{
  "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-2026-90093",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-90093",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-09-17T16:06:06.843Z",
    "updatedAt": "2026-10-21T12:49:48.027Z",
    "importedAt": "2026-10-24T01:58:35.090Z",
    "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: access chan->conn safely in get/setsockopt",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: L2CAP: access chan->conn safely in get/setsockopt\n\nSince commit b66774b48dd9 (\"Bluetooth: L2CAP: Fix UAF in channel timeout by holding conn ref\")\nl2cap_chan::conn has held reference and remains non-NULL also after the\ncorresponding hci_conn is deleted.  In this state accessing various\nfields eg. hci_conn::hdev is invalid, which leads to KASAN crash in\nl2cap_sock_setsockopt() access of conn->hcon->hdev.\n\nCheck l2cap_chan::conn.hcon corresponds to an alive hci_conn before\ntrying to use it in l2cap_sock.c.  Hold l2cap_chan_lock() in\ngetsockopt/setsockopt to ensure it stays alive, and to avoid data races\nin l2cap_chan fields.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "91047a4396a8b1857a6f712a90cf33ec0012b189",
              "status": "affected",
              "versionType": "git",
              "lessThan": "19e154d794eb4d33d99ca4a087b1cea9d5e65786"
            },
            {
              "version": "0b0e2bf39cf99e458d991b9df253727e036a7d7d",
              "status": "affected",
              "versionType": "git",
              "lessThan": "3af72bf8f73c519ee562e6963d5ff8e678924f93"
            },
            {
              "version": "d3b739db5dc6f688a60d56da872fabaf65246032",
              "status": "affected",
              "versionType": "git",
              "lessThan": "8460dc49c9756a1e9288218060b4d41e1b704905"
            },
            {
              "version": "b66774b48dd98f07254951f74ea6f513efe7ff8b",
              "status": "affected",
              "versionType": "git",
              "lessThan": "f49321c85785178214fd67f2e9b4b73d6363783b"
            },
            {
              "version": "b66774b48dd98f07254951f74ea6f513efe7ff8b",
              "status": "affected",
              "versionType": "git",
              "lessThan": "ca2c4c26498643f421d35ffe258fafbd3ed461c3"
            },
            {
              "version": "8f90405a4a6f1f1880dc07996b47bf57c712bd8a",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "32d783cafb46ff3ca58e6f9fd62c9c5f35eaf26b",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "8922c7940bae9ce4b1736dddb6362370793835c2",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "50c38d9f42a529691e4e67ea9cedf4f0bfc8d277",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "6.6.145",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.6.160"
            },
            {
              "version": "6.12.97",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.12.114"
            },
            {
              "version": "6.18.39",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.18.57"
            },
            {
              "version": "5.10.265",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.11"
            },
            {
              "version": "5.15.216",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.16"
            },
            {
              "version": "6.1.183",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.2"
            },
            {
              "version": "7.1.4",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "7.2"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "7.2",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "7.2"
            },
            {
              "version": "6.6.160",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.114",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.57",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "7.2.6",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.2.*"
            },
            {
              "version": "7.3",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}