Fuzz introspector: flush_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: 00016 /src/miniz/build/amalgamation/miniz.c:1325
0 0 None 4 8 test_flush call site: 00034 /src/miniz/tests/flush_fuzzer.c:53
0 0 None 0 834 tdefl_compress call site: 00012 /src/miniz/build/amalgamation/miniz.c:1944
0 0 None 0 371 tdefl_compress_normal call site: 00014 /src/miniz/build/amalgamation/miniz.c:1832
0 0 None 0 371 tdefl_compress_normal call site: 00014 /src/miniz/build/amalgamation/miniz.c:1859
0 0 None 0 0 tdefl_compress call site: 00012 /src/miniz/build/amalgamation/miniz.c:1915
0 0 None 0 0 tdefl_compress call site: 00012 /src/miniz/build/amalgamation/miniz.c:1933
0 0 None 0 0 tdefl_compress call site: 00014 /src/miniz/build/amalgamation/miniz.c:1958
0 0 None 0 0 tdefl_compress call site: 00030 /src/miniz/build/amalgamation/miniz.c:1967
0 0 None 0 0 tdefl_create_comp_flags_from_zip_params call site: 00008 /src/miniz/build/amalgamation/miniz.c:2115
0 0 None 0 0 tdefl_create_comp_flags_from_zip_params call site: 00008 /src/miniz/build/amalgamation/miniz.c:2117
0 0 None 0 0 tdefl_create_comp_flags_from_zip_params call site: 00008 /src/miniz/build/amalgamation/miniz.c:2119

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_flush [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 tdefl_init [function] [call site] 00009
2 fprintf [call site] 00010
2 mz_deflate [function] [call site] 00011
3 tdefl_compress [function] [call site] 00012
4 tdefl_flush_output_buffer [function] [call site] 00013
4 tdefl_compress_normal [function] [call site] 00014
5 tdefl_flush_block [function] [call site] 00015
6 tdefl_compress_block [function] [call site] 00016
7 tdefl_start_static_block [function] [call site] 00017
8 tdefl_optimize_huffman_table [function] [call site] 00018
9 tdefl_radix_sort_syms [function] [call site] 00019
9 tdefl_calculate_minimum_redundancy [function] [call site] 00020
9 tdefl_huffman_enforce_max_code_size [function] [call site] 00021
8 tdefl_optimize_huffman_table [function] [call site] 00022
7 tdefl_start_dynamic_block [function] [call site] 00023
8 tdefl_optimize_huffman_table [function] [call site] 00024
8 tdefl_optimize_huffman_table [function] [call site] 00025
8 tdefl_optimize_huffman_table [function] [call site] 00026
7 tdefl_compress_lz_codes [function] [call site] 00027
6 tdefl_compress_block [function] [call site] 00028
4 mz_adler32 [function] [call site] 00029
4 tdefl_flush_block [function] [call site] 00030
4 tdefl_flush_output_buffer [function] [call site] 00031
3 tdefl_get_adler32 [function] [call site] 00032
2 fprintf [call site] 00033
2 mz_deflate [function] [call site] 00034
2 fprintf [call site] 00035
2 mz_deflateEnd [function] [call site] 00036
2 fprintf [call site] 00037