+++ Kristen Carlson Accardi [17/07/20 10:00 -0700]:
Introduce a new config option to allow modules to be re-ordered
by function. This option can be enabled independently of the
kernel text KASLR or FG_KASLR settings so that it can be used
by architectures that do not support either of these features.
This option will be selected by default if CONFIG_FG_KASLR is
selected.
If a module has functions split out into separate text sections
(i.e. compiled with the -ffunction-sections flag), reorder the
functions to provide some code diversification to modules.
Signed-off-by: Kristen Carlson Accardi <kris...@linux.intel.com>
Reviewed-by: Kees Cook <keesc...@chromium.org>
Acked-by: Ard Biesheuvel <a...@kernel.org>
Tested-by: Ard Biesheuvel <a...@kernel.org>
Reviewed-by: Tony Luck <tony.l...@intel.com>
Tested-by: Tony Luck <tony.l...@intel.com>
Hi Kristen!
I've boot tested this on x86, (un)loaded some modules, and checked
their resulting section addresses as a quick sanity test. Feel free
to add my:
Acked-by: Jessica Yu <j...@kernel.org>
Tested-by: Jessica Yu <j...@kernel.org>
Thank you!
Jessica
