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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.
This commit is contained in:
russell@unturf.com 2026-03-26 17:11:57 -04:00
commit 0a580b313d
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test/hotspot/jtreg/compiler/rangechecks/TestArrayAccessAboveRCForArrayCopyLoad.java Normal file
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/*
* Copyright (c) 2024, Red Hat, Inc. 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
* @bug 8323274
* @summary converting an array copy to a series of loads/stores add loads that can float
* @run main/othervm -XX:-UseOnStackReplacement -XX:-TieredCompilation -XX:-BackgroundCompilation TestArrayAccessAboveRCForArrayCopyLoad
*/
public class TestArrayAccessAboveRCForArrayCopyLoad {
public static void main(String[] args) {
int[] array = new int[10];
for (int i = 0; i < 20_000; i++) {
test(array, 0, array, 1, false);
test(array, 0, array, 1, true);
}
try {
test(array, -1, array, 0, true);
} catch (ArrayIndexOutOfBoundsException arrayIndexOutOfBoundsException) {
}
}
private static void test(int[] src, int srcPos, int[] dst, int dstPos, boolean flag) {
if (src == null) {
}
if (srcPos < dstPos) {
if (flag) {
System.arraycopy(src, srcPos, dst, dstPos, 2);
} else {
System.arraycopy(src, srcPos, dst, dstPos, 2);
}
}
}
}