title: RtlCopyMemory and exception handling
body: <p>Im reading in an address from user-space and using RtlCopyMemory() to copy data over to my output buffer and although I have it working, it lacks any safe guarding against invalid addresses being read which will throw a bug check in my face.</p>
  
  <p>I know that I need to use SEH to do this but I am not sure what exceptions I need to be handling or if RtlCopyMemory even throws any exceptions. If not, how can I check that the address is valid before I pass it into RtlCopyMemory()?</p>