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=-0.4 required=3.0 tests=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 93267C2BB86 for ; Sat, 11 Apr 2020 05:40:18 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 7541D20757 for ; Sat, 11 Apr 2020 05:40:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725899AbgDKFkO (ORCPT ); Sat, 11 Apr 2020 01:40:14 -0400 Received: from mail-io1-f71.google.com ([209.85.166.71]:41202 "EHLO mail-io1-f71.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725855AbgDKFkO (ORCPT ); Sat, 11 Apr 2020 01:40:14 -0400 Received: by mail-io1-f71.google.com with SMTP id p20so4230208iob.8 for ; Fri, 10 Apr 2020 22:40:14 -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=8JDQ5U8UVLv002wFo+eytZYgTb48Ga4EUOnZfo48eJ0=; b=i6256R0sakV70XBmXrSRB5VQ1qgyPZ9VyyAFeRRjPf4122i4ABJqw1wEm1kPxh3Ers 7BTjVXtsG+rt+f0YICWjf4CjP9WMP6Q82DmhrSxGsaUIdkhudRObW7isel+QvXDz/XzJ 8Q4Wfxc7gfcI+oKpEjcxjKm9Gl+yyUVdiyQjzdRVI631yZ5Nf/rRN0SL4d5ESY9vTkyA gyg77z/jxMwojqw1PVjwKyX6+oyWAXztH6Pw96hZsXFn59mxpcero2k/CCjsbpcq3Mgg ShFB9HakCyxc+C6E8kg9V4h6YJ953v2lBn1wvjfG/JeE4ZMD77nGUm+RnrrfbymmBxK2 OVFg== X-Gm-Message-State: AGi0PuberkSkwYMN2u0JNpgoxR2kHE5NRb6d6ycKh95iNVlLmBNIjW+m 4WAKhtcKzPDtbmj66PAQzbtEeHAo9E83+9Wg9myYX6MpJ0G0 X-Google-Smtp-Source: APiQypJcxw8RNRO8vv7uAUFgyV0CIt7YmvDKpA2ROqAQGhaCG5xd//xXmcDbnpQ7pHv7zL9kHxTDVKU2mWvOf36ta/5F3p9Ce2pN MIME-Version: 1.0 X-Received: by 2002:a92:d08e:: with SMTP id h14mr306982ilh.208.1586583614152; Fri, 10 Apr 2020 22:40:14 -0700 (PDT) Date: Fri, 10 Apr 2020 22:40:14 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000ba65ba05a2fd48d9@google.com> Subject: kernel BUG at net/core/dev.c:LINE! (3) From: syzbot To: andy@greyhouse.net, davem@davemloft.net, j.vosburgh@gmail.com, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, syzkaller-bugs@googlegroups.com, vfalico@gmail.com 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: aa81700c macsec: fix NULL dereference in macsec_upd_offloa.. git tree: net console output: https://syzkaller.appspot.com/x/log.txt?x=14f97c9fe00000 kernel config: https://syzkaller.appspot.com/x/.config?x=8c1e98458335a7d1 dashboard link: https://syzkaller.appspot.com/bug?extid=af23e7f3e0a7e10c8b67 compiler: gcc (GCC) 9.0.0 20181231 (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+af23e7f3e0a7e10c8b67@syzkaller.appspotmail.com bond11 (unregistering): Released all slaves bond10 (unregistering): Released all slaves bond9 (unregistering): Released all slaves bond8 (unregistering): (slave xfrm1): Releasing backup interface bond8 (unregistering): Destroying bond ------------[ cut here ]------------ kernel BUG at net/core/dev.c:8797! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 208 Comm: kworker/u4:6 Not tainted 5.6.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: netns cleanup_net RIP: 0010:rollback_registered_many+0x2b3/0xe70 net/core/dev.c:8797 Code: 48 89 e8 48 c1 e8 03 42 80 3c 30 00 0f 85 19 0b 00 00 48 b8 22 01 00 00 00 00 ad de 48 89 43 70 e9 bc fe ff ff e8 cd 57 62 fb <0f> 0b 4c 8d 7b 68 48 8d 6b 70 eb a5 e8 bc 57 62 fb 49 8b 04 24 48 RSP: 0018:ffffc90000e27718 EFLAGS: 00010293 RAX: ffff8880a933a340 RBX: ffff888088188000 RCX: ffffffff86109040 RDX: 0000000000000000 RSI: ffffffff86109193 RDI: 0000000000000001 RBP: ffff888088188068 R08: ffff8880a933a340 R09: fffffbfff14accf1 R10: fffffbfff14accf0 R11: ffffffff8a566787 R12: ffffc90000e27860 R13: ffffc90000e277f8 R14: dffffc0000000000 R15: 0000000000000002 FS: 0000000000000000(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fbfa2811000 CR3: 0000000093d8c000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: rollback_registered+0xf2/0x1c0 net/core/dev.c:8871 unregister_netdevice_queue net/core/dev.c:9967 [inline] unregister_netdevice_queue+0x1d7/0x2b0 net/core/dev.c:9960 unregister_netdevice include/linux/netdevice.h:2725 [inline] bond_release_and_destroy drivers/net/bonding/bond_main.c:2091 [inline] bond_slave_netdev_event drivers/net/bonding/bond_main.c:3164 [inline] bond_netdev_event.cold+0xd1/0x128 drivers/net/bonding/bond_main.c:3277 notifier_call_chain+0xc0/0x230 kernel/notifier.c:83 call_netdevice_notifiers_info net/core/dev.c:1948 [inline] call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:1933 call_netdevice_notifiers_extack net/core/dev.c:1960 [inline] call_netdevice_notifiers net/core/dev.c:1974 [inline] rollback_registered_many+0x75c/0xe70 net/core/dev.c:8826 unregister_netdevice_many.part.0+0x16/0x1e0 net/core/dev.c:9986 unregister_netdevice_many net/core/dev.c:9985 [inline] default_device_exit_batch+0x311/0x3d0 net/core/dev.c:10469 ops_exit_list.isra.0+0x103/0x150 net/core/net_namespace.c:189 cleanup_net+0x511/0xa50 net/core/net_namespace.c:603 process_one_work+0x965/0x16a0 kernel/workqueue.c:2266 worker_thread+0x96/0xe20 kernel/workqueue.c:2412 kthread+0x388/0x470 kernel/kthread.c:268 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352 Modules linked in: ---[ end trace 8b2af7c1d8b87378 ]--- RIP: 0010:rollback_registered_many+0x2b3/0xe70 net/core/dev.c:8797 Code: 48 89 e8 48 c1 e8 03 42 80 3c 30 00 0f 85 19 0b 00 00 48 b8 22 01 00 00 00 00 ad de 48 89 43 70 e9 bc fe ff ff e8 cd 57 62 fb <0f> 0b 4c 8d 7b 68 48 8d 6b 70 eb a5 e8 bc 57 62 fb 49 8b 04 24 48 RSP: 0018:ffffc90000e27718 EFLAGS: 00010293 RAX: ffff8880a933a340 RBX: ffff888088188000 RCX: ffffffff86109040 RDX: 0000000000000000 RSI: ffffffff86109193 RDI: 0000000000000001 RBP: ffff888088188068 R08: ffff8880a933a340 R09: fffffbfff14accf1 R10: fffffbfff14accf0 R11: ffffffff8a566787 R12: ffffc90000e27860 R13: ffffc90000e277f8 R14: dffffc0000000000 R15: 0000000000000002 FS: 0000000000000000(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fbfa2816028 CR3: 0000000093d8c000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 --- 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.