{
  "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-2026-53358",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-53358",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-07-02T13:43:17.630Z",
    "updatedAt": "2026-10-19T20:07:44.244Z",
    "importedAt": "2026-10-24T01:58:20.586Z",
    "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: use chan timer to close channels in cleanup_listen()",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: L2CAP: use chan timer to close channels in cleanup_listen()\n\nl2cap_chan_close() removes the channel from conn->chan_l, which\nmust be done under conn->lock.  cleanup_listen() runs under the\nparent sk_lock, so acquiring conn->lock would invert the\nestablished conn->lock -> chan->lock -> sk_lock order.\n\nInstead of calling l2cap_chan_close() directly, schedule\nl2cap_chan_timeout with delay 0 to close the channel\nasynchronously.  The timeout handler already acquires conn->lock\nand chan->lock in the correct order.\n\nThe timer is only armed when chan->conn is still set: if it is\nalready NULL, l2cap_conn_del() has already processed this channel\n(l2cap_chan_del + l2cap_sock_teardown_cb + l2cap_sock_close_cb),\nso there is nothing left to do.  If l2cap_conn_del() races in\nafter the timer is armed, __clear_chan_timer() inside\nl2cap_chan_del() cancels it; if the timer has already fired, the\nhandler returns harmlessly because chan->conn was cleared.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "3df91ea20e744344100b10ae69a17211fcf5b207",
              "status": "affected",
              "versionType": "git",
              "lessThan": "3634cbdc2eb414b69ffa752ddbe5e0458518e321"
            },
            {
              "version": "3df91ea20e744344100b10ae69a17211fcf5b207",
              "status": "affected",
              "versionType": "git",
              "lessThan": "e1c100e2d61bd8c718b7d91fe3e050780a9bf72d"
            },
            {
              "version": "3df91ea20e744344100b10ae69a17211fcf5b207",
              "status": "affected",
              "versionType": "git",
              "lessThan": "deb8493a8fa599f6c95e2465b12bfdfb7f94a1d9"
            },
            {
              "version": "3df91ea20e744344100b10ae69a17211fcf5b207",
              "status": "affected",
              "versionType": "git",
              "lessThan": "89dec92041717b027216e110599e4f6d6c921b79"
            },
            {
              "version": "3df91ea20e744344100b10ae69a17211fcf5b207",
              "status": "affected",
              "versionType": "git",
              "lessThan": "50dfec218808b148ab4247b1858031b7a32015c5"
            },
            {
              "version": "3df91ea20e744344100b10ae69a17211fcf5b207",
              "status": "affected",
              "versionType": "git",
              "lessThan": "859d3ace791ed878ae9ba5522c7844d960da8f88"
            },
            {
              "version": "3df91ea20e744344100b10ae69a17211fcf5b207",
              "status": "affected",
              "versionType": "git",
              "lessThan": "7555fd885a0603f50e49a655850a1f2bd8a25398"
            },
            {
              "version": "3df91ea20e744344100b10ae69a17211fcf5b207",
              "status": "affected",
              "versionType": "git",
              "lessThan": "8c8e620467a7b51562dbcefbd1f09f288d7d710d"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "3.4",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "3.4"
            },
            {
              "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": "*"
            }
          ]
        }
      ]
    }
  }
}