linux-kernel - Re: [PATCH] Re: Broken userspace crypto in linux-4.1.18

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Date:	Tue, 23 Feb 2016 16:21:49 -0500
From:	Sasha Levin <sasha.levin@...cle.com>
To:	Milan Broz <gmazyland@...il.com>, "Thomas D." <whissi@...ssi.de>,
	Jiri Slaby <jslaby@...e.cz>,
	Stephan Mueller <smueller@...onox.de>
Cc:	Willy Tarreau <w@....eu>,
	"herbert@...dor.apana.org.au" <herbert@...dor.apana.org.au>,
	"dvyukov@...gle.com" <dvyukov@...gle.com>,
	"stable@...r.kernel.org" <stable@...r.kernel.org>,
	"linux-crypto@...r.kernel.org" <linux-crypto@...r.kernel.org>,
	Greg KH <gregkh@...uxfoundation.org>,
	Ondrej Kozina <okozina@...hat.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] Re: Broken userspace crypto in linux-4.1.18

On 02/23/2016 04:02 PM, Milan Broz wrote:
> On 02/21/2016 05:40 PM, Milan Broz wrote:
>> > On 02/20/2016 03:33 PM, Thomas D. wrote:
>>> >> Hi,
>>> >>
>>> >> FYI: v3.10.97, v3.14.61 and 3.18.27 are also affected.
>>> >>
>>> >> v4.3.6 works. Looks like the patch set is only compatible with >=linux-4.3.
>>> >>
>>> >> v3.12.54 works because it doesn't contain the patch in question.
>> > 
>> > Hi,
>> > 
>> > indeed, because whoever backported this patchset skipped two patches
>> > from series (because of skcipher interface file was introduced later).
> Ping?
> 
> I always thought that breaking userspace is not the way mainline kernel
> operates and here we break even stable tree...
> 
> Anyone planning to release new kernel version with properly backported patches?
> There is already a lot of downstream distro bugs reported.

Hi Milan,

I'd really like to see an ack on your patch by one of the crypto/ maintainers
before putting it into a -stable release.


Thanks,
Sasha