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=-8.7 required=3.0 tests=BAYES_00,FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 76D28C433E1 for ; Sat, 11 Jul 2020 17:24:21 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6427F207D4 for ; Sat, 11 Jul 2020 17:24:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728684AbgGKRYS (ORCPT ); Sat, 11 Jul 2020 13:24:18 -0400 Received: from mail-il1-f198.google.com ([209.85.166.198]:44615 "EHLO mail-il1-f198.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728510AbgGKRYS (ORCPT ); Sat, 11 Jul 2020 13:24:18 -0400 Received: by mail-il1-f198.google.com with SMTP id x2so5992689ila.11 for ; Sat, 11 Jul 2020 10:24:17 -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:message-id:subject:from:to; bh=IeGXPwtj2lsocZhYj09imRNrIavWv4B/gviXUgmP6a4=; b=uOS+h2GR2WS8xk86mmiF48inCu0IzxxILYtbO23NbhEnowdE8fSFn25HQQ0hU79vZ1 OxI6fC2DAec+B/ygN9A95cSSy8j1fg0aFni3gvQ2CvpYwwGbPa2LBS7WiwiC+9oG6JNd HSZ2Xq2Xxk9qPIT87HnYw0Fq0IUYkX8ilV29serUdp9/yxM/WgLyfciIRU4+dlnVmfoc 2r3enLho5GWY1i5CIC6dhPq5O4+2tLiIWSc+6MsvzjVxLEm+lQ4tZS097TCWiAkT5qnO OE1Hf3CXTBwz1B+60EPZypUWhxwyNY6bBRs/9wFUoLXUcp0v8sYx4n1ei00n1MiTBdrr nSKg== X-Gm-Message-State: AOAM532HZKHxIIqFFbnreHv1mIzZ1iDgkX8EXrYkvFh402KF/FZoEJdP Bbsitkzvx+f815EEmwERsYl86KMALFCyB2O3CjzdIwgGx2xp X-Google-Smtp-Source: ABdhPJxaO1pCSySsaIduXc9iXrSEjRgRRv4V2aSfFjff9Q2pVX2H9MA/gZA7sif7lcNU5fsE2CTGnmSeDJcub/k2Df8CHeVubeIF MIME-Version: 1.0 X-Received: by 2002:a92:5fc7:: with SMTP id i68mr16491282ill.126.1594488257247; Sat, 11 Jul 2020 10:24:17 -0700 (PDT) Date: Sat, 11 Jul 2020 10:24:17 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000002c01a305aa2dba34@google.com> Subject: INFO: trying to register non-static key in addrconf_notify From: syzbot To: davem@davemloft.net, kuba@kernel.org, kuznet@ms2.inr.ac.ru, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, syzkaller-bugs@googlegroups.com, yoshfuji@linux-ipv6.org Content-Type: text/plain; charset="UTF-8" Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Hello, syzbot found the following crash on: HEAD commit: 7cc2a8ea Merge tag 'block-5.8-2020-07-01' of git://git.ker.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=102d01a3100000 kernel config: https://syzkaller.appspot.com/x/.config?x=183dd243398ba7ec dashboard link: https://syzkaller.appspot.com/bug?extid=bf9c23e0afdec81d9470 compiler: clang version 10.0.0 (https://github.com/llvm/llvm-project/ c2443155a0fb245c8f17f2c1c72b6ea391e86e81) 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+bf9c23e0afdec81d9470@syzkaller.appspotmail.com INFO: trying to register non-static key. the code is fine but needs lockdep annotation. turning off the locking correctness validator. CPU: 1 PID: 317 Comm: kworker/u4:6 Not tainted 5.8.0-rc3-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: netns cleanup_net Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1f0/0x31e lib/dump_stack.c:118 register_lock_class+0xf06/0x1520 kernel/locking/lockdep.c:893 __lock_acquire+0x102/0x2c30 kernel/locking/lockdep.c:4259 lock_acquire+0x160/0x720 kernel/locking/lockdep.c:4959 __raw_write_lock_bh include/linux/rwlock_api_smp.h:203 [inline] _raw_write_lock_bh+0x31/0x40 kernel/locking/spinlock.c:319 addrconf_ifdown+0x5f8/0x1670 net/ipv6/addrconf.c:3734 addrconf_notify+0x3f9/0x3a60 net/ipv6/addrconf.c:3602 notifier_call_chain kernel/notifier.c:83 [inline] __raw_notifier_call_chain kernel/notifier.c:361 [inline] raw_notifier_call_chain+0xe7/0x170 kernel/notifier.c:368 call_netdevice_notifiers_info net/core/dev.c:2027 [inline] call_netdevice_notifiers_extack net/core/dev.c:2039 [inline] call_netdevice_notifiers net/core/dev.c:2053 [inline] rollback_registered_many+0xbe3/0x14a0 net/core/dev.c:8968 unregister_netdevice_many+0x46/0x260 net/core/dev.c:10113 ip6gre_exit_batch_net+0x435/0x460 net/ipv6/ip6_gre.c:1608 ops_exit_list net/core/net_namespace.c:189 [inline] cleanup_net+0x79c/0xba0 net/core/net_namespace.c:603 process_one_work+0x789/0xfc0 kernel/workqueue.c:2269 worker_thread+0xaa4/0x1460 kernel/workqueue.c:2415 kthread+0x37e/0x3a0 drivers/block/aoe/aoecmd.c:1234 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:293 --- This bug is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@googlegroups.com. syzbot will keep track of this bug report. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot.