tree d1af9ffefd6137a2972b203296ea3961282f5ae8
parent fe439dd09d3e4da6a44d35df7371b9c6a2661b99
author Philip Love <love_phil@emc.com> 1219829630 -0700
committer David S. Miller <davem@davemloft.net> 1219829630 -0700

tcp: fix tcp header size miscalculation when window scale is unused

The size of the TCP header is miscalculated when the window scale ends
up being 0. Additionally, this can be induced by sending a SYN to a
passive open port with a window scale option with value 0.

Signed-off-by: Philip Love <love_phil@emc.com>
Signed-off-by: Adam Langley <agl@imperialviolet.org>
Signed-off-by: David S. Miller <davem@davemloft.net>