X-Git-Url: https://git.proxmox.com/?a=blobdiff_plain;f=net%2Fipv4%2Ftcp_minisocks.c;h=0be6bfeab5536480596d8d227538e4211bfd6a9f;hb=90bbcc608369a1b46089b0f5aa22b8ea31ffa12e;hp=acb366dd61e6845b306ff19ed37287806a39a755;hpb=698f415cf5756e320623bdb015a600945743377c;p=mirror_ubuntu-bionic-kernel.git

diff --git a/net/ipv4/tcp_minisocks.c b/net/ipv4/tcp_minisocks.c
index acb366dd61e6..0be6bfeab553 100644
--- a/net/ipv4/tcp_minisocks.c
+++ b/net/ipv4/tcp_minisocks.c
@@ -545,7 +545,7 @@ struct sock *tcp_create_openreq_child(const struct sock *sk,
 		newtp->rack.mstamp.v64 = 0;
 		newtp->rack.advanced = 0;
 
-		TCP_INC_STATS_BH(sock_net(sk), TCP_MIB_PASSIVEOPENS);
+		__TCP_INC_STATS(sock_net(sk), TCP_MIB_PASSIVEOPENS);
 	}
 	return newsk;
 }
@@ -704,7 +704,10 @@ struct sock *tcp_check_req(struct sock *sk, struct sk_buff *skb,
 	if (paws_reject || !tcp_in_window(TCP_SKB_CB(skb)->seq, TCP_SKB_CB(skb)->end_seq,
 					  tcp_rsk(req)->rcv_nxt, tcp_rsk(req)->rcv_nxt + req->rsk_rcv_wnd)) {
 		/* Out of window: send ACK and drop. */
-		if (!(flg & TCP_FLAG_RST))
+		if (!(flg & TCP_FLAG_RST) &&
+		    !tcp_oow_rate_limited(sock_net(sk), skb,
+					  LINUX_MIB_TCPACKSKIPPEDSYNRECV,
+					  &tcp_rsk(req)->last_oow_ack_time))
 			req->rsk_ops->send_ack(sk, skb, req);
 		if (paws_reject)
 			NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_PAWSESTABREJECTED);
@@ -726,7 +729,7 @@ struct sock *tcp_check_req(struct sock *sk, struct sk_buff *skb,
 	 *	   "fourth, check the SYN bit"
 	 */
 	if (flg & (TCP_FLAG_RST|TCP_FLAG_SYN)) {
-		TCP_INC_STATS_BH(sock_net(sk), TCP_MIB_ATTEMPTFAILS);
+		__TCP_INC_STATS(sock_net(sk), TCP_MIB_ATTEMPTFAILS);
 		goto embryonic_reset;
 	}