From: David S. Miller <davem@davemloft.net>
Date: Tue, 7 Feb 2017 03:41:27 +0000 (-0500)
Subject: Merge branch 'read-vnet_hdr_sz-once'
X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=432d4f8ab03527958294ad5e539acaebfc4625e3;p=openwrt%2Fstaging%2Fblogic.git

Merge branch 'read-vnet_hdr_sz-once'

Willem de Bruijn says:

====================
read vnet_hdr_sz once

Tuntap devices allow concurrent use and update of field vnet_hdr_sz.
Read the field once to avoid TOCTOU.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
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432d4f8ab03527958294ad5e539acaebfc4625e3