Fuzz introspector: read_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
108 1511 4 :

['get_next_frame', 'decode_the_frame', 'INT123_decode_update', 'frame_buffercheck']

108 1511 mpg123_decode call site: 00114 /src/mpg123/src/libmpg123/libmpg123.c:1121
24 24 1 :

['INT123_make_conv16to8_table']

24 46 INT123_set_synth_functions call site: 00180 /src/mpg123/src/libmpg123/optimize.c:423
6 26 2 :

['INT123_fi_resize', 'fi_shrink']

6 28 INT123_fi_add call site: 00483 /src/mpg123/src/libmpg123/index.c:84
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 :

['fcntl']

6 22 default_init call site: 00000 /src/mpg123/src/libmpg123/readers.c:1022
4 4 1 :

['find_synth']

4 13 find_dectype call site: 00170 /src/mpg123/src/libmpg123/optimize.c:235
4 4 2 :

['close', 'abort']

4 4 fuzzer_get_tmpfile call site: 00013 /src/read_fuzzer.c:29
2 2 1 :

['strcasecmp']

2 2 INT123_dectype call site: 00077 /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: 00137 /src/mpg123/src/libmpg123/format.c:290
0 105 3 :

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

0 105 enc_chan_fit call site: 00126 /src/mpg123/src/libmpg123/format.c:194
0 54 2 :

['INT123_frame_exit', 'free']

0 54 mpg123_parnew call site: 00076 /src/mpg123/src/libmpg123/libmpg123.c:107
0 28 1 :

['INT123_frame_index_setup']

0 30 mpg123_param call site: 00092 /src/mpg123/src/libmpg123/libmpg123.c:170

Fuzzer calltree

0 LLVMFuzzerTestOneInput [function] [call site] 00000
1 mpg123_init [function] [call site] 00001
1 fuzzer_get_tmpfile [function] [call site] 00002
2 strdup [call site] 00003
2 perror [call site] 00004
2 abort [call site] 00005
2 mkstemp [call site] 00006
2 perror [call site] 00007
2 abort [call site] 00008
2 fdopen [call site] 00009
2 perror [call site] 00010
2 close [call site] 00011
2 abort [call site] 00012
2 fwrite [call site] 00013
2 close [call site] 00014
2 fprintf [call site] 00015
2 abort [call site] 00016
2 fclose [call site] 00017
1 fuzzer_release_tmpfile [function] [call site] 00018
2 unlink [call site] 00019
2 perror [call site] 00020
1 mpg123_new [function] [call site] 00021
2 mpg123_parnew [function] [call site] 00022
3 INT123_frame_init_par [function] [call site] 00024
4 wrap_getcpuflags [function] [call site] 00025
5 INT123_getcpuflags [call site] 00026
4 INT123_defdec [function] [call site] 00027
4 INT123_decclass [function] [call site] 00028
4 mpg123_reset_eq [function] [call site] 00029
4 INT123_init_icy [function] [call site] 00030
4 INT123_init_id3 [function] [call site] 00031
5 null_id3_links [function] [call site] 00032
4 INT123_invalidate_format [function] [call site] 00033
4 frame_default_pars [function] [call site] 00034
5 mpg123_fmt_all [function] [call site] 00035
6 fprintf [call site] 00036
4 INT123_bc_prepare [function] [call site] 00038
5 INT123_bc_poolsize [function] [call site] 00039
4 frame_fixed_reset [function] [call site] 00041
5 frame_icy_reset [function] [call site] 00042
5 INT123_open_bad [function] [call site] 00043
6 INT123_clear_icy [function] [call site] 00044
7 INT123_init_icy [function] [call site] 00045
5 INT123_frame_gapless_init [function] [call site] 00047
5 INT123_reset_id3 [function] [call site] 00048
6 INT123_exit_id3 [function] [call site] 00049
7 free_id3_picture [function] [call site] 00050
8 free_mpg123_picture [function] [call site] 00051
9 mpg123_free_string [function] [call site] 00052
10 mpg123_init_string [function] [call site] 00053
9 mpg123_free_string [function] [call site] 00054
7 free_id3_text [function] [call site] 00055
8 free_mpg123_text [function] [call site] 00056
9 mpg123_free_string [function] [call site] 00057
9 mpg123_free_string [function] [call site] 00058
7 free_id3_text [function] [call site] 00059
7 free_id3_text [function] [call site] 00060
6 INT123_init_id3 [function] [call site] 00061
5 INT123_reset_icy [function] [call site] 00062
6 INT123_clear_icy [function] [call site] 00063
6 INT123_init_icy [function] [call site] 00064
4 INT123_fi_init [function] [call site] 00065
4 INT123_frame_index_setup [function] [call site] 00067
5 INT123_fi_resize [function] [call site] 00068
6 INT123_safe_realloc [function] [call site] 00071
7 realloc [call site] 00072
5 INT123_fi_resize [function] [call site] 00074
5 fprintf [call site] 00075
3 INT123_frame_cpu_opt [function] [call site] 00076
4 INT123_dectype [function] [call site] 00077
5 strcasecmp [call site] 00078
4 INT123_dct36 [function] [call site] 00079
4 INT123_dct36_avx [call site] 00080
4 INT123_dct36_x86_64 [call site] 00081
4 INT123_decclass [function] [call site] 00082
4 INT123_frame_dither_init [function] [call site] 00083
5 INT123_dither_table_init [function] [call site] 00084
6 highpass_tpdf_noise [function] [call site] 00085
7 rand_xorshift32 [function] [call site] 00086
4 fprintf [call site] 00087
4 fprintf [call site] 00088
4 fprintf [call site] 00089
1 mpg123_param2 [function] [call site] 00090
2 mpg123_param [function] [call site] 00091
3 mpg123_par [function] [call site] 00092
3 INT123_frame_index_setup [function] [call site] 00093
3 INT123_bc_poolsize [function] [call site] 00094
1 fuzzer_release_tmpfile [function] [call site] 00095
1 mpg123_open [function] [call site] 00096
2 mpg123_close [function] [call site] 00097
3 INT123_invalidate_format [function] [call site] 00098
3 INT123_frame_reset [function] [call site] 00099
4 INT123_frame_buffers_reset [function] [call site] 00100
5 frame_decode_buffers_reset [function] [call site] 00101
4 frame_fixed_reset [function] [call site] 00102
4 frame_free_toc [function] [call site] 00103
4 INT123_fi_reset [function] [call site] 00104
2 INT123_open_stream [function] [call site] 00106
3 INT123_clear_icy [function] [call site] 00107
3 INT123_compat_open [function] [call site] 00108
4 open [call site] 00109
3 __errno_location [call site] 00110
3 open_finish [function] [call site] 00111
1 mpg123_read [function] [call site] 00112
2 mpg123_decode [function] [call site] 00113
3 mpg123_feed [function] [call site] 00114
4 INT123_feed_more [function] [call site] 00115
5 fprintf [call site] 00120
3 INT123_decode_update [function] [call site] 00121
4 fprintf [call site] 00122
4 INT123_frame_freq [function] [call site] 00123
4 INT123_frame_output_format [function] [call site] 00124
5 enc_chan_fit [function] [call site] 00134
5 fprintf [call site] 00135
5 INT123_frame_freq [function] [call site] 00136
5 enc_chan_fit [function] [call site] 00137
5 INT123_frame_freq [function] [call site] 00138
5 enc_chan_fit [function] [call site] 00139
5 INT123_frame_freq [function] [call site] 00140
5 enc_chan_fit [function] [call site] 00141
5 INT123_frame_freq [function] [call site] 00142
5 enc_chan_fit [function] [call site] 00143
5 INT123_frame_freq [function] [call site] 00144
5 enc_chan_fit [function] [call site] 00145
5 INT123_frame_freq [function] [call site] 00146
5 enc_chan_fit [function] [call site] 00147
5 INT123_frame_freq [function] [call site] 00148
5 enc_chan_fit [function] [call site] 00150
5 enc_chan_fit [function] [call site] 00151
5 enc_chan_fit [function] [call site] 00152
5 enc_chan_fit [function] [call site] 00153
5 INT123_frame_freq [function] [call site] 00154
5 fprintf [call site] 00155
5 mpg123_encsize [function] [call site] 00156
5 fprintf [call site] 00157
5 mpg123_encsize [function] [call site] 00158
4 INT123_outblock_bytes [function] [call site] 00159
4 INT123_synth_ntom_set_step [function] [call site] 00160
5 INT123_frame_freq [function] [call site] 00161
5 INT123_ntom_val [function] [call site] 00162
4 INT123_frame_freq [function] [call site] 00163
4 INT123_frame_freq [function] [call site] 00164
4 INT123_frame_freq [function] [call site] 00165
4 INT123_outblock_bytes [function] [call site] 00166
4 INT123_set_synth_functions [function] [call site] 00167
5 fprintf [call site] 00168
5 fprintf [call site] 00169
5 find_dectype [function] [call site] 00170
6 find_synth [function] [call site] 00171
6 INT123_decclass [function] [call site] 00172
6 fprintf [call site] 00173
5 INT123_frame_buffers [function] [call site] 00174
6 align_the_pointer [function] [call site] 00175
6 align_the_pointer [function] [call site] 00176
6 align_the_pointer [function] [call site] 00177
6 align_the_pointer [function] [call site] 00178
6 frame_decode_buffers_reset [function] [call site] 00179
5 fprintf [call site] 00180
5 INT123_make_conv16to8_table [function] [call site] 00181
6 fprintf [call site] 00182
6 fprintf [call site] 00183
6 fprintf [call site] 00184
5 fprintf [call site] 00185
5 INT123_init_layer3_stuff [function] [call site] 00186
5 INT123_init_layer12_stuff [function] [call site] 00187
5 INT123_init_layer3_stuff [function] [call site] 00188
5 INT123_init_layer12_stuff [function] [call site] 00189
4 INT123_frame_outbuffer [function] [call site] 00190
5 fprintf [call site] 00191
5 align_the_pointer [function] [call site] 00192
4 INT123_do_rva [function] [call site] 00193
5 fprintf [call site] 00195
5 fprintf [call site] 00196
3 decode_the_frame [function] [call site] 00197
4 INT123_frame_expect_outsamples [function] [call site] 00198
5 INT123_ntom_frame_outsamples [function] [call site] 00199
5 fprintf [call site] 00200
4 INT123_decoder_synth_bytes [function] [call site] 00201
4 fprintf [call site] 00202
4 zero_byte [function] [call site] 00203
4 INT123_ntom_set_ntom [function] [call site] 00204
5 INT123_ntom_val [function] [call site] 00205
4 INT123_postprocess_buffer [function] [call site] 00206
5 conv_s32_to_u32 [function] [call site] 00207
5 conv_s32_to_u32 [function] [call site] 00208
5 chop_fourth_byte [function] [call site] 00209
5 chop_fourth_byte [function] [call site] 00210
5 conv_s16_to_u16 [function] [call site] 00211
5 conv_s16_to_f32 [function] [call site] 00212
6 fprintf [call site] 00213
5 conv_s16_to_s32 [function] [call site] 00214
6 fprintf [call site] 00215
5 conv_s16_to_s32 [function] [call site] 00216
5 conv_s32_to_u32 [function] [call site] 00217
5 conv_s16_to_s32 [function] [call site] 00218
5 conv_s32_to_u32 [function] [call site] 00219
5 chop_fourth_byte [function] [call site] 00220
5 conv_s16_to_s32 [function] [call site] 00221
5 chop_fourth_byte [function] [call site] 00222
5 mpg123_encsize [function] [call site] 00223
3 frame_buffercheck [function] [call site] 00224
4 INT123_samples_to_bytes [function] [call site] 00225
4 fprintf [call site] 00226
4 INT123_samples_to_bytes [function] [call site] 00227
4 fprintf [call site] 00228
3 get_next_frame [function] [call site] 00229
4 INT123_decode_update [function] [call site] 00230
4 INT123_ntom_set_ntom [function] [call site] 00231
4 INT123_read_frame [function] [call site] 00232
5 halfspeed_do [function] [call site] 00233
6 INT123_set_pointer [function] [call site] 00234
6 getbits [function] [call site] 00235
7 fprintf [call site] 00236
5 head_check [function] [call site] 00237
5 skip_junk [function] [call site] 00238
6 handle_id3v2 [function] [call site] 00239
7 INT123_parse_new_id3 [function] [call site] 00240
8 fprintf [call site] 00241
8 fprintf [call site] 00242
8 fprintf [call site] 00243
8 fprintf [call site] 00244
8 fprintf [call site] 00245
8 fprintf [call site] 00246
8 store_id3v2 [function] [call site] 00247
9 fprintf [call site] 00248
8 fprintf [call site] 00249
8 INT123_reset_id3 [function] [call site] 00250
8 fprintf [call site] 00251
8 fprintf [call site] 00252
8 fprintf [call site] 00253
8 fprintf [call site] 00254
8 fprintf [call site] 00255
8 INT123_reset_id3 [function] [call site] 00256
8 strncpy [call site] 00257
8 fprintf [call site] 00258
8 fprintf [call site] 00259
8 fprintf [call site] 00260
8 promote_framename [function] [call site] 00261
9 strncmp [call site] 00262
9 fprintf [call site] 00263
9 fprintf [call site] 00264
8 fprintf [call site] 00265
8 strncmp [call site] 00266
8 fprintf [call site] 00267
8 fprintf [call site] 00268
8 fprintf [call site] 00269
8 fprintf [call site] 00270
8 fprintf [call site] 00271
8 process_comment [function] [call site] 00272
9 fprintf [call site] 00273
9 fprintf [call site] 00274
9 next_text [function] [call site] 00275
9 fprintf [call site] 00276
9 mpg123_init_string [function] [call site] 00277
9 store_id3_text [function] [call site] 00278
10 mpg123_grow_string [function] [call site] 00279
11 mpg123_resize_string [function] [call site] 00280
12 mpg123_init_string [function] [call site] 00281
12 INT123_safe_realloc [function] [call site] 00282
10 fprintf [call site] 00283
10 INT123_id3_to_utf8 [function] [call site] 00284
11 fprintf [call site] 00285
10 fprintf [call site] 00286
9 store_id3_text [function] [call site] 00287
9 fprintf [call site] 00289
9 add_id3_text [function] [call site] 00290
10 memcmp [call site] 00291
10 memcmp [call site] 00292
10 mpg123_same_string [function] [call site] 00293
11 memcmp [call site] 00294
10 memcmp [call site] 00295
10 INT123_safe_realloc [function] [call site] 00296
10 init_mpg123_text [function] [call site] 00297
11 mpg123_init_string [function] [call site] 00298
11 mpg123_init_string [function] [call site] 00299
9 add_id3_text [function] [call site] 00300
9 fprintf [call site] 00301
9 mpg123_free_string [function] [call site] 00302
9 free_mpg123_text [function] [call site] 00303
9 mpg123_move_string [function] [call site] 00304
10 mpg123_free_string [function] [call site] 00305
10 mpg123_free_string [function] [call site] 00306
10 mpg123_init_string [function] [call site] 00307
9 store_id3_text [function] [call site] 00308
9 fprintf [call site] 00309
9 fprintf [call site] 00310
9 strcasecmp [call site] 00311
9 strcasecmp [call site] 00312
9 strcasecmp [call site] 00313
9 strcasecmp [call site] 00314
9 strcasecmp [call site] 00315
9 strcasecmp [call site] 00316
9 strcasecmp [call site] 00317
9 store_id3_text [function] [call site] 00318
9 atof [call site] 00319
9 fprintf [call site] 00320
9 free_mpg123_text [function] [call site] 00321
8 process_extra [function] [call site] 00322
9 fprintf [call site] 00323
9 fprintf [call site] 00324
9 next_text [function] [call site] 00325
9 fprintf [call site] 00327
9 fprintf [call site] 00328
9 mpg123_init_string [function] [call site] 00329
9 store_id3_text [function] [call site] 00330
9 add_id3_text [function] [call site] 00331
9 mpg123_move_string [function] [call site] 00332
9 mpg123_free_string [function] [call site] 00333
9 fprintf [call site] 00334
9 init_mpg123_text [function] [call site] 00335
9 store_id3_text [function] [call site] 00336
9 store_id3_text [function] [call site] 00337
9 strncasecmp [call site] 00338
9 fprintf [call site] 00339
9 strcasecmp [call site] 00340
9 strcasecmp [call site] 00341
9 strncasecmp [call site] 00342
9 fprintf [call site] 00343
9 strcasecmp [call site] 00344
9 strcasecmp [call site] 00345
9 store_id3_text [function] [call site] 00346
9 atof [call site] 00347
9 fprintf [call site] 00348
9 atof [call site] 00349
9 fprintf [call site] 00350
9 free_mpg123_text [function] [call site] 00351
8 fprintf [call site] 00352
8 strncasecmp [call site] 00353
8 strncasecmp [call site] 00354
8 strncasecmp [call site] 00355
8 strlen [call site] 00356
8 fprintf [call site] 00357
8 fprintf [call site] 00358
8 process_text [function] [call site] 00359
9 add_id3_text [function] [call site] 00360
9 fprintf [call site] 00362
9 store_id3_text [function] [call site] 00363
9 fprintf [call site] 00364
8 process_picture [function] [call site] 00365
9 mpg123_init_string [function] [call site] 00366
9 mpg123_init_string [function] [call site] 00367
9 fprintf [call site] 00368
9 fprintf [call site] 00369
9 next_text [function] [call site] 00370
9 fprintf [call site] 00371
9 INT123_id3_to_utf8 [function] [call site] 00372
9 next_text [function] [call site] 00373
9 fprintf [call site] 00374
9 mpg123_free_string [function] [call site] 00375
9 INT123_id3_to_utf8 [function] [call site] 00376
9 fprintf [call site] 00377
9 mpg123_free_string [function] [call site] 00378
9 mpg123_free_string [function] [call site] 00379
9 add_id3_picture [function] [call site] 00380
10 mpg123_same_string [function] [call site] 00381
10 INT123_safe_realloc [function] [call site] 00382
10 init_mpg123_picture [function] [call site] 00383
11 mpg123_init_string [function] [call site] 00384
11 mpg123_init_string [function] [call site] 00385
9 fprintf [call site] 00386
9 mpg123_free_string [function] [call site] 00387
9 mpg123_free_string [function] [call site] 00388
9 free_mpg123_picture [function] [call site] 00389
9 mpg123_move_string [function] [call site] 00390
9 mpg123_move_string [function] [call site] 00391
9 fprintf [call site] 00392
8 fprintf [call site] 00393
8 fprintf [call site] 00394
8 INT123_reset_id3 [function] [call site] 00395
8 fprintf [call site] 00396
8 INT123_reset_id3 [function] [call site] 00397
6 fprintf [call site] 00398
6 forget_head_shift [function] [call site] 00399
6 fprintf [call site] 00400
6 forget_head_shift [function] [call site] 00401
6 head_check [function] [call site] 00402
6 fprintf [call site] 00403
5 head_check [function] [call site] 00404
5 decode_header [function] [call site] 00405
6 fprintf [call site] 00406
6 fprintf [call site] 00407
6 guess_freeformat_framesize [function] [call site] 00408
6 fprintf [call site] 00409
6 fprintf [call site] 00410
6 INT123_do_layer1 [function] [call site] 00411
7 I_step_one [function] [call site] 00412
8 fprintf [call site] 00413
8 check_balloc [function] [call site] 00414
8 fprintf [call site] 00415
8 fprintf [call site] 00416
8 check_balloc [function] [call site] 00417
8 fprintf [call site] 00418
7 fprintf [call site] 00419
7 I_step_two [function] [call site] 00420
8 fprintf [call site] 00421
8 fprintf [call site] 00425
6 fprintf [call site] 00427
5 wetwork [function] [call site] 00428
6 fprintf [call site] 00429
6 handle_id3v2 [function] [call site] 00430
6 handle_apetag [function] [call site] 00431
7 strncmp [call site] 00432
6 fprintf [call site] 00433
6 fprintf [call site] 00434
6 fprintf [call site] 00435
6 forget_head_shift [function] [call site] 00436
6 fprintf [call site] 00437
6 head_check [function] [call site] 00438
6 fprintf [call site] 00439
6 fprintf [call site] 00440
6 fprintf [call site] 00441
5 do_readahead [function] [call site] 00442
6 fprintf [call site] 00443
6 fprintf [call site] 00444
6 fprintf [call site] 00445
6 head_check [function] [call site] 00446
6 fprintf [call site] 00447
5 head_compatible [function] [call site] 00448
6 header_mono [function] [call site] 00449
5 check_lame_tag [function] [call site] 00450
6 fprintf [call site] 00451
6 bit_read_long [function] [call site] 00452
6 bit_read_long [function] [call site] 00453
6 fprintf [call site] 00454
6 INT123_frame_gapless_init [function] [call site] 00455
6 fprintf [call site] 00456
6 bit_read_long [function] [call site] 00457
6 fprintf [call site] 00458
6 fprintf [call site] 00459
6 fprintf [call site] 00460
6 fprintf [call site] 00461
6 INT123_frame_fill_toc [function] [call site] 00462
6 bit_read_long [function] [call site] 00463
6 fprintf [call site] 00464
6 fprintf [call site] 00465
6 strncmp [call site] 00466
6 __isoc99_sscanf [call site] 00467
6 fprintf [call site] 00468
6 fprintf [call site] 00469
6 fprintf [call site] 00470
6 fprintf [call site] 00471
6 bit_read_short [function] [call site] 00472
6 fprintf [call site] 00473
6 fprintf [call site] 00474
6 fprintf [call site] 00475
6 fprintf [call site] 00476
6 INT123_frame_gapless_init [function] [call site] 00477
5 INT123_do_rva [function] [call site] 00478
5 INT123_set_pointer [function] [call site] 00479
5 INT123_compute_bpf [function] [call site] 00480
5 fprintf [call site] 00481
5 halfspeed_prepare [function] [call site] 00482
5 INT123_fi_add [function] [call site] 00483
6 INT123_fi_resize [function] [call site] 00484
6 fi_shrink [function] [call site] 00485
5 head_compatible [function] [call site] 00488
5 fprintf [call site] 00489
5 head_compatible [function] [call site] 00490
5 fprintf [call site] 00491
4 INT123_decode_update [function] [call site] 00492
4 INT123_frame_skip [function] [call site] 00493
5 INT123_set_pointer [function] [call site] 00494
4 INT123_frame_gapless_realinit [function] [call site] 00495
5 INT123_frame_ins2outs [function] [call site] 00496
6 INT123_ntom_ins2outs [function] [call site] 00497
7 INT123_ntom_val [function] [call site] 00498
6 fprintf [call site] 00499
5 INT123_frame_ins2outs [function] [call site] 00500
5 INT123_frame_ins2outs [function] [call site] 00501
4 INT123_frame_set_frameseek [function] [call site] 00502
5 INT123_frame_offset [function] [call site] 00503
6 INT123_ntom_frameoff [function] [call site] 00504
7 INT123_ntom_val [function] [call site] 00505
6 fprintf [call site] 00506
5 INT123_frame_outs [function] [call site] 00507
6 INT123_ntom_frmouts [function] [call site] 00508
7 INT123_ntom_val [function] [call site] 00509
6 fprintf [call site] 00510
5 INT123_frame_offset [function] [call site] 00511
5 INT123_frame_outs [function] [call site] 00512
5 ignoreframe [function] [call site] 00513
4 get_next_frame [function] [call site] 00514
1 mpg123_tellframe [function] [call site] 00515
1 mpg123_tell_stream [function] [call site] 00516
1 mpg123_close [function] [call site] 00517
1 mpg123_delete [function] [call site] 00518
2 mpg123_close [function] [call site] 00519
2 INT123_frame_exit [function] [call site] 00520
3 frame_free_buffers [function] [call site] 00521
3 frame_free_toc [function] [call site] 00522
3 INT123_fi_exit [function] [call site] 00523
4 INT123_fi_init [function] [call site] 00524
3 INT123_clear_icy [function] [call site] 00525
3 INT123_bc_cleanup [function] [call site] 00526
4 buffy_del_chain [function] [call site] 00527
5 buffy_del [function] [call site] 00528
1 fuzzer_release_tmpfile [function] [call site] 00529