Fuzz introspector: zxc_fuzzer_dict
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
21 53 zxc_compress call site: 00053 zxc_decompress
9 2 zxc_dict_load call site: 00002 dict_huf_roundtrip
6 13 zxc_compress call site: 00013 zxc_write_empty_frame
4 48 zxc_compress call site: 00048 zxc_write_seek_table
3 40 zxc_compress call site: 00040 zxc_cctx_free
3 85 zxc_check_eof_header call site: 00085 zxc_check_seek_header
3 194 zxc_compress_cctx_resolved call site: 00194 zxc_write_seek_table_from_blocks
2 44 zxc_compress call site: 00044 zxc_cctx_free
2 99 zxc_dctx_decode_frame call site: 00099 zxc_decompress_chunk_wrapper
2 103 zxc_decompress call site: 00103 memcmp
2 186 zxc_compress_cctx_resolved call site: 00186 zxc_write_empty_frame
2 211 zxc_decompress_dctx call site: 00211 zxc_probe_without_dst

Fuzzer calltree

0 LLVMFuzzerTestOneInput [function] [call site] 00000
1 zxc_dict_load [function] [call site] 00001
2 zxc_dict_id [function] [call site] 00002
1 __assert_fail [call site] 00003
1 __assert_fail [call site] 00004
1 zxc_dict_get_id [function] [call site] 00005
1 __assert_fail [call site] 00006
1 zxc_dict_id [function] [call site] 00007
1 __assert_fail [call site] 00008
1 dict_huf_roundtrip [function] [call site] 00009
2 zxc_compress_bound [function] [call site] 00010
2 zxc_compress [function] [call site] 00011
3 zxc_level_clamp [function] [call site] 00012
3 zxc_dict_id [function] [call site] 00013
3 zxc_write_empty_frame [function] [call site] 00014
4 zxc_write_file_header [function] [call site] 00015
4 zxc_write_block_header [function] [call site] 00016
4 zxc_seek_table_header [function] [call site] 00017
5 zxc_write_block_header [function] [call site] 00018
4 zxc_write_file_footer [function] [call site] 00019
5 zxc_encode_footer [function] [call site] 00020
6 zxc_store_le_n [function] [call site] 00021
6 zxc_store_le_n [function] [call site] 00022
3 zxc_cctx_init [function] [call site] 00023
4 compute_cctx_layout [function] [call site] 00024
5 zxc_dctx_entropy_sizes [function] [call site] 00025
4 zxc_aligned_malloc [function] [call site] 00026
5 posix_memalign [call site] 00027
4 zxc_cctx_init_in_workspace [function] [call site] 00028
5 compute_cctx_layout [function] [call site] 00029
4 zxc_aligned_free [function] [call site] 00030
3 zxc_cctx_attach_dict_huf [function] [call site] 00031
4 zxc_huf_dict_tree_build [function] [call site] 00032
5 zxc_huf_unpack_lengths_default [function] [call site] 00033
5 zxc_pivco_tree_build [function] [call site] 00034
6 zxc_pivco_bitrev_permute [function] [call site] 00035
5 zxc_pivco_codes [function] [call site] 00036
3 zxc_cctx_free [function] [call site] 00037
4 zxc_aligned_free [function] [call site] 00038
4 zxc_aligned_free [function] [call site] 00039
3 zxc_write_file_header [function] [call site] 00040
3 zxc_cctx_free [function] [call site] 00041
3 zxc_cctx_free [function] [call site] 00042
3 zxc_cctx_free [function] [call site] 00043
3 zxc_compress_chunk_wrapper [function] [call site] 00044
3 zxc_compress_chunk_wrapper [function] [call site] 00045
3 zxc_cctx_free [function] [call site] 00046
3 zxc_cctx_free [function] [call site] 00047
3 zxc_write_block_header [function] [call site] 00048
3 zxc_write_seek_table [function] [call site] 00049
4 zxc_seek_table_size [function] [call site] 00050
4 zxc_seek_table_header [function] [call site] 00051
4 zxc_seek_write_group [function] [call site] 00052
3 zxc_write_file_footer [function] [call site] 00053
2 __assert_fail [call site] 00054
2 zxc_decompress [function] [call site] 00055
3 zxc_short_input_verdict [function] [call site] 00056
4 zxc_read_file_header [function] [call site] 00057
3 zxc_probe_without_dst [function] [call site] 00058
4 zxc_scan_container [function] [call site] 00059
5 zxc_scan_read [function] [call site] 00060
5 zxc_read_file_header [function] [call site] 00061
5 zxc_scan_frame [function] [call site] 00062
6 zxc_scan_read [function] [call site] 00063
6 zxc_short_input_verdict [function] [call site] 00064
6 zxc_scan_read [function] [call site] 00065
6 zxc_parse_file_footer [function] [call site] 00066
7 zxc_load_le_n [function] [call site] 00067
7 zxc_load_le_n [function] [call site] 00068
6 zxc_scan_read [function] [call site] 00069
6 zxc_frame_tail_len [function] [call site] 00070
6 zxc_read_frame_info [function] [call site] 00071
7 zxc_read_file_header [function] [call site] 00072
7 zxc_parse_file_footer [function] [call site] 00073
4 zxc_decompress_oneshot [function] [call site] 00074
5 zxc_dctx_decode_container [function] [call site] 00075
6 zxc_container_next [function] [call site] 00076
7 zxc_scan_read [function] [call site] 00077
7 zxc_magic_prefix_ok [function] [call site] 00078
6 zxc_dctx_decode_frame [function] [call site] 00079
7 zxc_read_file_header [function] [call site] 00080
7 zxc_dict_id [function] [call site] 00081
7 zxc_read_block_header [function] [call site] 00082
7 zxc_check_eof_header [function] [call site] 00083
8 zxc_write_block_header [function] [call site] 00084
8 memcmp [call site] 00085
7 zxc_check_seek_header [function] [call site] 00086
8 zxc_seek_table_header [function] [call site] 00087
8 memcmp [call site] 00088
7 zxc_check_file_footer [function] [call site] 00089
8 zxc_encode_footer [function] [call site] 00090
8 memcmp [call site] 00091
7 zxc_dctx_carve [function] [call site] 00092
8 zxc_cctx_free [function] [call site] 00093
8 zxc_cctx_init [function] [call site] 00094
8 zxc_ctx_sync_dict_huf [function] [call site] 00095
9 memcmp [call site] 00096
9 zxc_cctx_attach_dict_huf [function] [call site] 00097
9 zxc_cctx_attach_dict_huf [function] [call site] 00098
7 zxc_decompress_chunk_wrapper [function] [call site] 00099
7 zxc_decompress_chunk_wrapper [function] [call site] 00100
7 zxc_decompress_chunk_wrapper [function] [call site] 00101
5 zxc_cctx_free [function] [call site] 00102
3 zxc_decompress_oneshot [function] [call site] 00103
2 memcmp [call site] 00104
2 __assert_fail [call site] 00105
1 zxc_dict_get_id [function] [call site] 00106
1 zxc_max_level [function] [call site] 00107
1 zxc_train_dict [function] [call site] 00108
2 calloc [call site] 00109
2 zxc_dict_hash [function] [call site] 00110
2 zxc_dict_hash [function] [call site] 00111
2 zxc_dict_hash [function] [call site] 00112
2 zxc_dict_sort_segs_desc [function] [call site] 00113
3 zxc_dict_sift_down [function] [call site] 00114
3 zxc_dict_sift_down [function] [call site] 00115
2 zxc_dict_hash [function] [call site] 00116
2 zxc_dict_hash [function] [call site] 00117
1 __assert_fail [call site] 00118
1 zxc_train_dict_huf [function] [call site] 00119
2 zxc_cctx_init [function] [call site] 00120
2 zxc_compress_bound [function] [call site] 00121
2 zxc_cctx_free [function] [call site] 00122
2 zxc_compress_chunk_wrapper [function] [call site] 00123
2 zxc_huf_build_code_lengths [function] [call site] 00124
3 zxc_huf_build_code_lengths_default [function] [call site] 00125
4 pm_leaves_sort [function] [call site] 00126
4 calloc [call site] 00127
2 zxc_huf_nudge_code_lengths [function] [call site] 00128
3 zxc_huf_nudge_classes [function] [call site] 00129
3 zxc_huf_nudge_pf_canonical [function] [call site] 00130
3 zxc_huf_nudge_eval [function] [call site] 00131
3 pm_leaves_sort [function] [call site] 00132
3 zxc_huf_nudge_walk [function] [call site] 00133
4 zxc_huf_nudge_clamp [function] [call site] 00134
4 zxc_huf_nudge_clamp [function] [call site] 00135
4 zxc_huf_nudge_complete [function] [call site] 00136
5 zxc_huf_nudge_clamp [function] [call site] 00137
4 zxc_huf_nudge_eval [function] [call site] 00138
3 zxc_huf_nudge_assign [function] [call site] 00139
3 zxc_huf_build_code_lengths_default [function] [call site] 00140
3 zxc_huf_nudge_dp_solve [function] [call site] 00141
4 zxc_huf_nudge_dp_run_j [function] [call site] 00142
4 zxc_huf_nudge_dp_run_j [function] [call site] 00143
3 zxc_huf_nudge_classes [function] [call site] 00144
3 zxc_huf_nudge_pf_canonical [function] [call site] 00145
3 zxc_huf_nudge_eval [function] [call site] 00146
2 zxc_huf_pack_lengths [function] [call site] 00147
3 zxc_huf_pack_lengths_default [function] [call site] 00148
2 zxc_cctx_free [function] [call site] 00149
1 zxc_dict_save_bound [function] [call site] 00150
1 zxc_dict_save [function] [call site] 00151
2 zxc_dict_id [function] [call site] 00152
1 __assert_fail [call site] 00153
1 zxc_dict_load [function] [call site] 00154
1 __assert_fail [call site] 00155
1 __assert_fail [call site] 00156
1 memcmp [call site] 00157
1 __assert_fail [call site] 00158
1 memcmp [call site] 00159
1 __assert_fail [call site] 00160
1 zxc_dict_get_id [function] [call site] 00161
1 __assert_fail [call site] 00162
1 zxc_dict_save [function] [call site] 00163
1 __assert_fail [call site] 00164
1 zxc_dict_save [function] [call site] 00165
1 __assert_fail [call site] 00166
1 zxc_dict_load [function] [call site] 00167
1 __assert_fail [call site] 00168
1 zxc_dict_id [function] [call site] 00169
1 __assert_fail [call site] 00170
1 memcmp [call site] 00171
1 __assert_fail [call site] 00172
1 zxc_compress_bound [function] [call site] 00173
1 realloc [call site] 00174
1 zxc_compress [function] [call site] 00175
1 zxc_create_cctx [function] [call site] 00176
2 calloc [call site] 00177
2 zxc_cctx_base [function] [call site] 00178
3 zxc_level_clamp [function] [call site] 00179
2 zxc_cctx_init [function] [call site] 00180
1 realloc [call site] 00181
1 zxc_compress_cctx [function] [call site] 00182
2 zxc_cctx_resolve [function] [call site] 00183
3 zxc_level_clamp [function] [call site] 00184
2 zxc_compress_cctx_resolved [function] [call site] 00185
3 zxc_dict_id [function] [call site] 00186
3 zxc_write_empty_frame [function] [call site] 00187
3 zxc_cctx_free [function] [call site] 00188
3 zxc_cctx_init [function] [call site] 00189
3 zxc_ctx_sync_dict_huf [function] [call site] 00190
3 zxc_write_file_header [function] [call site] 00191
3 zxc_compress_chunk_wrapper [function] [call site] 00192
3 zxc_compress_chunk_wrapper [function] [call site] 00193
3 zxc_write_block_header [function] [call site] 00194
3 zxc_write_seek_table_from_blocks [function] [call site] 00195
4 zxc_seek_table_size [function] [call site] 00196
4 zxc_seek_table_header [function] [call site] 00197
3 zxc_write_file_footer [function] [call site] 00198
1 __assert_fail [call site] 00199
1 memcmp [call site] 00200
1 __assert_fail [call site] 00201
1 realloc [call site] 00202
1 zxc_decompress [function] [call site] 00203
1 __assert_fail [call site] 00204
1 memcmp [call site] 00205
1 __assert_fail [call site] 00206
1 zxc_create_dctx [function] [call site] 00207
2 calloc [call site] 00208
1 zxc_decompress_dctx [function] [call site] 00209
2 zxc_short_input_verdict [function] [call site] 00210
2 zxc_dctx_probe [function] [call site] 00211
3 zxc_scan_container [function] [call site] 00212
3 zxc_probe_without_dst [function] [call site] 00213
2 zxc_dctx_decode_container [function] [call site] 00214
1 __assert_fail [call site] 00215
1 memcmp [call site] 00216
1 __assert_fail [call site] 00217