Fuzz introspector: /src/inspector/light/source_files/src/sample_encode_fuzzer.cc
For issues and ideas: https://github.com/ossf/fuzz-introspector/issues

Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked Calltree index Parent function Callsite Largest blocked function
9 9 google::protobuf::internal::InitSCCImpl(google::protobuf::internal::SCCInfoBase*) call site: 00009 __cxa_allocate_exception
7 49 google::protobuf::MessageLite::AppendToString(std::__1::basic_string , std::__1::allocator >*) const call site: 00049 snprintf
2 88 absl::lts_20260526::Status::~Status() call site: 00088
1 0 EP call site: 00000
1 28 google::protobuf::internal::ShutdownData::get() call site: 00028
1 41 google::protobuf::internal::(anonymous namespace)::InitSCC_DFS(google::protobuf::internal::SCCInfoBase*) call site: 00041
1 61 google::protobuf::SerializeToArrayImpl(google::protobuf::MessageLite const&, unsigned char*, int) call site: 00061
1 69 absl::lts_20260526::status_internal::StatusRep::Unref() const call site: 00069
1 86 absl::lts_20260526::inlined_vector_internal::Storage >::~Storage() call site: 00086 __cxa_begin_catch

Fuzzer calltree

0 LLVMFuzzerTestOneInput [function] [call site] 00000
1 sentencepiece::SentencePieceProcessor::SentencePieceProcessor() [function] [call site] 00001
1 sentencepiece::SentencePieceProcessor::SampleEncodeAsSerializedProto(std::__1::basic_string_view<char, std::__1::char_traits<char> >, int, float) const [function] [call site] 00002
2 sentencepiece::ImmutableSentencePieceText::ImmutableSentencePieceText() [function] [call site] 00003
3 sentencepiece::SentencePieceText::default_instance() [function] [call site] 00004
4 google::protobuf::internal::InitSCC(google::protobuf::internal::SCCInfoBase*) [function] [call site] 00005
5 google::protobuf::internal::InitSCCImpl(google::protobuf::internal::SCCInfoBase*) [function] [call site] 00006
6 google::protobuf::internal::LogMessage::LogMessage(google::protobuf::LogLevel, char const*, int) [function] [call site] 00007
6 google::protobuf::internal::LogMessage::operator<<(char const*) [function] [call site] 00008
6 google::protobuf::internal::LogFinisher::operator=(google::protobuf::internal::LogMessage&) [function] [call site] 00009
7 google::protobuf::internal::LogMessage::Finish() [function] [call site] 00010
8 __cxa_allocate_exception [call site] 00011
8 google::protobuf::FatalException::FatalException(char const*, int, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&) [function] [call site] 00012
9 std::exception::exception[abi:ne220000]() [function] [call site] 00013
9 std::exception::~exception() [call site] 00014
8 __cxa_throw [call site] 00015
8 google::protobuf::FatalException::~FatalException() [function] [call site] 00016
9 std::exception::~exception() [call site] 00017
8 __cxa_free_exception [call site] 00018
6 google::protobuf::internal::LogMessage::~LogMessage() [function] [call site] 00019
6 google::protobuf::internal::InitProtobufDefaults() [function] [call site] 00020
7 google::protobuf::internal::InitProtobufDefaultsSlow() [function] [call site] 00021
8 __cxa_guard_acquire [call site] 00022
8 google::protobuf::internal::InitProtobufDefaultsImpl() [function] [call site] 00023
9 google::protobuf::internal::OnShutdownDestroyString(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const*) [function] [call site] 00024
10 google::protobuf::internal::OnShutdownRun(void (*)(void const*), void const*) [function] [call site] 00025
11 google::protobuf::internal::ShutdownData::get() [function] [call site] 00026
12 __cxa_guard_acquire [call site] 00027
12 google::protobuf::internal::ShutdownData::ShutdownData() [function] [call site] 00028
13 google::protobuf::internal::WrappedMutex::WrappedMutex() [function] [call site] 00029
12 __cxa_guard_release [call site] 00030
12 __cxa_guard_abort [call site] 00031
11 google::protobuf::internal::MutexLock::MutexLock(google::protobuf::internal::WrappedMutex*) [function] [call site] 00032
12 google::protobuf::internal::WrappedMutex::Lock() [function] [call site] 00033
11 google::protobuf::internal::MutexLock::~MutexLock() [function] [call site] 00034
12 google::protobuf::internal::WrappedMutex::Unlock() [function] [call site] 00035
10 google::protobuf::internal::DestroyString(void const*) [function] [call site] 00036
8 __cxa_guard_release [call site] 00037
8 __cxa_guard_abort [call site] 00038
6 google::protobuf::internal::WrappedMutex::Lock() [function] [call site] 00039
6 google::protobuf::internal::(anonymous namespace)::InitSCC_DFS(google::protobuf::internal::SCCInfoBase*) [function] [call site] 00040
7 google::protobuf::internal::(anonymous namespace)::InitSCC_DFS(google::protobuf::internal::SCCInfoBase*) [function] [call site] 00041
8 google::protobuf::internal::(anonymous namespace)::InitSCC_DFS(google::protobuf::internal::SCCInfoBase*) [function] [call site] 00042
6 google::protobuf::internal::WrappedMutex::Unlock() [function] [call site] 00043
4 sentencepiece::SentencePieceText::internal_default_instance() [function] [call site] 00044
2 sentencepiece::ImmutableSentencePieceText::mutable_proto() [function] [call site] 00045
2 sentencepiece::ImmutableSentencePieceText::SerializeAsString() const [function] [call site] 00046
3 google::protobuf::MessageLite::SerializeAsString() const [function] [call site] 00047
4 google::protobuf::MessageLite::AppendToString(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >*) const [function] [call site] 00048
5 google::protobuf::MessageLite::AppendPartialToString(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >*) const [function] [call site] 00049
6 google::protobuf::internal::LogMessage::LogMessage(google::protobuf::LogLevel, char const*, int) [function] [call site] 00050
6 google::protobuf::internal::LogMessage::operator<<(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&) [function] [call site] 00051
6 google::protobuf::internal::LogMessage::operator<<(char const*) [function] [call site] 00052
6 google::protobuf::internal::LogMessage::operator<<(unsigned long) [function] [call site] 00053
7 snprintf [call site] 00054
6 google::protobuf::internal::LogFinisher::operator=(google::protobuf::internal::LogMessage&) [function] [call site] 00055
6 google::protobuf::internal::LogMessage::~LogMessage() [function] [call site] 00056
6 google::protobuf::STLStringResizeUninitialized(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >*, unsigned long) [function] [call site] 00057
6 google::protobuf::io::mutable_string_data(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >*) [function] [call site] 00058
6 google::protobuf::SerializeToArrayImpl(google::protobuf::MessageLite const&, unsigned char*, int) [function] [call site] 00059
7 google::protobuf::io::CodedOutputStream::IsDefaultSerializationDeterministic() [function] [call site] 00060
7 google::protobuf::io::EpsCopyOutputStream::EpsCopyOutputStream(void*, int, bool) [function] [call site] 00061
2 absl::lts_20260526::Status::~Status() [function] [call site] 00062
3 absl::lts_20260526::Status::Unref(unsigned long) [function] [call site] 00063
4 absl::lts_20260526::Status::IsInlined(unsigned long) [function] [call site] 00064
4 absl::lts_20260526::Status::RepToPointer(unsigned long) [function] [call site] 00065
5 absl::lts_20260526::Status::IsInlined(unsigned long) [function] [call site] 00066
5 __assert_fail [call site] 00067
4 absl::lts_20260526::status_internal::StatusRep::Unref() const [function] [call site] 00068
5 absl::lts_20260526::status_internal::StatusRep::~StatusRep() [function] [call site] 00069
6 absl::lts_20260526::InlinedVector<absl::lts_20260526::SourceLocation, 1ul, std::__1::allocator<absl::lts_20260526::SourceLocation> >::~InlinedVector() [function] [call site] 00070
7 absl::lts_20260526::inlined_vector_internal::Storage<absl::lts_20260526::SourceLocation, 1ul, std::__1::allocator<absl::lts_20260526::SourceLocation> >::~Storage() [function] [call site] 00071
8 absl::lts_20260526::inlined_vector_internal::Storage<absl::lts_20260526::SourceLocation, 1ul, std::__1::allocator<absl::lts_20260526::SourceLocation> >::GetSizeAndIsAllocated() [function] [call site] 00072
9 absl::lts_20260526::container_internal::internal_compressed_tuple::Elem<absl::lts_20260526::container_internal::CompressedTuple<std::__1::allocator<absl::lts_20260526::SourceLocation>, unsigned long>, 1>::type& absl::lts_20260526::container_internal::CompressedTuple<std::__1::allocator<absl::lts_20260526::SourceLocation>, unsigned long>::get<1>() & [function] [call site] 00073
10 absl::lts_20260526::container_internal::internal_compressed_tuple::Storage<unsigned long, 1ul, absl::lts_20260526::container_internal::internal_compressed_tuple::StorageTag<std::__1::allocator<absl::lts_20260526::SourceLocation>, unsigned long>, false>::get() & [function] [call site] 00074
8 absl::lts_20260526::inlined_vector_internal::Storage<absl::lts_20260526::SourceLocation, 1ul, std::__1::allocator<absl::lts_20260526::SourceLocation> >::DeallocateIfAllocated() [function] [call site] 00075
9 absl::lts_20260526::inlined_vector_internal::Storage<absl::lts_20260526::SourceLocation, 1ul, std::__1::allocator<absl::lts_20260526::SourceLocation> >::GetIsAllocated() const [function] [call site] 00076
10 absl::lts_20260526::inlined_vector_internal::Storage<absl::lts_20260526::SourceLocation, 1ul, std::__1::allocator<absl::lts_20260526::SourceLocation> >::GetSizeAndIsAllocated() const [function] [call site] 00077
11 absl::lts_20260526::container_internal::internal_compressed_tuple::Elem<absl::lts_20260526::container_internal::CompressedTuple<std::__1::allocator<absl::lts_20260526::SourceLocation>, unsigned long>, 1>::type const& absl::lts_20260526::container_internal::CompressedTuple<std::__1::allocator<absl::lts_20260526::SourceLocation>, unsigned long>::get<1>() const & [function] [call site] 00078
12 absl::lts_20260526::container_internal::internal_compressed_tuple::Storage<unsigned long, 1ul, absl::lts_20260526::container_internal::internal_compressed_tuple::StorageTag<std::__1::allocator<absl::lts_20260526::SourceLocation>, unsigned long>, false>::get() const & [function] [call site] 00079
9 absl::lts_20260526::inlined_vector_internal::Storage<absl::lts_20260526::SourceLocation, 1ul, std::__1::allocator<absl::lts_20260526::SourceLocation> >::GetAllocator() [function] [call site] 00080
10 absl::lts_20260526::container_internal::internal_compressed_tuple::Elem<absl::lts_20260526::container_internal::CompressedTuple<std::__1::allocator<absl::lts_20260526::SourceLocation>, unsigned long>, 0>::type& absl::lts_20260526::container_internal::CompressedTuple<std::__1::allocator<absl::lts_20260526::SourceLocation>, unsigned long>::get<0>() & [function] [call site] 00081
11 absl::lts_20260526::container_internal::internal_compressed_tuple::Storage<std::__1::allocator<absl::lts_20260526::SourceLocation>, 0ul, absl::lts_20260526::container_internal::internal_compressed_tuple::StorageTag<std::__1::allocator<absl::lts_20260526::SourceLocation>, unsigned long>, true>::get() & [function] [call site] 00082
9 absl::lts_20260526::inlined_vector_internal::Storage<absl::lts_20260526::SourceLocation, 1ul, std::__1::allocator<absl::lts_20260526::SourceLocation> >::GetAllocatedData() [function] [call site] 00083
9 absl::lts_20260526::inlined_vector_internal::Storage<absl::lts_20260526::SourceLocation, 1ul, std::__1::allocator<absl::lts_20260526::SourceLocation> >::GetAllocatedCapacity() const [function] [call site] 00084
9 absl::lts_20260526::inlined_vector_internal::MallocAdapter<std::__1::allocator<absl::lts_20260526::SourceLocation>, false>::Deallocate(std::__1::allocator<absl::lts_20260526::SourceLocation>&, absl::lts_20260526::SourceLocation*, unsigned long) [function] [call site] 00085
8 __clang_call_terminate [call site] 00086
9 __cxa_begin_catch [call site] 00087
3 __clang_call_terminate [call site] 00088
2 sentencepiece::ImmutableSentencePieceText::~ImmutableSentencePieceText() [function] [call site] 00089
1 sentencepiece::SentencePieceProcessor::~SentencePieceProcessor() [function] [call site] 00090