From 3fdd84ad82afe71c9fa4852316f8ed6fcc6fa944 Mon Sep 17 00:00:00 2001
From: liang_feiteng <liangfeiteng1@huawei.com>
Date: Tue, 30 Jun 2020 15:16:41 +0800
Subject: [PATCH] fix char overflow bug#22124719

---
 mysql-5.7.27/strings/ctype-utf8.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mysql-5.7.27/strings/ctype-utf8.c b/mysql-5.7.27/strings/ctype-utf8.c
index 7dec9609..c7c92885 100644
--- a/mysql-5.7.27/strings/ctype-utf8.c
+++ b/mysql-5.7.27/strings/ctype-utf8.c
@@ -7475,7 +7475,7 @@ static const uint16 uni_FF20_FF5F[64]=
 
 static int hexlo(int x)
 {
-  static char hex_lo_digit[256]=
+  static signed char hex_lo_digit[256]=
   {
     -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, /* ................ */
     -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, /* ................ */
-- 
Gitee