1 // Copyright 2021 Code Intelligence GmbH 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 package com.example; 16 17 import com.fasterxml.jackson.databind.ObjectMapper; 18 import com.fasterxml.jackson.dataformat.cbor.CBORFactory; 19 import java.io.IOException; 20 21 // Reproduces https://github.com/FasterXML/jackson-dataformats-binary/issues/236 and 22 // https://github.com/FasterXML/jackson-databind/pull/3032 if executed with 23 // `--keep_going=3 -seed=2735196724`. 24 public class JacksonCborFuzzer { fuzzerTestOneInput(byte[] input)25 public static void fuzzerTestOneInput(byte[] input) { 26 CBORFactory factory = new CBORFactory(); 27 ObjectMapper mapper = new ObjectMapper(factory); 28 mapper.enableDefaultTyping(); 29 try { 30 mapper.readTree(input); 31 } catch (IOException ignored) { 32 } 33 } 34 } 35