[PATCH 4.19 18/56] netfilter: nft_tunnel: restrict it to netdev family

[Greg Kroah-Hartman]

From: Pablo Neira Ayuso <pablo@xxxxxxxxxxxxx>

[ Upstream commit 01e4092d53bc4fe122a6e4b6d664adbd57528ca3 ]

Only allow to use this expression from NFPROTO_NETDEV family.

Fixes: af308b94a2a4 ("netfilter: nf_tables: add tunnel support")
Signed-off-by: Pablo Neira Ayuso <pablo@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 net/netfilter/nft_tunnel.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/net/netfilter/nft_tunnel.c b/net/netfilter/nft_tunnel.c
index 8ae948fd9dcfc..3fc55c81f16ac 100644
--- a/net/netfilter/nft_tunnel.c
+++ b/net/netfilter/nft_tunnel.c
@@ -104,6 +104,7 @@ static const struct nft_expr_ops nft_tunnel_get_ops = {
 
 static struct nft_expr_type nft_tunnel_type __read_mostly = {
 	.name		= "tunnel",
+	.family		= NFPROTO_NETDEV,
 	.ops		= &nft_tunnel_get_ops,
 	.policy		= nft_tunnel_policy,
 	.maxattr	= NFTA_TUNNEL_MAX,
-- 
2.35.1