Re: [kernel-hardening] [PATCH v4] scripts: add leaking_addresses.pl

[Tobin C. Harding]

On Thu, Nov 09, 2017 at 11:49:52AM +1100, Michael Ellerman wrote:
> "Tobin C. Harding" <me@xxxxxxxx> writes:
> 
> > On Wed, Nov 08, 2017 at 11:10:56PM +1100, Michael Ellerman wrote:
> >> "Tobin C. Harding" <me@xxxxxxxx> writes:
> > [snip]
> >
> > Hi Michael,
> >
> > I'm working an adding support for ppc64 to leaking_addresses.pl, I've
> > added the kernel address regular expression that you suggested.
> 
> Thanks!
> 
> > I'd like to add the false positive for vsyscall addresses. Excuse my
> > ignorance but does PowerPC use a constant address range for vsyscall like x86_64
> > does? The ppc64 machine I have access to does not output anything for
> >
> > 	$ cat /proc/PID/tasks/PID/smaps		or
> > 	$ cat /proc/PID/tasks/PID/maps
> 
> No we only have the vdso style vsyscall, which is mapped at user
> addresses and is subject to ASLR, so you shouldn't need to worry about
> it.

Great. I'll add you to the CC list for the next spin. In line with my
aim of having the most confusing patches to follow the next version will
likely be

[PATCH 0/X v2] scripts/leaking_addresses: add summary report

thanks,
Tobin.