diff -r 000000000000 -r 6474c204b198 js/src/tests/js1_5/Regress/regress-280769-1.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/tests/js1_5/Regress/regress-280769-1.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,24 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+//-----------------------------------------------------------------------------
+var BUGNUMBER = 280769;
+var summary = 'Do not crash on overflow of 64K boundary of [] offset in regexp search string ';
+var actual = 'No Crash';
+var expect = 'No Crash';
+
+printBugNumber(BUGNUMBER);
+printStatus (summary);
+
+status = summary + ' ' + inSection(1) + ' (new RegExp("zzz...[AB]").exec("zzz...A") ';
+
+var N = 100 * 1000; // N should be more then 64K
+var a = new Array(N + 1);
+var prefix = a.join("z"); // prefix is sequence of N "z", zzz...zzz
+var str = prefix+"[AB]"; // str is zzz...zzz[AB]
+var re = new RegExp(str);
+re.exec(prefix+"A");
+
+reportCompare(expect, actual, status);