Sure. Suppose your admin is a funny guy and loads this kernel module at April 1st. I (Jonny non-root user) can no longer listen to my favorite mp3, because the

Sure. Suppose your admin is a funny guy and loads this kernel module at April 1st. I (Jonny non-root user) can no longer listen to my favorite mp3, because the kernel module changes the path all the time. The admin loughs and has fun. But then later I call open() with some fancy arguments and take over the whole machine (or at least crash it). This is the part where I lough.