Fuzz introspector: compress_yuv_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
458 458 1 :

['encode_one_block']

458 458 encode_mcu_huff call site: 00000 /src/libjpeg-turbo.3.0.x/jchuff.c:717
36 36 7 :

['jinit_c_diff_controller', 'jinit_lhuff_encoder', 'jinit_lossless_compressor', 'j16init_c_diff_controller', 'j16init_lossless_compressor', 'j12init_lossless_compressor', 'j12init_c_diff_controller']

48 56 jinit_compress_master call site: 00296 /src/libjpeg-turbo.3.0.x/jcinit.c:64
8 8 1 :

['j12init_c_coef_controller']

20 28 jinit_compress_master call site: 00328 /src/libjpeg-turbo.3.0.x/jcinit.c:120
8 8 1 :

['fill_scans']

8 20 jpeg_simple_progression call site: 00183 /src/libjpeg-turbo.3.0.x/jcparam.c:523
6 12 2 :

['jinit_c_main_controller', 'j12init_c_main_controller']

6 14 jinit_compress_master call site: 00332 /src/libjpeg-turbo.3.0.x/jcinit.c:128
2 2 1 :

['jsimd_h2v2_downsample_sse2']

2 2 jsimd_h2v2_downsample call site: 00000 /src/libjpeg-turbo.3.0.x/simd/x86_64/jsimd.c:348
2 2 1 :

['jsimd_h2v1_downsample_sse2']

2 2 jsimd_h2v1_downsample call site: 00000 /src/libjpeg-turbo.3.0.x/simd/x86_64/jsimd.c:367
2 2 1 :

['jsimd_convsamp_sse2']

2 2 jsimd_convsamp call site: 00000 /src/libjpeg-turbo.3.0.x/simd/x86_64/jsimd.c:718
2 2 1 :

['jsimd_fdct_islow_sse2']

2 2 jsimd_fdct_islow call site: 00000 /src/libjpeg-turbo.3.0.x/simd/x86_64/jsimd.c:790
2 2 1 :

['jsimd_quantize_sse2']

2 2 jsimd_quantize call site: 00000 /src/libjpeg-turbo.3.0.x/simd/x86_64/jsimd.c:854
2 2 1 :

['fill_scans']

2 2 fill_dc_scans call site: 00184 /src/libjpeg-turbo.3.0.x/jcparam.c:454
0 47 1 :

['init_simd']

4 51 jsimd_h2v2_downsample call site: 00000 /src/libjpeg-turbo.3.0.x/simd/x86_64/jsimd.c:345

Fuzzer calltree

0 LLVMFuzzerTestOneInput [function] [call site] 00000
1 snprintf [call site] 00001
1 mkstemp [call site] 00002
1 write [call site] 00003
1 tj3Init [function] [call site] 00004
2 snprintf [call site] 00005
2 snprintf [call site] 00006
2 snprintf [call site] 00007
2 _tjInitCompress [function] [call site] 00008
3 jpeg_std_error [function] [call site] 00009
3 _setjmp [call site] 00010
3 jpeg_CreateCompress [function] [call site] 00011
4 jinit_memory_mgr [function] [call site] 00012
5 jpeg_mem_init [function] [call site] 00013
5 jpeg_get_small [function] [call site] 00014
5 jpeg_mem_term [function] [call site] 00015
5 __errno_location [call site] 00016
5 getenv [call site] 00017
5 strlen [call site] 00018
5 strncpy [call site] 00019
5 __isoc99_sscanf [call site] 00020
3 jpeg_mem_dest_tj [function] [call site] 00021
2 _tjInitDecompress [function] [call site] 00022
3 jpeg_std_error [function] [call site] 00023
3 _setjmp [call site] 00024
3 jpeg_CreateDecompress [function] [call site] 00025
4 jinit_memory_mgr [function] [call site] 00026
4 jinit_marker_reader [function] [call site] 00027
5 reset_marker_reader [function] [call site] 00028
4 jinit_input_controller [function] [call site] 00029
3 jpeg_mem_src_tj [function] [call site] 00030
2 _tjInitCompress [function] [call site] 00031
2 _tjInitDecompress [function] [call site] 00032
1 tj3Set [function] [call site] 00033
2 snprintf [call site] 00034
2 snprintf [call site] 00035
2 snprintf [call site] 00036
2 snprintf [call site] 00037
2 snprintf [call site] 00038
2 snprintf [call site] 00039
2 snprintf [call site] 00040
2 snprintf [call site] 00041
2 snprintf [call site] 00042
2 snprintf [call site] 00043
2 snprintf [call site] 00044
2 snprintf [call site] 00045
2 snprintf [call site] 00046
2 snprintf [call site] 00047
2 snprintf [call site] 00048
2 snprintf [call site] 00049
2 snprintf [call site] 00050
2 snprintf [call site] 00051
2 snprintf [call site] 00052
2 snprintf [call site] 00053
2 snprintf [call site] 00054
2 snprintf [call site] 00055
2 snprintf [call site] 00056
2 snprintf [call site] 00057
2 snprintf [call site] 00058
2 snprintf [call site] 00059
2 snprintf [call site] 00060
2 snprintf [call site] 00061
2 snprintf [call site] 00062
2 snprintf [call site] 00063
2 snprintf [call site] 00064
2 snprintf [call site] 00065
2 snprintf [call site] 00066
2 snprintf [call site] 00067
2 snprintf [call site] 00068
2 snprintf [call site] 00069
2 snprintf [call site] 00070
2 snprintf [call site] 00071
2 snprintf [call site] 00072
2 snprintf [call site] 00073
2 snprintf [call site] 00074
2 snprintf [call site] 00075
2 snprintf [call site] 00076
2 snprintf [call site] 00077
2 snprintf [call site] 00078
2 snprintf [call site] 00079
2 snprintf [call site] 00080
1 tj3Set [function] [call site] 00081
1 tj3Set [function] [call site] 00082
1 tj3Set [function] [call site] 00083
1 tj3Set [function] [call site] 00084
1 tj3Set [function] [call site] 00085
1 tj3Set [function] [call site] 00086
1 tj3Set [function] [call site] 00087
1 tj3LoadImage8 [function] [call site] 00088
2 snprintf [call site] 00089
2 snprintf [call site] 00090
2 snprintf [call site] 00091
2 tj3Init [function] [call site] 00092
2 fopen [call site] 00093
2 __errno_location [call site] 00094
2 strerror [call site] 00095
2 snprintf [call site] 00096
2 getc [call site] 00097
2 ungetc [call site] 00098
2 __errno_location [call site] 00099
2 strerror [call site] 00100
2 snprintf [call site] 00101
2 snprintf [call site] 00102
2 _setjmp [call site] 00103
2 jinit_read_bmp [function] [call site] 00104
2 snprintf [call site] 00105
2 jinit_read_ppm [function] [call site] 00106
2 snprintf [call site] 00107
2 snprintf [call site] 00108
2 snprintf [call site] 00109
2 _setjmp [call site] 00110
2 tj3Destroy [function] [call site] 00111
3 _setjmp [call site] 00112
3 jpeg_destroy_compress [function] [call site] 00113
4 jpeg_destroy [function] [call site] 00114
3 jpeg_destroy_decompress [function] [call site] 00115
4 jpeg_destroy [function] [call site] 00116
2 fclose [call site] 00117
1 tj3JPEGBufSize [function] [call site] 00118
2 snprintf [call site] 00119
1 tj3Alloc [function] [call site] 00120
1 tj3YUVBufSize [function] [call site] 00121
2 snprintf [call site] 00122
2 tj3YUVPlaneWidth [function] [call site] 00123
3 snprintf [call site] 00124
3 snprintf [call site] 00125
3 snprintf [call site] 00126
2 tj3YUVPlaneHeight [function] [call site] 00127
3 snprintf [call site] 00128
3 snprintf [call site] 00129
3 snprintf [call site] 00130
1 tj3Set [function] [call site] 00131
1 tj3Set [function] [call site] 00132
1 tj3EncodeYUV8 [function] [call site] 00133
2 snprintf [call site] 00134
2 snprintf [call site] 00135
2 snprintf [call site] 00136
2 tj3YUVPlaneWidth [function] [call site] 00137
2 tj3YUVPlaneHeight [function] [call site] 00138
2 tj3YUVPlaneWidth [function] [call site] 00139
2 tj3YUVPlaneHeight [function] [call site] 00140
2 snprintf [call site] 00141
2 tj3EncodeYUVPlanes8 [function] [call site] 00142
3 snprintf [call site] 00143
3 snprintf [call site] 00144
3 snprintf [call site] 00145
3 snprintf [call site] 00146
3 snprintf [call site] 00147
3 snprintf [call site] 00148
3 _setjmp [call site] 00149
3 setCompDefaults [function] [call site] 00150
4 jpeg_set_defaults [function] [call site] 00151
5 jpeg_set_quality [function] [call site] 00152
6 jpeg_quality_scaling [function] [call site] 00153
6 jpeg_set_linear_quality [function] [call site] 00154
7 jpeg_add_quant_table [function] [call site] 00155
8 jpeg_alloc_quant_table [function] [call site] 00156
7 jpeg_add_quant_table [function] [call site] 00157
5 std_huff_tables [function] [call site] 00158
6 add_huff_table [function] [call site] 00159
7 jpeg_alloc_huff_table [function] [call site] 00160
6 add_huff_table [function] [call site] 00161
6 add_huff_table [function] [call site] 00162
6 add_huff_table [function] [call site] 00163
5 jpeg_default_colorspace [function] [call site] 00164
6 jpeg_set_colorspace [function] [call site] 00165
6 jpeg_set_colorspace [function] [call site] 00166
6 jpeg_set_colorspace [function] [call site] 00167
6 jpeg_set_colorspace [function] [call site] 00168
6 jpeg_set_colorspace [function] [call site] 00169
6 jpeg_set_colorspace [function] [call site] 00170
6 jpeg_set_colorspace [function] [call site] 00171
4 jpeg_enable_lossless [function] [call site] 00172
4 jpeg_set_quality [function] [call site] 00173
4 jpeg_set_colorspace [function] [call site] 00174
4 jpeg_set_colorspace [function] [call site] 00175
4 jpeg_set_colorspace [function] [call site] 00176
4 jpeg_set_colorspace [function] [call site] 00177
4 jpeg_set_colorspace [function] [call site] 00178
4 jpeg_set_colorspace [function] [call site] 00179
4 jpeg_set_colorspace [function] [call site] 00180
4 jpeg_set_colorspace [function] [call site] 00181
4 jpeg_simple_progression [function] [call site] 00182
5 jpeg_default_colorspace [function] [call site] 00183
5 fill_dc_scans [function] [call site] 00184
6 fill_scans [function] [call site] 00185
5 fill_a_scan [function] [call site] 00186
5 fill_a_scan [function] [call site] 00187
5 fill_a_scan [function] [call site] 00188
5 fill_a_scan [function] [call site] 00189
5 fill_a_scan [function] [call site] 00190
5 fill_dc_scans [function] [call site] 00191
5 fill_a_scan [function] [call site] 00192
5 fill_a_scan [function] [call site] 00193
5 fill_a_scan [function] [call site] 00194
5 fill_dc_scans [function] [call site] 00195
5 fill_scans [function] [call site] 00196
5 fill_scans [function] [call site] 00197
5 fill_scans [function] [call site] 00198
5 fill_dc_scans [function] [call site] 00199
5 fill_scans [function] [call site] 00200
3 snprintf [call site] 00201
3 jinit_c_master_control [function] [call site] 00202
4 validate_script [function] [call site] 00203
4 jpeg_default_colorspace [function] [call site] 00204
4 initial_setup [function] [call site] 00205
5 jdiv_round_up [function] [call site] 00206
5 jdiv_round_up [function] [call site] 00207
5 jdiv_round_up [function] [call site] 00208
5 jdiv_round_up [function] [call site] 00209
5 jdiv_round_up [function] [call site] 00210
4 using_std_huff_tables [function] [call site] 00211
5 memcmp [call site] 00212
5 memcmp [call site] 00213
5 memcmp [call site] 00214
5 memcmp [call site] 00215
5 memcmp [call site] 00216
5 memcmp [call site] 00217
5 memcmp [call site] 00218
5 memcmp [call site] 00219
3 jinit_color_converter [function] [call site] 00220
4 jsimd_can_rgb_gray [function] [call site] 00221
5 init_simd [function] [call site] 00222
6 jpeg_simd_cpu_support [call site] 00223
6 __errno_location [call site] 00224
6 getenv [call site] 00225
6 strlen [call site] 00226
6 strncpy [call site] 00227
6 strcmp [call site] 00228
6 __errno_location [call site] 00229
6 getenv [call site] 00230
6 strlen [call site] 00231
6 strncpy [call site] 00232
6 strcmp [call site] 00233
6 __errno_location [call site] 00234
6 getenv [call site] 00235
6 strlen [call site] 00236
6 strncpy [call site] 00237
6 strcmp [call site] 00238
6 __errno_location [call site] 00239
6 getenv [call site] 00240
6 strlen [call site] 00241
6 strncpy [call site] 00242
6 strcmp [call site] 00243
4 jsimd_can_rgb_ycc [function] [call site] 00244
5 init_simd [function] [call site] 00245
3 jinit_downsampler [function] [call site] 00246
4 jsimd_can_h2v1_downsample [function] [call site] 00247
5 init_simd [function] [call site] 00248
4 jsimd_can_h2v2_downsample [function] [call site] 00249
5 init_simd [function] [call site] 00250
3 snprintf [call site] 00251
3 snprintf [call site] 00252
3 snprintf [call site] 00253
3 snprintf [call site] 00254
3 snprintf [call site] 00255
3 snprintf [call site] 00256
3 _setjmp [call site] 00257
3 jcopy_sample_rows [function] [call site] 00258
3 jpeg_abort_compress [function] [call site] 00259
4 jpeg_abort [function] [call site] 00260
3 jpeg_abort_compress [function] [call site] 00261
1 tj3CompressFromYUV8 [function] [call site] 00262
2 snprintf [call site] 00263
2 snprintf [call site] 00264
2 snprintf [call site] 00265
2 tj3YUVPlaneWidth [function] [call site] 00266
2 tj3YUVPlaneHeight [function] [call site] 00267
2 tjPlaneWidth [function] [call site] 00268
3 tj3YUVPlaneWidth [function] [call site] 00269
2 tjPlaneHeight [function] [call site] 00270
3 tj3YUVPlaneHeight [function] [call site] 00271
2 snprintf [call site] 00272
2 tj3CompressFromYUVPlanes8 [function] [call site] 00273
3 snprintf [call site] 00274
3 snprintf [call site] 00275
3 snprintf [call site] 00276
3 snprintf [call site] 00277
3 snprintf [call site] 00278
3 snprintf [call site] 00279
3 _setjmp [call site] 00280
3 jpeg_mem_dest_tj [function] [call site] 00281
3 setCompDefaults [function] [call site] 00282
3 jpeg_start_compress [function] [call site] 00283
4 jpeg_suppress_tables [function] [call site] 00284
4 jinit_compress_master [function] [call site] 00285
5 jinit_c_master_control [function] [call site] 00286
5 jinit_color_converter [function] [call site] 00287
5 jinit_downsampler [function] [call site] 00288
5 jinit_c_prep_controller [function] [call site] 00289
6 create_context_buffer [function] [call site] 00290
5 j12init_color_converter [function] [call site] 00291
5 j12init_downsampler [function] [call site] 00292
5 j12init_c_prep_controller [function] [call site] 00293
5 j16init_color_converter [function] [call site] 00294
5 j16init_downsampler [function] [call site] 00295
5 j16init_c_prep_controller [function] [call site] 00296
5 jinit_lossless_compressor [function] [call site] 00297
5 j12init_lossless_compressor [function] [call site] 00298
5 j16init_lossless_compressor [function] [call site] 00299
5 jinit_lhuff_encoder [function] [call site] 00300
5 jinit_c_diff_controller [function] [call site] 00301
6 jround_up [function] [call site] 00302
6 jround_up [function] [call site] 00303
6 jround_up [function] [call site] 00304
6 jround_up [function] [call site] 00305
6 jround_up [function] [call site] 00306
6 jround_up [function] [call site] 00307
5 j12init_c_diff_controller [function] [call site] 00308
5 j16init_c_diff_controller [function] [call site] 00309
5 jinit_forward_dct [function] [call site] 00310
6 jsimd_can_fdct_islow [function] [call site] 00311
7 init_simd [function] [call site] 00312
6 jsimd_can_fdct_ifast [function] [call site] 00313
7 init_simd [function] [call site] 00314
6 jsimd_can_fdct_float [function] [call site] 00315
7 init_simd [function] [call site] 00316
6 jsimd_can_convsamp [function] [call site] 00317
7 init_simd [function] [call site] 00318
6 jsimd_can_quantize [function] [call site] 00319
7 init_simd [function] [call site] 00320
6 jsimd_can_convsamp_float [function] [call site] 00321
7 init_simd [function] [call site] 00322
6 jsimd_can_quantize_float [function] [call site] 00323
7 init_simd [function] [call site] 00324
5 j12init_forward_dct [function] [call site] 00325
5 jinit_arith_encoder [function] [call site] 00326
5 jinit_phuff_encoder [function] [call site] 00327
5 jinit_huff_encoder [function] [call site] 00328
5 j12init_c_coef_controller [function] [call site] 00329
6 jround_up [function] [call site] 00330
6 jround_up [function] [call site] 00331
5 jinit_c_coef_controller [function] [call site] 00332
5 jinit_c_main_controller [function] [call site] 00333
5 j12init_c_main_controller [function] [call site] 00334
5 j16init_c_main_controller [function] [call site] 00335
5 jinit_marker_writer [function] [call site] 00336
3 jpeg_write_icc_profile [function] [call site] 00337
4 jpeg_write_m_header [function] [call site] 00338
4 jpeg_write_m_byte [function] [call site] 00339
4 jpeg_write_m_byte [function] [call site] 00340
4 jpeg_write_m_byte [function] [call site] 00341
4 jpeg_write_m_byte [function] [call site] 00342
4 jpeg_write_m_byte [function] [call site] 00343
4 jpeg_write_m_byte [function] [call site] 00344
4 jpeg_write_m_byte [function] [call site] 00345
4 jpeg_write_m_byte [function] [call site] 00346
4 jpeg_write_m_byte [function] [call site] 00347
4 jpeg_write_m_byte [function] [call site] 00348
4 jpeg_write_m_byte [function] [call site] 00349
4 jpeg_write_m_byte [function] [call site] 00350
4 jpeg_write_m_byte [function] [call site] 00351
4 jpeg_write_m_byte [function] [call site] 00352
4 jpeg_write_m_byte [function] [call site] 00353
3 snprintf [call site] 00354
3 snprintf [call site] 00355
3 snprintf [call site] 00356
3 _setjmp [call site] 00357
3 jpeg_write_raw_data [function] [call site] 00358
3 jpeg_finish_compress [function] [call site] 00359
4 jpeg_abort [function] [call site] 00360
3 jpeg_abort_compress [function] [call site] 00361
1 tj3Free [function] [call site] 00362
1 tj3Free [function] [call site] 00363
1 close [call site] 00364
1 strlen [call site] 00365
1 unlink [call site] 00366
1 tj3Destroy [function] [call site] 00367