2022-02-09 08:12:39

by Mimi Zohar

[permalink] [raw]
Subject: Re: MAINTAINERS update suggestion (subject change)

(Updated subject line)

On Tue, 2022-02-08 at 10:28 +0100, Jarkko Sakkinen wrote:
> On Wed, Jan 26, 2022 at 05:06:09PM -0500, Mimi Zohar wrote:

> > > Mimi brought up that we need a MAINTAINERS update for this and also
> > > .platform.
> > >
> > > We have these:
> > >
> > > - KEYS/KEYRINGS
> > > - CERTIFICATE HANDLING
> > >
> > > I would put them under KEYRINGS for now and would not consider further
> > > subdivision for the moment.
> >
> > IMA has dependencies on the platform_certs/ and now on the new .machine
> > keyring. Just adding "F: security/integrity/platform_certs/" to the
> > KEYS/KEYRINGS record, ignores that dependency. The discussion wouldn't
> > even be on the linux-integrity mailing list.
> >
> > Existing requirement:
> > - The keys on the .platform keyring are limited to verifying the kexec
> > image.
> >
> > New requirements based on Eric Snowbergs' patch set:
> > - When IMA_KEYRINGS_PERMIT_SIGNED_BY_BUILTIN_OR_SECONDARY is enabled,
> > the MOK keys will not be loaded directly onto the .machine keyring or
> > indirectly onto the .secondary_trusted_keys keyring.
> >
> > - Only when a new IMA Kconfig explicitly allows the keys on the
> > .machine keyrings, will the CA keys stored in MOK be loaded onto the
> > .machine keyring.
> >
> > Unfortunately I don't think there is any choice, but to define a new
> > MAINTAINERS entry. Perhaps something along the lines of:
> >
> > KEYS/KEYRINGS_INTEGRITY
> > M: Jarkko Sakkinen <[email protected]>
> > M: Mimi Zohar <[email protected]>
> > L: [email protected]
> > L: [email protected]
> > F: security/integrity/platform_certs
>
> WFM. BTW, the patches are now in my tree:
>
> git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd.git
>
> I can add any tags requested. I'll mirror this at some point to linux-next.

Thanks, Jarkko.

--
Mimi