Fuzz introspector: TestFuzzCryptoCertificateDataSetPEM
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
33 195 WLog_ConsoleAppender_New call site: 00195 WLog_FileAppender_New
24 88 InterlockedDecrement call site: 00088 UnWaitCriticalSection
16 140 NtCurrentTeb call site: 00140 GetEnvironmentVariableA
15 70 EnterCriticalSection call site: 00070 log_recursion
14 40 EnterCriticalSection call site: 00040 winpr_log_backtrace_ex
14 237 WLog_ParseFilters call site: 00237 WLog_AddStringLogFilters_int
7 183 WLog_InitializeRoot call site: 00183 GetEnvironmentVariableA
6 21 WLog_IsLevelActive call site: 00021 WLog_GetFilterLogLevel
4 57 WLog_PrintMessageVA call site: 00057 WLog_WriteData
4 176 WLog_AddChild call site: 00176 WLog_Free
3 28 WLog_GetLogLevel call site: 00028 WLog_PrintTextMessage
3 66 GetCurrentThreadId call site: 00066 WaitForCriticalSection

Fuzzer calltree

0 LLVMFuzzerTestOneInput [function] [call site] 00000
1 calloc [call site] 00001
1 freerdp_certificate_data_new_from_pem [function] [call site] 00002
2 freerdp_certificate_new_from_pem [function] [call site] 00003
3 freerdp_certificate_new_from [function] [call site] 00004
4 strlen [call site] 00005
4 x509_utils_from_pem [function] [call site] 00006
5 BIO_new_file [call site] 00007
5 BIO_new_mem_buf [call site] 00008
5 WLog_Print_dbg_tag [function] [call site] 00009
6 WLog_Get [function] [call site] 00010
7 WLog_GetRoot [function] [call site] 00011
8 winpr_InitOnceExecuteOnce [function] [call site] 00012
9 InterlockedCompareExchangePointer [function] [call site] 00013
10 winpr_int_assert [function] [call site] 00014
11 WLog_Get [function] [call site] 00015
12 WLog_Get_int [function] [call site] 00016
13 WLog_FindChild [function] [call site] 00017
14 WLog_Lock [function] [call site] 00018
15 winpr_int_assert [function] [call site] 00019
16 WLog_IsLevelActive [function] [call site] 00020
17 WLog_GetLogLevel [function] [call site] 00021
18 WLog_GetFilterLogLevel [function] [call site] 00022
19 _stricmp [function] [call site] 00023
20 strcasecmp [call site] 00024
19 __assert_fail [call site] 00025
19 _stricmp [function] [call site] 00026
19 __assert_fail [call site] 00027
18 WLog_GetLogLevel [function] [call site] 00028
16 WLog_PrintTextMessage [function] [call site] 00029
17 WLog_PrintTextMessageVA [function] [call site] 00030
18 WLog_PrintTextMessageInternal [function] [call site] 00031
19 __assert_fail [call site] 00032
19 vsnprintf [call site] 00033
19 WLog_Write [function] [call site] 00034
20 WLog_GetLogAppender [function] [call site] 00035
21 WLog_GetLogAppender [function] [call site] 00036
20 WLog_OpenAppender [function] [call site] 00037
21 WLog_GetLogAppender [function] [call site] 00038
20 EnterCriticalSection [function] [call site] 00039
21 winpr_int_assert [function] [call site] 00040
22 winpr_log_backtrace_ex [function] [call site] 00041
23 winpr_backtrace [function] [call site] 00042
24 winpr_unwind_backtrace [function] [call site] 00043
25 calloc [call site] 00044
25 calloc [call site] 00045
25 _Unwind_Backtrace [call site] 00046
25 unwind_backtrace_callback [function] [call site] 00047
26 __assert_fail [call site] 00048
26 _Unwind_GetIP [call site] 00049
26 _Unwind_GetLanguageSpecificData [call site] 00050
25 unwind_reason_str_buffer [function] [call site] 00051
26 unwind_reason_str [function] [call site] 00052
26 snprintf [call site] 00053
25 WLog_Print_dbg_tag [function] [call site] 00054
26 WLog_IsLevelActive [function] [call site] 00055
26 WLog_PrintMessageVA [function] [call site] 00056
27 WLog_PrintTextMessageInternal [function] [call site] 00057
27 WLog_WriteData [function] [call site] 00058
28 WLog_GetLogAppender [function] [call site] 00059
28 WLog_OpenAppender [function] [call site] 00060
28 EnterCriticalSection [function] [call site] 00061
29 InterlockedIncrement [function] [call site] 00062
30 winpr_int_assert [function] [call site] 00063
31 abort [call site] 00064
29 GetCurrentThreadId [function] [call site] 00065
30 syscall [call site] 00066
29 WaitForCriticalSection [function] [call site] 00067
30 winpr_int_assert [function] [call site] 00068
30 sem_wait [call site] 00069
29 GetCurrentThreadId [function] [call site] 00070
28 log_recursion [function] [call site] 00071
29 winpr_backtrace [function] [call site] 00072
29 winpr_backtrace_symbols [function] [call site] 00073
30 WLog_Print_dbg_tag [function] [call site] 00074
30 winpr_unwind_backtrace_symbols [function] [call site] 00075
31 calloc [call site] 00076
31 dladdr [call site] 00077
31 snprintf [call site] 00078
31 snprintf [call site] 00079
29 fprintf [call site] 00080
29 fprintf [call site] 00081
29 fprintf [call site] 00082
29 winpr_backtrace_free [function] [call site] 00083
30 winpr_unwind_backtrace_free [function] [call site] 00084
28 LeaveCriticalSection [function] [call site] 00085
29 winpr_int_assert [function] [call site] 00086
29 InterlockedDecrement [function] [call site] 00087
30 winpr_int_assert [function] [call site] 00088
29 UnWaitCriticalSection [function] [call site] 00089
30 winpr_int_assert [function] [call site] 00090
30 sem_post [call site] 00091
29 InterlockedDecrement [function] [call site] 00092
27 WLog_WriteImage [function] [call site] 00093
28 WLog_GetLogAppender [function] [call site] 00094
28 WLog_OpenAppender [function] [call site] 00095
28 EnterCriticalSection [function] [call site] 00096
28 log_recursion [function] [call site] 00097
28 LeaveCriticalSection [function] [call site] 00098
27 WLog_WritePacket [function] [call site] 00099
28 WLog_GetLogAppender [function] [call site] 00100
28 WLog_OpenAppender [function] [call site] 00101
28 EnterCriticalSection [function] [call site] 00102
28 log_recursion [function] [call site] 00103
28 LeaveCriticalSection [function] [call site] 00104
25 winpr_unwind_backtrace_free [function] [call site] 00105
23 WLog_IsLevelActive [function] [call site] 00106
23 WLog_PrintTextMessage [function] [call site] 00107
23 winpr_backtrace_symbols [function] [call site] 00108
23 WLog_IsLevelActive [function] [call site] 00109
23 WLog_PrintTextMessage [function] [call site] 00110
23 winpr_backtrace_free [function] [call site] 00111
20 log_recursion [function] [call site] 00112
20 LeaveCriticalSection [function] [call site] 00113
15 EnterCriticalSection [function] [call site] 00114
14 strcmp [call site] 00115
14 WLog_Unlock [function] [call site] 00116
15 winpr_int_assert [function] [call site] 00117
15 LeaveCriticalSection [function] [call site] 00118
13 WLog_New [function] [call site] 00119
14 calloc [call site] 00120
14 _strdup [function] [call site] 00121
15 strdup [call site] 00122
15 WLog_Print_dbg_tag [function] [call site] 00123
14 WLog_ParseName [function] [call site] 00124
15 strchr [call site] 00125
15 _strdup [function] [call site] 00126
15 calloc [call site] 00127
15 strchr [call site] 00128
14 calloc [call site] 00129
14 GetEnvironmentVariableA [function] [call site] 00130
15 getenv [call site] 00131
15 SetLastError [function] [call site] 00132
16 NtCurrentTeb [function] [call site] 00133
17 pthread_once [call site] 00134
17 sTebInitOnce [function] [call site] 00135
18 pthread_key_create [call site] 00136
18 sTebDestruct [function] [call site] 00137
17 pthread_getspecific [call site] 00138
17 calloc [call site] 00139
17 pthread_setspecific [call site] 00140
15 strlen [call site] 00141
14 GetEnvironmentVariableA [function] [call site] 00142
14 fprintf [call site] 00143
14 WLog_ParseLogLevel [function] [call site] 00144
15 _stricmp [function] [call site] 00145
15 _stricmp [function] [call site] 00146
15 _stricmp [function] [call site] 00147
15 _stricmp [function] [call site] 00148
15 _stricmp [function] [call site] 00149
15 _stricmp [function] [call site] 00150
15 _stricmp [function] [call site] 00151
14 WLog_SetLogLevel [function] [call site] 00152
15 WLog_UpdateInheritLevel [function] [call site] 00153
16 WLog_UpdateInheritLevel [function] [call site] 00154
15 WLog_reset_log_filters [function] [call site] 00155
16 WLog_reset_log_filters [function] [call site] 00156
14 WLog_GetFilterLogLevel [function] [call site] 00157
14 WLog_SetLogLevel [function] [call site] 00158
14 InitializeCriticalSectionAndSpinCount [function] [call site] 00159
15 InitializeCriticalSectionEx [function] [call site] 00160
16 winpr_int_assert [function] [call site] 00161
16 WLog_Print_dbg_tag [function] [call site] 00162
16 sem_init [call site] 00163
16 SetCriticalSectionSpinCount [function] [call site] 00164
17 winpr_int_assert [function] [call site] 00165
14 WLog_Free [function] [call site] 00166
15 WLog_Appender_Free [function] [call site] 00167
16 WLog_Layout_Free [function] [call site] 00168
16 DeleteCriticalSection [function] [call site] 00169
17 winpr_int_assert [function] [call site] 00170
17 sem_destroy [call site] 00171
15 DeleteCriticalSection [function] [call site] 00172
13 WLog_AddChild [function] [call site] 00173
14 WLog_Lock [function] [call site] 00174
14 realloc [call site] 00175
14 WLog_Unlock [function] [call site] 00176
13 WLog_Free [function] [call site] 00177
9 WLog_Print_dbg_tag [function] [call site] 00178
9 Sleep [function] [call site] 00179
10 usleep [call site] 00180
8 WLog_InitializeRoot [function] [call site] 00181
9 WLog_New [function] [call site] 00182
9 GetEnvironmentVariableA [function] [call site] 00183
9 GetEnvironmentVariableA [function] [call site] 00184
9 fprintf [call site] 00185
9 _stricmp [function] [call site] 00186
9 _stricmp [function] [call site] 00187
9 _stricmp [function] [call site] 00188
9 _stricmp [function] [call site] 00189
9 _stricmp [function] [call site] 00190
9 WLog_SetLogAppenderType [function] [call site] 00191
10 WLog_Appender_Free [function] [call site] 00192
10 WLog_Appender_New [function] [call site] 00193
11 WLog_ConsoleAppender_New [function] [call site] 00194
12 calloc [call site] 00195
11 WLog_FileAppender_New [function] [call site] 00196
12 calloc [call site] 00197
12 GetEnvironmentVariableA [function] [call site] 00198
12 GetEnvironmentVariableA [function] [call site] 00199
12 WLog_FileAppender_SetOutputFilePath [function] [call site] 00200
13 _strdup [function] [call site] 00201
12 GetEnvironmentVariableA [function] [call site] 00202
12 GetEnvironmentVariableA [function] [call site] 00203
12 WLog_FileAppender_SetOutputFileName [function] [call site] 00204
13 _strdup [function] [call site] 00205
11 WLog_BinaryAppender_New [function] [call site] 00206
12 calloc [call site] 00207
11 WLog_CallbackAppender_New [function] [call site] 00208
12 calloc [call site] 00209
11 WLog_SyslogAppender_New [function] [call site] 00210
12 calloc [call site] 00211
11 WLog_UdpAppender_New [function] [call site] 00212
12 calloc [call site] 00213
12 _socket [function] [call site] 00214
13 socket [call site] 00215
12 GetEnvironmentVariableA [function] [call site] 00216
12 GetEnvironmentVariableA [function] [call site] 00217
12 WLog_UdpAppender_Open [function] [call site] 00218
13 strchr [call site] 00219
13 winpr_int_assert [function] [call site] 00220
13 getaddrinfo [call site] 00221
13 freeaddrinfo [call site] 00222
13 freeaddrinfo [call site] 00223
12 _strdup [function] [call site] 00224
12 closesocket [function] [call site] 00225
13 close [call site] 00226
11 fprintf [call site] 00227
11 WLog_ConsoleAppender_New [function] [call site] 00228
11 WLog_Layout_New [function] [call site] 00229
12 calloc [call site] 00230
12 GetEnvironmentVariableA [function] [call site] 00231
12 GetEnvironmentVariableA [function] [call site] 00232
12 _strdup [function] [call site] 00233
11 WLog_Appender_Free [function] [call site] 00234
11 InitializeCriticalSectionAndSpinCount [function] [call site] 00235
9 WLog_ParseFilters [function] [call site] 00236
10 GetEnvironmentVariableA [function] [call site] 00237
10 GetEnvironmentVariableA [function] [call site] 00238
10 WLog_AddStringLogFilters_int [function] [call site] 00239
11 strchr [call site] 00240
11 realloc [call site] 00241
11 _strdup [function] [call site] 00242
11 strchr [call site] 00243
11 WLog_ParseFilter [function] [call site] 00244
12 strchr [call site] 00245
12 _strdup [function] [call site] 00246
12 calloc [call site] 00247
12 strrchr [call site] 00248
12 WLog_ParseLogLevel [function] [call site] 00249
12 strchr [call site] 00250
11 WLog_reset_log_filters [function] [call site] 00251
9 atexit [call site] 00252
9 WLog_Uninit_ [function] [call site] 00253
10 WLog_Free [function] [call site] 00254
10 WLog_Free [function] [call site] 00255
9 WLog_Uninit_ [function] [call site] 00256
5 PEM_read_bio_X509 [call site] 00257
5 BIO_free_all [call site] 00258
5 WLog_Print_dbg_tag [function] [call site] 00259
4 extract_chain_from_pem [function] [call site] 00260
5 BIO_new_file [call site] 00261
5 strlen [call site] 00262
5 winpr_int_assert [function] [call site] 00263
5 BIO_new_mem_buf [call site] 00264
5 PEM_read_bio_X509 [call site] 00265
5 BIO_free [call site] 00266
5 sk_X509_new_null [function] [call site] 00267
6 OPENSSL_sk_new_null [call site] 00268
5 X509_free [call site] 00269
5 BIO_free [call site] 00270
5 PEM_read_bio_X509 [call site] 00271
5 sk_X509_push [function] [call site] 00272
6 OPENSSL_sk_push [call site] 00273
5 X509_free [call site] 00274
5 BIO_free [call site] 00275
4 freerdp_certificate_new_from_x509 [function] [call site] 00276
5 winpr_int_assert [function] [call site] 00277
5 freerdp_certificate_new [function] [call site] 00278
6 calloc [call site] 00279
5 X509_dup [call site] 00280
5 freerdp_rsa_from_x509 [function] [call site] 00281
6 winpr_int_assert [function] [call site] 00282
6 freerdp_certificate_is_rsa [function] [call site] 00283
7 winpr_int_assert [function] [call site] 00284
7 is_rsa_key [function] [call site] 00285
8 X509_get0_pubkey [call site] 00286
8 EVP_PKEY_id [call site] 00287
6 X509_get0_pubkey [call site] 00288
6 EVP_PKEY_get1_RSA [call site] 00289
6 RSA_get0_key [call site] 00290
6 cert_info_create [function] [call site] 00291
7 winpr_int_assert [function] [call site] 00292
7 winpr_int_assert [function] [call site] 00293
7 read_bignum [function] [call site] 00294
8 winpr_int_assert [function] [call site] 00295
8 winpr_int_assert [function] [call site] 00296
8 winpr_int_assert [function] [call site] 00297
8 BN_num_bits [call site] 00298
8 BN_bn2bin [call site] 00299
8 crypto_reverse [function] [call site] 00300
7 read_bignum [function] [call site] 00301
7 cert_info_free [function] [call site] 00302
8 winpr_int_assert [function] [call site] 00303
6 RSA_free [call site] 00304
5 sk_X509_deep_copy [function] [call site] 00305
6 OPENSSL_sk_deep_copy [call site] 00306
5 X509_const_dup [function] [call site] 00307
6 X509_dup [call site] 00308
5 X509_free [call site] 00309
5 freerdp_certificate_free [function] [call site] 00310
6 certificate_free_int [function] [call site] 00311
7 winpr_int_assert [function] [call site] 00312
7 X509_free [call site] 00313
7 sk_X509_pop_free [function] [call site] 00314
8 OPENSSL_sk_pop_free [call site] 00315
7 X509_free [call site] 00316
7 certificate_free_x509_certificate_chain [function] [call site] 00317
8 cert_blob_free [function] [call site] 00318
7 cert_info_free [function] [call site] 00319
4 sk_X509_pop_free [function] [call site] 00320
4 X509_free [call site] 00321
4 X509_free [call site] 00322
2 freerdp_certificate_data_new_nocopy [function] [call site] 00323
3 calloc [call site] 00324
3 _strdup [function] [call site] 00325
3 strlen [call site] 00326
3 ensure_lowercase [function] [call site] 00327
4 strnlen [call site] 00328
4 tolower [call site] 00329
3 freerdp_certificate_data_load_cache [function] [call site] 00330
4 winpr_int_assert [function] [call site] 00331
4 freerdp_certificate_data_hash_ [function] [call site] 00332
5 snprintf [call site] 00333
5 ensure_lowercase [function] [call site] 00334
4 strnlen [call site] 00335
4 freerdp_certificate_get_subject [function] [call site] 00336
5 winpr_int_assert [function] [call site] 00337
5 x509_utils_get_subject [function] [call site] 00338
6 X509_get_subject_name [call site] 00339
6 crypto_print_name [function] [call site] 00340
7 BIO_s_mem [call site] 00341
7 BIO_new [call site] 00342
7 X509_NAME_print_ex [call site] 00343
7 BIO_number_written [call site] 00344
7 calloc [call site] 00345
7 ERR_clear_error [call site] 00346
7 BIO_read [call site] 00347
7 BIO_free_all [call site] 00348
6 WLog_Print_dbg_tag [function] [call site] 00349
4 calloc [call site] 00350
4 freerdp_certificate_get_pem_ex [function] [call site] 00351
5 winpr_int_assert [function] [call site] 00352
5 BIO_s_mem [call site] 00353
5 BIO_new [call site] 00354
5 WLog_Print_dbg_tag [function] [call site] 00355
5 PEM_write_bio_X509 [call site] 00356
5 WLog_Print_dbg_tag [function] [call site] 00357
5 sk_X509_num [function] [call site] 00358
6 OPENSSL_sk_num [call site] 00359
5 sk_X509_value [function] [call site] 00360
6 OPENSSL_sk_value [call site] 00361
5 PEM_write_bio_X509 [call site] 00362
5 WLog_Print_dbg_tag [function] [call site] 00363
5 bio_read_pem [function] [call site] 00364
6 winpr_int_assert [function] [call site] 00365
6 winpr_int_assert [function] [call site] 00366
6 realloc [call site] 00367
6 ERR_clear_error [call site] 00368
6 BIO_read [call site] 00369
6 WLog_Print_dbg_tag [function] [call site] 00370
5 BIO_free_all [call site] 00371
4 freerdp_certificate_get_pem_ex [function] [call site] 00372
4 freerdp_certificate_get_fingerprint [function] [call site] 00373
5 freerdp_certificate_get_fingerprint_by_hash [function] [call site] 00374
6 freerdp_certificate_get_fingerprint_by_hash_ex [function] [call site] 00375
7 WLog_Print_dbg_tag [function] [call site] 00376
7 WLog_Print_dbg_tag [function] [call site] 00377
7 x509_utils_get_hash [function] [call site] 00378
8 EVP_get_digestbyname [call site] 00379
8 WLog_Print_dbg_tag [function] [call site] 00380
8 WLog_Print_dbg_tag [function] [call site] 00381
8 calloc [call site] 00382
8 WLog_Print_dbg_tag [function] [call site] 00383
8 X509_digest [call site] 00384
8 WLog_Print_dbg_tag [function] [call site] 00385
7 calloc [call site] 00386
7 snprintf [call site] 00387
7 snprintf [call site] 00388
7 snprintf [call site] 00389
4 freerdp_certificate_get_issuer [function] [call site] 00390
5 winpr_int_assert [function] [call site] 00391
5 x509_utils_get_issuer [function] [call site] 00392
6 WLog_Print_dbg_tag [function] [call site] 00393
6 X509_get_issuer_name [call site] 00394
6 crypto_print_name [function] [call site] 00395
6 WLog_Print_dbg_tag [function] [call site] 00396
4 calloc [call site] 00397
3 freerdp_certificate_data_free [function] [call site] 00398
4 freerdp_certificate_free [function] [call site] 00399
2 freerdp_certificate_free [function] [call site] 00400
1 freerdp_certificate_data_free [function] [call site] 00401