Commit d6aa7119 authored Mar 09, 2018 by William Tu Committed by David S. Miller Mar 09, 2018

ip6erspan: improve error handling for erspan version number.



When users fill in incorrect erspan version number through
the struct erspan_metadata uapi, current code skips pushing
the erspan header but continue pushing the gre header, which
is incorrect.  The patch fixes it by returning error.

Signed-off-by: William Tu <u9012063@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent 3b04caab

net/ipv6/ip6_gre.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -945,6 +945,8 @@ static netdev_tx_t ip6erspan_tunnel_xmit(struct sk_buff *skb,
		md->u.md2.dir,
		get_hwid(&md->u.md2),
		truncate, false);
		} else {
		goto tx_err;
		}
		} else {
		switch (skb->protocol) {