Fuzz introspector: InputStreamFuzzer
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
88 0 EP call site: 00000 [org.apache.commons.io.input.CircularInputStream].validate(byte[])

Fuzzer calltree

0 [InputStreamFuzzer].fuzzerTestOneInput(com.code_intelligence.jazzer.api.FuzzedDataProvider) [function] [call site] 00000
1 [com.code_intelligence.jazzer.api.FuzzedDataProvider].remainingBytes() [function] [call site] 00001
1 [com.code_intelligence.jazzer.api.FuzzedDataProvider].consumeBoolean() [function] [call site] 00002
1 [com.code_intelligence.jazzer.api.FuzzedDataProvider].consumeInt(int,int) [function] [call site] 00003
1 [com.code_intelligence.jazzer.api.FuzzedDataProvider].consumeRemainingAsBytes() [function] [call site] 00004
1 [java.io.ByteArrayInputStream].<init>(byte[]) [function] [call site] 00005
1 [org.apache.commons.io.input.buffer.PeekableInputStream].<init>(java.io.ByteArrayInputStream) [function] [call site] 00006
1 [org.apache.commons.io.input.buffer.PeekableInputStream].peek(byte[]) [function] [call site] 00007
2 [java.util.Objects].requireNonNull(byte[],String) [function] [call site] 00008
2 [org.apache.commons.io.input.buffer.PeekableInputStream].peek(byte[],int,org.apache.commons.io.input.buffer.PeekableInputStream) [function] [call site] 00009
1 [org.apache.commons.io.input.AutoCloseInputStream].builder() [function] [call site] 00010
2 [org.apache.commons.io.input.ProxyInputStreamTest.ProxyInputStreamFixture.Builder].<init>() [function] [call site] 00011
1 [org.apache.commons.io.input.ProxyInputStreamTest.ProxyInputStreamFixture.Builder].setInputStream(java.io.ByteArrayInputStream) [function] [call site] 00012
1 [InputStreamFuzzer].get() [function] [call site] 00013
1 [org.apache.commons.io.input.BOMInputStream].builder() [function] [call site] 00014
2 [org.apache.commons.io.input.ProxyInputStreamTest.ProxyInputStreamFixture.Builder].<init>() [function] [call site] 00015
1 [org.apache.commons.io.input.ProxyInputStreamTest.ProxyInputStreamFixture.Builder].setInputStream(java.io.ByteArrayInputStream) [function] [call site] 00016
1 [InputStreamFuzzer].setByteOrderMarks() [function] [call site] 00017
1 [InputStreamFuzzer].setInclude(boolean) [function] [call site] 00018
1 [InputStreamFuzzer].get() [function] [call site] 00019
1 [org.apache.commons.io.input.BoundedInputStream].<init>(java.io.ByteArrayInputStream) [function] [call site] 00020
1 [org.apache.commons.io.input.CharSequenceInputStream].builder() [function] [call site] 00021
2 [org.apache.commons.io.input.ProxyInputStreamTest.ProxyInputStreamFixture.Builder].<init>() [function] [call site] 00022
1 [org.apache.commons.io.input.ProxyInputStreamTest.ProxyInputStreamFixture.Builder].setInputStream(java.io.ByteArrayInputStream) [function] [call site] 00023
1 [java.nio.charset.Charset].defaultCharset() [function] [call site] 00024
1 [InputStreamFuzzer].setCharset(InputStreamFuzzer) [function] [call site] 00025
1 [InputStreamFuzzer].get() [function] [call site] 00026
1 [org.apache.commons.io.input.CircularInputStream].<init>(byte[],long) [function] [call site] 00027
2 [org.apache.commons.io.input.CircularInputStream].validate(byte[]) [function] [call site] 00028
3 [java.util.Objects].requireNonNull(byte[],String) [function] [call site] 00029
3 [IllegalArgumentException].<init>(String) [function] [call site] 00030
2 [IllegalArgumentException].<init>(String) [function] [call site] 00031
1 [org.apache.commons.io.input.ClassLoaderObjectInputStream].<init>(InputStreamFuzzer,java.io.ByteArrayInputStream) [function] [call site] 00032
1 [org.apache.commons.io.input.CloseShieldInputStream].wrap(java.io.ByteArrayInputStream) [function] [call site] 00033
1 [org.apache.commons.io.input.CountingInputStream].<init>(java.io.ByteArrayInputStream) [function] [call site] 00034
1 [org.apache.commons.io.input.DemuxInputStream].<init>() [function] [call site] 00035
2 [InheritableThreadLocal].<init>() [function] [call site] 00036
1 [org.apache.commons.io.input.DemuxInputStream].bindStream(java.io.ByteArrayInputStream) [function] [call site] 00037
1 [org.apache.commons.io.input.InfiniteCircularInputStream].<init>(byte[]) [function] [call site] 00038
2 [org.apache.commons.io.input.CircularInputStream].<init>(byte[]) [function] [call site] 00039
1 [org.apache.commons.io.input.MarkShieldInputStream].<init>(java.io.ByteArrayInputStream) [function] [call site] 00040
1 [org.apache.commons.io.input.MemoryMappedFileInputStream].builder() [function] [call site] 00041
2 [org.apache.commons.io.input.ProxyInputStreamTest.ProxyInputStreamFixture.Builder].<init>() [function] [call site] 00042
1 [org.apache.commons.io.input.ProxyInputStreamTest.ProxyInputStreamFixture.Builder].setInputStream(java.io.ByteArrayInputStream) [function] [call site] 00043
1 [InputStreamFuzzer].get() [function] [call site] 00044
1 [org.apache.commons.io.input.MessageDigestInputStream].builder() [function] [call site] 00045
2 [org.apache.commons.io.input.ProxyInputStreamTest.ProxyInputStreamFixture.Builder].<init>() [function] [call site] 00046
1 [org.apache.commons.io.input.ProxyInputStreamTest.ProxyInputStreamFixture.Builder].setInputStream(java.io.ByteArrayInputStream) [function] [call site] 00047
1 [InputStreamFuzzer].setMessageDigest(String) [function] [call site] 00048
1 [InputStreamFuzzer].get() [function] [call site] 00049
1 [org.apache.commons.io.input.NullInputStream].<init>() [function] [call site] 00050
2 [org.apache.commons.io.input.NullInputStream].<init>() [function] [call site] 00051
2 [org.apache.commons.io.input.NullInputStream].<init>(int,boolean,boolean) [function] [call site] 00052
1 [org.apache.commons.io.input.QueueInputStream].builder() [function] [call site] 00053
2 [org.apache.commons.io.input.ProxyInputStreamTest.ProxyInputStreamFixture.Builder].<init>() [function] [call site] 00054
1 [org.apache.commons.io.input.ProxyInputStreamTest.ProxyInputStreamFixture.Builder].setInputStream(java.io.ByteArrayInputStream) [function] [call site] 00055
1 [InputStreamFuzzer].setBlockingQueue(null) [function] [call site] 00056
1 [InputStreamFuzzer].setTimeout(null) [function] [call site] 00057
1 [InputStreamFuzzer].get() [function] [call site] 00058
1 [org.apache.commons.io.input.ReadAheadInputStream].builder() [function] [call site] 00059
2 [org.apache.commons.io.input.ProxyInputStreamTest.ProxyInputStreamFixture.Builder].<init>() [function] [call site] 00060
1 [org.apache.commons.io.input.ProxyInputStreamTest.ProxyInputStreamFixture.Builder].setInputStream(java.io.ByteArrayInputStream) [function] [call site] 00061
1 [InputStreamFuzzer].get() [function] [call site] 00062
1 [org.apache.commons.io.input.SwappedDataInputStream].<init>(java.io.ByteArrayInputStream) [function] [call site] 00063
1 [org.apache.commons.io.input.TaggedInputStream].<init>(java.io.ByteArrayInputStream) [function] [call site] 00064
1 [java.io.ByteArrayOutputStream].<init>(InputStreamFuzzer) [function] [call site] 00065
1 [org.apache.commons.io.input.TeeInputStream].<init>(java.io.ByteArrayInputStream,java.io.ByteArrayOutputStream,boolean) [function] [call site] 00066
1 [org.apache.commons.io.input.UncheckedFilterInputStream].builder() [function] [call site] 00067
2 [org.apache.commons.io.input.ProxyInputStreamTest.ProxyInputStreamFixture.Builder].<init>() [function] [call site] 00068
1 [org.apache.commons.io.input.ProxyInputStreamTest.ProxyInputStreamFixture.Builder].setInputStream(java.io.ByteArrayInputStream) [function] [call site] 00069
1 [InputStreamFuzzer].get() [function] [call site] 00070
1 [org.apache.commons.io.input.UnixLineEndingInputStream].<init>(java.io.ByteArrayInputStream,boolean) [function] [call site] 00071
1 [org.apache.commons.io.input.UnsynchronizedBufferedInputStream].builder() [function] [call site] 00072
1 [InputStreamFuzzer].setInputStream(java.io.ByteArrayInputStream) [function] [call site] 00073
1 [InputStreamFuzzer].get() [function] [call site] 00074
1 [org.apache.commons.io.input.UnsynchronizedByteArrayInputStream].builder() [function] [call site] 00075
2 [org.apache.commons.io.input.ProxyInputStreamTest.ProxyInputStreamFixture.Builder].<init>() [function] [call site] 00076
1 [org.apache.commons.io.input.ProxyInputStreamTest.ProxyInputStreamFixture.Builder].setByteArray(byte[]) [function] [call site] 00077
1 [InputStreamFuzzer].get() [function] [call site] 00078
1 [org.apache.commons.io.input.UnsynchronizedFilterInputStream].builder() [function] [call site] 00079
2 [org.apache.commons.io.input.ProxyInputStreamTest.ProxyInputStreamFixture.Builder].<init>() [function] [call site] 00080
1 [org.apache.commons.io.input.ProxyInputStreamTest.ProxyInputStreamFixture.Builder].setByteArray(byte[]) [function] [call site] 00081
1 [InputStreamFuzzer].get() [function] [call site] 00082
1 [org.apache.commons.io.input.WindowsLineEndingInputStream].<init>(java.io.ByteArrayInputStream,boolean) [function] [call site] 00083
1 [org.apache.commons.io.serialization.ValidatingObjectInputStream].<init>(java.io.ByteArrayInputStream) [function] [call site] 00084
1 [org.apache.commons.io.serialization.ValidatingObjectInputStream].reset() [function] [call site] 00085
1 [org.apache.commons.io.serialization.ValidatingObjectInputStream].available() [function] [call site] 00086
1 [org.apache.commons.io.serialization.ValidatingObjectInputStream].read(InputStreamFuzzer,int,int) [function] [call site] 00087
1 [org.apache.commons.io.serialization.ValidatingObjectInputStream].close() [function] [call site] 00088