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:   Thu, 22 Sep 2016 16:40:50 +0200
From:   Oliver Neukum <oneukum@...e.com>
To:     wim@....tudelft.nl
Cc:     linux-kernel@...r.kernel.org, linux-usb@...r.kernel.org
Subject: Re: crash by cdc_acm driver in kernels 4.8-rc1/5

On Wed, 2016-09-21 at 18:41 +0200, Wim Osterholt wrote:
> On Wed, Sep 21, 2016 at 02:21:17PM +0200, Oliver Neukum wrote:
> > in sysfs.
> 
> Google pointed me to /sys/bus/usb/drivers/usb/*
> where I find all kinds of 'bConfigurationValue'.
> Now is the problem to find which one you could mean.
> 
> Under /sys/bus/usb/drivers/usb/7-1  I find
> manufacturer  which reads 'Conexant'  and
> bConfigurationValue  which reads '1'

OK. Strange. Please do

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.

	Regards
		Oliver