Fuzz introspector: zxc_fuzzer_block
For issues and ideas: https://github.com/ossf/fuzz-introspector/issues

Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked Calltree index Parent function Callsite Largest blocked function
8 58 zxc_decompress_chunk_wrapper_safe_default call site: 00058 zxc_decode_block_glo_entropy_safe
8 101 zxc_decompress_block call site: 00101 zxc_cctx_attach_dict_huf
4 47 zxc_decode_block_glo_entropy call site: 00047 zxc_decode_lit_pivco
3 32 zxc_decode_block_glo_entropy_safe call site: 00032 zxc_huf_decode_section_dict_default
2 14 zxc_decode_block_glo_entropy_safe call site: 00014 zxc_decode_block_glo_entropy_safe
2 40 zxc_decode_block_glo_entropy call site: 00040 zxc_decode_block_glo_entropy_dict
2 79 zxc_decompress_chunk_wrapper_safe_default call site: 00079 zxc_decode_copy_match_exact
2 84 zxc_decode_block_ghi call site: 00084 zxc_decode_bounce
2 87 zxc_decode_bounce call site: 00087 zxc_decompress_block
2 142 zxc_compress_block_at call site: 00142 zxc_cctx_init
1 99 zxc_cctx_init_in_workspace call site: 00099 zxc_aligned_free
1 145 zxc_compress_block_resolved call site: 00145 zxc_compress_chunk_wrapper

Fuzzer calltree

0 LLVMFuzzerTestOneInput [function] [call site] 00000
1 zxc_max_level [function] [call site] 00001
1 zxc_create_dctx [function] [call site] 00002
2 calloc [call site] 00003
1 decode [function] [call site] 00004
2 zxc_decompress_block_safe [function] [call site] 00005
3 zxc_static_decompress_block [function] [call site] 00006
4 zxc_decompress_chunk_wrapper_safe_public [function] [call site] 00007
5 zxc_decompress_chunk_wrapper_safe_default [function] [call site] 00008
6 zxc_decode_block_glo_safe [function] [call site] 00009
7 zxc_read_glo_header_and_desc [function] [call site] 00010
7 zxc_decode_block_glo_entropy_safe [function] [call site] 00011
8 zxc_read_glo_header_and_desc [function] [call site] 00012
8 zxc_decode_block_glo_entropy_safe [function] [call site] 00013
9 zxc_decode_block_glo_entropy_dict [function] [call site] 00014
10 zxc_read_glo_header_and_desc [function] [call site] 00015
10 zxc_decode_block_glo_entropy_safe [function] [call site] 00016
11 zxc_decode_block_glo_entropy [function] [call site] 00017
12 zxc_read_glo_header_and_desc [function] [call site] 00018
12 zxc_decode_block_glo_entropy_safe [function] [call site] 00019
13 zxc_decode_lit_pivco [function] [call site] 00020
14 zxc_ensure_entropy_scratch [function] [call site] 00021
15 zxc_cctx_alloc_entropy_scratch [function] [call site] 00022
16 zxc_dctx_entropy_sizes [function] [call site] 00023
16 zxc_aligned_malloc [function] [call site] 00024
17 posix_memalign [call site] 00025
14 zxc_huf_decode_section_default [function] [call site] 00026
15 zxc_huf_unpack_lengths_default [function] [call site] 00027
15 zxc_pivco_tree_build [function] [call site] 00028
16 zxc_pivco_bitrev_permute [function] [call site] 00029
15 zxc_pivco_decode_core [function] [call site] 00030
16 zxc_pivco_unpack_flat [function] [call site] 00031
13 zxc_decode_lit_pivco_dict [function] [call site] 00032
14 zxc_ensure_entropy_scratch [function] [call site] 00033
14 zxc_huf_decode_section_dict_default [function] [call site] 00034
15 zxc_pivco_decode_core [function] [call site] 00035
13 zxc_decode_tok_pivco [function] [call site] 00036
14 zxc_ensure_entropy_scratch [function] [call site] 00037
14 zxc_huf_decode_section_default [function] [call site] 00038
13 zxc_decode_copy_match_exact [function] [call site] 00039
12 zxc_decode_block_glo_entropy_dict [function] [call site] 00040
13 zxc_decode_block_glo_entropy_dict [function] [call site] 00041
14 zxc_decode_block_glo_entropy [function] [call site] 00042
15 zxc_decode_block_glo_entropy [function] [call site] 00043
16 zxc_decode_lit_pivco [function] [call site] 00044
16 zxc_decode_lit_pivco_dict [function] [call site] 00045
16 zxc_decode_tok_pivco [function] [call site] 00046
16 zxc_decode_copy_match_exact [function] [call site] 00047
14 zxc_decode_lit_pivco [function] [call site] 00048
14 zxc_decode_lit_pivco_dict [function] [call site] 00049
14 zxc_decode_tok_pivco [function] [call site] 00050
14 zxc_decode_copy_match_exact [function] [call site] 00051
7 zxc_decode_block_glo_entropy_dict [function] [call site] 00052
7 zxc_decode_block_glo_entropy [function] [call site] 00053
7 zxc_decode_lit_pivco [function] [call site] 00054
7 zxc_decode_lit_pivco_dict [function] [call site] 00055
7 zxc_decode_tok_pivco [function] [call site] 00056
7 zxc_decode_copy_match_exact [function] [call site] 00057
6 zxc_decode_block_glo_dict [function] [call site] 00058
7 zxc_read_glo_header_and_desc [function] [call site] 00059
7 zxc_decode_block_glo_entropy_safe [function] [call site] 00060
7 zxc_decode_block_glo_entropy_dict [function] [call site] 00061
7 zxc_decode_block_glo_entropy [function] [call site] 00062
7 zxc_decode_lit_pivco [function] [call site] 00063
7 zxc_decode_lit_pivco_dict [function] [call site] 00064
7 zxc_decode_tok_pivco [function] [call site] 00065
7 zxc_decode_copy_match_exact [function] [call site] 00066
6 zxc_decode_block_glo [function] [call site] 00067
7 zxc_read_glo_header_and_desc [function] [call site] 00068
7 zxc_decode_block_glo_entropy_safe [function] [call site] 00069
7 zxc_decode_block_glo_entropy_dict [function] [call site] 00070
7 zxc_decode_block_glo_entropy [function] [call site] 00071
7 zxc_decode_lit_pivco [function] [call site] 00072
7 zxc_decode_lit_pivco_dict [function] [call site] 00073
7 zxc_decode_tok_pivco [function] [call site] 00074
7 zxc_decode_copy_match_exact [function] [call site] 00075
6 zxc_decode_block_ghi_safe [function] [call site] 00076
7 zxc_read_ghi_header [function] [call site] 00077
7 zxc_decode_copy_match_exact [function] [call site] 00078
6 zxc_decode_block_ghi_dict [function] [call site] 00079
7 zxc_read_ghi_header [function] [call site] 00080
7 zxc_decode_copy_match_exact [function] [call site] 00081
6 zxc_decode_block_ghi [function] [call site] 00082
7 zxc_read_ghi_header [function] [call site] 00083
7 zxc_decode_copy_match_exact [function] [call site] 00084
4 zxc_decompress_chunk_wrapper [function] [call site] 00085
4 zxc_decode_bounce [function] [call site] 00086
5 zxc_decompress_chunk_wrapper [function] [call site] 00087
3 zxc_decompress_block [function] [call site] 00088
4 zxc_static_decompress_block [function] [call site] 00089
4 zxc_dctx_prepare [function] [call site] 00090
5 zxc_cctx_free [function] [call site] 00091
6 zxc_aligned_free [function] [call site] 00092
6 zxc_aligned_free [function] [call site] 00093
5 zxc_cctx_init [function] [call site] 00094
6 compute_cctx_layout [function] [call site] 00095
7 zxc_dctx_entropy_sizes [function] [call site] 00096
6 zxc_aligned_malloc [function] [call site] 00097
6 zxc_cctx_init_in_workspace [function] [call site] 00098
7 compute_cctx_layout [function] [call site] 00099
6 zxc_aligned_free [function] [call site] 00100
4 zxc_ctx_sync_dict_huf [function] [call site] 00101
5 memcmp [call site] 00102
5 zxc_cctx_attach_dict_huf [function] [call site] 00103
6 zxc_huf_dict_tree_build [function] [call site] 00104
7 zxc_huf_unpack_lengths_default [function] [call site] 00105
7 zxc_pivco_tree_build [function] [call site] 00106
7 zxc_pivco_codes [function] [call site] 00107
5 zxc_cctx_attach_dict_huf [function] [call site] 00108
4 zxc_decompress_chunk_wrapper [function] [call site] 00109
4 zxc_decompress_chunk_wrapper [function] [call site] 00110
4 zxc_decode_bounce [function] [call site] 00111
3 zxc_decompress_block [function] [call site] 00112
3 zxc_dctx_prepare [function] [call site] 00113
3 zxc_decompress_chunk_wrapper_safe_public [function] [call site] 00114
2 zxc_decompress_block [function] [call site] 00115
2 __assert_fail [call site] 00116
1 decode [function] [call site] 00117
1 agree [function] [call site] 00118
2 __assert_fail [call site] 00119
2 memcmp [call site] 00120
2 __assert_fail [call site] 00121
1 static_dctx [function] [call site] 00122
2 zxc_static_dctx_workspace_size [function] [call site] 00123
3 zxc_cctx_compute_workspace_size [function] [call site] 00124
4 compute_cctx_layout [function] [call site] 00125
2 aligned_alloc [call site] 00126
2 zxc_init_static_dctx [function] [call site] 00127
3 zxc_cctx_compute_workspace_size [function] [call site] 00128
3 zxc_cctx_init_in_workspace [function] [call site] 00129
1 decode [function] [call site] 00130
1 agree [function] [call site] 00131
1 zxc_compress_block_bound [function] [call site] 00132
1 zxc_create_cctx [function] [call site] 00133
2 calloc [call site] 00134
2 zxc_cctx_base [function] [call site] 00135
3 zxc_level_clamp [function] [call site] 00136
2 zxc_cctx_init [function] [call site] 00137
1 zxc_compress_block [function] [call site] 00138
2 zxc_compress_block_at [function] [call site] 00139
3 zxc_cctx_resolve [function] [call site] 00140
4 zxc_level_clamp [function] [call site] 00141
3 zxc_compress_block_resolved [function] [call site] 00142
4 zxc_cctx_free [function] [call site] 00143
4 zxc_cctx_init [function] [call site] 00144
4 zxc_ctx_sync_dict_huf [function] [call site] 00145
4 zxc_compress_chunk_wrapper [function] [call site] 00146
4 zxc_compress_chunk_wrapper [function] [call site] 00147
1 zxc_decompress_block_bound [function] [call site] 00148
1 decode [function] [call site] 00149
1 memcmp [call site] 00150
1 __assert_fail [call site] 00151
1 decode [function] [call site] 00152
1 memcmp [call site] 00153
1 __assert_fail [call site] 00154
1 decode [function] [call site] 00155
1 memcmp [call site] 00156
1 __assert_fail [call site] 00157
1 static_dctx [function] [call site] 00158
1 decode [function] [call site] 00159
1 memcmp [call site] 00160
1 __assert_fail [call site] 00161
1 decode [function] [call site] 00162
1 __assert_fail [call site] 00163
1 zxc_free_cctx [function] [call site] 00164
2 zxc_cctx_free [function] [call site] 00165
1 zxc_free_dctx [function] [call site] 00166
2 zxc_cctx_free [function] [call site] 00167