On Wed, Mar 4, 2015 at 1:54 PM, Ingo Molnar [off-list ref] wrote:

* Kees Cook [off-list ref] wrote:

quoted

To address the "offset2lib" ASLR weakness[1], this separates ET_DYN
ASLR from mmap ASLR, as already done on s390. The architectures
that are already randomizing mmap (arm, arm64, mips, powerpc, s390,
and x86), have their various forms of arch_mmap_rnd() made available
via the new CONFIG_ARCH_HAS_ELF_RANDOMIZE. For these architectures,
arch_randomize_brk() is collapsed as well.

This is an alternative to the solutions in:
https://lkml.org/lkml/2015/2/23/442

I've been able to test x86 and arm, and the buildbot (so far) seems
happy with building the rest.

Ok, this looks really good - for all patches:

   Reviewed-by: Ingo Molnar [off-list ref]

Great! Thanks for the suggestions and reviews. :)

-Kees

-- 
Kees Cook
Chrome OS Security