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//===-- get_error_info_fuzzer.cpp -----------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#define SCUDO_FUZZ
#include "allocator_config.h"
#include "combined.h"
#include <fuzzer/FuzzedDataProvider.h>
#include <string>
#include <vector>
extern "C" int LLVMFuzzerTestOneInput(uint8_t *Data, size_t Size) {
using AllocatorT = scudo::Allocator<scudo::AndroidConfig>;
FuzzedDataProvider FDP(Data, Size);
uintptr_t FaultAddr = FDP.ConsumeIntegral<uintptr_t>();
uintptr_t MemoryAddr = FDP.ConsumeIntegral<uintptr_t>();
std::string MemoryAndTags =
FDP.ConsumeRandomLengthString(FDP.remaining_bytes());
const char *Memory = MemoryAndTags.c_str();
// Assume 16-byte alignment.
size_t MemorySize = (MemoryAndTags.length() / 17) * 16;
const char *MemoryTags = Memory + MemorySize;
std::string StackDepotBytes =
FDP.ConsumeRandomLengthString(FDP.remaining_bytes());
std::vector<char> StackDepot(sizeof(scudo::StackDepot), 0);
for (size_t i = 0; i < StackDepotBytes.length() && i < StackDepot.size();
++i) {
StackDepot[i] = StackDepotBytes[i];
}
std::string RegionInfoBytes =
FDP.ConsumeRandomLengthString(FDP.remaining_bytes());
std::vector<char> RegionInfo(AllocatorT::getRegionInfoArraySize(), 0);
for (size_t i = 0; i < RegionInfoBytes.length() && i < RegionInfo.size();
++i) {
RegionInfo[i] = RegionInfoBytes[i];
}
std::string RingBufferBytes = FDP.ConsumeRemainingBytesAsString();
// RingBuffer is too short.
if (!AllocatorT::setRingBufferSizeForBuffer(RingBufferBytes.data(),
RingBufferBytes.size()))
return 0;
scudo_error_info ErrorInfo;
AllocatorT::getErrorInfo(&ErrorInfo, FaultAddr, StackDepot.data(),
RegionInfo.data(), RingBufferBytes.data(), Memory,
MemoryTags, MemoryAddr, MemorySize);
return 0;
}
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