3dbc04f72f
TryCatch only clears the pending exception if it has been propagated through OptionalRescheduleException. This is another tentative fix for https://crbug.com/754422. Bug: chromium:754422 Change-Id: Ifbbeed8ef44131a0a010ac6bde3adbbf9fb4c4af Reviewed-on: https://chromium-review.googlesource.com/637305 Reviewed-by: Yang Guo <yangguo@chromium.org> Commit-Queue: Jakob Gruber <jgruber@chromium.org> Cr-Commit-Position: refs/heads/master@{#47634}
87 lines
3.2 KiB
C++
87 lines
3.2 KiB
C++
// 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 <limits.h>
|
|
#include <stddef.h>
|
|
#include <stdint.h>
|
|
|
|
#include "include/v8.h"
|
|
#include "src/factory.h"
|
|
#include "src/objects-inl.h"
|
|
#include "src/objects.h"
|
|
#include "src/regexp/jsregexp.h"
|
|
#include "test/fuzzer/fuzzer-support.h"
|
|
|
|
namespace i = v8::internal;
|
|
|
|
void Test(v8::Isolate* isolate, i::Handle<i::JSRegExp> regexp,
|
|
i::Handle<i::String> subject,
|
|
i::Handle<i::RegExpMatchInfo> results_array) {
|
|
v8::TryCatch try_catch(isolate);
|
|
if (i::RegExpImpl::Exec(regexp, subject, 0, results_array).is_null()) {
|
|
i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate);
|
|
i_isolate->OptionalRescheduleException(true);
|
|
}
|
|
}
|
|
|
|
extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
|
|
v8_fuzzer::FuzzerSupport* support = v8_fuzzer::FuzzerSupport::Get();
|
|
v8::Isolate* isolate = support->GetIsolate();
|
|
|
|
v8::Isolate::Scope isolate_scope(isolate);
|
|
v8::HandleScope handle_scope(isolate);
|
|
v8::Context::Scope context_scope(support->GetContext());
|
|
v8::TryCatch try_catch(isolate);
|
|
|
|
i::FLAG_harmony_regexp_lookbehind = true;
|
|
|
|
i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate);
|
|
i::Factory* factory = i_isolate->factory();
|
|
|
|
if (size > INT_MAX) return 0;
|
|
i::MaybeHandle<i::String> maybe_source = factory->NewStringFromOneByte(
|
|
i::Vector<const uint8_t>(data, static_cast<int>(size)));
|
|
i::Handle<i::String> source;
|
|
if (!maybe_source.ToHandle(&source)) {
|
|
i_isolate->clear_pending_exception();
|
|
return 0;
|
|
}
|
|
|
|
static const int kAllFlags = i::JSRegExp::kGlobal | i::JSRegExp::kIgnoreCase |
|
|
i::JSRegExp::kMultiline | i::JSRegExp::kSticky |
|
|
i::JSRegExp::kUnicode;
|
|
|
|
const uint8_t one_byte_array[6] = {'f', 'o', 'o', 'b', 'a', 'r'};
|
|
const i::uc16 two_byte_array[6] = {'f', 0xD83D, 0xDCA9, 'b', 'a', 0x2603};
|
|
|
|
i::Handle<i::RegExpMatchInfo> results_array = factory->NewRegExpMatchInfo();
|
|
i::Handle<i::String> one_byte =
|
|
factory->NewStringFromOneByte(i::Vector<const uint8_t>(one_byte_array, 6))
|
|
.ToHandleChecked();
|
|
i::Handle<i::String> two_byte =
|
|
factory->NewStringFromTwoByte(i::Vector<const i::uc16>(two_byte_array, 6))
|
|
.ToHandleChecked();
|
|
|
|
i::Handle<i::JSRegExp> regexp;
|
|
{
|
|
v8::TryCatch try_catch(isolate);
|
|
// Create a string so that we can calculate a hash from the input data.
|
|
std::string str = std::string(reinterpret_cast<const char*>(data), size);
|
|
i::JSRegExp::Flags flag = static_cast<i::JSRegExp::Flags>(
|
|
std::hash<std::string>()(str) % (kAllFlags + 1));
|
|
i::MaybeHandle<i::JSRegExp> maybe_regexp = i::JSRegExp::New(source, flag);
|
|
if (!maybe_regexp.ToHandle(®exp)) {
|
|
i_isolate->clear_pending_exception();
|
|
return 0;
|
|
}
|
|
}
|
|
Test(isolate, regexp, one_byte, results_array);
|
|
Test(isolate, regexp, two_byte, results_array);
|
|
Test(isolate, regexp, factory->empty_string(), results_array);
|
|
Test(isolate, regexp, source, results_array);
|
|
isolate->RequestGarbageCollectionForTesting(
|
|
v8::Isolate::kFullGarbageCollection);
|
|
return 0;
|
|
}
|