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=-5.7 required=3.0 tests=FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_PASS 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 2837BC169C4 for ; Mon, 11 Feb 2019 17:07:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id EE0EB2075D for ; Mon, 11 Feb 2019 17:07:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727147AbfBKRHE (ORCPT ); Mon, 11 Feb 2019 12:07:04 -0500 Received: from mail-it1-f200.google.com ([209.85.166.200]:41162 "EHLO mail-it1-f200.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726199AbfBKRHE (ORCPT ); Mon, 11 Feb 2019 12:07:04 -0500 Received: by mail-it1-f200.google.com with SMTP id 71so21620719ita.6 for ; Mon, 11 Feb 2019 09:07:03 -0800 (PST) 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=/EhU+OIX75I087Lx3z1ppxFRbVl25KXxvfpamY5coQw=; b=OUgUmEAIjVmohSP6Fr4b3GZFHhc1Za2GST5eq8aCZ0eP4WfWncz74KDj+5F4yyaVvM T6VeYlBnkHEtsN4Qw940NlodCr25pEXWHtvFCHyOhD7XujiFgyvEr/GJxjmwQTY5EFR2 m08ieDwp8zIVqjLh36DjHucJ5izdy13cMzMDu32tHCQtLWho8ea5jKNKZumsXma+JVqT +ME/+pyKB0kbUD/ZVEiK4mkZrUKRs0R6Pz76a5YJxexM4FuWxopQUN5MjuF9U9soJYOv hjCQc1QlJU1qD8Sjuc1U1tnkKSdahrnAopB0v6FCY9dR1ghMd1c7M4NIQ4POyFmVvwqK HlFw== X-Gm-Message-State: AHQUAuYbawpYJE9Aqz6jVNuDx3oEL0oFS8BmY06GVOs56KQm3BgT9SHj P8kE6j5srlQDsTqpH0ReVgUx6yV/wxyQr+6ZlXGR0K4jngYR X-Google-Smtp-Source: AHgI3IbJFuatCgHrHMjlq1a5Kb8dKcLrywE5j6K+5ehV3kfrzbjZmSDmnHcx+o7cfkXZydOQ1RhDkG9j3SNVGAZ4g3lc44SDMmAv MIME-Version: 1.0 X-Received: by 2002:a24:a945:: with SMTP id x5mr340102iti.26.1549904823006; Mon, 11 Feb 2019 09:07:03 -0800 (PST) Date: Mon, 11 Feb 2019 09:07:03 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000006941590581a15637@google.com> Subject: INFO: trying to register non-static key in hci_uart_flush From: syzbot To: johan.hedberg@gmail.com, linux-bluetooth@vger.kernel.org, linux-kernel@vger.kernel.org, marcel@holtmann.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8"; format=flowed; delsp=yes Sender: linux-bluetooth-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-bluetooth@vger.kernel.org Hello, syzbot found the following crash on: HEAD commit: df3865f8f568 Merge branch 'i2c/for-current' of git://git.k.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=11274624c00000 kernel config: https://syzkaller.appspot.com/x/.config?x=8f00801d7b7c4fe6 dashboard link: https://syzkaller.appspot.com/bug?extid=e8cd9d8b4dfedf394390 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+e8cd9d8b4dfedf394390@syzkaller.appspotmail.com IPVS: ftp: loaded support on port[0] = 21 INFO: trying to register non-static key. the code is fine but needs lockdep annotation. kobject: 'sit0' (00000000268f641e): kobject_add_internal: parent: 'net', set: 'devices' turning off the locking correctness validator. CPU: 1 PID: 19154 Comm: syz-executor.5 Not tainted 5.0.0-rc5+ #66 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x172/0x1f0 lib/dump_stack.c:113 assign_lock_key kernel/locking/lockdep.c:731 [inline] register_lock_class+0x1bdc/0x1bf0 kernel/locking/lockdep.c:757 kobject: 'sit0' (00000000268f641e): kobject_uevent_env kobject: 'sit0' (00000000268f641e): fill_kobj_path: path = '/devices/virtual/net/sit0' __lock_acquire+0x11f/0x4700 kernel/locking/lockdep.c:3224 kobject: 'queues' (000000008049d3e4): kobject_add_internal: parent: 'sit0', set: '' lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:3841 kobject: 'queues' (000000008049d3e4): kobject_uevent_env percpu_down_read_preempt_disable include/linux/percpu-rwsem.h:36 [inline] percpu_down_read include/linux/percpu-rwsem.h:59 [inline] hci_uart_flush+0x110/0x3f0 drivers/bluetooth/hci_ldisc.c:248 kobject: 'queues' (000000008049d3e4): kobject_uevent_env: filter function caused the event to drop! hci_uart_close drivers/bluetooth/hci_ldisc.c:274 [inline] hci_uart_tty_close+0x8e/0x260 drivers/bluetooth/hci_ldisc.c:528 tty_ldisc_close.isra.0+0x100/0x180 drivers/tty/tty_ldisc.c:485 tty_ldisc_kill+0x9c/0x160 drivers/tty/tty_ldisc.c:633 tty_ldisc_release+0xc6/0x280 drivers/tty/tty_ldisc.c:805 tty_release_struct+0x1b/0x50 drivers/tty/tty_io.c:1610 tty_release+0xbce/0xe90 drivers/tty/tty_io.c:1783 __fput+0x2df/0x8d0 fs/file_table.c:278 kobject: 'rx-0' (00000000542b41ce): kobject_add_internal: parent: 'queues', set: 'queues' ____fput+0x16/0x20 fs/file_table.c:309 task_work_run+0x14a/0x1c0 kernel/task_work.c:113 get_signal+0x1969/0x1d60 kernel/signal.c:2388 kobject: 'rx-0' (00000000542b41ce): kobject_uevent_env kobject: 'rx-0' (00000000542b41ce): fill_kobj_path: path = '/devices/virtual/net/sit0/queues/rx-0' do_signal+0x87/0x1940 arch/x86/kernel/signal.c:816 kobject: 'tx-0' (0000000073d51d99): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'tx-0' (0000000073d51d99): kobject_uevent_env exit_to_usermode_loop+0x244/0x2c0 arch/x86/entry/common.c:162 prepare_exit_to_usermode arch/x86/entry/common.c:197 [inline] syscall_return_slowpath arch/x86/entry/common.c:268 [inline] do_syscall_64+0x52d/0x610 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457e39 kobject: 'tx-0' (0000000073d51d99): fill_kobj_path: path = '/devices/virtual/net/sit0/queues/tx-0' Code: ad b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 7b b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f6abc510c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 kobject: 'ip6tnl0' (00000000dd9201d6): kobject_add_internal: parent: 'net', set: 'devices' RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000457e39 RDX: 0000000000000009 RSI: 00000000400455c8 RDI: 0000000000000005 RBP: 000000000073c040 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f6abc5116d4 R13: 00000000004c06ce R14: 00000000004d2338 R15: 00000000ffffffff kobject: 'ip6tnl0' (00000000dd9201d6): kobject_uevent_env kobject: 'loop1' (0000000056803190): kobject_uevent_env kobject: 'loop1' (0000000056803190): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'ip6tnl0' (00000000dd9201d6): fill_kobj_path: path = '/devices/virtual/net/ip6tnl0' kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 19154 Comm: syz-executor.5 Not tainted 5.0.0-rc5+ #66 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__wake_up_common+0xdf/0x620 kernel/sched/wait.c:85 Code: 05 00 00 4c 8b 43 38 49 83 e8 18 49 8d 78 18 48 39 7d d0 0f 84 69 02 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 f9 48 c1 e9 03 <80> 3c 01 00 0f 85 12 05 00 00 49 8b 40 18 89 55 b0 31 db 49 bc 00 RSP: 0018:ffff88808d02f768 EFLAGS: 00010046 RAX: dffffc0000000000 RBX: ffff888052f6eb78 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 1ffffffff12b951f RDI: 0000000000000000 RBP: ffff88808d02f7c0 R08: ffffffffffffffe8 R09: ffff88808d02f818 R10: ffffed1011a05ee6 R11: 0000000000000003 R12: 0000000000000000 R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000 FS: 00007f6abc511700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fede4724000 CR3: 00000000587d0000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __wake_up_common_lock+0xe9/0x190 kernel/sched/wait.c:121 __wake_up+0xe/0x10 kernel/sched/wait.c:145 rcu_sync_enter+0x193/0x310 kernel/rcu/sync.c:132 percpu_down_write+0x61/0x440 kernel/locking/percpu-rwsem.c:143 hci_uart_tty_close+0x13a/0x260 drivers/bluetooth/hci_ldisc.c:531 tty_ldisc_close.isra.0+0x100/0x180 drivers/tty/tty_ldisc.c:485 tty_ldisc_kill+0x9c/0x160 drivers/tty/tty_ldisc.c:633 tty_ldisc_release+0xc6/0x280 drivers/tty/tty_ldisc.c:805 tty_release_struct+0x1b/0x50 drivers/tty/tty_io.c:1610 tty_release+0xbce/0xe90 drivers/tty/tty_io.c:1783 __fput+0x2df/0x8d0 fs/file_table.c:278 ____fput+0x16/0x20 fs/file_table.c:309 task_work_run+0x14a/0x1c0 kernel/task_work.c:113 get_signal+0x1969/0x1d60 kernel/signal.c:2388 do_signal+0x87/0x1940 arch/x86/kernel/signal.c:816 exit_to_usermode_loop+0x244/0x2c0 arch/x86/entry/common.c:162 prepare_exit_to_usermode arch/x86/entry/common.c:197 [inline] syscall_return_slowpath arch/x86/entry/common.c:268 [inline] do_syscall_64+0x52d/0x610 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457e39 Code: ad b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 7b b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f6abc510c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000457e39 RDX: 0000000000000009 RSI: 00000000400455c8 RDI: 0000000000000005 RBP: 000000000073c040 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f6abc5116d4 R13: 00000000004c06ce R14: 00000000004d2338 R15: 00000000ffffffff Modules linked in: ---[ end trace 3e8fad1d5cab0c4e ]--- RIP: 0010:__wake_up_common+0xdf/0x620 kernel/sched/wait.c:85 Code: 05 00 00 4c 8b 43 38 49 83 e8 18 49 8d 78 18 48 39 7d d0 0f 84 69 02 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 f9 48 c1 e9 03 <80> 3c 01 00 0f 85 12 05 00 00 49 8b 40 18 89 55 b0 31 db 49 bc 00 RSP: 0018:ffff88808d02f768 EFLAGS: 00010046 RAX: dffffc0000000000 RBX: ffff888052f6eb78 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 1ffffffff12b951f RDI: 0000000000000000 RBP: ffff88808d02f7c0 R08: ffffffffffffffe8 R09: ffff88808d02f818 R10: ffffed1011a05ee6 R11: 0000000000000003 R12: 0000000000000000 R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000 FS: 00007f6abc511700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fede4724000 CR3: 00000000587d0000 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#bug-status-tracking for how to communicate with syzbot.