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 00611C433DF for ; Tue, 4 Aug 2020 19:10:10 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D88FE2086A for ; Tue, 4 Aug 2020 19:10:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726986AbgHDTKI (ORCPT ); Tue, 4 Aug 2020 15:10:08 -0400 Received: from mail-il1-f198.google.com ([209.85.166.198]:47157 "EHLO mail-il1-f198.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726026AbgHDTKI (ORCPT ); Tue, 4 Aug 2020 15:10:08 -0400 Received: by mail-il1-f198.google.com with SMTP id e12so4402448ile.14 for ; Tue, 04 Aug 2020 12:10:07 -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=8DGWtpZeXz6g3gc4QGhBE15iscZLRy4QscvcEIUaaf0=; b=JPZp2hBRL1VrjXHzEvY8Lt2WdQEJ9RcBDQT8RodHNtJ/2FJH79kmUVO+E73bY86ZnI XqriFC5LZMfquFdqVpYM+zWMhiCRN+sKyEQd+qBjDNhtLoX7PHh6WAMJltez3lubCrUu GNOIJ6kRqFXtNLHcE//eSEQBHBASe8PkQp2m70gToQZadQvMVwfGS8qgGKshMgAvHa1V /JkEI6/6XJSet6sJOaRgbkLFoj+nHSZFIyHaK+8lv5lfc2YKo/pxGP2sj+bP4HrOPh8+ h8uv7Elo0/o5r/psU6cqpHzg0oXNr4xCxwzJw3oooUicK2vZds27yw0ojP7++5rmhwoo YI3w== X-Gm-Message-State: AOAM532jMjbdN71r0FcQHfBP1MzoxN8FltLfRdqB6LPT0MAgKtEovxF7 Sf/KONnA+7qLXawty4zOeCz/skstPUU321Vp4tGe2nicplx6 X-Google-Smtp-Source: ABdhPJzIGgmU9Wneouek0XdGIUbP14uLYINaBLupAaVxNQzLpFgOJpeyfs/OdYUytzp5So9OVrIgzT55MOsTBG1WFe6X7kkZah6p MIME-Version: 1.0 X-Received: by 2002:a6b:700d:: with SMTP id l13mr6590268ioc.135.1596568207215; Tue, 04 Aug 2020 12:10:07 -0700 (PDT) Date: Tue, 04 Aug 2020 12:10:07 -0700 In-Reply-To: <00000000000055881a05ac0f0122@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000d9d1aa05ac12001b@google.com> Subject: Re: WARNING: suspicious RCU usage in ovs_flow_tbl_destroy 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=17461dea900000 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=14c61dea900000 console output: https://syzkaller.appspot.com/x/log.txt?x=10c61dea900000 kernel config: https://syzkaller.appspot.com/x/.config?x=91a13b78c7dc258d dashboard link: https://syzkaller.appspot.com/bug?extid=c0eb9e7cdde04e4eb4be syz repro: https://syzkaller.appspot.com/x/repro.syz?x=172cd3d4900000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=11fbd342900000 Reported-by: syzbot+c0eb9e7cdde04e4eb4be@syzkaller.appspotmail.com Fixes: 9bf24f594c6a ("net: openvswitch: make masks cache size configurable") For information about bisection process see: https://goo.gl/tpsmEJ#bisection