Re: [PATCH] printk: Monitor change of console loglevel.

[Tetsuo Handa]

Well, the culprit of this problem might be syz_execute_func().

  https://twitter.com/ed_maste/status/1131165065485398016

Then, blacklisting specific syscalls/arguments might not work.
We will need to guard specific paths on the kernel side using
some kernel config option...

Anyway, Andrew, will you send this patch to linux-next.git ?
syzbot would identify which syz_execute_func() call is triggering
this problem.