fix crash

diff --git a/Zend/zend_execute_API.c b/Zend/zend_execute_API.c
index 52e36c27c9e74bf32145f51f058debd5bfa5a1c0..87bad2b53cb388a24504210dd67515da6d8476bf 100644 (file)
--- a/Zend/zend_execute_API.c
+++ b/Zend/zend_execute_API.c
@@ -882,6 +882,10 @@ ZEND_API int zend_lookup_class(char *name, int name_length, zend_class_entry ***
        char dummy = 1;
        zend_fcall_info fcall_info;
        zend_fcall_info_cache fcall_cache;
+
+       if (name == NULL) {
+               return FAILURE;
+       }
        
        lc_name = do_alloca(name_length + 1);
        zend_str_tolower_copy(lc_name, name, name_length);