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/TestUpcallAsync.java
+++ b/test/jdk/java/foreign/TestUpcallAsync.java
@ -0,0 +1,114 @@
+/*
+ * Copyright (c) 2022, 2025, 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
+ * @requires !vm.musl
+ * @modules java.base/jdk.internal.foreign
+ * @build NativeTestHelper CallGeneratorHelper TestUpcallBase
+ *
+ * @run testng/othervm/native -XX:+IgnoreUnrecognizedVMOptions -XX:-VerifyDependencies
+ *   --enable-native-access=ALL-UNNAMED -Dgenerator.sample.factor=17
+ *   TestUpcallAsync
+ */
+
+import java.lang.foreign.*;
+
+import org.testng.annotations.Test;
+
+import java.lang.invoke.MethodHandle;
+import java.lang.invoke.MethodHandles;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.concurrent.atomic.AtomicReference;
+import java.util.function.Consumer;
+
+public class TestUpcallAsync extends TestUpcallBase {
+
+    static {
+        System.loadLibrary("TestUpcall");
+        System.loadLibrary("AsyncInvokers");
+    }
+
+    @Test(dataProvider="functions", dataProviderClass=CallGeneratorHelper.class)
+    public void testUpcallsAsync(int count, String fName, Ret ret, List<ParamType> paramTypes, List<StructFieldType> fields) throws Throwable {
+        List<Consumer<Object>> returnChecks = new ArrayList<>();
+        List<Consumer<Object>> argChecks = new ArrayList<>();
+        MemorySegment addr = findNativeOrThrow(fName);
+        try (Arena arena = Arena.ofShared()) {
+            FunctionDescriptor descriptor = function(ret, paramTypes, fields);
+            MethodHandle mh = downcallHandle(LINKER, addr, arena, descriptor);
+            AtomicReference<Object[]> capturedArgs = new AtomicReference<>();
+            Object[] args = makeArgs(capturedArgs, arena, descriptor, returnChecks, argChecks, 0);
+
+            mh = mh.asSpreader(Object[].class, args.length);
+            mh = MethodHandles.insertArguments(mh, 0, (Object) args);
+            FunctionDescriptor callbackDesc = descriptor.returnLayout()
+                    .map(FunctionDescriptor::of)
+                    .orElse(FunctionDescriptor.ofVoid());
+            MemorySegment callback = LINKER.upcallStub(mh, callbackDesc, arena);
+
+            MethodHandle invoker = asyncInvoker(ret, ret == Ret.VOID ? null : paramTypes.get(0), fields);
+
+            Object res = (descriptor.returnLayout().isPresent() &&
+                         descriptor.returnLayout().get() instanceof GroupLayout)
+                    ? invoker.invoke(arena, callback)
+                    : invoker.invoke(callback);
+
+            if (ret == Ret.NON_VOID) {
+                returnChecks.forEach(c -> c.accept(res));
+            }
+
+            Object[] capturedArgsArr = capturedArgs.get();
+            for (int i = 0; i < capturedArgsArr.length; i++) {
+                argChecks.get(i).accept(capturedArgsArr[i]);
+            }
+        }
+    }
+
+    private static final Map<String, MethodHandle> INVOKERS = new HashMap<>();
+
+    private MethodHandle asyncInvoker(Ret ret, ParamType returnType, List<StructFieldType> fields) {
+        if (ret == Ret.VOID) {
+            String name = "call_async_V";
+            return INVOKERS.computeIfAbsent(name, symbol ->
+                    LINKER.downcallHandle(
+                            findNativeOrThrow(symbol),
+                            FunctionDescriptor.ofVoid(C_POINTER)));
+        }
+
+        String name = "call_async_" + returnType.name().charAt(0)
+                + (returnType == ParamType.STRUCT ? "_" + sigCode(fields) : "");
+
+        return INVOKERS.computeIfAbsent(name, symbol -> {
+            MemorySegment invokerSymbol = findNativeOrThrow(symbol);
+            MemoryLayout returnLayout = returnType.layout(fields);
+            FunctionDescriptor desc = FunctionDescriptor.of(returnLayout, C_POINTER);
+
+            return LINKER.downcallHandle(invokerSymbol, desc);
+        });
+    }
+
+}