Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked	Calltree index	Parent function	Callsite	Largest blocked function
67	70	...fuzz_h11.fuzz_connection	call site: 00070	h11._connection.Connection.send_with_data_passthrough
21	138	h11._connection._keep_alive	call site: 00138	h11._connection.Connection._process_error
16	18	h11._util.validate	call site: 00018	h11._util.validate
9	161	...fuzz_h11.fuzz_connection	call site: 00161	h11._connection.Connection._process_event
8	7	...fuzz_h11.fuzz_headers	call site: 00007	h11._util.bytesify
6	46	h11._events.Request.__init__	call site: 00046	h11._util.bytesify
5	35	...fuzz_h11.fuzz_headers	call site: 00035	h11._headers.get_comma_header
3	54	h11._events.Request.__init__	call site: 00054	h11._util.validate
2	4	...fuzz_h11.fuzz_headers	call site: 00004	fdp.ConsumeBytes
2	172	...fuzz_h11.fuzz_connection	call site: 00172	fdp.ConsumeUnicodeNoSurrogates
2	177	...fuzz_h11.fuzz_connection	call site: 00177	h11._connection.Connection.receive_data
1	16	h11._util.validate	call site: 00016	msg.format

Fuzzer calltree


         ...fuzz_h11.TestOneInput

[function] [call site] 00000


           ...fuzz_h11.fuzz_headers

[function] [call site] 00001


             atheris.FuzzedDataProvider

[function] [call site] 00002


             fdp.ConsumeBytes

[function] [call site] 00003


             fdp.ConsumeBytes

[function] [call site] 00004


             fdp.ConsumeBytes

[function] [call site] 00005


             fdp.ConsumeBytes

[function] [call site] 00006


             h11._headers.normalize_and_validate

[function] [call site] 00007


               h11._util.bytesify

[function] [call site] 00008


                 <builtin>.type

[function] [call site] 00009


                 <builtin>.isinstance

[function] [call site] 00010


                 s.encode

[function] [call site] 00011


                 <builtin>.isinstance

[function] [call site] 00012


                 <builtin>.bytes

[function] [call site] 00013


               h11._util.bytesify

[function] [call site] 00014


               h11._util.validate

[function] [call site] 00015


                 regex.fullmatch

[function] [call site] 00016


                 msg.format

[function] [call site] 00017


                 match.groupdict

[function] [call site] 00018


               h11._util.validate

[function] [call site] 00019


               <builtin>.isinstance

[function] [call site] 00020


               <builtin>.isinstance

[function] [call site] 00021


               name.lower

[function] [call site] 00022


               length.strip

[function] [call site] 00023


               value.split

[function] [call site] 00024


               <builtin>.len

[function] [call site] 00025


               lengths.pop

[function] [call site] 00026


               h11._util.validate

[function] [call site] 00027


               <builtin>.len

[function] [call site] 00028


               new_headers.append

[function] [call site] 00029


               value.lower

[function] [call site] 00030


               new_headers.append

[function] [call site] 00031


               new_headers.append

[function] [call site] 00032


               h11._headers.Headers.__init__

[function] [call site] 00033


             fdp.ConsumeBytes

[function] [call site] 00034


             h11._headers.has_expect_100_continue

[function] [call site] 00035


               h11._headers.get_comma_header

[function] [call site] 00036


                 found_raw_value.lower

[function] [call site] 00037


                 found_raw_value.split

[function] [call site] 00038


                 found_split_value.strip

[function] [call site] 00039


                 out.append

[function] [call site] 00040


             h11._events.Request.__init__

[function] [call site] 00041


               <builtin>.super

[function] [call site] 00042


               <builtin>.isinstance

[function] [call site] 00043


               object.__setattr__

[function] [call site] 00044


               object.__setattr__

[function] [call site] 00045


               h11._headers.normalize_and_validate

[function] [call site] 00046


               h11._util.bytesify

[function] [call site] 00047


               object.__setattr__

[function] [call site] 00048


               h11._util.bytesify

[function] [call site] 00049


               object.__setattr__

[function] [call site] 00050


               h11._util.bytesify

[function] [call site] 00051


               object.__setattr__

[function] [call site] 00052


               object.__setattr__

[function] [call site] 00053


               object.__setattr__

[function] [call site] 00054


               object.__setattr__

[function] [call site] 00055


               h11._util.validate

[function] [call site] 00056


               h11._util.validate

[function] [call site] 00057


           ...fuzz_h11.fuzz_receivebuffer

[function] [call site] 00058


             atheris.FuzzedDataProvider

[function] [call site] 00059


             h11._receivebuffer.ReceiveBuffer.__init__

[function] [call site] 00060


               <builtin>.bytearray

[function] [call site] 00061


             <builtin>.range

[function] [call site] 00062


             fdp.ConsumeBytes

[function] [call site] 00063


             fdp.ConsumeIntInRange

[function] [call site] 00064


             abc.ABC.maybe_extract_at_most

[function] [call site] 00065


             abc.ABC.maybe_extract_next_line

[function] [call site] 00066


             abc.ABC.maybe_extract_lines

[function] [call site] 00067


           ...fuzz_h11.fuzz_connection

[function] [call site] 00068


             atheris.FuzzedDataProvider

[function] [call site] 00069


             h11._connection.Connection.send

[function] [call site] 00070


               h11._connection.Connection.send_with_data_passthrough

[function] [call site] 00071


                 <builtin>.type

[function] [call site] 00072


                 h11._connection.Connection._clean_up_response_headers_for_sending

[function] [call site] 00073


                   <builtin>.type

[function] [call site] 00074


                   typing.cast

[function] [call site] 00075


                   h11._connection._body_framing

[function] [call site] 00076


                     <builtin>.type

[function] [call site] 00077


                     <builtin>.type

[function] [call site] 00078


                     h11._headers.get_comma_header

[function] [call site] 00079


                     h11._headers.get_comma_header

[function] [call site] 00080


                     <builtin>.int

[function] [call site] 00081


                     <builtin>.type

[function] [call site] 00082


                   h11._headers.set_comma_header

[function] [call site] 00083


                     new_headers.append

[function] [call site] 00084


                     name.title

[function] [call site] 00085


                     new_headers.append

[function] [call site] 00086


                     h11._headers.normalize_and_validate

[function] [call site] 00087


                   h11._headers.set_comma_header

[function] [call site] 00088


                   h11._headers.set_comma_header

[function] [call site] 00089


                   h11._headers.get_comma_header

[function] [call site] 00090


                   <builtin>.set

[function] [call site] 00091


                   connection.discard

[function] [call site] 00092


                   connection.add

[function] [call site] 00093


                   <builtin>.sorted

[function] [call site] 00094


                   h11._headers.set_comma_header

[function] [call site] 00095


                   h11._events._ResponseBase.__init__

[function] [call site] 00096


                     <builtin>.super

[function] [call site] 00097


                     <builtin>.isinstance

[function] [call site] 00098


                     object.__setattr__

[function] [call site] 00099


                     object.__setattr__

[function] [call site] 00100


                     h11._headers.normalize_and_validate

[function] [call site] 00101


                     h11._util.bytesify

[function] [call site] 00102


                     object.__setattr__

[function] [call site] 00103


                     h11._util.bytesify

[function] [call site] 00104


                     object.__setattr__

[function] [call site] 00105


                     <builtin>.isinstance

[function] [call site] 00106


                     <builtin>.int

[function] [call site] 00107


                     object.__setattr__

[function] [call site] 00108


                     object.__setattr__

[function] [call site] 00109


                     object.__setattr__

[function] [call site] 00110


                     object.__setattr__

[function] [call site] 00111


                     h11._events._ResponseBase.__post_init__

[function] [call site] 00112


                     h11._events.Response.__post_init__

[function] [call site] 00113


                 h11._connection.Connection._process_event

[function] [call site] 00114


                   <builtin>.dict

[function] [call site] 00115


                   <builtin>.type

[function] [call site] 00116


                   h11._state.ConnectionState.process_client_switch_proposal

[function] [call site] 00117


                     h11._state.ConnectionState._fire_state_triggered_transitions

[function] [call site] 00118


                       <builtin>.dict

[function] [call site] 00119


                       STATE_TRIGGERED_TRANSITIONS.get

[function] [call site] 00120


                   h11._headers.get_comma_header

[function] [call site] 00121


                   h11._state.ConnectionState.process_client_switch_proposal

[function] [call site] 00122


                   h11._connection.Connection._server_switch_event

[function] [call site] 00123


                     <builtin>.type

[function] [call site] 00124


                     <builtin>.type

[function] [call site] 00125


                   <builtin>.type

[function] [call site] 00126


                   h11._state.ConnectionState.process_event

[function] [call site] 00127


                     <builtin>.set

[function] [call site] 00128


                     h11._state.ConnectionState._fire_event_triggered_transitions

[function] [call site] 00129


                       typing.cast

[function] [call site] 00130


                     h11._state.ConnectionState._fire_event_triggered_transitions

[function] [call site] 00131


                     h11._state.ConnectionState._fire_state_triggered_transitions

[function] [call site] 00132


                   <builtin>.type

[function] [call site] 00133


                   <builtin>.type

[function] [call site] 00134


                   typing.cast

[function] [call site] 00135


                   <builtin>.type

[function] [call site] 00136


                   h11._connection._keep_alive

[function] [call site] 00137


                     h11._headers.get_comma_header

[function] [call site] 00138


                     <builtin>.getattr

[function] [call site] 00139


                   typing.cast

[function] [call site] 00140


                   h11._state.ConnectionState.process_keep_alive_disabled

[function] [call site] 00141


                     h11._state.ConnectionState._fire_state_triggered_transitions

[function] [call site] 00142


                   <builtin>.type

[function] [call site] 00143


                   h11._headers.has_expect_100_continue

[function] [call site] 00144


                   <builtin>.type

[function] [call site] 00145


                   <builtin>.type

[function] [call site] 00146


                   h11._connection.Connection._respond_to_state_changes

[function] [call site] 00147


                     h11._connection.Connection._get_io_object

[function] [call site] 00148


                       h11._connection._body_framing

[function] [call site] 00149


                       typing.cast

[function] [call site] 00150


                       typing.cast

[function] [call site] 00151


                       io_dict.get

[function] [call site] 00152


                     h11._connection.Connection._get_io_object

[function] [call site] 00153


                 <builtin>.type

[function] [call site] 00154


                 h11._connection.Connection._process_error

[function] [call site] 00155


                   <builtin>.dict

[function] [call site] 00156


                   h11._state.ConnectionState.process_error

[function] [call site] 00157


                     h11._state.ConnectionState._fire_state_triggered_transitions

[function] [call site] 00158


                   h11._connection.Connection._respond_to_state_changes

[function] [call site] 00159


             h11._connection.Connection.send

[function] [call site] 00160


             h11._connection.Connection.next_event

[function] [call site] 00161


               h11._connection.Connection._extract_next_receive_event

[function] [call site] 00162


                 <builtin>.hasattr

[function] [call site] 00163


                 abc.ABC.__init__

[function] [call site] 00164


               typing.cast

[function] [call site] 00165


               h11._connection.Connection._process_event

[function] [call site] 00166


               <builtin>.len

[function] [call site] 00167


               h11._connection.Connection._process_error

[function] [call site] 00168


               <builtin>.isinstance

[function] [call site] 00169


               exc._reraise_as_remote_protocol_error

[function] [call site] 00170


             fdp.ConsumeBytes

[function] [call site] 00171


             h11._connection.Connection.receive_data

[function] [call site] 00172


             fdp.ConsumeUnicodeNoSurrogates

[function] [call site] 00173


             fdp.ConsumeUnicodeNoSurrogates

[function] [call site] 00174


             h11._connection.Connection.send

[function] [call site] 00175


             h11._connection.Connection.send

[function] [call site] 00176


             h11._connection.Connection.next_event

[function] [call site] 00177


             fdp.ConsumeBytes

[function] [call site] 00178


             h11._connection.Connection.receive_data

[function] [call site] 00179