// Copyright 2016 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. #include "test/fuzzer/wasm-section-fuzzers.h" #include "include/v8.h" #include "src/isolate.h" #include "src/wasm/wasm-module-builder.h" #include "src/wasm/wasm-module.h" #include "src/zone/accounting-allocator.h" #include "src/zone/zone.h" #include "test/common/wasm/wasm-module-runner.h" #include "test/fuzzer/fuzzer-support.h" using namespace v8::internal::wasm; static const char* kNameString = "name"; static const size_t kNameStringLength = 4; int fuzz_wasm_section(WasmSectionCode section, const uint8_t* data, size_t size) { v8_fuzzer::FuzzerSupport* support = v8_fuzzer::FuzzerSupport::Get(); v8::Isolate* isolate = support->GetIsolate(); v8::internal::Isolate* i_isolate = reinterpret_cast(isolate); // Clear any pending exceptions from a prior run. if (i_isolate->has_pending_exception()) { i_isolate->clear_pending_exception(); } v8::Isolate::Scope isolate_scope(isolate); v8::HandleScope handle_scope(isolate); v8::Context::Scope context_scope(support->GetContext()); v8::TryCatch try_catch(isolate); v8::internal::AccountingAllocator allocator; v8::internal::Zone zone(&allocator); ZoneBuffer buffer(&zone); buffer.write_u32(kWasmMagic); buffer.write_u32(kWasmVersion); if (section == kNameSectionCode) { buffer.write_u8(kUnknownSectionCode); buffer.write_size(size + kNameStringLength + 1); buffer.write_u8(kNameStringLength); buffer.write(reinterpret_cast(kNameString), kNameStringLength); buffer.write(data, size); } else { buffer.write_u8(section); buffer.write_size(size); buffer.write(data, size); } ErrorThrower thrower(i_isolate, "decoder"); std::unique_ptr module(testing::DecodeWasmModuleForTesting( i_isolate, &zone, &thrower, buffer.begin(), buffer.end(), kWasmOrigin)); return 0; }