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diff --git a/deps/v8/test/mjsunit/regress/wasm/regress-734246.js b/deps/v8/test/mjsunit/regress/wasm/regress-734246.js
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+++ b/deps/v8/test/mjsunit/regress/wasm/regress-734246.js
@@ -0,0 +1,16 @@
+// Copyright 2017 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+load('test/mjsunit/wasm/wasm-constants.js');
+load('test/mjsunit/wasm/wasm-module-builder.js');
+
+let builder = new WasmModuleBuilder();
+builder.addExplicitSection([
+ kUnknownSectionCode,
+ // section length
+ 0x0f,
+ // name length: 0xffffffff
+ 0xf9, 0xff, 0xff, 0xff, 0x0f
+]);
+assertThrows(() => builder.instantiate(), WebAssembly.CompileError);