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 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 22413C3F2D7 for ; Mon, 2 Mar 2020 20:23:15 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id F38A622B48 for ; Mon, 2 Mar 2020 20:23:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726720AbgCBUXO (ORCPT ); Mon, 2 Mar 2020 15:23:14 -0500 Received: from mail-il1-f200.google.com ([209.85.166.200]:43796 "EHLO mail-il1-f200.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725781AbgCBUXO (ORCPT ); Mon, 2 Mar 2020 15:23:14 -0500 Received: by mail-il1-f200.google.com with SMTP id o13so655942ilf.10 for ; Mon, 02 Mar 2020 12:23:14 -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=WgWux6Y22/63Va8zB2o6y1zbKUKSo3kEDrn0Gx4Q1oY=; b=sliO779oUSH+QNk3hqxPYvdIIgJIoIJc1I57hs08RQUZeE+xUMoN7XRP7gjWMcuWLQ zJls6CN/sYmMniszaOUM685kET9ezTHoexAbD54qL5SV7SeWnH0uheguXQgCZDHUfhuz rEpTikUaFtZwH6S/eqVzjeIDW23itgC5Y9fOPtn2/M0NS1Aws+Hf8hBpGC5MxSVrPVM3 8lB/TZ2nStIrhI1A22A7dtEof+sDVc2G5XBVi5EUPI8mSDaiB8dSjBg7x5eU1glFs8JO 4pVng9+jjqfpELN/E3Pokxp5iKqnJFFOnhT8arMK4t6FKKopQBn7s9QahpaDa4aNuUEu bXxg== X-Gm-Message-State: ANhLgQ3hej2vLNZTQ70Gjau+x+SwzTAMFZ8k46S4glXmyJ/5kJvOYVDr uDBtWk7cq2m1lUYQUkun5UwsHn2+08mlS6dGcrIRRQqdir5P X-Google-Smtp-Source: ADFU+vssJmeocxKl18N+nskM7AkXm5bZTLYslg7KmkLnvGLoTMNQlMzdSKxO6MlSw7c9hYqUwmzO0asq8b42varm7xVPLUAEQtht MIME-Version: 1.0 X-Received: by 2002:a02:7111:: with SMTP id n17mr772283jac.129.1583180593791; Mon, 02 Mar 2020 12:23:13 -0800 (PST) Date: Mon, 02 Mar 2020 12:23:13 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000e88a52059fe4f4ab@google.com> Subject: INFO: trying to register non-static key in hci_uart_send_frame (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" 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: f8788d86 Linux 5.6-rc3 git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=11b3d22de00000 kernel config: https://syzkaller.appspot.com/x/.config?x=9833e26bab355358 dashboard link: https://syzkaller.appspot.com/bug?extid=28071e627252004acc02 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+28071e627252004acc02@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: 1 PID: 3061 Comm: kworker/u5:0 Not tainted 5.6.0-rc3-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: hci1 hci_cmd_work 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:880 [inline] register_lock_class+0x179e/0x1850 kernel/locking/lockdep.c:1189 __lock_acquire+0xf4/0x4a00 kernel/locking/lockdep.c:3836 lock_acquire+0x190/0x410 kernel/locking/lockdep.c:4484 percpu_down_read include/linux/percpu-rwsem.h:40 [inline] hci_uart_send_frame+0x85/0x620 drivers/bluetooth/hci_ldisc.c:280 hci_send_frame+0x1bd/0x2d0 net/bluetooth/hci_core.c:3677 hci_cmd_work+0x162/0x2d0 net/bluetooth/hci_core.c:4598 process_one_work+0xa05/0x17a0 kernel/workqueue.c:2264 worker_thread+0x98/0xe40 kernel/workqueue.c:2410 kthread+0x361/0x430 kernel/kthread.c:255 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352 --- 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.