Fuzz introspector: fuzz_encode_decode
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
11 4 idna.core.encode call site: {node_id} idna.core.uts46_remap
4 63 idna.core.valid_contextj call site: {node_id} idna.core._unot
3 0 EP call site: {node_id} idna.core.encode
2 115 idna.core.valid_string_length call site: {node_id} idna.core.decode
2 118 idna.core.decode call site: {node_id} idna.core.uts46_remap
1 47 idna.core._combining_class call site: {node_id} .ValueError
1 121 idna.core.decode call site: {node_id} s.split

Fuzzer calltree

0 ...fuzz_encode_decode.TestOneInput [function] [call site] 00000
1 atheris.FuzzedDataProvider [function] [call site] 00001
1 fdp.ConsumeString [function] [call site] 00002
1 idna.core.encode [function] [call site] 00003
2 .isinstance [function] [call site] 00004
2 s.decode [function] [call site] 00005
2 idna.core.uts46_remap [function] [call site] 00006
3 .enumerate [function] [call site] 00007
3 .ord [function] [call site] 00008
3 bisect.bisect_left [function] [call site] 00009
3 .len [function] [call site] 00010
3 .IndexError [function] [call site] 00011
3 idna.core._unot [function] [call site] 00012
3 .repr [function] [call site] 00013
3 unicodedata.normalize [function] [call site] 00014
2 s.split [function] [call site] 00015
2 _unicode_dots_re.split [function] [call site] 00016
2 idna.core.alabel [function] [call site] 00017
3 label.encode [function] [call site] 00018
3 idna.core.ulabel [function] [call site] 00019
4 .isinstance [function] [call site] 00020
4 label.encode [function] [call site] 00021
4 idna.core.check_label [function] [call site] 00022
5 .isinstance [function] [call site] 00023
5 label.decode [function] [call site] 00024
5 .len [function] [call site] 00025
5 idna.core.check_nfc [function] [call site] 00026
6 unicodedata.normalize [function] [call site] 00027
5 idna.core.check_hyphen_ok [function] [call site] 00028
5 idna.core.check_initial_combiner [function] [call site] 00029
6 unicodedata.category [function] [call site] 00030
5 .enumerate [function] [call site] 00031
5 .ord [function] [call site] 00032
5 idna.intranges.intranges_contain [function] [call site] 00033
6 idna.intranges._encode_range [function] [call site] 00034
6 bisect.bisect_left [function] [call site] 00035
6 idna.intranges._decode_range [function] [call site] 00036
6 .len [function] [call site] 00037
6 idna.intranges._decode_range [function] [call site] 00038
5 idna.intranges.intranges_contain [function] [call site] 00039
5 idna.core.valid_contextj [function] [call site] 00040
6 .ord [function] [call site] 00041
6 .ord [function] [call site] 00042
6 idna.core._combining_class [function] [call site] 00043
7 .chr [function] [call site] 00044
7 unicodedata.combining [function] [call site] 00045
7 .chr [function] [call site] 00046
7 unicodedata.name [function] [call site] 00047
7 .ValueError [function] [call site] 00048
6 .range [function] [call site] 00049
6 .ord [function] [call site] 00050
6 idnadata.joining_types.get [function] [call site] 00051
6 .ord [function] [call site] 00052
6 .ord [function] [call site] 00053
6 .ord [function] [call site] 00054
6 .len [function] [call site] 00055
6 .range [function] [call site] 00056
6 .ord [function] [call site] 00057
6 idnadata.joining_types.get [function] [call site] 00058
6 .ord [function] [call site] 00059
6 .ord [function] [call site] 00060
6 .ord [function] [call site] 00061
6 .ord [function] [call site] 00062
6 idna.core._combining_class [function] [call site] 00063
5 idna.core._unot [function] [call site] 00064
5 .repr [function] [call site] 00065
5 idna.core._unot [function] [call site] 00066
5 .repr [function] [call site] 00067
5 idna.intranges.intranges_contain [function] [call site] 00068
5 idna.core.valid_contexto [function] [call site] 00069
6 .ord [function] [call site] 00070
6 .len [function] [call site] 00071
6 .ord [function] [call site] 00072
6 .ord [function] [call site] 00073
6 .len [function] [call site] 00074
6 .len [function] [call site] 00075
6 idna.core._is_script [function] [call site] 00076
7 .ord [function] [call site] 00077
7 idna.intranges.intranges_contain [function] [call site] 00078
6 idna.core._is_script [function] [call site] 00079
6 idna.core._is_script [function] [call site] 00080
6 idna.core._is_script [function] [call site] 00081
6 idna.core._is_script [function] [call site] 00082
6 .ord [function] [call site] 00083
6 .ord [function] [call site] 00084
5 idna.core._unot [function] [call site] 00085
5 .repr [function] [call site] 00086
5 idna.core._unot [function] [call site] 00087
5 .repr [function] [call site] 00088
5 idna.core.check_bidi [function] [call site] 00089
6 .enumerate [function] [call site] 00090
6 unicodedata.bidirectional [function] [call site] 00091
6 .repr [function] [call site] 00092
6 unicodedata.bidirectional [function] [call site] 00093
6 .repr [function] [call site] 00094
6 .enumerate [function] [call site] 00095
6 unicodedata.bidirectional [function] [call site] 00096
4 label_bytes.lower [function] [call site] 00097
4 label_bytes.startswith [function] [call site] 00098
4 .len [function] [call site] 00099
4 label_bytes.decode [function] [call site] 00100
4 idna.core.check_label [function] [call site] 00101
4 label_bytes.decode [function] [call site] 00102
4 label_bytes.decode [function] [call site] 00103
4 idna.core.check_label [function] [call site] 00104
3 idna.core.valid_label_length [function] [call site] 00105
4 .len [function] [call site] 00106
3 .str [function] [call site] 00107
3 idna.core.check_label [function] [call site] 00108
3 idna.core._punycode [function] [call site] 00109
4 s.encode [function] [call site] 00110
3 idna.core.valid_label_length [function] [call site] 00111
2 result.append [function] [call site] 00112
2 result.append [function] [call site] 00113
2 idna.core.valid_string_length [function] [call site] 00114
3 .len [function] [call site] 00115
1 fdp.ConsumeString [function] [call site] 00116
1 idna.core.decode [function] [call site] 00117
2 .isinstance [function] [call site] 00118
2 s.decode [function] [call site] 00119
2 idna.core.uts46_remap [function] [call site] 00120
2 _unicode_dots_re.split [function] [call site] 00121
2 s.split [function] [call site] 00122
2 idna.core.ulabel [function] [call site] 00123
2 result.append [function] [call site] 00124
2 result.append [function] [call site] 00125