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Re: Adding a boot flag for No ASLR



On Tue, Jul 24, 2018 at 06:44:52AM +0200, Martin Husemann wrote:
> On Mon, Jul 23, 2018 at 11:02:04PM +0200, Kamil Rytarowski wrote:
> > We need to maintain a function to translate certain ranges to
> > shadow/meta/origin/etc. We cannot map arbitrarily wide ranges to them.
> 
> Can we extend the pax note (or create a new one) and make the sanitizers
> link that in? Then make the kernel reserve some (random) VA spaces
> (details of what is needed in the note) and provide some way for the
> sanitizers to find that special VAs (like from the aux vector)?

Yes, all sanitized binaries should contain a note if they require
certain fixed mappings to be reserved. I don't think there is *any* need
to disable ASLR beyond that.

Joerg


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