[wasm] Read global names only if their name length is valid.

test/unittests/wasm/module-decoder-unittest.cc

Index: test/unittests/wasm/module-decoder-unittest.cc
diff --git a/test/unittests/wasm/module-decoder-unittest.cc b/test/unittests/wasm/module-decoder-unittest.cc
index 5c9c47ba00e075c8533cd12b3dd47d8b1f043247..03aa57c71ef368e7eda8f3fa71d01042c2f5536e 100644
--- a/test/unittests/wasm/module-decoder-unittest.cc
+++ b/test/unittests/wasm/module-decoder-unittest.cc
@@ -279,6 +279,18 @@ TEST_F(WasmModuleVerifyTest, GlobalWithInvalidNameOffset) {
   EXPECT_FAILURE(data);
 }
 
+TEST_F(WasmModuleVerifyTest, GlobalWithInvalidNameLength) {
+  static const byte data[] = {
+      SECTION(GLOBALS, 5),  // --
+      1,
+      NAME_LENGTH(56),  // invalid length
+      'g',              // name
+      kLocalI32,        // memory type
+      0,                // exported
+  };
+  EXPECT_FAILURE(data);
+}
+
 TEST_F(WasmModuleVerifyTest, GlobalWithInvalidMemoryType) {
   static const byte data[] = {
       SECTION(GLOBALS, 7),