Fuzz introspector: inspector/source-codeminiz/tests/large_fuzzer.c
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: 00000 /src/miniz/tests/small_fuzzer.c:95
2 2 1 :

['fclose']

2 2 mz_zip_reader_init_file_v2 call site: 00000 /src/miniz/build/amalgamation/miniz.c:4143
0 268 1 :

['tdefl_compress_block']

0 268 tdefl_flush_block call site: 00017 /src/miniz/build/amalgamation/miniz.c:1325
0 231 1 :

['inflate']

4 241 test_large_inflate call site: 00052 /src/miniz/tests/large_fuzzer.c:99
0 0 None 19 19 mz_zip_writer_init_file_v2 call site: 00000 /src/miniz/build/amalgamation/miniz.c:5948
0 0 None 12 589 mz_zip_writer_add_mem_ex_v2 call site: 00000 /src/miniz/build/amalgamation/miniz.c:6297
0 0 None 12 589 mz_zip_writer_add_mem_ex_v2 call site: 00000 /src/miniz/build/amalgamation/miniz.c:6321
0 0 None 12 589 mz_zip_writer_add_mem_ex_v2 call site: 00000 /src/miniz/build/amalgamation/miniz.c:6326
0 0 None 12 583 mz_zip_writer_add_mem_ex_v2 call site: 00000 /src/miniz/build/amalgamation/miniz.c:6340
0 0 None 8 566 mz_zip_writer_add_mem_ex_v2 call site: 00000 /src/miniz/build/amalgamation/miniz.c:6378
0 0 None 8 542 mz_zip_writer_add_mem_ex_v2 call site: 00000 /src/miniz/build/amalgamation/miniz.c:6428
0 0 None 6 977 mz_zip_add_mem_to_archive_file_in_place_v2 call site: 00000 /src/miniz/build/amalgamation/miniz.c:7552

Fuzzer calltree

0 LLVMFuzzerTestOneInput [function] [call site] 00000
1 calloc [call site] 00001
1 calloc [call site] 00002
1 test_large_deflate [function] [call site] 00003
2 deflateInit [function] [call site] 00004
3 mz_deflateInit [function] [call site] 00005
4 mz_deflateInit2 [function] [call site] 00006
5 tdefl_create_comp_flags_from_zip_params [function] [call site] 00007
5 tdefl_init [function] [call site] 00008
2 fprintf [call site] 00009
2 exit [call site] 00010
2 deflate [function] [call site] 00011
3 mz_deflate [function] [call site] 00012
4 tdefl_compress [function] [call site] 00013
5 tdefl_flush_output_buffer [function] [call site] 00014
5 tdefl_compress_normal [function] [call site] 00015
6 tdefl_flush_block [function] [call site] 00016
7 tdefl_compress_block [function] [call site] 00017
8 tdefl_start_static_block [function] [call site] 00018
9 tdefl_optimize_huffman_table [function] [call site] 00019
10 tdefl_radix_sort_syms [function] [call site] 00020
10 tdefl_calculate_minimum_redundancy [function] [call site] 00021
10 tdefl_huffman_enforce_max_code_size [function] [call site] 00022
9 tdefl_optimize_huffman_table [function] [call site] 00023
8 tdefl_start_dynamic_block [function] [call site] 00024
9 tdefl_optimize_huffman_table [function] [call site] 00025
9 tdefl_optimize_huffman_table [function] [call site] 00026
9 tdefl_optimize_huffman_table [function] [call site] 00027
8 tdefl_compress_lz_codes [function] [call site] 00028
7 tdefl_compress_block [function] [call site] 00029
5 mz_adler32 [function] [call site] 00030
5 tdefl_flush_block [function] [call site] 00031
5 tdefl_flush_output_buffer [function] [call site] 00032
4 tdefl_get_adler32 [function] [call site] 00033
2 fprintf [call site] 00034
2 exit [call site] 00035
2 fprintf [call site] 00036
2 exit [call site] 00037
2 fprintf [call site] 00040
2 exit [call site] 00041
2 deflateEnd [function] [call site] 00042
3 mz_deflateEnd [function] [call site] 00043
2 fprintf [call site] 00044
2 exit [call site] 00045
1 test_large_inflate [function] [call site] 00046
2 inflateInit [function] [call site] 00047
3 mz_inflateInit [function] [call site] 00048
4 mz_inflateInit2 [function] [call site] 00049
2 fprintf [call site] 00050
2 exit [call site] 00051
2 inflate [function] [call site] 00052
3 mz_inflate [function] [call site] 00053
4 tinfl_decompress [function] [call site] 00054
5 tinfl_clear_tree [function] [call site] 00055
4 tinfl_decompress [function] [call site] 00056
2 fprintf [call site] 00057
2 exit [call site] 00058
2 inflateEnd [function] [call site] 00059
3 mz_inflateEnd [function] [call site] 00060
2 fprintf [call site] 00061
2 exit [call site] 00062