Fuzz introspector: fuzz_bufq
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
386 113 Curl_bufq_pass call site: 00113 append
14 2 LLVMFuzzerTestOneInput call site: 00002 allocate_template_buffer
12 99 bufq_slurpn call site: 00099 Curl_bufq_pass
10 72 Curl_bufq_read call site: 00072 Curl_bufq_slurp
10 504 Curl_bufq_skip call site: 00504 Curl_bufq_write
8 59 chunk_peek_at call site: 00059 Curl_bufq_read
7 49 chunk_peek call site: 00049 Curl_bufq_peek_at
5 520 chunk_append call site: 00520 Curl_bufq_free
4 27 Curl_bufq_init call site: 00027 Curl_bufq_is_empty
4 35 Curl_bufq_len call site: 00035 Curl_bufq_peek
2 24 bufq_init call site: 00024 FV_PRINTF
2 32 Curl_bufq_is_empty call site: 00032 Curl_bufq_len

Fuzzer calltree

0 LLVMFuzzerTestOneInput [function] [call site] 00000
1 fuzz_handle_bufq [function] [call site] 00002
2 allocate_template_buffer [function] [call site] 00004
2 FuzzedDataProvider*::ConsumeIntegralInRange [function] [call site] 00009
2 FuzzedDataProvider*::ConsumeIntegralInRange [function] [call site] 00010
2 FuzzedDataProvider*::ConsumeBool [function] [call site] 00011
2 FuzzedDataProvider*::ConsumeBool [function] [call site] 00012
2 FuzzedDataProvider*::ConsumeIntegralInRange [function] [call site] 00013
2 FV_PRINTF [function] [call site] 00014
2 FV_PRINTF [function] [call site] 00015
2 Curl_bufcp_init [function] [call site] 00016
3 DEBUGASSERT [function] [call site] 00017
3 DEBUGASSERT [function] [call site] 00018
2 Curl_bufq_initp [function] [call site] 00020
2 FV_PRINTF [function] [call site] 00025
2 Curl_bufq_init [function] [call site] 00026
3 bufq_init [function] [call site] 00027
2 FuzzedDataProvider*::remaining_bytes [function] [call site] 00028
2 FuzzedDataProvider*::ConsumeIntegralInRange [function] [call site] 00029
2 Curl_bufq_is_empty [function] [call site] 00031
3 chunk_is_empty [function] [call site] 00032
2 Curl_bufq_len [function] [call site] 00034
3 chunk_len [function] [call site] 00035
2 FV_PRINTF [function] [call site] 00036
2 Curl_bufq_reset [function] [call site] 00037
2 FV_PRINTF [function] [call site] 00038
2 Curl_bufq_peek [function] [call site] 00039
3 chunk_is_empty [function] [call site] 00040
3 prune_head [function] [call site] 00041
4 chunk_is_empty [function] [call site] 00042
4 bufcp_put [function] [call site] 00043
5 curlx_free [function] [call site] 00044
5 chunk_reset [function] [call site] 00045
4 curlx_free [function] [call site] 00046
3 chunk_is_empty [function] [call site] 00047
3 chunk_peek [function] [call site] 00048
4 DEBUGASSERT [function] [call site] 00049
2 compute_buffer [function] [call site] 00050
2 FV_PRINTF [function] [call site] 00053
2 FuzzedDataProvider*::ConsumeIntegralInRange [function] [call site] 00054
2 FV_PRINTF [function] [call site] 00055
2 Curl_bufq_peek_at [function] [call site] 00056
3 chunk_len [function] [call site] 00057
3 chunk_peek_at [function] [call site] 00058
4 DEBUGASSERT [function] [call site] 00059
2 compute_buffer [function] [call site] 00060
2 FV_PRINTF [function] [call site] 00063
2 FuzzedDataProvider*::ConsumeIntegralInRange [function] [call site] 00064
2 FV_PRINTF [function] [call site] 00065
2 Curl_bufq_read [function] [call site] 00067
2 FV_PRINTF [function] [call site] 00073
2 compute_buffer [function] [call site] 00075
2 FV_PRINTF [function] [call site] 00078
2 FuzzedDataProvider*::ConsumeIntegralInRange [function] [call site] 00080
2 FV_PRINTF [function] [call site] 00081
2 Curl_bufq_slurp [function] [call site] 00082
3 bufq_slurpn [function] [call site] 00083
4 Curl_bufq_sipn [function] [call site] 00084
5 get_non_full_tail [function] [call site] 00085
6 chunk_is_full [function] [call site] 00086
6 get_spare [function] [call site] 00087
7 chunk_reset [function] [call site] 00088
7 bufcp_take [function] [call site] 00089
8 chunk_reset [function] [call site] 00090
8 curlx_calloc [function] [call site] 00091
7 curlx_calloc [function] [call site] 00092
6 DEBUGASSERT [function] [call site] 00093
5 chunk_slurpn [function] [call site] 00094
6 DEBUGASSERT [function] [call site] 00095
6 DEBUGASSERT [function] [call site] 00097
4 DEBUGASSERT [function] [call site] 00098
4 chunk_is_full [function] [call site] 00099
2 FV_PRINTF [function] [call site] 00100
2 FV_PRINTF [function] [call site] 00101
2 FuzzedDataProvider*::ConsumeIntegralInRange [function] [call site] 00103
2 FV_PRINTF [function] [call site] 00104
2 Curl_bufq_sipn [function] [call site] 00105
2 FV_PRINTF [function] [call site] 00106
2 FV_PRINTF [function] [call site] 00108
2 FuzzedDataProvider*::ConsumeIntegralInRange [function] [call site] 00109
2 FV_PRINTF [function] [call site] 00110
2 Curl_bufq_pass [function] [call site] 00111
3 Curl_bufq_peek [function] [call site] 00112
3 writer [function] [call site] 00113
4 append [function] [call site] 00114
5 curl_url [function] [call site] 00115
6 curlx_calloc [function] [call site] 00116
5 curl_url_set [function] [call site] 00117
6 urlset_clear [function] [call site] 00118
7 free_urlhandle [function] [call site] 00119
8 curlx_free [function] [call site] 00120
8 curlx_free [function] [call site] 00121
8 curlx_strzero [function] [call site] 00122
9 curlx_memzero_low [function] [call site] 00123
8 curlx_free [function] [call site] 00125
8 curlx_free [function] [call site] 00126
8 curlx_free [function] [call site] 00127
8 curlx_free [function] [call site] 00128
8 curlx_free [function] [call site] 00129
8 curlx_free [function] [call site] 00130
8 curlx_free [function] [call site] 00131
7 curlx_safefree [function] [call site] 00133
7 curlx_safefree [function] [call site] 00134
7 curlx_strzero [function] [call site] 00135
7 curlx_safefree [function] [call site] 00136
7 curlx_safefree [function] [call site] 00137
7 curlx_safefree [function] [call site] 00138
7 curlx_safefree [function] [call site] 00139
7 curlx_safefree [function] [call site] 00140
7 curlx_safefree [function] [call site] 00141
7 curlx_safefree [function] [call site] 00142
6 set_url_scheme [function] [call site] 00144
7 Curl_get_scheme [function] [call site] 00146
8 Curl_getn_scheme [function] [call site] 00147
9 Curl_raw_tolower [function] [call site] 00148
9 curl_strnequal [function] [call site] 00149
10 ncasecompare [function] [call site] 00150
11 Curl_raw_toupper [function] [call site] 00151
11 Curl_raw_toupper [function] [call site] 00152
11 Curl_raw_toupper [function] [call site] 00153
11 Curl_raw_toupper [function] [call site] 00154
6 curlx_safefree [function] [call site] 00158
6 set_url_port [function] [call site] 00159
7 curlx_str_number [function] [call site] 00161
8 str_num_base [function] [call site] 00162
9 DEBUGASSERT [function] [call site] 00163
9 DEBUGASSERT [function] [call site] 00164
9 DEBUGASSERT [function] [call site] 00165
9 valid_digit [function] [call site] 00166
9 curlx_hexval [function] [call site] 00167
9 valid_digit [function] [call site] 00168
9 curlx_hexval [function] [call site] 00169
9 valid_digit [function] [call site] 00170
6 set_url [function] [call site] 00171
7 curl_url_set [function] [call site] 00173
7 curl_url_set [function] [call site] 00174
7 curl_mfprintf [function] [call site] 00175
8 formatf [function] [call site] 00177
9 parsefmt [function] [call site] 00178
10 dollarstring [function] [call site] 00180
11 curlx_str_number [function] [call site] 00181
11 curlx_str_single [function] [call site] 00182
12 DEBUGASSERT [function] [call site] 00183
10 parse_flags [function] [call site] 00184
11 dollarstring [function] [call site] 00185
11 curlx_str_number [function] [call site] 00186
11 FALLTHROUGH [function] [call site] 00187
11 curlx_str_number [function] [call site] 00188
11 dollarstring [function] [call site] 00189
10 parse_conversion [function] [call site] 00190
10 is_arg_used [function] [call site] 00191
10 mark_arg_used [function] [call site] 00192
10 is_arg_used [function] [call site] 00193
10 mark_arg_used [function] [call site] 00194
10 mark_arg_used [function] [call site] 00195
10 is_arg_used [function] [call site] 00196
10 DEBUGASSERT [function] [call site] 00206
9 out_number [function] [call site] 00223
9 out_pointer [function] [call site] 00233
10 out_number [function] [call site] 00234
10 CURL_CSTRLEN [function] [call site] 00235
9 out_double [function] [call site] 00239
10 curl_msnprintf [function] [call site] 00241
11 va_start [function] [call site] 00242
11 curl_mvsnprintf [function] [call site] 00243
12 DEBUGASSERT [function] [call site] 00245
10 curl_msnprintf [function] [call site] 00247
10 curlx_win32_snprintf [function] [call site] 00248
10 snprintf [function] [call site] 00252
10 DEBUGASSERT [function] [call site] 00253
7 curl_url_strerror [function] [call site] 00257
7 curl_url_get [function] [call site] 00258
8 Curl_get_scheme [function] [call site] 00259
8 curl_msnprintf [function] [call site] 00260
8 Curl_get_scheme [function] [call site] 00261
8 curl_msnprintf [function] [call site] 00262
8 urlget_url [function] [call site] 00263
9 curl_strequal [function] [call site] 00264
10 casecompare [function] [call site] 00265
11 Curl_raw_toupper [function] [call site] 00266
11 Curl_raw_toupper [function] [call site] 00267
9 file_url [function] [call site] 00268
10 curl_maprintf [function] [call site] 00269
11 va_start [function] [call site] 00270
11 curl_mvaprintf [function] [call site] 00271
12 curlx_dyn_init [function] [call site] 00272
13 DEBUGASSERT [function] [call site] 00273
13 DEBUGASSERT [function] [call site] 00274
13 DEBUGASSERT [function] [call site] 00275
12 curlx_dyn_free [function] [call site] 00277
13 DEBUGASSERT [function] [call site] 00278
13 DEBUGASSERT [function] [call site] 00279
13 curlx_safefree [function] [call site] 00280
12 curlx_dyn_len [function] [call site] 00281
13 DEBUGASSERT [function] [call site] 00282
13 DEBUGASSERT [function] [call site] 00283
13 DEBUGASSERT [function] [call site] 00284
12 curlx_dyn_ptr [function] [call site] 00285
13 DEBUGASSERT [function] [call site] 00286
13 DEBUGASSERT [function] [call site] 00287
13 DEBUGASSERT [function] [call site] 00288
12 curlx_strdup [function] [call site] 00289
9 curl_msnprintf [function] [call site] 00291
9 Curl_get_scheme [function] [call site] 00292
9 curl_msnprintf [function] [call site] 00293
9 curlx_dyn_init [function] [call site] 00295
9 curlx_dyn_addf [function] [call site] 00296
10 DEBUGASSERT [function] [call site] 00297
10 DEBUGASSERT [function] [call site] 00298
10 DEBUGASSERT [function] [call site] 00299
10 DEBUGASSERT [function] [call site] 00300
10 va_start [function] [call site] 00302
10 curlx_dyn_vaddf [function] [call site] 00303
11 DEBUGASSERT [function] [call site] 00304
11 DEBUGASSERT [function] [call site] 00305
11 DEBUGASSERT [function] [call site] 00306
11 DEBUGASSERT [function] [call site] 00307
11 curlx_dyn_vprintf [function] [call site] 00308
12 curlx_dyn_free [function] [call site] 00310
11 curl_mvaprintf [function] [call site] 00311
11 dyn_nappend [function] [call site] 00312
12 DEBUGASSERT [function] [call site] 00313
12 DEBUGASSERT [function] [call site] 00314
12 DEBUGASSERT [function] [call site] 00315
12 DEBUGASSERT [function] [call site] 00316
12 DEBUGASSERT [function] [call site] 00317
12 DEBUGASSERT [function] [call site] 00318
12 curlx_dyn_free [function] [call site] 00319
12 DEBUGASSERT [function] [call site] 00320
12 curlx_realloc [function] [call site] 00321
12 curlx_dyn_free [function] [call site] 00322
11 curl_free [function] [call site] 00325
12 curlx_free [function] [call site] 00326
11 curlx_dyn_free [function] [call site] 00327
9 curlx_dyn_ptr [function] [call site] 00329
9 curl_easy_escape [function] [call site] 00330
10 curlx_strdup [function] [call site] 00332
10 curlx_dyn_init [function] [call site] 00333
10 ISUNRESERVED [function] [call site] 00334
10 curlx_dyn_addn [function] [call site] 00335
11 DEBUGASSERT [function] [call site] 00336
11 DEBUGASSERT [function] [call site] 00337
11 DEBUGASSERT [function] [call site] 00338
11 dyn_nappend [function] [call site] 00339
10 Curl_hexbyte [function] [call site] 00340
10 curlx_dyn_addn [function] [call site] 00341
10 curlx_dyn_ptr [function] [call site] 00342
9 Curl_is_ASCII_name [function] [call site] 00343
10 Curl_is_ASCII_str [function] [call site] 00345
9 host_decode [function] [call site] 00346
9 Curl_is_ASCII_name [function] [call site] 00347
9 host_encode [function] [call site] 00348
9 curl_msnprintf [function] [call site] 00349
9 curl_maprintf [function] [call site] 00350
9 curlx_free [function] [call site] 00351
8 urlget_format [function] [call site] 00352
9 curlx_memdup0 [function] [call site] 00354
10 curlx_malloc [function] [call site] 00355
10 DEBUGASSERT [function] [call site] 00356
9 Curl_urldecode [function] [call site] 00358
10 DEBUGASSERT [function] [call site] 00359
10 DEBUGASSERT [function] [call site] 00360
10 curlx_malloc [function] [call site] 00362
10 ISXDIGIT [function] [call site] 00363
10 ISXDIGIT [function] [call site] 00364
10 curlx_hexval [function] [call site] 00365
10 curlx_hexval [function] [call site] 00366
10 curlx_safefree [function] [call site] 00367
9 curlx_free [function] [call site] 00368
9 curlx_dyn_init [function] [call site] 00369
9 urlencode_str [function] [call site] 00370
10 DEBUGASSERT [function] [call site] 00371
10 find_host_sep [function] [call site] 00372
10 curlx_dyn_addn [function] [call site] 00374
10 curlx_dyn_addn [function] [call site] 00375
10 curlx_dyn_addn [function] [call site] 00376
10 Curl_hexbyte [function] [call site] 00377
10 curlx_dyn_addn [function] [call site] 00378
10 ISXDIGIT [function] [call site] 00379
10 ISXDIGIT [function] [call site] 00380
10 curlx_hexval [function] [call site] 00383
10 curlx_hexval [function] [call site] 00384
10 Curl_hexbyte [function] [call site] 00385
10 curlx_dyn_addn [function] [call site] 00386
10 curlx_dyn_addn [function] [call site] 00387
9 curlx_free [function] [call site] 00389
9 curlx_dyn_ptr [function] [call site] 00390
9 Curl_is_ASCII_name [function] [call site] 00391
9 host_decode [function] [call site] 00392
9 curlx_free [function] [call site] 00393
9 Curl_is_ASCII_name [function] [call site] 00394
9 host_encode [function] [call site] 00395
9 curlx_free [function] [call site] 00396
7 curl_mfprintf [function] [call site] 00397
7 curl_url_strerror [function] [call site] 00398
7 curl_free [function] [call site] 00402
7 curl_mfprintf [function] [call site] 00403
7 curl_url_cleanup [function] [call site] 00404
8 free_urlhandle [function] [call site] 00405
8 curlx_free [function] [call site] 00406
6 DEBUGASSERT [function] [call site] 00407
6 curlx_dyn_init [function] [call site] 00408
6 curlx_dyn_addn [function] [call site] 00409
6 url_encode_part [function] [call site] 00411
7 curlx_dyn_addn [function] [call site] 00412
7 ISUNRESERVED [function] [call site] 00413
7 allowed_in_path [function] [call site] 00414
7 curlx_dyn_addn [function] [call site] 00415
7 Curl_hexbyte [function] [call site] 00416
7 curlx_dyn_addn [function] [call site] 00417
6 url_uppercasehex_part [function] [call site] 00419
7 curlx_dyn_add [function] [call site] 00420
8 DEBUGASSERT [function] [call site] 00421
8 DEBUGASSERT [function] [call site] 00422
8 DEBUGASSERT [function] [call site] 00423
8 DEBUGASSERT [function] [call site] 00424
8 dyn_nappend [function] [call site] 00426
7 curlx_dyn_ptr [function] [call site] 00428
7 Curl_raw_toupper [function] [call site] 00433
7 Curl_raw_toupper [function] [call site] 00434
6 curlx_dyn_ptr [function] [call site] 00435
6 url_append_query [function] [call site] 00436
7 curlx_dyn_ptr [function] [call site] 00438
7 curlx_dyn_init [function] [call site] 00439
7 curlx_dyn_addn [function] [call site] 00440
7 curlx_dyn_addn [function] [call site] 00441
7 curlx_dyn_add [function] [call site] 00442
7 curlx_dyn_free [function] [call site] 00443
7 curlx_free [function] [call site] 00444
7 curlx_dyn_ptr [function] [call site] 00445
7 curlx_dyn_free [function] [call site] 00446
7 curlx_free [function] [call site] 00448
7 curlx_dyn_ptr [function] [call site] 00449
6 url_sethost [function] [call site] 00450
7 curlx_dyn_len [function] [call site] 00451
7 curlx_dyn_ptr [function] [call site] 00452
7 Curl_urldecode [function] [call site] 00453
7 hostname_check [function] [call site] 00454
8 DEBUGASSERT [function] [call site] 00455
8 ipv6_parse [function] [call site] 00456
9 DEBUGASSERT [function] [call site] 00457
9 curlx_strdup [function] [call site] 00460
9 curlx_inet_pton [function] [call site] 00461
9 curlx_inet_ntop [function] [call site] 00471
10 inet_ntop4 [function] [call site] 00472
11 DEBUGASSERT [function] [call site] 00473
11 SNPRINTF [function] [call site] 00474
11 curlx_strcopy [function] [call site] 00476
12 DEBUGASSERT [function] [call site] 00477
10 inet_ntop6 [function] [call site] 00479
11 inet_ntop4 [function] [call site] 00481
11 curlx_strcopy [function] [call site] 00483
7 curlx_free [function] [call site] 00486
7 hostname_check [function] [call site] 00487
7 curlx_dyn_free [function] [call site] 00488
6 curlx_strzero [function] [call site] 00489
6 curlx_free [function] [call site] 00490
6 CURL_UNCONST [function] [call site] 00491
5 curl_url_set [function] [call site] 00492
5 curl_mfprintf [function] [call site] 00493
5 curl_url_get [function] [call site] 00494
5 curl_mfprintf [function] [call site] 00495
5 curl_url_strerror [function] [call site] 00496
5 curl_free [function] [call site] 00498
5 curl_url_cleanup [function] [call site] 00499
3 Curl_bufq_skip [function] [call site] 00500
4 chunk_skip [function] [call site] 00501
4 prune_head [function] [call site] 00504
2 FV_PRINTF [function] [call site] 00505
2 FV_PRINTF [function] [call site] 00506
2 FuzzedDataProvider*::ConsumeIntegralInRange [function] [call site] 00508
2 FV_PRINTF [function] [call site] 00509
2 Curl_bufq_skip [function] [call site] 00510
2 FuzzedDataProvider*::ConsumeIntegralInRange [function] [call site] 00511
2 FV_PRINTF [function] [call site] 00512
2 compute_buffer [function] [call site] 00513
2 Curl_bufq_write [function] [call site] 00514
3 DEBUGASSERT [function] [call site] 00515
3 get_non_full_tail [function] [call site] 00516
2 FV_PRINTF [function] [call site] 00521
2 FV_PRINTF [function] [call site] 00523
2 Curl_bufq_free [function] [call site] 00525
3 chunk_list_free [function] [call site] 00526
4 curlx_free [function] [call site] 00527
3 chunk_list_free [function] [call site] 00528
2 Curl_bufcp_free [function] [call site] 00529
3 chunk_list_free [function] [call site] 00530