From 5d9e50fc950502698d3beb95577bc5fe441b38b7 Mon Sep 17 00:00:00 2001
From: Sergei Golubchik <sergii@pisem.net>
Date: Sat, 6 Apr 2013 15:51:08 +0200
Subject: MDEV-4244 [PATCH] Buffer overruns and use-after-free errors

fixes for gcc 4.8 -fsanitize=address
---
 sql/multi_range_read.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'sql/multi_range_read.cc')

diff --git a/sql/multi_range_read.cc b/sql/multi_range_read.cc
index e86c9ca251c..727ebc29032 100644
--- a/sql/multi_range_read.cc
+++ b/sql/multi_range_read.cc
@@ -1632,7 +1632,7 @@ int DsMrr_impl::dsmrr_explain_info(uint mrr_mode, char *str, size_t size)
 
     uint used_str_len= strlen(used_str);
     uint copy_len= min(used_str_len, size);
-    memcpy(str, used_str, size);
+    memcpy(str, used_str, copy_len);
     return copy_len;
   }
   return 0;
-- 
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