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

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20121031174919.51f1518d@pyramind.ukuu.org.uk>
Date:	Wed, 31 Oct 2012 17:49:19 +0000
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	Matthew Garrett <mjg59@...f.ucam.org>
Cc:	Jiri Kosina <jkosina@...e.cz>, Josh Boyer <jwboyer@...il.com>,
	linux-kernel@...r.kernel.org,
	linux-security-module@...r.kernel.org, linux-efi@...r.kernel.org
Subject: Re: [RFC] Second attempt at kernel secure boot support

On Wed, 31 Oct 2012 17:37:50 +0000
Matthew Garrett <mjg59@...f.ucam.org> wrote:

> On Wed, Oct 31, 2012 at 05:39:19PM +0000, Alan Cox wrote:
> > On Wed, 31 Oct 2012 17:17:43 +0000
> > Matthew Garrett <mjg59@...f.ucam.org> wrote:
> > > By booting a signed kernel, not turning on swap and writing directly to 
> > > the swap partition.
> > 
> > Ok so the actual problem is that you are signing kernels that allow the
> > user to skip the S4 resume check ?
> 
> What S4 resume check?

One you would add .. but no I'm wrong there - its a problem at the
suspend point so you do need a signature for it. Oh well yet another
reason it's nto useful.

Alan
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/