Even after huge efforts to increase software quality, bugs
will remain.


The clever attacker understands the unintended side-effects
created by a bug, as well as the system environment the code
lives in, and crafts an exploit which grants him advantage.
It is high time for defensive technologies which make it
harder to write an exploit.  Recent and upcoming developments
make the environment which Unix processes live in much more
hostile towards exploitation, without impacting well-behaving
processes.