vmxnet3: validate queues configuration read on migration

vmxnet3: validate queues configuration read on migration

CVE-2013-4544

Signed-off-by: Dmitry Fleytman <dmitry@daynix.com>
Reported-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-id: 1396604722-11902-5-git-send-email-dmitry@daynix.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
(cherry picked from commit f12d048a523780dbda702027d4a91b62af1a08d7)
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>