[TCP]: In TCP_LISTEN state, ignore SYNs with RST set.

6ddc851b · Florian Weimer · Hideaki Yoshifuji · 68f80838 · 6ddc851b
Commit 6ddc851b authored Oct 26, 2002 by Florian Weimer Committed by Hideaki Yoshifuji Oct 26, 2002
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net/ipv4/tcp_input.c net/ipv4/tcp_input.c +3 -0

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--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -3847,6 +3847,9 @@ int tcp_rcv_state_process(struct sock *sk, struct sk_buff *skb,
 		if(th->ack)
 			return 1;

+		if(th->rst)
+			goto discard;
+
 		if(th->syn) {
 			if(tp->af_specific->conn_request(sk, skb) < 0)
 				return 1;