During January 2025, Vitaly Buka focused on enhancing the reliability of the DynamoRIO/dynamorio repository by addressing a critical bug related to undefined behavior in pointer arithmetic, specifically involving NULL pointer handling. Working in C and leveraging expertise in low-level programming and memory management, Vitaly implemented cross-file adjustments to pointer arithmetic and address calculations across core components. This work improved the correctness of memory segment handling and instruction encoding, particularly under memory-mapping and translation scenarios. By resolving sanitizer.pointer-overflow reports, Vitaly’s contributions reduced edge-case failures and improved the production readiness of the toolchain, demonstrating depth in debugging and compiler development.