Fuzz introspector: libjpeg_turbo_fuzzer_3_0_x
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
21 74 tj3Set call site: 00074 snprintf
16 146 jpeg_core_output_dimensions call site: 00146 jdiv_round_up
13 52 tj3Set call site: 00052 snprintf
12 167 master_selection call site: 00167 j12init_1pass_quantizer
6 130 jpeg_calc_output_dimensions call site: 00130 jdiv_round_up
6 138 jpeg_core_output_dimensions call site: 00138 jdiv_round_up
5 4 tj3Init call site: 00004 _tjInitCompress
5 276 tj3Decompress8 call site: 00276 increment_simple_rowgroup_ctr
4 68 tj3Set call site: 00068 snprintf
3 269 jpeg_crop_scanline call site: 00269 jinit_upsampler
2 16 jinit_memory_mgr call site: 00016 jpeg_mem_dest_tj
2 27 _tjInitDecompress call site: 00027 _tjInitCompress

Fuzzer calltree

0 LLVMFuzzerTestOneInput [function] [call site] 00000
1 tj3Init [function] [call site] 00001
2 snprintf [call site] 00002
2 snprintf [call site] 00003
2 snprintf [call site] 00004
2 _tjInitCompress [function] [call site] 00005
3 jpeg_std_error [function] [call site] 00006
3 _setjmp [call site] 00007
3 jpeg_CreateCompress [function] [call site] 00008
4 jinit_memory_mgr [function] [call site] 00009
5 jpeg_mem_init [function] [call site] 00010
5 jpeg_get_small [function] [call site] 00011
5 jpeg_mem_term [function] [call site] 00012
5 __errno_location [call site] 00013
5 getenv [call site] 00014
5 strlen [call site] 00015
5 strncpy [call site] 00016
5 __isoc99_sscanf [call site] 00017
3 jpeg_mem_dest_tj [function] [call site] 00018
2 _tjInitDecompress [function] [call site] 00019
3 jpeg_std_error [function] [call site] 00020
3 _setjmp [call site] 00021
3 jpeg_CreateDecompress [function] [call site] 00022
4 jinit_memory_mgr [function] [call site] 00023
4 jinit_marker_reader [function] [call site] 00024
5 reset_marker_reader [function] [call site] 00025
4 jinit_input_controller [function] [call site] 00026
3 jpeg_mem_src_tj [function] [call site] 00027
2 _tjInitCompress [function] [call site] 00028
2 _tjInitDecompress [function] [call site] 00029
1 tj3DecompressHeader [function] [call site] 00030
2 snprintf [call site] 00031
2 snprintf [call site] 00032
2 snprintf [call site] 00033
2 _setjmp [call site] 00034
2 jpeg_mem_src_tj [function] [call site] 00035
2 jpeg_read_header [function] [call site] 00036
3 jpeg_consume_input [function] [call site] 00037
4 default_decompress_parms [function] [call site] 00038
3 jpeg_abort [function] [call site] 00039
2 setDecompParameters [function] [call site] 00040
3 getSubsamp [function] [call site] 00041
2 jpeg_abort_decompress [function] [call site] 00042
3 jpeg_abort [function] [call site] 00043
2 snprintf [call site] 00044
2 snprintf [call site] 00045
1 tj3Get [function] [call site] 00046
1 tj3Get [function] [call site] 00047
1 tj3Get [function] [call site] 00048
1 tj3Set [function] [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
2 snprintf [call site] 00081
2 snprintf [call site] 00082
2 snprintf [call site] 00083
2 snprintf [call site] 00084
2 snprintf [call site] 00085
2 snprintf [call site] 00086
2 snprintf [call site] 00087
2 snprintf [call site] 00088
2 snprintf [call site] 00089
2 snprintf [call site] 00090
2 snprintf [call site] 00091
2 snprintf [call site] 00092
2 snprintf [call site] 00093
2 snprintf [call site] 00094
2 snprintf [call site] 00095
1 tj3Set [function] [call site] 00096
1 tj3Get [function] [call site] 00097
1 tj3Set [function] [call site] 00098
1 tj3SetScalingFactor [function] [call site] 00099
2 snprintf [call site] 00100
2 snprintf [call site] 00101
2 snprintf [call site] 00102
1 tj3SetScalingFactor [function] [call site] 00103
1 tj3SetCroppingRegion [function] [call site] 00104
2 snprintf [call site] 00105
2 snprintf [call site] 00106
2 snprintf [call site] 00107
2 snprintf [call site] 00108
2 snprintf [call site] 00109
2 snprintf [call site] 00110
2 snprintf [call site] 00111
2 snprintf [call site] 00112
1 tj3SetCroppingRegion [function] [call site] 00113
1 tj3Set [function] [call site] 00114
1 tj3Set [function] [call site] 00115
1 tj3Alloc [function] [call site] 00116
1 tj3Decompress8 [function] [call site] 00117
2 snprintf [call site] 00118
2 snprintf [call site] 00119
2 snprintf [call site] 00120
2 _setjmp [call site] 00121
2 jpeg_mem_src_tj [function] [call site] 00122
2 jpeg_read_header [function] [call site] 00123
2 setDecompParameters [function] [call site] 00124
2 snprintf [call site] 00125
2 jpeg_start_decompress [function] [call site] 00126
3 jinit_master_decompress [function] [call site] 00127
4 master_selection [function] [call site] 00128
5 jpeg_calc_output_dimensions [function] [call site] 00129
6 jpeg_core_output_dimensions [function] [call site] 00130
7 jdiv_round_up [function] [call site] 00131
7 jdiv_round_up [function] [call site] 00132
7 jdiv_round_up [function] [call site] 00133
7 jdiv_round_up [function] [call site] 00134
7 jdiv_round_up [function] [call site] 00135
7 jdiv_round_up [function] [call site] 00136
7 jdiv_round_up [function] [call site] 00137
7 jdiv_round_up [function] [call site] 00138
7 jdiv_round_up [function] [call site] 00139
7 jdiv_round_up [function] [call site] 00140
7 jdiv_round_up [function] [call site] 00141
7 jdiv_round_up [function] [call site] 00142
7 jdiv_round_up [function] [call site] 00143
7 jdiv_round_up [function] [call site] 00144
7 jdiv_round_up [function] [call site] 00145
7 jdiv_round_up [function] [call site] 00146
7 jdiv_round_up [function] [call site] 00147
7 jdiv_round_up [function] [call site] 00148
7 jdiv_round_up [function] [call site] 00149
7 jdiv_round_up [function] [call site] 00150
7 jdiv_round_up [function] [call site] 00151
7 jdiv_round_up [function] [call site] 00152
7 jdiv_round_up [function] [call site] 00153
7 jdiv_round_up [function] [call site] 00154
7 jdiv_round_up [function] [call site] 00155
7 jdiv_round_up [function] [call site] 00156
7 jdiv_round_up [function] [call site] 00157
7 jdiv_round_up [function] [call site] 00158
7 jdiv_round_up [function] [call site] 00159
7 jdiv_round_up [function] [call site] 00160
7 jdiv_round_up [function] [call site] 00161
7 jdiv_round_up [function] [call site] 00162
6 jdiv_round_up [function] [call site] 00163
6 jdiv_round_up [function] [call site] 00164
6 use_merged_upsample [function] [call site] 00165
5 prepare_range_limit_table [function] [call site] 00166
5 use_merged_upsample [function] [call site] 00167
5 j12init_1pass_quantizer [function] [call site] 00168
6 create_colormap [function] [call site] 00169
7 select_ncolors [function] [call site] 00170
7 output_value [function] [call site] 00171
6 create_colorindex [function] [call site] 00172
7 largest_input_value [function] [call site] 00173
7 largest_input_value [function] [call site] 00174
6 alloc_fs_workspace [function] [call site] 00175
5 jinit_1pass_quantizer [function] [call site] 00176
5 j12init_2pass_quantizer [function] [call site] 00177
6 init_error_limit [function] [call site] 00178
5 jinit_2pass_quantizer [function] [call site] 00179
5 j12init_merged_upsampler [function] [call site] 00180
6 build_ycc_rgb_table [function] [call site] 00181
5 jinit_merged_upsampler [function] [call site] 00182
6 jsimd_can_h2v2_merged_upsample [function] [call site] 00183
7 init_simd [function] [call site] 00184
8 jpeg_simd_cpu_support [call site] 00185
8 __errno_location [call site] 00186
8 getenv [call site] 00187
8 strlen [call site] 00188
8 strncpy [call site] 00189
8 strcmp [call site] 00190
8 __errno_location [call site] 00191
8 getenv [call site] 00192
8 strlen [call site] 00193
8 strncpy [call site] 00194
8 strcmp [call site] 00195
8 __errno_location [call site] 00196
8 getenv [call site] 00197
8 strlen [call site] 00198
8 strncpy [call site] 00199
8 strcmp [call site] 00200
8 __errno_location [call site] 00201
8 getenv [call site] 00202
8 strlen [call site] 00203
8 strncpy [call site] 00204
8 strcmp [call site] 00205
6 jsimd_can_h2v1_merged_upsample [function] [call site] 00206
7 init_simd [function] [call site] 00207
5 j16init_color_deconverter [function] [call site] 00208
6 build_rgb_y_table [function] [call site] 00209
6 build_ycc_rgb_table [function] [call site] 00210
6 build_ycc_rgb_table [function] [call site] 00211
6 build_ycc_rgb_table [function] [call site] 00212
6 build_ycc_rgb_table [function] [call site] 00213
5 j16init_upsampler [function] [call site] 00214
6 jround_up [function] [call site] 00215
5 j12init_color_deconverter [function] [call site] 00216
5 j12init_upsampler [function] [call site] 00217
5 jinit_color_deconverter [function] [call site] 00218
6 jsimd_can_ycc_rgb [function] [call site] 00219
7 init_simd [function] [call site] 00220
6 jsimd_can_ycc_rgb565 [function] [call site] 00221
5 jinit_upsampler [function] [call site] 00222
6 jsimd_can_h2v1_fancy_upsample [function] [call site] 00223
7 init_simd [function] [call site] 00224
6 jsimd_can_h2v1_upsample [function] [call site] 00225
7 init_simd [function] [call site] 00226
6 jsimd_can_h2v2_fancy_upsample [function] [call site] 00227
7 init_simd [function] [call site] 00228
6 jsimd_can_h2v2_upsample [function] [call site] 00229
7 init_simd [function] [call site] 00230
5 j16init_d_post_controller [function] [call site] 00231
5 j12init_d_post_controller [function] [call site] 00232
6 jround_up [function] [call site] 00233
5 jinit_d_post_controller [function] [call site] 00234
5 j16init_lossless_decompressor [function] [call site] 00235
5 j12init_lossless_decompressor [function] [call site] 00236
5 jinit_lossless_decompressor [function] [call site] 00237
5 jinit_lhuff_decoder [function] [call site] 00238
5 j16init_d_diff_controller [function] [call site] 00239
6 jround_up [function] [call site] 00240
6 jround_up [function] [call site] 00241
6 jround_up [function] [call site] 00242
6 jround_up [function] [call site] 00243
5 j12init_d_diff_controller [function] [call site] 00244
5 jinit_d_diff_controller [function] [call site] 00245
5 j12init_inverse_dct [function] [call site] 00246
5 jinit_inverse_dct [function] [call site] 00247
5 jinit_arith_decoder [function] [call site] 00248
5 jinit_phuff_decoder [function] [call site] 00249
5 jinit_huff_decoder [function] [call site] 00250
6 std_huff_tables [function] [call site] 00251
7 add_huff_table [function] [call site] 00252
8 jpeg_alloc_huff_table [function] [call site] 00253
7 add_huff_table [function] [call site] 00254
7 add_huff_table [function] [call site] 00255
7 add_huff_table [function] [call site] 00256
5 j12init_d_coef_controller [function] [call site] 00257
6 jround_up [function] [call site] 00258
6 jround_up [function] [call site] 00259
5 jinit_d_coef_controller [function] [call site] 00260
5 j16init_d_main_controller [function] [call site] 00261
6 alloc_funny_pointers [function] [call site] 00262
5 j12init_d_main_controller [function] [call site] 00263
5 jinit_d_main_controller [function] [call site] 00264
3 output_pass_setup [function] [call site] 00265
2 jpeg_crop_scanline [function] [call site] 00266
3 jdiv_round_up [function] [call site] 00267
3 jdiv_round_up [function] [call site] 00268
3 jdiv_round_up [function] [call site] 00269
3 jinit_upsampler [function] [call site] 00270
2 snprintf [call site] 00271
2 snprintf [call site] 00272
2 snprintf [call site] 00273
2 snprintf [call site] 00274
2 _setjmp [call site] 00275
2 jpeg_skip_scanlines [function] [call site] 00276
3 read_and_discard_scanlines [function] [call site] 00277
4 jpeg_read_scanlines [function] [call site] 00278
3 set_wraparound_pointers [function] [call site] 00279
3 increment_simple_rowgroup_ctr [function] [call site] 00280
4 read_and_discard_scanlines [function] [call site] 00281
4 read_and_discard_scanlines [function] [call site] 00282
3 read_and_discard_scanlines [function] [call site] 00283
3 increment_simple_rowgroup_ctr [function] [call site] 00284
3 start_iMCU_row [function] [call site] 00285
3 read_and_discard_scanlines [function] [call site] 00286
3 increment_simple_rowgroup_ctr [function] [call site] 00287
2 snprintf [call site] 00288
2 jpeg_read_scanlines [function] [call site] 00289
2 jpeg_skip_scanlines [function] [call site] 00290
2 snprintf [call site] 00291
2 jpeg_read_scanlines [function] [call site] 00292
2 jpeg_finish_decompress [function] [call site] 00293
3 jpeg_abort [function] [call site] 00294
2 jpeg_abort_decompress [function] [call site] 00295
1 tj3GetErrorStr [function] [call site] 00296
1 strcmp [call site] 00297
1 tj3Decompress12 [function] [call site] 00298
2 jpeg12_crop_scanline [function] [call site] 00299
3 j12init_upsampler [function] [call site] 00300
2 jpeg12_skip_scanlines [function] [call site] 00301
2 jpeg12_read_scanlines [function] [call site] 00302
2 jpeg12_skip_scanlines [function] [call site] 00303
2 jpeg12_read_scanlines [function] [call site] 00304
1 tj3GetErrorStr [function] [call site] 00305
1 strcmp [call site] 00306
1 tj3Decompress16 [function] [call site] 00307
2 jpeg16_read_scanlines [function] [call site] 00308
1 tj3GetErrorStr [function] [call site] 00309
1 strcmp [call site] 00310
1 tj3Free [function] [call site] 00311
1 tj3Free [function] [call site] 00312
1 tj3Destroy [function] [call site] 00313
2 _setjmp [call site] 00314
2 jpeg_destroy_compress [function] [call site] 00315
3 jpeg_destroy [function] [call site] 00316
2 _setjmp [call site] 00317
2 jpeg_destroy_decompress [function] [call site] 00318
3 jpeg_destroy [function] [call site] 00319