BST Device Name Length Can Overflow Driver Buffer

A stack buffer overflow exists in the PX4 BST telemetry driver. The driver processes a device info reply without validating the dev_name_len parameter, writing a null terminator at an attacker-controlled offset. Since the dev_name buffer is only 32 bytes and the length is unchecked, a malicious BST device can report an oversized dev_name_len, causing a stack overflow in the driver and crashing the task or enabling code execution.