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
20	39	4 : View List ['bssl::der::Input::subspan(unsigned long, unsigned long) const', 'std::__1::pair & std::__1::vector , std::__1::allocator > >::emplace_back (bssl::der::Input&, bssl::der::Input&)', 'bssl::der::Input::first(unsigned long) const', 'bssl::IsValidNetmask(bssl::der::Input)']	24	87	bssl::ParseGeneralName(bssl::der::Input,bssl::GeneralNames::ParseGeneralNameIPAddressType,bssl::GeneralNames,bssl::CertErrors)	call site: 00000	/src/boringssl/pki/general_names.cc:175
0	7	1 : View List ['CBS_get_bytes']	0	7	cbs_get_any_asn1_element(cbs_st,cbs_st,unsignedint,unsignedlong,int,int,int)	call site: 00000	/src/boringssl/crypto/bytestring/cbs.cc:379
0	7	1 : View List ['CBS_get_bytes']	0	7	cbs_get_any_asn1_element(cbs_st,cbs_st,unsignedint,unsignedlong,int,int,int)	call site: 00000	/src/boringssl/crypto/bytestring/cbs.cc:387
0	0	None	24	327	bssl::ParseGeneralName(bssl::der::Input,bssl::GeneralNames::ParseGeneralNameIPAddressType,bssl::GeneralNames,bssl::CertErrors)	call site: 00000	/src/boringssl/pki/general_names.cc:116
0	0	None	2	9	bssl::der::Parser::ReadTagAndValue(unsignedint,bssl::der::Input)	call site: 00000	/src/boringssl/pki/parser.cc:62
0	0	None	0	100	bssl::der::Parser::ReadConstructed(unsignedint,bssl::der::Parser*)	call site: 00000	/src/boringssl/pki/parser.cc:123
0	0	None	0	49	cbs_get_any_asn1_element(cbs_st,cbs_st,unsignedint,unsignedlong,int,int,int)	call site: 00000	/src/boringssl/crypto/bytestring/cbs.cc:312
0	0	None	0	49	cbs_get_any_asn1_element(cbs_st,cbs_st,unsignedint,unsignedlong,int,int,int)	call site: 00000	/src/boringssl/crypto/bytestring/cbs.cc:315
0	0	None	0	7	cbs_get_any_asn1_element(cbs_st,cbs_st,unsignedint,unsignedlong,int,int,int)	call site: 00000	/src/boringssl/crypto/bytestring/cbs.cc:354
0	0	None	0	4	bssl::(anonymousnamespace)::ParseDistributionPointName(bssl::der::Input,bssl::ParsedDistributionPoint*)	call site: 00000	/src/boringssl/pki/parse_certificate.cc:181
0	0	None	0	0	cbs_get_any_asn1_element(cbs_st,cbs_st,unsignedint,unsignedlong,int,int,int)	call site: 00000	/src/boringssl/crypto/bytestring/cbs.cc:394
0	0	None	0	0	bssl::der::Parser::Advance()	call site: 00000	/src/boringssl/pki/parser.cc:42

Fuzzer calltree


         LLVMFuzzerTestOneInput

[function] [call site] 00000


           bssl::der::Input::Input(unsigned char const*, unsigned long)

[function] [call site] 00001


             bssl::Span<unsigned char const>::Span(unsigned char const*, unsigned long)

[function] [call site] 00002


           bssl::ParseCrlDistributionPoints(bssl::der::Input, std::__1::vector<bssl::ParsedDistributionPoint, std::__1::allocator<bssl::ParsedDistributionPoint> >*)

[function] [call site] 00003


             bssl::der::Parser::Parser(bssl::der::Input)

[function] [call site] 00004


               bssl::der::Input::data() const

[function] [call site] 00005


                 bssl::Span<unsigned char const>::data() const

[function] [call site] 00006


               bssl::der::Input::size() const

[function] [call site] 00007


                 bssl::Span<unsigned char const>::size() const

[function] [call site] 00008


               CBS_init

[function] [call site] 00009


             bssl::der::Parser::Parser()

[function] [call site] 00010


               CBS_init

[function] [call site] 00011


             bssl::der::Parser::ReadSequence(bssl::der::Parser*)

[function] [call site] 00012


               bssl::der::Parser::ReadConstructed(unsigned int, bssl::der::Parser*)

[function] [call site] 00013


                 bssl::der::Input::Input()

[function] [call site] 00014


                   bssl::Span<unsigned char const>::Span()

[function] [call site] 00015


                     bssl::Span<unsigned char const>::Span(unsigned char const*, unsigned long)

[function] [call site] 00016


                 bssl::der::Parser::ReadTag(unsigned int, bssl::der::Input*)

[function] [call site] 00017


                   bssl::der::Input::Input()

[function] [call site] 00018


                   bssl::der::Parser::PeekTagAndValue(unsigned int*, bssl::der::Input*)

[function] [call site] 00019


                     CBS_get_any_asn1_element

[function] [call site] 00020


                       cbs_get_any_asn1_element(cbs_st*, cbs_st*, unsigned int*, unsigned long*, int*, int*, int)

[function] [call site] 00021


                         __assert_fail

[call site] 00022


                         __assert_fail

[call site] 00023


                         parse_asn1_tag(cbs_st*, unsigned int*)

[function] [call site] 00024


                           CBS_get_u8

[function] [call site] 00025


                             cbs_get(cbs_st*, unsigned char const**, unsigned long)

[function] [call site] 00026


                           parse_base128_integer(cbs_st*, unsigned long*)

[function] [call site] 00027


                             CBS_get_u8

[function] [call site] 00028


                         CBS_get_u8

[function] [call site] 00029


                         CBS_len

[function] [call site] 00030


                         CBS_get_bytes

[function] [call site] 00031


                           cbs_get(cbs_st*, unsigned char const**, unsigned long)

[function] [call site] 00032


                           CBS_init

[function] [call site] 00033


                         cbs_get_u(cbs_st*, unsigned long*, unsigned long)

[function] [call site] 00034


                           cbs_get(cbs_st*, unsigned char const**, unsigned long)

[function] [call site] 00035


                         CBS_get_bytes

[function] [call site] 00036


                     CBS_skip

[function] [call site] 00037


                       cbs_get(cbs_st*, unsigned char const**, unsigned long)

[function] [call site] 00038


                     CBS_len

[function] [call site] 00039


                     CBS_data

[function] [call site] 00040


                     CBS_len

[function] [call site] 00041


                     bssl::der::Input::Input(unsigned char const*, unsigned long)

[function] [call site] 00042


                   bssl::der::Parser::Advance()

[function] [call site] 00043


                     CBS_skip

[function] [call site] 00044


                   abort

[call site] 00045


                 bssl::der::Parser::Parser(bssl::der::Input)

[function] [call site] 00046


             bssl::der::Parser::HasMore()

[function] [call site] 00047


               CBS_len

[function] [call site] 00048


             bssl::der::Parser::HasMore()

[function] [call site] 00049


             bssl::der::Parser::HasMore()

[function] [call site] 00050


             bssl::(anonymous namespace)::ParseAndAddDistributionPoint(bssl::der::Parser*, std::__1::vector<bssl::ParsedDistributionPoint, std::__1::allocator<bssl::ParsedDistributionPoint> >*)

[function] [call site] 00051


               bssl::ParsedDistributionPoint::ParsedDistributionPoint()

[function] [call site] 00052


               bssl::der::Parser::Parser()

[function] [call site] 00053


               bssl::der::Parser::ReadSequence(bssl::der::Parser*)

[function] [call site] 00054


               bssl::ParsedDistributionPoint::~ParsedDistributionPoint()

[function] [call site] 00055


               bssl::der::Parser::ReadOptionalTag(unsigned int, std::__1::optional<bssl::der::Input>*)

[function] [call site] 00056


                 bssl::der::Parser::HasMore()

[function] [call site] 00057


                 bssl::der::Input::Input()

[function] [call site] 00058


                 bssl::der::Parser::PeekTagAndValue(unsigned int*, bssl::der::Input*)

[function] [call site] 00059


                 bssl::der::Parser::Advance()

[function] [call site] 00060


                 abort

[call site] 00061


               std::__1::optional<bssl::der::Input>::operator*[abi:ne180100]() &

[function] [call site] 00062


                 std::__1::__optional_storage_base<bssl::der::Input, false>::__get[abi:ne180100]() &

[function] [call site] 00063


               bssl::(anonymous namespace)::ParseDistributionPointName(bssl::der::Input, bssl::ParsedDistributionPoint*)

[function] [call site] 00064


                 bssl::der::Parser::Parser(bssl::der::Input)

[function] [call site] 00065


                 bssl::der::Parser::ReadOptionalTag(unsigned int, std::__1::optional<bssl::der::Input>*)

[function] [call site] 00066


                 bssl::CertErrors::CertErrors()

[function] [call site] 00067


                 std::__1::optional<bssl::der::Input>::operator*[abi:ne180100]() &

[function] [call site] 00068


                 bssl::GeneralNames::CreateFromValue(bssl::der::Input, bssl::CertErrors*)

[function] [call site] 00069


                   bssl::der::Parser::Parser(bssl::der::Input)

[function] [call site] 00070


                   bssl::der::Parser::HasMore()

[function] [call site] 00071


                   bssl::CertErrors::AddError(void const*)

[function] [call site] 00072


                     bssl::CertErrors::AddError(void const*, std::__1::unique_ptr<bssl::CertErrorParams, std::__1::default_delete<bssl::CertErrorParams> >)

[function] [call site] 00073


                       bssl::CertErrors::Add(bssl::CertError::Severity, void const*, std::__1::unique_ptr<bssl::CertErrorParams, std::__1::default_delete<bssl::CertErrorParams> >)

[function] [call site] 00074


                   bssl::der::Parser::HasMore()

[function] [call site] 00075


                   bssl::der::Input::Input()

[function] [call site] 00076


                   bssl::der::Parser::ReadRawTLV(bssl::der::Input*)

[function] [call site] 00077


                     CBS_get_any_asn1_element

[function] [call site] 00078


                     CBS_data

[function] [call site] 00079


                     CBS_len

[function] [call site] 00080


                     bssl::der::Input::Input(unsigned char const*, unsigned long)

[function] [call site] 00081


                   bssl::CertErrors::AddError(void const*)

[function] [call site] 00082


                   bssl::ParseGeneralName(bssl::der::Input, bssl::GeneralNames::ParseGeneralNameIPAddressType, bssl::GeneralNames*, bssl::CertErrors*)

[function] [call site] 00083


                     abort

[call site] 00084


                     bssl::der::Parser::Parser(bssl::der::Input)

[function] [call site] 00085


                     bssl::der::Input::Input()

[function] [call site] 00086


                     bssl::der::Parser::ReadTagAndValue(unsigned int*, bssl::der::Input*)

[function] [call site] 00087


                       bssl::der::Parser::PeekTagAndValue(unsigned int*, bssl::der::Input*)

[function] [call site] 00088


                       bssl::der::Parser::Advance()

[function] [call site] 00089


                       abort

[call site] 00090


                     bssl::Span<unsigned char const>::Span<bssl::der::Input, void, bssl::der::Input>(bssl::der::Input const&)

[function] [call site] 00091


                       bssl::der::Input::data() const

[function] [call site] 00092


                       bssl::der::Input::size() const

[function] [call site] 00093


                     bssl::BytesAsStringView(bssl::Span<unsigned char const>)

[function] [call site] 00094


                       bssl::Span<unsigned char const>::data() const

[function] [call site] 00095


                       bssl::Span<unsigned char const>::size() const

[function] [call site] 00096


                     bssl::string_util::IsAscii(std::__1::basic_string_view<char, std::__1::char_traits<char> >)

[function] [call site] 00097


                     bssl::CertErrors::AddError(void const*)

[function] [call site] 00098


                     bssl::Span<unsigned char const>::Span<bssl::der::Input, void, bssl::der::Input>(bssl::der::Input const&)

[function] [call site] 00099


                     bssl::BytesAsStringView(bssl::Span<unsigned char const>)

[function] [call site] 00100


                     bssl::string_util::IsAscii(std::__1::basic_string_view<char, std::__1::char_traits<char> >)

[function] [call site] 00101


                     bssl::CertErrors::AddError(void const*)

[function] [call site] 00102


                     bssl::der::Parser::Parser(bssl::der::Input)

[function] [call site] 00103


                     bssl::der::Input::Input()

[function] [call site] 00104


                     bssl::der::Parser::ReadTag(unsigned int, bssl::der::Input*)

[function] [call site] 00105


                     bssl::der::Parser::HasMore()

[function] [call site] 00106


                     bssl::Span<unsigned char const>::Span<bssl::der::Input, void, bssl::der::Input>(bssl::der::Input const&)

[function] [call site] 00107


                     bssl::BytesAsStringView(bssl::Span<unsigned char const>)

[function] [call site] 00108


                     bssl::string_util::IsAscii(std::__1::basic_string_view<char, std::__1::char_traits<char> >)

[function] [call site] 00109


                     bssl::CertErrors::AddError(void const*)

[function] [call site] 00110


                     bssl::der::Input::size() const

[function] [call site] 00111


                     bssl::der::Input::size() const

[function] [call site] 00112


                     bssl::CertErrors::AddError(void const*)

[function] [call site] 00113


                     abort

[call site] 00114


                     bssl::der::Input::size() const

[function] [call site] 00115


                     bssl::der::Input::size() const

[function] [call site] 00116


                     bssl::CertErrors::AddError(void const*)

[function] [call site] 00117


                     bssl::der::Input::size() const

[function] [call site] 00118


                     bssl::der::Input::first(unsigned long) const

[function] [call site] 00119


                       bssl::Span<unsigned char const>::first(unsigned long) const

[function] [call site] 00120


                         abort

[call site] 00121


                         bssl::Span<unsigned char const>::Span(unsigned char const*, unsigned long)

[function] [call site] 00122


                       bssl::der::Input::Input(bssl::Span<unsigned char const>)

[function] [call site] 00123


                     bssl::der::Input::size() const

[function] [call site] 00124


                     bssl::der::Input::subspan(unsigned long, unsigned long) const

[function] [call site] 00125


                       bssl::Span<unsigned char const>::subspan(unsigned long, unsigned long) const

[function] [call site] 00126


                         abort

[call site] 00127


                         bssl::Span<unsigned char const>::Span(unsigned char const*, unsigned long)

[function] [call site] 00128


                       bssl::der::Input::Input(bssl::Span<unsigned char const>)

[function] [call site] 00129


                     bssl::IsValidNetmask(bssl::der::Input)

[function] [call site] 00130


                       bssl::der::Input::size() const

[function] [call site] 00131


                       bssl::der::Input::operator[](unsigned long) const

[function] [call site] 00132


                         bssl::Span<unsigned char const>::operator[](unsigned long) const

[function] [call site] 00133


                           abort

[call site] 00134


                       bssl::der::Input::size() const

[function] [call site] 00135


                       bssl::der::Input::operator[](unsigned long) const

[function] [call site] 00136


                     bssl::CertErrors::AddError(void const*)

[function] [call site] 00137


                     bssl::CreateCertErrorParams1SizeT(char const*, unsigned long)

[function] [call site] 00138


                       abort

[call site] 00139


                     bssl::CertErrors::AddError(void const*, std::__1::unique_ptr<bssl::CertErrorParams, std::__1::default_delete<bssl::CertErrorParams> >)

[function] [call site] 00140


                     abort

[call site] 00141


                   bssl::CertErrors::AddError(void const*)

[function] [call site] 00142


                 bssl::CertErrors::~CertErrors()

[function] [call site] 00143


                 bssl::der::Parser::HasMore()

[function] [call site] 00144


                 bssl::der::Parser::ReadOptionalTag(unsigned int, std::__1::optional<bssl::der::Input>*)

[function] [call site] 00145


                 bssl::der::Parser::HasMore()

[function] [call site] 00146


               bssl::der::Parser::ReadOptionalTag(unsigned int, std::__1::optional<bssl::der::Input>*)

[function] [call site] 00147


               bssl::der::Parser::ReadOptionalTag(unsigned int, std::__1::optional<bssl::der::Input>*)

[function] [call site] 00148


               bssl::der::Parser::HasMore()

[function] [call site] 00149


           abort

[call site] 00150