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=-4.0 required=3.0 tests=BAYES_00,FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED 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 7F714C433DF for ; Wed, 5 Aug 2020 00:24:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6B82822CB2 for ; Wed, 5 Aug 2020 00:24:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725921AbgHEAYH (ORCPT ); Tue, 4 Aug 2020 20:24:07 -0400 Received: from mail-io1-f71.google.com ([209.85.166.71]:45669 "EHLO mail-io1-f71.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725904AbgHEAYG (ORCPT ); Tue, 4 Aug 2020 20:24:06 -0400 Received: by mail-io1-f71.google.com with SMTP id p17so27231519iod.12 for ; Tue, 04 Aug 2020 17:24:05 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:date:in-reply-to:message-id:subject :from:to; bh=YcEYobWe0gtmbwSjs0eeDwSC4BGhccPAeLKXxasmpXw=; b=RFR81iCoG3SvWBFcNlbZAX0Eu6Eik6nSOuKRqMaCwNcwz8dtxWHK9UndjVpZi4304w QdXfmFlZupP6PnPmj/owDOMPItpCDwUsUKs7bi5fu4gShHkaw71genheKJdCxLHXt55q 1YMmUPI4jw3nDfespliE3ArjbTTHpjbjFUFr0ot5CA4noRD+mqDMK4+eFr2j9kLA0PRd 7RIm8wDN0ZZSoZFa0TZFqZ8PIrV+v+d4TnBkq/uZeCl2rc8LC2jO0qmd1YHAijMlcS4p XN82UdxB2hgyPtJFQ26jU40VoFyilJQ5SMlmAOtcXGkBHFjeQWVmsQRYZOMWqRljaew+ 4ZEg== X-Gm-Message-State: AOAM532ejaz5VaAhxyS1LCXf+pKsf2+l7vn4fZL2S1e6PhISzeUn8qit gNzbSJA4ZBw1XfZVABLu4o00dl2d0hw4U1TwwAIKn0BNBoeW X-Google-Smtp-Source: ABdhPJwuZalmKeWO+pHiPWSqqtn5gfgs4D6jBqCQuwsKDkM2LSlSrPL+ZsNuPLhlwiwWkpFQK5ByESHxEN/Ub93XP1IFRfUCg0KC MIME-Version: 1.0 X-Received: by 2002:a05:6638:1649:: with SMTP id a9mr979747jat.115.1596587045563; Tue, 04 Aug 2020 17:24:05 -0700 (PDT) Date: Tue, 04 Aug 2020 17:24:05 -0700 In-Reply-To: <0000000000006d871805ac0f2416@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000b4484105ac16639c@google.com> Subject: Re: WARNING: suspicious RCU usage in ovs_flow_tbl_masks_cache_size From: syzbot To: davem@davemloft.net, dev@openvswitch.org, echaudro@redhat.com, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, pabeni@redhat.com, pshelar@ovn.org, syzkaller-bugs@googlegroups.com, xiangxia.m.yue@gmail.com Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org syzbot has bisected this issue to: commit 9bf24f594c6acf676fb8c229f152c21bfb915ddb Author: Eelco Chaudron Date: Fri Jul 31 12:21:34 2020 +0000 net: openvswitch: make masks cache size configurable bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=110e06dc900000 start commit: 2f631133 net: Pass NULL to skb_network_protocol() when we .. git tree: net-next final oops: https://syzkaller.appspot.com/x/report.txt?x=130e06dc900000 console output: https://syzkaller.appspot.com/x/log.txt?x=150e06dc900000 kernel config: https://syzkaller.appspot.com/x/.config?x=91a13b78c7dc258d dashboard link: https://syzkaller.appspot.com/bug?extid=f612c02823acb02ff9bc syz repro: https://syzkaller.appspot.com/x/repro.syz?x=10e8430a900000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=123549fc900000 Reported-by: syzbot+f612c02823acb02ff9bc@syzkaller.appspotmail.com Fixes: 9bf24f594c6a ("net: openvswitch: make masks cache size configurable") For information about bisection process see: https://goo.gl/tpsmEJ#bisection