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 import java.util.*; 25 26 public class DeserializeCollectionsFuzzer { fuzzerTestOneInput(FuzzedDataProvider data)27 public static void fuzzerTestOneInput(FuzzedDataProvider data) { 28 Kryo kryo = new Kryo(); 29 kryo.register(SomeClass.class); 30 31 kryo.setReferences(data.consumeBoolean()); 32 if (data.consumeBoolean()) 33 kryo.setDefaultSerializer(CompatibleFieldSerializer.class); 34 35 Input in = new Input(data.consumeRemainingAsBytes()); 36 try { 37 kryo.readObject(in, SomeClass.class); 38 } catch (KryoException e) { 39 } finally { 40 in.close(); 41 } 42 } 43 44 public static final class SomeClass { 45 List<String> _emptyList = Collections.emptyList(); 46 Set<String> _emptySet = Collections.emptySet(); 47 Map<String, String> _emptyMap = Collections.emptyMap(); 48 List<String> _singletonList = Collections.singletonList("foo"); 49 Set<String> _singletonSet = Collections.emptySet(); 50 Map<String, String> _singletonMap; 51 TreeSet<String> _treeSet; 52 TreeMap<String, Integer> _treeMap; 53 List<String> _arrayList; 54 Set<String> _hashSet; 55 Map<String, Integer> _hashMap; 56 List<Integer> _asList = Arrays.asList(1, 2, 3); 57 int[] _intArray; 58 long[] _longArray; 59 short[] _shortArray; 60 float[] _floatArray; 61 double[] _doubleArray; 62 byte[] _byteArray; 63 char[] _charArray; 64 String[] _stringArray; 65 Integer[] _integerArray; 66 BitSet _bitSet; 67 } 68 69 } 70