Worked on the renesas/zephyr repository to address a critical bug in the ESP32 Ethernet DMA RX datapath, focusing on the correct handling of the first descriptor during DMA buffer reads. Using C programming and embedded systems expertise, implemented a targeted kernel-driver patch that improved data integrity for Ethernet frame reception and prevented frame corruption under edge conditions. The solution was validated through code review and targeted testing, ensuring alignment with project standards and minimizing maintenance risk. Maintained clear commit documentation for traceability, demonstrating a methodical approach to network programming challenges and contributing to the long-term reliability of the codebase.