{
  "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-2025-38477",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2025-38477",
    "idYear": 2025,
    "status": "PUBLISHED",
    "publishedAt": "2025-07-28T11:21:38.319Z",
    "updatedAt": "2026-10-15T01:07:26.004Z",
    "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: sch_qfq: Fix race condition on qfq_aggregate",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/sched: sch_qfq: Fix race condition on qfq_aggregate\n\nA race condition can occur when 'agg' is modified in qfq_change_agg\n(called during qfq_enqueue) while other threads access it\nconcurrently. For example, qfq_dump_class may trigger a NULL\ndereference, and qfq_delete_class may cause a use-after-free.\n\nThis patch addresses the issue by:\n\n1. Moved qfq_destroy_class into the critical section.\n\n2. Added sch_tree_lock protection to qfq_dump_class and\nqfq_dump_class_stats.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "462dbc9101acd38e92eda93c0726857517a24bbd",
              "status": "affected",
              "versionType": "git",
              "lessThan": "aa7a22c4d678bf649fd3a1d27debec583563414d"
            },
            {
              "version": "462dbc9101acd38e92eda93c0726857517a24bbd",
              "status": "affected",
              "versionType": "git",
              "lessThan": "d841aa5518508ab195b6781ad0d73ee378d713dd"
            },
            {
              "version": "462dbc9101acd38e92eda93c0726857517a24bbd",
              "status": "affected",
              "versionType": "git",
              "lessThan": "c6df794000147a3a02f79984aada4ce83f8d0a1e"
            },
            {
              "version": "462dbc9101acd38e92eda93c0726857517a24bbd",
              "status": "affected",
              "versionType": "git",
              "lessThan": "466e10194ab81caa2ee6a332d33ba16bcceeeba6"
            },
            {
              "version": "462dbc9101acd38e92eda93c0726857517a24bbd",
              "status": "affected",
              "versionType": "git",
              "lessThan": "fbe48f06e64134dfeafa89ad23387f66ebca3527"
            },
            {
              "version": "462dbc9101acd38e92eda93c0726857517a24bbd",
              "status": "affected",
              "versionType": "git",
              "lessThan": "a6d735100f602c830c16d69fb6d780eebd8c9ae1"
            },
            {
              "version": "462dbc9101acd38e92eda93c0726857517a24bbd",
              "status": "affected",
              "versionType": "git",
              "lessThan": "c000a3a330d97f6c073ace5aa5faf94b9adb4b79"
            },
            {
              "version": "462dbc9101acd38e92eda93c0726857517a24bbd",
              "status": "affected",
              "versionType": "git",
              "lessThan": "5e28d5a3f774f118896aec17a3a20a9c5c9dfc64"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "3.8",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "3.8"
            },
            {
              "version": "5.4.297",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.4.*"
            },
            {
              "version": "5.10.241",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.190",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.147",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.100",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.40",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.15.8",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.15.*"
            },
            {
              "version": "6.16",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}