{
  "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-2026-98261",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-98261",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-10-06T08:45:25.361Z",
    "updatedAt": "2026-10-19T09:16:32.334Z",
    "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": "cifs: Fix server use-after-free in cifs_chan_skip_or_disable()",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\ncifs: Fix server use-after-free in cifs_chan_skip_or_disable()\n\nWhen a secondary channel is no longer supported by the server,\ncifs_chan_skip_or_disable() drops the channel reference with\ncifs_put_tcp_session() and then continues to use the server pointer by\ncalling cifs_signal_cifsd_for_reconnect() on it and reading its\nprimary_server pointer. cifs_put_tcp_session() can drop the last\nreference of the channel and tear it down, so both the channel and the\nprimary server (whose reference is also dropped by\ncifs_put_tcp_session()) can be freed before they are signaled for\nreconnect.\n\nSignal the channel and the primary server and capture the primary\nserver pointer before dropping the channel reference with\ncifs_put_tcp_session().",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "50e8363ecc85da49764781da90ebffe1a657b370",
              "status": "affected",
              "versionType": "git",
              "lessThan": "0338489960ddad6368bce55e8adbc176c523093d"
            },
            {
              "version": "f591062bdbf4742b7f1622173017f19e927057b0",
              "status": "affected",
              "versionType": "git",
              "lessThan": "edd52eae5fcfb8433b6bb0e7cd98db438fe01227"
            },
            {
              "version": "f591062bdbf4742b7f1622173017f19e927057b0",
              "status": "affected",
              "versionType": "git",
              "lessThan": "fcc0a935bb6e37ecbf7e4335061309f896f35780"
            },
            {
              "version": "f591062bdbf4742b7f1622173017f19e927057b0",
              "status": "affected",
              "versionType": "git",
              "lessThan": "7a1b27780b113583a94256d58dabfe7c0d9286e7"
            },
            {
              "version": "f591062bdbf4742b7f1622173017f19e927057b0",
              "status": "affected",
              "versionType": "git",
              "lessThan": "717e0a25036b6c92cecace30913b2d874a4c22b8"
            },
            {
              "version": "d61ba1d71ea6039eca7ada870bf3f0c3c8fc12e4",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "6.6.15",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.6.158"
            },
            {
              "version": "6.7.3",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.8"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "6.8",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "6.8"
            },
            {
              "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": "*"
            }
          ]
        }
      ]
    }
  }
}