{
  "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-2026-90074",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-90074",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-09-17T16:05:54.214Z",
    "updatedAt": "2026-10-19T08:57:31.165Z",
    "importedAt": "2026-10-24T01:58:35.090Z",
    "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: fq_pie: clamp default quantum to avoid signed overflow",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/sched: fq_pie: clamp default quantum to avoid signed overflow\n\nfq_pie_init() sets q->quantum = psched_mtu(qdisc_dev(sch)) without\nclamping. A device with a huge MTU (e.g. dummy with max_mtu == 0\naccepting MTU 2147483634) makes psched_mtu() return 0x80000000, which\noverflows the signed flow->deficit to INT_MIN in fq_pie_qdisc_dequeue(),\ncausing an infinite loop and soft lockup. Emulate fq_pie_policy which\nis already bounded to [1, 1 << 20]; clamp the default to [256, 1 << 20].\n256 matches fq_codel's floor and is a sane minimum for a DRR quantum.\n\nConditions to recreate the bug: a device whose MTU (plus\nhard_header_len) wraps psched_mtu() into the sign bit (e.g. a dummy\ndevice with max_mtu == 0 accepting MTU 2147483634). Requires\nCAP_NET_ADMIN in a user namespace.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "ec97ecf1ebe485a17cd8395a5f35e6b80b57665a",
              "status": "affected",
              "versionType": "git",
              "lessThan": "1f43e4dbc93b7d02761a024d5f895df823c07b72"
            },
            {
              "version": "ec97ecf1ebe485a17cd8395a5f35e6b80b57665a",
              "status": "affected",
              "versionType": "git",
              "lessThan": "f7942b2693bc24c7d609a03d06f97bee3b0bd96a"
            },
            {
              "version": "ec97ecf1ebe485a17cd8395a5f35e6b80b57665a",
              "status": "affected",
              "versionType": "git",
              "lessThan": "6f1be05faecef4c0f9a008200209f66ef2e133f7"
            },
            {
              "version": "ec97ecf1ebe485a17cd8395a5f35e6b80b57665a",
              "status": "affected",
              "versionType": "git",
              "lessThan": "435da3734a8e63d3067016accc977ed1d10aaaa0"
            },
            {
              "version": "ec97ecf1ebe485a17cd8395a5f35e6b80b57665a",
              "status": "affected",
              "versionType": "git",
              "lessThan": "44dad8fe99b58a7fe2961e9eec6a5f07ace5b51f"
            },
            {
              "version": "ec97ecf1ebe485a17cd8395a5f35e6b80b57665a",
              "status": "affected",
              "versionType": "git",
              "lessThan": "044fa2498bbc2900f0c48a6ef2fdd5b2bdfc3795"
            },
            {
              "version": "ec97ecf1ebe485a17cd8395a5f35e6b80b57665a",
              "status": "affected",
              "versionType": "git",
              "lessThan": "bf97fd2163ad1191ef8daa3d4df8372aee19e396"
            },
            {
              "version": "ec97ecf1ebe485a17cd8395a5f35e6b80b57665a",
              "status": "affected",
              "versionType": "git",
              "lessThan": "c86cd7ed0b0e44779a3d1683f03e4353baf4bdc9"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "5.6",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "5.6"
            },
            {
              "version": "5.10.270",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.221",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.188",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.157",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.110",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.52",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "7.2.6",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.2.*"
            },
            {
              "version": "7.3",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}