From mboxrd@z Thu Jan  1 00:00:00 1970
From: Adam Zimmerman <adam@digitalpirate.ca>
Subject: Re: [PATCH] opensmtpd: Fix crash during authentication
Date: Tue, 12 Jun 2018 11:59:21 -0700
Message-ID: <5718fe6b-89af-9a5a-8c90-1ff7e9a7bc53@digitalpirate.ca>
References: <be135a88-319c-74f1-f0d9-2fb3d30ef262@digitalpirate.ca>
	<8736xs8jvx.fsf@lassieur.org> <87tvq77v8s.fsf@lassieur.org>
Mime-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 8bit
Return-path: <guix-devel-bounces+gcggd-guix-devel=m.gmane.org@gnu.org>
Received: from eggs.gnu.org ([2001:4830:134:3::10]:33081)
	by lists.gnu.org with esmtp (Exim 4.71)
	(envelope-from <adam@digitalpirate.ca>) id 1fSoVr-0003im-NN
	for guix-devel@gnu.org; Tue, 12 Jun 2018 14:59:28 -0400
Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71)
	(envelope-from <adam@digitalpirate.ca>) id 1fSoVo-0005VQ-KH
	for guix-devel@gnu.org; Tue, 12 Jun 2018 14:59:27 -0400
Received: from dusk.digitalpirate.ca ([104.37.196.77]:60894)
	by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32)
	(Exim 4.71) (envelope-from <adam@digitalpirate.ca>)
	id 1fSoVo-0005Tf-Am
	for guix-devel@gnu.org; Tue, 12 Jun 2018 14:59:24 -0400
In-Reply-To: <87tvq77v8s.fsf@lassieur.org>
Content-Language: en-GB
List-Id: "Development of GNU Guix and the GNU System distribution."
	<guix-devel.gnu.org>
List-Unsubscribe: <https://lists.gnu.org/mailman/options/guix-devel>,
	<mailto:guix-devel-request@gnu.org?subject=unsubscribe>
List-Archive: <http://lists.gnu.org/archive/html/guix-devel/>
List-Post: <mailto:guix-devel@gnu.org>
List-Help: <mailto:guix-devel-request@gnu.org?subject=help>
List-Subscribe: <https://lists.gnu.org/mailman/listinfo/guix-devel>,
	<mailto:guix-devel-request@gnu.org?subject=subscribe>
Errors-To: guix-devel-bounces+gcggd-guix-devel=m.gmane.org@gnu.org
Sender: "Guix-devel" <guix-devel-bounces+gcggd-guix-devel=m.gmane.org@gnu.org>
To: =?UTF-8?Q?Cl=c3=a9ment_Lassieur?= <clement@lassieur.org>
Cc: guix-devel@gnu.org

On 2018-06-12 10:46 AM, Clément Lassieur wrote:
> Clément Lassieur <clement@lassieur.org> writes:
> 
>> Hi Adam,
>>
>> Adam Zimmerman <adam@digitalpirate.ca> writes:
>>
>>> Hi all,
>>>
>>> I'm running a mail server that I recently migrated to GuixSD, and I
>>> found this issue when trying to get opensmtpd set up.
>>>
>>> When using authentication from a table, opensmtpd would crash whenever I
>>> tried to authenticate. I found this patch which fixes the issue. It's
>>> already been merged into the opensmtpd master branch[1], and will be
>>> fixed in the next release which apparently will be around
>>> October/November this year.
>>>
>>> [1] https://github.com/OpenSMTPD/OpenSMTPD/pull/835
> 
> This person [1] says that it can only be reproduced if linking with -pie
> / configuring with --with-pie.  It doesn't seem to me our case.
> 
> [1] https://github.com/OpenSMTPD/OpenSMTPD/issues/833#issuecomment-367368007
> 

Very strange, since I only became aware of the issue after running into
it on GuixSD (I was using Ubuntu/Postfix before). And applying the patch
definitely fixed the problem for me. So weird...