Re: [RFC] Second attempt at kernel secure boot support

From: Vivek Goyal
Date: Fri Nov 02 2012 - 10:55:42 EST


On Thu, Nov 01, 2012 at 10:29:17AM -0400, Eric Paris wrote:
> On Thu, Nov 1, 2012 at 5:59 AM, James Bottomley
> <James.Bottomley@xxxxxxxxxxxxxxxxxxxxx> wrote:
>
> > But that doesn't really help me: untrusted root is an oxymoron.
>
> Imagine you run windows and you've never heard of Linux. You like
> that only windows kernels can boot on your box and not those mean
> nasty hacked up malware kernels. Now some attacker manages to take
> over your box because you clicked on that executable for young models
> in skimpy bathing suits. That executable rewrote your bootloader to
> launch a very small carefully crafted Linux environment. This

Rewrote bootloader on disk so that it gets executed next time? It
will not run as signature will not match.

Thanks
Vivek
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