Fuzz introspector: fuzz_handlers
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
6 13 google.cloud.logging_v2.handlers.structured_log.StructuredLogHandler.__init__ call site: 00013 google.cloud.logging_v2.handlers.structured_log.StructuredLogHandler.format
5 0 EP call site: 00000 google.cloud.logging_v2.handlers.handlers.CloudLoggingFilter._infer_source_location
5 39 google.cloud.logging_v2.handlers.structured_log.StructuredLogHandler.__init__._Formatter.format call site: 00039 google.cloud.logging_v2.handlers.handlers.setup_logging
5 57 google.cloud.logging_v2.handlers._monitored_resources.detect_resource call site: 00057 google.cloud.logging_v2.handlers._monitored_resources._create_functions_resource
5 75 google.cloud.logging_v2.handlers._monitored_resources.detect_resource call site: 00075 logger.handlers.clear
3 48 google.cloud.logging_v2.handlers._monitored_resources.detect_resource call site: 00048 google.cloud.logging_v2.handlers._monitored_resources._create_app_engine_resource
3 63 google.cloud.logging_v2.handlers._monitored_resources.detect_resource call site: 00063 google.cloud.logging_v2.handlers._monitored_resources._create_cloud_run_service_resource
3 67 google.cloud.logging_v2.handlers._monitored_resources.detect_resource call site: 00067 google.cloud.logging_v2.handlers._monitored_resources._create_cloud_run_job_resource
2 7 google.cloud.logging_v2.handlers.handlers.CloudLoggingFilter._infer_source_location call site: 00007 google.cloud.logging_v2.handlers.structured_log.StructuredLogHandler.__init__
1 23 google.cloud.logging_v2.handlers.handlers._format_and_parse_message call site: 00023 .isinstance
1 29 google.cloud.logging_v2.handlers.handlers._format_and_parse_message call site: 00029 passed_json_fields.copy
1 45 google.cloud.logging_v2.handlers._monitored_resources.detect_resource call site: 00045 requests.get

Fuzzer calltree

0 ...fuzz_handlers.TestInput [function] [call site] 00000
1 atheris.FuzzedDataProvider [function] [call site] 00001
1 fdp.ConsumeString [function] [call site] 00002
1 fdp.ConsumeString [function] [call site] 00003
1 logging.LogRecord [function] [call site] 00004
1 google.cloud.logging_v2.handlers.handlers.CloudLoggingFilter._infer_source_location [function] [call site] 00005
2 <builtin>.hasattr [function] [call site] 00006
2 <builtin>.getattr [function] [call site] 00007
1 google.cloud.logging_v2.handlers.handlers.CloudLoggingFilter.__init__ [function] [call site] 00008
1 google.cloud.logging_v2.handlers.structured_log.StructuredLogHandler.__init__ [function] [call site] 00009
2 <builtin>.super [function] [call site] 00010
2 google.cloud.logging_v2.handlers.handlers.CloudLoggingFilter.__init__ [function] [call site] 00011
2 logging.StreamHandler.addFilter [function] [call site] 00012
2 logging.Formatter.__init__ [function] [call site] 00013
1 fdp.ConsumeString [function] [call site] 00014
1 fdp.ConsumeString [function] [call site] 00015
1 fdp.ConsumeString [function] [call site] 00016
1 fdp.ConsumeString [function] [call site] 00017
1 fdp.ConsumeString [function] [call site] 00018
1 google.cloud.logging_v2.handlers.structured_log.StructuredLogHandler.format [function] [call site] 00019
2 <builtin>.super [function] [call site] 00020
2 google.cloud.logging_v2.handlers.handlers._format_and_parse_message [function] [call site] 00021
3 <builtin>.getattr [function] [call site] 00022
3 <builtin>.isinstance [function] [call site] 00023
3 <builtin>.isinstance [function] [call site] 00024
3 google.cloud.logging_v2.handlers.structured_log.StructuredLogHandler.format [function] [call site] 00025
3 logging.StreamHandler.format [function] [call site] 00026
3 json.loads [function] [call site] 00027
3 <builtin>.isinstance [function] [call site] 00028
3 <builtin>.isinstance [function] [call site] 00029
3 passed_json_fields.copy [function] [call site] 00030
2 <builtin>.isinstance [function] [call site] 00031
2 message.keys [function] [call site] 00032
2 <builtin>.list [function] [call site] 00033
2 json.dumps [function] [call site] 00034
2 <builtin>.len [function] [call site] 00035
2 json.dumps [function] [call site] 00036
2 google.cloud.logging_v2.handlers.structured_log.StructuredLogHandler.__init__._Formatter.format [function] [call site] 00037
3 record.getMessage [function] [call site] 00038
3 logging.Formatter.formatMessage [function] [call site] 00039
1 google.cloud.logging_v2.handlers.handlers._format_and_parse_message [function] [call site] 00040
1 google.cloud.logging_v2.handlers.handlers.setup_logging [function] [call site] 00041
2 <builtin>.set [function] [call site] 00042
2 logging.getLogger [function] [call site] 00043
2 google.cloud.logging_v2.handlers._monitored_resources.detect_resource [function] [call site] 00044
3 google.cloud.logging_v2._helpers.retrieve_metadata_server [function] [call site] 00045
4 requests.get [function] [call site] 00046
3 google.cloud.logging_v2._helpers.retrieve_metadata_server [function] [call site] 00047
3 <builtin>.all [function] [call site] 00048
3 google.cloud.logging_v2.handlers._monitored_resources._create_app_engine_resource [function] [call site] 00049
4 google.cloud.logging_v2._helpers.retrieve_metadata_server [function] [call site] 00050
4 google.cloud.logging_v2._helpers.retrieve_metadata_server [function] [call site] 00051
3 google.cloud.logging_v2.handlers._monitored_resources._create_kubernetes_resource [function] [call site] 00052
4 google.cloud.logging_v2._helpers.retrieve_metadata_server [function] [call site] 00053
4 google.cloud.logging_v2._helpers.retrieve_metadata_server [function] [call site] 00054
4 google.cloud.logging_v2._helpers.retrieve_metadata_server [function] [call site] 00055
3 <builtin>.all [function] [call site] 00056
3 <builtin>.all [function] [call site] 00057
3 google.cloud.logging_v2.handlers._monitored_resources._create_functions_resource [function] [call site] 00058
4 google.cloud.logging_v2._helpers.retrieve_metadata_server [function] [call site] 00059
4 google.cloud.logging_v2._helpers.retrieve_metadata_server [function] [call site] 00060
4 os.environ.get [function] [call site] 00061
4 os.environ.get [function] [call site] 00062
3 <builtin>.all [function] [call site] 00063
3 google.cloud.logging_v2.handlers._monitored_resources._create_cloud_run_service_resource [function] [call site] 00064
4 google.cloud.logging_v2._helpers.retrieve_metadata_server [function] [call site] 00065
4 google.cloud.logging_v2._helpers.retrieve_metadata_server [function] [call site] 00066
3 <builtin>.all [function] [call site] 00067
3 google.cloud.logging_v2.handlers._monitored_resources._create_cloud_run_job_resource [function] [call site] 00068
4 google.cloud.logging_v2._helpers.retrieve_metadata_server [function] [call site] 00069
4 google.cloud.logging_v2._helpers.retrieve_metadata_server [function] [call site] 00070
3 google.cloud.logging_v2.handlers._monitored_resources._create_compute_resource [function] [call site] 00071
4 google.cloud.logging_v2._helpers.retrieve_metadata_server [function] [call site] 00072
4 google.cloud.logging_v2._helpers.retrieve_metadata_server [function] [call site] 00073
4 google.cloud.logging_v2._helpers.retrieve_metadata_server [function] [call site] 00074
3 google.cloud.logging_v2.handlers._monitored_resources._create_global_resource [function] [call site] 00075
2 logger.handlers.clear [function] [call site] 00076
2 logger.setLevel [function] [call site] 00077
2 logger.addHandler [function] [call site] 00078
2 logging.getLogger [function] [call site] 00079
1 <builtin>.str [function] [call site] 00080