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 69 ndpi_patricia_search_best2 call site: 00069 fprintf
6 110 ndpi_patricia_lookup call site: 00110 fprintf
6 123 ndpi_patricia_lookup call site: 00123 fprintf
4 64 ndpi_patricia_search_best2 call site: 00064 fprintf
2 21 ndpi_DeleteEntry call site: 00021
2 88 ndpi_patricia_search_best2 call site: 00088 fprintf
2 91 ndpi_ptree_insert call site: 00091 fprintf
2 103 ndpi_New_Prefix2 call site: 00103 ndpi_calloc
2 106 ndpi_patricia_lookup call site: 00106 fprintf
2 118 ndpi_patricia_lookup call site: 00118 fprintf
2 130 ndpi_patricia_lookup call site: 00130 fprintf
2 139 ndpi_patricia_lookup call site: 00139 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 set_ndpi_malloc [function] [call site] 00003
3 set_ndpi_free [function] [call site] 00004
2 fuzz_set_alloc_seed [function] [call site] 00005
1 ndpi_ptree_create [function] [call site] 00006
2 ndpi_patricia_new [function] [call site] 00009
2 ndpi_patricia_new [function] [call site] 00013
2 ndpi_ptree_destroy [function] [call site] 00014
3 ndpi_patricia_destroy [function] [call site] 00015
4 ndpi_Clear_Patricia [function] [call site] 00016
4 ndpi_DeleteEntry [function] [call site] 00027
3 ndpi_patricia_destroy [function] [call site] 00028
3 ndpi_free [function] [call site] 00029
1 FuzzedDataProvider::ConsumeIntegral [function] [call site] 00030
1 FuzzedDataProvider::ConsumeBool [function] [call site] 00031
1 FuzzedDataProvider::remaining_bytes [function] [call site] 00032
1 FuzzedDataProvider::ConsumeBytes [function] [call site] 00034
1 FuzzedDataProvider::ConsumeIntegralInRange [function] [call site] 00035
1 FuzzedDataProvider::ConsumeIntegral [function] [call site] 00037
1 FuzzedDataProvider::ConsumeIntegralInRange [function] [call site] 00038
1 ndpi_parse_ip_string [function] [call site] 00039
1 ndpi_get_ip_string [function] [call site] 00044
2 ndpi_is_ipv6 [function] [call site] 00045
2 inet_ntop [function] [call site] 00046
2 ndpi_snprintf [function] [call site] 00047
3 ndpi_vsnprintf [function] [call site] 00049
4 vsnprintf_s [function] [call site] 00050
4 vsnprintf [function] [call site] 00051
1 ndpi_ptree_insert [function] [call site] 00053
2 ndpi_is_ipv6 [function] [call site] 00054
2 ndpi_fill_prefix_v6 [function] [call site] 00055
2 ndpi_fill_prefix_v4 [function] [call site] 00058
2 ndpi_patricia_search_best [function] [call site] 00060
3 ndpi_patricia_search_best2 [function] [call site] 00061
4 ndpi_prefix_touchar [function] [call site] 00064
4 ndpi_prefix_toa [function] [call site] 00066
5 ndpi_prefix_toa2 [function] [call site] 00067
6 ndpi_prefix_toa2x [function] [call site] 00068
4 ndpi_prefix_toa [function] [call site] 00071
4 ndpi_prefix_toa [function] [call site] 00074
4 ndpi_prefix_toa [function] [call site] 00077
4 ndpi_prefix_toa [function] [call site] 00078
4 ndpi_prefix_toa [function] [call site] 00081
4 ndpi_prefix_toa [function] [call site] 00084
4 ndpi_comp_with_mask [function] [call site] 00085
4 ndpi_prefix_tochar [function] [call site] 00087
4 ndpi_prefix_tochar [function] [call site] 00088
4 ndpi_prefix_toa [function] [call site] 00090
2 ndpi_patricia_lookup [function] [call site] 00091
3 ndpi_prefix_toa [function] [call site] 00093
3 ndpi_calloc [function] [call site] 00096
3 ndpi_Ref_Prefix [function] [call site] 00097
4 ndpi_New_Prefix2 [function] [call site] 00098
3 ndpi_free [function] [call site] 00106
3 ndpi_prefix_toa [function] [call site] 00108
3 ndpi_prefix_touchar [function] [call site] 00109
3 ndpi_prefix_toa [function] [call site] 00112
3 ndpi_prefix_toa [function] [call site] 00115
3 ndpi_prefix_toa [function] [call site] 00120
3 ndpi_prefix_touchar [function] [call site] 00121
3 ndpi_prefix_toa [function] [call site] 00126
3 ndpi_prefix_toa [function] [call site] 00129
3 ndpi_Ref_Prefix [function] [call site] 00130
3 ndpi_prefix_toa [function] [call site] 00132
3 ndpi_calloc [function] [call site] 00134
3 ndpi_Ref_Prefix [function] [call site] 00135
3 ndpi_free [function] [call site] 00136
3 ndpi_prefix_toa [function] [call site] 00141
3 ndpi_prefix_toa [function] [call site] 00145
3 ndpi_calloc [function] [call site] 00146
3 ndpi_Deref_Prefix [function] [call site] 00147
3 ndpi_DeleteEntry [function] [call site] 00148
3 ndpi_prefix_toa [function] [call site] 00152
1 FuzzedDataProvider::ConsumeBool [function] [call site] 00153
1 ndpi_load_ptree_file [function] [call site] 00154
1 ndpi_load_ptree_file [function] [call site] 00171
1 ndpi_load_ptree_file [function] [call site] 00172
1 FuzzedDataProvider::ConsumeIntegral [function] [call site] 00173
1 FuzzedDataProvider::ConsumeBool [function] [call site] 00174
1 FuzzedDataProvider::remaining_bytes [function] [call site] 00175
1 FuzzedDataProvider::ConsumeBytes [function] [call site] 00177
1 FuzzedDataProvider::ConsumeIntegral [function] [call site] 00179
1 ndpi_ptree_match_addr [function] [call site] 00180
2 ndpi_is_ipv6 [function] [call site] 00181
2 ndpi_fill_prefix_v6 [function] [call site] 00182
2 ndpi_fill_prefix_v4 [function] [call site] 00183
2 ndpi_patricia_search_best [function] [call site] 00184
1 ndpi_ptree_match_addr [function] [call site] 00185
1 ndpi_ptree_destroy [function] [call site] 00186