Mill Computing, Inc. › Forums › The Mill › Architecture › Instruction Encoding › Reply To: Instruction Encoding
Finding these isn’t neccesarily easy, but the worry is that they allow certain classes of security vulnerabilities like so:
http://mainisusuallyafunction.blogspot.com/2012/11/attacking-hardened-linux-systems-with.html
But again, this is at worst an area where Mill fails to improve on x86.