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 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 397E3C433F5 for ; Fri, 22 Oct 2021 23:54:38 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 16B5661078 for ; Fri, 22 Oct 2021 23:54:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231818AbhJVX4y (ORCPT ); Fri, 22 Oct 2021 19:56:54 -0400 Received: from mail-il1-f200.google.com ([209.85.166.200]:56128 "EHLO mail-il1-f200.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231293AbhJVX4m (ORCPT ); Fri, 22 Oct 2021 19:56:42 -0400 Received: by mail-il1-f200.google.com with SMTP id o8-20020a056e02068800b0025999dab84fso3421304ils.22 for ; Fri, 22 Oct 2021 16:54:24 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:date:message-id:subject:from:to; bh=vdkW0hhANDDJA+JCyK9vJjex91cQAkOvKz7Fs8k2X84=; b=IbvyBKFz1UCAHYs/uP4rA1GPWSai81HUKZPVY9l15pKEXYzW2x6TEfdmU5g9MG1kYP tGKfUoBK8lKhVM9BSu0F0sFQFHqkjOc+AJx7EutfZJYPFgV2bKfOhZ8QL0gkxQS4Vz19 9NKC86nOry0dvJcL7LyHgeqPwBS7NN9rfSMkfE5HLRb1XvKkFZTbgrmlFjU4QN9OJOLx iqn3L4sGODPMza5kMUIvIR+aSNPLprFnw5E/DulQU2xtg57BZa3oVqdvRfesBohkNKRT akqDE2cHR1lbuzShCuXEfELeAC6gNyjmX3/LGD9mg5NhX5GSLuNMrn22j6G5i5Zbqc+k P+2g== X-Gm-Message-State: AOAM531Uo2I300lciLaBW6Nig4oCdfWq9eh6uf3rWiJMiDLi6yKQ5NKh nS0XFg07zvNskbVkFdrVGVnXcKjsJuADCt+Sc1W3nJS9i9No X-Google-Smtp-Source: ABdhPJw+MzeliCQ+7b7Hsq4zAj3tgiuHUSJLddUiPwYX/7FCDi4MDxi4Nr4LmLh6x1mT37uSjpyTlkNwaCoUgyYTB02VcvskXxmQ MIME-Version: 1.0 X-Received: by 2002:a05:6e02:198e:: with SMTP id g14mr1776541ilf.280.1634946864523; Fri, 22 Oct 2021 16:54:24 -0700 (PDT) Date: Fri, 22 Oct 2021 16:54:24 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000162f5005cef9bbf7@google.com> Subject: [syzbot] INFO: trying to register non-static key in hci_uart_tty_receive (3) From: syzbot To: johan.hedberg@gmail.com, linux-bluetooth@vger.kernel.org, linux-kernel@vger.kernel.org, luiz.dentz@gmail.com, marcel@holtmann.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, syzbot found the following issue on: HEAD commit: 519d81956ee2 Linux 5.15-rc6 git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=16787178b00000 kernel config: https://syzkaller.appspot.com/x/.config?x=1f7f46d98a0da80e dashboard link: https://syzkaller.appspot.com/bug?extid=f2725165900304ec97b6 compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 Unfortunately, I don't have any reproducer for this issue yet. IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+f2725165900304ec97b6@syzkaller.appspotmail.com INFO: trying to register non-static key. The code is fine but needs lockdep annotation, or maybe you didn't initialize this object before use? turning off the locking correctness validator. CPU: 1 PID: 24628 Comm: syz-executor.5 Not tainted 5.15.0-rc6-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106 assign_lock_key kernel/locking/lockdep.c:939 [inline] register_lock_class+0xf79/0x10c0 kernel/locking/lockdep.c:1251 __lock_acquire+0x105/0x54a0 kernel/locking/lockdep.c:4894 lock_acquire kernel/locking/lockdep.c:5625 [inline] lock_acquire+0x1ab/0x510 kernel/locking/lockdep.c:5590 percpu_down_read include/linux/percpu-rwsem.h:51 [inline] hci_uart_tty_receive+0xc4/0x710 drivers/bluetooth/hci_ldisc.c:603 tiocsti drivers/tty/tty_io.c:2310 [inline] tty_ioctl+0x909/0x1670 drivers/tty/tty_io.c:2719 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:874 [inline] __se_sys_ioctl fs/ioctl.c:860 [inline] __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:860 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7ff49c1bfa39 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ff4996b1188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007ff49c2c3260 RCX: 00007ff49c1bfa39 RDX: 0000000020000000 RSI: 0000000000005412 RDI: 0000000000000005 RBP: 00007ff49c219c5f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fffa845426f R14: 00007ff4996b1300 R15: 0000000000022000 --- This report 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 issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot.