Fuzz introspector: fuzz_parser
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
2 2 1 :

['abort']

2 2 llhttp__internal__run call site: 00062 /src/llhttp/build/c/llhttp.c:12411
0 0 None 128 1140 llhttp__internal__run call site: 00195 /src/llhttp/build/c/llhttp.c:16027
0 0 None 128 1140 llhttp__internal__run call site: 00195 /src/llhttp/build/c/llhttp.c:16063
0 0 None 128 1140 llhttp__internal__run call site: 00195 /src/llhttp/build/c/llhttp.c:16099
0 0 None 128 1140 llhttp__internal__run call site: 00195 /src/llhttp/build/c/llhttp.c:16197
0 0 None 128 1140 llhttp__internal__run call site: 00195 /src/llhttp/build/c/llhttp.c:16263
0 0 None 128 1140 llhttp__internal__run call site: 00214 /src/llhttp/build/c/llhttp.c:16727
0 0 None 128 1140 llhttp__internal__run call site: 00216 /src/llhttp/build/c/llhttp.c:16762
0 0 None 128 1140 llhttp__internal__run call site: 00244 /src/llhttp/build/c/llhttp.c:17134
0 0 None 128 1140 llhttp__internal__run call site: 00245 /src/llhttp/build/c/llhttp.c:17152
0 0 None 128 1140 llhttp__internal__run call site: 00288 /src/llhttp/build/c/llhttp.c:18121
0 0 None 128 1140 llhttp__internal__run call site: 00290 /src/llhttp/build/c/llhttp.c:18139

Fuzzer calltree

0 LLVMFuzzerTestOneInput [function] [call site] 00000
1 llhttp_settings_init [function] [call site] 00001
1 handle_on_message_complete [function] [call site] 00002
1 llhttp_init [function] [call site] 00003
2 llhttp__internal_init [function] [call site] 00004
1 llhttp_set_lenient_headers [function] [call site] 00005
1 llhttp_set_lenient_chunked_length [function] [call site] 00006
1 llhttp_set_lenient_keep_alive [function] [call site] 00007
1 llhttp_execute [function] [call site] 00008
2 llhttp__internal_execute [function] [call site] 00009
3 llhttp__internal__run [function] [call site] 00010
4 llhttp__after_message_complete [function] [call site] 00011
5 llhttp_should_keep_alive [function] [call site] 00012
6 llhttp_message_needs_eof [function] [call site] 00013
4 llhttp__internal__c_is_equal_upgrade [function] [call site] 00014
4 llhttp__on_message_complete [function] [call site] 00015
4 llhttp__on_chunk_complete [function] [call site] 00016
4 llhttp__internal__c_is_equal_content_length [function] [call site] 00017
4 llhttp__on_chunk_header [function] [call site] 00018
4 llhttp__on_chunk_extension_name_complete [function] [call site] 00019
4 llhttp__on_chunk_extension_name_complete [function] [call site] 00020
4 llhttp__on_chunk_extension_value_complete [function] [call site] 00021
4 llhttp__on_chunk_extension_value_complete [function] [call site] 00022
4 llhttp__on_chunk_extension_value [function] [call site] 00023
5 llhttp_set_error_reason [function] [call site] 00024
4 llhttp__on_chunk_extension_value_complete [function] [call site] 00025
4 llhttp__on_chunk_extension_name_complete [function] [call site] 00026
4 llhttp__internal__c_update_content_length [function] [call site] 00027
4 llhttp__internal__c_or_flags_1 [function] [call site] 00028
4 llhttp__after_headers_complete [function] [call site] 00029
5 llhttp_message_needs_eof [function] [call site] 00030
4 llhttp__internal__c_test_flags [function] [call site] 00031
4 llhttp__on_header_value_complete [function] [call site] 00032
4 llhttp__on_header_value [function] [call site] 00033
5 llhttp_set_error_reason [function] [call site] 00034
4 llhttp__internal__c_load_header_state [function] [call site] 00035
4 llparse__match_sequence_to_lower [function] [call site] 00036
4 abort [call site] 00037
4 llparse__match_sequence_to_lower [function] [call site] 00038
4 abort [call site] 00039
4 llparse__match_sequence_to_lower [function] [call site] 00040
4 abort [call site] 00041
4 llparse__match_sequence_to_lower_unsafe [function] [call site] 00042
4 abort [call site] 00043
4 llhttp__internal__c_load_header_state [function] [call site] 00044
4 llhttp__internal__c_test_lenient_flags [function] [call site] 00045
4 llhttp__on_header_field_complete [function] [call site] 00046
4 llparse__match_sequence_to_lower [function] [call site] 00047
4 abort [call site] 00048
4 llparse__match_sequence_to_lower [function] [call site] 00049
4 abort [call site] 00050
4 llparse__match_sequence_to_lower [function] [call site] 00051
4 abort [call site] 00052
4 llparse__match_sequence_to_lower [function] [call site] 00053
4 abort [call site] 00054
4 llparse__match_sequence_to_lower [function] [call site] 00055
4 abort [call site] 00056
4 llparse__match_sequence_to_lower [function] [call site] 00057
4 abort [call site] 00058
4 llhttp__internal__c_test_lenient_flags [function] [call site] 00059
4 llparse__match_sequence_id [function] [call site] 00060
4 abort [call site] 00061
4 llparse__match_sequence_id [function] [call site] 00062
4 abort [call site] 00063
4 llhttp__internal__c_load_method [function] [call site] 00064
4 llhttp__on_version_complete [function] [call site] 00065
4 llparse__match_sequence_id [function] [call site] 00066
4 abort [call site] 00067
4 llparse__match_sequence_id [function] [call site] 00068
4 abort [call site] 00069
4 llparse__match_sequence_id [function] [call site] 00070
4 abort [call site] 00071
4 llhttp__on_url_complete [function] [call site] 00072
4 llhttp__on_method_complete [function] [call site] 00073
4 llparse__match_sequence_id [function] [call site] 00074
4 abort [call site] 00075
4 llparse__match_sequence_id [function] [call site] 00076
4 abort [call site] 00077
4 llparse__match_sequence_id [function] [call site] 00078
4 abort [call site] 00079
4 llparse__match_sequence_id [function] [call site] 00080
4 abort [call site] 00081
4 llparse__match_sequence_id [function] [call site] 00082
4 abort [call site] 00083
4 llparse__match_sequence_id [function] [call site] 00084
4 abort [call site] 00085
4 llparse__match_sequence_id [function] [call site] 00086
4 abort [call site] 00087
4 llparse__match_sequence_id [function] [call site] 00088
4 abort [call site] 00089
4 llparse__match_sequence_id [function] [call site] 00090
4 abort [call site] 00091
4 llparse__match_sequence_id [function] [call site] 00092
4 abort [call site] 00093
4 llparse__match_sequence_id [function] [call site] 00094
4 abort [call site] 00095
4 llparse__match_sequence_id [function] [call site] 00096
4 abort [call site] 00097
4 llparse__match_sequence_id [function] [call site] 00098
4 abort [call site] 00099
4 llparse__match_sequence_id [function] [call site] 00100
4 abort [call site] 00101
4 llparse__match_sequence_id [function] [call site] 00102
4 abort [call site] 00103
4 llparse__match_sequence_id [function] [call site] 00104
4 abort [call site] 00105
4 llparse__match_sequence_id [function] [call site] 00106
4 abort [call site] 00107
4 llparse__match_sequence_id [function] [call site] 00108
4 abort [call site] 00109
4 llparse__match_sequence_id [function] [call site] 00110
4 abort [call site] 00111
4 llparse__match_sequence_id [function] [call site] 00112
4 abort [call site] 00113
4 llparse__match_sequence_id [function] [call site] 00114
4 abort [call site] 00115
4 llparse__match_sequence_id [function] [call site] 00116
4 abort [call site] 00117
4 llparse__match_sequence_id [function] [call site] 00118
4 abort [call site] 00119
4 llparse__match_sequence_id [function] [call site] 00120
4 abort [call site] 00121
4 llparse__match_sequence_id [function] [call site] 00122
4 abort [call site] 00123
4 llparse__match_sequence_id [function] [call site] 00124
4 abort [call site] 00125
4 llparse__match_sequence_id [function] [call site] 00126
4 abort [call site] 00127
4 llparse__match_sequence_id [function] [call site] 00128
4 abort [call site] 00129
4 llparse__match_sequence_id [function] [call site] 00130
4 abort [call site] 00131
4 llparse__match_sequence_id [function] [call site] 00132
4 abort [call site] 00133
4 llparse__match_sequence_id [function] [call site] 00134
4 abort [call site] 00135
4 llparse__match_sequence_id [function] [call site] 00136
4 abort [call site] 00137
4 llparse__match_sequence_id [function] [call site] 00138
4 abort [call site] 00139
4 llparse__match_sequence_id [function] [call site] 00140
4 abort [call site] 00141
4 llparse__match_sequence_id [function] [call site] 00142
4 abort [call site] 00143
4 llparse__match_sequence_id [function] [call site] 00144
4 abort [call site] 00145
4 llparse__match_sequence_id [function] [call site] 00146
4 abort [call site] 00147
4 llparse__match_sequence_id [function] [call site] 00148
4 abort [call site] 00149
4 llparse__match_sequence_id [function] [call site] 00150
4 abort [call site] 00151
4 llparse__match_sequence_id [function] [call site] 00152
4 abort [call site] 00153
4 llhttp__on_status_complete [function] [call site] 00154
4 llhttp__internal__c_update_status_code [function] [call site] 00155
4 llhttp__on_version_complete [function] [call site] 00156
4 llparse__match_sequence_id [function] [call site] 00157
4 abort [call site] 00158
4 llhttp__on_method_complete [function] [call site] 00159
4 llparse__match_sequence_id [function] [call site] 00160
4 abort [call site] 00161
4 llhttp__internal__c_update_type_1 [function] [call site] 00162
4 llparse__match_sequence_id [function] [call site] 00163
4 abort [call site] 00164
4 llhttp__internal__c_load_type [function] [call site] 00165
4 llhttp__internal__c_update_finish [function] [call site] 00166
4 llhttp__on_message_begin [function] [call site] 00167
4 abort [call site] 00168
4 llhttp__internal__c_update_initial_message_completed [function] [call site] 00169
4 llhttp__internal__c_update_finish_1 [function] [call site] 00170
4 llhttp__internal__c_update_content_length [function] [call site] 00171
4 llhttp__internal__c_update_finish_1 [function] [call site] 00172
4 llhttp__internal__c_test_lenient_flags_1 [function] [call site] 00173
4 llhttp__on_message_complete [function] [call site] 00174
4 llhttp__on_body [function] [call site] 00175
5 llhttp_set_error_reason [function] [call site] 00176
4 llhttp__internal__c_or_flags [function] [call site] 00177
4 llhttp__on_chunk_extension_name [function] [call site] 00178
5 llhttp_set_error_reason [function] [call site] 00179
4 llhttp__on_chunk_extension_name [function] [call site] 00180
4 llhttp__on_chunk_extension_value [function] [call site] 00181
4 llhttp__on_chunk_extension_value [function] [call site] 00182
4 llhttp__on_chunk_extension_value [function] [call site] 00183
4 llhttp__on_chunk_extension_value [function] [call site] 00184
4 llhttp__on_chunk_extension_name [function] [call site] 00185
4 llhttp__on_chunk_extension_name [function] [call site] 00186
4 llhttp__internal__c_mul_add_content_length [function] [call site] 00187
4 llhttp__on_body [function] [call site] 00188
4 llhttp__internal__c_update_finish_3 [function] [call site] 00189
4 llhttp__on_message_complete [function] [call site] 00190
4 llhttp__internal__c_update_upgrade [function] [call site] 00191
4 llhttp__before_headers_complete [function] [call site] 00192
4 llhttp__on_headers_complete [function] [call site] 00193
4 llhttp__internal__c_test_lenient_flags_2 [function] [call site] 00194
4 llhttp__on_chunk_complete [function] [call site] 00195
4 llhttp__internal__c_test_flags_1 [function] [call site] 00196
4 llhttp__internal__c_test_lenient_flags [function] [call site] 00197
4 llhttp__on_header_field [function] [call site] 00198
5 llhttp_set_error_reason [function] [call site] 00199
4 llhttp__internal__c_update_header_state [function] [call site] 00200
4 llhttp__internal__c_or_flags_3 [function] [call site] 00201
4 llhttp__internal__c_or_flags_4 [function] [call site] 00202
4 llhttp__internal__c_or_flags_5 [function] [call site] 00203
4 llhttp__internal__c_or_flags_6 [function] [call site] 00204
4 llhttp__internal__c_load_header_state [function] [call site] 00205
4 llhttp__internal__c_load_header_state [function] [call site] 00206
4 llhttp__internal__c_update_header_state_1 [function] [call site] 00207
4 llhttp__internal__c_update_header_state [function] [call site] 00208
4 llhttp__internal__c_load_header_state [function] [call site] 00209
4 llhttp__internal__c_or_flags_3 [function] [call site] 00210
4 llhttp__internal__c_or_flags_4 [function] [call site] 00211
4 llhttp__internal__c_or_flags_5 [function] [call site] 00212
4 llhttp__internal__c_or_flags_6 [function] [call site] 00213
4 llhttp__on_header_value [function] [call site] 00214
4 llhttp__on_header_value [function] [call site] 00215
4 llhttp__on_header_value [function] [call site] 00216
4 llhttp__internal__c_test_lenient_flags [function] [call site] 00217
4 llhttp__on_header_value [function] [call site] 00218
4 llhttp__internal__c_update_header_state [function] [call site] 00219
4 llhttp__internal__c_or_flags_3 [function] [call site] 00220
4 llhttp__internal__c_or_flags_4 [function] [call site] 00221
4 llhttp__internal__c_or_flags_5 [function] [call site] 00222
4 llhttp__internal__c_or_flags_6 [function] [call site] 00223
4 llhttp__internal__c_update_header_state_1 [function] [call site] 00224
4 llhttp__internal__c_update_header_state_3 [function] [call site] 00225
4 llhttp__internal__c_update_header_state_6 [function] [call site] 00226
4 llhttp__internal__c_update_header_state_7 [function] [call site] 00227
4 llhttp__internal__c_mul_add_content_length_1 [function] [call site] 00228
4 llhttp__on_header_value [function] [call site] 00229
4 llhttp__internal__c_or_flags_15 [function] [call site] 00230
4 llhttp__on_header_value [function] [call site] 00231
4 llhttp__internal__c_update_header_state_8 [function] [call site] 00232
4 llhttp__on_header_value [function] [call site] 00233
4 llhttp__internal__c_load_type [function] [call site] 00234
4 llhttp__internal__c_test_lenient_flags_6 [function] [call site] 00235
4 llhttp__internal__c_update_header_state_1 [function] [call site] 00236
4 llhttp__internal__c_and_flags [function] [call site] 00237
4 llhttp__on_header_value [function] [call site] 00238
4 llhttp__internal__c_test_lenient_flags_6 [function] [call site] 00239
4 llhttp__internal__c_load_type [function] [call site] 00240
4 llhttp__internal__c_test_flags_2 [function] [call site] 00241
4 llhttp__internal__c_test_flags_3 [function] [call site] 00242
4 llhttp__internal__c_or_flags_18 [function] [call site] 00243
4 llhttp__on_header_field [function] [call site] 00244
4 llhttp__on_header_field [function] [call site] 00245
4 llhttp__internal__c_update_header_state_1 [function] [call site] 00246
4 llhttp__internal__c_store_header_state [function] [call site] 00247
4 llhttp__internal__c_update_header_state_1 [function] [call site] 00248
4 llhttp__internal__c_update_http_major [function] [call site] 00249
4 llhttp__internal__c_update_http_minor [function] [call site] 00250
4 llhttp__on_url_complete [function] [call site] 00251
4 llhttp__on_url [function] [call site] 00252
5 llhttp_set_error_reason [function] [call site] 00253
4 llhttp__on_url [function] [call site] 00254
4 llhttp__on_version [function] [call site] 00255
5 llhttp_set_error_reason [function] [call site] 00256
4 llhttp__on_version [function] [call site] 00257
4 llhttp__internal__c_load_http_minor [function] [call site] 00258
4 llhttp__internal__c_load_http_minor [function] [call site] 00259
4 llhttp__internal__c_load_http_minor [function] [call site] 00260
4 llhttp__internal__c_load_http_major [function] [call site] 00261
4 llhttp__internal__c_store_http_minor [function] [call site] 00262
4 llhttp__internal__c_test_lenient_flags_8 [function] [call site] 00263
4 llhttp__on_version [function] [call site] 00264
4 llhttp__on_version [function] [call site] 00265
4 llhttp__internal__c_store_http_major [function] [call site] 00266
4 llhttp__on_version [function] [call site] 00267
4 llhttp__internal__c_load_method [function] [call site] 00268
4 llhttp__internal__c_load_method [function] [call site] 00269
4 llhttp__internal__c_load_method [function] [call site] 00270
4 llhttp__on_url [function] [call site] 00271
4 llhttp__on_url [function] [call site] 00272
4 llhttp__on_url [function] [call site] 00273
4 llhttp__on_url [function] [call site] 00274
4 llhttp__on_url [function] [call site] 00275
4 llhttp__on_url [function] [call site] 00276
4 llhttp__on_url [function] [call site] 00277
4 llhttp__on_url [function] [call site] 00278
4 llhttp__on_url [function] [call site] 00279
4 llhttp__on_url [function] [call site] 00280
4 llhttp__on_url [function] [call site] 00281
4 llhttp__on_url [function] [call site] 00282
4 llhttp__on_url [function] [call site] 00283
4 llhttp__internal__c_is_equal_method [function] [call site] 00284
4 llhttp__internal__c_store_method [function] [call site] 00285
4 llhttp__on_method [function] [call site] 00286
5 llhttp_set_error_reason [function] [call site] 00287
4 llhttp__on_status [function] [call site] 00288
5 llhttp_set_error_reason [function] [call site] 00289
4 llhttp__on_status [function] [call site] 00290
4 llhttp__internal__c_mul_add_status_code [function] [call site] 00291
4 llhttp__internal__c_mul_add_status_code [function] [call site] 00292
4 llhttp__internal__c_mul_add_status_code [function] [call site] 00293
4 llhttp__on_version [function] [call site] 00294
4 llhttp__on_version [function] [call site] 00295
4 llhttp__internal__c_load_http_minor [function] [call site] 00296
4 llhttp__internal__c_load_http_minor [function] [call site] 00297
4 llhttp__internal__c_load_http_minor [function] [call site] 00298
4 llhttp__internal__c_load_http_major [function] [call site] 00299
4 llhttp__internal__c_store_http_minor [function] [call site] 00300
4 llhttp__internal__c_test_lenient_flags_8 [function] [call site] 00301
4 llhttp__on_version [function] [call site] 00302
4 llhttp__on_version [function] [call site] 00303
4 llhttp__internal__c_store_http_major [function] [call site] 00304
4 llhttp__on_version [function] [call site] 00305
4 llhttp__internal__c_store_method [function] [call site] 00306
4 llhttp__internal__c_update_type [function] [call site] 00307
4 llhttp__on_method [function] [call site] 00308
4 llhttp__on_method [function] [call site] 00309
4 llhttp__internal__c_update_type [function] [call site] 00310
4 llhttp__internal__c_load_initial_message_completed [function] [call site] 00311
4 llhttp__on_reset [function] [call site] 00312