{
  "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-2024-56654",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2024-56654",
    "idYear": 2024,
    "status": "PUBLISHED",
    "publishedAt": "2024-12-27T15:06:18.224Z",
    "updatedAt": "2026-08-05T11:45:52.018Z",
    "importedAt": "2026-10-24T01:57:20.494Z",
    "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: hci_event: Fix using rcu_read_(un)lock while iterating",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: hci_event: Fix using rcu_read_(un)lock while iterating\n\nThe usage of rcu_read_(un)lock while inside list_for_each_entry_rcu is\nnot safe since for the most part entries fetched this way shall be\ntreated as rcu_dereference:\n\n\tNote that the value returned by rcu_dereference() is valid\n\tonly within the enclosing RCU read-side critical section [1]_.\n\tFor example, the following is **not** legal::\n\n\t\trcu_read_lock();\n\t\tp = rcu_dereference(head.next);\n\t\trcu_read_unlock();\n\t\tx = p->address;\t/* BUG!!! */\n\t\trcu_read_lock();\n\t\ty = p->data;\t/* BUG!!! */\n\t\trcu_read_unlock();",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "a0bfde167b506423111ddb8cd71930497a40fc54",
              "status": "affected",
              "versionType": "git",
              "lessThan": "0108132d7d76d884e443d18b4f067cdf2811911b"
            },
            {
              "version": "a0bfde167b506423111ddb8cd71930497a40fc54",
              "status": "affected",
              "versionType": "git",
              "lessThan": "f9ecc90b5d501b3a5a62d0685d5104f934bb0104"
            },
            {
              "version": "a0bfde167b506423111ddb8cd71930497a40fc54",
              "status": "affected",
              "versionType": "git",
              "lessThan": "581dd2dc168fe0ed2a7a5534a724f0d3751c93ae"
            },
            {
              "version": "b475c1109251e30ec21fb574d72a1c71a4ab0039",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "2ccde10127447c1a5caad8469fede945bdb62fdf",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "6.4.16",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.5"
            },
            {
              "version": "6.5.3",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.6"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "6.6",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "6.6"
            },
            {
              "version": "6.6.67",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.6",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.13",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}