From 2663b9925ca7aa5cfa1f55e878b536f6f601782d Mon Sep 17 00:00:00 2001 From: DavidKorczynski Date: Sat, 31 Dec 2022 12:12:22 +0000 Subject: [PATCH] simplejson: add encoder fuzzer (#9325) Signed-off-by: David Korczynski Signed-off-by: David Korczynski --- projects/simplejson/fuzz_encode.py | 42 ++++++++++++++++++++++++++++++ 1 file changed, 42 insertions(+) create mode 100644 projects/simplejson/fuzz_encode.py diff --git a/projects/simplejson/fuzz_encode.py b/projects/simplejson/fuzz_encode.py new file mode 100644 index 000000000..5e68e38b0 --- /dev/null +++ b/projects/simplejson/fuzz_encode.py @@ -0,0 +1,42 @@ +#!/usr/bin/python3 +# Copyright 2022 Google LLC +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import sys +import atheris +import simplejson + + +def TestOneInput(data): + fdp = atheris.FuzzedDataProvider(data) + original = fdp.ConsumeUnicodeNoSurrogates(sys.maxsize) + encoder = simplejson.JSONEncoder() + try: + # Anything that can be decoded shold be able to be encoded + encoder.encode(simplejson.loads(original)) + except simplejson.JSONDecodeError: + pass + except RecursionError: + pass + return + + +def main(): + atheris.instrument_all() + atheris.Setup(sys.argv, TestOneInput, enable_python_coverage=True) + atheris.Fuzz() + + +if __name__ == "__main__": + main()