I just read this interesting article on lwn:
(lwn subscriber only)
This talks about things like:
1 Stack Smash Protection
2 PAX (alternative Exec Shield)
3 Position Independent Executables.
Stack Smash Protection sounds like a cool feature to me. I don't know
what the performance impact is, but as a developer even if it is to slow
to use by default I would love to have it intergrated into the gcc
shipped by Fedora to make debugging easier.
PAX uses tricks to get a non executable stack, and assignes random
addresses to PIE executables, which Fedora already has in the form of
Exec Shield, good! But if I undertand it correctly PAX does more for
example also make data pages non executable, this might be something
worth looking into.
PIE we already have, good!