On Tue, Mar 17, 2020 at 1:11 PM Chris Murphy <lists(a)colorremedies.com>
On Thu, Feb 27, 2020 at 5:54 AM Justin Forbes
> No, nothing has changed here, loading a proprietary module has marked
the kernel as tainted for a very long time. If you went back to 2.6
kernels, you would see a similar message about the kernel being tainted.
The message has expanded a bit over the years as we check for things like
module signatures, etc, but the end result is the same the taint flag is P
for proprietary module.
> Unless the user has gone to the trouble of self signing a proprietary
module, and adding that key to the keyring, UEFI secure boot had to be
disabled to even load the module. Module signatures are used and checked
outside of secure boot as well. Still, even if they do sign the module and
add that key to enable the module to work with secure boot, the kernel will
be tainted P.
Is it technically possible for the Fedora signing key to be used to
sign a 3rd party key, thereby allowing the loading of 3rd party
modules signed with that 3rd party key?
Policy wise, is it likely that could be done? e.g. trusting the RPM
Fusion Nvidia and Broadcom kernel modules?
This is something that will *not* be done or considered. If those third
repositories wanted to, they could set up their own key and signing
process, and simply ask the users to import their key with detailed
instructions, but it has to be a conscious effort on the part of the user
to extend that trust.
On the one hand Fedora is supporting UEFI Secure Boot out of the box,
ostensibly we want users to leave it enabled. But because
modules is tedious, possibly quite a lot of users are just disabling
UEFI Secure Boot. I'm not sure if it's possible to make this work out
of the box for users, but it would be nice to not just make it a
The act of generating the key and getting it into the key ring is a bit
tedious, but this is something that you only need to do once. It should be
tedious, it is not a step to be taken lightly. The act of self signing a
module with that key is not difficult at all. It can certainly be automated
if you feel comfortable with the level of security that such automation