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
0 271 1 :

['tdefl_compress_block']

0 271 tdefl_flush_block call site: 00018 /src/miniz/build/amalgamation/miniz.c:1330
0 0 None 4 8 test_flush call site: 00036 /src/miniz/tests/flush_fuzzer.c:52
0 0 None 0 812 tdefl_compress call site: 00014 /src/miniz/build/amalgamation/miniz.c:1949
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 0 tdefl_compress call site: 00014 /src/miniz/build/amalgamation/miniz.c:1920
0 0 None 0 0 tdefl_compress call site: 00014 /src/miniz/build/amalgamation/miniz.c:1938
0 0 None 0 0 tdefl_compress call site: 00016 /src/miniz/build/amalgamation/miniz.c:1963
0 0 None 0 0 tdefl_compress call site: 00032 /src/miniz/build/amalgamation/miniz.c:1972
0 0 None 0 0 tdefl_create_comp_flags_from_zip_params call site: 00008 /src/miniz/build/amalgamation/miniz.c:2122
0 0 None 0 0 tdefl_create_comp_flags_from_zip_params call site: 00008 /src/miniz/build/amalgamation/miniz.c:2124
0 0 None 0 0 tdefl_create_comp_flags_from_zip_params call site: 00008 /src/miniz/build/amalgamation/miniz.c:2126

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 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