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
422 113 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
10 540 Curl_bufq_skip call site: 00540 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
5 556 chunk_append call site: 00556 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
6 curlx_safefree [function] [call site] 00151
6 set_url_port [function] [call site] 00152
7 curlx_str_number [function] [call site] 00154
8 str_num_base [function] [call site] 00155
9 DEBUGASSERT [function] [call site] 00156
9 DEBUGASSERT [function] [call site] 00157
9 DEBUGASSERT [function] [call site] 00158
9 valid_digit [function] [call site] 00159
9 curlx_hexval [function] [call site] 00160
9 valid_digit [function] [call site] 00161
9 valid_digit [function] [call site] 00162
9 curlx_hexval [function] [call site] 00163
9 curlx_hexval [function] [call site] 00164
6 set_url [function] [call site] 00165
7 curl_url_set [function] [call site] 00167
7 curl_url_set [function] [call site] 00168
7 curl_mfprintf [function] [call site] 00169
8 curl_mvfprintf [function] [call site] 00171
9 formatf [function] [call site] 00172
10 parsefmt [function] [call site] 00173
11 dollarstring [function] [call site] 00175
12 curlx_str_number [function] [call site] 00176
12 curlx_str_single [function] [call site] 00177
13 DEBUGASSERT [function] [call site] 00178
11 parse_flags [function] [call site] 00179
12 dollarstring [function] [call site] 00180
12 curlx_str_number [function] [call site] 00181
12 FALLTHROUGH [function] [call site] 00182
12 curlx_str_number [function] [call site] 00183
12 dollarstring [function] [call site] 00184
11 parse_conversion [function] [call site] 00185
11 is_arg_used [function] [call site] 00186
11 mark_arg_used [function] [call site] 00187
11 is_arg_used [function] [call site] 00188
11 mark_arg_used [function] [call site] 00189
11 mark_arg_used [function] [call site] 00190
11 is_arg_used [function] [call site] 00191
11 DEBUGASSERT [function] [call site] 00202
10 stream_zrun [function] [call site] 00203
10 out_number [function] [call site] 00207
11 stream_pad [function] [call site] 00208
12 stream_run [function] [call site] 00209
12 stream_run [function] [call site] 00210
11 stream_pad [function] [call site] 00212
11 DEBUGASSERT [function] [call site] 00213
11 stream_pad [function] [call site] 00214
11 stream_pad [function] [call site] 00221
11 stream_run [function] [call site] 00222
11 stream_pad [function] [call site] 00223
10 out_number [function] [call site] 00224
10 out_string [function] [call site] 00225
11 CURL_CSTRLEN [function] [call site] 00226
11 CURL_CSTRLEN [function] [call site] 00227
11 stream_pad [function] [call site] 00230
11 stream_run [function] [call site] 00231
11 stream_zrun [function] [call site] 00232
11 stream_pad [function] [call site] 00233
10 out_pointer [function] [call site] 00235
11 out_number [function] [call site] 00236
11 CURL_CSTRLEN [function] [call site] 00237
11 stream_pad [function] [call site] 00238
11 stream_run [function] [call site] 00239
11 stream_pad [function] [call site] 00240
10 out_double [function] [call site] 00241
11 curl_msnprintf [function] [call site] 00243
12 va_start [function] [call site] 00244
12 curl_mvsnprintf [function] [call site] 00245
13 DEBUGASSERT [function] [call site] 00247
11 curl_msnprintf [function] [call site] 00249
11 curlx_win32_snprintf [function] [call site] 00250
11 snprintf [function] [call site] 00254
11 DEBUGASSERT [function] [call site] 00255
11 stream_run [function] [call site] 00257
7 curl_url_strerror [function] [call site] 00261
7 curl_url_get [function] [call site] 00262
8 Curl_get_scheme [function] [call site] 00263
8 curl_msnprintf [function] [call site] 00264
8 Curl_get_scheme [function] [call site] 00265
8 curl_msnprintf [function] [call site] 00266
8 urlget_url [function] [call site] 00267
9 curl_strequal [function] [call site] 00268
10 casecompare [function] [call site] 00269
11 Curl_raw_toupper [function] [call site] 00270
11 Curl_raw_toupper [function] [call site] 00271
9 file_url [function] [call site] 00272
10 curl_maprintf [function] [call site] 00273
11 va_start [function] [call site] 00274
11 curl_mvaprintf [function] [call site] 00275
12 curlx_dyn_init [function] [call site] 00276
13 DEBUGASSERT [function] [call site] 00277
13 DEBUGASSERT [function] [call site] 00278
13 DEBUGASSERT [function] [call site] 00279
12 alloc_flush [function] [call site] 00281
13 curlx_dyn_addn [function] [call site] 00282
14 DEBUGASSERT [function] [call site] 00283
14 DEBUGASSERT [function] [call site] 00284
14 DEBUGASSERT [function] [call site] 00285
14 dyn_nappend [function] [call site] 00286
15 DEBUGASSERT [function] [call site] 00287
15 DEBUGASSERT [function] [call site] 00288
15 DEBUGASSERT [function] [call site] 00289
15 DEBUGASSERT [function] [call site] 00290
15 DEBUGASSERT [function] [call site] 00291
15 DEBUGASSERT [function] [call site] 00292
15 curlx_dyn_free [function] [call site] 00293
16 DEBUGASSERT [function] [call site] 00294
16 DEBUGASSERT [function] [call site] 00295
16 curlx_safefree [function] [call site] 00296
15 DEBUGASSERT [function] [call site] 00297
15 curlx_realloc [function] [call site] 00298
15 curlx_dyn_free [function] [call site] 00299
12 curlx_dyn_free [function] [call site] 00301
12 curlx_dyn_len [function] [call site] 00302
13 DEBUGASSERT [function] [call site] 00303
13 DEBUGASSERT [function] [call site] 00304
13 DEBUGASSERT [function] [call site] 00305
12 curlx_dyn_ptr [function] [call site] 00306
13 DEBUGASSERT [function] [call site] 00307
13 DEBUGASSERT [function] [call site] 00308
13 DEBUGASSERT [function] [call site] 00309
12 curlx_strdup [function] [call site] 00310
9 curl_msnprintf [function] [call site] 00312
9 Curl_get_scheme [function] [call site] 00313
9 curl_msnprintf [function] [call site] 00314
9 curlx_dyn_init [function] [call site] 00316
9 curlx_dyn_addf [function] [call site] 00317
10 DEBUGASSERT [function] [call site] 00318
10 DEBUGASSERT [function] [call site] 00319
10 DEBUGASSERT [function] [call site] 00320
10 DEBUGASSERT [function] [call site] 00321
10 va_start [function] [call site] 00323
10 curlx_dyn_vaddf [function] [call site] 00324
11 DEBUGASSERT [function] [call site] 00325
11 DEBUGASSERT [function] [call site] 00326
11 DEBUGASSERT [function] [call site] 00327
11 DEBUGASSERT [function] [call site] 00328
11 curlx_dyn_vprintf [function] [call site] 00329
12 alloc_flush [function] [call site] 00331
12 curlx_dyn_free [function] [call site] 00332
11 curl_mvaprintf [function] [call site] 00333
11 dyn_nappend [function] [call site] 00334
11 curl_free [function] [call site] 00336
12 curlx_free [function] [call site] 00337
11 curlx_dyn_free [function] [call site] 00338
9 curlx_dyn_ptr [function] [call site] 00340
9 curl_easy_escape [function] [call site] 00341
9 Curl_is_ASCII_name [function] [call site] 00348
10 Curl_is_ASCII_str [function] [call site] 00350
9 host_decode [function] [call site] 00351
9 Curl_is_ASCII_name [function] [call site] 00352
9 host_encode [function] [call site] 00353
9 curl_msnprintf [function] [call site] 00354
9 curl_maprintf [function] [call site] 00355
9 curlx_free [function] [call site] 00356
8 urlget_format [function] [call site] 00357
9 curlx_memdup0 [function] [call site] 00359
10 curlx_malloc [function] [call site] 00360
10 DEBUGASSERT [function] [call site] 00361
9 Curl_urldecode [function] [call site] 00363
10 DEBUGASSERT [function] [call site] 00364
10 DEBUGASSERT [function] [call site] 00365
10 curlx_malloc [function] [call site] 00367
10 curlx_safefree [function] [call site] 00371
9 curlx_free [function] [call site] 00372
9 curlx_dyn_init [function] [call site] 00373
9 urlencode_str [function] [call site] 00374
10 DEBUGASSERT [function] [call site] 00375
10 find_host_sep [function] [call site] 00376
10 curlx_dyn_addn [function] [call site] 00378
10 curlx_dyn_addn [function] [call site] 00379
10 curlx_dyn_addn [function] [call site] 00380
10 Curl_hexbyte [function] [call site] 00381
10 curlx_dyn_addn [function] [call site] 00382
10 ISXDIGIT [function] [call site] 00383
10 ISXDIGIT [function] [call site] 00384
10 curlx_hexval [function] [call site] 00387
10 curlx_hexval [function] [call site] 00388
10 Curl_hexbyte [function] [call site] 00389
10 curlx_dyn_addn [function] [call site] 00390
10 ISXDIGIT [function] [call site] 00391
10 ISXDIGIT [function] [call site] 00392
10 curlx_dyn_addn [function] [call site] 00395
9 curlx_free [function] [call site] 00397
9 curlx_dyn_ptr [function] [call site] 00398
9 Curl_is_ASCII_name [function] [call site] 00399
9 host_decode [function] [call site] 00400
9 curlx_free [function] [call site] 00401
9 Curl_is_ASCII_name [function] [call site] 00402
9 host_encode [function] [call site] 00403
9 curlx_free [function] [call site] 00404
7 curl_mfprintf [function] [call site] 00405
7 curl_url_strerror [function] [call site] 00406
7 curl_free [function] [call site] 00410
7 curl_mfprintf [function] [call site] 00411
7 curl_url_cleanup [function] [call site] 00412
8 free_urlhandle [function] [call site] 00413
8 curlx_free [function] [call site] 00414
6 DEBUGASSERT [function] [call site] 00415
6 curlx_dyn_init [function] [call site] 00416
6 curlx_dyn_addn [function] [call site] 00418
6 url_encode_part [function] [call site] 00420
7 curlx_dyn_addn [function] [call site] 00421
7 ISUNRESERVED [function] [call site] 00422
7 allowed_in_path [function] [call site] 00423
7 curlx_dyn_addn [function] [call site] 00424
7 Curl_hexbyte [function] [call site] 00425
7 curlx_dyn_addn [function] [call site] 00426
6 url_uppercasehex_part [function] [call site] 00428
7 curlx_dyn_add [function] [call site] 00429
8 DEBUGASSERT [function] [call site] 00430
8 DEBUGASSERT [function] [call site] 00431
8 DEBUGASSERT [function] [call site] 00432
8 DEBUGASSERT [function] [call site] 00433
8 dyn_nappend [function] [call site] 00435
7 curlx_dyn_ptr [function] [call site] 00437
7 Curl_raw_toupper [function] [call site] 00442
7 Curl_raw_toupper [function] [call site] 00443
6 curlx_dyn_ptr [function] [call site] 00444
6 url_append_query [function] [call site] 00445
7 curlx_dyn_ptr [function] [call site] 00447
7 curlx_dyn_init [function] [call site] 00448
7 curlx_dyn_addn [function] [call site] 00449
7 curlx_dyn_addn [function] [call site] 00450
7 curlx_dyn_add [function] [call site] 00451
7 curlx_dyn_free [function] [call site] 00452
7 curlx_free [function] [call site] 00453
7 curlx_dyn_ptr [function] [call site] 00454
7 curlx_dyn_free [function] [call site] 00455
7 curlx_free [function] [call site] 00457
7 curlx_dyn_ptr [function] [call site] 00458
6 url_sethost [function] [call site] 00459
7 curlx_dyn_len [function] [call site] 00460
7 curlx_dyn_ptr [function] [call site] 00461
7 Curl_urldecode [function] [call site] 00462
7 hostname_check6 [function] [call site] 00463
8 DEBUGASSERT [function] [call site] 00464
8 ipv6_parse [function] [call site] 00465
9 DEBUGASSERT [function] [call site] 00466
9 curlx_strdup [function] [call site] 00469
9 curlx_inet_pton [function] [call site] 00470
9 curlx_inet_ntop [function] [call site] 00480
10 inet_ntop4 [function] [call site] 00481
11 DEBUGASSERT [function] [call site] 00482
11 SNPRINTF [function] [call site] 00483
11 curlx_strcopy [function] [call site] 00485
12 DEBUGASSERT [function] [call site] 00486
10 inet_ntop6 [function] [call site] 00488
11 inet_ntop4 [function] [call site] 00490
11 curlx_strcopy [function] [call site] 00492
8 hostname_check [function] [call site] 00494
7 curlx_dyn_init [function] [call site] 00495
7 curlx_dyn_addn [function] [call site] 00496
7 ipv4_normalize [function] [call site] 00497
8 curlx_dyn_ptr [function] [call site] 00498
8 curlx_str_hex [function] [call site] 00500
9 str_num_base [function] [call site] 00501
8 curlx_str_octal [function] [call site] 00502
9 str_num_base [function] [call site] 00503
8 curlx_str_number [function] [call site] 00504
8 curlx_dyn_reset [function] [call site] 00505
9 DEBUGASSERT [function] [call site] 00506
9 DEBUGASSERT [function] [call site] 00507
9 DEBUGASSERT [function] [call site] 00508
8 curlx_dyn_addf [function] [call site] 00509
8 curlx_dyn_reset [function] [call site] 00510
8 curlx_dyn_addf [function] [call site] 00511
8 curlx_dyn_reset [function] [call site] 00512
8 curlx_dyn_addf [function] [call site] 00513
8 curlx_dyn_reset [function] [call site] 00514
8 curlx_dyn_addf [function] [call site] 00515
7 curlx_dyn_reset [function] [call site] 00516
7 curlx_dyn_addn [function] [call site] 00517
7 curlx_dyn_ptr [function] [call site] 00518
7 curlx_dyn_len [function] [call site] 00519
7 curlx_dyn_free [function] [call site] 00520
7 curlx_free [function] [call site] 00521
7 hostname_check6 [function] [call site] 00522
7 ipv4_normalize [function] [call site] 00523
7 curlx_dyn_free [function] [call site] 00524
6 curlx_strzero [function] [call site] 00525
6 curlx_free [function] [call site] 00526
6 CURL_UNCONST [function] [call site] 00527
5 curl_url_set [function] [call site] 00528
5 curl_mfprintf [function] [call site] 00529
5 curl_url_get [function] [call site] 00530
5 curl_mfprintf [function] [call site] 00531
5 curl_url_strerror [function] [call site] 00532
5 curl_free [function] [call site] 00534
5 curl_url_cleanup [function] [call site] 00535
3 Curl_bufq_skip [function] [call site] 00536
4 chunk_skip [function] [call site] 00537
4 prune_head [function] [call site] 00540
2 FV_PRINTF [function] [call site] 00541
2 FV_PRINTF [function] [call site] 00542
2 FuzzedDataProvider*::ConsumeIntegralInRange [function] [call site] 00544
2 FV_PRINTF [function] [call site] 00545
2 Curl_bufq_skip [function] [call site] 00546
2 FuzzedDataProvider*::ConsumeIntegralInRange [function] [call site] 00547
2 FV_PRINTF [function] [call site] 00548
2 compute_buffer [function] [call site] 00549
2 Curl_bufq_write [function] [call site] 00550
3 DEBUGASSERT [function] [call site] 00551
3 get_non_full_tail [function] [call site] 00552
2 FV_PRINTF [function] [call site] 00557
2 FV_PRINTF [function] [call site] 00559
2 Curl_bufq_free [function] [call site] 00561
3 chunk_list_free [function] [call site] 00562
4 curlx_free [function] [call site] 00563
3 chunk_list_free [function] [call site] 00564
2 Curl_bufcp_free [function] [call site] 00565
3 chunk_list_free [function] [call site] 00566