linux-kernel - Re: [PATCH v2] Allow to exclude specific file types in LoadPin

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Message-ID: <CANRnR9TTCnyfCJ0bFu9F1m_J=31bE30=DASUUKAJByEDWbD4nQ@mail.gmail.com>
Date:   Thu, 30 May 2019 22:54:36 -0700
From:   Ke Wu <mikewu@...gle.com>
To:     Kees Cook <keescook@...omium.org>
Cc:     James Morris <jmorris@...ei.org>, Jonathan Corbet <corbet@....net>,
        "Serge E. Hallyn" <serge@...lyn.com>, linux-doc@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-security-module@...r.kernel.org
Subject: Re: [PATCH v2] Allow to exclude specific file types in LoadPin

Thanks for pushing the patch!


On Thu, May 30, 2019 at 7:23 PM Kees Cook <keescook@...omium.org> wrote:
>
> On Fri, May 31, 2019 at 06:11:44AM +1000, James Morris wrote:
> > On Thu, 30 May 2019, Ke Wu wrote:
> >
> > > Linux kernel already provide MODULE_SIG and KEXEC_VERIFY_SIG to
> > > make sure loaded kernel module and kernel image are trusted. This
> > > patch adds a kernel command line option "loadpin.exclude" which
> > > allows to exclude specific file types from LoadPin. This is useful
> > > when people want to use different mechanisms to verify module and
> > > kernel image while still use LoadPin to protect the integrity of
> > > other files kernel loads.
> > >
> > > Signed-off-by: Ke Wu <mikewu@...gle.com>
> > > ---
> > > Changelog since v1:
> > > - Mark ignore_read_file_id with __ro_after_init.
> > > - Mark parse_exclude() with __init.
> > > - Use ARRAY_SIZE(ignore_read_file_id) instead of READING_MAX_ID.
> >
> > Looks good!
> >
> > Reviewed-by: James Morris <jamorris@...ux.microsoft.com>
>
> Thanks! Applied to my for-next/loadpin branch at
> git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git
> and should be visible in linux-next in a few days.
>
> --
> Kees Cook



-- 
Ke Wu | Software Engineer | mikewu@...gle.com | Google Inc.