Fuzz introspector: hoedown_fuzzer
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
12 201 parse_block call site: 00201 parse_blockcode
3 105 parse_atxheader call site: 00105 parse_htmlblock
3 111 hoedown_find_html5_block_tag call site: 00111 hoedown_find_block_tag
2 2 hoedown_buffer_new call site: 00002 fprintf
2 8 hoedown_realloc call site: 00008 fprintf
2 46 hoedown_calloc call site: 00046 fprintf
2 101 parse_atxheader call site: 00101 hoedown_buffer_put
2 115 parse_htmlblock call site: 00115 hoedown_buffer_put
2 197 parse_blockquote call site: 00197 prefix_quote
1 52 add_footnote_ref call site: 00052 free_footnote_ref
1 98 parse_attributes call site: 00098 hoedown_buffer_reset
1 138 parse_codefence call site: 00138 _isspace

Fuzzer calltree

0 LLVMFuzzerTestOneInput [function] [call site] 00000
1 hoedown_buffer_new [function] [call site] 00001
2 hoedown_malloc [function] [call site] 00002
3 fprintf [call site] 00003
3 abort [call site] 00004
2 hoedown_buffer_init [function] [call site] 00005
3 __assert_fail [call site] 00006
2 hoedown_realloc [function] [call site] 00007
3 realloc [call site] 00008
3 fprintf [call site] 00009
3 abort [call site] 00010
1 hoedown_buffer_put [function] [call site] 00011
2 __assert_fail [call site] 00012
2 hoedown_buffer_grow [function] [call site] 00013
3 __assert_fail [call site] 00014
1 hoedown_html_renderer_new [function] [call site] 00015
2 hoedown_malloc [function] [call site] 00016
2 hoedown_malloc [function] [call site] 00017
2 hoedown_hash_new [function] [call site] 00018
1 hoedown_buffer_new [function] [call site] 00019
1 hoedown_buffer_new [function] [call site] 00020
1 hoedown_document_new [function] [call site] 00021
2 __assert_fail [call site] 00022
2 hoedown_malloc [function] [call site] 00023
2 hoedown_stack_init [function] [call site] 00024
3 __assert_fail [call site] 00025
3 hoedown_stack_grow [function] [call site] 00026
4 __assert_fail [call site] 00027
4 hoedown_realloc [function] [call site] 00028
2 hoedown_stack_init [function] [call site] 00029
2 hoedown_stack_init [function] [call site] 00030
1 hoedown_document_render [function] [call site] 00031
2 hoedown_buffer_new [function] [call site] 00032
2 hoedown_buffer_grow [function] [call site] 00033
2 memcmp [call site] 00034
2 is_footnote [function] [call site] 00035
3 hoedown_buffer_new [function] [call site] 00036
3 hoedown_buffer_new [function] [call site] 00037
3 is_empty [function] [call site] 00038
3 hoedown_buffer_putc [function] [call site] 00039
4 __assert_fail [call site] 00040
4 hoedown_buffer_grow [function] [call site] 00041
3 hoedown_buffer_put [function] [call site] 00042
3 hoedown_buffer_putc [function] [call site] 00043
3 create_footnote_ref [function] [call site] 00044
4 hoedown_calloc [function] [call site] 00045
5 calloc [call site] 00046
5 fprintf [call site] 00047
5 abort [call site] 00048
4 hash_link_ref [function] [call site] 00049
5 tolower [call site] 00050
3 add_footnote_ref [function] [call site] 00051
4 hoedown_calloc [function] [call site] 00052
3 free_footnote_ref [function] [call site] 00053
4 hoedown_buffer_free [function] [call site] 00054
5 __assert_fail [call site] 00055
4 hoedown_buffer_free [function] [call site] 00056
3 hoedown_buffer_put [function] [call site] 00057
2 is_html_comment [function] [call site] 00058
2 hoedown_buffer_put [function] [call site] 00059
2 hoedown_buffer_putc [function] [call site] 00060
2 is_ref [function] [call site] 00061
3 memchr [call site] 00062
3 add_link_ref [function] [call site] 00063
4 hoedown_calloc [function] [call site] 00064
4 hash_link_ref [function] [call site] 00065
3 hoedown_buffer_new [function] [call site] 00066
3 hoedown_buffer_put [function] [call site] 00067
3 hoedown_buffer_new [function] [call site] 00068
3 hoedown_buffer_put [function] [call site] 00069
3 hoedown_buffer_new [function] [call site] 00070
3 hoedown_buffer_put [function] [call site] 00071
2 expand_tabs [function] [call site] 00072
3 hoedown_buffer_put [function] [call site] 00073
3 hoedown_buffer_putc [function] [call site] 00074
2 hoedown_buffer_putc [function] [call site] 00075
2 hoedown_buffer_grow [function] [call site] 00076
2 hoedown_buffer_putc [function] [call site] 00077
2 parse_block [function] [call site] 00078
3 is_atxheader [function] [call site] 00079
4 memchr [call site] 00080
4 is_empty_all [function] [call site] 00081
5 _isspace [function] [call site] 00082
4 memchr [call site] 00083
4 is_empty_all [function] [call site] 00084
4 parse_inline_attributes [function] [call site] 00085
5 hoedown_buffer_put [function] [call site] 00086
3 parse_atxheader [function] [call site] 00087
4 newbuf [function] [call site] 00088
5 hoedown_buffer_new [function] [call site] 00089
5 hoedown_stack_push [function] [call site] 00090
6 __assert_fail [call site] 00091
6 hoedown_stack_grow [function] [call site] 00092
4 newbuf [function] [call site] 00093
4 parse_attributes [function] [call site] 00094
5 hoedown_buffer_reset [function] [call site] 00095
6 __assert_fail [call site] 00096
5 hoedown_buffer_put [function] [call site] 00097
5 parse_attributes [function] [call site] 00098
6 hoedown_buffer_reset [function] [call site] 00099
6 hoedown_buffer_put [function] [call site] 00100
4 parse_inline [function] [call site] 00101
5 hoedown_buffer_put [function] [call site] 00102
5 hoedown_buffer_put [function] [call site] 00103
4 popbuf [function] [call site] 00104
4 popbuf [function] [call site] 00105
3 parse_userblock [function] [call site] 00106
4 hoedown_buffer_put [function] [call site] 00107
3 parse_htmlblock [function] [call site] 00108
4 hoedown_find_html5_block_tag [function] [call site] 00109
5 hash [function] [call site] 00110
5 gperf_case_strncmp [function] [call site] 00111
4 hoedown_find_block_tag [function] [call site] 00112
5 hash [function] [call site] 00113
5 gperf_case_strncmp [function] [call site] 00114
4 is_empty [function] [call site] 00115
4 hoedown_buffer_put [function] [call site] 00116
4 hoedown_buffer_putc [function] [call site] 00117
4 is_empty [function] [call site] 00118
4 script_tag_length [function] [call site] 00119
4 is_empty [function] [call site] 00120
4 strlen [call site] 00121
4 htmlblock_find_end_strict [function] [call site] 00122
5 htmlblock_find_end [function] [call site] 00123
6 htmlblock_is_end [function] [call site] 00124
7 strncasecmp [call site] 00125
7 is_empty [function] [call site] 00126
5 is_empty [function] [call site] 00127
4 strcmp [call site] 00128
4 htmlblock_find_end [function] [call site] 00129
3 is_empty [function] [call site] 00130
3 is_hrule [function] [call site] 00131
3 parse_fencedcode [function] [call site] 00132
4 newbuf [function] [call site] 00133
4 parse_codefence [function] [call site] 00134
5 is_codefence [function] [call site] 00135
5 _isspace [function] [call site] 00136
5 parse_attributes [function] [call site] 00137
5 _isspace [function] [call site] 00138
5 _isspace [function] [call site] 00139
4 popbuf [function] [call site] 00140
4 is_codefence [function] [call site] 00141
4 is_empty [function] [call site] 00142
4 popbuf [function] [call site] 00143
3 parse_table [function] [call site] 00144
4 newbuf [function] [call site] 00145
4 newbuf [function] [call site] 00146
4 newbuf [function] [call site] 00147
4 newbuf [function] [call site] 00148
4 parse_table_header [function] [call site] 00149
5 is_backslashed [function] [call site] 00150
5 _isspace [function] [call site] 00151
5 is_backslashed [function] [call site] 00152
5 parse_attributes [function] [call site] 00153
5 _isspace [function] [call site] 00154
5 is_backslashed [function] [call site] 00155
5 newbuf [function] [call site] 00156
5 hoedown_buffer_put [function] [call site] 00157
5 hoedown_calloc [function] [call site] 00158
5 is_backslashed [function] [call site] 00159
5 is_backslashed [function] [call site] 00160
5 hoedown_buffer_putc [function] [call site] 00161
5 hoedown_buffer_put [function] [call site] 00162
5 popbuf [function] [call site] 00163
5 parse_table_row [function] [call site] 00164
6 newbuf [function] [call site] 00165
6 newbuf [function] [call site] 00166
6 newbuf [function] [call site] 00167
6 parse_table_cell_line [function] [call site] 00168
7 _isspace [function] [call site] 00169
7 find_separator_char [function] [call site] 00170
8 is_backslashed [function] [call site] 00171
7 _isspace [function] [call site] 00172
7 hoedown_buffer_putc [function] [call site] 00173
7 hoedown_buffer_put [function] [call site] 00174
7 hoedown_buffer_put [function] [call site] 00175
6 is_backslashed [function] [call site] 00176
6 parse_table_cell_line [function] [call site] 00177
6 parse_inline [function] [call site] 00178
6 popbuf [function] [call site] 00179
6 popbuf [function] [call site] 00180
6 popbuf [function] [call site] 00181
5 popbuf [function] [call site] 00182
4 is_backslashed [function] [call site] 00183
4 is_backslashed [function] [call site] 00184
4 is_backslashed [function] [call site] 00185
4 is_backslashed [function] [call site] 00186
4 parse_table_row [function] [call site] 00187
4 popbuf [function] [call site] 00188
4 popbuf [function] [call site] 00189
4 popbuf [function] [call site] 00190
4 popbuf [function] [call site] 00191
3 prefix_quote [function] [call site] 00192
3 parse_blockquote [function] [call site] 00193
4 newbuf [function] [call site] 00194
4 prefix_quote [function] [call site] 00195
4 is_empty [function] [call site] 00196
4 is_empty [function] [call site] 00197
4 prefix_quote [function] [call site] 00198
4 is_empty [function] [call site] 00199
4 parse_block [function] [call site] 00200
5 prefix_code [function] [call site] 00201
5 parse_blockcode [function] [call site] 00202
6 newbuf [function] [call site] 00203
6 newbuf [function] [call site] 00204
6 prefix_code [function] [call site] 00205
6 is_empty [function] [call site] 00206
6 is_empty [function] [call site] 00207
6 hoedown_buffer_putc [function] [call site] 00208
6 hoedown_buffer_put [function] [call site] 00209
6 parse_attributes [function] [call site] 00210
6 hoedown_buffer_putc [function] [call site] 00211
6 popbuf [function] [call site] 00212
6 popbuf [function] [call site] 00213
5 prefix_uli [function] [call site] 00214
6 is_next_headerline [function] [call site] 00215
7 is_headerline [function] [call site] 00216
5 parse_list [function] [call site] 00217
6 newbuf [function] [call site] 00218
6 newbuf [function] [call site] 00219
6 parse_definition [function] [call site] 00220
7 prefix_dli [function] [call site] 00221
8 prefix_dt [function] [call site] 00222
9 is_next_headerline [function] [call site] 00223
8 is_empty [function] [call site] 00224
8 is_paragraph [function] [call site] 00225
9 newbuf [function] [call site] 00226
9 is_atxheader [function] [call site] 00227
9 parse_userblock [function] [call site] 00228
9 parse_htmlblock [function] [call site] 00229
9 is_hrule [function] [call site] 00230
9 parse_fencedcode [function] [call site] 00231
9 parse_table [function] [call site] 00232
9 prefix_quote [function] [call site] 00233
9 prefix_code [function] [call site] 00234
9 prefix_uli [function] [call site] 00235
9 prefix_oli [function] [call site] 00236
10 is_next_headerline [function] [call site] 00237
9 prefix_dli [function] [call site] 00238
10 prefix_dt [function] [call site] 00239
9 popbuf [function] [call site] 00240
7 is_empty [function] [call site] 00241
7 newbuf [function] [call site] 00242
7 newbuf [function] [call site] 00243
7 parse_attributes [function] [call site] 00244
7 parse_inline [function] [call site] 00245
7 popbuf [function] [call site] 00246
7 popbuf [function] [call site] 00247
7 parse_listitem [function] [call site] 00248
8 prefix_uli [function] [call site] 00249
8 prefix_oli [function] [call site] 00250
8 hoedown_buffer_new [function] [call site] 00251
8 hoedown_buffer_put [function] [call site] 00252
8 prefix_dt [function] [call site] 00253
8 hoedown_buffer_free [function] [call site] 00254
8 is_codefence [function] [call site] 00255
8 newbuf [function] [call site] 00256
8 newbuf [function] [call site] 00257
8 hoedown_buffer_put [function] [call site] 00258
8 newbuf [function] [call site] 00259
8 is_empty [function] [call site] 00260
8 is_codefence [function] [call site] 00261
8 prefix_uli [function] [call site] 00262
8 prefix_oli [function] [call site] 00263
8 prefix_dt [function] [call site] 00264
8 is_hrule [function] [call site] 00265
8 hoedown_buffer_putc [function] [call site] 00266
8 hoedown_buffer_put [function] [call site] 00267
8 parse_attributes [function] [call site] 00268
8 parse_block [function] [call site] 00269
9 prefix_oli [function] [call site] 00270
9 parse_list [function] [call site] 00271
10 parse_listitem [function] [call site] 00272
11 parse_block [function] [call site] 00273
12 prefix_dli [function] [call site] 00274
12 parse_list [function] [call site] 00275
13 popbuf [function] [call site] 00276
13 popbuf [function] [call site] 00277
12 parse_paragraph [function] [call site] 00278
13 is_empty [function] [call site] 00279
13 is_headerline [function] [call site] 00280
13 is_atxheader [function] [call site] 00281
13 is_hrule [function] [call site] 00282
13 prefix_quote [function] [call site] 00283
13 newbuf [function] [call site] 00284
13 parse_attributes [function] [call site] 00285
13 newbuf [function] [call site] 00286
13 parse_inline [function] [call site] 00287
13 popbuf [function] [call site] 00288
13 popbuf [function] [call site] 00289
13 newbuf [function] [call site] 00290
13 parse_inline [function] [call site] 00291
13 popbuf [function] [call site] 00292
13 newbuf [function] [call site] 00293
13 newbuf [function] [call site] 00294
13 parse_attributes [function] [call site] 00295
13 parse_inline [function] [call site] 00296
13 popbuf [function] [call site] 00297
13 popbuf [function] [call site] 00298
11 parse_block [function] [call site] 00299
11 parse_attributes [function] [call site] 00300
11 parse_inline [function] [call site] 00301
11 parse_block [function] [call site] 00302
11 parse_attributes [function] [call site] 00303
11 parse_inline [function] [call site] 00304
11 hoedown_buffer_free [function] [call site] 00305
11 popbuf [function] [call site] 00306
11 popbuf [function] [call site] 00307
11 popbuf [function] [call site] 00308
4 popbuf [function] [call site] 00309
2 parse_footnote_list [function] [call site] 00310
3 newbuf [function] [call site] 00311
3 parse_footnote_def [function] [call site] 00312
4 newbuf [function] [call site] 00313
4 parse_block [function] [call site] 00314
4 popbuf [function] [call site] 00315
3 popbuf [function] [call site] 00316
2 hoedown_buffer_free [function] [call site] 00317
2 free_link_refs [function] [call site] 00318
3 hoedown_buffer_free [function] [call site] 00319
3 hoedown_buffer_free [function] [call site] 00320
3 hoedown_buffer_free [function] [call site] 00321
2 free_footnote_list [function] [call site] 00322
3 free_footnote_ref [function] [call site] 00323
2 free_footnote_list [function] [call site] 00324
2 __assert_fail [call site] 00325
2 __assert_fail [call site] 00326
2 __assert_fail [call site] 00327
1 hoedown_buffer_free [function] [call site] 00328
1 hoedown_document_free [function] [call site] 00329
2 hoedown_buffer_free [function] [call site] 00330
2 hoedown_buffer_free [function] [call site] 00331
2 hoedown_buffer_free [function] [call site] 00332
2 hoedown_stack_uninit [function] [call site] 00333
3 __assert_fail [call site] 00334
2 hoedown_stack_uninit [function] [call site] 00335
2 hoedown_stack_uninit [function] [call site] 00336
1 hoedown_buffer_free [function] [call site] 00337
1 hoedown_buffer_free [function] [call site] 00338