linux-kernel - Re: v4.6-rc1 regression bisected, Problem loading in-kernel X.509 certificate (-2)

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Message-ID: <20160503172623.GD20775@cucamonga.audible.transient.net>
Date:	Tue, 3 May 2016 17:26:23 +0000
From:	Jamie Heilman <jamie@...ible.transient.net>
To:	Herbert Xu <herbert@...dor.apana.org.au>
Cc:	David Howells <dhowells@...hat.com>, linux-crypto@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: v4.6-rc1 regression bisected, Problem loading in-kernel X.509
 certificate (-2)

Herbert Xu wrote:
> On Sat, Apr 30, 2016 at 08:32:48AM +0000, Jamie Heilman wrote:
> > I usually build my kernels to require module signatures and use
> > automatic signing.  As of v4.6-rc1 I'm getting this on boot:
> > 
> > Problem loading in-kernel X.509 certificate (-2)
> > 
> > I bisected that to commit d43de6c780a84def056afaf4fb3e66bdaa1efc00
> > (akcipher: Move the RSA DER encoding check to the crypto layer)
> > 
> > For some reason after this commit my system keyring always ends up
> > empty.  I use the deb-pkg make target.  My kernel config can
> > be found at
> > http://audible.transient.net/~jamie/k/modsign.config-4.6.0-rc5-guest
> > 
> > Let me know if you need anything else.
> 
> David, any ideas on this problem? If we can't get a quick fix
> on this then we'll have to revert.
> 
> Jamie, does reverting this patch by itself resolve the problem?

Haven't tried that, given the nature of the change I just assumed
it would break too much, but I'll give it a shot this evening after
work.

-- 
Jamie Heilman                     http://audible.transient.net/~jamie/