[PATCH v5 07/14] module: Make module authentication usable without MODULE_SIG

[Thomas Weißschuh]

On 2026-05-26 12:53:22+0200, Petr Pavlu wrote:
> On 5/5/26 11:05 AM, Thomas Weißschuh wrote:
> > The module authentication functionality will also be used by the
> > hash-based module authentication. Split it out from CONFIG_MODULE_SIG
> > so it is usable by both.
> > 
> > Signed-off-by: Thomas Weißschuh <linux at weissschuh.net>
> > [...]
> > diff --git a/kernel/module/Kconfig b/kernel/module/Kconfig
> > index f535181e0d98..84297da666ff 100644
> > --- a/kernel/module/Kconfig
> > +++ b/kernel/module/Kconfig
> > @@ -271,9 +271,12 @@ config MODULE_SIG
> >  	  debuginfo strip done by some packagers (such as rpmbuild) and
> >  	  inclusion into an initramfs that wants the module size reduced.
> >  
> > +config MODULE_AUTH
> > +	def_bool MODULE_SIG
> > +
> >  config MODULE_SIG_FORCE
> >  	bool "Require modules to be validly signed"
> > -	depends on MODULE_SIG
> > +	depends on MODULE_AUTH
> >  	help
> >  	  Reject unsigned modules or signed modules for which we don't have a
> >  	  key.  Without this, such modules will simply taint the kernel.
> 
> Should MODULE_SIG_FORCE be renamed to MODULE_AUTH_FORCE, along with
> renaming the sig_enforce functionality in kernel/module/auth.c to
> auth_enforce?

Given that it is a user-visible symbol we'll need to be a bit careful
not to break existing configurations.
I'll try to use the new "transitional" kconfig attribute.


Thomas