A set of Linux kernel security-oriented patches implementing, among others, least privilege control for memory pages and other resources.

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How does reuse attack protection (RAP) work?

The grsecurity folks just released a test patch for the 4.5 Linux kernel which includes Return Address Reuse Attack Protection or RAP, a protection technique against return-oriented programming (ROP). ...
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470 views

concrete real-life examples where grsecurity prevented an exploit

From theoretical point of view, grsecurity kernel patch looks like a great hardening tool. Most importantly, PaX seems like a good idea. Do these theoretical advantages have indeed practical effect ...
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Is server hardening with GRSecurity really necessary on the CentOS 6.3 environment?

I consider myself to be reasonably good with IT, however I am relatively fresh at server and system administration. I am a web developer for my company and I have been charged with setting up and ...