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CVE-2023-53374 Bluetooth: hci_conn: fail SCO/ISO via hci_conn_failed if ACL gone early

🗓️ 18 Sep 2025 13:33:20Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 7 Views

Linux kernel fix: clean up SCO and ISO on early ACL deletion to avoid use-after-free via hci_conn_failed.

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/bluetooth/hci_conn.c"
    ],
    "versions": [
      {
        "version": "ca1fd42e7dbfcb34890ffbf1f2f4b356776dab6f",
        "lessThan": "397d58007532644b35fad746da48c41161f32a57",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ca1fd42e7dbfcb34890ffbf1f2f4b356776dab6f",
        "lessThan": "e94b898463a62b72a2a8b75dea8936bf4db78e00",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ca1fd42e7dbfcb34890ffbf1f2f4b356776dab6f",
        "lessThan": "3344d318337d9dca928fd448e966557ec5063f85",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "75e35bd4b7935ceed2aacd82f55940e73bf0b63b",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "6.3.8",
        "lessThan": "6.4",
        "status": "affected",
        "versionType": "semver"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/bluetooth/hci_conn.c"
    ],
    "versions": [
      {
        "version": "6.4",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.4",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.4.16",
        "lessThanOrEqual": "6.4.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.5.3",
        "lessThanOrEqual": "6.5.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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