{
  "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-2026-31678",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-31678",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-04-25T08:46:54.476Z",
    "updatedAt": "2026-10-19T18:56:04.200Z",
    "importedAt": "2026-10-24T01:58:02.025Z",
    "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": "openvswitch: defer tunnel netdev_put to RCU release",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nopenvswitch: defer tunnel netdev_put to RCU release\n\novs_netdev_tunnel_destroy() may run after NETDEV_UNREGISTER already\ndetached the device. Dropping the netdev reference in destroy can race\nwith concurrent readers that still observe vport->dev.\n\nDo not release vport->dev in ovs_netdev_tunnel_destroy(). Instead, let\nvport_netdev_free() drop the reference from the RCU callback, matching\nthe non-tunnel destroy path and avoiding additional synchronization\nunder RTNL.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "a9020fde67a6eb77f8130feff633189f99264db1",
              "status": "affected",
              "versionType": "git",
              "lessThan": "9d56aced21fb9c104e8a3f3be9b21fbafe448ffc"
            },
            {
              "version": "a9020fde67a6eb77f8130feff633189f99264db1",
              "status": "affected",
              "versionType": "git",
              "lessThan": "42f0d3d81209654c08ffdde5a34b9b92d2645896"
            },
            {
              "version": "a9020fde67a6eb77f8130feff633189f99264db1",
              "status": "affected",
              "versionType": "git",
              "lessThan": "bbe7bd722bfaea36aab3da6cc60fb4a05c644643"
            },
            {
              "version": "a9020fde67a6eb77f8130feff633189f99264db1",
              "status": "affected",
              "versionType": "git",
              "lessThan": "98b726ab5e2a4811e27c28e4d041f75bba147eab"
            },
            {
              "version": "a9020fde67a6eb77f8130feff633189f99264db1",
              "status": "affected",
              "versionType": "git",
              "lessThan": "b8c56a3fc5d879c0928f207a756b0f067f06c6a8"
            },
            {
              "version": "a9020fde67a6eb77f8130feff633189f99264db1",
              "status": "affected",
              "versionType": "git",
              "lessThan": "6931d21f87bc6d657f145798fad0bf077b82486c"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "4.3",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "4.3"
            },
            {
              "version": "6.1.168",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.131",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.80",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.21",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "6.19.11",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.19.*"
            },
            {
              "version": "7.0",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}