{
  "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-2026-98347",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-98347",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-10-06T08:46:36.136Z",
    "updatedAt": "2026-10-19T09:17:58.195Z",
    "importedAt": "2026-10-24T01:58:41.756Z",
    "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": "IB/IPoIB: Avoid restoring OPER_UP after multicast flush",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nIB/IPoIB: Avoid restoring OPER_UP after multicast flush\n\nipoib_ib_dev_flush_light() temporarily clears IPOIB_FLAG_OPER_UP to\nprevent multicast joins while ipoib_mcast_dev_flush() is running, and\nrestores the flag afterwards if it was previously set.\n\nThis restore races with ipoib_ib_dev_down(). If the interface is brought\ndown while the flush is in progress, ipoib_ib_dev_down() clears\nIPOIB_FLAG_OPER_UP, but the flush path may set it again after the device\nhas already gone down.\n\nSince commit 894021a75291 (\"IB/ipoib: Make the carrier_on_task race\naware\"), ipoib_mcast_carrier_on_task() relies on IPOIB_FLAG_OPER_UP\nbeing cleared to terminate its rtnl_trylock() retry loop. If the flag is\nleft set after shutdown, the workqueue retries forever, causing teardown\nto deadlock when ipoib_ndo_uninit() waits in destroy_workqueue() while\nholding RTNL.\n\nInstead of overloading IPOIB_FLAG_OPER_UP to block multicast joins\nduring a light flush, introduce a dedicated IPOIB_FLAG_MCAST_FLUSH flag.\nUse it together with IPOIB_FLAG_OPER_UP to determine whether multicast\njoins are allowed, avoiding the race with device shutdown.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "344bacca8cd811809fc33a249f2738ab757d327f",
              "status": "affected",
              "versionType": "git",
              "lessThan": "f973769fb7cb33ba0d4a64b7dcfee0cabaead938"
            },
            {
              "version": "344bacca8cd811809fc33a249f2738ab757d327f",
              "status": "affected",
              "versionType": "git",
              "lessThan": "b72f38929f4b5aa83161fd3b22a7327207e51ec5"
            },
            {
              "version": "344bacca8cd811809fc33a249f2738ab757d327f",
              "status": "affected",
              "versionType": "git",
              "lessThan": "1b11e4b55b41d9e69a8e8d07622614202e2eaca9"
            },
            {
              "version": "344bacca8cd811809fc33a249f2738ab757d327f",
              "status": "affected",
              "versionType": "git",
              "lessThan": "326f7d34bd7e64de535566b65c0533b640df5a81"
            },
            {
              "version": "344bacca8cd811809fc33a249f2738ab757d327f",
              "status": "affected",
              "versionType": "git",
              "lessThan": "5ad925d45f28464a5e043c9620880bb6a030da89"
            },
            {
              "version": "344bacca8cd811809fc33a249f2738ab757d327f",
              "status": "affected",
              "versionType": "git",
              "lessThan": "188b334a6db36a8e0bfaaf59bc4020639a0f3aad"
            },
            {
              "version": "344bacca8cd811809fc33a249f2738ab757d327f",
              "status": "affected",
              "versionType": "git",
              "lessThan": "1ff3add37c329704ec46181b4ae4f00f9f16ce6f"
            },
            {
              "version": "344bacca8cd811809fc33a249f2738ab757d327f",
              "status": "affected",
              "versionType": "git",
              "lessThan": "9a141d3dc869d18b2eab35e999f4790a9b84e40f"
            },
            {
              "version": "a289c65ca49d2680a3d797e633e57a45573d1df2",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "b81459c78935e4579a577b2366c5f8878d3c7fee",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "8a9d8dc9ce83a90bfbbe69181acc4cf1beff46f5",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "dfe809702a11bd7fb91c882fb55620e39ce22109",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "87160fb51bc343793cc8f5f031a87f1a35aecb82",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "749fd55dd210f9676f0d445a6efaaa3bec65174a",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "3.2.84",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "3.3"
            },
            {
              "version": "3.10.105",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "3.11"
            },
            {
              "version": "3.12.65",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "3.13"
            },
            {
              "version": "3.16.39",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "3.17"
            },
            {
              "version": "4.4.24",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "4.5"
            },
            {
              "version": "4.7.7",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "4.8"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "4.8",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "4.8"
            },
            {
              "version": "5.10.271",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.222",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.189",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.158",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.112",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.54",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "7.2.8",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.2.*"
            },
            {
              "version": "7.3",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}