From 8f341f6a194a4db6f6cc587cf624167321183a19 Mon Sep 17 00:00:00 2001
From: Moriyoshi Koizumi <moriyoshi@php.net>
Date: Mon, 24 Feb 2003 22:19:36 +0000
Subject: [PATCH] Fixed possible buffer overflow of php_strip_tags

---
 ext/standard/string.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/ext/standard/string.c b/ext/standard/string.c
index 77966c9726..e21cf53f06 100644
--- a/ext/standard/string.c
+++ b/ext/standard/string.c
@@ -3746,7 +3746,9 @@ reg_char:
 		c = *(++p);
 		i++;
 	}	
-	*rp = '\0';
+	if (rp < rbuf + len) {
+		*rp = '\0';
+	}
 	efree(buf);
 	if (allow)
 		efree(tbuf);
-- 
2.50.1