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
6 2 zxc_dict_load call site: 00002 zxc_dict_id
5 92 zxc_compress call site: 00092 zxc_huf_dict_tree_build
5 123 zxc_decompress_frame call site: 00123 zxc_cctx_free
5 131 zxc_decompress_dispatch_init call site: 00131 zxc_decompress_chunk_wrapper
4 102 zxc_compress call site: 00102 zxc_compress_chunk_wrapper
3 98 zxc_compress call site: 00098 zxc_cctx_free
3 108 zxc_compress call site: 00108 zxc_write_seek_table
1 24 zxc_cctx_init call site: 00024 zxc_dctx_entropy_sizes
1 29 zxc_cctx_init_in_workspace call site: 00029 zxc_aligned_free
1 31 zxc_train_dict_huf call site: 00031 zxc_cctx_free
1 117 zxc_decompress_frame call site: 00117 zxc_cctx_free
1 119 zxc_decompress_frame call site: 00119 zxc_cctx_free

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 zxc_dict_get_id [function] [call site] 00009
1 zxc_max_level [function] [call site] 00010
1 zxc_train_dict [function] [call site] 00011
2 calloc [call site] 00012
2 zxc_dict_hash [function] [call site] 00013
2 zxc_dict_hash [function] [call site] 00014
2 zxc_dict_hash [function] [call site] 00015
2 zxc_dict_sort_segs_desc [function] [call site] 00016
3 zxc_dict_sift_down [function] [call site] 00017
3 zxc_dict_sift_down [function] [call site] 00018
2 zxc_dict_hash [function] [call site] 00019
2 zxc_dict_hash [function] [call site] 00020
1 __assert_fail [call site] 00021
1 zxc_train_dict_huf [function] [call site] 00022
2 zxc_cctx_init [function] [call site] 00023
3 compute_cctx_layout [function] [call site] 00024
4 zxc_dctx_entropy_sizes [function] [call site] 00025
3 zxc_aligned_malloc [function] [call site] 00026
4 posix_memalign [call site] 00027
3 zxc_cctx_init_in_workspace [function] [call site] 00028
4 compute_cctx_layout [function] [call site] 00029
3 zxc_aligned_free [function] [call site] 00030
2 zxc_compress_bound [function] [call site] 00031
2 zxc_cctx_free [function] [call site] 00032
3 zxc_aligned_free [function] [call site] 00033
3 zxc_aligned_free [function] [call site] 00034
2 zxc_compress_chunk_wrapper [function] [call site] 00035
3 zxc_compress_dispatch_init [function] [call site] 00036
4 zxc_select_variants [function] [call site] 00037
5 zxc_detect_cpu_features [function] [call site] 00038
2 zxc_huf_build_code_lengths [function] [call site] 00039
3 zxc_huf_build_code_lengths_default [function] [call site] 00040
4 pm_leaves_sort [function] [call site] 00041
4 calloc [call site] 00042
2 zxc_huf_nudge_code_lengths [function] [call site] 00043
3 zxc_huf_nudge_classes [function] [call site] 00044
3 zxc_huf_nudge_pf_canonical [function] [call site] 00045
3 zxc_huf_nudge_eval [function] [call site] 00046
3 pm_leaves_sort [function] [call site] 00047
3 zxc_huf_nudge_walk [function] [call site] 00048
4 zxc_huf_nudge_clamp [function] [call site] 00049
4 zxc_huf_nudge_clamp [function] [call site] 00050
4 zxc_huf_nudge_complete [function] [call site] 00051
5 zxc_huf_nudge_clamp [function] [call site] 00052
4 zxc_huf_nudge_eval [function] [call site] 00053
3 zxc_huf_nudge_assign [function] [call site] 00054
3 zxc_huf_build_code_lengths_default [function] [call site] 00055
3 zxc_huf_nudge_dp_solve [function] [call site] 00056
4 zxc_huf_nudge_dp_run_j [function] [call site] 00057
4 zxc_huf_nudge_dp_run_j [function] [call site] 00058
3 zxc_huf_nudge_classes [function] [call site] 00059
3 zxc_huf_nudge_pf_canonical [function] [call site] 00060
3 zxc_huf_nudge_eval [function] [call site] 00061
2 zxc_huf_pack_lengths [function] [call site] 00062
3 zxc_huf_pack_lengths_default [function] [call site] 00063
2 zxc_cctx_free [function] [call site] 00064
1 zxc_dict_save_bound [function] [call site] 00065
1 zxc_dict_save [function] [call site] 00066
2 zxc_dict_id [function] [call site] 00067
1 __assert_fail [call site] 00068
1 zxc_dict_load [function] [call site] 00069
1 __assert_fail [call site] 00070
1 __assert_fail [call site] 00071
1 memcmp [call site] 00072
1 __assert_fail [call site] 00073
1 memcmp [call site] 00074
1 __assert_fail [call site] 00075
1 zxc_dict_get_id [function] [call site] 00076
1 __assert_fail [call site] 00077
1 zxc_dict_save [function] [call site] 00078
1 __assert_fail [call site] 00079
1 zxc_dict_save [function] [call site] 00080
1 __assert_fail [call site] 00081
1 zxc_dict_load [function] [call site] 00082
1 __assert_fail [call site] 00083
1 memcmp [call site] 00084
1 __assert_fail [call site] 00085
1 zxc_compress_bound [function] [call site] 00086
1 realloc [call site] 00087
1 zxc_compress [function] [call site] 00088
2 zxc_level_clamp [function] [call site] 00089
2 zxc_dict_id [function] [call site] 00090
2 zxc_cctx_init [function] [call site] 00091
2 zxc_cctx_attach_dict_huf [function] [call site] 00092
3 zxc_huf_dict_tree_build [function] [call site] 00093
4 zxc_huf_unpack_lengths_default [function] [call site] 00094
4 zxc_pivco_tree_build [function] [call site] 00095
4 zxc_pivco_decode_aux_build [function] [call site] 00096
2 zxc_cctx_free [function] [call site] 00097
2 zxc_write_file_header [function] [call site] 00098
2 zxc_cctx_free [function] [call site] 00099
2 zxc_cctx_free [function] [call site] 00100
2 zxc_cctx_free [function] [call site] 00101
2 zxc_compress_chunk_wrapper [function] [call site] 00102
2 zxc_compress_chunk_wrapper [function] [call site] 00103
2 zxc_cctx_free [function] [call site] 00104
2 realloc [call site] 00105
2 zxc_cctx_free [function] [call site] 00106
2 zxc_cctx_free [function] [call site] 00107
2 zxc_write_block_header [function] [call site] 00108
2 zxc_write_seek_table [function] [call site] 00109
3 zxc_seek_table_size [function] [call site] 00110
3 zxc_write_block_header [function] [call site] 00111
2 zxc_write_file_footer [function] [call site] 00112
1 realloc [call site] 00113
1 zxc_decompress [function] [call site] 00114
2 zxc_decompress_frame [function] [call site] 00115
3 zxc_read_file_header [function] [call site] 00116
3 zxc_cctx_init [function] [call site] 00117
3 zxc_cctx_free [function] [call site] 00118
3 zxc_dict_id [function] [call site] 00119
3 zxc_cctx_free [function] [call site] 00120
3 zxc_cctx_attach_dict_huf [function] [call site] 00121
3 zxc_cctx_free [function] [call site] 00122
3 zxc_read_block_header [function] [call site] 00123
3 zxc_cctx_free [function] [call site] 00124
3 zxc_cctx_free [function] [call site] 00125
3 zxc_cctx_free [function] [call site] 00126
3 zxc_cctx_free [function] [call site] 00127
3 zxc_cctx_free [function] [call site] 00128
3 zxc_decompress_chunk_wrapper [function] [call site] 00129
4 zxc_decompress_dispatch_init [function] [call site] 00130
5 zxc_select_variants [function] [call site] 00131
3 zxc_cctx_free [function] [call site] 00132
3 zxc_decompress_chunk_wrapper [function] [call site] 00133
3 zxc_decompress_chunk_wrapper [function] [call site] 00134
3 zxc_cctx_free [function] [call site] 00135
3 zxc_cctx_free [function] [call site] 00136
3 zxc_cctx_free [function] [call site] 00137
1 __assert_fail [call site] 00138
1 memcmp [call site] 00139
1 __assert_fail [call site] 00140