Fuzz introspector: db_dump_fuzz_load_client_stats
For issues and ideas: https://github.com/ossf/fuzz-introspector/issues

Fuzz blockers

The followings are the branches where fuzzer fails to bypass.

Unique non-covered Complexity Unique Reachable Complexities Unique Reachable Functions All non-covered Complexity All Reachable Complexity Function Name Function Callsite Blocked Branch
40 40 1 :

['print__base_msg']

40 54 dump__base_msg_chunk_process call site: 00149 /src/mosquitto/apps/db_dump/db_dump.c:302
6 6 1 :

['print__client']

6 8 dump__client_chunk_process call site: 00263 /src/mosquitto/apps/db_dump/db_dump.c:172
5 5 1 :

['print__client_msg']

5 7 dump__client_msg_chunk_process call site: 00191 /src/mosquitto/apps/db_dump/db_dump.c:214
4 4 1 :

['print__sub']

4 6 dump__sub_chunk_process call site: 00231 /src/mosquitto/apps/db_dump/db_dump.c:362
0 0 None 46 97 dump__base_msg_chunk_process call site: 00146 /src/mosquitto/apps/db_dump/db_dump.c:293
0 0 None 24 821 db_dump_fuzz_main call site: 00008 /src/mosquitto/apps/db_dump/db_dump.c:428
0 0 None 22 819 db_dump_fuzz_main call site: 00012 /src/mosquitto/apps/db_dump/db_dump.c:444
0 0 None 20 59 dump__client_chunk_process call site: 00259 /src/mosquitto/apps/db_dump/db_dump.c:163
0 0 None 6 26 db_dump_fuzz_main call site: 00271 /src/mosquitto/apps/db_dump/db_dump.c:490
0 0 None 2 185 persist__chunk_base_msg_read_v56 call site: 00069 /src/mosquitto/src/persist_read_v5.c:212
0 0 None 0 181 property__read_all call site: 00073 /src/mosquitto/src/../lib/property_mosq.c:176
0 0 None 0 59 db_dump_fuzz_main call site: 00274 /src/mosquitto/apps/db_dump/db_dump.c:504

Fuzzer calltree

0 LLVMFuzzerTestOneInput [function] [call site] 00000
1 getpid [call site] 00001
1 fopen [call site] 00002
1 fwrite [call site] 00003
1 fclose [call site] 00004
1 run_db_dump(char*) [function] [call site] 00005
2 strdup [call site] 00006
2 strdup [call site] 00007
2 db_dump_fuzz_main [function] [call site] 00008
3 strcmp [call site] 00009
3 strcmp [call site] 00010
3 fprintf [call site] 00011
3 fopen [call site] 00012
3 fprintf [call site] 00013
3 fread [call site] 00014
3 memcmp [call site] 00015
3 printf [call site] 00016
3 fread [call site] 00017
3 printf [call site] 00018
3 fread [call site] 00019
3 ntohl [call site] 00020
3 printf [call site] 00021
3 printf [call site] 00022
3 persist__chunk_header_read [function] [call site] 00023
4 persist__chunk_header_read_v56 [function] [call site] 00024
5 fread [call site] 00025
5 ntohl [call site] 00026
5 ntohl [call site] 00027
4 persist__chunk_header_read_v234 [function] [call site] 00028
5 fread [call site] 00029
5 fread [call site] 00030
3 dump__cfg_chunk_process [function] [call site] 00031
4 persist__chunk_cfg_read_v56 [function] [call site] 00032
5 fread [call site] 00033
5 __errno_location [call site] 00034
5 log__printf [function] [call site] 00035
4 persist__chunk_cfg_read_v234 [function] [call site] 00036
5 fread [call site] 00037
5 fread [call site] 00038
5 fread [call site] 00039
5 __errno_location [call site] 00040
5 log__printf [function] [call site] 00041
4 fprintf [call site] 00042
4 printf [call site] 00043
4 printf [call site] 00044
4 printf [call site] 00045
4 printf [call site] 00046
4 fprintf [call site] 00047
4 printf [call site] 00048
3 dump__base_msg_chunk_process [function] [call site] 00049
4 persist__chunk_base_msg_read_v56 [function] [call site] 00050
5 fread [call site] 00051
5 ntohl [call site] 00052
5 ntohs [call site] 00053
5 ntohs [call site] 00054
5 ntohs [call site] 00055
5 ntohs [call site] 00056
5 ntohs [call site] 00057
5 persist__read_string_len [function] [call site] 00058
6 mosquitto__malloc [function] [call site] 00059
7 malloc_usable_size [call site] 00060
6 log__printf [function] [call site] 00061
6 fread [call site] 00062
6 mosquitto__free [function] [call site] 00063
7 malloc_usable_size [call site] 00064
5 persist__read_string_len [function] [call site] 00065
5 persist__read_string_len [function] [call site] 00066
5 mosquitto__malloc [function] [call site] 00067
5 fread [call site] 00068
5 mosquitto__malloc [function] [call site] 00069
5 fread [call site] 00070
5 property__read_all [function] [call site] 00071
6 packet__read_varint [function] [call site] 00072
6 mosquitto__calloc [function] [call site] 00073
7 calloc [call site] 00074
7 malloc_usable_size [call site] 00075
6 mosquitto_property_free_all [function] [call site] 00076
7 property__free [function] [call site] 00077
8 mosquitto__free [function] [call site] 00078
8 mosquitto__free [function] [call site] 00079
8 mosquitto__free [function] [call site] 00080
8 mosquitto__free [function] [call site] 00081
6 property__read [function] [call site] 00082
7 packet__read_varint [function] [call site] 00083
7 packet__read_byte [function] [call site] 00084
8 __assert_fail [call site] 00085
7 packet__read_uint16 [function] [call site] 00086
8 __assert_fail [call site] 00087
8 ntohs [call site] 00088
7 packet__read_uint32 [function] [call site] 00089
8 __assert_fail [call site] 00090
8 ntohl [call site] 00091
7 packet__read_varint [function] [call site] 00092
7 packet__read_string [function] [call site] 00093
8 packet__read_binary [function] [call site] 00094
9 __assert_fail [call site] 00095
9 packet__read_uint16 [function] [call site] 00096
9 mosquitto__malloc [function] [call site] 00097
8 mosquitto_validate_utf8 [function] [call site] 00098
8 mosquitto__free [function] [call site] 00099
7 packet__read_string [function] [call site] 00100
7 packet__read_string [function] [call site] 00101
7 mosquitto__free [function] [call site] 00102
7 log__printf [function] [call site] 00103
6 mosquitto__free [function] [call site] 00104
6 mosquitto_property_free_all [function] [call site] 00105
6 mosquitto_property_check_all [function] [call site] 00106
7 mosquitto_property_check_command [function] [call site] 00107
6 mosquitto_property_free_all [function] [call site] 00108
5 mosquitto__free [function] [call site] 00109
5 mosquitto__free [function] [call site] 00110
5 mosquitto__free [function] [call site] 00111
5 mosquitto__free [function] [call site] 00112
5 mosquitto__free [function] [call site] 00113
5 mosquitto__free [function] [call site] 00114
4 persist__chunk_base_msg_read_v234 [function] [call site] 00115
5 fread [call site] 00116
5 persist__read_string [function] [call site] 00117
6 fread [call site] 00118
6 ntohs [call site] 00119
6 persist__read_string_len [function] [call site] 00120
5 persist__read_string [function] [call site] 00121
5 fread [call site] 00122
5 ntohs [call site] 00123
5 fread [call site] 00124
5 ntohs [call site] 00125
5 fread [call site] 00126
5 persist__read_string [function] [call site] 00127
5 fread [call site] 00128
5 fread [call site] 00129
5 fread [call site] 00130
5 ntohl [call site] 00131
5 mosquitto_malloc [function] [call site] 00132
6 mosquitto__malloc [function] [call site] 00133
5 fread [call site] 00134
5 mosquitto__free [function] [call site] 00135
5 mosquitto__free [function] [call site] 00136
5 mosquitto__free [function] [call site] 00137
4 fprintf [call site] 00138
4 time [call site] 00139
4 mosquitto__calloc [function] [call site] 00140
4 fprintf [call site] 00141
4 db__message_store [function] [call site] 00142
4 mosquitto_malloc [function] [call site] 00143
4 exit [call site] 00144
4 fprintf [call site] 00145
4 calloc [call site] 00146
4 fprintf [call site] 00147
4 mosquitto_malloc [function] [call site] 00148
4 exit [call site] 00149
4 print__base_msg [function] [call site] 00150
5 printf [call site] 00151
5 printf [call site] 00152
5 printf [call site] 00153
5 printf [call site] 00154
5 printf [call site] 00155
5 printf [call site] 00156
5 printf [call site] 00157
5 printf [call site] 00158
5 printf [call site] 00159
5 mosquitto_validate_utf8 [function] [call site] 00160
5 print__properties [function] [call site] 00161
6 printf [call site] 00162
6 printf [call site] 00163
4 free__base_msg [function] [call site] 00164
5 mosquitto_property_free_all [function] [call site] 00165
3 dump__client_msg_chunk_process [function] [call site] 00166
4 persist__chunk_client_msg_read_v56 [function] [call site] 00167
5 fread [call site] 00168
5 persist__read_string_len [function] [call site] 00169
5 mosquitto__malloc [function] [call site] 00170
5 __errno_location [call site] 00171
5 fread [call site] 00172
5 property__read_all [function] [call site] 00173
5 mosquitto__free [function] [call site] 00174
5 mosquitto_property_identifier [function] [call site] 00175
5 mosquitto_property_varint_value [function] [call site] 00176
5 mosquitto_property_next [function] [call site] 00177
5 mosquitto_property_free_all [function] [call site] 00178
5 mosquitto__free [function] [call site] 00179
5 mosquitto__free [function] [call site] 00180
5 log__printf [function] [call site] 00181
4 persist__chunk_client_msg_read_v234 [function] [call site] 00182
5 persist__read_string [function] [call site] 00183
5 fread [call site] 00184
5 fread [call site] 00185
5 fread [call site] 00186
5 log__printf [function] [call site] 00187
5 mosquitto__free [function] [call site] 00188
4 fprintf [call site] 00189
4 strlen [call site] 00190
4 memcmp [call site] 00191
4 print__client_msg [function] [call site] 00192
5 printf [call site] 00193
5 printf [call site] 00194
5 printf [call site] 00195
5 printf [call site] 00196
5 printf [call site] 00197
5 printf [call site] 00198
5 printf [call site] 00199
5 printf [call site] 00200
5 printf [call site] 00201
5 printf [call site] 00202
4 free__client_msg [function] [call site] 00203
3 dump__retain_chunk_process [function] [call site] 00204
4 printf [call site] 00205
4 printf [call site] 00206
4 persist__chunk_retain_read_v56 [function] [call site] 00207
5 fread [call site] 00208
5 log__printf [function] [call site] 00209
4 persist__chunk_retain_read_v234 [function] [call site] 00210
5 fread [call site] 00211
5 __errno_location [call site] 00212
5 log__printf [function] [call site] 00213
4 fprintf [call site] 00214
4 printf [call site] 00215
3 dump__sub_chunk_process [function] [call site] 00216
4 persist__chunk_sub_read_v56 [function] [call site] 00217
5 fread [call site] 00218
5 ntohl [call site] 00219
5 ntohs [call site] 00220
5 ntohs [call site] 00221
5 persist__read_string_len [function] [call site] 00222
5 persist__read_string_len [function] [call site] 00223
5 mosquitto__free [function] [call site] 00224
4 persist__chunk_sub_read_v234 [function] [call site] 00225
5 persist__read_string [function] [call site] 00226
5 persist__read_string [function] [call site] 00227
5 fread [call site] 00228
5 mosquitto__free [function] [call site] 00229
4 fprintf [call site] 00230
4 strlen [call site] 00231
4 print__sub [function] [call site] 00232
5 printf [call site] 00233
5 printf [call site] 00234
5 printf [call site] 00235
5 printf [call site] 00236
5 printf [call site] 00237
5 printf [call site] 00238
4 free__sub [function] [call site] 00239
3 dump__client_chunk_process [function] [call site] 00240
4 persist__chunk_client_read_v56 [function] [call site] 00241
5 fread [call site] 00242
5 ntohs [call site] 00243
5 ntohs [call site] 00244
5 ntohl [call site] 00245
5 ntohs [call site] 00246
5 ntohs [call site] 00247
5 persist__read_string_len [function] [call site] 00248
5 persist__read_string_len [function] [call site] 00249
5 mosquitto__free [function] [call site] 00250
5 log__printf [function] [call site] 00251
4 persist__chunk_client_read_v234 [function] [call site] 00252
5 persist__read_string [function] [call site] 00253
5 fread [call site] 00254
5 ntohs [call site] 00255
5 fread [call site] 00256
5 log__printf [function] [call site] 00257
5 mosquitto__free [function] [call site] 00258
4 fprintf [call site] 00259
4 fprintf [call site] 00260
4 strdup [call site] 00261
4 strlen [call site] 00262
4 mosquitto_malloc [function] [call site] 00263
4 print__client [function] [call site] 00264
5 printf [call site] 00265
5 printf [call site] 00266
5 printf [call site] 00267
5 printf [call site] 00268
4 free__client [function] [call site] 00269
3 ftell [call site] 00270
3 fseek [call site] 00271
3 __errno_location [call site] 00272
3 fprintf [call site] 00273
3 fclose [call site] 00274
3 printf [call site] 00275
3 printf [call site] 00276
3 printf [call site] 00277
3 printf [call site] 00278
3 printf [call site] 00279
3 printf [call site] 00280
3 report_client_stats [function] [call site] 00281
4 printf [call site] 00282
4 printf [call site] 00283
3 cleanup_client_stats [function] [call site] 00284
4 mosquitto_free [function] [call site] 00285
5 mosquitto__free [function] [call site] 00286
4 mosquitto_free [function] [call site] 00287
3 cleanup_msg_store [function] [call site] 00288
4 mosquitto_free [function] [call site] 00289
3 cleanup_msg_store [function] [call site] 00290
3 fclose [call site] 00291