During August 2025, Wang Xiongfeng focused on reliability hardening within the geerlingguy/linux repository, addressing a critical issue in the kernel timer subsystem. He delivered a targeted bug fix in C that ensured migrated softirq-based high-resolution timers would reliably expire after CPU migration, even when high-resolution and NOHZ modes were inactive. By unconditionally updating the target CPU base after migration, he improved the predictability of timer-driven workloads across multi-CPU environments. His work demonstrated strong skills in embedded systems, kernel development, and timer management, with clear commit messages and code comments that support future maintenance and code review processes.