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/TestUpcallException.java
+++ b/test/jdk/java/foreign/TestUpcallException.java
@ -0,0 +1,123 @@
+/*
+ * Copyright (c) 2021, 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
+ * @library /test/lib
+ * @build TestUpcallException
+ *
+ * @run testng/othervm/native
+ *   --enable-native-access=ALL-UNNAMED
+ *   TestUpcallException
+ */
+
+import org.testng.annotations.DataProvider;
+import org.testng.annotations.Test;
+
+import java.io.IOException;
+import java.lang.foreign.Arena;
+import java.lang.foreign.FunctionDescriptor;
+import java.lang.foreign.Linker;
+import java.lang.foreign.MemorySegment;
+import java.lang.invoke.MethodHandle;
+import java.lang.invoke.MethodHandles;
+import java.lang.invoke.MethodType;
+
+public class TestUpcallException extends UpcallTestHelper {
+
+    @Test(dataProvider = "exceptionCases")
+    public void testException(Class<?> target, boolean useSpec) throws InterruptedException, IOException {
+        runInNewProcess(target, useSpec)
+                .shouldNotHaveExitValue(0)
+                .stderrShouldContain("Testing upcall exceptions");
+    }
+
+    @DataProvider
+    public static Object[][] exceptionCases() {
+        return new Object[][]{
+            { VoidUpcallRunner.class,    false },
+            { NonVoidUpcallRunner.class, false },
+            { VoidUpcallRunner.class,    true  },
+            { NonVoidUpcallRunner.class, true  }
+        };
+    }
+
+    public static class VoidUpcallRunner extends ExceptionRunnerBase {
+        public static void main(String[] args) throws Throwable {
+            try (Arena arena = Arena.ofConfined()) {
+                MemorySegment stub = Linker.nativeLinker().upcallStub(VOID_TARGET, FunctionDescriptor.ofVoid(), arena);
+                downcallVoid.invoke(stub); // should call Shutdown.exit(1);
+            }
+        }
+    }
+
+    public static class NonVoidUpcallRunner extends ExceptionRunnerBase {
+        public static void main(String[] args) throws Throwable {
+            try (Arena arena = Arena.ofConfined()) {
+                MemorySegment stub = Linker.nativeLinker().upcallStub(INT_TARGET, FunctionDescriptor.of(C_INT, C_INT), arena);
+                downcallNonVoid.invoke(42, stub); // should call Shutdown.exit(1);
+            }
+        }
+    }
+
+    // where
+
+    private static class ExceptionRunnerBase {
+        static final MethodHandle downcallVoid;
+        static final MethodHandle downcallNonVoid;
+        static final MethodHandle VOID_TARGET;
+        static final MethodHandle INT_TARGET;
+
+        static final Thread.UncaughtExceptionHandler UNCAUGHT_EXCEPTION_HANDLER
+                = (thread, throwable) -> System.out.println("From uncaught exception handler");
+
+        static {
+                System.loadLibrary("TestUpcall");
+            downcallVoid = Linker.nativeLinker().downcallHandle(
+                findNativeOrThrow("f0_V__"),
+                    FunctionDescriptor.ofVoid(C_POINTER)
+            );
+            downcallNonVoid = Linker.nativeLinker().downcallHandle(
+                    findNativeOrThrow("f10_I_I_"),
+                    FunctionDescriptor.of(C_INT, C_INT, C_POINTER)
+            );
+            try {
+                MethodHandles.Lookup lookup = MethodHandles.lookup();
+                VOID_TARGET = lookup.findStatic(ExceptionRunnerBase.class, "throwException",
+                        MethodType.methodType(void.class));
+                INT_TARGET = lookup.findStatic(ExceptionRunnerBase.class, "throwException",
+                        MethodType.methodType(int.class, int.class));
+            } catch (ReflectiveOperationException e) {
+                throw new ExceptionInInitializerError(e);
+            }
+        }
+
+        public static void throwException() {
+            throw new RuntimeException("Testing upcall exceptions");
+        }
+
+        public static int throwException(int x) {
+            throw new RuntimeException("Testing upcall exceptions");
+        }
+    }
+}