Add a failing test for #406

yaml/src/test/java/com/fasterxml/jackson/dataformat/yaml/failing/FuzzYAMLRead_406_56902Test.java

@@ -0,0 +1,36 @@
+package com.fasterxml.jackson.dataformat.yaml.failing;
+
+import com.fasterxml.jackson.core.exc.StreamReadException;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.dataformat.yaml.ModuleTestBase;
+
+/**
+ * Reproduction of:
+ *
+ * https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=56902
+ *
+ * aka
+ *
+ * https://github.com/FasterXML/jackson-dataformats-text/issues/406
+ */
+public class FuzzYAMLRead_406_56902Test extends ModuleTestBase
+{
+    private final ObjectMapper YAML_MAPPER = newObjectMapper();
+
+    // [dataformats-text#406]: int overflow for YAML version
+    //
+    // Problem being value overflow wrt 32-bit integer for malformed YAML
+    // version indicators
+    public void testVersionNumberParsing56902() throws Exception
+    {
+        String input = "%YAML 1.9224775801";
+        try {
+            YAML_MAPPER.readTree(input);
+            fail("Should not pass");
+        } catch (StreamReadException e) {
+            // Not sure what to verify, but should be exposed as one of Jackson's
+            // exceptions (or possibly IOException)
+            verifyException(e, "Not a valid YAML version");
+        }
+    }
+}