Fuzz introspector: runlength_fuzzer
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
12 16 FuzzHelper::doChecks() call site: 00016
5 9 Pl_RunLength::Pl_RunLength(char const*, Pipeline*, Pl_RunLength::action_e) call site: 00009 __cxa_allocate_exception
2 36 FuzzHelper::doChecks() call site: 00036
1 54 FuzzHelper::run() call site: 00054 __cxa_begin_catch

Fuzzer calltree

0 LLVMFuzzerTestOneInput [function] [call site] 00000
1 FuzzHelper::FuzzHelper(unsigned char const*, unsigned long) [function] [call site] 00001
1 FuzzHelper::run() [function] [call site] 00002
2 FuzzHelper::doChecks() [function] [call site] 00003
3 Pl_RunLength::setMemoryLimit(unsigned long long) [function] [call site] 00004
3 Pl_Discard::Pl_Discard() [function] [call site] 00005
4 Pipeline::Pipeline(char const*, Pipeline*) [function] [call site] 00006
3 Pl_RunLength::Pl_RunLength(char const*, Pipeline*, Pl_RunLength::action_e) [function] [call site] 00007
4 Pipeline::Pipeline(char const*, Pipeline*) [function] [call site] 00008
4 void qpdf::util::assertion<char const (&) [52]>(bool, char const (&) [52]) [function] [call site] 00009
5 __cxa_allocate_exception [call site] 00010
5 std::logic_error::logic_error(char const*) [call site] 00011
5 __cxa_throw [call site] 00012
5 std::logic_error::~logic_error() [call site] 00013
5 __cxa_free_exception [call site] 00014
4 Pipeline::~Pipeline() [function] [call site] 00015
3 Pl_RunLength::write(unsigned char const*, unsigned long) [function] [call site] 00016
4 Pl_RunLength::encode(unsigned char const*, unsigned long) [function] [call site] 00017
5 void qpdf::util::assertion<char const (&) [49]>(bool, char const (&) [49]) [function] [call site] 00018
5 QTC::TC(char const*, char const*, int) [function] [call site] 00019
5 Pl_RunLength::flush_encode() [function] [call site] 00020
6 QTC::TC(char const*, char const*, int) [function] [call site] 00021
6 QTC::TC(char const*, char const*, int) [function] [call site] 00022
6 void qpdf::util::assertion<char const (&) [53]>(bool, char const (&) [53]) [function] [call site] 00023
6 Pipeline::next() const [function] [call site] 00024
6 Pipeline::next() const [function] [call site] 00025
6 Pipeline::next() const [function] [call site] 00026
6 Pipeline::next() const [function] [call site] 00027
5 Pl_RunLength::flush_encode() [function] [call site] 00028
4 Pl_RunLength::decode(unsigned char const*, unsigned long) [function] [call site] 00029
5 void qpdf::util::no_ci_rt_error_if<char const (&) [35]>(bool, char const (&) [35]) [function] [call site] 00030
6 __cxa_allocate_exception [call site] 00031
6 std::runtime_error::runtime_error(char const*) [call site] 00032
6 __cxa_throw [call site] 00033
6 std::runtime_error::~runtime_error() [call site] 00034
6 __cxa_free_exception [call site] 00035
3 Pl_RunLength::finish() [function] [call site] 00036
4 Pl_RunLength::flush_encode() [function] [call site] 00037
4 Pipeline::next() const [function] [call site] 00038
4 __cxa_allocate_exception [call site] 00039
4 std::runtime_error::runtime_error(char const*) [call site] 00040
4 __cxa_throw [call site] 00041
4 std::runtime_error::~runtime_error() [call site] 00042
4 __cxa_free_exception [call site] 00043
4 Pipeline::next() const [function] [call site] 00044
4 Pipeline::writeString(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&) [function] [call site] 00045
5 Pipeline::write(char const*, unsigned long) [function] [call site] 00046
4 Pipeline::next() const [function] [call site] 00047
3 Pl_RunLength::~Pl_RunLength() [function] [call site] 00048
4 Pipeline::~Pipeline() [function] [call site] 00049
3 Pl_Discard::~Pl_Discard() [function] [call site] 00050
4 Pipeline::~Pipeline() [function] [call site] 00051
2 __cxa_begin_catch [call site] 00052
2 __cxa_end_catch [call site] 00053
2 __clang_call_terminate [call site] 00054
3 __cxa_begin_catch [call site] 00055