Date: Tue, 12 Dec 2017 13:00:31 -0800
From: Eric Biggers <ebiggers3@gmail.com>
To: Steffen Klassert <steffen.klassert@secunet.com>
Cc: syzbot 
        <bot+68bf59b49142965d6454163d7341e617a90139dc@syzkaller.appspotmail.com>,
        davem@davemloft.net, herbert@gondor.apana.org.au,
        linux-kernel@vger.kernel.org, netdev@vger.kernel.org,
        syzkaller-bugs@googlegroups.com
Subject: Re: KASAN: stack-out-of-bounds Read in xfrm_state_find (3)
Message-ID: <20171212210031.GC185376@gmail.com>
References: <089e082d0cb803507c055e6d5318@google.com>
 <001a11445ed4514b28055e947b48@google.com>
 <20171201072743.47ztbmrql7ub327u@gauss3.secunet.de>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <20171201072743.47ztbmrql7ub327u@gauss3.secunet.de>
User-Agent: Mutt/1.5.21 (2010-09-15)
Sender: linux-kernel-owner@vger.kernel.org
Content-Length: 1035
Lines: 29

Hi Steffen,

On Fri, Dec 01, 2017 at 08:27:43AM +0100, Steffen Klassert wrote:
> On Wed, Nov 22, 2017 at 08:05:00AM -0800, syzbot wrote:
> > syzkaller has found reproducer for the following crash on
> > 0c86a6bd85ff0629cd2c5141027fc1c8bb6cde9c
> > git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git/master
> > compiler: gcc (GCC) 7.1.1 20170620
> > .config is attached
> > Raw console output is attached.
> > C reproducer is attached
> > syzkaller reproducer is attached. See https://goo.gl/kgGztJ
> > for information about syzkaller reproducers
> > 
> > 
> > BUG: KASAN: stack-out-of-bounds in xfrm_state_find+0x30fc/0x3230
> > net/xfrm/xfrm_state.c:1051
> > Read of size 4 at addr ffff8801ccaa7af8 by task syzkaller231684/3045
> 
> The patch below should fix this. I plan to apply it to the ipsec tree
> after some advanced testing.
> 
> Subject: [PATCH RFC] xfrm: Fix stack-out-of-bounds with misconfigured transport
>  mode policies.
> 

Are you still planning to apply this?  syzbot is still hitting this bug.

Eric