Re: [PATCH v2 2/5] arm64, mm: Move generic mmap layout functions to mm

From: Kees Cook
Date: Wed Apr 10 2019 - 14:34:14 EST


On Wed, Apr 10, 2019 at 12:33 AM Alexandre Ghiti <alex@xxxxxxxx> wrote:
>
> On 04/10/2019 08:59 AM, Christoph Hellwig wrote:
> > On Thu, Apr 04, 2019 at 01:51:25AM -0400, Alexandre Ghiti wrote:
> >> - fix the case where stack randomization should not be taken into
> >> account.
> > Hmm. This sounds a bit vague. It might be better if something
> > considered a fix is split out to a separate patch with a good
> > description.
>
> Ok, I will move this fix in another patch.

Yeah, I think it'd be best to break this into a few (likely small) patches:
- update the compat case in the arm64 code
- fix the "not randomized" case
- move the code to mm/ (line-for-line identical for easy review)

That'll make it much easier to review (at least for me).

Thanks!

--
Kees Cook