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

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.

test/jdk/java/util/regex/NegativeArraySize.java

@@ -0,0 +1,42 @@
+/*
+ * Copyright (c) 2019, 2022, 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
+ * @bug 8223174
+ * @summary Pattern.compile() can throw confusing NegativeArraySizeException
+ * @requires os.maxMemory >= 6g & vm.bits == 64 & !vm.musl
+ * @run testng/othervm -Xms5G -Xmx5G NegativeArraySize
+ */
+
+import org.testng.annotations.Test;
+import static org.testng.Assert.assertThrows;
+
+import java.util.regex.Pattern;
+
+public class NegativeArraySize {
+    @Test
+    public static void testNegativeArraySize() {
+        assertThrows(OutOfMemoryError.class, () -> Pattern.compile("\\Q" + "a".repeat(42 + Integer.MAX_VALUE / 3)));
+    }
+}