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=-5.4 required=3.0 tests=FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS autolearn=unavailable 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 6EC2EC432C3 for ; Sun, 1 Dec 2019 01:15:12 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 4DBF12084D for ; Sun, 1 Dec 2019 01:15:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727280AbfLABPL (ORCPT ); Sat, 30 Nov 2019 20:15:11 -0500 Received: from mail-io1-f69.google.com ([209.85.166.69]:46849 "EHLO mail-io1-f69.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726188AbfLABPL (ORCPT ); Sat, 30 Nov 2019 20:15:11 -0500 Received: by mail-io1-f69.google.com with SMTP id b186so10558963iof.13 for ; Sat, 30 Nov 2019 17:15:09 -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=vdA+Pl+l1f6sCTYEO0wEzF5xZZ/NEuBoxJ/fDOritgw=; b=aVtgPntiA7KWouP36qA/yK16FR7sHy1frsmTK48JXV7gX7lz6bKr71IlH9O/j9UDql VsIyBKLGTejXkwoWvgIEZhCuEhx+bJgmSzBGj5OmB7KvCONrJ40kWwbtpOY32y+602H4 P/YuupeVHVKaQz+ZluueuQM5Yg6P8GrFs5gqP46Hn1dgzaTAWKnfHKSQX6mp1P5+eNOD gbS1wNAQ2A0nHNmjYk5IRC4Oxmm6T3Tpdi/0AqNbU9GCoVc+Q/D6kx98I2yOdXEQ52x8 z9IdAtfYGCfuPaHvLVhGYeJswUOOnFIV1duqjW4jbrbp8Dqsx9OMDhAE0Jsd4Ce51+/L XznQ== X-Gm-Message-State: APjAAAWaXXbM+CdBURJTZdQVmDgto9gdZu0spK2nKZfAF3bLFc4VGUY5 5kQS1+rX91ohQepk59thsmZV/CwWlqyep5AsgXe16TSPiKGN X-Google-Smtp-Source: APXvYqxAhPSnP4G/gEEYfgHPhOC4baFmRSGw7Q/tzVwChglVkhh0i0Dii8mLZun0KGQjJ1DD0rsLTzIQOONdpJ9N55bQy8SZ9Z9t MIME-Version: 1.0 X-Received: by 2002:a6b:ca41:: with SMTP id a62mr40117949iog.217.1575162909157; Sat, 30 Nov 2019 17:15:09 -0800 (PST) Date: Sat, 30 Nov 2019 17:15:09 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000a9f2eb05989a31cf@google.com> Subject: INFO: trying to register non-static key in hci_uart_tty_receive (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: be2eca94 Merge tag 'for-linus-5.5-1' of git://github.com/c.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=11bdb5eee00000 kernel config: https://syzkaller.appspot.com/x/.config?x=7a7e892e3a014d76 dashboard link: https://syzkaller.appspot.com/bug?extid=633817d309aae1e0cfce 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+633817d309aae1e0cfce@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: 26945 Comm: syz-executor.1 Not tainted 5.4.0-syzkaller #0 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+0x197/0x210 lib/dump_stack.c:118 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_tty_receive+0xcf/0x6e0 drivers/bluetooth/hci_ldisc.c:603 tiocsti drivers/tty/tty_io.c:2197 [inline] tty_ioctl+0x949/0x14f0 drivers/tty/tty_io.c:2573 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:509 [inline] do_vfs_ioctl+0xdb6/0x13e0 fs/ioctl.c:696 ksys_ioctl+0xab/0xd0 fs/ioctl.c:713 __do_sys_ioctl fs/ioctl.c:720 [inline] __se_sys_ioctl fs/ioctl.c:718 [inline] __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:718 do_syscall_64+0xfa/0x760 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45a649 Code: ad b6 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 b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fa162c03c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000045a649 RDX: 00000000200001c0 RSI: 0000000000005412 RDI: 0000000000000003 RBP: 000000000075c070 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fa162c046d4 R13: 00000000004c52f0 R14: 00000000004da410 R15: 00000000ffffffff --- 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.