Fuzz introspector: fuzztest_proto3_pointer
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
13 204 pb_encode call site: 00204 encode_extension_field
8 161 validate_message call site: 00161 __assert_fail
7 126 pb_skip_field call site: 00126 pb_make_string_substream
7 136 pb_dec_submessage call site: 00136 decode_basic_field
7 148 decode_static_field call site: 00148 pb_message_set_to_defaults
5 21 pb_message_set_to_defaults call site: 00021 pb_message_set_to_defaults
4 93 pb_field_iter_find_extension call site: 00093 decode_extension
3 144 pb_message_set_to_defaults call site: 00144 decode_basic_field
2 14 pb_decode_inner call site: 00014 pb_decode_tag
2 32 pb_release_union_field call site: 00032 pb_release_single_field
2 112 pb_close_string_substream call site: 00112 allocate_field
2 117 decode_pointer_field call site: 00117 decode_callback_field

Fuzzer calltree

0 LLVMFuzzerTestOneInput [function] [call site] 00000
1 do_roundtrips [function] [call site] 00001
2 get_alloc_count [function] [call site] 00002
2 do_decode [function] [call site] 00003
3 get_alloc_count [function] [call site] 00004
3 malloc_with_check [function] [call site] 00005
4 round_blocksize [function] [call site] 00006
3 malloc_with_check [function] [call site] 00007
3 __assert_fail [call site] 00008
3 pb_istream_from_buffer [function] [call site] 00009
3 pb_decode_ex [function] [call site] 00010
4 pb_decode_inner [function] [call site] 00011
5 pb_field_iter_begin [function] [call site] 00012
6 load_descriptor_values [function] [call site] 00013
5 pb_message_set_to_defaults [function] [call site] 00014
6 pb_istream_from_buffer [function] [call site] 00015
6 pb_decode_tag [function] [call site] 00016
7 pb_decode_varint32_eof [function] [call site] 00017
8 pb_readbyte [function] [call site] 00018
8 strcmp [call site] 00019
8 pb_readbyte [function] [call site] 00020
6 pb_field_set_to_default [function] [call site] 00021
7 pb_field_iter_begin_extension [function] [call site] 00022
8 pb_field_iter_begin [function] [call site] 00023
8 pb_field_iter_begin [function] [call site] 00024
7 pb_message_set_to_defaults [function] [call site] 00025
8 decode_field [function] [call site] 00026
9 pb_release_union_field [function] [call site] 00027
10 pb_field_iter_find [function] [call site] 00028
11 advance_iterator [function] [call site] 00029
11 load_descriptor_values [function] [call site] 00030
11 load_descriptor_values [function] [call site] 00031
10 pb_release_single_field [function] [call site] 00032
11 pb_field_iter_begin_extension [function] [call site] 00033
11 pb_release_single_field [function] [call site] 00034
12 pb_release [function] [call site] 00035
13 pb_field_iter_begin [function] [call site] 00036
13 pb_release_single_field [function] [call site] 00037
14 free_with_check [function] [call site] 00038
15 __assert_fail [call site] 00039
15 __assert_fail [call site] 00040
15 __assert_fail [call site] 00041
15 __assert_fail [call site] 00042
14 free_with_check [function] [call site] 00043
13 pb_field_iter_next [function] [call site] 00044
14 advance_iterator [function] [call site] 00045
14 load_descriptor_values [function] [call site] 00046
9 decode_static_field [function] [call site] 00047
10 decode_basic_field [function] [call site] 00048
11 pb_dec_bool [function] [call site] 00049
12 pb_decode_bool [function] [call site] 00050
13 pb_decode_varint32 [function] [call site] 00051
14 pb_decode_varint32_eof [function] [call site] 00052
11 pb_dec_varint [function] [call site] 00053
12 pb_decode_varint [function] [call site] 00054
13 pb_readbyte [function] [call site] 00055
12 pb_decode_svarint [function] [call site] 00056
13 pb_decode_varint [function] [call site] 00057
12 pb_decode_varint [function] [call site] 00058
11 pb_decode_fixed32 [function] [call site] 00059
12 pb_read [function] [call site] 00060
13 pb_read [function] [call site] 00061
14 pb_read [function] [call site] 00062
11 pb_decode_fixed64 [function] [call site] 00063
12 pb_read [function] [call site] 00064
11 pb_dec_bytes [function] [call site] 00065
12 pb_decode_varint32 [function] [call site] 00066
12 allocate_field [function] [call site] 00067
13 realloc_with_check [function] [call site] 00068
14 malloc_with_check [function] [call site] 00069
14 __assert_fail [call site] 00070
14 __assert_fail [call site] 00071
14 __assert_fail [call site] 00072
14 __assert_fail [call site] 00073
14 round_blocksize [function] [call site] 00074
14 round_blocksize [function] [call site] 00075
14 realloc [call site] 00076
14 free_with_check [function] [call site] 00077
12 pb_read [function] [call site] 00078
11 pb_dec_string [function] [call site] 00079
12 pb_decode_varint32 [function] [call site] 00080
12 allocate_field [function] [call site] 00081
12 pb_read [function] [call site] 00082
11 pb_dec_submessage [function] [call site] 00083
12 pb_make_string_substream [function] [call site] 00084
13 pb_decode_varint32 [function] [call site] 00085
12 pb_decode_inner [function] [call site] 00086
13 decode_next_tag [function] [call site] 00087
14 pb_decode_tag [function] [call site] 00088
13 pb_field_iter_find [function] [call site] 00089
13 pb_field_iter_find_extension [function] [call site] 00090
14 advance_iterator [function] [call site] 00091
14 load_descriptor_values [function] [call site] 00092
14 load_descriptor_values [function] [call site] 00093
13 decode_extension [function] [call site] 00094
14 default_extension_decoder [function] [call site] 00095
15 pb_field_iter_begin_extension [function] [call site] 00096
15 decode_field [function] [call site] 00097
16 decode_pointer_field [function] [call site] 00098
17 pb_release_single_field [function] [call site] 00099
17 decode_basic_field [function] [call site] 00100
18 pb_dec_fixed_length_bytes [function] [call site] 00101
19 pb_decode_varint32 [function] [call site] 00102
19 pb_read [function] [call site] 00103
17 allocate_field [function] [call site] 00104
17 initialize_pointer_field [function] [call site] 00105
17 decode_basic_field [function] [call site] 00106
17 pb_make_string_substream [function] [call site] 00107
17 allocate_field [function] [call site] 00108
17 initialize_pointer_field [function] [call site] 00109
17 decode_basic_field [function] [call site] 00110
17 pb_close_string_substream [function] [call site] 00111
18 pb_read [function] [call site] 00112
17 allocate_field [function] [call site] 00113
17 initialize_pointer_field [function] [call site] 00114
17 allocate_field [function] [call site] 00115
17 initialize_pointer_field [function] [call site] 00116
17 decode_basic_field [function] [call site] 00117
16 decode_callback_field [function] [call site] 00118
17 pb_skip_field [function] [call site] 00119
18 pb_skip_varint [function] [call site] 00120
19 pb_read [function] [call site] 00121
18 pb_read [function] [call site] 00122
18 pb_skip_string [function] [call site] 00123
19 pb_decode_varint32 [function] [call site] 00124
19 pb_read [function] [call site] 00125
18 pb_read [function] [call site] 00126
17 pb_make_string_substream [function] [call site] 00127
17 pb_close_string_substream [function] [call site] 00128
17 read_raw_value [function] [call site] 00129
18 pb_read [function] [call site] 00130
18 pb_read [function] [call site] 00131
18 pb_read [function] [call site] 00132
17 pb_istream_from_buffer [function] [call site] 00133
13 pb_skip_field [function] [call site] 00134
13 decode_field [function] [call site] 00135
12 pb_close_string_substream [function] [call site] 00136
10 decode_basic_field [function] [call site] 00137
10 pb_make_string_substream [function] [call site] 00138
10 decode_basic_field [function] [call site] 00139
10 pb_close_string_substream [function] [call site] 00140
10 pb_field_iter_begin [function] [call site] 00141
10 pb_message_set_to_defaults [function] [call site] 00142
11 pb_decode_tag [function] [call site] 00143
11 pb_field_iter_next [function] [call site] 00144
10 decode_basic_field [function] [call site] 00145
10 pb_field_iter_begin [function] [call site] 00146
10 pb_message_set_to_defaults [function] [call site] 00147
10 decode_basic_field [function] [call site] 00148
7 pb_field_iter_begin [function] [call site] 00149
7 pb_message_set_to_defaults [function] [call site] 00150
7 pb_field_iter_begin [function] [call site] 00151
7 pb_message_set_to_defaults [function] [call site] 00152
4 pb_make_string_substream [function] [call site] 00153
4 pb_decode_inner [function] [call site] 00154
4 pb_close_string_substream [function] [call site] 00155
4 pb_release [function] [call site] 00156
3 validate_message [function] [call site] 00157
4 pb_field_iter_begin_const [function] [call site] 00158
5 pb_const_cast [function] [call site] 00159
5 pb_field_iter_begin [function] [call site] 00160
4 validate_static [function] [call site] 00161
5 __assert_fail [call site] 00162
5 memcmp [call site] 00163
5 __assert_fail [call site] 00164
5 strlen [call site] 00165
5 __assert_fail [call site] 00166
5 __assert_fail [call site] 00167
5 memcmp [call site] 00168
5 __assert_fail [call site] 00169
5 validate_message [function] [call site] 00170
6 validate_pointer [function] [call site] 00171
7 __assert_fail [call site] 00172
7 get_allocation_size [function] [call site] 00173
7 __assert_fail [call site] 00174
7 get_allocation_size [function] [call site] 00175
7 strlen [call site] 00176
7 get_allocation_size [function] [call site] 00177
7 __assert_fail [call site] 00178
7 get_allocation_size [function] [call site] 00179
7 __assert_fail [call site] 00180
7 memcmp [call site] 00181
7 __assert_fail [call site] 00182
7 validate_message [function] [call site] 00183
8 pb_field_iter_next [function] [call site] 00184
3 fprintf [call site] 00185
3 __assert_fail [call site] 00186
3 pb_release [function] [call site] 00187
3 free_with_check [function] [call site] 00188
3 free_with_check [function] [call site] 00189
3 get_alloc_count [function] [call site] 00190
3 __assert_fail [call site] 00191
2 do_roundtrip [function] [call site] 00192
3 malloc_with_check [function] [call site] 00193
3 malloc_with_check [function] [call site] 00194
3 __assert_fail [call site] 00195
3 pb_istream_from_buffer [function] [call site] 00196
3 pb_decode [function] [call site] 00197
4 pb_decode_ex [function] [call site] 00198
3 fprintf [call site] 00199
3 __assert_fail [call site] 00200
3 validate_message [function] [call site] 00201
3 pb_ostream_from_buffer [function] [call site] 00202
3 pb_encode [function] [call site] 00203
4 pb_field_iter_begin_const [function] [call site] 00204
4 encode_extension_field [function] [call site] 00205
5 default_extension_encoder [function] [call site] 00206
6 pb_field_iter_begin_extension_const [function] [call site] 00207
7 pb_const_cast [function] [call site] 00208
7 pb_field_iter_begin_extension [function] [call site] 00209
6 encode_field [function] [call site] 00210
7 safe_read_bool [function] [call site] 00211
7 pb_check_proto3_default_value [function] [call site] 00212
8 safe_read_bool [function] [call site] 00213
8 pb_field_iter_begin [function] [call site] 00214
8 pb_check_proto3_default_value [function] [call site] 00215
9 pb_field_iter_next [function] [call site] 00216
7 encode_callback_field [function] [call site] 00217
7 encode_array [function] [call site] 00218
8 pb_encode_tag [function] [call site] 00219
9 pb_encode_varint [function] [call site] 00220
10 pb_write [function] [call site] 00221
10 pb_encode_varint_32 [function] [call site] 00222
11 pb_write [function] [call site] 00223
8 pb_enc_varint [function] [call site] 00224
9 pb_encode_varint [function] [call site] 00225
9 pb_encode_svarint [function] [call site] 00226
10 pb_encode_varint [function] [call site] 00227
9 pb_encode_varint [function] [call site] 00228
8 pb_encode_varint [function] [call site] 00229
8 pb_write [function] [call site] 00230
8 pb_enc_fixed [function] [call site] 00231
9 pb_encode_fixed32 [function] [call site] 00232
10 pb_write [function] [call site] 00233
9 pb_encode_fixed64 [function] [call site] 00234
10 pb_write [function] [call site] 00235
8 pb_enc_varint [function] [call site] 00236
8 pb_encode_tag_for_field [function] [call site] 00237
9 pb_encode_tag [function] [call site] 00238
8 pb_encode_varint [function] [call site] 00239
8 encode_basic_field [function] [call site] 00240
9 pb_encode_tag_for_field [function] [call site] 00241
9 pb_enc_bool [function] [call site] 00242
10 safe_read_bool [function] [call site] 00243
10 pb_encode_varint [function] [call site] 00244
9 pb_enc_varint [function] [call site] 00245
9 pb_enc_fixed [function] [call site] 00246
9 pb_enc_bytes [function] [call site] 00247
10 pb_encode_string [function] [call site] 00248
11 pb_encode_varint [function] [call site] 00249
11 pb_write [function] [call site] 00250
10 pb_encode_string [function] [call site] 00251
9 pb_enc_string [function] [call site] 00252
10 pb_encode_string [function] [call site] 00253
9 pb_enc_submessage [function] [call site] 00254
10 pb_encode_submessage [function] [call site] 00255
11 pb_encode [function] [call site] 00256
12 encode_field [function] [call site] 00257
13 encode_basic_field [function] [call site] 00258
14 pb_enc_fixed_length_bytes [function] [call site] 00259
15 pb_encode_string [function] [call site] 00260
12 pb_field_iter_next [function] [call site] 00261
11 pb_encode_varint [function] [call site] 00262
11 pb_write [function] [call site] 00263
11 pb_encode [function] [call site] 00264
8 encode_basic_field [function] [call site] 00265
3 strcmp [call site] 00266
3 fprintf [call site] 00267
3 __assert_fail [call site] 00268
3 xor32_checksum [function] [call site] 00269
3 pb_release [function] [call site] 00270
3 pb_istream_from_buffer [function] [call site] 00271
3 pb_decode [function] [call site] 00272
3 fprintf [call site] 00273
3 __assert_fail [call site] 00274
3 validate_message [function] [call site] 00275
3 pb_ostream_from_buffer [function] [call site] 00276
3 pb_encode [function] [call site] 00277
3 fprintf [call site] 00278
3 __assert_fail [call site] 00279
3 xor32_checksum [function] [call site] 00280
3 __assert_fail [call site] 00281
3 __assert_fail [call site] 00282
3 pb_release [function] [call site] 00283
3 free_with_check [function] [call site] 00284
3 free_with_check [function] [call site] 00285
2 do_stream_decode [function] [call site] 00286
3 get_alloc_count [function] [call site] 00287
3 malloc_with_check [function] [call site] 00288
3 flakystream_init [function] [call site] 00289
3 pb_decode_ex [function] [call site] 00290
3 validate_message [function] [call site] 00291
3 fprintf [call site] 00292
3 __assert_fail [call site] 00293
3 pb_release [function] [call site] 00294
3 free_with_check [function] [call site] 00295
3 get_alloc_count [function] [call site] 00296
3 __assert_fail [call site] 00297
2 get_alloc_count [function] [call site] 00298
2 __assert_fail [call site] 00299