linux-kernel - Re: Linux Firmware Signing

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Date:	Mon, 31 Aug 2015 17:05:20 +0100
From:	David Woodhouse <dwmw2@...radead.org>
To:	Mimi Zohar <zohar@...ux.vnet.ibm.com>,
	"Luis R. Rodriguez" <mcgrof@...e.com>
Cc:	David Howells <dhowells@...hat.com>,
	Andy Lutomirski <luto@...capital.net>,
	Kees Cook <keescook@...omium.org>,
	"Roberts, William C" <william.c.roberts@...el.com>,
	"linux-security-module@...r.kernel.org" 
	<linux-security-module@...r.kernel.org>,
	linux-kernel@...r.kernel.org, linux-wireless@...r.kernel.org,
	"james.l.morris@...cle.com" <james.l.morris@...cle.com>,
	"serge@...lyn.com" <serge@...lyn.com>,
	Vitaly Kuznetsov <vkuznets@...hat.com>,
	Paul Moore <paul@...l-moore.com>,
	Eric Paris <eparis@...isplace.org>, selinux@...ho.nsa.gov,
	Stephen Smalley <sds@...ho.nsa.gov>,
	"Schaufler, Casey" <casey.schaufler@...el.com>,
	"Luis R. Rodriguez" <mcgrof@...not-panic.com>,
	Dmitry Kasatkin <dmitry.kasatkin@...il.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Peter Jones <pjones@...hat.com>, Takashi Iwai <tiwai@...e.de>,
	Ming Lei <ming.lei@...onical.com>, Joey Lee <jlee@...e.de>,
	"Vojtěch Pavlík" <vojtech@...e.com>,
	Kyle McMartin <kyle@...nel.org>,
	Seth Forshee <seth.forshee@...onical.com>,
	Matthew Garrett <mjg59@...f.ucam.org>,
	Johannes Berg <johannes@...solutions.net>,
	Julia Lawall <julia.lawall@...6.fr>
Subject: Re: Linux Firmware Signing

On Mon, 2015-08-31 at 10:18 -0400, Mimi Zohar wrote:
> I'm not real happy about it, but since we can't break the existing ABI
> of loading data into the kernel via a buffer, a stop gap method of
> signing and verifying a buffer would be needed.

Actually I think we can. The usermode helper is already being phased
out.

-- 
dwmw2

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