It is not possible from userland, except for extremely serious zero days, due to hardware protections which OSes use, see: https://stackoverflow.com/questions/1

It is not possible from userland, except for extremely serious zero days, due to hardware protections which OSes use, see: https://stackoverflow.com/questions/18717016/what-are-ring-0-and-ring-3-in-the-context-of-operating-systems/44483439#44483439 https://stackoverflow.com/questions/18717016/what-are-ring-0...