Fuzz introspector: request_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
438 0 EP call site: 00000 fuzz_parse_http_request

Fuzzer calltree

0 LLVMFuzzerTestOneInput [function] [call site] 00000
1 fuzz_parse_http_request [function] [call site] 00001
2 coro_new [function] [call site] 00002
3 sysconf [call site] 00003
3 mmap64 [call site] 00004
3 sysconf [call site] 00005
3 set_vma_anon_name [function] [call site] 00006
4 __errno_location [call site] 00007
4 prctl [call site] 00008
4 __errno_location [call site] 00009
3 lwan_aligned_alloc [function] [call site] 00010
4 __assert_fail [call site] 00011
4 __assert_fail [call site] 00012
4 posix_memalign [call site] 00013
3 sysconf [call site] 00014
3 munmap [call site] 00015
3 coro_defer_array_init [function] [call site] 00016
3 arena_init [function] [call site] 00017
4 ptr_array_init [function] [call site] 00018
3 coro_reset [function] [call site] 00019
4 coro_deferred_run [function] [call site] 00020
4 arena_reset [function] [call site] 00021
5 arena_init [function] [call site] 00022
4 coro_defer_array_reset [function] [call site] 00023
5 lwan_array_reset [function] [call site] 00024
4 sysconf [call site] 00025
2 useless_coro_for_fuzzing [function] [call site] 00026
2 lwan_job_thread_init [function] [call site] 00027
3 __assert_fail [call site] 00028
3 lwan_log_debug_debug [function] [call site] 00029
4 log_out [function] [call site] 00030
5 start_color [function] [call site] 00031
6 log_index [function] [call site] 00032
5 end_color [function] [call site] 00033
5 __errno_location [call site] 00034
5 flockfile [call site] 00035
5 strlen [call site] 00036
5 __xpg_basename [call site] 00037
5 get_thread_emoji [function] [call site] 00038
5 printf [call site] 00039
5 gettid_cached [function] [call site] 00040
6 gettid [call site] 00041
5 printf [call site] 00042
5 printf [call site] 00043
5 printf [call site] 00044
5 gettid_cached [function] [call site] 00045
5 printf [call site] 00046
5 fwrite_unlocked [call site] 00047
5 vprintf [call site] 00048
5 strerror_thunk_r [function] [call site] 00049
6 strerror_r [call site] 00050
5 printf [call site] 00051
5 fwrite_unlocked [call site] 00052
5 funlockfile [call site] 00053
5 __errno_location [call site] 00054
3 list_head_init [function] [call site] 00055
3 pthread_self [call site] 00056
3 pthread_setschedparam [call site] 00057
3 lwan_log_perror_debug [function] [call site] 00058
2 lwan_http_authorize_init [function] [call site] 00060
3 cache_create [function] [call site] 00061
4 cache_create_full [function] [call site] 00062
5 __assert_fail [call site] 00063
5 __assert_fail [call site] 00064
5 __assert_fail [call site] 00065
5 calloc [call site] 00066
5 pthread_rwlock_init [call site] 00067
5 pthread_rwlock_init [call site] 00068
5 list_head_init [function] [call site] 00069
5 lwan_job_add [function] [call site] 00070
6 __assert_fail [call site] 00071
6 calloc [call site] 00072
6 lwan_log_critical_perror_debug [function] [call site] 00073
7 abort [call site] 00075
6 pthread_mutex_lock [call site] 00076
6 list_add [function] [call site] 00077
7 list_check [function] [call site] 00078
8 list_check_node [function] [call site] 00079
9 is_poisoned [function] [call site] 00080
10 __assert_fail [call site] 00081
10 __assert_fail [call site] 00082
10 __assert_fail [call site] 00083
10 __assert_fail [call site] 00084
9 corrupt [function] [call site] 00085
10 fprintf [call site] 00086
10 abort [call site] 00087
6 pthread_mutex_unlock [call site] 00090
6 lwan_log_warning_debug [function] [call site] 00091
5 cache_pruner_job [function] [call site] 00093
6 pthread_rwlock_trywrlock [call site] 00094
6 list_empty [function] [call site] 00095
7 list_check [function] [call site] 00096
6 pthread_rwlock_unlock [call site] 00097
6 lwan_log_perror_debug [function] [call site] 00098
6 list_head_init [function] [call site] 00099
6 list_append_list [function] [call site] 00100
7 list_check [function] [call site] 00101
7 list_check [function] [call site] 00102
7 list_del [function] [call site] 00103
8 list_check_node [function] [call site] 00104
8 list_poison_node [function] [call site] 00105
7 list_head_init [function] [call site] 00106
6 list_head_init [function] [call site] 00107
6 pthread_rwlock_unlock [call site] 00108
6 lwan_log_perror_debug [function] [call site] 00109
6 clock_gettime [call site] 00110
6 lwan_log_perror_debug [function] [call site] 00111
6 list_check [function] [call site] 00112
6 list_node_to_off_ [function] [call site] 00113
6 list_node_from_off_ [function] [call site] 00114
6 pthread_rwlock_wrlock [call site] 00116
6 lwan_log_perror_debug [function] [call site] 00117
6 hash_del [function] [call site] 00118
7 hash_probe [function] [call site] 00119
8 hash_probe_key [function] [call site] 00120
9 hash_probe_half [function] [call site] 00121
10 memchr [call site] 00122
10 __assert_fail [call site] 00123
10 __assert_fail [call site] 00124
10 memchr [call site] 00125
9 hash_probe_half [function] [call site] 00126
9 memchr [call site] 00127
7 hash_resize [function] [call site] 00128
8 __assert_fail [call site] 00129
8 memchr [call site] 00130
8 lwan_log_critical_debug [function] [call site] 00131
9 abort [call site] 00133
8 __assert_fail [call site] 00134
8 memchr [call site] 00135
8 reallocarray [call site] 00136
8 reallocarray [call site] 00137
6 pthread_rwlock_unlock [call site] 00138
6 lwan_log_perror_debug [function] [call site] 00139
6 list_empty [function] [call site] 00140
6 pthread_rwlock_wrlock [call site] 00141
6 list_prepend_list [function] [call site] 00142
7 list_check [function] [call site] 00143
7 list_check [function] [call site] 00144
7 list_head_init [function] [call site] 00146
6 pthread_rwlock_unlock [call site] 00147
6 lwan_log_perror_debug [function] [call site] 00148
5 pthread_rwlock_destroy [call site] 00149
5 hash_unref [function] [call site] 00150
6 hash_iter [function] [call site] 00151
6 hash_iter_next [function] [call site] 00152
4 hash_str_new [function] [call site] 00153
5 hash_custom_new [function] [call site] 00154
6 lwan_log_error_debug [function] [call site] 00155
6 lwan_log_error_debug [function] [call site] 00157
6 calloc [call site] 00158
6 calloc [call site] 00159
5 hash_str_eq [function] [call site] 00160
6 __assert_fail [call site] 00161
6 __assert_fail [call site] 00162
6 strcmp [call site] 00163
3 create_realm_file [function] [call site] 00164
4 hash_str_new [function] [call site] 00165
4 zero_and_free [function] [call site] 00166
5 strlen [call site] 00167
5 lwan_always_bzero [function] [call site] 00168
4 config_open_for_fuzzing [function] [call site] 00169
5 config_init_data [function] [call site] 00170
6 hash_str_new [function] [call site] 00171
6 lwan_strbuf_init [function] [call site] 00172
7 lwan_strbuf_init_with_size [function] [call site] 00173
8 grow_buffer_if_needed [function] [call site] 00174
9 align_size [function] [call site] 00175
9 realloc [call site] 00176
6 config_ring_buffer_init [function] [call site] 00177
6 lexeme_ring_buffer_init [function] [call site] 00178
4 config_read_line [function] [call site] 00179
5 parser_next [function] [call site] 00180
6 parser_next_internal [function] [call site] 00181
7 config_ring_buffer_get_ptr_or_null [function] [call site] 00182
8 config_ring_buffer_empty [function] [call site] 00183
8 config_ring_buffer_mask [function] [call site] 00184
7 lwan_strbuf_reset [function] [call site] 00185
7 config_ring_buffer_get_ptr_or_null [function] [call site] 00186
6 streq [function] [call site] 00187
7 strcmp [call site] 00188
6 config_from_parser [function] [call site] 00189
6 config_from_parser [function] [call site] 00190
6 parse_constants [function] [call site] 00191
7 config_read_line [function] [call site] 00192
7 strdup [call site] 00193
7 strdup [call site] 00194
7 lwan_log_critical_debug [function] [call site] 00195
7 hash_add [function] [call site] 00196
8 hash_add_internal [function] [call site] 00197
9 hash_probe_key [function] [call site] 00198
9 hash_resize [function] [call site] 00199
9 hash_probe_tombstone [function] [call site] 00200
10 hash_probe_half_tombstone [function] [call site] 00201
11 memchr [call site] 00202
10 hash_probe_half_tombstone [function] [call site] 00203
9 lwan_log_critical_debug [function] [call site] 00204
7 config_error [function] [call site] 00205
8 vasprintf [call site] 00206
6 config_from_parser [function] [call site] 00207
6 config_last_error [function] [call site] 00208
6 config_error [function] [call site] 00209
4 strdup [call site] 00210
4 strdup [call site] 00211
4 hash_add_unique [function] [call site] 00212
5 hash_add_internal [function] [call site] 00213
4 zero_and_free [function] [call site] 00214
4 zero_and_free [function] [call site] 00215
4 lwan_log_warning_debug [function] [call site] 00216
4 config_error [function] [call site] 00217
4 config_last_error [function] [call site] 00218
4 config_cur_line [function] [call site] 00219
4 config_last_error [function] [call site] 00220
4 lwan_log_error_debug [function] [call site] 00221
4 config_close [function] [call site] 00222
5 hash_unref [function] [call site] 00223
5 lwan_strbuf_free [function] [call site] 00224
6 __assert_fail [call site] 00225
4 config_close [function] [call site] 00226
4 hash_unref [function] [call site] 00227
3 destroy_realm_file [function] [call site] 00228
4 hash_unref [function] [call site] 00229
2 request_seems_complete [function] [call site] 00230
3 read_request_finalizer_from_helper [function] [call site] 00231
4 memmem [call site] 00232
2 parse_http_request [function] [call site] 00233
3 parse_proxy_protocol [function] [call site] 00234
4 parse_proxy_protocol_v1 [function] [call site] 00235
5 memchr [call site] 00236
5 strsep_char [function] [call site] 00237
6 strchr [call site] 00238
5 strsep_char [function] [call site] 00239
5 strsep_char [function] [call site] 00240
5 strsep_char [function] [call site] 00241
5 inet_pton [call site] 00242
5 inet_pton [call site] 00243
5 parse_ascii_port [function] [call site] 00244
6 __errno_location [call site] 00245
6 __isoc23_strtoul [call site] 00246
6 __errno_location [call site] 00247
6 htons [call site] 00248
5 parse_ascii_port [function] [call site] 00249
5 inet_pton [call site] 00250
5 inet_pton [call site] 00251
5 parse_ascii_port [function] [call site] 00252
5 parse_ascii_port [function] [call site] 00253
4 parse_proxy_protocol_v2 [function] [call site] 00254
5 ntohs [call site] 00255
3 identify_http_path [function] [call site] 00256
4 memchr [call site] 00257
4 find_query_string [function] [call site] 00258
5 memchr [call site] 00259
3 parse_headers [function] [call site] 00260
4 memchr [call site] 00261
4 set_header_value [function] [call site] 00262
4 set_header_value [function] [call site] 00263
4 set_header_value [function] [call site] 00264
4 set_header_value [function] [call site] 00265
4 set_header_value [function] [call site] 00266
4 set_header_value [function] [call site] 00267
4 set_header_value [function] [call site] 00268
3 url_decode [function] [call site] 00269
4 strpbrk [call site] 00270
4 stpcpy [call site] 00272
4 strlen [call site] 00273
3 strchr [call site] 00274
2 coro_deferred_get_generation [function] [call site] 00275
2 parse_accept_encoding [function] [call site] 00276
3 __assert_fail [call site] 00277
3 strchr [call site] 00278
2 lwan_request_get_header [function] [call site] 00279
3 strlen [call site] 00280
3 strchr [call site] 00281
3 __assert_fail [call site] 00282
3 strcaseequal_neutral_len [function] [call site] 00283
4 isalpha_neutral [function] [call site] 00284
4 __assert_fail [call site] 00285
2 lwan_request_get_header [function] [call site] 00286
2 lwan_request_get_cookie [function] [call site] 00287
3 parse_cookies [function] [call site] 00288
4 lwan_request_get_header [function] [call site] 00289
4 __assert_fail [call site] 00290
4 strlen [call site] 00291
4 parse_key_values [function] [call site] 00292
5 lwan_key_value_array_init [function] [call site] 00293
5 coro_defer [function] [call site] 00294
6 coro_defer_array_append [function] [call site] 00295
7 lwan_array_append_inline [function] [call site] 00296
8 lwan_array_append_heap [function] [call site] 00297
9 __errno_location [call site] 00298
9 reallocarray [call site] 00299
8 __assert_fail [call site] 00300
8 reallocarray [call site] 00301
6 lwan_log_error_debug [function] [call site] 00302
6 coro_defer_array_get_elem_index [function] [call site] 00303
7 __assert_fail [call site] 00304
5 reset_key_value_array [function] [call site] 00305
6 lwan_key_value_array_reset [function] [call site] 00306
7 lwan_array_reset [function] [call site] 00307
5 strsep_char [function] [call site] 00308
5 strsep_char [function] [call site] 00309
5 lwan_key_value_array_append [function] [call site] 00310
6 lwan_array_append_heap [function] [call site] 00311
5 lwan_key_value_array_sort [function] [call site] 00312
6 lwan_array_sort [function] [call site] 00313
7 qsort [call site] 00314
5 key_value_compare [function] [call site] 00315
6 strcmp [call site] 00316
5 coro_defer_fire_and_disarm [function] [call site] 00317
6 __assert_fail [call site] 00318
6 coro_defer_array_get_elem [function] [call site] 00319
6 __assert_fail [call site] 00320
6 coro_defer_disarm_internal [function] [call site] 00321
7 coro_defer_array_len [function] [call site] 00322
7 __assert_fail [call site] 00323
7 coro_defer_array_get_elem [function] [call site] 00324
4 identity_decode [function] [call site] 00325
3 value_lookup [function] [call site] 00326
4 bsearch [call site] 00327
4 key_value_compare [function] [call site] 00328
2 lwan_request_get_cookie [function] [call site] 00329
2 lwan_request_get_query_param [function] [call site] 00330
3 parse_query_string [function] [call site] 00331
4 __assert_fail [call site] 00332
4 parse_key_values [function] [call site] 00333
4 url_decode [function] [call site] 00334
3 value_lookup [function] [call site] 00335
2 lwan_request_get_post_param [function] [call site] 00336
3 parse_form_data [function] [call site] 00337
4 __assert_fail [call site] 00338
4 strncmp [call site] 00339
4 parse_key_values [function] [call site] 00340
4 url_decode [function] [call site] 00341
3 value_lookup [function] [call site] 00342
2 parse_range [function] [call site] 00343
3 strncmp [call site] 00344
3 parse_off_without_sign [function] [call site] 00345
4 __errno_location [call site] 00346
4 __isoc23_strtoull [call site] 00347
4 __errno_location [call site] 00348
3 lwan_char_isdigit [function] [call site] 00349
3 parse_off_without_sign [function] [call site] 00350
3 parse_off_without_sign [function] [call site] 00351
2 parse_if_modified_since [function] [call site] 00352
3 lwan_parse_rfc_time [function] [call site] 00353
4 parse_2_digit_num [function] [call site] 00354
5 parse_2_digit_num_no_end_check [function] [call site] 00355
4 parse_2_digit_num_no_end_check [function] [call site] 00356
4 parse_2_digit_num_no_end_check [function] [call site] 00357
4 parse_2_digit_num [function] [call site] 00358
4 parse_2_digit_num [function] [call site] 00359
4 parse_2_digit_num [function] [call site] 00360
4 timegm [call site] 00361
2 prepare_websocket_handshake [function] [call site] 00362
3 lwan_request_get_header [function] [call site] 00363
3 lwan_request_get_header [function] [call site] 00364
3 strstr [call site] 00365
3 strstr [call site] 00366
3 lwan_request_get_header [function] [call site] 00368
3 strlen [call site] 00369
3 base64_encoded_len [function] [call site] 00370
3 base64_validate [function] [call site] 00371
3 sha1_init [function] [call site] 00372
3 sha1_update [function] [call site] 00373
4 sha1_transform [function] [call site] 00374
5 __bswap_32 [function] [call site] 00375
4 sha1_transform [function] [call site] 00376
3 sha1_update [function] [call site] 00377
3 sha1_finalize [function] [call site] 00378
4 sha1_update [function] [call site] 00379
4 sha1_update [function] [call site] 00380
4 sha1_update [function] [call site] 00381
3 base64_encode [function] [call site] 00382
4 base64_encoded_len [function] [call site] 00383
2 lwan_http_authorize [function] [call site] 00384
3 lwan_request_get_header [function] [call site] 00385
3 strncmp [call site] 00386
3 strlen [call site] 00387
3 authorize [function] [call site] 00388
4 cache_coro_get_and_ref_entry [function] [call site] 00389
5 cache_coro_get_and_ref_entry_with_ctx [function] [call site] 00390
6 __assert_fail [call site] 00391
6 cache_get_and_ref_entry_with_ctx [function] [call site] 00392
7 __assert_fail [call site] 00393
7 __assert_fail [call site] 00394
7 __assert_fail [call site] 00395
7 hash_find [function] [call site] 00396
8 hash_probe [function] [call site] 00397
7 pthread_rwlock_tryrdlock [call site] 00398
7 hash_find [function] [call site] 00399
7 pthread_rwlock_unlock [call site] 00400
7 pthread_rwlock_unlock [call site] 00401
7 pthread_rwlock_trywrlock [call site] 00402
7 hash_add_unique [function] [call site] 00403
7 clock_gettime [call site] 00404
7 lwan_log_critical_debug [function] [call site] 00405
7 pthread_rwlock_wrlock [call site] 00406
7 list_add_tail [function] [call site] 00407
8 list_check [function] [call site] 00408
7 pthread_rwlock_unlock [call site] 00409
7 pthread_rwlock_unlock [call site] 00411
6 coro_defer2 [function] [call site] 00412
7 coro_defer_array_append [function] [call site] 00413
7 lwan_log_error_debug [function] [call site] 00414
7 coro_defer_array_get_elem_index [function] [call site] 00415
6 cache_entry_unref_defer [function] [call site] 00416
7 cache_entry_unref [function] [call site] 00417
8 __assert_fail [call site] 00418
8 __assert_fail [call site] 00419
6 coro_yield [function] [call site] 00420
7 __assert_fail [call site] 00421
7 coro_swapcontext [call site] 00422
4 base64_decode [function] [call site] 00423
4 memchr [call site] 00424
4 hash_find [function] [call site] 00425
3 coro_printf [function] [call site] 00427
4 vasprintf [call site] 00428
4 coro_defer_array_append [function] [call site] 00429
4 lwan_log_error_debug [function] [call site] 00430
4 coro_defer_array_get_elem_index [function] [call site] 00431
3 coro_memdup [function] [call site] 00432
4 coro_malloc [function] [call site] 00433
5 arena_alloc [function] [call site] 00434
6 calloc [call site] 00435
6 ptr_array_append [function] [call site] 00436
7 lwan_array_append_inline [function] [call site] 00437
2 coro_deferred_run [function] [call site] 00438