Fuzz introspector: decode_fuzzer
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
24 24 1 :

['INT123_make_conv16to8_table']

24 46 INT123_set_synth_functions call site: 00175 /src/mpg123/src/libmpg123/optimize.c:423
4 4 1 :

['INT123_do_equalizer']

14 14 INT123_synth_1to1_stereo_avx call site: 00000 /src/mpg123/src/libmpg123/synth.c:510
4 4 1 :

['find_synth']

4 13 find_dectype call site: 00165 /src/mpg123/src/libmpg123/optimize.c:235
2 2 1 :

['strcasecmp']

2 2 INT123_dectype call site: 00058 /src/mpg123/src/libmpg123/optimize.c:927
0 303 3 :

['enc_chan_fit', 'INT123_frame_freq', 'rate2num']

0 317 INT123_frame_output_format call site: 00129 /src/mpg123/src/libmpg123/format.c:290
0 105 3 :

['imin', 'imax', 'cap_fit']

0 105 enc_chan_fit call site: 00118 /src/mpg123/src/libmpg123/format.c:194
0 54 2 :

['INT123_frame_exit', 'free']

0 54 mpg123_parnew call site: 00057 /src/mpg123/src/libmpg123/libmpg123.c:107
0 28 1 :

['INT123_frame_index_setup']

0 30 mpg123_param call site: 00073 /src/mpg123/src/libmpg123/libmpg123.c:170
0 20 1 :

['mpg123_grow_string']

0 20 store_id3_text call site: 00273 /src/mpg123/src/libmpg123/id3.c:345
0 10 2 :

['INT123_set_pointer', 'getbits']

0 10 halfspeed_do call site: 00228 /src/mpg123/src/libmpg123/parse.c:457
0 6 1 :

['mpg123_free_string']

16 157 process_extra call site: 00325 /src/mpg123/src/libmpg123/id3.c:695
0 6 1 :

['mpg123_free_string']

0 14 process_comment call site: 00295 /src/mpg123/src/libmpg123/id3.c:605

Fuzzer calltree

0 LLVMFuzzerTestOneInput [function] [call site] 00000
1 mpg123_init [function] [call site] 00001
1 mpg123_new [function] [call site] 00002
2 mpg123_parnew [function] [call site] 00003
3 INT123_frame_init_par [function] [call site] 00005
4 wrap_getcpuflags [function] [call site] 00006
5 INT123_getcpuflags [call site] 00007
4 INT123_defdec [function] [call site] 00008
4 INT123_decclass [function] [call site] 00009
4 mpg123_reset_eq [function] [call site] 00010
4 INT123_init_icy [function] [call site] 00011
4 INT123_init_id3 [function] [call site] 00012
5 null_id3_links [function] [call site] 00013
4 INT123_invalidate_format [function] [call site] 00014
4 frame_default_pars [function] [call site] 00015
5 mpg123_fmt_all [function] [call site] 00016
6 fprintf [call site] 00017
4 INT123_bc_prepare [function] [call site] 00019
5 INT123_bc_poolsize [function] [call site] 00020
4 frame_fixed_reset [function] [call site] 00022
5 frame_icy_reset [function] [call site] 00023
5 INT123_open_bad [function] [call site] 00024
6 INT123_clear_icy [function] [call site] 00025
7 INT123_init_icy [function] [call site] 00026
5 INT123_frame_gapless_init [function] [call site] 00028
5 INT123_reset_id3 [function] [call site] 00029
6 INT123_exit_id3 [function] [call site] 00030
7 free_id3_picture [function] [call site] 00031
8 free_mpg123_picture [function] [call site] 00032
9 mpg123_free_string [function] [call site] 00033
10 mpg123_init_string [function] [call site] 00034
9 mpg123_free_string [function] [call site] 00035
7 free_id3_text [function] [call site] 00036
8 free_mpg123_text [function] [call site] 00037
9 mpg123_free_string [function] [call site] 00038
9 mpg123_free_string [function] [call site] 00039
7 free_id3_text [function] [call site] 00040
7 free_id3_text [function] [call site] 00041
6 INT123_init_id3 [function] [call site] 00042
5 INT123_reset_icy [function] [call site] 00043
6 INT123_clear_icy [function] [call site] 00044
6 INT123_init_icy [function] [call site] 00045
4 INT123_fi_init [function] [call site] 00046
4 INT123_frame_index_setup [function] [call site] 00048
5 INT123_fi_resize [function] [call site] 00049
6 INT123_safe_realloc [function] [call site] 00052
7 realloc [call site] 00053
5 INT123_fi_resize [function] [call site] 00055
5 fprintf [call site] 00056
3 INT123_frame_cpu_opt [function] [call site] 00057
4 INT123_dectype [function] [call site] 00058
5 strcasecmp [call site] 00059
4 INT123_dct36 [function] [call site] 00060
4 INT123_dct36_avx [call site] 00061
4 INT123_dct36_x86_64 [call site] 00062
4 INT123_decclass [function] [call site] 00063
4 INT123_frame_dither_init [function] [call site] 00064
5 INT123_dither_table_init [function] [call site] 00065
6 highpass_tpdf_noise [function] [call site] 00066
7 rand_xorshift32 [function] [call site] 00067
4 fprintf [call site] 00068
4 fprintf [call site] 00069
4 fprintf [call site] 00070
1 mpg123_param2 [function] [call site] 00071
2 mpg123_param [function] [call site] 00072
3 mpg123_par [function] [call site] 00073
3 INT123_frame_index_setup [function] [call site] 00074
3 INT123_bc_poolsize [function] [call site] 00075
1 mpg123_open_feed [function] [call site] 00076
2 mpg123_close [function] [call site] 00077
3 INT123_invalidate_format [function] [call site] 00078
3 INT123_frame_reset [function] [call site] 00079
4 INT123_frame_buffers_reset [function] [call site] 00080
5 frame_decode_buffers_reset [function] [call site] 00081
4 frame_fixed_reset [function] [call site] 00082
4 frame_free_toc [function] [call site] 00083
4 INT123_fi_reset [function] [call site] 00084
2 INT123_open_feed [function] [call site] 00086
3 fprintf [call site] 00087
3 INT123_clear_icy [function] [call site] 00088
1 mpg123_delete [function] [call site] 00089
2 mpg123_close [function] [call site] 00090
2 INT123_frame_exit [function] [call site] 00091
3 frame_free_buffers [function] [call site] 00092
3 frame_free_toc [function] [call site] 00093
3 INT123_fi_exit [function] [call site] 00094
4 INT123_fi_init [function] [call site] 00095
3 INT123_exit_id3 [function] [call site] 00096
3 INT123_clear_icy [function] [call site] 00097
3 INT123_bc_cleanup [function] [call site] 00098
4 buffy_del_chain [function] [call site] 00099
5 buffy_del [function] [call site] 00100
1 mpg123_outblock [function] [call site] 00101
2 mpg123_safe_buffer [function] [call site] 00102
1 mpg123_tellframe [function] [call site] 00103
1 mpg123_tell_stream [function] [call site] 00104
1 mpg123_decode [function] [call site] 00105
2 mpg123_feed [function] [call site] 00106
3 INT123_feed_more [function] [call site] 00107
4 fprintf [call site] 00112
2 INT123_decode_update [function] [call site] 00113
3 fprintf [call site] 00114
3 INT123_frame_freq [function] [call site] 00115
3 INT123_frame_output_format [function] [call site] 00116
4 enc_chan_fit [function] [call site] 00126
4 fprintf [call site] 00127
4 INT123_frame_freq [function] [call site] 00128
4 enc_chan_fit [function] [call site] 00129
4 INT123_frame_freq [function] [call site] 00130
4 enc_chan_fit [function] [call site] 00131
4 INT123_frame_freq [function] [call site] 00132
4 enc_chan_fit [function] [call site] 00133
4 INT123_frame_freq [function] [call site] 00134
4 enc_chan_fit [function] [call site] 00135
4 INT123_frame_freq [function] [call site] 00136
4 enc_chan_fit [function] [call site] 00137
4 INT123_frame_freq [function] [call site] 00138
4 enc_chan_fit [function] [call site] 00139
4 INT123_frame_freq [function] [call site] 00140
4 enc_chan_fit [function] [call site] 00142
4 enc_chan_fit [function] [call site] 00143
4 enc_chan_fit [function] [call site] 00144
4 enc_chan_fit [function] [call site] 00145
4 INT123_frame_freq [function] [call site] 00146
4 fprintf [call site] 00147
4 mpg123_encsize [function] [call site] 00148
4 fprintf [call site] 00149
4 mpg123_encsize [function] [call site] 00150
3 INT123_outblock_bytes [function] [call site] 00151
3 INT123_synth_ntom_set_step [function] [call site] 00152
4 INT123_frame_freq [function] [call site] 00153
4 fprintf [call site] 00154
4 fprintf [call site] 00155
4 fprintf [call site] 00156
4 INT123_ntom_val [function] [call site] 00157
3 INT123_frame_freq [function] [call site] 00158
3 INT123_frame_freq [function] [call site] 00159
3 INT123_frame_freq [function] [call site] 00160
3 INT123_outblock_bytes [function] [call site] 00161
3 INT123_set_synth_functions [function] [call site] 00162
4 fprintf [call site] 00163
4 fprintf [call site] 00164
4 find_dectype [function] [call site] 00165
5 find_synth [function] [call site] 00166
5 INT123_decclass [function] [call site] 00167
5 fprintf [call site] 00168
4 INT123_frame_buffers [function] [call site] 00169
5 align_the_pointer [function] [call site] 00170
5 align_the_pointer [function] [call site] 00171
5 align_the_pointer [function] [call site] 00172
5 align_the_pointer [function] [call site] 00173
5 frame_decode_buffers_reset [function] [call site] 00174
4 fprintf [call site] 00175
4 INT123_make_conv16to8_table [function] [call site] 00176
5 fprintf [call site] 00177
5 fprintf [call site] 00178
5 fprintf [call site] 00179
4 fprintf [call site] 00180
4 INT123_init_layer3_stuff [function] [call site] 00181
4 INT123_init_layer12_stuff [function] [call site] 00182
4 INT123_init_layer3_stuff [function] [call site] 00183
4 INT123_init_layer12_stuff [function] [call site] 00184
3 INT123_frame_outbuffer [function] [call site] 00185
4 fprintf [call site] 00186
4 align_the_pointer [function] [call site] 00187
3 INT123_do_rva [function] [call site] 00188
4 fprintf [call site] 00190
4 fprintf [call site] 00191
2 decode_the_frame [function] [call site] 00192
3 INT123_frame_expect_outsamples [function] [call site] 00193
4 INT123_ntom_frame_outsamples [function] [call site] 00194
4 fprintf [call site] 00195
3 INT123_decoder_synth_bytes [function] [call site] 00196
3 fprintf [call site] 00197
3 zero_byte [function] [call site] 00198
3 INT123_ntom_set_ntom [function] [call site] 00199
4 INT123_ntom_val [function] [call site] 00200
3 INT123_postprocess_buffer [function] [call site] 00201
4 conv_s32_to_u32 [function] [call site] 00202
4 conv_s32_to_u32 [function] [call site] 00203
4 chop_fourth_byte [function] [call site] 00204
4 chop_fourth_byte [function] [call site] 00205
4 conv_s16_to_u16 [function] [call site] 00206
4 conv_s16_to_f32 [function] [call site] 00207
5 fprintf [call site] 00208
4 conv_s16_to_s32 [function] [call site] 00209
5 fprintf [call site] 00210
4 conv_s16_to_s32 [function] [call site] 00211
4 conv_s32_to_u32 [function] [call site] 00212
4 conv_s16_to_s32 [function] [call site] 00213
4 conv_s32_to_u32 [function] [call site] 00214
4 chop_fourth_byte [function] [call site] 00215
4 conv_s16_to_s32 [function] [call site] 00216
4 chop_fourth_byte [function] [call site] 00217
4 mpg123_encsize [function] [call site] 00218
2 frame_buffercheck [function] [call site] 00219
3 INT123_samples_to_bytes [function] [call site] 00220
3 fprintf [call site] 00221
3 INT123_samples_to_bytes [function] [call site] 00222
3 fprintf [call site] 00223
2 get_next_frame [function] [call site] 00224
3 INT123_decode_update [function] [call site] 00225
3 INT123_ntom_set_ntom [function] [call site] 00226
3 INT123_read_frame [function] [call site] 00227
4 halfspeed_do [function] [call site] 00228
5 INT123_set_pointer [function] [call site] 00229
5 getbits [function] [call site] 00230
6 fprintf [call site] 00231
4 head_check [function] [call site] 00232
4 skip_junk [function] [call site] 00233
5 handle_id3v2 [function] [call site] 00234
6 INT123_parse_new_id3 [function] [call site] 00235
7 fprintf [call site] 00236
7 fprintf [call site] 00237
7 fprintf [call site] 00238
7 fprintf [call site] 00239
7 fprintf [call site] 00240
7 fprintf [call site] 00241
7 store_id3v2 [function] [call site] 00242
8 fprintf [call site] 00243
7 fprintf [call site] 00244
7 INT123_reset_id3 [function] [call site] 00245
7 fprintf [call site] 00246
7 fprintf [call site] 00247
7 fprintf [call site] 00248
7 fprintf [call site] 00249
7 fprintf [call site] 00250
7 INT123_reset_id3 [function] [call site] 00251
7 strncpy [call site] 00252
7 fprintf [call site] 00253
7 fprintf [call site] 00254
7 fprintf [call site] 00255
7 promote_framename [function] [call site] 00256
8 strncmp [call site] 00257
8 fprintf [call site] 00258
8 fprintf [call site] 00259
7 fprintf [call site] 00260
7 strncmp [call site] 00261
7 fprintf [call site] 00262
7 fprintf [call site] 00263
7 fprintf [call site] 00264
7 fprintf [call site] 00265
7 fprintf [call site] 00266
7 process_comment [function] [call site] 00267
8 fprintf [call site] 00268
8 fprintf [call site] 00269
8 next_text [function] [call site] 00270
8 fprintf [call site] 00271
8 mpg123_init_string [function] [call site] 00272
8 store_id3_text [function] [call site] 00273
9 mpg123_grow_string [function] [call site] 00274
10 mpg123_resize_string [function] [call site] 00275
11 mpg123_init_string [function] [call site] 00276
11 INT123_safe_realloc [function] [call site] 00277
9 fprintf [call site] 00278
9 INT123_id3_to_utf8 [function] [call site] 00279
10 fprintf [call site] 00280
9 fprintf [call site] 00281
8 store_id3_text [function] [call site] 00282
8 fprintf [call site] 00284
8 add_id3_text [function] [call site] 00285
9 memcmp [call site] 00286
9 memcmp [call site] 00287
9 mpg123_same_string [function] [call site] 00288
10 memcmp [call site] 00289
9 memcmp [call site] 00290
9 INT123_safe_realloc [function] [call site] 00291
9 init_mpg123_text [function] [call site] 00292
10 mpg123_init_string [function] [call site] 00293
10 mpg123_init_string [function] [call site] 00294
8 add_id3_text [function] [call site] 00295
8 fprintf [call site] 00296
8 mpg123_free_string [function] [call site] 00297
8 free_mpg123_text [function] [call site] 00298
8 mpg123_move_string [function] [call site] 00299
9 mpg123_free_string [function] [call site] 00300
9 mpg123_free_string [function] [call site] 00301
9 mpg123_init_string [function] [call site] 00302
8 fprintf [call site] 00303
8 fprintf [call site] 00304
8 strcasecmp [call site] 00305
8 strcasecmp [call site] 00306
8 strcasecmp [call site] 00307
8 strcasecmp [call site] 00308
8 strcasecmp [call site] 00309
8 strcasecmp [call site] 00310
8 strcasecmp [call site] 00311
8 store_id3_text [function] [call site] 00312
8 atof [call site] 00313
8 fprintf [call site] 00314
8 free_mpg123_text [function] [call site] 00315
7 process_extra [function] [call site] 00316
8 fprintf [call site] 00317
8 fprintf [call site] 00318
8 next_text [function] [call site] 00319
8 fprintf [call site] 00321
8 fprintf [call site] 00322
8 mpg123_init_string [function] [call site] 00323
8 store_id3_text [function] [call site] 00324
8 add_id3_text [function] [call site] 00325
8 mpg123_move_string [function] [call site] 00326
8 mpg123_free_string [function] [call site] 00327
8 fprintf [call site] 00328
8 init_mpg123_text [function] [call site] 00329
8 store_id3_text [function] [call site] 00330
8 store_id3_text [function] [call site] 00331
8 strncasecmp [call site] 00332
8 fprintf [call site] 00333
8 strcasecmp [call site] 00334
8 strcasecmp [call site] 00335
8 strncasecmp [call site] 00336
8 fprintf [call site] 00337
8 strcasecmp [call site] 00338
8 strcasecmp [call site] 00339
8 store_id3_text [function] [call site] 00340
8 atof [call site] 00341
8 fprintf [call site] 00342
8 atof [call site] 00343
8 fprintf [call site] 00344
8 free_mpg123_text [function] [call site] 00345
7 fprintf [call site] 00346
7 strncasecmp [call site] 00347
7 strncasecmp [call site] 00348
7 strncasecmp [call site] 00349
7 strlen [call site] 00350
7 fprintf [call site] 00351
7 fprintf [call site] 00352
7 process_text [function] [call site] 00353
8 add_id3_text [function] [call site] 00354
8 fprintf [call site] 00356
8 store_id3_text [function] [call site] 00357
8 fprintf [call site] 00358
7 process_picture [function] [call site] 00359
8 mpg123_init_string [function] [call site] 00360
8 mpg123_init_string [function] [call site] 00361
8 fprintf [call site] 00362
8 fprintf [call site] 00363
8 next_text [function] [call site] 00364
8 fprintf [call site] 00365
8 INT123_id3_to_utf8 [function] [call site] 00366
8 next_text [function] [call site] 00367
8 fprintf [call site] 00368
8 mpg123_free_string [function] [call site] 00369
8 INT123_id3_to_utf8 [function] [call site] 00370
8 fprintf [call site] 00371
8 mpg123_free_string [function] [call site] 00372
8 mpg123_free_string [function] [call site] 00373
8 add_id3_picture [function] [call site] 00374
9 mpg123_same_string [function] [call site] 00375
9 INT123_safe_realloc [function] [call site] 00376
9 init_mpg123_picture [function] [call site] 00377
10 mpg123_init_string [function] [call site] 00378
10 mpg123_init_string [function] [call site] 00379
8 fprintf [call site] 00380
8 mpg123_free_string [function] [call site] 00381
8 mpg123_free_string [function] [call site] 00382
8 free_mpg123_picture [function] [call site] 00383
8 mpg123_move_string [function] [call site] 00384
8 mpg123_move_string [function] [call site] 00385
8 fprintf [call site] 00386
7 fprintf [call site] 00387
7 fprintf [call site] 00388
7 INT123_reset_id3 [function] [call site] 00389
7 fprintf [call site] 00390
7 INT123_reset_id3 [function] [call site] 00391
5 fprintf [call site] 00392
5 forget_head_shift [function] [call site] 00393
5 fprintf [call site] 00394
5 forget_head_shift [function] [call site] 00395
5 head_check [function] [call site] 00396
5 fprintf [call site] 00397
4 head_check [function] [call site] 00398
4 decode_header [function] [call site] 00399
5 fprintf [call site] 00400
5 fprintf [call site] 00401
5 guess_freeformat_framesize [function] [call site] 00402
5 fprintf [call site] 00403
5 fprintf [call site] 00404
5 INT123_do_layer1 [function] [call site] 00405
6 I_step_one [function] [call site] 00406
7 fprintf [call site] 00407
7 check_balloc [function] [call site] 00408
8 fprintf [call site] 00409
7 fprintf [call site] 00410
7 fprintf [call site] 00411
7 check_balloc [function] [call site] 00412
7 fprintf [call site] 00413
6 fprintf [call site] 00414
6 I_step_two [function] [call site] 00415
7 fprintf [call site] 00416
7 fprintf [call site] 00420
5 fprintf [call site] 00422
4 wetwork [function] [call site] 00423
5 fprintf [call site] 00424
5 handle_id3v2 [function] [call site] 00425
5 handle_apetag [function] [call site] 00426
6 strncmp [call site] 00427
5 fprintf [call site] 00428
5 fprintf [call site] 00429
5 fprintf [call site] 00430
5 forget_head_shift [function] [call site] 00431
5 fprintf [call site] 00432
5 head_check [function] [call site] 00433
5 fprintf [call site] 00434
5 fprintf [call site] 00435
5 fprintf [call site] 00436
4 do_readahead [function] [call site] 00437
5 fprintf [call site] 00438
5 fprintf [call site] 00439
5 fprintf [call site] 00440
5 head_check [function] [call site] 00441
5 fprintf [call site] 00442
4 head_compatible [function] [call site] 00443
5 header_mono [function] [call site] 00444
4 check_lame_tag [function] [call site] 00445
5 fprintf [call site] 00446
5 bit_read_long [function] [call site] 00447
5 bit_read_long [function] [call site] 00448
5 fprintf [call site] 00449
5 INT123_frame_gapless_init [function] [call site] 00450
5 fprintf [call site] 00451
5 bit_read_long [function] [call site] 00452
5 fprintf [call site] 00453
5 fprintf [call site] 00454
5 fprintf [call site] 00455
5 fprintf [call site] 00456
5 INT123_frame_fill_toc [function] [call site] 00457
5 bit_read_long [function] [call site] 00458
5 fprintf [call site] 00459
5 fprintf [call site] 00460
5 strncmp [call site] 00461
5 __isoc99_sscanf [call site] 00462
5 fprintf [call site] 00463
5 fprintf [call site] 00464
5 fprintf [call site] 00465
5 fprintf [call site] 00466
5 bit_read_short [function] [call site] 00467
5 fprintf [call site] 00468
5 fprintf [call site] 00469
5 fprintf [call site] 00470
5 fprintf [call site] 00471
5 INT123_frame_gapless_init [function] [call site] 00472
4 INT123_do_rva [function] [call site] 00473
4 INT123_set_pointer [function] [call site] 00474
4 INT123_compute_bpf [function] [call site] 00475
4 fprintf [call site] 00476
4 halfspeed_prepare [function] [call site] 00477
4 INT123_fi_add [function] [call site] 00478
5 INT123_fi_resize [function] [call site] 00479
5 fi_shrink [function] [call site] 00480
4 head_compatible [function] [call site] 00483
4 fprintf [call site] 00484
4 head_compatible [function] [call site] 00485
4 fprintf [call site] 00486
3 INT123_decode_update [function] [call site] 00487
3 INT123_frame_skip [function] [call site] 00488
4 INT123_set_pointer [function] [call site] 00489
3 INT123_frame_gapless_realinit [function] [call site] 00490
4 INT123_frame_ins2outs [function] [call site] 00491
5 INT123_ntom_ins2outs [function] [call site] 00492
6 INT123_ntom_val [function] [call site] 00493
5 fprintf [call site] 00494
4 INT123_frame_ins2outs [function] [call site] 00495
4 INT123_frame_ins2outs [function] [call site] 00496
3 INT123_frame_set_frameseek [function] [call site] 00497
4 INT123_frame_offset [function] [call site] 00498
5 INT123_ntom_frameoff [function] [call site] 00499
6 INT123_ntom_val [function] [call site] 00500
5 fprintf [call site] 00501
4 INT123_frame_outs [function] [call site] 00502
5 INT123_ntom_frmouts [function] [call site] 00503
6 INT123_ntom_val [function] [call site] 00504
5 fprintf [call site] 00505
4 INT123_frame_offset [function] [call site] 00506
4 INT123_frame_outs [function] [call site] 00507
4 ignoreframe [function] [call site] 00508
3 get_next_frame [function] [call site] 00509
1 mpg123_decode [function] [call site] 00510
1 mpg123_delete [function] [call site] 00511