Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked	Calltree index	Parent function	Callsite	Largest blocked function
75	28	dns.entropy.EntropyPool.random_8	call site: {node_id}	dns.message._TextReader._rr_line
21	3	...fuzz_message.TestOneInput	call site: {node_id}	dns.message._TextReader.read
15	105	dns.flags._from_text	call site: {node_id}	dns.message._TextReader._make_message
2	25	dns.entropy.EntropyPool._maybe_seed	call site: {node_id}	.bytearray

Fuzzer calltree


         ...fuzz_message.TestOneInput

[function] [call site] 00000


           atheris.FuzzedDataProvider

[function] [call site] 00001


           fdp.ConsumeUnicodeNoSurrogates

[function] [call site] 00002


           dns.message.from_text

[function] [call site] 00003


             dns.message._TextReader.__init__

[function] [call site] 00004


               dns.tokenizer.Tokenizer

[function] [call site] 00005


             dns.message._TextReader.read

[function] [call site] 00006


               token.is_eol_or_eof

[function] [call site] 00007


               token.is_comment

[function] [call site] 00008


               token.value.upper

[function] [call site] 00009


               dns.message._TextReader._make_message

[function] [call site] 00010


                 dns.message._message_factory_from_opcode

[function] [call site] 00011


                   dns.message._maybe_import_update

[function] [call site] 00012


                 dns.message.Message.__init__

[function] [call site] 00013


                   dns.entropy.random_16

[function] [call site] 00014


                     system_random.randrange

[function] [call site] 00015


                     dns.entropy.EntropyPool.random_16

[function] [call site] 00016


                       dns.entropy.EntropyPool.random_8

[function] [call site] 00017


                         dns.entropy.EntropyPool._maybe_seed

[function] [call site] 00018


                           os.getpid

[function] [call site] 00019


                           os.urandom

[function] [call site] 00020


                           
                            .open

[function] [call site] 00021


                           r.read

[function] [call site] 00022


                           time.time

[function] [call site] 00023


                           
                            .str

[function] [call site] 00024


                           os.getpid

[function] [call site] 00025


                           
                            .bytearray

[function] [call site] 00026


                           dns.entropy.EntropyPool._stir

[function] [call site] 00027


                         
                          .bytes

[function] [call site] 00028


                         
                          .bytearray

[function] [call site] 00029


                         dns.entropy.EntropyPool._stir

[function] [call site] 00030


                       dns.entropy.EntropyPool.random_8

[function] [call site] 00031


                 dns.message.Message.__init__

[function] [call site] 00032


                 message.use_edns

[function] [call site] 00033


                 message.set_rcode

[function] [call site] 00034


               message._section_enum.from_text

[function] [call site] 00035


               message._get_one_rr_per_rrset

[function] [call site] 00036


               dns.message._TextReader._rr_line

[function] [call site] 00037


                 token.is_whitespace

[function] [call site] 00038


                 token.is_identifier

[function] [call site] 00039


                 
                  .int

[function] [call site] 00040


                 token.is_identifier

[function] [call site] 00041


                 dns.rdataclass.from_text

[function] [call site] 00042


                   RdataClass.from_text

[function] [call site] 00043


                 token.is_identifier

[function] [call site] 00044


                 dns.rdatatype.from_text

[function] [call site] 00045


                   RdataType.from_text

[function] [call site] 00046


                 token.is_eol_or_eof

[function] [call site] 00047


                 token.is_eol_or_eof

[function] [call site] 00048


                 token.is_eol_or_eof

[function] [call site] 00049


                 dns.rdata.from_text

[function] [call site] 00050


                   
                    .isinstance

[function] [call site] 00051


                   dns.tokenizer.Tokenizer

[function] [call site] 00052


                   dns.rdataclass.RdataClass.make

[function] [call site] 00053


                   dns.rdatatype.RdataType.make

[function] [call site] 00054


                   dns.rdata.get_rdata_class

[function] [call site] 00055


                     _rdata_classes.get

[function] [call site] 00056


                     _rdata_classes.get

[function] [call site] 00057


                     dns.rdataclass.to_text

[function] [call site] 00058


                       RdataClass.to_text

[function] [call site] 00059


                     dns.rdatatype.to_text

[function] [call site] 00060


                       RdataType.to_text

[function] [call site] 00061


                     rdtype_text.replace

[function] [call site] 00062


                     importlib.import_module

[function] [call site] 00063


                     
                      .getattr

[function] [call site] 00064


                     importlib.import_module

[function] [call site] 00065


                     
                      .getattr

[function] [call site] 00066


                   dns.exception.ExceptionWrapper

[function] [call site] 00067


                   tok.get

[function] [call site] 00068


                   tok.unget

[function] [call site] 00069


                   token.is_identifier

[function] [call site] 00070


                   dns.rdata.GenericRdata.from_text

[function] [call site] 00071


                     tok.get

[function] [call site] 00072


                     token.is_identifier

[function] [call site] 00073


                     tok.get_int

[function] [call site] 00074


                     tok.concatenate_remaining_identifiers

[function] [call site] 00075


                     binascii.unhexlify

[function] [call site] 00076


                     
                      .len

[function] [call site] 00077


                     dns.rdata.GenericRdata.__init__

[function] [call site] 00078


                       
                        .super

[function] [call site] 00079


                   dns.rdata.from_wire

[function] [call site] 00080


                     dns.wire.Parser

[function] [call site] 00081


                       contextlib.contextmanager

[function] [call site] 00082


                       contextlib.contextmanager

[function] [call site] 00083


                     parser.restrict_to

[function] [call site] 00084


                     dns.rdata.from_wire_parser

[function] [call site] 00085


                       dns.rdataclass.RdataClass.make

[function] [call site] 00086


                       dns.rdatatype.RdataType.make

[function] [call site] 00087


                       dns.rdata.get_rdata_class

[function] [call site] 00088


                       dns.exception.ExceptionWrapper

[function] [call site] 00089


                       dns.rdata.GenericRdata.from_wire_parser

[function] [call site] 00090


                         parser.get_remaining

[function] [call site] 00091


                         dns.rdata.GenericRdata.__init__

[function] [call site] 00092


                   
                    .len

[function] [call site] 00093


                   rdata.to_wire

[function] [call site] 00094


                   dns.rdata.GenericRdata.from_text

[function] [call site] 00095


                   tok.get_eol_as_token

[function] [call site] 00096


                   object.__setattr__

[function] [call site] 00097


                 rd.covers

[function] [call site] 00098


                 rrset.add

[function] [call site] 00099


               dns.message._TextReader._header_line

[function] [call site] 00100


                 token.is_identifier

[function] [call site] 00101


                 dns.flags.from_text

[function] [call site] 00102


                   dns.flags._from_text

[function] [call site] 00103


                     text.split

[function] [call site] 00104


                     t.upper

[function] [call site] 00105


                 token.is_identifier

[function] [call site] 00106


                 dns.flags.edns_from_text

[function] [call site] 00107


                   dns.flags._from_text

[function] [call site] 00108


                 dns.opcode.from_text

[function] [call site] 00109


                   Opcode.from_text

[function] [call site] 00110


                 dns.opcode.to_flags

[function] [call site] 00111


                 dns.rcode.from_text

[function] [call site] 00112


                   Rcode.from_text

[function] [call site] 00113


               dns.message._TextReader._question_line

[function] [call site] 00114


                 token.is_whitespace

[function] [call site] 00115


                 token.is_identifier

[function] [call site] 00116


                 dns.rdataclass.from_text

[function] [call site] 00117


                 token.is_identifier

[function] [call site] 00118


                 dns.rdatatype.from_text

[function] [call site] 00119


               dns.message._TextReader._make_message

[function] [call site] 00120