netdev - tty_register_device NULL pointer dereference in 2.6.31-rc4

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Message-ID: <4A6AD807.6060706@hartkopp.net>
Date:	Sat, 25 Jul 2009 12:01:43 +0200
From:	Oliver Hartkopp <oliver@...tkopp.net>
To:	Alan Cox <alan@...rguk.ukuu.org.uk>,
	Marcel Holtmann <marcel@...tmann.org>
CC:	Linux Netdev List <netdev@...r.kernel.org>,
	linux-bluetooth@...r.kernel.org
Subject: tty_register_device NULL pointer dereference in 2.6.31-rc4

Hello Alan and Marcel,

this morning i got a NULL pointer dereference in tty_register_device() that
looked similar to the one, i posted here on 03-jun-2009:

http://marc.info/?l=linux-bluetooth&m=124404919324542&w=2

As the boot sequence stopped after this point, i was only able to take a
picture of it - see attached jpg.

I was able to shut down the system gracefully by pressing the power button.

The problem emerges really seldom.

Any idea?

Regards,
Oliver




Download attachment "tty_register_device_2-6-31-rc4.jpg" of type "image/jpeg" (134502 bytes)