Re: [PATCH 3/3 V13] RO/NX protection for loadable kernel

From: Rusty Russell
Date: Wed Dec 01 2010 - 08:36:55 EST


On Wed, 1 Dec 2010 01:16:23 am Steven Rostedt wrote:
> On Tue, 2010-11-30 at 10:05 +1030, Rusty Russell wrote:
> > On Tue, 30 Nov 2010 04:45:42 am Steven Rostedt wrote:
> > > This patch breaks function tracer:
> > ...
> > > Here we set the text read only before we call the notifiers. The
> > > function tracer changes the calls to mcount into nops via a notifier
> > > call so this must be done after the module notifiers.
> >
> > That seems fine.
> >
> > I note that both before and after this patch we potentially execute code
> > in the module (via parse_args) before we set it ro & nx. But fixing this
> > last bit of coverage is probably not worth the pain...
>
> Rusty, can I take this as an "Acked-by"?

Yep... Acked-by: Rusty Russell <rusty@xxxxxxxxxxxxxxx>

Thanks,
Rusty.
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