From 6653df95d762193fe4abdf440f7455648a29c083 Mon Sep 17 00:00:00 2001
From: dongnanyang <3192818988@qq.com>
Date: Sat, 20 Jun 2026 16:45:47 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E5=A4=8DSYNPROXY=E6=A8=A1=E5=BC=8F?=
 =?UTF-8?q?=E4=B8=8B=EF=BC=8C=E6=97=A0=E6=B3=95=E5=9B=9E=E5=A4=8Dreal=20se?=
 =?UTF-8?q?rvice=20ack=E6=8A=A5=E6=96=87?=
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---
 core/lb_proto_tcp.c | 3 +--
 core/lb_synproxy.c  | 2 ++
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/core/lb_proto_tcp.c b/core/lb_proto_tcp.c
index dc7dc7e..78e3835 100644
--- a/core/lb_proto_tcp.c
+++ b/core/lb_proto_tcp.c
@@ -536,8 +536,7 @@ tcp_fullnat_recv_client(struct rte_mbuf *m, struct ipv4_hdr *iph,
         (!SYN(th) && ACK(th) && !RST(th) && !FIN(th))) {
         TCP_PRINT(IPv4_TCP_FMT " [SYNPROXY SYN_SENT DROP]\n",
                   IPv4_TCP_ARG(iph, th));
-        rte_pktmbuf_free(conn->proxy.ack_mbuf);
-        conn->proxy.ack_mbuf = m;
+        rte_pktmbuf_free(m);
         return 0;
     }
 
diff --git a/core/lb_synproxy.c b/core/lb_synproxy.c
index ff37529..5c0230a 100644
--- a/core/lb_synproxy.c
+++ b/core/lb_synproxy.c
@@ -418,6 +418,8 @@ synproxy_recv_client_ack(struct rte_mbuf *m, struct ipv4_hdr *iph,
 
             conn->proxy.isn = rte_be_to_cpu_32(th->recv_ack) - 1;
 
+            conn->proxy.ack_mbuf = m;
+
             synproxy_sent_backend_syn(m, iph, th, conn, &opts, dev);
         } else {
             rte_pktmbuf_free(m);