On Wed, 9 Mar 2016 15:07:07 -0700 Scotty Bauer <sba...@eng.utah.edu> wrote:
> On 03/09/2016 01:32 AM, Ingo Molnar wrote: > > > > Could you please add a high level description in Documentation > > that explains the attack and the way how this mitigation code > > prevents that kind of attack? > > > > Also, the first changelogs should contain more high level > > description as well. For example, what does the 'verification' > > of the signal cookie mean, and how does it prevent an SROP > > attempt? > > > > All of these patches seem to assume that people reading this code > > know what SROP is and how we defend against it - that is not so. > > I'm going to submit v4 to fix some nits where I'll include the explanation > and a change log, I apologize for not doing that here. In the meantime if > you don't mind visiting a link I included a brief explanation on previous > versions of the patch set. > > https://lkml.org/lkml/2016/2/6/166 The curious might also find background information in my article about this patch set: https://lwn.net/Articles/676803/ (The information still belongs with the patch posting, of course...) jon
