{
  "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-2025-21758",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2025-21758",
    "idYear": 2025,
    "status": "PUBLISHED",
    "publishedAt": "2025-02-27T02:18:12.496Z",
    "updatedAt": "2026-10-15T01:04:02.341Z",
    "importedAt": "2026-10-24T01:57:29.455Z",
    "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: add RCU protection to mld_newpack()",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nipv6: mcast: add RCU protection to mld_newpack()\n\nmld_newpack() can be called without RTNL or RCU being held.\n\nNote that we no longer can use sock_alloc_send_skb() because\nipv6.igmp_sk uses GFP_KERNEL allocations which can sleep.\n\nInstead use alloc_skb() and charge the net->ipv6.igmp_sk\nsocket under RCU protection.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "b8ad0cbc58f703972e9e37c4e2a8081dd7e6a551",
              "status": "affected",
              "versionType": "git",
              "lessThan": "29fa42197f26a97cde29fa8c40beddf44ea5c8f3"
            },
            {
              "version": "b8ad0cbc58f703972e9e37c4e2a8081dd7e6a551",
              "status": "affected",
              "versionType": "git",
              "lessThan": "e8af3632a7f2da83e27b083f787bced1faba00b1"
            },
            {
              "version": "b8ad0cbc58f703972e9e37c4e2a8081dd7e6a551",
              "status": "affected",
              "versionType": "git",
              "lessThan": "1b91c597b0214b1b462eb627ec02658c944623f2"
            },
            {
              "version": "b8ad0cbc58f703972e9e37c4e2a8081dd7e6a551",
              "status": "affected",
              "versionType": "git",
              "lessThan": "25195f9d5ffcc8079ad743a50c0409dbdc48d98a"
            },
            {
              "version": "b8ad0cbc58f703972e9e37c4e2a8081dd7e6a551",
              "status": "affected",
              "versionType": "git",
              "lessThan": "d60d493b0e65647e0335e6a7c4547abcea7df8e9"
            },
            {
              "version": "b8ad0cbc58f703972e9e37c4e2a8081dd7e6a551",
              "status": "affected",
              "versionType": "git",
              "lessThan": "a527750d877fd334de87eef81f1cb5f0f0ca3373"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "2.6.26",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "2.6.26"
            },
            {
              "version": "5.15.179",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.129",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.79",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.16",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.13.4",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.13.*"
            },
            {
              "version": "6.14",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}