df06",
              "status": "affected",
              "versionType": "git",
              "lessThan": "9d159d6637ccce25f879d662a480541ef4ba3a50"
            },
            {
              "version": "f185de28d9ae6c978135993769352e523ee8df06",
              "status": "affected",
              "versionType": "git",
              "lessThan": "a03ede2282ebbd181bd6f5c38cbfcb5765afcd04"
            },
            {
              "version": "f185de28d9ae6c978135993769352e523ee8df06",
              "status": "affected",
              "versionType": "git",
              "lessThan": "26d4bac55750d535f1f0b8790dc26daf6089e373"
            },
            {
              "version": "f185de28d9ae6c978135993769352e523ee8df06",
              "status": "affected",
              "versionType": "git",
              "lessThan": "7eb06ee5921189812e6b4bfe7b0f1e878be16df7"
            },
            {
              "version": "f185de28d9ae6c978135993769352e523ee8df06",
              "status": "affected",
              "versionType": "git",
              "lessThan": "5da9a218340a2bc804dc4327e5804392e24a0b88"
            },
            {
              "version": "f185de28d9ae6c978135993769352e523ee8df06",
              "status": "affected",
              "versionType": "git",
              "lessThan": "17ef8efc00b34918b966388b2af0993811895a8c"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "5.13",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "5.13"
            },
            {
              "version": "5.15.153",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.83",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.23",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.7.11",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.7.*"
            },
            {
              "version": "6.8.2",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.8.*"
            },
            {
              "version": "6.9",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}