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: {node_id} google.cloud.logging_v2.handlers.structured_log.StructuredLogHandler.format
5 0 EP call site: {node_id} google.cloud.logging_v2.handlers.handlers.CloudLoggingFilter._infer_source_location
5 36 google.cloud.logging_v2.handlers.structured_log.StructuredLogHandler.format call site: {node_id} google.cloud.logging_v2.handlers.handlers.setup_logging
5 54 google.cloud.logging_v2.handlers._monitored_resources.detect_resource call site: {node_id} google.cloud.logging_v2.handlers._monitored_resources._create_functions_resource
5 68 google.cloud.logging_v2.handlers._monitored_resources.detect_resource call site: {node_id} logger.handlers.clear
3 45 google.cloud.logging_v2.handlers._monitored_resources.detect_resource call site: {node_id} google.cloud.logging_v2.handlers._monitored_resources._create_app_engine_resource
3 60 google.cloud.logging_v2.handlers._monitored_resources.detect_resource call site: {node_id} google.cloud.logging_v2.handlers._monitored_resources._create_cloud_run_resource
2 7 google.cloud.logging_v2.handlers.handlers.CloudLoggingFilter._infer_source_location call site: {node_id} google.cloud.logging_v2.handlers.structured_log.StructuredLogHandler.__init__
1 23 google.cloud.logging_v2.handlers.handlers._format_and_parse_message call site: {node_id} .isinstance
1 29 google.cloud.logging_v2.handlers.handlers._format_and_parse_message call site: {node_id} passed_json_fields.copy
1 42 google.cloud.logging_v2.handlers._monitored_resources.detect_resource call site: {node_id} 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
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 google.cloud.logging_v2.handlers.handlers.CloudLoggingFilter.__init__ [function] [call site] 00011
2 logging.StreamHandler.addFilter [function] [call site] 00012
2 logging.Formatter [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 google.cloud.logging_v2.handlers.handlers._format_and_parse_message [function] [call site] 00021
3 .isinstance [function] [call site] 00023
3 .isinstance [function] [call site] 00024
3 logging.StreamHandler.format [function] [call site] 00025
3 google.cloud.logging_v2.handlers.structured_log.StructuredLogHandler.format [function] [call site] 00026
3 json.loads [function] [call site] 00027
3 .isinstance [function] [call site] 00028
3 .isinstance [function] [call site] 00029
3 passed_json_fields.copy [function] [call site] 00030
2 .isinstance [function] [call site] 00031
2 message.keys [function] [call site] 00032
2 json.dumps [function] [call site] 00034
2 json.dumps [function] [call site] 00036
1 google.cloud.logging_v2.handlers.handlers._format_and_parse_message [function] [call site] 00037
1 google.cloud.logging_v2.handlers.handlers.setup_logging [function] [call site] 00038
2 logging.getLogger [function] [call site] 00040
2 google.cloud.logging_v2.handlers._monitored_resources.detect_resource [function] [call site] 00041
3 google.cloud.logging_v2._helpers.retrieve_metadata_server [function] [call site] 00042
4 requests.get [function] [call site] 00043
3 google.cloud.logging_v2._helpers.retrieve_metadata_server [function] [call site] 00044
3 google.cloud.logging_v2.handlers._monitored_resources._create_app_engine_resource [function] [call site] 00046
4 google.cloud.logging_v2._helpers.retrieve_metadata_server [function] [call site] 00047
4 google.cloud.logging_v2._helpers.retrieve_metadata_server [function] [call site] 00048
3 google.cloud.logging_v2.handlers._monitored_resources._create_kubernetes_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
4 google.cloud.logging_v2._helpers.retrieve_metadata_server [function] [call site] 00052
3 google.cloud.logging_v2.handlers._monitored_resources._create_functions_resource [function] [call site] 00055
4 google.cloud.logging_v2._helpers.retrieve_metadata_server [function] [call site] 00056
4 google.cloud.logging_v2._helpers.retrieve_metadata_server [function] [call site] 00057
4 os.environ.get [function] [call site] 00058
4 os.environ.get [function] [call site] 00059
3 google.cloud.logging_v2.handlers._monitored_resources._create_cloud_run_resource [function] [call site] 00061
4 google.cloud.logging_v2._helpers.retrieve_metadata_server [function] [call site] 00062
4 google.cloud.logging_v2._helpers.retrieve_metadata_server [function] [call site] 00063
3 google.cloud.logging_v2.handlers._monitored_resources._create_compute_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
4 google.cloud.logging_v2._helpers.retrieve_metadata_server [function] [call site] 00067
3 google.cloud.logging_v2.handlers._monitored_resources._create_global_resource [function] [call site] 00068
2 logger.handlers.clear [function] [call site] 00069
2 logger.setLevel [function] [call site] 00070
2 logger.addHandler [function] [call site] 00071
2 logging.getLogger [function] [call site] 00072