On Thu, 11 Oct 2018, Jann Horn wrote:
> On Thu, Oct 11, 2018 at 10:56 PM Kees Cook <keesc...@chromium.org> wrote:
> > Seems like just changing this with "ax == 0" into "ax >= 0" would solve
> > that?
>
> As spender points out on twitter
> (https://twitter.com/grsecurity/status/1050497259937370118 - thanks,
> spender!), struct pt_regs stores register values as "unsigned long",
> and so you'll need to use something like IS_ERR_VALUE().
Ha, so it's not only me who noticed, but then I'm not reading twitter...
Thanks,
tglx
