linux-kernel - Re: [GIT PULL] MODSIGN: Use PKCS#7 for module signatures

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Message-ID: <6447.1438074191@warthog.procyon.org.uk>
Date:	Tue, 28 Jul 2015 10:03:11 +0100
From:	David Howells <dhowells@...hat.com>
To:	Andy Lutomirski <luto@...capital.net>
Cc:	dhowells@...hat.com, Andy Lutomirski <luto@...nel.org>,
	James Morris <jmorris@...ei.org>,
	David Woodhouse <dwmw2@...radead.org>,
	Luis Rodriguez <mcgrof@...il.com>, keyrings@...ux-nfs.org,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	LSM List <linux-security-module@...r.kernel.org>
Subject: Re: [GIT PULL] MODSIGN: Use PKCS#7 for module signatures

Andy Lutomirski <luto@...capital.net> wrote:

> How would it cause kexec problems?  I can only see it being a problem
> if Authenticode can't handle authattrs, right?  There shouldn't be any
> legacy PKCS7 kexec images whatsoever, because no existing kernel will
> boot them or generate them.

I was wondering if it is possible to get an mscode message that doesn't have
authattrs in it.  I guess we can just ignore the possibility until the matter
arises, if it does, and deal with it then as appropriate.

David
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