From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Thu, 1 Mar 2012 07:02:08 +0000 (+0300)
Subject: rndis_wlan: integer overflows in rndis_wlan_do_link_up_work()
X-Git-Tag: v3.4-rc1~177^2~108^2~179
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=41eedf39dfb145fb8fa04cd5b799f7bdc7679696;p=pandora-kernel.git

rndis_wlan: integer overflows in rndis_wlan_do_link_up_work()

If "offset" is negative then we can get past this check:
	if (offset > CONTROL_BUFFER_SIZE)
Or if we pick a very high "req_ie_len" then we can get around the check:
	if (offset + req_ie_len > CONTROL_BUFFER_SIZE)

I made "resp_ie_len" and "req_ie_len" unsigned.  I don't know if it was
intentional that they were signed in the original.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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