Re: [RFC PATCH v9 03/13] mm: Add support for eXclusive Page Frame Ownership (XPFO)

From: Tycho Andersen
Date: Wed Apr 17 2019 - 15:52:21 EST

On Wed, Apr 17, 2019 at 12:49:04PM -0700, Andy Lutomirski wrote:
> I also proposed using a gcc plugin (or upstream gcc feature) to add
> some instrumentation to any code that pops RSP to verify that the
> resulting (unsigned) change in RSP is between 0 and THREAD_SIZE bytes.
> This will make ROP quite a bit harder.

I've been playing around with this for a bit, and hope to have
something to post Soon :)