From: Michael S. Tsirkin <mst@redhat.com>
Date: Tue, 16 Dec 2014 13:04:56 +0000 (+0200)
Subject: macvtap: fix uninitialized access on TUNSETIFF
X-Git-Tag: omap-for-v3.19/fixes-rc1~39^2~19^2~4
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=39ec7de7092ba9789f211d112a66bd19d4cb5d36;p=pandora-kernel.git

macvtap: fix uninitialized access on TUNSETIFF

flags field in ifreq is only 16 bit wide, but
we read it as a 32 bit value.
If userspace doesn't zero-initialize unused fields,
this will lead to failures.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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