Re: [kernel-hardening] Re: [PATCH v5 next 5/5] net: modules: use request_module_cap() to load 'netdev-%s' modules

[Linus Torvalds]

On Wed, Nov 29, 2017 at 4:44 PM, Kees Cook <keescook@xxxxxxxxxxxx> wrote:
>
>> That mainly leaves the protocol ones we need to look out for, I suspect.
>
> This is where a lot of the exposure really comes from. socket()
> triggers a bunch of stuff, but doesn't have an obvious privilege
> associated with it... while it already does the name templates, maybe
> add request_module_socket() just to explicitly mark it?

.. and this is where I'd expect that maybe we'd need some hackery.

Even including some ad-hoc rules like "this module is actually
maintained", possibly even with some /sys interface to extend/reduce
that set.

But maybe it's not even that bad.

                Linus