From 6180c780e64ceb8dd23345b586dfa70c0a1536ee Mon Sep 17 00:00:00 2001 From: Xin Long Date: Fri, 10 Dec 2021 13:50:40 -0500 Subject: tipc: discard MSG_CRYPTO msgs when key_exchange_enabled is not set When key_exchange is disabled, there is no reason to accept MSG_CRYPTO msgs if it doesn't send MSG_CRYPTO msgs. Signed-off-by: Xin Long Acked-by: Jon Maloy Signed-off-by: David S. Miller --- net/tipc/link.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'net/tipc') diff --git a/net/tipc/link.c b/net/tipc/link.c index 09ae8448f394..8d9e09f48f4c 100644 --- a/net/tipc/link.c +++ b/net/tipc/link.c @@ -1298,7 +1298,8 @@ static bool tipc_data_input(struct tipc_link *l, struct sk_buff *skb, return false; #ifdef CONFIG_TIPC_CRYPTO case MSG_CRYPTO: - if (TIPC_SKB_CB(skb)->decrypted) { + if (sysctl_tipc_key_exchange_enabled && + TIPC_SKB_CB(skb)->decrypted) { tipc_crypto_msg_rcv(l->net, skb); return true; } -- cgit v1.2.3-59-g8ed1b