netns xfrm: state lookup in netns

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/key/af_key.c b/net/key/af_key.c
index e5d595a..449a5d03 100644
--- a/net/key/af_key.c
+++ b/net/key/af_key.c
@@ -683,7 +683,7 @@
 	if (!xaddr)
 		return NULL;
 
-	return xfrm_state_lookup(xaddr, sa->sadb_sa_spi, proto, family);
+	return xfrm_state_lookup(&init_net, xaddr, sa->sadb_sa_spi, proto, family);
 }
 
 #define PFKEY_ALIGN8(a) (1 + (((a) - 1) | (8 - 1)))