From 6ea9c09b5c3b6248ae4fed3240e6aefbefa2169b Mon Sep 17 00:00:00 2001
From: Wenliang Fan <fanwlexca@gmail.com>
Date: Tue, 17 Dec 2013 11:25:28 +0800
Subject: [PATCH] drivers/net/hamradio: Integer overflow in hdlcdrv_ioctl()

[ Upstream commit e9db5c21d3646a6454fcd04938dd215ac3ab620a ]

The local variable 'bi' comes from userspace. If userspace passed a
large number to 'bi.data.calibrate', there would be an integer overflow
in the following line:
	s->hdlctx.calibrate = bi.data.calibrate * s->par.bitrate / 16;

Signed-off-by: Wenliang Fan <fanwlexca@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
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Reading git-format-patch failed