From mboxrd@z Thu Jan 1 00:00:00 1970 From: Patrick McHardy Subject: Re: [PATCH] nf_conntrack_sip: fix by making helper pointers thread-local Date: Thu, 21 Aug 2008 13:28:56 +0200 Message-ID: <48AD5178.4040101@trash.net> References: <20080820200900.GA32237@x200.localdomain> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-15; format=flowed Content-Transfer-Encoding: 7bit Cc: netfilter-devel@vger.kernel.org, netdev@vger.kernel.org To: adobriyan@gmail.com Return-path: In-Reply-To: <20080820200900.GA32237@x200.localdomain> Sender: netdev-owner@vger.kernel.org List-Id: netfilter-devel.vger.kernel.org adobriyan@gmail.com wrote: > Patrick, do I read correctly that ->help hook can run concurrently with itself? > > If yes, apply this patch to fix potential crashes and all sorts of > nasties. > > > > [PATCH] nf_conntrack_sip: de-static helper pointers > > Helper's ->help hook can run concurrently with itself, so iterating over > SIP helpers with static pointer won't work reliably. Crap. Good catch, thanks a lot. Applied and I'll push it to -stable.