Fuzz introspector: fuzz_cloudtask_client
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
10 27 google.cloud.tasks_v2.services.cloud_tasks.client.CloudTasksClient.__init__ call site: 00027 google.auth.transport.mtls.default_client_cert_source
8 44 google.api_core.client_logging.setup_logging call site: 00044 google.api_core.client_logging.configure_defaults
6 3 google.cloud.tasks_v2.services.cloud_tasks.client.CloudTasksClient.__init__ call site: 00003 google.api_core.client_options.from_dict
6 60 google.cloud.tasks_v2.services.cloud_tasks.client.CloudTasksClient.__init__ call site: 00060 google.auth._default.get_api_key_credentials
4 20 google.auth.transport._mtls_helper.check_use_client_cert call site: 00020 .open
3 68 google.cloud.tasks_v2.services.cloud_tasks.client.CloudTasksClient.__init__ call site: 00068 google.auth.credentials.Credentials.__init__
1 12 google.cloud.tasks_v2.services.cloud_tasks.client.CloudTasksClient.__init__ call site: 00012 google.cloud.tasks_v2.services.cloud_tasks.client.CloudTasksClient._read_environment_variables
1 18 google.auth.transport._mtls_helper.check_use_client_cert call site: 00018 os.getenv.lower
1 56 google.cloud.tasks_v2.services.cloud_tasks.client.CloudTasksClient.__init__ call site: 00056 typing.cast

Fuzzer calltree

0 ...fuzz_cloudtask_client.TestOneInput [function] [call site] 00000
1 atheris.FuzzedDataProvider [function] [call site] 00001
1 google.cloud.tasks_v2.services.cloud_tasks.client.CloudTasksClient.__init__ [function] [call site] 00002
2 <builtin>.isinstance [function] [call site] 00003
2 google.api_core.client_options.from_dict [function] [call site] 00004
3 google.api_core.client_options.ClientOptions.__init__ [function] [call site] 00005
4 warnings.warn [function] [call site] 00006
3 typing.cast.items [function] [call site] 00007
3 <builtin>.hasattr [function] [call site] 00008
3 <builtin>.setattr [function] [call site] 00009
2 google.api_core.client_options.ClientOptions.__init__ [function] [call site] 00010
2 typing.cast [function] [call site] 00011
2 <builtin>.getattr [function] [call site] 00012
2 google.cloud.tasks_v2.services.cloud_tasks.client.CloudTasksClient._read_environment_variables [function] [call site] 00013
3 google.cloud.tasks_v2.services.cloud_tasks.client.CloudTasksClient._use_client_cert_effective [function] [call site] 00014
4 <builtin>.hasattr [function] [call site] 00015
4 google.auth.transport.mtls.should_use_client_cert [function] [call site] 00016
5 google.auth.transport._mtls_helper.check_use_client_cert [function] [call site] 00017
6 os.getenv [function] [call site] 00018
6 os.getenv.lower [function] [call site] 00019
6 os.getenv [function] [call site] 00020
6 <builtin>.open [function] [call site] 00021
6 json.load [function] [call site] 00022
6 _LOGGER.debug [function] [call site] 00023
4 os.getenv [function] [call site] 00024
3 os.getenv [function] [call site] 00025
3 os.getenv [function] [call site] 00026
2 google.cloud.tasks_v2.services.cloud_tasks.client.CloudTasksClient._get_client_cert_source [function] [call site] 00027
3 google.auth.transport.mtls.has_default_client_cert_source [function] [call site] 00028
4 google.auth.transport._mtls_helper._check_config_path [function] [call site] 00029
5 os.path.expanduser [function] [call site] 00030
5 os.path.exists [function] [call site] 00031
5 _LOGGER.debug [function] [call site] 00032
4 google.auth.transport._mtls_helper._check_config_path [function] [call site] 00033
4 os.getenv [function] [call site] 00034
4 google.auth.transport._mtls_helper._check_config_path [function] [call site] 00035
3 google.auth.transport.mtls.default_client_cert_source [function] [call site] 00036
4 google.auth.transport.mtls.has_default_client_cert_source [function] [call site] 00037
2 google.cloud.tasks_v2.services.cloud_tasks.client.CloudTasksClient._get_universe_domain [function] [call site] 00038
3 universe_domain.strip [function] [call site] 00039
3 <builtin>.len [function] [call site] 00040
2 google.api_core.client_logging.initialize_logging [function] [call site] 00041
3 os.getenv [function] [call site] 00042
3 google.api_core.client_logging.setup_logging [function] [call site] 00043
4 google.api_core.client_logging.parse_logging_scopes [function] [call site] 00044
4 logging.getLogger [function] [call site] 00045
4 google.api_core.client_logging.configure_defaults [function] [call site] 00046
5 google.api_core.client_logging.logger_configured [function] [call site] 00047
5 logging.StreamHandler [function] [call site] 00048
5 logger.setLevel [function] [call site] 00049
5 logging.Formatter.__init__ [function] [call site] 00050
5 console_handler.setFormatter [function] [call site] 00051
5 logger.addHandler [function] [call site] 00052
4 logging.getLogger [function] [call site] 00053
4 google.api_core.client_logging.logger_configured [function] [call site] 00054
2 <builtin>.getattr [function] [call site] 00055
2 <builtin>.isinstance [function] [call site] 00056
2 typing.cast [function] [call site] 00057
2 google.cloud.tasks_v2.services.cloud_tasks.client.CloudTasksClient._get_api_endpoint [function] [call site] 00058
3 CloudTasksClient._DEFAULT_ENDPOINT_TEMPLATE.format [function] [call site] 00059
2 <builtin>.hasattr [function] [call site] 00060
2 google.auth._default.get_api_key_credentials [function] [call site] 00061
3 google.auth.api_key.Credentials.__init__ [function] [call site] 00062
4 <builtin>.super [function] [call site] 00063
2 CloudTasksClient.get_transport_class [function] [call site] 00064
2 <builtin>.isinstance [function] [call site] 00065
2 typing.cast [function] [call site] 00066
2 <builtin>.str [function] [call site] 00067
2 _LOGGER.isEnabledFor [function] [call site] 00068
2 _LOGGER.debug [function] [call site] 00069
2 <builtin>.hasattr [function] [call site] 00070
1 google.auth.credentials.Credentials.__init__ [function] [call site] 00071
2 <builtin>.super [function] [call site] 00072
2 google.auth._refresh_worker.RefreshThreadManager.__init__ [function] [call site] 00073
3 threading.Lock [function] [call site] 00074
1 fdp.ConsumeIntInRange [function] [call site] 00075
1 <builtin>.range [function] [call site] 00076
1 <builtin>.len [function] [call site] 00077
1 fdp.ConsumeIntInRange [function] [call site] 00078