Re: [PATCH 4/5] kprobes: Do not expose probe addresses to non-CAP_SYSLOG

From: Kees Cook
Date: Sun Jul 05 2020 - 16:19:32 EST


On Sun, Jul 05, 2020 at 01:10:54PM -0700, Linus Torvalds wrote:
> On Fri, Jul 3, 2020 at 8:50 AM Kees Cook <keescook@xxxxxxxxxxxx> wrote:
> >
> > With 67 kthreads on a booted system, this patch does not immediately
> > blow up...
>
> Did you try making read/write inc/dec that thing too? Or does that
> just blow up with tons of warnings?

I hadn't gotten to that yet. I need to catch up on other stuff first,
and I thought I'd give people time to scream if they tested this
themselves. :)

--
Kees Cook