Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked	Calltree index	Parent function	Callsite	Largest blocked function
32	10	jupyter_client.session.json_packer	call site: 00010	jupyter_client.jsonutil.json_clean
15	44	jupyter_client.session.Session._check_packers	call site: 00044	jupyter_client.session.Session._check_packers.
6	102	jupyter_client.session.Session.msg	call site: 00102	fdp.ConsumeBytes
5	63	jupyter_client.session.Session._check_packers	call site: 00063	jupyter_client.session.Session._check_packers.
3	138	jupyter_client.jsonutil.parse_date	call site: 00138	warnings.warn
2	93	jupyter_client.session.Session._new_auth	call site: 00093	traitlets.log.get_logger
2	99	jupyter_client.session.Session.msg	call site: 00099	.isinstance
1	132	jupyter_client.jsonutil.extract_dates	call site: 00132	jupyter_client.jsonutil.extract_dates

Fuzzer calltree


         ...fuzz_serialization.TestOneInput

[function] [call site] 00000


           atheris.FuzzedDataProvider

[function] [call site] 00001


           fdp.ConsumeString

[function] [call site] 00002


           fdp.ConsumeString

[function] [call site] 00003


           <builtin>.len

[function] [call site] 00004


           <builtin>.len

[function] [call site] 00005


           jupyter_client.session.Session.__init__

[function] [call site] 00006


             <builtin>.super

[function] [call site] 00007


             jupyter_client.session.Session._check_packers

[function] [call site] 00008


               jupyter_client.session.json_packer

[function] [call site] 00009


                 json.dumps

[function] [call site] 00010


                 json.dumps

[function] [call site] 00011


                 jupyter_client.jsonutil.json_clean

[function] [call site] 00012


                   <builtin>.type

[function] [call site] 00013


                   <builtin>.isinstance

[function] [call site] 00014


                   <builtin>.isinstance

[function] [call site] 00015


                   <builtin>.int

[function] [call site] 00016


                   <builtin>.isinstance

[function] [call site] 00017


                   math.isnan

[function] [call site] 00018


                   math.isinf

[function] [call site] 00019


                   <builtin>.repr

[function] [call site] 00020


                   <builtin>.float

[function] [call site] 00021


                   <builtin>.isinstance

[function] [call site] 00022


                   <builtin>.isinstance

[function] [call site] 00023


                   binascii.b2a_base64

[function] [call site] 00024


                   binascii.b2a_base64.decode

[function] [call site] 00025


                   <builtin>.isinstance

[function] [call site] 00026


                   <builtin>.hasattr

[function] [call site] 00027


                   <builtin>.hasattr

[function] [call site] 00028


                   <builtin>.list

[function] [call site] 00029


                   <builtin>.isinstance

[function] [call site] 00030


                   jupyter_client.jsonutil.json_clean

[function] [call site] 00031


                   <builtin>.isinstance

[function] [call site] 00032


                   <builtin>.len

[function] [call site] 00033


                   <builtin>.map

[function] [call site] 00034


                   <builtin>.set

[function] [call site] 00035


                   <builtin>.len

[function] [call site] 00036


                   obj.items

[function] [call site] 00037


                   <builtin>.str

[function] [call site] 00038


                   jupyter_client.jsonutil.json_clean

[function] [call site] 00039


                   <builtin>.isinstance

[function] [call site] 00040


                   obj.strftime

[function] [call site] 00041


                 warnings.warn

[function] [call site] 00042


               traitlets.Callable

[function] [call site] 00043


               jupyter_client.session.Session._check_packers.<lambda1>

[function] [call site] 00044


                 jupyter_client.jsonutil.squash_dates

[function] [call site] 00045


                   <builtin>.isinstance

[function] [call site] 00046


                   <builtin>.dict

[function] [call site] 00047


                   obj.items

[function] [call site] 00048


                   jupyter_client.jsonutil.squash_dates

[function] [call site] 00049


                   <builtin>.isinstance

[function] [call site] 00050


                   jupyter_client.jsonutil.squash_dates

[function] [call site] 00051


                   <builtin>.isinstance

[function] [call site] 00052


                   obj.isoformat

[function] [call site] 00053


                 jupyter_client.session.json_packer

[function] [call site] 00054


                 traitlets.Callable

[function] [call site] 00055


                 jupyter_client.session.Session._check_packers.<lambda1>

[function] [call site] 00056


                 jupyter_client.session.pickle_packer

[function] [call site] 00057


                   jupyter_client.jsonutil.squash_dates

[function] [call site] 00058


                   pickle.dumps

[function] [call site] 00059


               jupyter_client.session.pickle_packer

[function] [call site] 00060


               <builtin>.isinstance

[function] [call site] 00061


               pickle.loads

[function] [call site] 00062


               jupyter_client.session.Session._check_packers.<lambda2>

[function] [call site] 00063


                 pickle.loads

[function] [call site] 00064


                 jupyter_client.session.Session._check_packers.<lambda2>

[function] [call site] 00065


                 traitlets.Callable

[function] [call site] 00066


                 msgpack.unpackb

[function] [call site] 00067


                 jupyter_client.session.json_unpacker

[function] [call site] 00068


                   <builtin>.isinstance

[function] [call site] 00069


                   s.decode

[function] [call site] 00070


                   json.loads

[function] [call site] 00071


               traitlets.Callable

[function] [call site] 00072


               msgpack.unpackb

[function] [call site] 00073


               jupyter_client.session.json_unpacker

[function] [call site] 00074


               jupyter_client.session.utcnow

[function] [call site] 00075


                 datetime.datetime.now

[function] [call site] 00076


               jupyter_client.session.json_packer

[function] [call site] 00077


               traitlets.Callable

[function] [call site] 00078


               jupyter_client.session.Session._check_packers.<lambda1>

[function] [call site] 00079


               jupyter_client.session.pickle_packer

[function] [call site] 00080


               pickle.loads

[function] [call site] 00081


               jupyter_client.session.Session._check_packers.<lambda2>

[function] [call site] 00082


               traitlets.Callable

[function] [call site] 00083


               msgpack.unpackb

[function] [call site] 00084


               jupyter_client.session.json_unpacker

[function] [call site] 00085


               <builtin>.isinstance

[function] [call site] 00086


             jupyter_client.session.json_packer

[function] [call site] 00087


             traitlets.Callable

[function] [call site] 00088


             jupyter_client.session.Session._check_packers.<lambda1>

[function] [call site] 00089


             jupyter_client.session.pickle_packer

[function] [call site] 00090


             os.getpid

[function] [call site] 00091


             jupyter_client.session.Session._new_auth

[function] [call site] 00092


               hmac.HMAC

[function] [call site] 00093


             traitlets.log.get_logger

[function] [call site] 00094


             traitlets.log.get_logger.warning

[function] [call site] 00095


           jupyter_client.session.Session.msg

[function] [call site] 00096


             jupyter_client.session.Session.msg_header

[function] [call site] 00097


               jupyter_client.session.Session.msg_header

[function] [call site] 00098


             jupyter_client.session.extract_header

[function] [call site] 00099


               <builtin>.isinstance

[function] [call site] 00100


               <builtin>.dict

[function] [call site] 00101


             traitlets.Dict.copy

[function] [call site] 00102


           fdp.ConsumeBytes

[function] [call site] 00103


           <builtin>.memoryview

[function] [call site] 00104


           fdp.ConsumeBytes

[function] [call site] 00105


           <builtin>.memoryview

[function] [call site] 00106


           fdp.ConsumeBytes

[function] [call site] 00107


           <builtin>.memoryview

[function] [call site] 00108


           jupyter_server.services.kernels.connection.base.serialize_binary_message

[function] [call site] 00109


             msg.copy

[function] [call site] 00110


             msg.pop

[function] [call site] 00111


             <builtin>.list

[function] [call site] 00112


             json.dumps

[function] [call site] 00113


             buffers.insert

[function] [call site] 00114


             <builtin>.len

[function] [call site] 00115


             <builtin>.len

[function] [call site] 00116


             offsets.append

[function] [call site] 00117


             struct.pack

[function] [call site] 00118


             buffers.insert

[function] [call site] 00119


           jupyter_server.services.kernels.connection.base.deserialize_binary_message

[function] [call site] 00120


             struct.unpack

[function] [call site] 00121


             struct.unpack

[function] [call site] 00122


             <builtin>.list

[function] [call site] 00123


             offsets.append

[function] [call site] 00124


             <builtin>.zip

[function] [call site] 00125


             bufs.append

[function] [call site] 00126


             json.loads

[function] [call site] 00127


             jupyter_client.jsonutil.extract_dates

[function] [call site] 00128


               <builtin>.isinstance

[function] [call site] 00129


               dateutil.parser.isoparse.items

[function] [call site] 00130


               jupyter_client.jsonutil.extract_dates

[function] [call site] 00131


               <builtin>.isinstance

[function] [call site] 00132


               jupyter_client.jsonutil.extract_dates

[function] [call site] 00133


               <builtin>.isinstance

[function] [call site] 00134


               jupyter_client.jsonutil.parse_date

[function] [call site] 00135


                 ISO8601_PAT.match

[function] [call site] 00136


                 dateutil.parser.isoparse

[function] [call site] 00137


                 jupyter_client.jsonutil._ensure_tzinfo

[function] [call site] 00138


                   warnings.warn

[function] [call site] 00139


                   dateutil.tz.tzlocal

[function] [call site] 00140


                   dateutil.parser.isoparse.replace

[function] [call site] 00141


             jupyter_client.jsonutil.extract_dates

[function] [call site] 00142