From 17b81b9e297ef5e5c75501b6cd48491b8e9bd038 Mon Sep 17 00:00:00 2001
From: Xie Han <63350856@qq.com>
Date: Sun, 27 Aug 2023 00:47:03 +0800
Subject: [PATCH] Make mysql parser more tolerant.

---
 src/protocol/mysql_parser.c | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/src/protocol/mysql_parser.c b/src/protocol/mysql_parser.c
index af610c3550..babe03b46d 100644
--- a/src/protocol/mysql_parser.c
+++ b/src/protocol/mysql_parser.c
@@ -207,11 +207,15 @@ static int parse_ok_packet(const void *buf, size_t len, mysql_parser_t *parser)
 		if (decode_string(&str, &info_len, &p, buf_end) == 0)
 			return -2;
 
-		if (server_status & MYSQL_SERVER_SESSION_STATE_CHANGED)
+		if (p != buf_end)
 		{
-			const unsigned char *tmp_str;
-			unsigned long long tmp_len;
-			if (decode_string(&tmp_str, &tmp_len, &p, buf_end) == 0)
+			if (server_status & MYSQL_SERVER_SESSION_STATE_CHANGED)
+			{
+				const unsigned char *tmp_str;
+				unsigned long long tmp_len;
+				if (decode_string(&tmp_str, &tmp_len, &p, buf_end) == 0)
+					return -2;
+			} else
 				return -2;
 		}
 	} else {