From mboxrd@z Thu Jan 1 00:00:00 1970 From: Eric Dumazet Subject: Re: [PATCH net 1/2] ip_tunnel: Fix a memory corruption in ip_tunnel_xmit Date: Wed, 25 Sep 2013 04:56:03 -0700 Message-ID: <1380110163.3165.138.camel@edumazet-glaptop> References: <20130925055418.GV7660@secunet.com> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Cc: David Miller , netdev@vger.kernel.org To: Steffen Klassert Return-path: Received: from mail-pb0-f42.google.com ([209.85.160.42]:45661 "EHLO mail-pb0-f42.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755119Ab3IYL4G (ORCPT ); Wed, 25 Sep 2013 07:56:06 -0400 Received: by mail-pb0-f42.google.com with SMTP id un15so5956748pbc.29 for ; Wed, 25 Sep 2013 04:56:05 -0700 (PDT) In-Reply-To: <20130925055418.GV7660@secunet.com> Sender: netdev-owner@vger.kernel.org List-ID: On Wed, 2013-09-25 at 07:54 +0200, Steffen Klassert wrote: > We might extend the used aera of a skb beyond the total > headroom when we install the ipip header. Fix this by > calling skb_cow_head() unconditionally. > > Signed-off-by: Steffen Klassert > --- > net/ipv4/ip_tunnel.c | 12 ++++++------ > 1 file changed, 6 insertions(+), 6 deletions(-) Do you know or can we find when was the bug introduced ? (commit id and title in your changelog would be really nice) Thanks !