From: Dmitry Stogov <dmitry@zend.com>
Date: Fri, 6 May 2016 09:36:21 +0000 (+0300)
Subject: Fixed possible crash
X-Git-Tag: php-7.1.0alpha1~183
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=8ae695cd7515af0bcb84844392b5b00910d5cf5b;p=php

Fixed possible crash
---

diff --git a/ext/opcache/Optimizer/zend_call_graph.c b/ext/opcache/Optimizer/zend_call_graph.c
index f245d14eaa..c7bc7b2e3e 100644
--- a/ext/opcache/Optimizer/zend_call_graph.c
+++ b/ext/opcache/Optimizer/zend_call_graph.c
@@ -170,7 +170,7 @@ static int zend_analyze_calls(zend_arena **arena, zend_script *script, uint32_t
 						call_info->next_caller = NULL;
 					} else {
 						zend_func_info *callee_func_info = ZEND_FUNC_INFO(&func->op_array);
-						call_info->next_caller = callee_func_info->caller_info;
+						call_info->next_caller = callee_func_info ? callee_func_info->caller_info : NULL;
 					}
 				}
 				/* break missing intentionally */