Fuzz introspector: fuzz_ds_ptree
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
15 83 ndpi_patricia_search_best2 call site: 00083 fprintf
14 6 ndpi_ptree_create call site: 00006 malloc
6 124 ndpi_patricia_lookup call site: 00124 fprintf
6 137 ndpi_patricia_lookup call site: 00137 fprintf
4 78 ndpi_patricia_search_best2 call site: 00078 fprintf
3 22 ndpi_patricia_new call site: 00022 calloc
2 35 ndpi_DeleteEntry call site: 00035
2 102 ndpi_patricia_search_best2 call site: 00102 fprintf
2 105 ndpi_ptree_insert call site: 00105 fprintf
2 117 ndpi_New_Prefix2 call site: 00117 ndpi_calloc
2 120 ndpi_patricia_lookup call site: 00120 fprintf
2 132 ndpi_patricia_lookup call site: 00132 fprintf

Fuzzer calltree

0 LLVMFuzzerTestOneInput [function] [call site] 00000
1 fuzz_set_alloc_callbacks_and_seed [function] [call site] 00001
2 fuzz_set_alloc_callbacks [function] [call site] 00002
3 ndpi_set_memory_alloction_functions [function] [call site] 00003
2 fuzz_set_alloc_seed [function] [call site] 00004
1 ndpi_ptree_create [function] [call site] 00005
2 ndpi_malloc [function] [call site] 00006
3 malloc [function] [call site] 00007
4 nalloc_fail [function] [call site] 00008
5 __sync_fetch_and_add [function] [call site] 00009
5 __sync_fetch_and_sub [function] [call site] 00010
5 nalloc_random_update [function] [call site] 00011
5 nalloc_random_update [function] [call site] 00012
5 nalloc_random_update [function] [call site] 00013
5 nalloc_backtrace_exclude [function] [call site] 00014
6 fprintf [function] [call site] 00015
6 __sanitizer_print_stack_trace [function] [call site] 00016
5 __sync_fetch_and_sub [function] [call site] 00017
5 __sync_fetch_and_sub [function] [call site] 00018
5 __sync_fetch_and_sub [function] [call site] 00019
4 nalloc_malloc [function] [call site] 00020
2 ndpi_patricia_new [function] [call site] 00021
3 ndpi_calloc [function] [call site] 00022
4 calloc [function] [call site] 00023
5 nalloc_fail [function] [call site] 00024
5 nalloc_calloc [function] [call site] 00025
3 assert [function] [call site] 00026
2 ndpi_patricia_new [function] [call site] 00027
2 ndpi_ptree_destroy [function] [call site] 00028
3 ndpi_patricia_destroy [function] [call site] 00029
4 ndpi_Clear_Patricia [function] [call site] 00030
5 ndpi_Deref_Prefix [function] [call site] 00031
6 assert [function] [call site] 00032
6 assert [function] [call site] 00033
6 ndpi_DeleteEntry [function] [call site] 00034
7 ndpi_free [function] [call site] 00035
8 free [function] [call site] 00036
5 func [function] [call site] 00037
5 assert [function] [call site] 00038
5 ndpi_DeleteEntry [function] [call site] 00039
5 assert [function] [call site] 00040
4 ndpi_DeleteEntry [function] [call site] 00041
3 ndpi_patricia_destroy [function] [call site] 00042
3 ndpi_free [function] [call site] 00043
1 FuzzedDataProvider::ConsumeIntegral [function] [call site] 00044
1 FuzzedDataProvider::ConsumeBool [function] [call site] 00045
1 FuzzedDataProvider::remaining_bytes [function] [call site] 00046
1 memcpy [function] [call site] 00047
1 FuzzedDataProvider::ConsumeBytes [function] [call site] 00048
1 FuzzedDataProvider::ConsumeIntegralInRange [function] [call site] 00049
1 memset [function] [call site] 00050
1 FuzzedDataProvider::ConsumeIntegral [function] [call site] 00051
1 FuzzedDataProvider::ConsumeIntegralInRange [function] [call site] 00052
1 ndpi_parse_ip_string [function] [call site] 00053
2 memset [function] [call site] 00054
2 strchr [function] [call site] 00055
2 inet_pton [function] [call site] 00056
2 inet_pton [function] [call site] 00057
1 ndpi_get_ip_string [function] [call site] 00058
2 ndpi_is_ipv6 [function] [call site] 00059
2 inet_ntop [function] [call site] 00060
2 ndpi_snprintf [function] [call site] 00061
3 va_start [function] [call site] 00062
3 ndpi_vsnprintf [function] [call site] 00063
4 vsnprintf_s [function] [call site] 00064
4 vsnprintf [function] [call site] 00065
3 va_end [function] [call site] 00066
1 ndpi_ptree_insert [function] [call site] 00067
2 ndpi_is_ipv6 [function] [call site] 00068
2 ndpi_fill_prefix_v6 [function] [call site] 00069
3 memset [function] [call site] 00070
3 memcpy [function] [call site] 00071
2 ndpi_fill_prefix_v4 [function] [call site] 00072
3 memset [function] [call site] 00073
2 ndpi_patricia_search_best [function] [call site] 00074
3 ndpi_patricia_search_best2 [function] [call site] 00075
4 assert [function] [call site] 00076
4 assert [function] [call site] 00077
4 ndpi_prefix_touchar [function] [call site] 00078
4 fprintf [function] [call site] 00079
4 ndpi_prefix_toa [function] [call site] 00080
5 ndpi_prefix_toa2 [function] [call site] 00081
6 ndpi_prefix_toa2x [function] [call site] 00082
4 BIT_TEST [function] [call site] 00083
4 fprintf [function] [call site] 00084
4 ndpi_prefix_toa [function] [call site] 00085
4 fprintf [function] [call site] 00086
4 fprintf [function] [call site] 00087
4 ndpi_prefix_toa [function] [call site] 00088
4 fprintf [function] [call site] 00089
4 fprintf [function] [call site] 00090
4 ndpi_prefix_toa [function] [call site] 00091
4 ndpi_prefix_toa [function] [call site] 00092
4 fprintf [function] [call site] 00093
4 fprintf [function] [call site] 00094
4 ndpi_prefix_toa [function] [call site] 00095
4 fprintf [function] [call site] 00096
4 fprintf [function] [call site] 00097
4 ndpi_prefix_toa [function] [call site] 00098
4 ndpi_comp_with_mask [function] [call site] 00099
5 htonl [function] [call site] 00100
4 ndpi_prefix_tochar [function] [call site] 00101
4 ndpi_prefix_tochar [function] [call site] 00102
4 fprintf [function] [call site] 00103
4 ndpi_prefix_toa [function] [call site] 00104
2 ndpi_patricia_lookup [function] [call site] 00105
3 fprintf [function] [call site] 00106
3 ndpi_prefix_toa [function] [call site] 00107
3 assert [function] [call site] 00108
3 assert [function] [call site] 00109
3 ndpi_calloc [function] [call site] 00110
3 ndpi_Ref_Prefix [function] [call site] 00111
4 ndpi_New_Prefix2 [function] [call site] 00112
5 ndpi_calloc [function] [call site] 00113
5 memcpy [function] [call site] 00114
5 ndpi_calloc [function] [call site] 00115
5 ndpi_calloc [function] [call site] 00116
5 memcpy [function] [call site] 00117
5 ndpi_calloc [function] [call site] 00118
5 memcpy [function] [call site] 00119
3 ndpi_free [function] [call site] 00120
3 fprintf [function] [call site] 00121
3 ndpi_prefix_toa [function] [call site] 00122
3 ndpi_prefix_touchar [function] [call site] 00123
3 BIT_TEST [function] [call site] 00124
3 fprintf [function] [call site] 00125
3 ndpi_prefix_toa [function] [call site] 00126
3 fprintf [function] [call site] 00127
3 fprintf [function] [call site] 00128
3 ndpi_prefix_toa [function] [call site] 00129
3 fprintf [function] [call site] 00130
3 assert [function] [call site] 00131
3 assert [function] [call site] 00132
3 fprintf [function] [call site] 00133
3 ndpi_prefix_toa [function] [call site] 00134
3 ndpi_prefix_touchar [function] [call site] 00135
3 BIT_TEST [function] [call site] 00136
3 assert [function] [call site] 00137
3 fprintf [function] [call site] 00138
3 fprintf [function] [call site] 00139
3 ndpi_prefix_toa [function] [call site] 00140
3 fprintf [function] [call site] 00141
3 fprintf [function] [call site] 00142
3 ndpi_prefix_toa [function] [call site] 00143
3 ndpi_Ref_Prefix [function] [call site] 00144
3 fprintf [function] [call site] 00145
3 ndpi_prefix_toa [function] [call site] 00146
3 assert [function] [call site] 00147
3 ndpi_calloc [function] [call site] 00148
3 ndpi_Ref_Prefix [function] [call site] 00149
3 ndpi_free [function] [call site] 00150
3 BIT_TEST [function] [call site] 00151
3 assert [function] [call site] 00152
3 assert [function] [call site] 00153
3 fprintf [function] [call site] 00154
3 ndpi_prefix_toa [function] [call site] 00155
3 BIT_TEST [function] [call site] 00156
3 assert [function] [call site] 00157
3 fprintf [function] [call site] 00158
3 ndpi_prefix_toa [function] [call site] 00159
3 ndpi_calloc [function] [call site] 00160
3 ndpi_Deref_Prefix [function] [call site] 00161
3 ndpi_DeleteEntry [function] [call site] 00162
3 BIT_TEST [function] [call site] 00163
3 assert [function] [call site] 00164
3 fprintf [function] [call site] 00165
3 ndpi_prefix_toa [function] [call site] 00166
1 FuzzedDataProvider::ConsumeBool [function] [call site] 00167
1 ndpi_load_ptree_file [function] [call site] 00168
2 fopen [function] [call site] 00169
2 fgets [function] [call site] 00170
2 strlen [function] [call site] 00171
2 strtok_r [function] [call site] 00172
2 strchr [function] [call site] 00173
2 strtok_r [function] [call site] 00174
2 inet_addr [function] [call site] 00175
2 add_to_ptree [function] [call site] 00176
3 ndpi_fill_prefix_v4 [function] [call site] 00177
3 ndpi_fill_prefix_v6 [function] [call site] 00178
3 ndpi_patricia_lookup [function] [call site] 00179
2 atoi [function] [call site] 00180
2 inet_pton [function] [call site] 00181
2 add_to_ptree [function] [call site] 00182
2 atoi [function] [call site] 00183
2 fclose [function] [call site] 00184
1 ndpi_load_ptree_file [function] [call site] 00185
1 ndpi_load_ptree_file [function] [call site] 00186
1 FuzzedDataProvider::ConsumeIntegral [function] [call site] 00187
1 FuzzedDataProvider::ConsumeBool [function] [call site] 00188
1 FuzzedDataProvider::remaining_bytes [function] [call site] 00189
1 memcpy [function] [call site] 00190
1 FuzzedDataProvider::ConsumeBytes [function] [call site] 00191
1 memset [function] [call site] 00192
1 FuzzedDataProvider::ConsumeIntegral [function] [call site] 00193
1 ndpi_ptree_match_addr [function] [call site] 00194
2 ndpi_is_ipv6 [function] [call site] 00195
2 ndpi_fill_prefix_v6 [function] [call site] 00196
2 ndpi_fill_prefix_v4 [function] [call site] 00197
2 ndpi_patricia_search_best [function] [call site] 00198
1 ndpi_ptree_match_addr [function] [call site] 00199
1 ndpi_ptree_destroy [function] [call site] 00200