kernel panic: MAC Initialization failed. (3)

Tetsuo Handa penguin-kernel at
Mon Mar 11 13:45:55 UTC 2019

F.Y.I. Nothing is wrong with that commit. That commit merely allows enabling TOMOYO and
one of SELinux/Smack/AppArmor at the same time for syzbot's kernel command line options.
This problem will be handled by a patch at
and then updating syzbot to build kernels with this option enabled.

Well, it is wonderful that syzbot started bisecting. ;-)

On 2019/03/11 22:26, syzbot wrote:
> syzbot has bisected this bug to:
> commit 89a9684ea158dd7eef1728be9f0aed9a7d41cf19
> Author: Kees Cook <keescook at>
> Date:   Tue Feb 12 18:23:18 2019 +0000
>     LSM: Ignore "security=" when "lsm=" is specified
> bisection log:
> start commit:   89a9684e LSM: Ignore "security=" when "lsm=" is specified
> git tree:       linux-next
> final crash:
> console output:
> kernel config:
> dashboard link:
> userspace arch: amd64
> syz repro:
> C reproducer:
> Reported-by: syzbot+2ee3f8974c2e7dc69feb at
> Fixes: 89a9684e ("LSM: Ignore "security=" when "lsm=" is specified")

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