Fuzz introspector: small_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
2 2 1 :

['exit']

2 2 test_inflate call site: 00053 /src/miniz/tests/small_fuzzer.c:93
0 271 1 :

['tdefl_compress_block']

0 271 tdefl_flush_block call site: 00018 /src/miniz/build/amalgamation/miniz.c:1330
0 0 None 6 10 test_inflate call site: 00046 /src/miniz/tests/small_fuzzer.c:85
0 0 None 0 360 tdefl_compress_normal call site: 00016 /src/miniz/build/amalgamation/miniz.c:1837
0 0 None 0 360 tdefl_compress_normal call site: 00016 /src/miniz/build/amalgamation/miniz.c:1864
0 0 None 0 198 mz_inflate call site: 00046 /src/miniz/build/amalgamation/miniz.c:467
0 0 None 0 198 mz_inflate call site: 00049 /src/miniz/build/amalgamation/miniz.c:535
0 0 None 0 5 tdefl_compress call site: 00032 /src/miniz/build/amalgamation/miniz.c:1975
0 0 None 0 3 tinfl_decompress call site: 00047 /src/miniz/build/amalgamation/miniz.c:2502
0 0 None 0 3 tinfl_decompress call site: 00047 /src/miniz/build/amalgamation/miniz.c:2507
0 0 None 0 3 tinfl_decompress call site: 00048 /src/miniz/build/amalgamation/miniz.c:2664
0 0 None 0 3 tinfl_decompress call site: 00048 /src/miniz/build/amalgamation/miniz.c:2677

Fuzzer calltree

0 LLVMFuzzerTestOneInput [function] [call site] 00000
1 mz_compressBound [function] [call site] 00001
2 mz_deflateBound [function] [call site] 00002
1 calloc [call site] 00003
1 calloc [call site] 00004
1 test_deflate [function] [call site] 00005
2 mz_deflateInit [function] [call site] 00006
3 mz_deflateInit2 [function] [call site] 00007
4 tdefl_create_comp_flags_from_zip_params [function] [call site] 00008
4 miniz_def_alloc_func [function] [call site] 00009
4 miniz_def_free_func [function] [call site] 00010
4 tdefl_init [function] [call site] 00011
2 fprintf [call site] 00012
2 mz_deflate [function] [call site] 00013
3 tdefl_compress [function] [call site] 00014
4 tdefl_flush_output_buffer [function] [call site] 00015
4 tdefl_compress_normal [function] [call site] 00016
5 tdefl_flush_block [function] [call site] 00017
6 tdefl_compress_block [function] [call site] 00018
7 tdefl_start_static_block [function] [call site] 00019
8 tdefl_optimize_huffman_table [function] [call site] 00020
9 tdefl_radix_sort_syms [function] [call site] 00021
9 tdefl_calculate_minimum_redundancy [function] [call site] 00022
9 tdefl_huffman_enforce_max_code_size [function] [call site] 00023
8 tdefl_optimize_huffman_table [function] [call site] 00024
7 tdefl_start_dynamic_block [function] [call site] 00025
8 tdefl_optimize_huffman_table [function] [call site] 00026
8 tdefl_optimize_huffman_table [function] [call site] 00027
8 tdefl_optimize_huffman_table [function] [call site] 00028
7 tdefl_compress_lz_codes [function] [call site] 00029
6 tdefl_compress_block [function] [call site] 00030
4 mz_adler32 [function] [call site] 00031
4 tdefl_flush_block [function] [call site] 00032
4 tdefl_flush_output_buffer [function] [call site] 00033
3 tdefl_get_adler32 [function] [call site] 00034
2 fprintf [call site] 00035
2 mz_deflate [function] [call site] 00036
2 fprintf [call site] 00037
2 mz_deflateEnd [function] [call site] 00038
2 fprintf [call site] 00039
1 test_inflate [function] [call site] 00040
2 mz_inflateInit [function] [call site] 00041
3 mz_inflateInit2 [function] [call site] 00042
4 miniz_def_alloc_func [function] [call site] 00043
4 miniz_def_free_func [function] [call site] 00044
2 fprintf [call site] 00045
2 mz_inflate [function] [call site] 00046
3 tinfl_decompress [function] [call site] 00047
4 tinfl_clear_tree [function] [call site] 00048
3 tinfl_decompress [function] [call site] 00049
2 fprintf [call site] 00050
2 mz_inflateEnd [function] [call site] 00051
2 fprintf [call site] 00052
2 memcmp [call site] 00053
2 fprintf [call site] 00054
2 exit [call site] 00055