linux-kernel - How to reproduce the BUG general protection fault in hci_uart_tty

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Date:   Wed, 28 Jun 2023 23:01:40 +0800
From:   joeyli <jlee@...e.com>
To:     Yu Hao <yhao016@....edu>
Cc:     linux-bluetooth@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: How to reproduce the BUG general protection fault in
 hci_uart_tty_ioctl?

Hi Yu Hao,

I am looking at your "BUG: general protection fault in hci_uart_tty_ioctl":

https://lore.kernel.org/all/CA+UBctC3p49aTgzbVgkSZ2+TQcqq4fPDO7yZitFT5uBPDeCO2g@mail.gmail.com/

I am trying the C reproducer in your URL, but it is not success yet:
https://gist.github.com/ZHYfeng/a3e3ff2bdfea5ed5de5475f0b54d55cb

I am using v6.2 mainline kernel to run the C reproducer.

Could you please provide suggestions for how to reproduce this issue?
And what is your qemu environment for reproducing issue?

Thanks a lot!
Joey Lee