1 // Copyright 2021 Google LLC 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 //////////////////////////////////////////////////////////////////////////////// 16 17 import com.code_intelligence.jazzer.api.FuzzedDataProvider; 18 19 import com.esotericsoftware.kryo.Kryo; 20 import com.esotericsoftware.kryo.io.Input; 21 import com.esotericsoftware.kryo.KryoException; 22 import com.esotericsoftware.kryo.serializers.CompatibleFieldSerializer; 23 24 public class DeserializeStringFuzzer { fuzzerTestOneInput(FuzzedDataProvider data)25 public static void fuzzerTestOneInput(FuzzedDataProvider data) { 26 Kryo kryo = new Kryo(); 27 kryo.register(SomeClass.class); 28 29 kryo.setReferences(data.consumeBoolean()); 30 if (data.consumeBoolean()) 31 kryo.setDefaultSerializer(CompatibleFieldSerializer.class); 32 33 Input in = new Input(data.consumeRemainingAsBytes()); 34 try { 35 kryo.readObject(in, SomeClass.class); 36 } catch (KryoException e) { 37 } finally { 38 in.close(); 39 } 40 } 41 42 public static final class SomeClass { 43 String value; 44 } 45 } 46