Fuzz introspector: compress_fuzzer
For issues and ideas: https://github.com/ossf/fuzz-introspector/issues

Fuzz blockers

The followings are the branches where fuzzer fails to bypass.

Unique non-covered Complexity Unique Reachable Complexities Unique Reachable Functions All non-covered Complexity All Reachable Complexity Function Name Function Callsite Blocked Branch
0 0 None 8 12 LZ4_compress_fast_extState call site: 00077 /src/lz4/lib/lz4.c:1391
0 0 None 0 0 LZ4_writeLE16 call site: 00041 /src/lz4/lib/lz4.c:454
0 0 None 0 0 LZ4_NbCommonBytes call site: 00046 /src/lz4/lib/lz4.c:584
0 0 None 0 0 LZ4_readLE16 call site: 00085 /src/lz4/lib/lz4.c:432
0 0 None 0 0 FUZZ_dataProducer_retrieve32 call site: 00004 /src/lz4/ossfuzz/fuzz_data_producer.c:23
0 0 None 0 0 FUZZ_getRange_from_uint32 call site: 00007 /src/lz4/ossfuzz/fuzz_data_producer.c:37

Fuzzer calltree

0 LLVMFuzzerTestOneInput [function] [call site] 00000
1 FUZZ_dataProducer_create [function] [call site] 00001
2 fprintf [call site] 00002
2 abort [call site] 00003
1 FUZZ_dataProducer_retrieve32 [function] [call site] 00004
1 FUZZ_dataProducer_remainingBytes [function] [call site] 00005
1 LZ4_compressBound [function] [call site] 00006
1 FUZZ_getRange_from_uint32 [function] [call site] 00007
1 fprintf [call site] 00008
1 abort [call site] 00009
1 fprintf [call site] 00010
1 abort [call site] 00011
1 LZ4_compress_default [function] [call site] 00012
2 LZ4_compress_fast [function] [call site] 00013
3 LZ4_compress_fast_extState [function] [call site] 00014
4 LZ4_initStream [function] [call site] 00015
5 LZ4_stream_t_alignment [function] [call site] 00016
5 LZ4_isAligned [function] [call site] 00017
4 __assert_fail [call site] 00018
4 LZ4_compressBound [function] [call site] 00019
4 __assert_fail [call site] 00020
4 __assert_fail [call site] 00021
4 LZ4_read_ARCH [function] [call site] 00022
4 LZ4_isLittleEndian [function] [call site] 00023
4 LZ4_read32 [function] [call site] 00024
4 __assert_fail [call site] 00025
4 __assert_fail [call site] 00026
4 LZ4_read_ARCH [function] [call site] 00027
4 LZ4_read32 [function] [call site] 00028
4 LZ4_getPositionOnHash [function] [call site] 00029
5 __assert_fail [call site] 00030
4 LZ4_read_ARCH [function] [call site] 00031
4 LZ4_read32 [function] [call site] 00032
4 __assert_fail [call site] 00033
4 LZ4_read32 [function] [call site] 00034
4 __assert_fail [call site] 00035
4 __assert_fail [call site] 00036
4 LZ4_read_ARCH [function] [call site] 00037
4 LZ4_read32 [function] [call site] 00038
4 __assert_fail [call site] 00039
4 LZ4_writeLE16 [function] [call site] 00040
5 LZ4_isLittleEndian [function] [call site] 00041
5 LZ4_write16 [function] [call site] 00042
4 LZ4_read_ARCH [function] [call site] 00043
4 LZ4_NbCommonBytes [function] [call site] 00044
5 __assert_fail [call site] 00045
5 LZ4_isLittleEndian [function] [call site] 00046
4 LZ4_read32 [function] [call site] 00047
4 LZ4_read16 [function] [call site] 00048
4 LZ4_read_ARCH [function] [call site] 00049
4 LZ4_NbCommonBytes [function] [call site] 00050
4 LZ4_read32 [function] [call site] 00051
4 LZ4_read16 [function] [call site] 00052
4 LZ4_read_ARCH [function] [call site] 00053
4 LZ4_NbCommonBytes [function] [call site] 00054
4 LZ4_read32 [function] [call site] 00055
4 LZ4_read16 [function] [call site] 00056
4 LZ4_read_ARCH [function] [call site] 00057
4 LZ4_read32 [function] [call site] 00058
4 __assert_fail [call site] 00059
4 LZ4_write32 [function] [call site] 00060
4 LZ4_read_ARCH [function] [call site] 00061
4 LZ4_read32 [function] [call site] 00062
4 __assert_fail [call site] 00063
4 __assert_fail [call site] 00064
4 LZ4_read_ARCH [function] [call site] 00065
4 LZ4_read32 [function] [call site] 00066
4 LZ4_getPositionOnHash [function] [call site] 00067
4 LZ4_read_ARCH [function] [call site] 00068
4 LZ4_read32 [function] [call site] 00069
4 __assert_fail [call site] 00070
4 LZ4_read_ARCH [function] [call site] 00071
4 LZ4_read32 [function] [call site] 00072
4 __assert_fail [call site] 00073
4 __assert_fail [call site] 00074
4 __assert_fail [call site] 00075
4 LZ4_read_ARCH [function] [call site] 00076
4 LZ4_read32 [function] [call site] 00077
4 __assert_fail [call site] 00078
4 __assert_fail [call site] 00079
4 __assert_fail [call site] 00080
1 LZ4_decompress_safe [function] [call site] 00081
2 __assert_fail [call site] 00082
2 __assert_fail [call site] 00083
2 LZ4_readLE16 [function] [call site] 00084
3 LZ4_isLittleEndian [function] [call site] 00085
3 LZ4_read16 [function] [call site] 00086
2 __assert_fail [call site] 00087
2 __assert_fail [call site] 00088
2 __assert_fail [call site] 00089
2 LZ4_write32 [function] [call site] 00090
2 __assert_fail [call site] 00091
2 __assert_fail [call site] 00092
2 LZ4_write32 [function] [call site] 00093
1 fprintf [call site] 00094
1 abort [call site] 00095
1 memcmp [call site] 00096
1 fprintf [call site] 00097
1 abort [call site] 00098
1 LZ4_compress_destSize [function] [call site] 00099
2 LZ4_compress_destSize_extState_internal [function] [call site] 00100
3 LZ4_initStream [function] [call site] 00101
3 __assert_fail [call site] 00102
3 LZ4_compressBound [function] [call site] 00103
3 LZ4_compress_fast_extState [function] [call site] 00104
3 __assert_fail [call site] 00105
3 __assert_fail [call site] 00106
1 fprintf [call site] 00107
1 abort [call site] 00108
1 LZ4_decompress_safe [function] [call site] 00109
1 fprintf [call site] 00110
1 abort [call site] 00111
1 memcmp [call site] 00112
1 fprintf [call site] 00113
1 abort [call site] 00114
1 FUZZ_dataProducer_free [function] [call site] 00115