Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: MGMT: free the HCI command when it is cancelled mgmt_hci_cmd_sync() queues the pending command with a NULL destroy callback, so it is only freed if send_hci_cmd_sync() runs. A cancelled entry is leaked, as _hci_cmd_sync_cancel_entry() does not release entry->data when there is no destroy callback, and hci_cmd_sync_clear() cancels every pending entry when the controller is unregistered. Nothing else reclaims it either: mgmt_pending_new() does not put the command on hdev->mgmt_pending. The leak also pins the socket reference taken by mgmt_pending_new(), so the mgmt socket is never released. Free the command from a destroy callback. The now-empty done label is replaced by a direct return.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 827af4787e74e8df9e8e0677a69fbb15e0856d2f before e0cd7b34dc6b5414cac3d4cd376f73d3e9ffbd93; affected 827af4787e74e8df9e8e0677a69fbb15e0856d2f before 481533b03985177ddc805e0bd12fc07e7adf9040; affected 827af4787e74e8df9e8e0677a69fbb15e0856d2f before 414b365ecea6c30357adee6b8a7c5edc03a03575 |
| Linux / Linux | affected 6.13; unaffected 0 before 6.13; unaffected 6.18.52 through 6.18.*; unaffected 7.2.6 through 7.2.*; unaffected 7.3 through * |
CWE
No CWE identifiers supplied.