50 lines
2.0 KiB
Java
50 lines
2.0 KiB
Java
/*
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* Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/* @test
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* @bug 8163518
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* @summary Integer overflow when reading in large buffer
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* @requires (sun.arch.data.model == "64" & os.maxMemory > 4g)
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* @run main/othervm -Xmx4g OverflowInRead
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*/
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import java.io.StringBufferInputStream;
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public class OverflowInRead {
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public static void main(String[] args) throws Exception {
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String s = "_123456789_123456789_123456789_123456789"; // s.length() > 33
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try (StringBufferInputStream sbis = new StringBufferInputStream(s)) {
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int len1 = 33;
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byte[] buf1 = new byte[len1];
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if (sbis.read(buf1, 0, len1) != len1)
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throw new Exception("Expected to read " + len1 + " bytes");
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int len2 = Integer.MAX_VALUE - 32;
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byte[] buf2 = new byte[len2];
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int expLen2 = s.length() - len1;
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if (sbis.read(buf2, 0, len2) != expLen2)
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throw new Exception("Expected to read " + expLen2 + " bytes");
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}
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}
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}
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