[PATCH V34 19/29] Lock down module params that specify hardware parameters (eg. ioport)

Matthew Garrett mjg59 at google.com
Thu Jun 27 15:30:52 UTC 2019


On Wed, Jun 26, 2019 at 6:49 PM Daniel Axtens <dja at axtens.net> wrote:
>
> Matthew Garrett <matthewgarrett at google.com> writes:
> > +     if (kp->flags & KERNEL_PARAM_FL_HWPARAM &&
> > +         security_locked_down(LOCKDOWN_MODULE_PARAMETERS))
> > +             return false;
> > +     return true;
> >  }
>
> Should this test occur before tainting the kernel?

Seems reasonable.



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