Fuzz introspector: large_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
0 268 1 :

['tdefl_compress_block']

0 268 tdefl_flush_block call site: 00014 /src/miniz/build/amalgamation/miniz.c:1325
0 229 1 :

['mz_inflate']

4 237 test_large_inflate call site: 00044 /src/miniz/tests/large_fuzzer.c:99
0 0 None 2 2 test_large_deflate call site: 00031 /src/miniz/tests/large_fuzzer.c:54
0 0 None 2 2 test_large_deflate call site: 00035 /src/miniz/tests/large_fuzzer.c:68
0 0 None 0 834 tdefl_compress call site: 00010 /src/miniz/build/amalgamation/miniz.c:1944
0 0 None 0 371 tdefl_compress_normal call site: 00012 /src/miniz/build/amalgamation/miniz.c:1834
0 0 None 0 255 tdefl_compress_block call site: 00014 /src/miniz/build/amalgamation/miniz.c:1241
0 0 None 0 198 mz_inflate call site: 00044 /src/miniz/build/amalgamation/miniz.c:467
0 0 None 0 198 mz_inflate call site: 00047 /src/miniz/build/amalgamation/miniz.c:535
0 0 None 0 5 tdefl_compress call site: 00028 /src/miniz/build/amalgamation/miniz.c:1970
0 0 None 0 3 tinfl_decompress call site: 00045 /src/miniz/build/amalgamation/miniz.c:2491
0 0 None 0 3 tinfl_decompress call site: 00046 /src/miniz/build/amalgamation/miniz.c:2605

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