Do i need to apply Visa in Shanghai Pudong airport?

Flying fr Malaysia to Canada Toronto Airport for study purpose, will be transit in Shanghai Pudong airport but due to not same airline, i might need to check out luggage and recheck in my luggage fr different airline. my transit hours less then 5 hours. So do i need to apply Visa or free transit in this case? I am a Malaysian citizen. Kindly advice what should i do.