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
538 670 2 :

['ov_clear', '_open_seekable2']

538 670 _ov_open2 call site: 00174 /src/vorbis/lib/vorbisfile.c:942
166 166 3 :

['vorbis_book_init_encode', 'drft_init', '_vp_psy_init']

176 176 _vds_shared_init call site: 00258 /src/vorbis/lib/block.c:210
11 11 1 :

['_vp_psy_clear']

14 26 vorbis_dsp_clear call site: 00161 /src/vorbis/lib/block.c:354
8 8 1 :

['_ve_envelope_clear']

22 44 vorbis_dsp_clear call site: 00157 /src/vorbis/lib/block.c:324
4 22 2 :

['realloc', 'ogg_stream_clear']

4 22 _os_lacing_expand call site: 00051 /src/ogg/src/framing.c:206
0 23 2 :

['ogg_sync_buffer', 'ogg_sync_wrote']

10 528 _ov_open1 call site: 00004 /src/vorbis/lib/vorbisfile.c:898
0 0 None 0 1035 _fetch_and_process_packet call site: 00335 /src/vorbis/lib/vorbisfile.c:797
0 0 None 0 1035 _fetch_and_process_packet call site: 00338 /src/vorbis/lib/vorbisfile.c:833
0 0 None 0 312 _make_decode_ready call site: 00247 /src/vorbis/lib/vorbisfile.c:604
0 0 None 0 61 _vds_shared_init call site: 00283 /src/vorbis/lib/block.c:238
0 0 None 0 60 vorbis_synthesis call site: 00316 /src/vorbis/lib/synthesis.c:33
0 0 None 0 39 _fetch_headers call site: 00142 /src/vorbis/lib/vorbisfile.c:340

Fuzzer calltree

0 LLVMFuzzerTestOneInput [function] [call site] 00000
1 read_func(void*, unsigned long, unsigned long, void*) [function] [call site] 00001
1 ov_open_callbacks [function] [call site] 00002
2 _ov_open1 [function] [call site] 00003
3 ogg_sync_init [function] [call site] 00004
3 ogg_sync_buffer [function] [call site] 00005
4 ogg_sync_check [function] [call site] 00006
4 ogg_sync_clear [function] [call site] 00007
4 realloc [call site] 00008
4 ogg_sync_clear [function] [call site] 00009
3 ogg_sync_wrote [function] [call site] 00010
4 ogg_sync_check [function] [call site] 00011
3 calloc [call site] 00012
3 calloc [call site] 00013
3 ogg_stream_init [function] [call site] 00014
4 ogg_stream_clear [function] [call site] 00015
3 _fetch_headers [function] [call site] 00016
4 _get_next_page [function] [call site] 00017
5 ogg_sync_pageseek [function] [call site] 00018
6 ogg_sync_check [function] [call site] 00019
6 memcmp [call site] 00020
6 ogg_page_checksum_set [function] [call site] 00021
7 _os_update_crc [function] [call site] 00022
7 _os_update_crc [function] [call site] 00023
6 memcmp [call site] 00024
6 memchr [call site] 00025
5 _get_data [function] [call site] 00026
6 __errno_location [call site] 00027
6 ogg_sync_buffer [function] [call site] 00028
6 ogg_sync_wrote [function] [call site] 00029
6 __errno_location [call site] 00030
4 vorbis_info_init [function] [call site] 00031
5 calloc [call site] 00032
4 vorbis_comment_init [function] [call site] 00033
4 ogg_page_bos [function] [call site] 00034
4 _lookup_page_serialno [function] [call site] 00035
5 ogg_page_serialno [function] [call site] 00036
5 _lookup_serialno [function] [call site] 00037
4 _add_serialno [function] [call site] 00038
5 ogg_page_serialno [function] [call site] 00039
5 realloc [call site] 00040
4 ogg_page_serialno [function] [call site] 00041
4 ogg_stream_pagein [function] [call site] 00042
5 ogg_page_version [function] [call site] 00043
5 ogg_page_continued [function] [call site] 00044
5 ogg_page_bos [function] [call site] 00045
5 ogg_page_eos [function] [call site] 00046
5 ogg_page_granulepos [function] [call site] 00047
5 ogg_page_serialno [function] [call site] 00048
5 ogg_page_pageno [function] [call site] 00049
5 ogg_stream_check [function] [call site] 00050
5 _os_lacing_expand [function] [call site] 00051
6 ogg_stream_clear [function] [call site] 00052
6 realloc [call site] 00053
6 ogg_stream_clear [function] [call site] 00054
6 realloc [call site] 00055
6 ogg_stream_clear [function] [call site] 00056
5 _os_body_expand [function] [call site] 00057
6 realloc [call site] 00058
6 ogg_stream_clear [function] [call site] 00059
4 ogg_stream_packetout [function] [call site] 00060
5 ogg_stream_check [function] [call site] 00061
5 _packetout [function] [call site] 00062
4 vorbis_synthesis_idheader [function] [call site] 00063
5 oggpack_readinit [function] [call site] 00064
5 oggpack_read [function] [call site] 00065
5 _v_readstring [function] [call site] 00066
6 oggpack_read [function] [call site] 00067
5 memcmp [call site] 00068
4 vorbis_synthesis_headerin [function] [call site] 00069
5 oggpack_readinit [function] [call site] 00070
5 oggpack_read [function] [call site] 00071
5 _v_readstring [function] [call site] 00072
5 memcmp [call site] 00073
5 _vorbis_unpack_info [function] [call site] 00074
6 oggpack_read [function] [call site] 00075
6 oggpack_read [function] [call site] 00076
6 oggpack_read [function] [call site] 00077
6 oggpack_read [function] [call site] 00078
6 oggpack_read [function] [call site] 00079
6 oggpack_read [function] [call site] 00080
6 oggpack_read [function] [call site] 00081
6 oggpack_read [function] [call site] 00082
6 oggpack_read [function] [call site] 00083
6 vorbis_info_clear [function] [call site] 00084
7 vorbis_staticbook_destroy [function] [call site] 00085
7 vorbis_book_clear [function] [call site] 00086
7 _vi_psy_free [function] [call site] 00087
5 _vorbis_unpack_comment [function] [call site] 00088
6 oggpack_read [function] [call site] 00089
6 calloc [call site] 00090
6 _v_readstring [function] [call site] 00091
6 oggpack_read [function] [call site] 00092
6 oggpack_bytes [function] [call site] 00093
6 calloc [call site] 00094
6 calloc [call site] 00095
6 oggpack_read [function] [call site] 00096
6 oggpack_bytes [function] [call site] 00097
6 calloc [call site] 00098
6 _v_readstring [function] [call site] 00099
6 oggpack_read [function] [call site] 00100
6 vorbis_comment_clear [function] [call site] 00101
5 _vorbis_unpack_books [function] [call site] 00102
6 oggpack_read [function] [call site] 00103
6 vorbis_staticbook_unpack [function] [call site] 00104
7 calloc [call site] 00105
7 oggpack_read [function] [call site] 00106
7 oggpack_read [function] [call site] 00107
7 oggpack_read [function] [call site] 00108
7 ov_ilog [function] [call site] 00109
7 oggpack_read [function] [call site] 00110
7 oggpack_read [function] [call site] 00111
7 oggpack_bytes [function] [call site] 00112
7 oggpack_read [function] [call site] 00113
7 oggpack_read [function] [call site] 00114
7 oggpack_read [function] [call site] 00115
7 oggpack_read [function] [call site] 00116
7 ov_ilog [function] [call site] 00117
7 oggpack_read [function] [call site] 00118
7 oggpack_read [function] [call site] 00119
7 oggpack_read [function] [call site] 00120
7 oggpack_read [function] [call site] 00121
7 oggpack_read [function] [call site] 00122
7 _book_maptype1_quantvals [function] [call site] 00123
7 oggpack_read [function] [call site] 00124
7 vorbis_staticbook_destroy [function] [call site] 00125
6 oggpack_read [function] [call site] 00126
6 oggpack_read [function] [call site] 00127
6 oggpack_read [function] [call site] 00128
6 oggpack_read [function] [call site] 00129
6 oggpack_read [function] [call site] 00130
6 oggpack_read [function] [call site] 00131
6 oggpack_read [function] [call site] 00132
6 oggpack_read [function] [call site] 00133
6 oggpack_read [function] [call site] 00134
6 calloc [call site] 00135
6 oggpack_read [function] [call site] 00136
6 oggpack_read [function] [call site] 00137
6 oggpack_read [function] [call site] 00138
6 oggpack_read [function] [call site] 00139
6 oggpack_read [function] [call site] 00140
6 vorbis_info_clear [function] [call site] 00141
4 _get_next_page [function] [call site] 00142
4 ogg_page_serialno [function] [call site] 00143
4 ogg_stream_pagein [function] [call site] 00144
4 ogg_stream_packetout [function] [call site] 00145
4 vorbis_synthesis_headerin [function] [call site] 00146
4 _get_next_page [function] [call site] 00147
4 ogg_page_serialno [function] [call site] 00148
4 ogg_stream_pagein [function] [call site] 00149
4 ogg_page_bos [function] [call site] 00150
4 vorbis_info_clear [function] [call site] 00151
4 vorbis_comment_clear [function] [call site] 00152
3 ov_clear [function] [call site] 00153
4 vorbis_block_clear [function] [call site] 00154
5 _vorbis_block_ripcord [function] [call site] 00155
6 realloc [call site] 00156
4 vorbis_dsp_clear [function] [call site] 00157
5 _ve_envelope_clear [function] [call site] 00158
6 mdct_clear [function] [call site] 00159
5 mdct_clear [function] [call site] 00160
5 mdct_clear [function] [call site] 00161
5 _vp_psy_clear [function] [call site] 00162
5 _vp_global_free [function] [call site] 00163
5 vorbis_bitrate_clear [function] [call site] 00164
5 drft_clear [function] [call site] 00165
5 drft_clear [function] [call site] 00166
4 ogg_stream_clear [function] [call site] 00167
4 vorbis_info_clear [function] [call site] 00168
4 vorbis_comment_clear [function] [call site] 00169
4 ogg_sync_clear [function] [call site] 00170
3 calloc [call site] 00171
3 calloc [call site] 00172
3 calloc [call site] 00173
2 _ov_open2 [function] [call site] 00174
3 _open_seekable2 [function] [call site] 00175
4 _initial_pcmoffset [function] [call site] 00176
5 _get_next_page [function] [call site] 00177
5 ogg_page_bos [function] [call site] 00178
5 ogg_page_serialno [function] [call site] 00179
5 ogg_stream_pagein [function] [call site] 00180
5 ogg_stream_packetout [function] [call site] 00181
5 vorbis_packet_blocksize [function] [call site] 00182
6 oggpack_readinit [function] [call site] 00183
6 oggpack_read [function] [call site] 00184
6 oggpack_read [function] [call site] 00185
5 ogg_page_granulepos [function] [call site] 00186
5 ogg_page_granulepos [function] [call site] 00187
4 _get_prev_page_serial [function] [call site] 00188
5 _seek_helper [function] [call site] 00189
6 ogg_sync_reset [function] [call site] 00190
7 ogg_sync_check [function] [call site] 00191
5 _get_next_page [function] [call site] 00192
5 ogg_page_serialno [function] [call site] 00193
5 ogg_page_granulepos [function] [call site] 00194
5 _lookup_serialno [function] [call site] 00195
4 _bisect_forward_serialno [function] [call site] 00196
5 _lookup_serialno [function] [call site] 00197
5 _get_prev_page_serial [function] [call site] 00198
5 realloc [call site] 00199
5 realloc [call site] 00200
5 _seek_helper [function] [call site] 00201
5 _get_next_page [function] [call site] 00202
5 _lookup_page_serialno [function] [call site] 00203
5 _get_prev_page_serial [function] [call site] 00204
5 _seek_helper [function] [call site] 00205
5 _fetch_headers [function] [call site] 00206
5 _initial_pcmoffset [function] [call site] 00207
5 _bisect_forward_serialno [function] [call site] 00208
4 ov_raw_seek [function] [call site] 00209
5 _decode_clear [function] [call site] 00210
6 vorbis_dsp_clear [function] [call site] 00211
6 vorbis_block_clear [function] [call site] 00212
5 ogg_stream_reset_serialno [function] [call site] 00213
6 ogg_stream_check [function] [call site] 00214
6 ogg_stream_reset [function] [call site] 00215
7 ogg_stream_check [function] [call site] 00216
5 vorbis_synthesis_restart [function] [call site] 00217
5 _seek_helper [function] [call site] 00218
5 _decode_clear [function] [call site] 00219
5 ogg_stream_init [function] [call site] 00220
5 ogg_stream_reset [function] [call site] 00221
5 ogg_stream_packetout [function] [call site] 00222
5 vorbis_packet_blocksize [function] [call site] 00223
5 ogg_stream_packetout [function] [call site] 00224
5 ogg_stream_packetout [function] [call site] 00225
5 ogg_stream_packetout [function] [call site] 00226
5 _get_next_page [function] [call site] 00227
5 ov_pcm_total [function] [call site] 00228
6 ov_pcm_total [function] [call site] 00229
5 ogg_page_serialno [function] [call site] 00230
5 ogg_page_bos [function] [call site] 00231
5 _decode_clear [function] [call site] 00232
5 ogg_stream_clear [function] [call site] 00233
5 ogg_page_serialno [function] [call site] 00234
5 ogg_stream_reset_serialno [function] [call site] 00235
5 ogg_stream_reset_serialno [function] [call site] 00236
5 ogg_stream_pagein [function] [call site] 00237
5 ogg_stream_pagein [function] [call site] 00238
5 ogg_page_eos [function] [call site] 00239
5 ogg_stream_clear [function] [call site] 00240
3 ov_clear [function] [call site] 00241
1 ov_read [function] [call site] 00242
2 ov_read_filter [function] [call site] 00243
3 host_is_big_endian [function] [call site] 00244
3 vorbis_synthesis_pcmout [function] [call site] 00245
3 _fetch_and_process_packet [function] [call site] 00246
4 _make_decode_ready [function] [call site] 00247
5 vorbis_synthesis_init [function] [call site] 00248
6 _vds_shared_init [function] [call site] 00249
7 calloc [call site] 00250
7 calloc [call site] 00251
7 calloc [call site] 00252
7 calloc [call site] 00253
7 calloc [call site] 00254
7 mdct_init [function] [call site] 00255
7 mdct_init [function] [call site] 00256
7 ov_ilog [function] [call site] 00257
7 ov_ilog [function] [call site] 00258
7 drft_init [function] [call site] 00259
8 calloc [call site] 00260
8 calloc [call site] 00261
8 fdrffti [function] [call site] 00262
9 drfti1 [function] [call site] 00263
7 drft_init [function] [call site] 00264
7 calloc [call site] 00265
7 vorbis_book_init_encode [function] [call site] 00266
8 _make_words [function] [call site] 00267
8 _book_maptype1_quantvals [function] [call site] 00268
8 _float32_unpack [function] [call site] 00269
8 _float32_unpack [function] [call site] 00270
7 calloc [call site] 00271
7 _vp_psy_init [function] [call site] 00272
8 atan [call site] 00273
8 atan [call site] 00274
8 atan [call site] 00275
8 setup_tone_curves [function] [call site] 00276
9 abs [call site] 00277
9 attenuate_curve [function] [call site] 00278
9 attenuate_curve [function] [call site] 00279
9 max_curve [function] [call site] 00280
9 min_curve [function] [call site] 00281
9 min_curve [function] [call site] 00282
7 calloc [call site] 00283
7 vorbis_book_init_decode [function] [call site] 00284
8 _make_words [function] [call site] 00285
8 bitreverse [function] [call site] 00286
8 qsort [call site] 00287
8 sort32a [function] [call site] 00288
8 _book_unquantize [function] [call site] 00289
9 _float32_unpack [function] [call site] 00290
9 _float32_unpack [function] [call site] 00291
9 calloc [call site] 00292
9 _book_maptype1_quantvals [function] [call site] 00293
8 calloc [call site] 00294
8 ov_ilog [function] [call site] 00295
8 calloc [call site] 00296
8 bitreverse [function] [call site] 00297
8 bitreverse [function] [call site] 00298
8 bitreverse [function] [call site] 00299
8 vorbis_book_clear [function] [call site] 00300
7 vorbis_staticbook_destroy [function] [call site] 00301
7 calloc [call site] 00302
7 calloc [call site] 00303
7 calloc [call site] 00304
7 vorbis_staticbook_destroy [function] [call site] 00305
7 vorbis_dsp_clear [function] [call site] 00306
6 vorbis_dsp_clear [function] [call site] 00307
6 vorbis_synthesis_restart [function] [call site] 00308
5 vorbis_synthesis_init [function] [call site] 00309
5 vorbis_block_init [function] [call site] 00310
6 calloc [call site] 00311
6 calloc [call site] 00312
6 oggpack_writeinit [function] [call site] 00313
4 vorbis_synthesis_halfrate_p [function] [call site] 00314
4 ogg_stream_packetout [function] [call site] 00315
4 vorbis_synthesis [function] [call site] 00316
5 _vorbis_block_ripcord [function] [call site] 00317
5 oggpack_readinit [function] [call site] 00318
5 oggpack_read [function] [call site] 00319
5 oggpack_read [function] [call site] 00320
5 oggpack_read [function] [call site] 00321
5 oggpack_read [function] [call site] 00322
5 _vorbis_block_alloc [function] [call site] 00323
5 _vorbis_block_alloc [function] [call site] 00324
4 vorbis_synthesis_pcmout [function] [call site] 00325
4 vorbis_synthesis_blockin [function] [call site] 00326
5 _vorbis_window_get [function] [call site] 00327
5 _vorbis_window_get [function] [call site] 00328
5 _vorbis_window_get [function] [call site] 00329
5 _vorbis_window_get [function] [call site] 00330
4 vorbis_synthesis_pcmout [function] [call site] 00331
4 vorbis_synthesis_pcmout [function] [call site] 00332
4 _get_next_page [function] [call site] 00333
4 ogg_page_serialno [function] [call site] 00334
4 ogg_page_bos [function] [call site] 00335
4 _decode_clear [function] [call site] 00336
4 vorbis_info_clear [function] [call site] 00337
4 vorbis_comment_clear [function] [call site] 00338
4 ogg_page_serialno [function] [call site] 00339
4 ogg_stream_reset_serialno [function] [call site] 00340
4 _fetch_headers [function] [call site] 00341
4 ogg_stream_pagein [function] [call site] 00342
3 ov_info [function] [call site] 00343
3 vorbis_fpu_setround [function] [call site] 00344
3 vorbis_ftoi [function] [call site] 00345
3 vorbis_fpu_restore [function] [call site] 00346
3 vorbis_fpu_setround [function] [call site] 00347
3 vorbis_ftoi [function] [call site] 00348
3 vorbis_fpu_restore [function] [call site] 00349
3 vorbis_fpu_setround [function] [call site] 00350
3 vorbis_ftoi [function] [call site] 00351
3 vorbis_fpu_restore [function] [call site] 00352
3 vorbis_fpu_setround [function] [call site] 00353
3 vorbis_ftoi [function] [call site] 00354
3 vorbis_fpu_restore [function] [call site] 00355
3 vorbis_fpu_setround [function] [call site] 00356
3 vorbis_ftoi [function] [call site] 00357
3 vorbis_fpu_restore [function] [call site] 00358
3 vorbis_synthesis_read [function] [call site] 00359
3 vorbis_synthesis_halfrate_p [function] [call site] 00360
1 ov_clear [function] [call site] 00361