From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.9 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,URIBL_BLOCKED,USER_AGENT_NEOMUTT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 18027C65BB3 for ; Mon, 10 Dec 2018 12:55:41 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id CC54C20855 for ; Mon, 10 Dec 2018 12:55:40 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org CC54C20855 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=strlen.de Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727003AbeLJMzj (ORCPT ); Mon, 10 Dec 2018 07:55:39 -0500 Received: from Chamillionaire.breakpoint.cc ([146.0.238.67]:57786 "EHLO Chamillionaire.breakpoint.cc" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726602AbeLJMzi (ORCPT ); Mon, 10 Dec 2018 07:55:38 -0500 Received: from fw by Chamillionaire.breakpoint.cc with local (Exim 4.89) (envelope-from ) id 1gWL5y-0007nG-Qx; Mon, 10 Dec 2018 13:55:34 +0100 Date: Mon, 10 Dec 2018 13:55:34 +0100 From: Florian Westphal To: syzbot Cc: davem@davemloft.net, herbert@gondor.apana.org.au, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, steffen.klassert@secunet.com, syzkaller-bugs@googlegroups.com Subject: Re: WARNING in xfrm_policy_inexact_gc_tree Message-ID: <20181210125534.kkqm6ulfehm4kzso@breakpoint.cc> References: <000000000000d58636057ca63247@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <000000000000d58636057ca63247@google.com> User-Agent: NeoMutt/20170113 (1.7.2) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org syzbot wrote: > > HEAD commit: 74c4a24df7ca Add linux-next specific files for 20181207 > git tree: linux-next > console output: https://syzkaller.appspot.com/x/log.txt?x=17bbea7d400000 > kernel config: https://syzkaller.appspot.com/x/.config?x=6e9413388bf37bed > dashboard link: https://syzkaller.appspot.com/bug?extid=0b2f1bc876d301440d44 > compiler: gcc (GCC) 8.0.1 20180413 (experimental) > > Unfortunately, I don't have any reproducer for this crash yet. > > IMPORTANT: if you fix the bug, please add the following tag to the commit: > Reported-by: syzbot+0b2f1bc876d301440d44@syzkaller.appspotmail.com > > IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready > IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready > IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready > IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready > 8021q: adding VLAN 0 to HW filter on device team0 > WARNING: CPU: 0 PID: 13116 at net/xfrm/xfrm_policy.c:1066 > xfrm_policy_inexact_gc_tree+0x233/0x280 net/xfrm/xfrm_policy.c:1066 This means we're exiting from net namespace, but for some reason policies would be left behind. At this point the storage should only contain empty nodes, as all policies are supposed to be gone. I'll have a look.