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.
2026-03-26 17:11:57 -04:00 · 2026-03-26 17:11:57 -04:00 · 0a580b313d
commit 0a580b313d
70422 changed files with 17213626 additions and 0 deletions
--- a/test/jdk/java/foreign/TestUpcallHighArity.java
+++ b/test/jdk/java/foreign/TestUpcallHighArity.java
@ -0,0 +1,104 @@
+/*
+ * Copyright (c) 2020, 2023, 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
+ * @modules java.base/jdk.internal.foreign
+ * @build NativeTestHelper CallGeneratorHelper TestUpcallHighArity
+ *
+ * @run testng/othervm/native
+ *   --enable-native-access=ALL-UNNAMED
+ *   TestUpcallHighArity
+ */
+
+import java.lang.foreign.*;
+
+import org.testng.annotations.DataProvider;
+import org.testng.annotations.Test;
+
+import java.lang.invoke.MethodHandle;
+import java.lang.invoke.MethodType;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.concurrent.atomic.AtomicReference;
+import java.util.function.Consumer;
+
+public class TestUpcallHighArity extends CallGeneratorHelper {
+    static final MethodHandle MH_do_upcall;
+
+    static {
+        System.loadLibrary("TestUpcallHighArity");
+        MH_do_upcall = LINKER.downcallHandle(
+                findNativeOrThrow("do_upcall"),
+                FunctionDescriptor.ofVoid(C_POINTER,
+                S_PDI_LAYOUT, C_INT, C_DOUBLE, C_POINTER,
+                S_PDI_LAYOUT, C_INT, C_DOUBLE, C_POINTER,
+                S_PDI_LAYOUT, C_INT, C_DOUBLE, C_POINTER,
+                S_PDI_LAYOUT, C_INT, C_DOUBLE, C_POINTER)
+        );
+    }
+
+    @Test(dataProvider = "args")
+    public void testUpcall(MethodHandle downcall, MethodType upcallType,
+                           FunctionDescriptor upcallDescriptor) throws Throwable {
+        AtomicReference<Object[]> capturedArgs = new AtomicReference<>();
+        try (Arena arena = Arena.ofConfined()) {
+            Object[] args = new Object[upcallType.parameterCount() + 1];
+            args[0] = makeArgSaverCB(upcallDescriptor, arena, capturedArgs, -1);
+            List<MemoryLayout> argLayouts = upcallDescriptor.argumentLayouts();
+            List<Consumer<Object>> checks = new ArrayList<>();
+            for (int i = 1; i < args.length; i++) {
+                TestValue testValue = genTestValue(argLayouts.get(i - 1), arena);
+                args[i] = testValue.value();
+                checks.add(testValue.check());
+            }
+
+            downcall.invokeWithArguments(args);
+
+            Object[] capturedArgsArr = capturedArgs.get();
+            for (int i = 0; i < capturedArgsArr.length; i++) {
+                checks.get(i).accept(capturedArgsArr[i]);
+            }
+        }
+    }
+
+    @DataProvider
+    public static Object[][] args() {
+        return new Object[][]{
+            { MH_do_upcall,
+                MethodType.methodType(void.class,
+                    MemorySegment.class, int.class, double.class, MemorySegment.class,
+                    MemorySegment.class, int.class, double.class, MemorySegment.class,
+                    MemorySegment.class, int.class, double.class, MemorySegment.class,
+                    MemorySegment.class, int.class, double.class, MemorySegment.class),
+                FunctionDescriptor.ofVoid(
+                    S_PDI_LAYOUT, C_INT, C_DOUBLE, C_POINTER,
+                    S_PDI_LAYOUT, C_INT, C_DOUBLE, C_POINTER,
+                    S_PDI_LAYOUT, C_INT, C_DOUBLE, C_POINTER,
+                    S_PDI_LAYOUT, C_INT, C_DOUBLE, C_POINTER)
+            }
+        };
+    }
+
+}