Fuzz introspector: TestFuzzDrdynvc
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
34 172 WLog_ConsoleAppender_New call site: 00172 WLog_FileAppender_New
16 95 NtCurrentTeb call site: 00095 GetEnvironmentVariableA
14 216 WLog_ParseFilters call site: 00216 WLog_AddStringLogFilters_int
7 146 winpr_backtrace_free call site: 00146 log_recursion
7 160 WLog_InitializeRoot call site: 00160 GetEnvironmentVariableA
6 10 WLog_IsLevelActive call site: 00010 WLog_GetFilterLogLevel
5 40 unwind_backtrace_callback call site: 00040 WLog_Print_dbg_tag
5 67 InterlockedDecrement call site: 00067 UnWaitCriticalSection
4 55 GetCurrentThreadId call site: 00055 WaitForCriticalSection
4 131 WLog_AddChild call site: 00131 WLog_Free
4 232 winpr_atexit call site: 00232 WLog_Print_dbg_tag
4 246 Stream_GetRemainingLength call site: 00246 winpr_log_backtrace

Fuzzer calltree

0 LLVMFuzzerTestOneInput [function] [call site] 00000
1 Stream_StaticConstInit [function] [call site] 00001
2 Stream_StaticInit [function] [call site] 00002
3 winpr_int_assert [function] [call site] 00003
4 WLog_Get [function] [call site] 00004
5 WLog_GetRoot [function] [call site] 00005
6 winpr_InitOnceExecuteOnce [function] [call site] 00006
7 InterlockedCompareExchangePointer [function] [call site] 00007
8 winpr_int_assert [function] [call site] 00008
9 WLog_IsLevelActive [function] [call site] 00009
10 WLog_GetLogLevel [function] [call site] 00010
11 WLog_GetFilterLogLevel [function] [call site] 00011
12 _stricmp [function] [call site] 00012
13 strcasecmp [call site] 00013
12 __assert_fail [call site] 00014
12 _stricmp [function] [call site] 00015
12 __assert_fail [call site] 00016
11 WLog_GetLogLevel [function] [call site] 00017
9 WLog_PrintTextMessage [function] [call site] 00018
10 WLog_PrintTextMessageVA [function] [call site] 00019
11 WLog_PrintTextMessageInternal [function] [call site] 00020
12 __assert_fail [call site] 00021
12 vsnprintf [call site] 00022
12 WLog_Write [function] [call site] 00023
13 WLog_GetLogAppender [function] [call site] 00024
14 WLog_GetLogAppender [function] [call site] 00025
13 WLog_OpenAppender [function] [call site] 00026
14 WLog_GetLogAppender [function] [call site] 00027
13 EnterCriticalSection [function] [call site] 00028
14 winpr_int_assert [function] [call site] 00029
15 winpr_log_backtrace_ex [function] [call site] 00030
16 WLog_IsLevelActive [function] [call site] 00031
16 winpr_backtrace [function] [call site] 00032
17 winpr_unwind_backtrace [function] [call site] 00033
18 calloc [call site] 00034
18 calloc [call site] 00035
18 _Unwind_Backtrace [call site] 00036
18 unwind_backtrace_callback [function] [call site] 00037
19 __assert_fail [call site] 00038
19 _Unwind_GetIP [call site] 00039
19 _Unwind_GetLanguageSpecificData [call site] 00040
18 unwind_reason_str_buffer [function] [call site] 00041
19 unwind_reason_str [function] [call site] 00042
19 snprintf [call site] 00043
18 WLog_Print_dbg_tag [function] [call site] 00044
19 WLog_Get [function] [call site] 00045
20 WLog_Get_int [function] [call site] 00046
21 WLog_FindChild [function] [call site] 00047
22 WLog_Lock [function] [call site] 00048
23 winpr_int_assert [function] [call site] 00049
24 abort [call site] 00050
23 EnterCriticalSection [function] [call site] 00051
24 InterlockedIncrement [function] [call site] 00052
25 winpr_int_assert [function] [call site] 00053
24 GetCurrentThreadId [function] [call site] 00054
25 syscall [call site] 00055
24 WaitForCriticalSection [function] [call site] 00056
25 winpr_int_assert [function] [call site] 00057
25 winpr_int_assert [function] [call site] 00058
25 sem_wait [call site] 00059
24 GetCurrentThreadId [function] [call site] 00060
22 strcmp [call site] 00061
22 WLog_Unlock [function] [call site] 00062
23 winpr_int_assert [function] [call site] 00063
23 LeaveCriticalSection [function] [call site] 00064
24 winpr_int_assert [function] [call site] 00065
24 InterlockedDecrement [function] [call site] 00066
25 winpr_int_assert [function] [call site] 00067
24 UnWaitCriticalSection [function] [call site] 00068
25 winpr_int_assert [function] [call site] 00069
25 winpr_int_assert [function] [call site] 00070
25 sem_post [call site] 00071
24 InterlockedDecrement [function] [call site] 00072
21 WLog_New [function] [call site] 00073
22 calloc [call site] 00074
22 _strdup [function] [call site] 00075
23 strdup [call site] 00076
23 WLog_Print_dbg_tag [function] [call site] 00077
24 WLog_IsLevelActive [function] [call site] 00078
24 WLog_PrintTextMessageVA [function] [call site] 00079
22 WLog_ParseName [function] [call site] 00080
23 strchr [call site] 00081
23 _strdup [function] [call site] 00082
23 calloc [call site] 00083
23 strchr [call site] 00084
22 GetEnvironmentVariableA [function] [call site] 00085
23 getenv [call site] 00086
23 SetLastError [function] [call site] 00087
24 NtCurrentTeb [function] [call site] 00088
25 pthread_once [call site] 00089
25 sTebInitOnce [function] [call site] 00090
26 pthread_key_create [call site] 00091
26 sTebDestruct [function] [call site] 00092
25 pthread_getspecific [call site] 00093
25 calloc [call site] 00094
25 pthread_setspecific [call site] 00095
23 strlen [call site] 00096
22 GetEnvironmentVariableA [function] [call site] 00097
22 fprintf [call site] 00098
22 WLog_ParseLogLevel [function] [call site] 00099
23 _stricmp [function] [call site] 00100
23 _stricmp [function] [call site] 00101
23 _stricmp [function] [call site] 00102
23 _stricmp [function] [call site] 00103
23 _stricmp [function] [call site] 00104
23 _stricmp [function] [call site] 00105
23 _stricmp [function] [call site] 00106
22 WLog_SetLogLevel [function] [call site] 00107
23 WLog_UpdateInheritLevel [function] [call site] 00108
24 WLog_UpdateInheritLevel [function] [call site] 00109
23 WLog_reset_log_filters [function] [call site] 00110
24 WLog_reset_log_filters [function] [call site] 00111
22 WLog_GetFilterLogLevel [function] [call site] 00112
22 WLog_SetLogLevel [function] [call site] 00113
22 InitializeCriticalSectionAndSpinCount [function] [call site] 00114
23 InitializeCriticalSectionEx [function] [call site] 00115
24 winpr_int_assert [function] [call site] 00116
24 WLog_Print_dbg_tag [function] [call site] 00117
24 sem_init [call site] 00118
24 SetCriticalSectionSpinCount [function] [call site] 00119
25 winpr_int_assert [function] [call site] 00120
22 WLog_Free [function] [call site] 00121
23 WLog_Appender_Free [function] [call site] 00122
24 WLog_Layout_Free [function] [call site] 00123
24 DeleteCriticalSection [function] [call site] 00124
25 winpr_int_assert [function] [call site] 00125
25 sem_destroy [call site] 00126
23 DeleteCriticalSection [function] [call site] 00127
21 WLog_AddChild [function] [call site] 00128
22 WLog_Lock [function] [call site] 00129
22 realloc [call site] 00130
22 WLog_Unlock [function] [call site] 00131
21 WLog_Free [function] [call site] 00132
18 winpr_unwind_backtrace_free [function] [call site] 00133
16 WLog_IsLevelActive [function] [call site] 00134
16 WLog_PrintTextMessage [function] [call site] 00135
16 winpr_backtrace_symbols [function] [call site] 00136
17 WLog_Print_dbg_tag [function] [call site] 00137
17 winpr_unwind_backtrace_symbols [function] [call site] 00138
18 calloc [call site] 00139
18 dladdr [call site] 00140
18 snprintf [call site] 00141
18 snprintf [call site] 00142
16 WLog_IsLevelActive [function] [call site] 00143
16 WLog_PrintTextMessage [function] [call site] 00144
16 winpr_backtrace_free [function] [call site] 00145
17 winpr_unwind_backtrace_free [function] [call site] 00146
13 log_recursion [function] [call site] 00147
14 winpr_backtrace [function] [call site] 00148
14 winpr_backtrace_symbols [function] [call site] 00149
14 fprintf [call site] 00150
14 fprintf [call site] 00151
14 fprintf [call site] 00152
14 winpr_backtrace_free [function] [call site] 00153
13 LeaveCriticalSection [function] [call site] 00154
7 WLog_Print_dbg_tag [function] [call site] 00155
7 Sleep [function] [call site] 00156
8 usleep [call site] 00157
6 WLog_InitializeRoot [function] [call site] 00158
7 WLog_New [function] [call site] 00159
7 GetEnvironmentVariableA [function] [call site] 00160
7 GetEnvironmentVariableA [function] [call site] 00161
7 fprintf [call site] 00162
7 _stricmp [function] [call site] 00163
7 _stricmp [function] [call site] 00164
7 _stricmp [function] [call site] 00165
7 _stricmp [function] [call site] 00166
7 _stricmp [function] [call site] 00167
7 WLog_SetLogAppenderType [function] [call site] 00168
8 WLog_Appender_Free [function] [call site] 00169
8 WLog_Appender_New [function] [call site] 00170
9 WLog_ConsoleAppender_New [function] [call site] 00171
10 calloc [call site] 00172
9 WLog_FileAppender_New [function] [call site] 00173
10 calloc [call site] 00174
10 GetEnvironmentVariableA [function] [call site] 00175
10 GetEnvironmentVariableA [function] [call site] 00176
10 WLog_FileAppender_SetOutputFilePath [function] [call site] 00177
11 _strdup [function] [call site] 00178
10 GetEnvironmentVariableA [function] [call site] 00179
10 GetEnvironmentVariableA [function] [call site] 00180
10 WLog_FileAppender_SetOutputFileName [function] [call site] 00181
11 winpr_int_assert [function] [call site] 00182
11 winpr_int_assert [function] [call site] 00183
11 _strdup [function] [call site] 00184
9 WLog_BinaryAppender_New [function] [call site] 00185
10 calloc [call site] 00186
9 WLog_CallbackAppender_New [function] [call site] 00187
9 WLog_SyslogAppender_New [function] [call site] 00188
10 calloc [call site] 00189
9 WLog_UdpAppender_New [function] [call site] 00190
10 calloc [call site] 00191
10 _socket [function] [call site] 00192
11 socket [call site] 00193
10 GetEnvironmentVariableA [function] [call site] 00194
10 GetEnvironmentVariableA [function] [call site] 00195
10 WLog_UdpAppender_Open [function] [call site] 00196
11 strchr [call site] 00197
11 winpr_int_assert [function] [call site] 00198
11 getaddrinfo [call site] 00199
11 freeaddrinfo [call site] 00200
11 freeaddrinfo [call site] 00201
10 _strdup [function] [call site] 00202
10 closesocket [function] [call site] 00203
11 close [call site] 00204
9 fprintf [call site] 00205
9 WLog_ConsoleAppender_New [function] [call site] 00206
9 WLog_Layout_New [function] [call site] 00207
10 calloc [call site] 00208
10 GetEnvironmentVariableA [function] [call site] 00209
10 GetEnvironmentVariableA [function] [call site] 00210
10 _strdup [function] [call site] 00211
9 WLog_Appender_Free [function] [call site] 00212
9 InitializeCriticalSectionAndSpinCount [function] [call site] 00213
9 WLog_Appender_Free [function] [call site] 00214
7 WLog_ParseFilters [function] [call site] 00215
8 GetEnvironmentVariableA [function] [call site] 00216
8 GetEnvironmentVariableA [function] [call site] 00217
8 WLog_AddStringLogFilters_int [function] [call site] 00218
9 strchr [call site] 00219
9 realloc [call site] 00220
9 _strdup [function] [call site] 00221
9 strchr [call site] 00222
9 WLog_ParseFilter [function] [call site] 00223
10 strchr [call site] 00224
10 _strdup [function] [call site] 00225
10 calloc [call site] 00226
10 strrchr [call site] 00227
10 WLog_ParseLogLevel [function] [call site] 00228
10 strchr [call site] 00229
9 WLog_reset_log_filters [function] [call site] 00230
7 winpr_atexit [function] [call site] 00231
8 atexit [call site] 00232
8 __errno_location [call site] 00233
8 winpr_strerror [function] [call site] 00234
9 __xpg_strerror_r [call site] 00235
8 WLog_Print_dbg_tag [function] [call site] 00236
7 WLog_Uninit_ [function] [call site] 00237
8 WLog_Free [function] [call site] 00238
8 WLog_Free [function] [call site] 00239
7 WLog_Uninit_ [function] [call site] 00240
3 winpr_int_assert [function] [call site] 00241
1 Stream_GetRemainingLength [function] [call site] 00242
2 winpr_int_assert [function] [call site] 00243
2 winpr_int_assert [function] [call site] 00244
2 winpr_int_assert [function] [call site] 00245
2 winpr_int_assert [function] [call site] 00246
2 WLog_Print_dbg_tag [function] [call site] 00247
2 winpr_log_backtrace [function] [call site] 00248
3 WLog_Get [function] [call site] 00249
3 winpr_log_backtrace_ex [function] [call site] 00250
1 fuzz_process_one_pdu [function] [call site] 00251
2 Stream_CheckAndLogRequiredLengthEx [function] [call site] 00252
3 winpr_int_assert [function] [call site] 00253
3 Stream_GetRemainingLength [function] [call site] 00254
3 Stream_CheckAndLogRequiredLengthExVa [function] [call site] 00255
4 winpr_int_assert [function] [call site] 00256
4 Stream_GetRemainingLength [function] [call site] 00257
4 WLog_Get [function] [call site] 00258
4 Stream_CheckAndLogRequiredLengthWLogExVa [function] [call site] 00259
5 winpr_int_assert [function] [call site] 00260
5 Stream_GetRemainingLength [function] [call site] 00261
5 WLog_IsLevelActive [function] [call site] 00262
5 vsnprintf [call site] 00263
5 WLog_IsLevelActive [function] [call site] 00264
5 WLog_PrintTextMessage [function] [call site] 00265
5 winpr_log_backtrace_ex [function] [call site] 00266
2 Stream_Get_UINT8 [function] [call site] 00267
3 stream_read_u8 [function] [call site] 00268
4 winpr_int_assert [function] [call site] 00269
4 Stream_GetRemainingLength [function] [call site] 00270
4 winpr_int_assert [function] [call site] 00271
4 winpr_Data_Get_UINT8 [function] [call site] 00272
5 winpr_int_assert [function] [call site] 00273
4 Stream_Seek [function] [call site] 00274
5 winpr_int_assert [function] [call site] 00275
5 Stream_GetRemainingCapacity [function] [call site] 00276
6 winpr_int_assert [function] [call site] 00277
6 winpr_int_assert [function] [call site] 00278
6 winpr_int_assert [function] [call site] 00279
6 WLog_Print_dbg_tag [function] [call site] 00280
6 winpr_log_backtrace [function] [call site] 00281
5 winpr_int_assert [function] [call site] 00282
2 fuzz_var_uint_bytes [function] [call site] 00283
2 fuzz_var_uint_bytes [function] [call site] 00284
2 Stream_CheckAndLogRequiredLengthEx [function] [call site] 00285
2 fuzz_read_variable_uint [function] [call site] 00286
3 Stream_Get_UINT8 [function] [call site] 00287
3 Stream_Get_UINT16 [function] [call site] 00288
4 stream_read_u16_le [function] [call site] 00289
5 winpr_int_assert [function] [call site] 00290
5 Stream_GetRemainingLength [function] [call site] 00291
5 winpr_int_assert [function] [call site] 00292
5 winpr_Data_Get_UINT16 [function] [call site] 00293
5 Stream_Seek [function] [call site] 00294
3 Stream_Get_UINT32 [function] [call site] 00295
4 stream_read_u32_le [function] [call site] 00296
5 winpr_int_assert [function] [call site] 00297
5 Stream_GetRemainingLength [function] [call site] 00298
5 winpr_int_assert [function] [call site] 00299
5 winpr_Data_Get_UINT32 [function] [call site] 00300
6 winpr_int_assert [function] [call site] 00301
5 Stream_Seek [function] [call site] 00302
2 fuzz_read_variable_uint [function] [call site] 00303
2 Stream_CheckAndLogRequiredLengthEx [function] [call site] 00304
2 fuzz_read_variable_uint [function] [call site] 00305
2 Stream_CheckAndLogRequiredLengthEx [function] [call site] 00306
2 Stream_Seek [function] [call site] 00307
2 Stream_CheckAndLogRequiredLengthEx [function] [call site] 00308
2 Stream_Get_UINT16 [function] [call site] 00309
2 Stream_GetRemainingLength [function] [call site] 00310
2 Stream_Seek [function] [call site] 00311