From: Gertjan van Wingerde <gwingerde@kpnplanet.nl>
Date: Fri, 6 Jun 2008 20:54:28 +0000 (+0200)
Subject: rt2x00: Fix double usage of skb->cb in USB RX path.
X-Git-Tag: v2.6.27-rc1~969^2~324^2~67
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a26cbc650846b74dd7f46dd877fd30c472df14a1;p=pandora-kernel.git

rt2x00: Fix double usage of skb->cb in USB RX path.

It is not safe to use the skb->cb area for both the rxd and
skb_frame_desc data at the same time, while they occupy an overlapping
piece of memory. This can lead to hard to trace crashes as pointers
within skb_frame_desc are pointing into nowhere, or the rxd data is
overwritten with non-sense.

Fix it by copying the rxd to a small buffer on the stack.

Signed-off-by: Gertjan van Wingerde <gwingerde@kpnplanet.nl>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---

Reading git-diff-tree failed