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