PaX Team introduces a new protection against ROP: RAP(Return Address Protection) Slideshow: hxxps://pax.grsecurity.net/docs/PaXTeam-H2HC15-RAP-RIP-ROP.pdf
RAP has arrived, though only a subset of the features is free: https://grsecurity.net/rap_announce.php
Damn, what a bad move from grsec. They could make RAP free for the testing users, like the rest of their code. We're literally a HUUGE test-bed that they have, we save them a lot of money by using the non-tested patches.