Worked on strengthening the Bluetooth stack within the apache/nuttx repository, focusing on improving reliability and security for embedded systems. Addressed critical issues in driver development by consolidating fixes that targeted buffer overflows, protocol misbehavior, and missing response handling. The approach involved implementing ACL data packet length validation, correcting H4 header and data buffer checks, and enhancing error logging for missing HCI command responses. All changes were developed in C, leveraging expertise in Bluetooth protocols and embedded driver architecture. This work resulted in a more robust Bluetooth subsystem, reducing the risk of overflow vulnerabilities and improving overall stack stability for NuttX.