From mboxrd@z Thu Jan 1 00:00:00 1970 From: Pablo Neira Ayuso Subject: Re: [PATCH] netfilter: nf_conntrack_ipv6: Plug sk_buff leak in fragment handling Date: Thu, 20 Jun 2013 11:56:54 +0200 Message-ID: <20130620095654.GC698@localhost> References: <20130619104950.GA1343@gmail.com> <20130620092031.GC2124@breakpoint.cc> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: Phil Oester , netfilter-devel@vger.kernel.org, kaber@trash.net, davem@davemloft.net, security@kernel.org To: Florian Westphal Return-path: Received: from mail.us.es ([193.147.175.20]:35935 "EHLO mail.us.es" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754243Ab3FTJ47 (ORCPT ); Thu, 20 Jun 2013 05:56:59 -0400 Content-Disposition: inline In-Reply-To: <20130620092031.GC2124@breakpoint.cc> Sender: netfilter-devel-owner@vger.kernel.org List-ID: On Thu, Jun 20, 2013 at 11:20:31AM +0200, Florian Westphal wrote: > Phil Oester wrote: > > In commit 4cdd3408 ("netfilter: nf_conntrack_ipv6: improve fragmentation > > handling"), an sk_buff leak was introduced when dealing with reassembled > > packets by grabbing a reference to the original skb instead of the > > reassembled skb. At this point, the leak only impacted conntracks with an > > associated helper. > > David, could you please apply this patch directly in case Pablo doesn't > apply it first? This fixes a remote DoS, so it better hit -stable ASAP. I'll take care of it.