Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753535AbcJKOAq (ORCPT ); Tue, 11 Oct 2016 10:00:46 -0400 Received: from mail-qk0-f180.google.com ([209.85.220.180]:33554 "EHLO mail-qk0-f180.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751905AbcJKOAn (ORCPT ); Tue, 11 Oct 2016 10:00:43 -0400 From: Aaron Conole To: Michal Kubecek Cc: David Miller , torvalds@linux-foundation.org, fw@strlen.de, viro@zeniv.linux.org.uk, akpm@linux-foundation.org, axboe@fb.com, tytso@mit.edu, cl@linux.com, pablo@netfilter.org, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, netdev@vger.kernel.org, netfilter-devel@vger.kernel.org Subject: Re: slab corruption with current -git References: <20161009.235745.860945462339053703.davem@davemloft.net> <20161010.042401.637964142015887598.davem@davemloft.net> <20161011131709.GB24682@unicorn.suse.cz> Date: Tue, 11 Oct 2016 09:55:15 -0400 In-Reply-To: <20161011131709.GB24682@unicorn.suse.cz> (Michal Kubecek's message of "Tue, 11 Oct 2016 15:17:09 +0200") Message-ID: User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/25.1.50 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 690 Lines: 21 Michal Kubecek writes: > On Mon, Oct 10, 2016 at 04:24:01AM -0400, David Miller wrote: >> From: David Miller >> Date: Sun, 09 Oct 2016 23:57:45 -0400 (EDT) >> >> This means that the netns is possibly getting freed up before we >> unregister the netfilter hooks. > > Sounds a bit like the issue discussed here: > > https://marc.info/?l=netfilter-devel&m=146980917627262&w=2 > > Could it be (partly) the same race condition? It looks like it's possible. It appears that there could be a long-standing race between these. I'll look into it more carefully, and discuss with Pablo and Florian when they're situated from netdev conference. -Aaron