diff --git a/common/src/tfe_ctrl_packet.cpp b/common/src/tfe_ctrl_packet.cpp
index c063e31..2af8876 100644
--- a/common/src/tfe_ctrl_packet.cpp
+++ b/common/src/tfe_ctrl_packet.cpp
@@ -117,11 +117,12 @@ static int fqdn_id_set_cmsg(struct ctrl_pkt_parser *handler, mpack_node_t node)
 static int sids_array_parse_mpack(struct ctrl_pkt_parser *handler, mpack_node_t node, int is_seq)
 {
     struct sids *sid = is_seq ? &handler->seq_sids : &handler->ack_sids;
-    if (mpack_node_array_length(node) > MR_SID_LIST_MAXLEN) {
+    sid->num = mpack_node_array_length(node);
+    if (sid->num > MR_SID_LIST_MAXLEN) {
+        TFE_LOG_ERROR(g_packet_io_logger, "%s: session %lu unexpected control packet: (%s sid num[%d] is invalid, over max num[%d])", LOG_TAG_CTRLPKT, handler->session_id, is_seq ? "seq" : "ack", sid->num, MR_SID_LIST_MAXLEN);
         return -1;
     }
 
-    sid->num = mpack_node_array_length(node);
     for (int i = 0; i < sid->num; i++)
     {
         sid->elems[i] = mpack_node_u16(mpack_node_array_at(node, i));
@@ -134,7 +135,7 @@ static int route_ctx_parse_mpack(struct ctrl_pkt_parser *handler, mpack_node_t n
     struct route_ctx *ctx = is_seq ? &handler->seq_route_ctx : &handler->ack_route_ctx;
     size_t len = mpack_node_bin_size(node);
     if (len < 0 || len > 64) {
-        TFE_LOG_ERROR(g_packet_io_logger, "%s: session %lu unexpected control packet: (%s route len[%ld] is invalid)", LOG_TAG_CTRLPKT, handler->session_id, is_seq ? "seq" : "ack", len);
+        TFE_LOG_ERROR(g_packet_io_logger, "%s: session %lu unexpected control packet: (%s route len[%ld] is invalid, over max size[64])", LOG_TAG_CTRLPKT, handler->session_id, is_seq ? "seq" : "ack", len);
         return -1;
     }
 
@@ -149,7 +150,7 @@ static int pkt_header_parse_mpack(struct ctrl_pkt_parser *handler, mpack_node_t
     int *header_len = is_seq ? &handler->seq_len : &handler->ack_len;
     size_t len = mpack_node_bin_size(node);
     if (len < 0) {
-        TFE_LOG_ERROR(g_packet_io_logger, "%s: session %lu unexpected control packet: (%s package header len[%ld] is invalid)", LOG_TAG_CTRLPKT, handler->session_id, is_seq ? "seq" : "ack", len);
+        TFE_LOG_ERROR(g_packet_io_logger, "%s: session %lu unexpected control packet: (%s packet header len[%ld] is invalid)", LOG_TAG_CTRLPKT, handler->session_id, is_seq ? "seq" : "ack", len);
         return -1;
     }
 
@@ -162,7 +163,7 @@ static int pkt_header_parse_mpack(struct ctrl_pkt_parser *handler, mpack_node_t
     return 0;
 }
 
-static void mpack_parse_uint(struct ctrl_pkt_parser *handler, mpack_node_t node, int table_index)
+static int mpack_parse_uint(struct ctrl_pkt_parser *handler, mpack_node_t node, int table_index)
 {
     uint64_t value = 0;
     int mode = mpack_table[table_index].mode;
@@ -181,6 +182,32 @@ static void mpack_parse_uint(struct ctrl_pkt_parser *handler, mpack_node_t node,
         case VARIABLE_MODE:
             if (mpack_table[table_index].type == MPACK_VAR_FLAG) {
                 handler->intercpet_data = mpack_node_u8(node);
+                if (handler->intercpet_data == 0) {
+                    if (handler->seq_sids.num == 0) {
+                        TFE_LOG_ERROR(g_packet_io_logger, "%s: session %lu unexpected control packet: (seq sid num is 0)", LOG_TAG_CTRLPKT, handler->session_id);
+                        return -1;
+                    }
+                    if (handler->ack_sids.num == 0) {
+                        TFE_LOG_ERROR(g_packet_io_logger, "%s: session %lu unexpected control packet: (ack sid num is 0)", LOG_TAG_CTRLPKT, handler->session_id);
+                        return -1;
+                    }
+                    if (handler->seq_route_ctx.len == 0) {
+                        TFE_LOG_ERROR(g_packet_io_logger, "%s: session %lu unexpected control packet: (seq route ctx len is 0)", LOG_TAG_CTRLPKT, handler->session_id);
+                        return -1;
+                    }
+                    if (handler->ack_route_ctx.len == 0) {
+                        TFE_LOG_ERROR(g_packet_io_logger, "%s: session %lu unexpected control packet: (ack route ctx len is 0)", LOG_TAG_CTRLPKT, handler->session_id);
+                        return -1;
+                    }
+                    if (handler->seq_len == 0) {
+                        TFE_LOG_ERROR(g_packet_io_logger, "%s: session %lu unexpected control packet: (seq packet header len is 0)", LOG_TAG_CTRLPKT, handler->session_id);
+                        return -1;
+                    }
+                    if (handler->ack_len == 0) {
+                        TFE_LOG_ERROR(g_packet_io_logger, "%s: session %lu unexpected control packet: (ack packet header len is 0)", LOG_TAG_CTRLPKT, handler->session_id);
+                        return -1;
+                    }
+                }
             }
             else if (mpack_table[table_index].type == MPACK_VAR_WSACLE_CLIENT_FLAG) {
                 handler->wsacle_client_flag = mpack_node_u8(node);
@@ -190,7 +217,7 @@ static void mpack_parse_uint(struct ctrl_pkt_parser *handler, mpack_node_t node,
             }
             break;
     }
-    return;
+    return 0;
 }
 
 static void mpack_parse_str(struct ctrl_pkt_parser *handler, mpack_node_t node, int table_index)
@@ -290,7 +317,9 @@ static int proxy_parse_messagepack(mpack_node_t node, void *ctx, void *logger)
         
         switch (mpack_node_type(ptr)) {
             case mpack_type_uint:
-                mpack_parse_uint(handler, ptr, i);
+                ret = mpack_parse_uint(handler, ptr, i);
+                if (ret != 0)
+                    return -1;
                 break;
             case mpack_type_str:
                 mpack_parse_str(handler, ptr, i);