From 0b2a884fe244e745adc9d3565edf26cb7ea2c852 Mon Sep 17 00:00:00 2001
From: Ibrahn Sahir <ibrahn.sahir@gmail.com>
Date: Thu, 15 Nov 2018 13:36:40 +0000
Subject: [PATCH] Assign pointer null in RegEx::clear to avoid double free on
 destruction.

(cherry picked from commit f8a1c77fcf1f501317f04528c31088d19e47ae86)
---
 modules/regex/regex.cpp | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/modules/regex/regex.cpp b/modules/regex/regex.cpp
index 5108a91652b..324dff72c2f 100644
--- a/modules/regex/regex.cpp
+++ b/modules/regex/regex.cpp
@@ -178,13 +178,17 @@ void RegEx::clear() {
 
 	if (sizeof(CharType) == 2) {
 
-		if (code)
+		if (code) {
 			pcre2_code_free_16((pcre2_code_16 *)code);
+			code = NULL;
+		}
 
 	} else {
 
-		if (code)
+		if (code) {
 			pcre2_code_free_32((pcre2_code_32 *)code);
+			code = NULL;
+		}
 	}
 }