vxlan: using pskb_may_pull as early as possible

commit 91269e390d upstream.

pskb_may_pull should be used to check if skb->data has enough space,
skb->len can not ensure that.

Cc: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: Li RongQing <roy.qing.li@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>
This commit is contained in:
Li RongQing 2014-10-16 09:17:18 +08:00 • committed by Luis Henriques
commit 475ed54f65