linux-kernel - Re: crash by cdc_acm driver in kernels 4.8-rc1/5

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Fri, 23 Sep 2016 12:04:31 +0200
From:   Wim Osterholt <wim@....tudelft.nl>
To:     Oliver Neukum <oneukum@...e.com>
Cc:     linux-kernel@...r.kernel.org, linux-usb@...r.kernel.org,
        Wim Osterholt <wim@....tudelft.nl>
Subject: Re: crash by cdc_acm driver in kernels 4.8-rc1/5

On Thu, Sep 22, 2016 at 04:40:50PM +0200, Oliver Neukum wrote:
> 
> dmesg -c
> echo 9 > /proc/sysrq-trigger
> modprobe cdc_acm
> echo "module cdc_acm +mpf" > /sys/kernel/debug/dynamic_debug/control
> 
> [plug your device in]
> 
> and provide the full output of dmesg after that.

That is not possible under a 4.8 kernel.

'Fixing recursive fault but reboot is needed!' and frozen it is.


Regards, Wim.