On Wed, Oct 03, 2018 at 06:52:40PM +0200, Jann Horn wrote:

On Wed, Oct 3, 2018 at 6:32 PM Eugene Syromiatnikov [off-list ref] wrote:

quoted

I'm not sure, however, whether such a change that provides no ability
to configure or affect it will go well with all the supported
architectures.

Is there a concrete reason why you think an architecture might not
like this? As far as I can tell, the virtual address space overhead
should be insignificant even for 32-bit systems.

Not really, and not architectures per se, but judging by some past
experiences with enabling ASLR, I would expect that all kinds of weird
applications may start to behave in all kinds of strange ways.

Not that I have anything more than this doubt, however; but this sort of
change without any ability to tune or revert it still looks unusual to me.