A malicious / defective bluetooth controller can cause buffer overreads in the most functions that process HCI command responses.

Inconsistent handling of error cases in bluetooth hci may lead to a double free condition of a network buffer.

A malicious / defect bluetooth controller can cause a Denial of Service due to unchecked input in lereadbuffersizecomplete.

At the most basic level, an invalid pointer can be input that crashes the device, but with more knowledge of the device’s memory layout, further exploitation is possible.

A missing nullptr-check in handlerainput can cause a nullptr-deref.