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H A Dtun.cdiff e01bf1c83332c4653ffd30eed20a94a9c83d82b2 Sat Apr 12 20:49:30 CDT 2008 Rusty Russell <rusty@rustcorp.com.au> net: check for underlength tap writes

If the user gives a packet under 14 bytes, we'll end up reading off the end
of the skb (not oopsing, just reading off the end).

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Acked-by: Max Krasnyanskiy <maxk@qualcomm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>