From 0445abd547f4d7c4c694e2458d0581033e37398b Mon Sep 17 00:00:00 2001
From: Anatol Belski <ab@php.net>
Date: Thu, 18 Feb 2016 19:32:08 +0100
Subject: [PATCH] Fixed bug #71625 Crash in php7.dll with bad phar filename

---
 ext/phar/phar.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/ext/phar/phar.c b/ext/phar/phar.c
index 02776458f3b..228dfcaaaff 100644
--- a/ext/phar/phar.c
+++ b/ext/phar/phar.c
@@ -1791,8 +1791,11 @@ static int phar_analyze_path(const char *fname, const char *ext, int ext_len, in
 #ifdef PHP_WIN32
 				phar_unixify_path_separators(realpath, strlen(realpath));
 #endif
-				slash = strstr(realpath, filename) + ((ext - fname) + ext_len);
-				*slash = '\0';
+				slash = strstr(realpath, filename);
+				if (slash) {
+					slash += ((ext - fname) + ext_len);
+					*slash = '\0';
+				}
 				slash = strrchr(realpath, '/');
 
 				if (slash) {