apacheGH-48105: [C++][Parquet][IPC] Cap allocated memory when fuzzing

Author: pitrou

cpp/src/arrow/CMakeLists.txt

@@ -511,6 +511,7 @@ set(ARROW_UTIL_SRCS
     util/float16.cc
     util/formatting.cc
     util/future.cc
+    util/fuzz_internal.cc
     util/hashing.cc
     util/int_util.cc
     util/io_util.cc

cpp/src/arrow/ipc/file_fuzz.cc

@@ -19,10 +19,11 @@
 
 #include "arrow/ipc/reader.h"
 #include "arrow/status.h"
+#include "arrow/util/fuzz_internal.h"
 #include "arrow/util/macros.h"
 
 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
   auto status = arrow::ipc::internal::FuzzIpcFile(data, static_cast<int64_t>(size));
-  ARROW_UNUSED(status);
+  arrow::internal::NoteFuzzStatus(status, data, static_cast<int64_t>(size));
   return 0;
 }

cpp/src/arrow/ipc/reader.cc

@@ -53,6 +53,7 @@
 #include "arrow/util/checked_cast.h"
 #include "arrow/util/compression.h"
 #include "arrow/util/endian.h"
+#include "arrow/util/fuzz_internal.h"
 #include "arrow/util/key_value_metadata.h"
 #include "arrow/util/logging_internal.h"
 #include "arrow/util/parallel.h"
@@ -2618,14 +2619,21 @@ Status ValidateFuzzBatch(const RecordBatch& batch) {
   return st;
 }
 
+IpcReadOptions FuzzingOptions() {
+  IpcReadOptions options;
+  options.memory_pool = ::arrow::internal::fuzzing_memory_pool();
+  return options;
+}
+
 }  // namespace
 
 Status FuzzIpcStream(const uint8_t* data, int64_t size) {
   auto buffer = std::make_shared<Buffer>(data, size);
   io::BufferReader buffer_reader(buffer);
 
   std::shared_ptr<RecordBatchReader> batch_reader;
-  ARROW_ASSIGN_OR_RAISE(batch_reader, RecordBatchStreamReader::Open(&buffer_reader));
+  ARROW_ASSIGN_OR_RAISE(batch_reader,
+                        RecordBatchStreamReader::Open(&buffer_reader, FuzzingOptions()));
   Status st;
 
   while (true) {
@@ -2645,7 +2653,8 @@ Status FuzzIpcFile(const uint8_t* data, int64_t size) {
   io::BufferReader buffer_reader(buffer);
 
   std::shared_ptr<RecordBatchFileReader> batch_reader;
-  ARROW_ASSIGN_OR_RAISE(batch_reader, RecordBatchFileReader::Open(&buffer_reader));
+  ARROW_ASSIGN_OR_RAISE(batch_reader,
+                        RecordBatchFileReader::Open(&buffer_reader, FuzzingOptions()));
   Status st;
 
   const int n_batches = batch_reader->num_record_batches();

cpp/src/arrow/ipc/stream_fuzz.cc

@@ -19,10 +19,11 @@
 
 #include "arrow/ipc/reader.h"
 #include "arrow/status.h"
+#include "arrow/util/fuzz_internal.h"
 #include "arrow/util/macros.h"
 
 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
   auto status = arrow::ipc::internal::FuzzIpcStream(data, static_cast<int64_t>(size));
-  ARROW_UNUSED(status);
+  arrow::internal::NoteFuzzStatus(status, data, static_cast<int64_t>(size));
   return 0;
 }

cpp/src/arrow/memory_pool.h

@@ -26,6 +26,7 @@
 #include "arrow/result.h"
 #include "arrow/status.h"
 #include "arrow/type_fwd.h"
+#include "arrow/util/macros.h"
 #include "arrow/util/visibility.h"
 
 namespace arrow {
@@ -245,6 +246,64 @@ class ARROW_EXPORT ProxyMemoryPool : public MemoryPool {
   std::unique_ptr<ProxyMemoryPoolImpl> impl_;
 };
 
+/// EXPERIMENTAL MemoryPool wrapper with an upper limit
+class ARROW_EXPORT CappedMemoryPool : public MemoryPool {
+ public:
+  CappedMemoryPool(MemoryPool* wrapped_pool, int64_t bytes_allocated_limit)
+      : wrapped_(wrapped_pool), bytes_allocated_limit_(bytes_allocated_limit) {}
+
+  using MemoryPool::Allocate;
+  using MemoryPool::Reallocate;
+
+  Status Allocate(int64_t size, int64_t alignment, uint8_t** out) override {
+    const auto attempted = size + wrapped_->bytes_allocated();
+    if (ARROW_PREDICT_FALSE(attempted >= bytes_allocated_limit_)) {
+      return OutOfMemory(attempted);
+    }
+    return wrapped_->Allocate(size, alignment, out);
+  }
+
+  Status Reallocate(int64_t old_size, int64_t new_size, int64_t alignment,
+                    uint8_t** ptr) override {
+    const auto attempted = new_size - old_size + wrapped_->bytes_allocated();
+    if (ARROW_PREDICT_FALSE(attempted >= bytes_allocated_limit_)) {
+      return OutOfMemory(attempted);
+    }
+    return wrapped_->Reallocate(old_size, new_size, alignment, ptr);
+  }
+
+  void Free(uint8_t* buffer, int64_t size, int64_t alignment) override {
+    return wrapped_->Free(buffer, size, alignment);
+  }
+
+  void ReleaseUnused() override { wrapped_->ReleaseUnused(); }
+
+  void PrintStats() override { wrapped_->PrintStats(); }
+
+  int64_t bytes_allocated() const override { return wrapped_->bytes_allocated(); }
+
+  int64_t max_memory() const override { return wrapped_->max_memory(); }
+
+  int64_t total_bytes_allocated() const override {
+    return wrapped_->total_bytes_allocated();
+  }
+
+  int64_t num_allocations() const override { return wrapped_->num_allocations(); }
+
+  std::string backend_name() const override { return wrapped_->backend_name(); }
+
+ private:
+  Status OutOfMemory(int64_t value) {
+    return Status::OutOfMemory(
+        "MemoryPool bytes_allocated cap exceeded: "
+        "limit=",
+        bytes_allocated_limit_, ", attempted=", value);
+  }
+
+  MemoryPool* wrapped_;
+  int64_t bytes_allocated_limit_;
+};
+
 /// \brief Return a process-wide memory pool based on the system allocator.
 ARROW_EXPORT MemoryPool* system_memory_pool();
 

cpp/src/arrow/memory_pool_test.cc

@@ -290,4 +290,6 @@ TEST(Jemalloc, GetAllocationStats) {
 #endif
 }
 
+// TODO test CappedMemoryPool
+
 }  // namespace arrow

cpp/src/arrow/util/fuzz_internal.cc

@@ -0,0 +1,39 @@
+// Licensed to the Apache Software Foundation (ASF) under one
+// or more contributor license agreements.  See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership.  The ASF licenses this file
+// to you under the Apache License, Version 2.0 (the
+// "License"); you may not use this file except in compliance
+// with the License.  You may obtain a copy of the License at
+//
+//   http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing,
+// software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied.  See the License for the
+// specific language governing permissions and limitations
+// under the License.
+
+#include "arrow/util/fuzz_internal.h"
+
+#include "arrow/memory_pool.h"
+#include "arrow/status.h"
+#include "arrow/util/logging_internal.h"
+
+namespace arrow::internal {
+
+MemoryPool* fuzzing_memory_pool() {
+  static auto pool = std::make_shared<::arrow::CappedMemoryPool>(
+      ::arrow::default_memory_pool(), /*bytes_allocated_limit=*/kFuzzingMemoryLimit);
+  return pool.get();
+}
+
+void NoteFuzzStatus(const Status& st, const uint8_t* data, int64_t size) {
+  if (st.IsOutOfMemory()) {
+    ARROW_LOG(WARNING) << "Fuzzing input with size=" << size
+                       << " hit allocation failure: " << st.ToString();
+  }
+}
+
+}  // namespace arrow::internal

cpp/src/arrow/util/fuzz_internal.h

@@ -0,0 +1,37 @@
+// Licensed to the Apache Software Foundation (ASF) under one
+// or more contributor license agreements.  See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership.  The ASF licenses this file
+// to you under the Apache License, Version 2.0 (the
+// "License"); you may not use this file except in compliance
+// with the License.  You may obtain a copy of the License at
+//
+//   http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing,
+// software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied.  See the License for the
+// specific language governing permissions and limitations
+// under the License.
+
+#pragma once
+
+#include <cstdint>
+
+#include "arrow/type_fwd.h"
+#include "arrow/util/macros.h"
+
+namespace arrow::internal {
+
+// The default rss_limit_mb on OSS-Fuzz is 2560 MB and we want to fail allocations
+// before that limit is reached, otherwise the fuzz target gets killed (GH-48105).
+constexpr int64_t kFuzzingMemoryLimit = 2200LL * 1000 * 1000;
+
+/// Return a memory pool that will not allocate more than kFuzzingMemoryLimit bytes.
+ARROW_EXPORT MemoryPool* fuzzing_memory_pool();
+
+// Optionally log the outcome of fuzzing an input
+ARROW_EXPORT void NoteFuzzStatus(const Status&, const uint8_t* data, int64_t size);
+
+}  // namespace arrow::internal

cpp/src/parquet/arrow/fuzz.cc

@@ -16,10 +16,11 @@
 // under the License.
 
 #include "arrow/status.h"
+#include "arrow/util/fuzz_internal.h"
 #include "parquet/arrow/reader.h"
 
 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
   auto status = parquet::arrow::internal::FuzzReader(data, static_cast<int64_t>(size));
-  ARROW_UNUSED(status);
+  arrow::internal::NoteFuzzStatus(status, data, static_cast<int64_t>(size));
   return 0;
 }

cpp/src/parquet/arrow/reader.cc

@@ -28,13 +28,15 @@
 #include "arrow/buffer.h"
 #include "arrow/extension_type.h"
 #include "arrow/io/memory.h"
+#include "arrow/memory_pool.h"
 #include "arrow/record_batch.h"
 #include "arrow/table.h"
 #include "arrow/type.h"
 #include "arrow/type_traits.h"
 #include "arrow/util/async_generator.h"
 #include "arrow/util/bit_util.h"
 #include "arrow/util/future.h"
+#include "arrow/util/fuzz_internal.h"
 #include "arrow/util/iterator.h"
 #include "arrow/util/logging_internal.h"
 #include "arrow/util/parallel.h"
@@ -1398,7 +1400,7 @@ namespace internal {
 
 namespace {
 
-Status FuzzReader(std::unique_ptr<FileReader> reader) {
+Status FuzzReadData(std::unique_ptr<FileReader> reader) {
   auto st = Status::OK();
   for (int i = 0; i < reader->num_row_groups(); ++i) {
     std::shared_ptr<Table> table;
@@ -1418,7 +1420,7 @@ Status FuzzReader(const uint8_t* data, int64_t size) {
 
   auto buffer = std::make_shared<::arrow::Buffer>(data, size);
   auto file = std::make_shared<::arrow::io::BufferReader>(buffer);
-  auto pool = ::arrow::default_memory_pool();
+  auto pool = ::arrow::internal::fuzzing_memory_pool();
 
   // Read Parquet file metadata only once, which will reduce iteration time slightly
   std::shared_ptr<FileMetaData> pq_md;
@@ -1440,7 +1442,7 @@ Status FuzzReader(const uint8_t* data, int64_t size) {
 
     std::unique_ptr<FileReader> reader;
     RETURN_NOT_OK(FileReader::Make(pool, std::move(pq_file_reader), properties, &reader));
-    st &= FuzzReader(std::move(reader));
+    st &= FuzzReadData(std::move(reader));
   }
   return st;
 }