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 7E341C3A5A2 for ; Tue, 3 Sep 2019 19:04:14 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 548D221897 for ; Tue, 3 Sep 2019 19:04:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726411AbfICTEN (ORCPT ); Tue, 3 Sep 2019 15:04:13 -0400 Received: from mail-io1-f70.google.com ([209.85.166.70]:37001 "EHLO mail-io1-f70.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725882AbfICTEJ (ORCPT ); Tue, 3 Sep 2019 15:04:09 -0400 Received: by mail-io1-f70.google.com with SMTP id f24so15548768ion.4 for ; Tue, 03 Sep 2019 12:04:08 -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=ggJvVtMwVhNhQHN6gDzzosmGm7u52Y8RU1Pq44M1vzo=; b=ZHyZeHEPclOJxP+2Do1+1MEcKD1IyyjhW8Nf2BjEvVbHpv+4+22LF8ZeeaxvhzrmGE BQ48WIWNRav4k4SF1m6Q+2Rv5dY97zrAvjpl7pzpUCQlGcqLEktSZXBH5mqhF+7h1JTm ztJKrHCgvib/nYC3015Km/SdYicuswlgRRVMiWIkJYMIbZ/9XxJrELHCg1hgWy6GwsZB 3vll2nMjIygd2a27e0XC2Tm72xl3f7ZmYSMyszZpLAVQlXANnOAL+UJ1IizOd77M/Tha LPB/D2CPZnsYukOSWl6DdRQ2ADsR7CugbwvF7cF7/eO7QCzOxwj1LmFR8vGabqi0xtE4 TDoQ== X-Gm-Message-State: APjAAAUehUzSPSgey17T8EWjObErIE0HKPRzcbp3l+vK8bIVjDaI4x2/ XtpwId4hu7dSuQII19i8IT+OpEbJ+K/iUG9K0NJN2dRB+b+H X-Google-Smtp-Source: APXvYqyAr4lM/K4Q36xxiGHskjtOJEqbMJ9j3gJ54NOxeX+uXRdjwaRPWkvo+iiAXHLNGTu8f+KGdo106jiu2gxQjugcnR1HgHuJ MIME-Version: 1.0 X-Received: by 2002:a5e:d80e:: with SMTP id l14mr1179553iok.217.1567537447635; Tue, 03 Sep 2019 12:04:07 -0700 (PDT) Date: Tue, 03 Sep 2019 12:04:07 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000bd19720591aac025@google.com> Subject: INFO: trying to register non-static key in hci_uart_flush (2) 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: 6d028043 Add linux-next specific files for 20190830 git tree: linux-next console output: https://syzkaller.appspot.com/x/log.txt?x=141d6cae600000 kernel config: https://syzkaller.appspot.com/x/.config?x=82a6bec43ab0cb69 dashboard link: https://syzkaller.appspot.com/bug?extid=576dfca25381fb6fbc5f 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+576dfca25381fb6fbc5f@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: 0 PID: 31436 Comm: syz-executor.2 Not tainted 5.3.0-rc6-next-20190830 #75 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:881 [inline] register_lock_class+0x179e/0x1850 kernel/locking/lockdep.c:1190 __lock_acquire+0xf4/0x4a00 kernel/locking/lockdep.c:3837 lock_acquire+0x190/0x410 kernel/locking/lockdep.c:4487 percpu_down_read include/linux/percpu-rwsem.h:40 [inline] hci_uart_flush+0x110/0x510 drivers/bluetooth/hci_ldisc.c:241 hci_uart_close drivers/bluetooth/hci_ldisc.c:267 [inline] hci_uart_tty_close+0x8e/0x280 drivers/bluetooth/hci_ldisc.c:534 tty_ldisc_close.isra.0+0x119/0x1a0 drivers/tty/tty_ldisc.c:494 tty_ldisc_kill+0x9c/0x160 drivers/tty/tty_ldisc.c:642 tty_ldisc_release+0xe9/0x2b0 drivers/tty/tty_ldisc.c:814 tty_release_struct+0x1b/0x50 drivers/tty/tty_io.c:1612 tty_release+0xbcb/0xe90 drivers/tty/tty_io.c:1785 __fput+0x2ff/0x890 fs/file_table.c:280 ____fput+0x16/0x20 fs/file_table.c:313 task_work_run+0x145/0x1c0 kernel/task_work.c:113 get_signal+0x2078/0x2500 kernel/signal.c:2528 do_signal+0x87/0x1700 arch/x86/kernel/signal.c:815 exit_to_usermode_loop+0x286/0x380 arch/x86/entry/common.c:159 prepare_exit_to_usermode arch/x86/entry/common.c:194 [inline] syscall_return_slowpath arch/x86/entry/common.c:274 [inline] do_syscall_64+0x65f/0x760 arch/x86/entry/common.c:300 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x459879 Code: fd b7 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 cb b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f5b36328c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000459879 RDX: 0000000000000002 RSI: 00000000400455c8 RDI: 0000000000000003 RBP: 000000000075bfc8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f5b363296d4 R13: 00000000004c2586 R14: 00000000004d5ae8 R15: 00000000ffffffff 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: 31436 Comm: syz-executor.2 Not tainted 5.3.0-rc6-next-20190830 #75 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__wake_up_common+0xdf/0x610 kernel/sched/wait.c:86 Code: 05 00 00 4c 8b 43 38 49 83 e8 18 49 8d 78 18 48 39 7d d0 0f 84 64 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 0d 05 00 00 49 8b 40 18 89 55 b0 31 db 49 bc 00 RSP: 0018:ffff8880979bf818 EFLAGS: 00010046 RAX: dffffc0000000000 RBX: ffff8880a7ff48b8 RCX: 0000000000000000 RDX: 0000000000000001 RSI: 1ffffffff138b536 RDI: 0000000000000000 RBP: ffff8880979bf870 R08: ffffffffffffffe8 R09: 0000000000000000 R10: ffffed1012f37efe R11: 0000000000000003 R12: ffff8880a7ff4900 R13: ffff8880a7ff48b0 R14: 0000000000000000 R15: ffff8880a7ff48b8 FS: 00007f5b36329700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffff600400 CR3: 00000000a81a2000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __wake_up_locked+0x11/0x20 kernel/sched/wait.c:151 rcu_sync_func+0x16f/0x200 kernel/rcu/sync.c:87 rcu_sync_enter+0x158/0x310 kernel/rcu/sync.c:150 percpu_down_write+0x61/0x440 kernel/locking/percpu-rwsem.c:146 hci_uart_tty_close+0x154/0x280 drivers/bluetooth/hci_ldisc.c:537 tty_ldisc_close.isra.0+0x119/0x1a0 drivers/tty/tty_ldisc.c:494 tty_ldisc_kill+0x9c/0x160 drivers/tty/tty_ldisc.c:642 tty_ldisc_release+0xe9/0x2b0 drivers/tty/tty_ldisc.c:814 tty_release_struct+0x1b/0x50 drivers/tty/tty_io.c:1612 tty_release+0xbcb/0xe90 drivers/tty/tty_io.c:1785 __fput+0x2ff/0x890 fs/file_table.c:280 ____fput+0x16/0x20 fs/file_table.c:313 task_work_run+0x145/0x1c0 kernel/task_work.c:113 get_signal+0x2078/0x2500 kernel/signal.c:2528 do_signal+0x87/0x1700 arch/x86/kernel/signal.c:815 exit_to_usermode_loop+0x286/0x380 arch/x86/entry/common.c:159 prepare_exit_to_usermode arch/x86/entry/common.c:194 [inline] syscall_return_slowpath arch/x86/entry/common.c:274 [inline] do_syscall_64+0x65f/0x760 arch/x86/entry/common.c:300 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x459879 Code: fd b7 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 cb b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f5b36328c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000459879 RDX: 0000000000000002 RSI: 00000000400455c8 RDI: 0000000000000003 RBP: 000000000075bfc8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f5b363296d4 R13: 00000000004c2586 R14: 00000000004d5ae8 R15: 00000000ffffffff Modules linked in: ---[ end trace d1da9c36c5e69966 ]--- RIP: 0010:__wake_up_common+0xdf/0x610 kernel/sched/wait.c:86 Code: 05 00 00 4c 8b 43 38 49 83 e8 18 49 8d 78 18 48 39 7d d0 0f 84 64 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 0d 05 00 00 49 8b 40 18 89 55 b0 31 db 49 bc 00 RSP: 0018:ffff8880979bf818 EFLAGS: 00010046 RAX: dffffc0000000000 RBX: ffff8880a7ff48b8 RCX: 0000000000000000 RDX: 0000000000000001 RSI: 1ffffffff138b536 RDI: 0000000000000000 RBP: ffff8880979bf870 R08: ffffffffffffffe8 R09: 0000000000000000 R10: ffffed1012f37efe R11: 0000000000000003 R12: ffff8880a7ff4900 R13: ffff8880a7ff48b0 R14: 0000000000000000 R15: ffff8880a7ff48b8 FS: 00007f5b36329700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffff600400 CR3: 00000000a81a2000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 --- This bug is generated by a bot. 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