- Fixed possible NULL ptr dereference

diff --git a/ext/phar/util.c b/ext/phar/util.c
index 898d8bd4b2146e3b92b759c3d8f667ea0a8cccda..227bd15dc715c9963970329f9c06464903a8e776 100644 (file)
--- a/ext/phar/util.c
+++ b/ext/phar/util.c
@@ -1262,8 +1262,10 @@ alias_success:
                                        spprintf(error, 0, "alias \"%s\" is already used for archive \"%s\" cannot be overloaded with \"%s\"", alias, (*fd_ptr)->fname, fname);
                                }
                                if (SUCCESS == phar_free_alias(*fd_ptr, alias, alias_len TSRMLS_CC)) {
-                                       efree(*error);
-                                       *error = NULL;
+                                       if (error) {
+                                               efree(*error);
+                                               *error = NULL;
+                                       }
                                }
                                return FAILURE;
                        }