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: 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 2 2 test_large_deflate call site: 00035 /src/miniz/tests/large_fuzzer.c:54
0 0 None 2 2 test_large_deflate call site: 00039 /src/miniz/tests/large_fuzzer.c:68
0 0 None 0 812 tdefl_compress call site: 00013 /src/miniz/build/amalgamation/miniz.c:1944
0 0 None 0 360 tdefl_compress_normal call site: 00015 /src/miniz/build/amalgamation/miniz.c:1834
0 0 None 0 255 tdefl_compress_block call site: 00017 /src/miniz/build/amalgamation/miniz.c:1241
0 0 None 0 198 mz_inflate call site: 00053 /src/miniz/build/amalgamation/miniz.c:467
0 0 None 0 198 mz_inflate call site: 00056 /src/miniz/build/amalgamation/miniz.c:535
0 0 None 0 5 tdefl_compress call site: 00031 /src/miniz/build/amalgamation/miniz.c:1970
0 0 None 0 3 tinfl_decompress call site: 00054 /src/miniz/build/amalgamation/miniz.c:2491
0 0 None 0 3 tinfl_decompress call site: 00054 /src/miniz/build/amalgamation/miniz.c:2539

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