Fuzz introspector
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Project coverage
Per-fuzzer coverage

Table of contents

Project overview: flatbuffers
High level conclusions
Reachability and coverage overview
Fuzzers overview
Project functions overview
Fuzzer details
Fuzzer: flexverifier_fuzzer
Call tree
Fuzz blockers
Runtime coverage analysis
Files reached
Fuzzer: verifier_fuzzer
Call tree
Fuzz blockers
Runtime coverage analysis
Files reached
Fuzzer: 64bit_fuzzer
Call tree
Fuzz blockers
Runtime coverage analysis
Files reached
Fuzzer: annotator_fuzzer
Call tree
Fuzz blockers
Runtime coverage analysis
Files reached
Fuzzer: parser_fuzzer
Call tree
Fuzz blockers
Runtime coverage analysis
Files reached
Fuzzer: scalar_fuzzer
Call tree
Fuzz blockers
Runtime coverage analysis
Files reached
Fuzzer: monster_fuzzer
Call tree
Fuzz blockers
Runtime coverage analysis
Files reached
Analyses and suggestions
Optimal target analysis
Remaining optimal interesting functions
All functions overview
Fuzz engine guidance
/src/flatbuffers/tests/fuzzer/flexbuffers_verifier_fuzzer.cc
Dictionary
Fuzzer function priority
/src/flatbuffers/tests/fuzzer/flatbuffers_verifier_fuzzer.cc
Dictionary
Fuzzer function priority
/src/flatbuffers/tests/fuzzer/flatbuffers_64bit_fuzzer.cc
Dictionary
Fuzzer function priority
/src/flatbuffers/tests/fuzzer/flatbuffers_annotator_fuzzer.cc
Dictionary
Fuzzer function priority
/src/flatbuffers/tests/fuzzer/flatbuffers_parser_fuzzer.cc
Dictionary
Fuzzer function priority
/src/flatbuffers/tests/fuzzer/flatbuffers_scalar_fuzzer.cc
Dictionary
Fuzzer function priority
/src/flatbuffers/tests/fuzzer/flatbuffers_monster_fuzzer.cc
Dictionary
Fuzzer function priority
Runtime coverage analysis
Complex functions with low coverage
Files and Directories in report
Files in report
Directories in report
Metadata section
Report generation date: 2025-07-11

Project overview: flatbuffers

High level conclusions

Reachability and coverage overview

Functions statically reachable by fuzzers
72.0%
1452 / 2003
Cyclomatic complexity statically reachable by fuzzers
84.0%
12897 / 15379
Runtime code coverage of functions
76.0%
1519 / 2003

Warning: The number of runtime covered functions are larger than the number of reachable functions. This means that Fuzz Introspector found there are more functions covered at runtime than what is considered reachable based on the static analysis. This is a limitation in the analysis as anything covered at runtime is by definition reachable by the fuzzers.
This is likely due to a limitation in the static analysis. In this case, the count of functions covered at runtime is the true value, which means this is what should be considered "achieved" by the fuzzer.

Use the project functions table below to query all functions that were not covered at runtime.

Fuzzers overview

Fuzzer Fuzzer filename Functions Reached Functions unreached Fuzzer depth Files reached Basic blocks reached Cyclomatic complexity Details
flexverifier_fuzzer /src/flatbuffers/tests/fuzzer/flexbuffers_verifier_fuzzer.cc 95 11 10 3 297 156 flexbuffers_verifier_fuzzer.cc
verifier_fuzzer /src/flatbuffers/tests/fuzzer/flatbuffers_verifier_fuzzer.cc 424 11 20 9 1341 736 flatbuffers_verifier_fuzzer.cc
64bit_fuzzer /src/flatbuffers/tests/fuzzer/flatbuffers_64bit_fuzzer.cc 312 227 10 11 741 451 flatbuffers_64bit_fuzzer.cc
annotator_fuzzer /src/flatbuffers/tests/fuzzer/flatbuffers_annotator_fuzzer.cc 573 360 14 15 2847 1743 flatbuffers_annotator_fuzzer.cc
parser_fuzzer /src/flatbuffers/tests/fuzzer/flatbuffers_parser_fuzzer.cc 1223 587 18 17 13639 9352 flatbuffers_parser_fuzzer.cc
scalar_fuzzer /src/flatbuffers/tests/fuzzer/flatbuffers_scalar_fuzzer.cc 1922 606 18 24 16306 10627 flatbuffers_scalar_fuzzer.cc
monster_fuzzer /src/flatbuffers/tests/fuzzer/flatbuffers_monster_fuzzer.cc 2227 558 23 26 17267 11103 flatbuffers_monster_fuzzer.cc

Project functions overview

The following table shows data about each function in the project. The functions included in this table correspond to all functions that exist in the executables of the fuzzers. As such, there may be functions that are from third-party libraries.

For further technical details on the meaning of columns in the below table, please see the Glossary .

Func name Functions filename Args Function call depth Reached by Fuzzers Runtime reached by Fuzzers Combined reached by Fuzzers Fuzzers runtime hit Func lines hit % I Count BB Count Cyclomatic complexity Functions reached Reached by functions Accumulated cyclomatic complexity Undiscovered complexity

Fuzzer details

Fuzzer: flexverifier_fuzzer

Call tree

The calltree shows the control flow of the fuzzer. This is overlaid with coverage information to display how much of the potential code a fuzzer can reach is in fact covered at runtime. In the following there is a link to a detailed calltree visualisation as well as a bitmap showing a high-level view of the calltree. For further information about these topics please see the glossary for full calltree and calltree overview

Full calltree

Call tree overview bitmap:

The distribution of callsites in terms of coloring is
Color Runtime hitcount Callsite count Percentage
red 0 1 1.02%
gold [1:9] 0 0.0%
yellow [10:29] 0 0.0%
greenyellow [30:49] 0 0.0%
lawngreen 50+ 97 98.9%
All colors 98 100

Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked Calltree index Parent function Callsite Largest blocked function
1 58 flexbuffers::Vector::operator[](unsigned long) const call site: 00058

Runtime coverage analysis

Covered functions
47
Functions that are reachable but not covered
2
Reachable functions
95
Percentage of reachable functions covered
97.89%
NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.
Function name source code lines source lines hit percentage hit

Files reached

filename functions hit
/src/flatbuffers/tests/fuzzer/flexbuffers_verifier_fuzzer.cc 1
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/flexbuffers.h 39
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/base.h 8

Fuzzer: verifier_fuzzer

Call tree

The calltree shows the control flow of the fuzzer. This is overlaid with coverage information to display how much of the potential code a fuzzer can reach is in fact covered at runtime. In the following there is a link to a detailed calltree visualisation as well as a bitmap showing a high-level view of the calltree. For further information about these topics please see the glossary for full calltree and calltree overview

Full calltree

Call tree overview bitmap:

The distribution of callsites in terms of coloring is
Color Runtime hitcount Callsite count Percentage
red 0 2 0.46%
gold [1:9] 0 0.0%
yellow [10:29] 0 0.0%
greenyellow [30:49] 0 0.0%
lawngreen 50+ 425 99.5%
All colors 427 100

Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked Calltree index Parent function Callsite Largest blocked function
1 204 flexbuffers::VerifyBuffer(unsigned char const*, unsigned long, std::__1::vector >*) call site: 00204
1 257 flexbuffers::Vector::operator[](unsigned long) const call site: 00257

Runtime coverage analysis

Covered functions
215
Functions that are reachable but not covered
8
Reachable functions
424
Percentage of reachable functions covered
98.11%
NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.
Function name source code lines source lines hit percentage hit

Files reached

filename functions hit
/src/flatbuffers/tests/fuzzer/flatbuffers_verifier_fuzzer.cc 1
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/verifier.h 55
/src/flatbuffers/tests/fuzzer/../../tests/cpp17/generated_cpp17/monster_test_generated.h 42
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/buffer.h 6
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/base.h 10
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/table.h 50
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/vector.h 15
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/flex_flat_util.h 1
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/flexbuffers.h 39

Fuzzer: 64bit_fuzzer

Call tree

The calltree shows the control flow of the fuzzer. This is overlaid with coverage information to display how much of the potential code a fuzzer can reach is in fact covered at runtime. In the following there is a link to a detailed calltree visualisation as well as a bitmap showing a high-level view of the calltree. For further information about these topics please see the glossary for full calltree and calltree overview

Full calltree

Call tree overview bitmap:

The distribution of callsites in terms of coloring is
Color Runtime hitcount Callsite count Percentage
red 0 13 4.98%
gold [1:9] 2 0.76%
yellow [10:29] 0 0.0%
greenyellow [30:49] 0 0.0%
lawngreen 50+ 246 94.2%
All colors 261 100

Fuzz blockers

The followings are the branches where fuzzer fails to bypass.

Unique non-covered Complexity Unique Reachable Complexities Unique Reachable Functions All non-covered Complexity All Reachable Complexity Function Name Function Callsite Blocked Branch
0 105 3 :

['reflection::KeyValue::Verify(flatbuffers::VerifierTemplate &) const', 'flatbuffers::Vector , unsigned int>::Get(unsigned int) const', 'flatbuffers::Vector , unsigned int>::size() const']

0 105 boolflatbuffers::VerifierTemplate ::VerifyVectorOfTables (flatbuffers::Vector ,unsignedint>const*) call site: 00000 /src/flatbuffers/tests/fuzzer/../../include/flatbuffers/verifier.h:174
0 0 None 0 291 boolflatbuffers::VerifierTemplate ::VerifyBufferFromStart (charconst*,unsignedlong) call site: 00000 /src/flatbuffers/tests/fuzzer/../../include/flatbuffers/verifier.h:208
0 0 None 0 0 boolflatbuffers::VerifierTemplate ::VerifyBufferFromStart (charconst*,unsignedlong) call site: 00000 /src/flatbuffers/tests/fuzzer/../../include/flatbuffers/verifier.h:216
0 0 None 0 0 flatbuffers::ReadEnvironmentVariable(charconst*,std::__1::basic_string ,std::__1::allocator >*) call site: 00000 /src/flatbuffers/src/util.cpp:438

Runtime coverage analysis

Covered functions
253
Functions that are reachable but not covered
12
Reachable functions
312
Percentage of reachable functions covered
96.15%
NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.
Function name source code lines source lines hit percentage hit

Files reached

filename functions hit
/src/flatbuffers/tests/fuzzer/flatbuffers_64bit_fuzzer.cc 12
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/verifier.h 34
/src/flatbuffers/tests/fuzzer/../../tests/64bit/test_64bit_generated.h 20
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/base.h 11
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/buffer.h 9
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/table.h 30
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/vector.h 38
/src/flatbuffers/tests/fuzzer/../../tests/test_assert.h 2
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/util.h 1
/src/flatbuffers/tests/test_assert.cpp 1
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/string.h 2

Fuzzer: annotator_fuzzer

Call tree

The calltree shows the control flow of the fuzzer. This is overlaid with coverage information to display how much of the potential code a fuzzer can reach is in fact covered at runtime. In the following there is a link to a detailed calltree visualisation as well as a bitmap showing a high-level view of the calltree. For further information about these topics please see the glossary for full calltree and calltree overview

Full calltree

Call tree overview bitmap:

The distribution of callsites in terms of coloring is
Color Runtime hitcount Callsite count Percentage
red 0 194 17.7%
gold [1:9] 0 0.0%
yellow [10:29] 9 0.82%
greenyellow [30:49] 16 1.46%
lawngreen 50+ 872 79.9%
All colors 1091 100

Fuzz blockers

The followings are the branches where fuzzer fails to bypass.

Unique non-covered Complexity Unique Reachable Complexities Unique Reachable Functions All non-covered Complexity All Reachable Complexity Function Name Function Callsite Blocked Branch
18 18 2 :

['std::__1::optional ::operator*[abi:ne180100]() const &', 'std::__1::optional flatbuffers::BinaryAnnotator::ReadScalar (unsigned long) const']

128 348 flatbuffers::BinaryAnnotator::BuildHeader(unsignedlong) call site: 00000 /src/flatbuffers/src/binary_annotator.cpp:164
14 14 2 :

['std::__1::optional flatbuffers::BinaryAnnotator::ReadScalar (unsigned long) const', '_ZNSt3__18optionalImEC2B8ne180100IRmTnNS_9enable_ifIXclsr22_CheckOptionalArgsCtorIT_EE17__enable_implicitIS5_EEEiE4typeELi0EEEOS5_']

476 3973 flatbuffers::BinaryAnnotator::BuildVector(unsignedlong,reflection::Objectconst*,reflection::Fieldconst*,unsignedlong,std::__1::map ,std::__1::allocator >>) call site: 00000 /src/flatbuffers/src/binary_annotator.cpp:1053
4 4 15 :

['std::__1::__fs::filesystem::directory_iterator::directory_iterator[abi:ne180100](std::__1::__fs::filesystem::path const&)', 'std::__1::__fs::filesystem::begin[abi:ne180100](std::__1::__fs::filesystem::directory_iterator)', 'std::__1::__fs::filesystem::path::parent_path[abi:ne180100]() const', 'std::__1::__fs::filesystem::path::~path[abi:ne180100]()', 'std::__1::basic_string , std::__1::allocator >::~basic_string()', 'std::__1::__fs::filesystem::directory_iterator::operator*[abi:ne180100]() const', 'std::__1::__fs::filesystem::operator!=[abi:ne180100](std::__1::__fs::filesystem::directory_iterator const&, std::__1::__fs::filesystem::directory_iterator const&)', 'std::__1::__fs::filesystem::directory_iterator::operator++[abi:ne180100]()', 'std::__1::__fs::filesystem::directory_entry::path[abi:ne180100]() const', 'std::__1::__fs::filesystem::path::string[abi:ne180100]() const', 'bool flatbuffers::IsConstTrue (bool)', 'std::__1::__fs::filesystem::end[abi:ne180100](std::__1::__fs::filesystem::directory_iterator)', 'std::__1::__fs::filesystem::directory_iterator::~directory_iterator[abi:ne180100]()', 'std::__1::__fs::filesystem::directory_iterator::directory_iterator[abi:ne180100](std::__1::__fs::filesystem::directory_iterator const&)', 'std::__1::basic_string , std::__1::allocator >::c_str[abi:ne180100]() const']

4 4 TestFileExists(std::__1::__fs::filesystem::path) call site: 00000 /src/flatbuffers/tests/fuzzer/flatbuffers_annotator_fuzzer.cc:13
0 128 3 :

['reflection::SchemaFile::Verify(flatbuffers::VerifierTemplate &) const', 'flatbuffers::Vector , unsigned int>::Get(unsigned int) const', 'flatbuffers::Vector , unsigned int>::size() const']

0 128 boolflatbuffers::VerifierTemplate ::VerifyVectorOfTables (flatbuffers::Vector ,unsignedint>const*) call site: 00000 /src/flatbuffers/tests/fuzzer/../../include/flatbuffers/verifier.h:174
0 105 3 :

['reflection::KeyValue::Verify(flatbuffers::VerifierTemplate &) const', 'flatbuffers::Vector , unsigned int>::Get(unsigned int) const', 'flatbuffers::Vector , unsigned int>::size() const']

0 105 boolflatbuffers::VerifierTemplate ::VerifyVectorOfTables (flatbuffers::Vector ,unsignedint>const*) call site: 00000 /src/flatbuffers/tests/fuzzer/../../include/flatbuffers/verifier.h:174
0 42 3 :

['flatbuffers::VerifierTemplate ::VerifyString(flatbuffers::String const*) const', 'flatbuffers::Vector , unsigned int>::size() const', 'flatbuffers::Vector , unsigned int>::Get(unsigned int) const']

0 42 flatbuffers::VerifierTemplate ::VerifyVectorOfStrings(flatbuffers::Vector ,unsignedint>const*)const call site: 00000 /src/flatbuffers/tests/fuzzer/../../include/flatbuffers/verifier.h:163
0 2 2 :

['flatbuffers::(anonymous namespace)::SetError(flatbuffers::BinaryRegionComment&, flatbuffers::BinaryRegionStatus, std::__1::basic_string , std::__1::allocator >)', '_ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEEC2B8ne180100ILi0EEEPKc']

24 39 flatbuffers::BinaryAnnotator::GetOrBuildVTable(unsignedlong,reflection::Objectconst*,unsignedlong)::$_0::operator()(reflection::Fieldconst*)const call site: 00000 /src/flatbuffers/src/binary_annotator.cpp:404
0 0 None 352 5728 flatbuffers::BinaryAnnotator::BuildTable(unsignedlong,flatbuffers::BinarySectionType,reflection::Objectconst*) call site: 00000 /src/flatbuffers/src/binary_annotator.cpp:701
0 0 None 110 1377 flatbuffers::BinaryAnnotator::BuildVector(unsignedlong,reflection::Objectconst*,reflection::Fieldconst*,unsignedlong,std::__1::map ,std::__1::allocator >>) call site: 00000 /src/flatbuffers/src/binary_annotator.cpp:1270
0 0 None 102 1267 flatbuffers::BinaryAnnotator::BuildVector(unsignedlong,reflection::Objectconst*,reflection::Fieldconst*,unsignedlong,std::__1::map ,std::__1::allocator >>) call site: 00000 /src/flatbuffers/src/binary_annotator.cpp:1132
0 0 None 102 1267 flatbuffers::BinaryAnnotator::BuildVector(unsignedlong,reflection::Objectconst*,reflection::Fieldconst*,unsignedlong,std::__1::map ,std::__1::allocator >>) call site: 00000 /src/flatbuffers/src/binary_annotator.cpp:1157
0 0 None 96 234 flatbuffers::BinaryAnnotator::GetOrBuildVTable(unsignedlong,reflection::Objectconst*,unsignedlong) call site: 00000 /src/flatbuffers/src/binary_annotator.cpp:315

Runtime coverage analysis

Covered functions
233
Functions that are reachable but not covered
133
Reachable functions
573
Percentage of reachable functions covered
76.79%
NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.
Function name source code lines source lines hit percentage hit

Files reached

filename functions hit
/src/flatbuffers/tests/fuzzer/flatbuffers_annotator_fuzzer.cc 1
/src/flatbuffers/tests/fuzzer/../../src/binary_annotator.h 6
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/reflection_generated.h 64
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/buffer.h 14
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/base.h 13
/src/flatbuffers/src/binary_annotator.cpp 19
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/verifier.h 48
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/table.h 41
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/vector.h 31
/src/flatbuffers/src/binary_annotator.h 30
/usr/local/bin/../include/c++/v1/optional 17
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/string.h 2
/src/flatbuffers/src/reflection.cpp 1
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/reflection.h 2
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/util.h 1

Fuzzer: parser_fuzzer

Call tree

The calltree shows the control flow of the fuzzer. This is overlaid with coverage information to display how much of the potential code a fuzzer can reach is in fact covered at runtime. In the following there is a link to a detailed calltree visualisation as well as a bitmap showing a high-level view of the calltree. For further information about these topics please see the glossary for full calltree and calltree overview

Full calltree

Call tree overview bitmap:

The distribution of callsites in terms of coloring is
Color Runtime hitcount Callsite count Percentage
red 0 594 23.1%
gold [1:9] 64 2.49%
yellow [10:29] 42 1.63%
greenyellow [30:49] 28 1.09%
lawngreen 50+ 1837 71.6%
All colors 2565 100

Fuzz blockers

The followings are the branches where fuzzer fails to bypass.

Unique non-covered Complexity Unique Reachable Complexities Unique Reachable Functions All non-covered Complexity All Reachable Complexity Function Name Function Callsite Blocked Branch
9328 9328 1 :

['flatbuffers::Parser::ParseNestedFlatbuffer(flatbuffers::Value&, flatbuffers::FieldDef*, unsigned long, flatbuffers::StructDef const*)']

9332 9406 flatbuffers::Parser::ParseTable(flatbuffers::StructDefconst&,std::__1::basic_string ,std::__1::allocator >*,unsignedint*)::$_0::operator()(std::__1::basic_string ,std::__1::allocator >const&,unsignedlong&,flatbuffers::StructDefconst*)const call site: 00000 /src/flatbuffers/src/idl_parser.cpp:1528
32 32 2 :

['std::__1::basic_string , std::__1::allocator > std::__1::operator+[abi:ne180100] , std::__1::allocator >(std::__1::basic_string , std::__1::allocator >&&, std::__1::basic_string , std::__1::allocator >&&)', 'std::__1::basic_string , std::__1::allocator > flatbuffers::(anonymous namespace)::TypeToIntervalString ()']

32 98 flatbuffers::CheckedErrorflatbuffers::(anonymousnamespace)::atot (charconst*,flatbuffers::Parser&,float*) call site: 00000 /src/flatbuffers/src/idl_parser.cpp:117
32 32 2 :

['std::__1::basic_string , std::__1::allocator > std::__1::operator+[abi:ne180100] , std::__1::allocator >(std::__1::basic_string , std::__1::allocator >&&, std::__1::basic_string , std::__1::allocator >&&)', 'std::__1::basic_string , std::__1::allocator > flatbuffers::(anonymous namespace)::TypeToIntervalString ()']

32 98 flatbuffers::CheckedErrorflatbuffers::(anonymousnamespace)::atot (charconst*,flatbuffers::Parser&,double*) call site: 00000 /src/flatbuffers/src/idl_parser.cpp:117
16 9562 45 :

['std::__1::__wrap_iter ::operator++[abi:ne180100]()', 'std::__1::vector >::end[abi:ne180100]()', 'std::__1::map , std::__1::allocator >, flatbuffers::StructDef*, std::__1::less , std::__1::allocator > >, std::__1::allocator , std::__1::allocator > const, flatbuffers::StructDef*> > >::erase[abi:ne180100](std::__1::__map_iterator , std::__1::allocator >, flatbuffers::StructDef*>, std::__1::__tree_node , std::__1::allocator >, flatbuffers::StructDef*>, void*>*, long> >)', 'flatbuffers::(anonymous namespace)::NoError()', 'std::__1::vector >::end[abi:ne180100]()', 'std::__1::vector >::end[abi:ne180100]() const', 'flatbuffers::Parser::CheckPrivateLeak()', 'flatbuffers::CheckedError::~CheckedError()', 'std::__1::vector >::erase[abi:ne180100](std::__1::__wrap_iter )', 'operator delete(void*)', 'std::__1::vector >::begin[abi:ne180100]() const', 'bool std::__1::operator!=[abi:ne180100] (std::__1::__wrap_iter const&, std::__1::__wrap_iter const&)', 'bool std::__1::operator!=[abi:ne180100] (std::__1::__wrap_iter const&, std::__1::__wrap_iter const&)', 'std::__1::basic_string , std::__1::allocator > std::__1::operator+[abi:ne180100] , std::__1::allocator >(std::__1::basic_string , std::__1::allocator >&&, char const*)', 'std::__1::__wrap_iter ::operator*[abi:ne180100]() const', 'std::__1::__wrap_iter ::operator*[abi:ne180100]() const', 'flatbuffers::IsString(flatbuffers::Type const&)', 'std::__1::basic_string , std::__1::allocator > std::__1::operator+[abi:ne180100] , std::__1::allocator >(char const*, std::__1::basic_string , std::__1::allocator >&&)', 'flatbuffers::CheckedError::CheckedError(flatbuffers::CheckedError const&)', 'flatbuffers::IsVector(flatbuffers::Type const&)', 'flatbuffers::IsStruct(flatbuffers::Type const&)', 'flatbuffers::StructDef::~StructDef()', 'flatbuffers::Parser::LookupEnum(std::__1::basic_string , std::__1::allocator > const&)', 'std::__1::__wrap_iter ::operator++[abi:ne180100]()', 'std::__1::vector >::begin[abi:ne180100]()', 'std::__1::vector >::begin[abi:ne180100]()', 'std::__1::basic_string , std::__1::allocator > std::__1::operator+[abi:ne180100] , std::__1::allocator >(std::__1::basic_string , std::__1::allocator >&&, std::__1::basic_string , std::__1::allocator > const&)', 'std::__1::vector , std::__1::allocator >, std::__1::allocator , std::__1::allocator > > >::size[abi:ne180100]() const', 'std::__1::map , std::__1::allocator >, flatbuffers::StructDef*, std::__1::less , std::__1::allocator > >, std::__1::allocator , std::__1::allocator > const, flatbuffers::StructDef*> > >::find[abi:ne180100](std::__1::basic_string , std::__1::allocator > const&)', 'bool std::__1::operator!=[abi:ne180100] (std::__1::__wrap_iter const&, std::__1::__wrap_iter const&)', 'flatbuffers::Parser::DoParseJson()', 'bool std::__1::operator!=[abi:ne180100] (std::__1::__wrap_iter const&, std::__1::__wrap_iter const&)', 'std::__1::__wrap_iter ::operator++[abi:ne180100]()', 'flatbuffers::Namespace::GetFullyQualifiedName(std::__1::basic_string , std::__1::allocator > const&, unsigned long) const', 'std::__1::__wrap_iter ::operator++[abi:ne180100]()', 'std::__1::vector >::end[abi:ne180100]()', 'flatbuffers::Parser::SupportsAdvancedUnionFeatures() const', 'std::__1::__wrap_iter ::operator*[abi:ne180100]() const', 'flatbuffers::CheckedError::Check()', 'flatbuffers::EnumDef::Vals() const', 'std::__1::basic_string , std::__1::allocator > flatbuffers::NumToString (int)', '_ZNSt3__111__wrap_iterIPKPN11flatbuffers9StructDefEEC2B8ne180100IPS3_TnNS_9enable_ifIXsr14is_convertibleIT_S5_EE5valueEiE4typeELi0EEERKNS0_ISA_EE', 'std::__1::__wrap_iter ::operator*[abi:ne180100]() const', 'std::__1::vector >::begin[abi:ne180100]()', 'std::__1::basic_string , std::__1::allocator > std::__1::operator+[abi:ne180100] , std::__1::allocator >(std::__1::basic_string , std::__1::allocator >&&, std::__1::basic_string , std::__1::allocator >&&)']

16 9760 flatbuffers::Parser::ParseRoot(charconst*,charconst**,charconst*) call site: 00000 /src/flatbuffers/src/idl_parser.cpp:3512
0 755 1 :

['flatbuffers::Parser::ParseFlexBuffer(char const*, char const*, flexbuffers::Builder*)']

0 755 flatbuffers::Parser::Parse(charconst*,charconst**,charconst*) call site: 00000 /src/flatbuffers/src/idl_parser.cpp:3469
0 590 19 :

['flatbuffers::SymbolTable ::Lookup(std::__1::basic_string , std::__1::allocator > const&) const', 'flatbuffers::(anonymous namespace)::NoError()', 'std::__1::basic_string , std::__1::allocator > std::__1::operator+[abi:ne180100] , std::__1::allocator >(std::__1::basic_string , std::__1::allocator >&&, std::__1::basic_string , std::__1::allocator > const&)', 'flatbuffers::Parser::LookupCreateStruct(std::__1::basic_string , std::__1::allocator > const&, bool, bool)', 'flatbuffers::IsVector(flatbuffers::BaseType)', 'std::__1::basic_string , std::__1::allocator >::operator=[abi:ne180100](std::__1::basic_string , std::__1::allocator >&&)', 'flatbuffers::CheckedError flatbuffers::(anonymous namespace)::atot (char const*, flatbuffers::Parser&, unsigned short*)', 'std::__1::basic_string , std::__1::allocator >::c_str[abi:ne180100]() const', 'flatbuffers::CheckedError::~CheckedError()', 'flatbuffers::Value::Value()', 'flatbuffers::IsScalar(flatbuffers::BaseType)', 'operator delete(void*)', 'std::__1::basic_string , std::__1::allocator > std::__1::operator+[abi:ne180100] , std::__1::allocator >(std::__1::basic_string , std::__1::allocator >&&, char const*)', 'flatbuffers::CheckedError::Check()', 'std::__1::basic_string , std::__1::allocator > flatbuffers::NumToString (int)', 'std::__1::basic_string , std::__1::allocator > std::__1::operator+ , std::__1::allocator >(char const*, std::__1::basic_string , std::__1::allocator > const&)', 'operator new(unsigned long)', 'flatbuffers::SymbolTable ::Add(std::__1::basic_string , std::__1::allocator > const&, flatbuffers::Value*)', 'flatbuffers::Parser::Expect(int)']

0 788 flatbuffers::Parser::ParseField(flatbuffers::StructDef&) call site: 00000 /src/flatbuffers/src/idl_parser.cpp:1237
0 91 1 :

['void flatbuffers::FlatBufferBuilderImpl ::FinishSizePrefixed (flatbuffers::Offset , char const*)']

0 350 flatbuffers::Parser::DoParseJson() call site: 00000 /src/flatbuffers/src/idl_parser.cpp:3819
0 82 5 :

['flatbuffers::Parser::SerializeStruct(flatbuffers::StructDef const&, flatbuffers::Value const&)', 'flatbuffers::FlatBufferBuilderImpl ::ClearOffsets()', 'flatbuffers::FlatBufferBuilderImpl ::GetSize() const', 'std::__1::basic_string , std::__1::allocator >::operator=[abi:ne180100](std::__1::basic_string , std::__1::allocator >&&)', 'std::__1::basic_string , std::__1::allocator > flatbuffers::NumToString (unsigned int)']

0 86 flatbuffers::Parser::ParseAnyValue(flatbuffers::Value&,flatbuffers::FieldDef*,unsignedlong,flatbuffers::StructDefconst*,unsignedlong,bool) call site: 00000 /src/flatbuffers/src/idl_parser.cpp:1388
0 66 3 :

['flatbuffers::Parser::Error(std::__1::basic_string , std::__1::allocator > const&)', 'std::__1::basic_string , std::__1::allocator >::~basic_string()', '_ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEEC2B8ne180100ILi0EEEPKc']

0 70 flatbuffers::Parser::ParseFlexBufferValue(flexbuffers::Builder*) call site: 00000 /src/flatbuffers/src/idl_parser.cpp:3426
0 66 3 :

['flatbuffers::Parser::Error(std::__1::basic_string , std::__1::allocator > const&)', 'std::__1::basic_string , std::__1::allocator >::~basic_string()', '_ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEEC2B8ne180100ILi0EEEPKc']

0 66 flatbuffers::Parser::DoParse(charconst*,charconst**,charconst*,charconst*) call site: 00000 /src/flatbuffers/src/idl_parser.cpp:3803
0 66 3 :

['flatbuffers::Parser::Error(std::__1::basic_string , std::__1::allocator > const&)', 'std::__1::basic_string , std::__1::allocator >::~basic_string()', '_ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEEC2B8ne180100ILi0EEEPKc']

0 66 flatbuffers::Parser::DoParseJson() call site: 00000 /src/flatbuffers/src/idl_parser.cpp:3814
0 66 3 :

['flatbuffers::Parser::Error(std::__1::basic_string , std::__1::allocator > const&)', 'std::__1::basic_string , std::__1::allocator >::~basic_string()', '_ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEEC2B8ne180100ILi0EEEPKc']

0 66 flatbuffers::CheckedErrorflatbuffers::Parser::ParseTableDelimiters (unsignedlong&,flatbuffers::StructDefconst*,flatbuffers::Parser::SkipAnyJsonValue()::$_0) call site: 00000 /src/flatbuffers/src/idl_parser.cpp:1486

Runtime coverage analysis

Covered functions
541
Functions that are reachable but not covered
152
Reachable functions
1223
Percentage of reachable functions covered
87.57%
NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.
Function name source code lines source lines hit percentage hit

Files reached

filename functions hit
/src/flatbuffers/tests/fuzzer/flatbuffers_parser_fuzzer.cc 1
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/idl.h 105
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/buffer.h 15
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/flatbuffer_builder.h 92
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/vector_downward.h 33
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/default_allocator.h 7
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/allocator.h 4
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/flexbuffers.h 50
/src/flatbuffers/src/idl_parser.cpp 176
/src/flatbuffers/src/util.cpp 18
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/util.h 43
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/base.h 35
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/hash.h 4
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/reflection.h 1
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/vector.h 11
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/table.h 4
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/string.h 1

Fuzzer: scalar_fuzzer

Call tree

The calltree shows the control flow of the fuzzer. This is overlaid with coverage information to display how much of the potential code a fuzzer can reach is in fact covered at runtime. In the following there is a link to a detailed calltree visualisation as well as a bitmap showing a high-level view of the calltree. For further information about these topics please see the glossary for full calltree and calltree overview

Full calltree

Call tree overview bitmap:

The distribution of callsites in terms of coloring is
Color Runtime hitcount Callsite count Percentage
red 0 2257 68.3%
gold [1:9] 0 0.0%
yellow [10:29] 0 0.0%
greenyellow [30:49] 0 0.0%
lawngreen 50+ 1043 31.6%
All colors 3300 100

Fuzz blockers

The followings are the branches where fuzzer fails to bypass.

Unique non-covered Complexity Unique Reachable Complexities Unique Reachable Functions All non-covered Complexity All Reachable Complexity Function Name Function Callsite Blocked Branch
9328 9328 1 :

['flatbuffers::Parser::ParseNestedFlatbuffer(flatbuffers::Value&, flatbuffers::FieldDef*, unsigned long, flatbuffers::StructDef const*)']

9332 9406 flatbuffers::Parser::ParseTable(flatbuffers::StructDefconst&,std::__1::basic_string ,std::__1::allocator >*,unsignedint*)::$_0::operator()(std::__1::basic_string ,std::__1::allocator >const&,unsignedlong&,flatbuffers::StructDefconst*)const call site: 00000 /src/flatbuffers/src/idl_parser.cpp:1528
850 969 10 :

['flexbuffers::Builder::Builder(unsigned long, flexbuffers::BuilderFlag)', 'flatbuffers::FlatBufferBuilderImpl ::ForceVectorAlignment(unsigned long, unsigned long, unsigned long)', 'flexbuffers::Builder::GetBuffer() const', 'flatbuffers::Parser::ParseFlexBufferValue(flexbuffers::Builder*)', 'flexbuffers::Builder::~Builder()', 'flatbuffers::Offset > flatbuffers::FlatBufferBuilderImpl ::CreateVector >(std::__1::vector > const&)', 'flexbuffers::Builder::GetSize() const', 'std::__1::basic_string , std::__1::allocator >::operator=[abi:ne180100](std::__1::basic_string , std::__1::allocator >&&)', 'flexbuffers::Builder::Finish()', 'std::__1::basic_string , std::__1::allocator > flatbuffers::NumToString (unsigned int)']

854 1047 flatbuffers::Parser::ParseTable(flatbuffers::StructDefconst&,std::__1::basic_string ,std::__1::allocator >*,unsignedint*)::$_0::operator()(std::__1::basic_string ,std::__1::allocator >const&,unsignedlong&,flatbuffers::StructDefconst*)const call site: 00000 /src/flatbuffers/src/idl_parser.cpp:1518
755 755 1 :

['flatbuffers::Parser::ParseFlexBuffer(char const*, char const*, flexbuffers::Builder*)']

755 755 flatbuffers::Parser::Parse(charconst*,charconst**,charconst*) call site: 00000 /src/flatbuffers/src/idl_parser.cpp:3469
140 140 1 :

['flatbuffers::Parser::ParseAlignAttribute(std::__1::basic_string , std::__1::allocator > const&, unsigned long, unsigned long*)']

140 1513 flatbuffers::Parser::ParseDecl(charconst*) call site: 00000 /src/flatbuffers/src/idl_parser.cpp:2772
45 45 2 :

['strlen', 'flatbuffers::FlatBufferBuilderImpl ::PushBytes(unsigned char const*, unsigned long)']

45 227 flatbuffers::FlatBufferBuilderImpl ::Finish(unsignedint,charconst*,bool) call site: 00000 /src/flatbuffers/tests/fuzzer/../../include/flatbuffers/flatbuffer_builder.h:1275
36 11674 21 :

['flatbuffers::PosixPath(char const*)', 'std::__1::basic_string , std::__1::allocator >::operator=[abi:ne180100](std::__1::basic_string , std::__1::allocator >&&)', 'std::__1::map , std::__1::allocator >, std::__1::less , std::__1::allocator , std::__1::allocator > > > >::end[abi:ne180100]()', 'flatbuffers::(anonymous namespace)::HashFile(char const*, char const*)', 'flatbuffers::Parser::DoParse(char const*, char const**, char const*, char const*)', 'std::__1::operator==[abi:ne180100](std::__1::__map_iterator , std::__1::allocator > >, std::__1::__tree_node , std::__1::allocator > >, void*>*, long> > const&, std::__1::__map_iterator , std::__1::allocator > >, std::__1::__tree_node , std::__1::allocator > >, void*>*, long> > const&)', 'std::__1::basic_string , std::__1::allocator >::clear[abi:ne180100]()', 'flatbuffers::FileExists(char const*)', 'std::__1::basic_string , std::__1::allocator >::basic_string[abi:ne180100]()', 'flatbuffers::LoadFile(char const*, bool, std::__1::basic_string , std::__1::allocator >*)', 'flatbuffers::StripFileName(std::__1::basic_string , std::__1::allocator > const&)', 'std::__1::set , std::__1::allocator >::insert[abi:ne180100](flatbuffers::IncludedFile const&)', 'bool std::__1::operator==[abi:ne180100] , std::__1::allocator >(std::__1::basic_string , std::__1::allocator > const&, char const*)', 'std::__1::map , std::__1::allocator >, std::__1::less , std::__1::allocator , std::__1::allocator > > > >::erase[abi:ne180100](unsigned long const&)', 'flatbuffers::IncludedFile::~IncludedFile()', 'flatbuffers::IncludedFile::IncludedFile()', 'std::__1::map , std::__1::allocator >, std::__1::set , std::__1::allocator >, std::__1::less , std::__1::allocator > >, std::__1::allocator , std::__1::allocator > const, std::__1::set , std::__1::allocator > > > >::operator[](std::__1::basic_string , std::__1::allocator >&&)', 'flatbuffers::ConCatPathFileName(std::__1::basic_string , std::__1::allocator > const&, std::__1::basic_string , std::__1::allocator > const&)', 'std::__1::map , std::__1::allocator >, std::__1::less , std::__1::allocator , std::__1::allocator > > > >::find[abi:ne180100](unsigned long const&)', 'std::__1::basic_string , std::__1::allocator >& std::__1::vector , std::__1::allocator >, std::__1::allocator , std::__1::allocator > > >::emplace_back , std::__1::allocator >&>(std::__1::basic_string , std::__1::allocator >&)', 'flatbuffers::Parser::MarkGenerated()']

15380 35736 flatbuffers::Parser::DoParse(charconst*,charconst**,charconst*,charconst*) call site: 00000 /src/flatbuffers/src/idl_parser.cpp:3687
32 32 2 :

['std::__1::basic_string , std::__1::allocator > std::__1::operator+[abi:ne180100] , std::__1::allocator >(std::__1::basic_string , std::__1::allocator >&&, std::__1::basic_string , std::__1::allocator >&&)', 'std::__1::basic_string , std::__1::allocator > flatbuffers::(anonymous namespace)::TypeToIntervalString ()']

32 98 flatbuffers::CheckedErrorflatbuffers::(anonymousnamespace)::atot (charconst*,flatbuffers::Parser&,float*) call site: 00000 /src/flatbuffers/src/idl_parser.cpp:117
32 32 2 :

['std::__1::basic_string , std::__1::allocator > std::__1::operator+[abi:ne180100] , std::__1::allocator >(std::__1::basic_string , std::__1::allocator >&&, std::__1::basic_string , std::__1::allocator >&&)', 'std::__1::basic_string , std::__1::allocator > flatbuffers::(anonymous namespace)::TypeToIntervalString ()']

32 98 flatbuffers::CheckedErrorflatbuffers::(anonymousnamespace)::atot (charconst*,flatbuffers::Parser&,double*) call site: 00000 /src/flatbuffers/src/idl_parser.cpp:117
24 24 4 :

['std::__1::optional ::operator*[abi:ne180100]() &', 'std::__1::optional ::operator bool[abi:ne180100]() const', 'std::__1::basic_string , std::__1::allocator >::operator+=[abi:ne180100](char const*)', 'std::__1::optional flatbuffers::Table::GetOptional (unsigned short) const']

24 69 voidflatbuffers::JsonPrinter::GenField (flatbuffers::FieldDefconst&,flatbuffers::Tableconst*,bool,int) call site: 00000 /src/flatbuffers/src/idl_gen_text.cpp:263
24 24 4 :

['std::__1::optional ::operator bool[abi:ne180100]() const', 'std::__1::optional ::operator*[abi:ne180100]() &', 'std::__1::basic_string , std::__1::allocator >::operator+=[abi:ne180100](char const*)', 'std::__1::optional flatbuffers::Table::GetOptional (unsigned short) const']

24 69 voidflatbuffers::JsonPrinter::GenField (flatbuffers::FieldDefconst&,flatbuffers::Tableconst*,bool,int) call site: 00000 /src/flatbuffers/src/idl_gen_text.cpp:263
24 24 4 :

['std::__1::optional ::operator*[abi:ne180100]() &', 'std::__1::optional ::operator bool[abi:ne180100]() const', 'std::__1::optional flatbuffers::Table::GetOptional (unsigned short) const', 'std::__1::basic_string , std::__1::allocator >::operator+=[abi:ne180100](char const*)']

24 59 voidflatbuffers::JsonPrinter::GenField (flatbuffers::FieldDefconst&,flatbuffers::Tableconst*,bool,int) call site: 00000 /src/flatbuffers/src/idl_gen_text.cpp:263
24 24 4 :

['std::__1::optional ::operator bool[abi:ne180100]() const', 'std::__1::optional flatbuffers::Table::GetOptional (unsigned short) const', 'std::__1::basic_string , std::__1::allocator >::operator+=[abi:ne180100](char const*)', 'std::__1::optional ::operator*[abi:ne180100]() &']

24 59 voidflatbuffers::JsonPrinter::GenField (flatbuffers::FieldDefconst&,flatbuffers::Tableconst*,bool,int) call site: 00000 /src/flatbuffers/src/idl_gen_text.cpp:263

Runtime coverage analysis

Covered functions
385
Functions that are reachable but not covered
1048
Reachable functions
1922
Percentage of reachable functions covered
45.47%
NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.
Function name source code lines source lines hit percentage hit

Files reached

filename functions hit
/src/flatbuffers/tests/fuzzer/flatbuffers_scalar_fuzzer.cc 18
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/idl.h 105
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/buffer.h 29
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/flatbuffer_builder.h 92
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/vector_downward.h 33
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/default_allocator.h 7
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/allocator.h 4
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/flexbuffers.h 121
/src/flatbuffers/src/idl_parser.cpp 177
/src/flatbuffers/src/util.cpp 18
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/util.h 47
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/base.h 35
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/hash.h 4
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/reflection.h 1
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/vector.h 57
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/table.h 30
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/string.h 2
/src/flatbuffers/tests/fuzzer/../../tests/test_assert.h 2
/src/flatbuffers/tests/test_assert.cpp 2
/src/flatbuffers/tests/fuzzer/test_init.h 1
/src/flatbuffers/src/idl_gen_text.cpp 89
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/struct.h 11
/usr/local/bin/../include/c++/v1/optional 20
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/array.h 44

Fuzzer: monster_fuzzer

Call tree

The calltree shows the control flow of the fuzzer. This is overlaid with coverage information to display how much of the potential code a fuzzer can reach is in fact covered at runtime. In the following there is a link to a detailed calltree visualisation as well as a bitmap showing a high-level view of the calltree. For further information about these topics please see the glossary for full calltree and calltree overview

Full calltree

Call tree overview bitmap:

The distribution of callsites in terms of coloring is
Color Runtime hitcount Callsite count Percentage
red 0 1683 46.7%
gold [1:9] 55 1.52%
yellow [10:29] 16 0.44%
greenyellow [30:49] 9 0.24%
lawngreen 50+ 1838 51.0%
All colors 3601 100

Fuzz blockers

The followings are the branches where fuzzer fails to bypass.

Unique non-covered Complexity Unique Reachable Complexities Unique Reachable Functions All non-covered Complexity All Reachable Complexity Function Name Function Callsite Blocked Branch
140 199 2 :

['flatbuffers::FlatBufferBuilderImpl ::ForceVectorAlignment(unsigned long, unsigned long, unsigned long)', 'flatbuffers::Parser::ParseAlignAttribute(std::__1::basic_string , std::__1::allocator > const&, unsigned long, unsigned long*)']

288 5868 flatbuffers::Parser::ParseVector(flatbuffers::Typeconst&,unsignedint*,flatbuffers::FieldDef*,unsignedlong) call site: 00000 /src/flatbuffers/src/idl_parser.cpp:1718
137 2180 23 :

['void flatbuffers::(anonymous namespace)::SingleValueRepack (flatbuffers::Value&, long)', 'void flatbuffers::(anonymous namespace)::SingleValueRepack (flatbuffers::Value&, unsigned long)', 'flatbuffers::CheckedError flatbuffers::(anonymous namespace)::atot (char const*, flatbuffers::Parser&, short*)', 'flatbuffers::(anonymous namespace)::SingleValueRepack(flatbuffers::Value&, float)', 'flatbuffers::(anonymous namespace)::SingleValueRepack(flatbuffers::Value&, double)', 'void flatbuffers::(anonymous namespace)::SingleValueRepack (flatbuffers::Value&, unsigned int)', 'flatbuffers::CheckedError flatbuffers::(anonymous namespace)::atot (char const*, flatbuffers::Parser&, unsigned int*)', 'flatbuffers::CheckedError flatbuffers::(anonymous namespace)::atot (char const*, flatbuffers::Parser&, float*)', 'flatbuffers::CheckedError flatbuffers::(anonymous namespace)::atot (char const*, flatbuffers::Parser&, long*)', 'void flatbuffers::(anonymous namespace)::SingleValueRepack (flatbuffers::Value&, short)', 'void flatbuffers::(anonymous namespace)::SingleValueRepack (flatbuffers::Value&, unsigned short)', 'flatbuffers::CheckedError flatbuffers::(anonymous namespace)::atot (char const*, flatbuffers::Parser&, int*)', 'flatbuffers::CheckedError flatbuffers::(anonymous namespace)::atot (char const*, flatbuffers::Parser&, unsigned short*)', 'std::__1::basic_string , std::__1::allocator >::c_str[abi:ne180100]() const', 'flatbuffers::CheckedError::~CheckedError()', 'void flatbuffers::(anonymous namespace)::SingleValueRepack (flatbuffers::Value&, unsigned char)', 'flatbuffers::CheckedError flatbuffers::(anonymous namespace)::atot (char const*, flatbuffers::Parser&, signed char*)', 'flatbuffers::CheckedError flatbuffers::(anonymous namespace)::atot (char const*, flatbuffers::Parser&, unsigned char*)', 'void flatbuffers::(anonymous namespace)::SingleValueRepack (flatbuffers::Value&, signed char)', 'flatbuffers::CheckedError::Check()', 'void flatbuffers::(anonymous namespace)::SingleValueRepack (flatbuffers::Value&, int)', 'flatbuffers::CheckedError flatbuffers::(anonymous namespace)::atot (char const*, flatbuffers::Parser&, double*)', 'flatbuffers::CheckedError flatbuffers::(anonymous namespace)::atot (char const*, flatbuffers::Parser&, unsigned long*)']

137 2184 flatbuffers::Parser::ParseSingleValue(std::__1::basic_string ,std::__1::allocator >const*,flatbuffers::Value&,bool) call site: 00000 /src/flatbuffers/src/idl_parser.cpp:2220
92 92 2 :

['flatbuffers::FlatBufferBuilderImpl ::CreateSharedString(std::__1::basic_string_view >)', 'std::__1::basic_string , std::__1::allocator >::operator std::__1::basic_string_view >[abi:ne180100]() const']

92 102 flatbuffers::Parser::ParseString(flatbuffers::Value&,bool) call site: 00000 /src/flatbuffers/src/idl_parser.cpp:1293
66 66 1 :

['unsigned int flatbuffers::FlatBufferBuilderImpl ::EndVector (unsigned long)']

66 629 flatbuffers::Parser::ParseVector(flatbuffers::Typeconst&,unsignedint*,flatbuffers::FieldDef*,unsignedlong) call site: 00000 /src/flatbuffers/src/idl_parser.cpp:1754
47 304 8 :

['flexbuffers::Reference::Indirect() const', 'flexbuffers::String::c_str() const', 'flexbuffers::Sized::size() const', 'flexbuffers::ReadInt64(unsigned char const*, unsigned char)', 'flexbuffers::Reference::AsString() const', 'flexbuffers::ReadUInt64(unsigned char const*, unsigned char)', 'bool flatbuffers::StringToNumber (char const*, double*)', 'flexbuffers::Reference::AsVector() const']

47 327 flexbuffers::Reference::AsDouble()const call site: 00000 /src/flatbuffers/tests/fuzzer/../../include/flatbuffers/flexbuffers.h:507
47 298 8 :

['flexbuffers::Reference::Indirect() const', 'flexbuffers::String::c_str() const', 'flexbuffers::Sized::size() const', 'flatbuffers::StringToInt(char const*, int)', 'flexbuffers::Reference::AsString() const', 'flexbuffers::ReadDouble(unsigned char const*, unsigned char)', 'flexbuffers::ReadUInt64(unsigned char const*, unsigned char)', 'flexbuffers::Reference::AsVector() const']

47 344 flexbuffers::Reference::AsInt64()const call site: 00000 /src/flatbuffers/tests/fuzzer/../../include/flatbuffers/flexbuffers.h:451
36 11674 21 :

['flatbuffers::PosixPath(char const*)', 'std::__1::basic_string , std::__1::allocator >::operator=[abi:ne180100](std::__1::basic_string , std::__1::allocator >&&)', 'std::__1::map , std::__1::allocator >, std::__1::less , std::__1::allocator , std::__1::allocator > > > >::end[abi:ne180100]()', 'flatbuffers::(anonymous namespace)::HashFile(char const*, char const*)', 'flatbuffers::Parser::DoParse(char const*, char const**, char const*, char const*)', 'std::__1::operator==[abi:ne180100](std::__1::__map_iterator , std::__1::allocator > >, std::__1::__tree_node , std::__1::allocator > >, void*>*, long> > const&, std::__1::__map_iterator , std::__1::allocator > >, std::__1::__tree_node , std::__1::allocator > >, void*>*, long> > const&)', 'std::__1::basic_string , std::__1::allocator >::clear[abi:ne180100]()', 'flatbuffers::FileExists(char const*)', 'std::__1::basic_string , std::__1::allocator >::basic_string[abi:ne180100]()', 'flatbuffers::LoadFile(char const*, bool, std::__1::basic_string , std::__1::allocator >*)', 'flatbuffers::StripFileName(std::__1::basic_string , std::__1::allocator > const&)', 'std::__1::set , std::__1::allocator >::insert[abi:ne180100](flatbuffers::IncludedFile const&)', 'bool std::__1::operator==[abi:ne180100] , std::__1::allocator >(std::__1::basic_string , std::__1::allocator > const&, char const*)', 'std::__1::map , std::__1::allocator >, std::__1::less , std::__1::allocator , std::__1::allocator > > > >::erase[abi:ne180100](unsigned long const&)', 'flatbuffers::IncludedFile::~IncludedFile()', 'flatbuffers::IncludedFile::IncludedFile()', 'std::__1::map , std::__1::allocator >, std::__1::set , std::__1::allocator >, std::__1::less , std::__1::allocator > >, std::__1::allocator , std::__1::allocator > const, std::__1::set , std::__1::allocator > > > >::operator[](std::__1::basic_string , std::__1::allocator >&&)', 'flatbuffers::ConCatPathFileName(std::__1::basic_string , std::__1::allocator > const&, std::__1::basic_string , std::__1::allocator > const&)', 'std::__1::map , std::__1::allocator >, std::__1::less , std::__1::allocator , std::__1::allocator > > > >::find[abi:ne180100](unsigned long const&)', 'std::__1::basic_string , std::__1::allocator >& std::__1::vector , std::__1::allocator >, std::__1::allocator , std::__1::allocator > > >::emplace_back , std::__1::allocator >&>(std::__1::basic_string , std::__1::allocator >&)', 'flatbuffers::Parser::MarkGenerated()']

10204 35736 flatbuffers::Parser::DoParse(charconst*,charconst**,charconst*,charconst*) call site: 00000 /src/flatbuffers/src/idl_parser.cpp:3687
35 35 1 :

['flexbuffers::Map::EmptyMap()']

35 35 flexbuffers::Reference::AsMap()const call site: 00000 /src/flatbuffers/tests/fuzzer/../../include/flatbuffers/flexbuffers.h:709
33 33 1 :

['flexbuffers::Vector::EmptyVector()']

33 33 flexbuffers::Reference::AsVector()const call site: 00000 /src/flatbuffers/tests/fuzzer/../../include/flatbuffers/flexbuffers.h:672
32 32 2 :

['std::__1::basic_string , std::__1::allocator > std::__1::operator+[abi:ne180100] , std::__1::allocator >(std::__1::basic_string , std::__1::allocator >&&, std::__1::basic_string , std::__1::allocator >&&)', 'std::__1::basic_string , std::__1::allocator > flatbuffers::(anonymous namespace)::TypeToIntervalString ()']

32 98 flatbuffers::CheckedErrorflatbuffers::(anonymousnamespace)::atot (charconst*,flatbuffers::Parser&,float*) call site: 00000 /src/flatbuffers/src/idl_parser.cpp:117
32 32 2 :

['std::__1::basic_string , std::__1::allocator > std::__1::operator+[abi:ne180100] , std::__1::allocator >(std::__1::basic_string , std::__1::allocator >&&, std::__1::basic_string , std::__1::allocator >&&)', 'std::__1::basic_string , std::__1::allocator > flatbuffers::(anonymous namespace)::TypeToIntervalString ()']

32 98 flatbuffers::CheckedErrorflatbuffers::(anonymousnamespace)::atot (charconst*,flatbuffers::Parser&,double*) call site: 00000 /src/flatbuffers/src/idl_parser.cpp:117
24 24 4 :

['std::__1::optional ::operator*[abi:ne180100]() &', 'std::__1::optional ::operator bool[abi:ne180100]() const', 'std::__1::basic_string , std::__1::allocator >::operator+=[abi:ne180100](char const*)', 'std::__1::optional flatbuffers::Table::GetOptional (unsigned short) const']

24 69 voidflatbuffers::JsonPrinter::GenField (flatbuffers::FieldDefconst&,flatbuffers::Tableconst*,bool,int) call site: 00000 /src/flatbuffers/src/idl_gen_text.cpp:263

Runtime coverage analysis

Covered functions
967
Functions that are reachable but not covered
561
Reachable functions
2227
Percentage of reachable functions covered
74.81%
NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.
Function name source code lines source lines hit percentage hit

Files reached

filename functions hit
/src/flatbuffers/tests/fuzzer/flatbuffers_monster_fuzzer.cc 2
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/idl.h 105
/src/flatbuffers/src/idl_parser.cpp 177
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/flatbuffer_builder.h 92
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/vector_downward.h 33
/src/flatbuffers/src/util.cpp 18
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/util.h 47
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/flexbuffers.h 139
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/base.h 35
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/default_allocator.h 7
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/allocator.h 4
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/buffer.h 35
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/reflection.h 1
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/vector.h 69
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/hash.h 4
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/table.h 73
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/string.h 2
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/verifier.h 55
/src/flatbuffers/tests/fuzzer/../../tests/cpp17/generated_cpp17/monster_test_generated.h 42
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/flex_flat_util.h 1
/src/flatbuffers/tests/fuzzer/../../tests/test_assert.h 3
/src/flatbuffers/tests/test_assert.cpp 2
/src/flatbuffers/src/idl_gen_text.cpp 89
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/struct.h 11
/usr/local/bin/../include/c++/v1/optional 20
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/array.h 44

Analyses and suggestions

Optimal target analysis

Remaining optimal interesting functions

The following table shows a list of functions that are optimal targets. Optimal targets are identified by finding the functions that in combination, yield a high code coverage.

Func name Functions filename Arg count Args Function depth hitcount instr count bb count cyclomatic complexity Reachable functions Incoming references total cyclomatic complexity Unreached complexity
flatbuffers::Parser::Serialize() /src/flatbuffers/src/idl_parser.cpp 1 ['N/A'] 18 0 657 90 64 729 0 1113 693
flatbuffers::Parser::Deserialize(unsignedcharconst*,unsignedlong) /src/flatbuffers/src/idl_parser.cpp 3 ['N/A', 'N/A', 'size_t'] 12 0 93 15 6 513 0 894 377
flatbuffers::CopyTable(flatbuffers::FlatBufferBuilderImpl &,reflection::Schemaconst&,reflection::Objectconst&,flatbuffers::Tableconst&,bool) /src/flatbuffers/src/reflection.cpp 5 ['N/A', 'N/A', 'N/A', 'N/A', 'bool'] 14 0 881 170 95 366 1 629 302
flatbuffers::(anonymousnamespace)::VerifyObject(flatbuffers::VerifierTemplate &,reflection::Schemaconst&,reflection::Objectconst&,flatbuffers::Tableconst*,bool) /src/flatbuffers/src/reflection.cpp 5 ['N/A', 'N/A', 'N/A', 'N/A', 'bool'] 13 0 372 67 19 304 5 472 191
flatbuffers::Parser::ConformTo(flatbuffers::Parserconst&) /src/flatbuffers/src/idl_parser.cpp 3 ['N/A', 'N/A', 'N/A'] 2 0 757 129 114 22 0 179 129
flatbuffers::GetAnyValueS(reflection::BaseType,unsignedcharconst*,reflection::Schemaconst*,int) /src/flatbuffers/src/reflection.cpp 5 ['N/A', 'int', 'N/A', 'N/A', 'int'] 9 0 318 63 46 171 2 337 99
flatbuffers::BinaryAnnotator::BuildStruct(unsignedlong,std::__1::vector >&,std::__1::basic_string ,std::__1::allocator >,reflection::Objectconst*)::$_0::operator()(reflection::Fieldconst*)const /src/flatbuffers/src/binary_annotator.cpp 2 ['N/A', 'N/A'] 9 0 910 142 91 134 0 285 91

Implementing fuzzers that target the above functions will improve reachability such that it becomes:

Functions statically reachable by fuzzers
92.0%
1846 / 2003
Cyclomatic complexity statically reachable by fuzzers
95.0%
14619 / 15379

All functions overview

If you implement fuzzers for these functions, the status of all functions in the project will be:

Func name Functions filename Args Function call depth Reached by Fuzzers Runtime reached by Fuzzers Combined reached by Fuzzers Fuzzers runtime hit Func lines hit % I Count BB Count Cyclomatic complexity Functions reached Reached by functions Accumulated cyclomatic complexity Undiscovered complexity

Fuzz engine guidance

This sections provides heuristics that can be used as input to a fuzz engine when running a given fuzz target. The current focus is on providing input that is usable by libFuzzer.

/src/flatbuffers/tests/fuzzer/flexbuffers_verifier_fuzzer.cc

Dictionary

Use this with the libFuzzer -dict=DICT.file flag


Fuzzer function priority

Use one of these functions as input to libfuzzer with flag: -focus_function name 

-focus_function=['flexbuffers::Vector::operator[](unsigned long) const']

/src/flatbuffers/tests/fuzzer/flatbuffers_verifier_fuzzer.cc

Dictionary

Use this with the libFuzzer -dict=DICT.file flag


Fuzzer function priority

Use one of these functions as input to libfuzzer with flag: -focus_function name 

-focus_function=['flexbuffers::VerifyBuffer(unsigned char const*, unsigned long, std::__1::vector >*)', 'flexbuffers::Vector::operator[](unsigned long) const']

/src/flatbuffers/tests/fuzzer/flatbuffers_64bit_fuzzer.cc

Dictionary

Use this with the libFuzzer -dict=DICT.file flag


Fuzzer function priority

Use one of these functions as input to libfuzzer with flag: -focus_function name 

-focus_function=['flatbuffers::AccessBuffer(unsigned char const*, unsigned long, bool)', 'bool flatbuffers::VerifierTemplate::VerifyBufferFromStart(char const*, unsigned long)']

/src/flatbuffers/tests/fuzzer/flatbuffers_annotator_fuzzer.cc

Dictionary

Use this with the libFuzzer -dict=DICT.file flag


Fuzzer function priority

Use one of these functions as input to libfuzzer with flag: -focus_function name 

-focus_function=['flatbuffers::Vector, unsigned int>::Get(unsigned int) const', 'flatbuffers::Vector, unsigned int>::Get(unsigned int) const', 'flatbuffers::Vector, unsigned int>::Get(unsigned int) const', 'flatbuffers::Vector, unsigned int>::Get(unsigned int) const', 'flatbuffers::BinaryAnnotator::BuildHeader(unsigned long)', 'flatbuffers::BinaryAnnotator::GetOrBuildVTable(unsigned long, reflection::Object const*, unsigned long)', 'std::__1::optional flatbuffers::BinaryAnnotator::ReadScalar(unsigned long) const', 'flatbuffers::BinaryAnnotator::IsValidRead(unsigned long, unsigned long) const', 'flatbuffers::BinaryAnnotator::GetOrBuildVTable(unsigned long, reflection::Object const*, unsigned long)', 'flatbuffers::BinaryAnnotator::BuildVector(unsigned long, reflection::Object const*, reflection::Field const*, unsigned long, std::__1::map, std::__1::allocator > >)']

/src/flatbuffers/tests/fuzzer/flatbuffers_parser_fuzzer.cc

Dictionary

Use this with the libFuzzer -dict=DICT.file flag


Fuzzer function priority

Use one of these functions as input to libfuzzer with flag: -focus_function name 

-focus_function=['flatbuffers::EnumValBuilder::~EnumValBuilder()', 'flatbuffers::Parser::AddField(flatbuffers::StructDef&, std::__1::basic_string, std::__1::allocator > const&, flatbuffers::Type const&, flatbuffers::FieldDef**)', 'flatbuffers::Parser::ParseEnum(bool, flatbuffers::EnumDef**, char const*)', 'flatbuffers::Parser::StartStruct(std::__1::basic_string, std::__1::allocator > const&, flatbuffers::StructDef**)', 'flatbuffers::Parser::CheckPrivateLeak()', 'flatbuffers::Parser::ParseNamespace()', 'flatbuffers::Parser::Parse(char const*, char const**, char const*)', 'flatbuffers::Parser::ParseVector(flatbuffers::Type const&, unsigned int*, flatbuffers::FieldDef*, unsigned long)', 'flatbuffers::Parser::DoParse(char const*, char const**, char const*, char const*)', 'flatbuffers::Parser::ParseEnum(bool, flatbuffers::EnumDef**, char const*)']

/src/flatbuffers/tests/fuzzer/flatbuffers_scalar_fuzzer.cc

Dictionary

Use this with the libFuzzer -dict=DICT.file flag


Fuzzer function priority

Use one of these functions as input to libfuzzer with flag: -focus_function name 

-focus_function=['flatbuffers::Parser::ParseMetaData(flatbuffers::SymbolTable*)', 'flatbuffers::JsonPrinter::GenStruct(flatbuffers::StructDef const&, flatbuffers::Table const*, int)', 'void flatbuffers::JsonPrinter::GenField(flatbuffers::FieldDef const&, flatbuffers::Table const*, bool, int)', 'flatbuffers::Parser::AddField(flatbuffers::StructDef&, std::__1::basic_string, std::__1::allocator > const&, flatbuffers::Type const&, flatbuffers::FieldDef**)', 'flatbuffers::Parser::ParseTable(flatbuffers::StructDef const&, std::__1::basic_string, std::__1::allocator >*, unsigned int*)', 'flatbuffers::CheckedError::CheckedError(flatbuffers::CheckedError const&)', 'flatbuffers::Parser::ParseAnyValue(flatbuffers::Value&, flatbuffers::FieldDef*, unsigned long, flatbuffers::StructDef const*, unsigned long, bool)', 'flatbuffers::Parser::DoParse(char const*, char const**, char const*, char const*)', 'std::__1::enable_if::type flatbuffers::FlatBufferBuilderImpl::GetSizeRelative32BitRegion() const', 'flatbuffers::Parser::StartStruct(std::__1::basic_string, std::__1::allocator > const&, flatbuffers::StructDef**)']

/src/flatbuffers/tests/fuzzer/flatbuffers_monster_fuzzer.cc

Dictionary

Use this with the libFuzzer -dict=DICT.file flag


Fuzzer function priority

Use one of these functions as input to libfuzzer with flag: -focus_function name 

-focus_function=['flatbuffers::EnumDef::EnumDef()', 'flatbuffers::Parser::ParseDecl(char const*)', 'flatbuffers::FieldDef::FieldDef()', 'flatbuffers::Vector, unsigned int>::Get(unsigned int) const', 'flatbuffers::Parser::DoParse(char const*, char const**, char const*, char const*)', 'flexbuffers::Reference::ToString(bool, bool, std::__1::basic_string, std::__1::allocator >&, bool, int, char const*, bool) const', 'flatbuffers::StructDef* flatbuffers::(anonymous namespace)::LookupTableByName(flatbuffers::SymbolTable const&, std::__1::basic_string, std::__1::allocator > const&, flatbuffers::Namespace const&, unsigned long)', 'flatbuffers::Parser::ParseFunction(std::__1::basic_string, std::__1::allocator > const*, flatbuffers::Value&)', 'flatbuffers::Parser::DoParse(char const*, char const**, char const*, char const*)', 'flatbuffers::Parser::ParseSingleValue(std::__1::basic_string, std::__1::allocator > const*, flatbuffers::Value&, bool)']

Runtime coverage analysis

This section shows analysis of runtime coverage data.

For futher technical details on how this section is generated, please see the Glossary .

Complex functions with low coverage

Func name Function total lines Lines covered at runtime percentage covered Reached by fuzzers
flatbuffers::BinaryAnnotator::BuildHeader(unsignedlong) 58 31 53.44% ['annotator_fuzzer']
flatbuffers::Parser::ParseRoot(charconst*,charconst**,charconst*) 74 33 44.59% ['parser_fuzzer', 'monster_fuzzer', 'scalar_fuzzer']
flatbuffers::Parser::CheckPrivateLeak() 34 2 5.882% ['parser_fuzzer', 'monster_fuzzer', 'scalar_fuzzer']
voidflatbuffers::JsonPrinter::PrintScalar (signedchar,flatbuffers::Typeconst&,int) 36 14 38.88% ['monster_fuzzer', 'scalar_fuzzer']
voidflatbuffers::JsonPrinter::PrintScalar (short,flatbuffers::Typeconst&,int) 36 6 16.66% ['monster_fuzzer', 'scalar_fuzzer']
voidflatbuffers::JsonPrinter::PrintScalar (unsignedshort,flatbuffers::Typeconst&,int) 36 6 16.66% ['monster_fuzzer', 'scalar_fuzzer']
voidflatbuffers::JsonPrinter::PrintScalar (int,flatbuffers::Typeconst&,int) 36 6 16.66% ['monster_fuzzer', 'scalar_fuzzer']
voidflatbuffers::JsonPrinter::PrintScalar (unsignedint,flatbuffers::Typeconst&,int) 36 6 16.66% ['monster_fuzzer', 'scalar_fuzzer']
voidflatbuffers::JsonPrinter::PrintScalar (long,flatbuffers::Typeconst&,int) 36 6 16.66% ['monster_fuzzer', 'scalar_fuzzer']
voidflatbuffers::JsonPrinter::PrintScalar (float,flatbuffers::Typeconst&,int) 36 6 16.66% ['monster_fuzzer', 'scalar_fuzzer']
voidflatbuffers::JsonPrinter::PrintScalar (double,flatbuffers::Typeconst&,int) 36 6 16.66% ['monster_fuzzer', 'scalar_fuzzer']
flatbuffers::JsonPrinter::PrintOffset(voidconst*,flatbuffers::Typeconst&,int,unsignedcharconst*,int) 57 30 52.63% ['monster_fuzzer', 'scalar_fuzzer']

Files and Directories in report

This section shows which files and directories are considered in this report. The main reason for showing this is fuzz introspector may include more code in the reasoning than is desired. This section helps identify if too many files/directories are included, e.g. third party code, which may be irrelevant for the threat model. In the event too much is included, fuzz introspector supports a configuration file that can exclude data from the report. See the following link for more information on how to create a config file: link

Files in report

Source file Reached by Covered by
[] []
/src/flatbuffers/tests/fuzzer/flatbuffers_verifier_fuzzer.cc ['verifier_fuzzer'] ['verifier_fuzzer']
/src/flatbuffers/tests/test_assert.cpp ['64bit_fuzzer', 'scalar_fuzzer', 'monster_fuzzer'] ['64bit_fuzzer', 'scalar_fuzzer', 'monster_fuzzer']
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/string.h ['64bit_fuzzer', 'annotator_fuzzer', 'parser_fuzzer', 'scalar_fuzzer', 'monster_fuzzer'] []
/src/flatbuffers/tests/fuzzer/test_init.h ['scalar_fuzzer'] ['scalar_fuzzer']
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/buffer.h ['verifier_fuzzer', '64bit_fuzzer', 'annotator_fuzzer', 'parser_fuzzer', 'scalar_fuzzer', 'monster_fuzzer'] []
/src/flatbuffers/tests/fuzzer/../../tests/64bit/test_64bit_generated.h ['64bit_fuzzer'] []
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/vector.h ['verifier_fuzzer', '64bit_fuzzer', 'annotator_fuzzer', 'parser_fuzzer', 'scalar_fuzzer', 'monster_fuzzer'] []
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/reflection.h ['annotator_fuzzer', 'parser_fuzzer', 'scalar_fuzzer', 'monster_fuzzer'] []
/src/flatbuffers/tests/fuzzer/flatbuffers_parser_fuzzer.cc ['parser_fuzzer'] ['parser_fuzzer']
/usr/local/bin/../include/c++/v1/__exception/exception.h [] []
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/idl.h ['parser_fuzzer', 'scalar_fuzzer', 'monster_fuzzer'] []
/src/flatbuffers/tests/fuzzer/../../src/binary_annotator.h ['annotator_fuzzer'] ['annotator_fuzzer']
/src/flatbuffers/tests/fuzzer/flexbuffers_verifier_fuzzer.cc ['flexverifier_fuzzer'] ['flexverifier_fuzzer']
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/flatbuffer_builder.h ['parser_fuzzer', 'scalar_fuzzer', 'monster_fuzzer'] []
/src/flatbuffers/tests/fuzzer/../../tests/cpp17/generated_cpp17/monster_test_generated.h ['verifier_fuzzer', 'monster_fuzzer'] []
/usr/local/bin/../include/c++/v1/stdexcept [] []
/src/flatbuffers/src/binary_annotator.cpp ['annotator_fuzzer'] ['annotator_fuzzer']
/usr/local/bin/../include/c++/v1/sstream [] []
/src/flatbuffers/tests/fuzzer/flatbuffers_annotator_fuzzer.cc ['annotator_fuzzer'] ['annotator_fuzzer']
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/hash.h ['parser_fuzzer', 'scalar_fuzzer', 'monster_fuzzer'] []
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/table.h ['verifier_fuzzer', '64bit_fuzzer', 'annotator_fuzzer', 'parser_fuzzer', 'scalar_fuzzer', 'monster_fuzzer'] []
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/code_generator.h [] []
/usr/local/bin/../include/c++/v1/string [] []
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/flex_flat_util.h ['verifier_fuzzer', 'monster_fuzzer'] []
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/array.h ['scalar_fuzzer', 'monster_fuzzer'] []
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/default_allocator.h ['parser_fuzzer', 'scalar_fuzzer', 'monster_fuzzer'] []
/src/flatbuffers/src/idl_parser.cpp ['parser_fuzzer', 'scalar_fuzzer', 'monster_fuzzer'] ['parser_fuzzer', 'scalar_fuzzer', 'monster_fuzzer']
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/base.h ['flexverifier_fuzzer', 'verifier_fuzzer', '64bit_fuzzer', 'annotator_fuzzer', 'parser_fuzzer', 'scalar_fuzzer', 'monster_fuzzer'] []
/src/flatbuffers/tests/fuzzer/flatbuffers_scalar_fuzzer.cc ['scalar_fuzzer'] ['scalar_fuzzer']
/src/flatbuffers/src/idl_gen_text.cpp ['scalar_fuzzer', 'monster_fuzzer'] ['scalar_fuzzer', 'monster_fuzzer']
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/util.h ['64bit_fuzzer', 'annotator_fuzzer', 'parser_fuzzer', 'scalar_fuzzer', 'monster_fuzzer'] []
/src/flatbuffers/src/util.cpp ['parser_fuzzer', 'scalar_fuzzer', 'monster_fuzzer'] ['parser_fuzzer', 'scalar_fuzzer', 'monster_fuzzer']
/src/flatbuffers/tests/fuzzer/../../tests/64bit/test_64bit_bfbs_generated.h [] []
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/struct.h ['scalar_fuzzer', 'monster_fuzzer'] []
/src/flatbuffers/tests/fuzzer/flatbuffers_64bit_fuzzer.cc ['64bit_fuzzer'] ['64bit_fuzzer']
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/allocator.h ['parser_fuzzer', 'scalar_fuzzer', 'monster_fuzzer'] []
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/verifier.h ['verifier_fuzzer', '64bit_fuzzer', 'annotator_fuzzer', 'monster_fuzzer'] []
/src/flatbuffers/tests/fuzzer/../../tests/test_assert.h ['64bit_fuzzer', 'scalar_fuzzer', 'monster_fuzzer'] []
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/flexbuffers.h ['flexverifier_fuzzer', 'verifier_fuzzer', 'parser_fuzzer', 'scalar_fuzzer', 'monster_fuzzer'] []
/src/flatbuffers/tests/fuzzer/flatbuffers_monster_fuzzer.cc ['monster_fuzzer'] ['monster_fuzzer']
/src/flatbuffers/src/binary_annotator.h ['annotator_fuzzer'] ['annotator_fuzzer']
/src/flatbuffers/src/reflection.cpp ['annotator_fuzzer'] ['annotator_fuzzer']
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/vector_downward.h ['parser_fuzzer', 'scalar_fuzzer', 'monster_fuzzer'] []
/usr/local/bin/../include/c++/v1/optional ['annotator_fuzzer', 'scalar_fuzzer', 'monster_fuzzer'] []
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/reflection_generated.h ['annotator_fuzzer'] []

Directories in report

Directory
/src/flatbuffers/tests/fuzzer/
/src/flatbuffers/tests/
/src/flatbuffers/tests/fuzzer/../../tests/
/src/flatbuffers/tests/fuzzer/../../tests/cpp17/generated_cpp17/
/src/flatbuffers/tests/fuzzer/../../tests/64bit/
/src/flatbuffers/tests/fuzzer/../../src/
/usr/local/bin/../include/c++/v1/__exception/
/src/flatbuffers/src/
/src/flatbuffers/tests/fuzzer/../../include/flatbuffers/
/usr/local/bin/../include/c++/v1/

Metadata section

This sections shows the raw data that is used to produce this report. This is mainly used for further processing and developer debugging.

Fuzzer Calltree file Program data file Coverage file
flexverifier_fuzzer fuzzerLogFile-0-8V1NCLoRYp.data fuzzerLogFile-0-8V1NCLoRYp.data.yaml flexverifier_fuzzer.covreport
verifier_fuzzer fuzzerLogFile-0-G1O4kFdzHk.data fuzzerLogFile-0-G1O4kFdzHk.data.yaml verifier_fuzzer.covreport
64bit_fuzzer fuzzerLogFile-0-hBgUmB4aZr.data fuzzerLogFile-0-hBgUmB4aZr.data.yaml 64bit_fuzzer.covreport
annotator_fuzzer fuzzerLogFile-0-5Qv5xDUrAt.data fuzzerLogFile-0-5Qv5xDUrAt.data.yaml annotator_fuzzer.covreport
parser_fuzzer fuzzerLogFile-0-jIoQqIU6VS.data fuzzerLogFile-0-jIoQqIU6VS.data.yaml parser_fuzzer.covreport
scalar_fuzzer fuzzerLogFile-0-tb7WtQIzi4.data fuzzerLogFile-0-tb7WtQIzi4.data.yaml scalar_fuzzer.covreport
monster_fuzzer fuzzerLogFile-0-xCEezFHnkP.data fuzzerLogFile-0-xCEezFHnkP.data.yaml monster_fuzzer.covreport