CVE-2026-43021

In the Linux kernel, the following vulnerability has been resolved:

Bluetooth: hci_sync: fix leaks when hci_cmd_sync_queue_once fails

When hci_cmd_sync_queue_once() returns with error, the destroy callback
will not be called.

Fix leaking references / memory on these failures.

More information : https://git.kernel.org/stable/c/7fd74178d4b16dcf47179da634ea9d7c02e3608b