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undefect. CWE-407 — 63 sites patched across 27 ecosystems

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Authors: russell@unturf.com · brackishbert@gmail.com · foxhop.net · TimeHexOn.com

Patches, unit tests, benchmarks, whitepaper, and outreach briefs.
Public domain — no copyright claimed. Use freely.
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russell@unturf.com 2026-03-26 17:11:57 -04:00
commit 0a580b313d
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64
test/hotspot/jtreg/runtime/Unsafe/GetPutInt.java Normal file
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/*
* Copyright (c) 2015, 2016, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/*
* @test
* @library /test/lib
* @modules java.base/jdk.internal.misc
* java.management
* @run main GetPutInt
*/
import java.lang.reflect.Field;
import jdk.internal.misc.Unsafe;
import static jdk.test.lib.Asserts.*;
public class GetPutInt {
public static void main(String args[]) throws Exception {
Unsafe unsafe = Unsafe.getUnsafe();
Test t = new Test();
Field field = Test.class.getField("i");
long offset = unsafe.objectFieldOffset(field);
assertEquals(-1, unsafe.getInt(t, offset));
unsafe.putInt(t, offset, 0);
assertEquals(0, unsafe.getInt(t, offset));
long address = unsafe.allocateMemory(8);
unsafe.putInt(address, 1);
assertEquals(1, unsafe.getInt(address));
unsafe.freeMemory(address);
int arrayInt[] = { -1, 0, 1, 2 };
int scale = unsafe.arrayIndexScale(arrayInt.getClass());
offset = unsafe.arrayBaseOffset(arrayInt.getClass());
for (int i = 0; i < arrayInt.length; i++) {
assertEquals(unsafe.getInt(arrayInt, offset), arrayInt[i]);
offset += scale;
}
}
static class Test {
public int i = -1;
}
}