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=-0.9 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS autolearn=no 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 19B95C38A2B for ; Fri, 17 Apr 2020 23:00:59 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E8EB3214D8 for ; Fri, 17 Apr 2020 23:00:58 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="eNBLzQuU" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727842AbgDQXA4 (ORCPT ); Fri, 17 Apr 2020 19:00:56 -0400 Received: from us-smtp-delivery-1.mimecast.com ([205.139.110.120]:24520 "EHLO us-smtp-1.mimecast.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726167AbgDQXAz (ORCPT ); Fri, 17 Apr 2020 19:00:55 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1587164454; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=7KGdTF+NLD8Xhkwl5nwHw+l3VQ9HqFkDHm1TE3ZyggA=; b=eNBLzQuU8Ikz3QWGUauuojkNSu+inZ1bXJLGAN7PMyVV/7M722jq5Jt3yw1T2rVWjgA0du y3LG51hmWvrQCuDjNyXLGsOeJI3owsZtG6A6ymqm98MzaLTWHzJDMUhE3v6vAFXUmSkgDk 4gAP2LWzmSwEQOn73RIHnvFjsQ9P7xk= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-156-Z6jo86v3Ng6PycfQ4J7_1g-1; Fri, 17 Apr 2020 19:00:50 -0400 X-MC-Unique: Z6jo86v3Ng6PycfQ4J7_1g-1 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.13]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 8094BDB60; Fri, 17 Apr 2020 23:00:48 +0000 (UTC) Received: from elisabeth (unknown [10.36.110.53]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 03C479E0D4; Fri, 17 Apr 2020 23:00:43 +0000 (UTC) Date: Sat, 18 Apr 2020 01:00:38 +0200 From: Stefano Brivio To: Hillf Danton Cc: Florian Westphal , syzbot , coreteam@netfilter.org, davem@davemloft.net, kadlec@netfilter.org, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, netfilter-devel@vger.kernel.org, pablo@netfilter.org, syzkaller-bugs@googlegroups.com Subject: Re: WARNING in nf_nat_unregister_fn Message-ID: <20200418010038.57d5e5cf@elisabeth> In-Reply-To: <20200417213348.GC32392@breakpoint.cc> References: <000000000000490f1005a375ed34@google.com> <20200417094250.21872-1-hdanton@sina.com> <20200417213348.GC32392@breakpoint.cc> Organization: Red Hat MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Hillf, On Fri, 17 Apr 2020 23:33:48 +0200 Florian Westphal wrote: > Hillf Danton wrote: > > In case of failure to register NFPROTO_IPV4, unregister NFPROTO_IPV6 > > instead of ops->pf (== NFPROTO_INET). Note that the patch you sent didn't reach any list you probably sent it to (netfilter-devel, netdev, lkml). I'm seeing it just because Florian answered. This is probably the same issue we had with your openvswitch patch last year. By the way, the IP address you used last time is now reported as being "blocked" by: zen.spamhaus.org pbl.spamhaus.org I guess vger might filter using Spamhaus lists (including their "PBL"), which won't let your email through if you're running a mail server with an dynamic IP address. I don't support this practice, but this might be the issue. You can quickly get an overview of blacklists your address might be on at e.g.: http://www.anti-abuse.org/ -- Stefano