{
  "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-2026-31499",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-31499",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-04-22T13:54:20.384Z",
    "updatedAt": "2026-05-23T16:05:12.236Z",
    "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": "Bluetooth: L2CAP: Fix deadlock in l2cap_conn_del()",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: L2CAP: Fix deadlock in l2cap_conn_del()\n\nl2cap_conn_del() calls cancel_delayed_work_sync() for both info_timer\nand id_addr_timer while holding conn->lock. However, the work functions\nl2cap_info_timeout() and l2cap_conn_update_id_addr() both acquire\nconn->lock, creating a potential AB-BA deadlock if the work is already\nexecuting when l2cap_conn_del() takes the lock.\n\nMove the work cancellations before acquiring conn->lock and use\ndisable_delayed_work_sync() to additionally prevent the works from\nbeing rearmed after cancellation, consistent with the pattern used in\nhci_conn_del().",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "f87271d21dd4ee83857ca11b94e7b4952749bbae",
              "status": "affected",
              "versionType": "git",
              "lessThan": "f7f35a4f7fd574f5889bb2e4b397e14cbb83f6da"
            },
            {
              "version": "ab4eedb790cae44313759b50fe47da285e2519d5",
              "status": "affected",
              "versionType": "git",
              "lessThan": "3f26ecbd9cde621dd94be7ef252c7210b965a5c7"
            },
            {
              "version": "ab4eedb790cae44313759b50fe47da285e2519d5",
              "status": "affected",
              "versionType": "git",
              "lessThan": "d008460de352e534f6721de829b093368564ec66"
            },
            {
              "version": "ab4eedb790cae44313759b50fe47da285e2519d5",
              "status": "affected",
              "versionType": "git",
              "lessThan": "00fdebbbc557a2fc21321ff2eaa22fd70c078608"
            },
            {
              "version": "efc30877bd4bc85fefe98d80af60fafc86e5775e",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "18ab6b6078fa8191ca30a3065d57bf35d5635761",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "6.12.20",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.12.88"
            },
            {
              "version": "6.6.84",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.7"
            },
            {
              "version": "6.13.8",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.14"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "6.14",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "6.14"
            },
            {
              "version": "6.12.88",
              "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": "*"
            }
          ]
        }
      ]
    }
  }
}