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Subject: Re: Linux 5.1-rc2
To:     Kees Cook <keescook@chromium.org>
Cc:     James Morris <jmorris@namei.org>,
        Randy Dunlap <rdunlap@infradead.org>,
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From:   Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>
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Date:   Thu, 28 Mar 2019 05:30:04 +0900
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On 2019/03/28 4:16, Kees Cook wrote:
> The part I don't understand is what you've said about TOMOYO being
> primary and not wanting the others stackable? That kind of goes
> against the point, but I'm happy to do that if you want it that way.

Automatically enabling multiple legacy major LSMs might result in a confusion like
Jakub encountered. For a few releases from 5.1 (about one year or so?), since
CONFIG_DEFAULT_SECURITY_* will be ignored after CONFIG_LSM is once defined in
their kernel configs, I guess that it is better not to enable TOMOYO automatically
until most people complete migrating from CONFIG_DEFAULT_SECURITY_* to CONFIG_LSM
and get used to use lsm= kernel command line option rather than security= kernel
command line option.