Re: [GIT PULL] Kernel lockdown for secure boot

[Matthew Garrett]

On Tue, Apr 3, 2018 at 4:39 PM Linus Torvalds
<torvalds@xxxxxxxxxxxxxxxxxxxx>
wrote:

> On Tue, Apr 3, 2018 at 4:26 PM, Linus Torvalds
> <torvalds@xxxxxxxxxxxxxxxxxxxx> wrote:
> >
> > Magically changing kernel behavior depending on some subtle and often
> > unintentional bootup behavior detail is completely idiotic.

> Another way of looking at this: if lockdown is a good idea to enable
> when you booted using secure boot, then why isn't it a good idea when
> you *didn't* boot using secure boot?

Because it's then trivial to circumvent and the restrictions aren't worth
the benefit.