linux-kernel - Re: [PATCH 1/4] modsign: Abort modules

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Date:	Tue, 19 May 2015 09:54:15 -0400
From:	Mimi Zohar <zohar@...ux.vnet.ibm.com>
To:	"Woodhouse, David" <david.woodhouse@...el.com>
Cc:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"mmarek@...e.cz" <mmarek@...e.cz>,
	"keyrings@...ux-nfs.org" <keyrings@...ux-nfs.org>,
	"seth.forshee@...onical.com" <seth.forshee@...onical.com>,
	"dmitry.kasatkin@...il.com" <dmitry.kasatkin@...il.com>,
	"rusty@...tcorp.com.au" <rusty@...tcorp.com.au>,
	"dhowells@...hat.com" <dhowells@...hat.com>,
	"linux-security-module@...r.kernel.org" 
	<linux-security-module@...r.kernel.org>,
	"mcgrof@...e.com" <mcgrof@...e.com>,
	"mjg59@...f.ucam.org" <mjg59@...f.ucam.org>
Subject: Re: [PATCH 1/4] modsign: Abort modules_install when signing fails

On Tue, 2015-05-19 at 12:57 +0000, Woodhouse, David wrote:
> On Tue, 2015-05-19 at 07:45 -0400, Mimi Zohar wrote:
> > 
> > /bin/sh: line 1: 22771 Segmentation fault      (core dumped) 
> > scripts/sign-file "sha256" "pkcs11:manufacturer=piv_II;id=%01" 
> > ./signing_key.x509 /lib/modules/4.1.0-rc1
> > -test+/kernel/net/ipv6/netfilter/ip6table_filter.ko
> > /home/zohar/src/kernel/linux-integrity/scripts/Makefile.modinst:35: 
> > recipe for target 'net/ipv6/netfilter/ip6table_filter.ko' failed
> > make[2]: *** [net/ipv6/netfilter/ip6table_filter.ko] Error 139
> 
> Hm, can you get a backtrace of that? It would be impressive if that
> were a bug in the very few lines of code we have in sign-file.c to
> handle the engine; I suspect it's more likely to be elsewhere in the
> OpenSSL/p11-kit-proxy/OpenSC/pcsc stack.
> 
> It only happens with 'make -j', yes?

To be exact, "-j 10".

Mimi


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