Worked on the Zephyr Project’s trusted-firmware-m repository, focusing on enhancing the robustness and security of embedded firmware. Addressed a critical issue in the RSE communication module by refining the get_free_region_idx function to prevent out-of-bounds memory access, thereby reducing the risk of memory corruption in production environments. The solution involved adjusting the loop’s upper bound logic, directly improving memory safety and reliability for core firmware operations. Utilized C for low-level programming and applied expertise in embedded systems and firmware development to stabilize trusted firmware behavior, prioritizing security hardening and system integrity over new feature development during this period.