{
  "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-2026-63948",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-63948",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-07-19T14:55:41.985Z",
    "updatedAt": "2026-07-19T14:55:41.985Z",
    "importedAt": "2026-10-24T01:58:25.636Z",
    "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": "Bluetooth: L2CAP: fix chan ref leak in l2cap_chan_timeout() on !conn",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: L2CAP: fix chan ref leak in l2cap_chan_timeout() on !conn\n\n__set_chan_timer() takes a l2cap_chan reference via l2cap_chan_hold()\nbefore scheduling the delayed work.  The normal path in\nl2cap_chan_timeout() drops this reference with l2cap_chan_put() at the\nend, but the early return when chan->conn is NULL skips the put,\nleaking the reference.\n\nAdd the missing l2cap_chan_put() before the early return.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "06acb75e7ed600d0bbf7bff5628aa8f24a97978c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "50f1bcaaaa3a80bb1c3472044bc146e8d49d51ee"
            },
            {
              "version": "e97e16433eb4533083b096a3824b93a5ca3aee79",
              "status": "affected",
              "versionType": "git",
              "lessThan": "b5c59a5b469e2a809a2d57eda4ded94235971060"
            },
            {
              "version": "8960ff650aec70485b40771cd8e6e8c4cb467d33",
              "status": "affected",
              "versionType": "git",
              "lessThan": "8894c2010435a56ce7c6c2a8785860c13554df2f"
            },
            {
              "version": "955b5b6c54d95b5e7444dfc81c95c8e013f27ac0",
              "status": "affected",
              "versionType": "git",
              "lessThan": "63cd225cc13d782a85e2a73c04d0d350153eada1"
            },
            {
              "version": "adf0398cee86643b8eacde95f17d073d022f782c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "107c826e4ef9ec5ad8f60e6fe64d8d5325ba508f"
            },
            {
              "version": "adf0398cee86643b8eacde95f17d073d022f782c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "e8a5baff5be273ca07771fd2b9bb1f2a4152917b"
            },
            {
              "version": "adf0398cee86643b8eacde95f17d073d022f782c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "08d81fe96f80a8e20c7acb573b6a45d901fcf2cd"
            },
            {
              "version": "adf0398cee86643b8eacde95f17d073d022f782c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "9dbd84990394c51f5cee1e8871bb5ff8af5ed939"
            },
            {
              "version": "e137e2ba96e51902dc2878131823a96bf8e638ae",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "6466ee65e5b27161c846c73ef407f49dfa1bd1d9",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "eb86f955488c39526534211f2610e48a5cf8ead4",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "5.10.217",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.10.259"
            },
            {
              "version": "5.15.159",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.15.210"
            },
            {
              "version": "6.1.91",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.1.176"
            },
            {
              "version": "6.6.31",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.6.143"
            },
            {
              "version": "4.19.314",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "4.20"
            },
            {
              "version": "5.4.276",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.5"
            },
            {
              "version": "6.8.10",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.9"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "6.9",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "6.9"
            },
            {
              "version": "5.10.259",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.210",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.176",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.143",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.93",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.35",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "7.0.12",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.0.*"
            },
            {
              "version": "7.1",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}