During July 2025, Oliver Neukum focused on enhancing the reliability of USB device drivers within the geerlingguy/linux repository. Concentrating on the Linux USB stack, he addressed three critical bugs affecting device initialization and compatibility. Using C and leveraging his expertise in kernel and embedded systems development, Oliver improved the Sierra_net driver to validate status endpoint presence, preventing device errors. He refined packet processing in cdc-ncm to respect device filtering capabilities and resolved a race condition in cdc-acm by ensuring proper endpoint handling before device registration. His work improved stability and maintainability across diverse USB devices, reflecting strong attention to detail.