linux-kernel - Re: 2.6.20-rc4: null pointer deref in khubd

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Date:	Wed, 10 Jan 2007 16:49:35 +0100 (MET)
From:	Oliver Neukum <oneukum@...e.de>
To:	Pavel Machek <pavel@....cz>, linux-usb-devel@...ts.sourceforge.net
Cc:	kernel list <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...l.org>, Greg KH <greg@...ah.com>
Subject: Re: 2.6.20-rc4: null pointer deref in khubd

Am Mittwoch, 10. Januar 2007 11:49 schrieb Pavel Machek:
> usb 2-1: new full speed USB device using uhci_hcd and address 68
> usb 2-1: USB disconnect, address 68
> usb 2-1: unable to read config index 0 descriptor/start
> usb 2-1: chopping to 0 config(s)

Does anybody know a legitimate reasons a device should have
0 configurations? Independent of the reason of this bug, should we disallow
such devices and error out?

	Regards
		Oliver
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