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]
Message-ID: <1479734372.2332.1.camel@suse.com>
Date:   Mon, 21 Nov 2016 14:19:32 +0100
From:   Oliver Neukum <oneukum@...e.com>
To:     wim@....tudelft.nl
Cc:     poma <pomidorabelisima@...il.com>, linux-kernel@...r.kernel.org,
        linux-usb@...r.kernel.org
Subject: Re: crash by cdc_acm driver in kernels 4.8-rc1/5

On Thu, 2016-11-17 at 17:11 +0100, Wim Osterholt wrote:

> Nov 17 15:07:51 localhost kernel: Check point  10
> Nov 17 15:07:51 localhost kernel: BUG: unable to handle kernel NULL pointer dereference at 00000249
> Nov 17 15:07:51 localhost kernel: IP: [<e186ece2>] acm_probe+0x559/0xe53 [cdc_acm]
> Nov 17 15:07:51 localhost kernel: *pde = 00000000 
> Nov 17 15:07:51 localhost kernel: Oops: 0000 [#1] SMP

I don't understand it, bit please test the attached patch
with dynamic debugging for cdc-acm and the kernel log level
at maximum. And please repost "lsusb -v" for your device.

	Regards
		Oliver


View attachment "0001-CDC-ACM-debugging-for-parsed-descriptors.patch" of type "text/x-patch" (1115 bytes)

Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ