{
  "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-2025-37913",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2025-37913",
    "idYear": 2025,
    "status": "PUBLISHED",
    "publishedAt": "2025-05-20T15:21:44.793Z",
    "updatedAt": "2026-10-15T21:52:02.947Z",
    "importedAt": "2026-10-24T01:57:34.152Z",
    "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_sched: qfq: Fix double list add in class with netem as child qdisc",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet_sched: qfq: Fix double list add in class with netem as child qdisc\n\nAs described in Gerrard's report [1], there are use cases where a netem\nchild qdisc will make the parent qdisc's enqueue callback reentrant.\nIn the case of qfq, there won't be a UAF, but the code will add the same\nclassifier to the list twice, which will cause memory corruption.\n\nThis patch checks whether the class was already added to the agg->active\nlist (cl_is_active) before doing the addition to cater for the reentrant\ncase.\n\n[1] https://lore.kernel.org/netdev/CAHcdcOm+03OD2j6R0=YHKqmy=VgJ8xEOKuP6c7mSgnp-TEJJbw@mail.gmail.com/",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "37d9cf1a3ce35de3df6f7d209bfb1f50cf188cea",
              "status": "affected",
              "versionType": "git",
              "lessThan": "041f410aec2c1751ee22b8b73ba05d38c3a6a602"
            },
            {
              "version": "37d9cf1a3ce35de3df6f7d209bfb1f50cf188cea",
              "status": "affected",
              "versionType": "git",
              "lessThan": "005a479540478a820c52de098e5e767e63e36f0a"
            },
            {
              "version": "37d9cf1a3ce35de3df6f7d209bfb1f50cf188cea",
              "status": "affected",
              "versionType": "git",
              "lessThan": "0bf32d6fb1fcbf841bb9945570e0e2a70072c00f"
            },
            {
              "version": "37d9cf1a3ce35de3df6f7d209bfb1f50cf188cea",
              "status": "affected",
              "versionType": "git",
              "lessThan": "0aa23e0856b7cedb3c88d8e3d281c212c7e4fbeb"
            },
            {
              "version": "37d9cf1a3ce35de3df6f7d209bfb1f50cf188cea",
              "status": "affected",
              "versionType": "git",
              "lessThan": "a43783119e01849fbf2fe8855634e8989b240cb4"
            },
            {
              "version": "37d9cf1a3ce35de3df6f7d209bfb1f50cf188cea",
              "status": "affected",
              "versionType": "git",
              "lessThan": "53bc0b55178bd59bdd4bcd16349505cabf54b1a2"
            },
            {
              "version": "37d9cf1a3ce35de3df6f7d209bfb1f50cf188cea",
              "status": "affected",
              "versionType": "git",
              "lessThan": "370218e8ce711684acc4cdd3cc3c6dd7956bc165"
            },
            {
              "version": "37d9cf1a3ce35de3df6f7d209bfb1f50cf188cea",
              "status": "affected",
              "versionType": "git",
              "lessThan": "f139f37dcdf34b67f5bf92bc8e0f7f6b3ac63aa4"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "5.0",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "5.0"
            },
            {
              "version": "5.4.294",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.4.*"
            },
            {
              "version": "5.10.238",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.182",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.138",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.90",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.28",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.14.6",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.14.*"
            },
            {
              "version": "6.15",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}