// Copyright 2016 the V8 project authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. // Trigger an infinite loop through RegExp.prototype[@@match], which results // in unbounded growth of the results array. // Limit the number of iterations to avoid OOM while still triggering large // object space allocation. const min_ptr_size = 4; const max_regular_heap_object_size = 507136; const num_iterations = max_regular_heap_object_size / min_ptr_size; let i = 0; const re = /foo.bar/; const RegExpPrototypeExec = RegExp.prototype.exec; re.exec = (str) => { return (i++ < num_iterations) ? RegExpPrototypeExec.call(re, str) : null; }; re.__defineGetter__("global", () => true); // Triggers infinite loop. "foo*bar".match(re); // Should not crash.