High level conclusions

Fuzzers reach 90.59% of cyclomatic complexity.

Fuzzers reach 84.89% of all functions.

Fuzzer cjpeg_fuzzer is blocked:

The runtime code coverage of cjpeg_fuzzer covers 10.42% of its statically reachable code. This means there is some place that blocks the fuzzer to continue exploring more code at run time.

Reachability and coverage overview

Functions statically reachable by fuzzers

635 / 748

Cyclomatic complexity statically reachable by fuzzers

6665 / 7357

Runtime code coverage of functions

168 / 748

The following table shows data about each function in the project. The functions included in this table correspond to all functions that exist in the executables of the fuzzers. As such, there may be functions that are from third-party libraries.

For further technical details on the meaning of columns in the below table, please see the Glossary .

Func name	Functions filename	Args	Function call depth	Reached by Fuzzers	Fuzzers runtime hit	Func lines hit %	I Count	BB Count	Cyclomatic complexity	Functions reached	Reached by functions	Accumulated cyclomatic complexity	Undiscovered complexity

Fuzzer: cjpeg_fuzzer

Call tree

The calltree shows the control flow of the fuzzer. This is overlaid with coverage information to display how much of the potential code a fuzzer can reach is in fact covered at runtime. In the following there is a link to a detailed calltree visualisation as well as a bitmap showing a high-level view of the calltree. For further information about these topics please see the glossary for full calltree and calltree overview

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	736	88.5%
gold	[1:9]	0	0.0%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	7	0.84%
lawngreen	50+	88	10.5%
All colors	831	100

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
21	372	5 : View List ['keymatch', '__isoc99_sscanf', 'jpeg_set_colorspace', 'exit', 'jpeg_enable_lossless']	374	725	parse_switches(jpeg_compress_struct*,int,char**,int,int)	call site: 00000	/src/libjpeg-turbo.main/fuzz/../cjpeg.c:321
18	18	6 : View List ['ftell', 'malloc', 'fopen', 'fseek', 'exit', 'fread']	1956	2229	cjpeg_main	call site: 00282	/src/libjpeg-turbo.main/fuzz/../cjpeg.c:721
6	6	1 : View List ['usage()']	1974	2247	cjpeg_main	call site: 00272	/src/libjpeg-turbo.main/fuzz/../cjpeg.c:693
2	4	2 : View List ['jpeg_get_small', 'out_of_memory']	2	4	alloc_small	call site: 00024	/src/libjpeg-turbo.main/jmemmgr.c:318
2	2	1 : View List ['read_stdin']	1964	2237	cjpeg_main	call site: 00274	/src/libjpeg-turbo.main/fuzz/../cjpeg.c:700
0	2	1 : View List ['jpeg_mem_term']	14	16	jinit_memory_mgr	call site: 00018	/src/libjpeg-turbo.main/jmemmgr.c:1227
0	0	None	1974	2776	cjpeg_main	call site: 00003	/src/libjpeg-turbo.main/fuzz/../cjpeg.c:642
0	0	None	1974	2247	cjpeg_main	call site: 00095	/src/libjpeg-turbo.main/fuzz/../cjpeg.c:670
0	0	None	1960	2233	cjpeg_main	call site: 00278	/src/libjpeg-turbo.main/fuzz/../cjpeg.c:711
0	0	None	374	725	parse_switches(jpeg_compress_struct*,int,char**,int,int)	call site: 00000	/src/libjpeg-turbo.main/fuzz/../cjpeg.c:339
0	0	None	374	725	parse_switches(jpeg_compress_struct*,int,char**,int,int)	call site: 00000	/src/libjpeg-turbo.main/fuzz/../cjpeg.c:345
0	0	None	374	725	parse_switches(jpeg_compress_struct*,int,char**,int,int)	call site: 00000	/src/libjpeg-turbo.main/fuzz/../cjpeg.c:347

Runtime coverage analysis

Covered functions

31

Functions that are reachable but not covered

275

Reachable functions

307

Percentage of reachable functions covered

10.42%

NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
libjpeg-turbo.main/fuzz/cjpeg.cc	1
libjpeg-turbo.main/fuzz/../cjpeg.c	7
libjpeg-turbo.main/jerror.c	6
libjpeg-turbo.main/jcomapi.c	4
libjpeg-turbo.main/jcapimin.c	7
libjpeg-turbo.main/jmemmgr.c	16
libjpeg-turbo.main/jmemnobs.c	8
libjpeg-turbo.main/jutils.c	4
libjpeg-turbo.main/jcparam.c	12
libjpeg-turbo.main/jstdhuff.c	2
libjpeg-turbo.main/cdjpeg.c	6
libjpeg-turbo.main/rdswitch.c	9
libjpeg-turbo.main/jdatadst.c	8
libjpeg-turbo.main/jcapistd.c	4
libjpeg-turbo.main/jcinit.c	1
libjpeg-turbo.main/jcmaster.c	8
libjpeg-turbo.main/jccolor.c	11
libjpeg-turbo.main/jcsample.c	12
libjpeg-turbo.main/jcprepct.c	8
libjpeg-turbo.main/simd/x86_64/jsimd.c	24
libjpeg-turbo.main/jclossls.c	15
libjpeg-turbo.main/jclhuff.c	9
libjpeg-turbo.main/jchuff.c	14
libjpeg-turbo.main/jcdiffct.c	8
libjpeg-turbo.main/jcdctmgr.c	9
libjpeg-turbo.main/jfdctint.c	1
libjpeg-turbo.main/jfdctfst.c	1
libjpeg-turbo.main/jfdctflt.c	1
libjpeg-turbo.main/jcarith.c	11
libjpeg-turbo.main/jcphuff.c	17
libjpeg-turbo.main/jccoefct.c	7
libjpeg-turbo.main/jcmainct.c	5
libjpeg-turbo.main/jcmarker.c	19
libjpeg-turbo.main/jcicc.c	1

Fuzzer: libjpeg_turbo_fuzzer_2_1_x

Call tree

The calltree shows the control flow of the fuzzer. This is overlaid with coverage information to display how much of the potential code a fuzzer can reach is in fact covered at runtime. In the following there is a link to a detailed calltree visualisation as well as a bitmap showing a high-level view of the calltree. For further information about these topics please see the glossary for full calltree and calltree overview

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	167	36.5%
gold	[1:9]	8	1.75%
yellow	[10:29]	4	0.87%
greenyellow	[30:49]	3	0.65%
lawngreen	50+	275	60.1%
All colors	457	100

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
218	218	2 : View List ['jinit_2pass_quantizer', 'jinit_1pass_quantizer']	218	1530	master_selection	call site: 00197	/src/libjpeg-turbo.2.1.x/jdmaster.c:479
2	2	1 : View List ['jsimd_h2v2_upsample_sse2']	2	2	jsimd_h2v2_upsample	call site: 00000	/src/libjpeg-turbo.main/simd/x86_64/jsimd.c:424
2	2	1 : View List ['jsimd_h2v1_upsample_sse2']	2	2	jsimd_h2v1_upsample	call site: 00000	/src/libjpeg-turbo.main/simd/x86_64/jsimd.c:439
2	2	1 : View List ['jsimd_h2v2_fancy_upsample_sse2']	2	2	jsimd_h2v2_fancy_upsample	call site: 00000	/src/libjpeg-turbo.main/simd/x86_64/jsimd.c:496
2	2	1 : View List ['jsimd_h2v1_fancy_upsample_sse2']	2	2	jsimd_h2v1_fancy_upsample	call site: 00000	/src/libjpeg-turbo.main/simd/x86_64/jsimd.c:513
2	2	1 : View List ['jsimd_idct_islow_sse2']	2	2	jsimd_idct_islow	call site: 00000	/src/libjpeg-turbo.main/simd/x86_64/jsimd.c:1011
0	47	1 : View List ['init_simd']	4	51	jsimd_h2v2_upsample	call site: 00000	/src/libjpeg-turbo.main/simd/x86_64/jsimd.c:421
0	47	1 : View List ['init_simd']	4	51	jsimd_h2v1_upsample	call site: 00000	/src/libjpeg-turbo.main/simd/x86_64/jsimd.c:436
0	47	1 : View List ['init_simd']	4	51	jsimd_h2v2_fancy_upsample	call site: 00000	/src/libjpeg-turbo.main/simd/x86_64/jsimd.c:493
0	47	1 : View List ['init_simd']	4	51	jsimd_h2v1_fancy_upsample	call site: 00000	/src/libjpeg-turbo.main/simd/x86_64/jsimd.c:510
0	47	1 : View List ['init_simd']	4	51	jsimd_idct_islow	call site: 00000	/src/libjpeg-turbo.main/simd/x86_64/jsimd.c:1008
0	47	1 : View List ['init_simd']	0	47	jsimd_ycc_rgb_convert	call site: 00000	/src/libjpeg-turbo.main/simd/x86_64/jsimd.c:252

Runtime coverage analysis

Covered functions

178

Functions that are reachable but not covered

83

Reachable functions

242

Percentage of reachable functions covered

65.7%

NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
libjpeg-turbo.2.1.x/fuzz/decompress.cc	1
libjpeg-turbo.2.1.x/turbojpeg.c	10
libjpeg-turbo.2.1.x/jerror.c	6
libjpeg-turbo.2.1.x/jcomapi.c	4
libjpeg-turbo.2.1.x/jdapimin.c	7
libjpeg-turbo.2.1.x/jmemmgr.c	16
libjpeg-turbo.2.1.x/jmemnobs.c	8
libjpeg-turbo.2.1.x/jutils.c	5
libjpeg-turbo.2.1.x/jdmarker.c	17
libjpeg-turbo.2.1.x/jdinput.c	8
libjpeg-turbo.2.1.x/jdatasrc-tj.c	5
libjpeg-turbo.2.1.x/jdapistd.c	3
libjpeg-turbo.2.1.x/jdmaster.c	8
libjpeg-turbo.2.1.x/jquant1.c	17
libjpeg-turbo.2.1.x/jquant2.c	18
libjpeg-turbo.2.1.x/jdmerge.c	11
libjpeg-turbo.2.1.x/simd/x86_64/jsimd.c	14
libjpeg-turbo.2.1.x/jdcolor.c	17
libjpeg-turbo.2.1.x/jdsample.c	11
libjpeg-turbo.2.1.x/jdpostct.c	5
libjpeg-turbo.2.1.x/jddctmgr.c	2
libjpeg-turbo.2.1.x/jdarith.c	10
libjpeg-turbo.2.1.x/jdphuff.c	7
libjpeg-turbo.2.1.x/jdhuff.c	8
libjpeg-turbo.2.1.x/jstdhuff.c	2
libjpeg-turbo.2.1.x/jdcoefct.c	9
libjpeg-turbo.2.1.x/jdcoefct.h	1
libjpeg-turbo.2.1.x/jdmainct.c	8
libjpeg-turbo.2.1.x/jdmainct.h	1
libjpeg-turbo.2.1.x/jcapimin.c	1

Fuzzer: compress_yuv_fuzzer

Call tree

The calltree shows the control flow of the fuzzer. This is overlaid with coverage information to display how much of the potential code a fuzzer can reach is in fact covered at runtime. In the following there is a link to a detailed calltree visualisation as well as a bitmap showing a high-level view of the calltree. For further information about these topics please see the glossary for full calltree and calltree overview

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	385	42.4%
gold	[1:9]	5	0.55%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	516	56.9%
All colors	906	100

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
451	451	7 : View List ['j12init_lossless_compressor', 'jinit_c_diff_controller', 'j12init_c_diff_controller', 'j16init_lossless_compressor', 'jinit_lhuff_encoder', 'j16init_c_diff_controller', 'jinit_lossless_compressor']	487	613	jinit_compress_master	call site: 00508	/src/libjpeg-turbo.main/jcinit.c:64
394	394	1 : View List ['encode_one_block']	394	394	encode_mcu_huff	call site: 00756	/src/libjpeg-turbo.main/jchuff.c:724
55	55	1 : View List ['j12init_forward_dct']	143	1324	jinit_compress_master	call site: 00566	/src/libjpeg-turbo.main/jcinit.c:97
52	52	1 : View List ['j12init_c_coef_controller']	88	214	jinit_compress_master	call site: 00746	/src/libjpeg-turbo.main/jcinit.c:120
18	18	1 : View List ['j16init_c_main_controller']	18	126	jinit_compress_master	call site: 00788	/src/libjpeg-turbo.main/jcinit.c:128
18	18	1 : View List ['j12init_c_main_controller']	18	126	jinit_compress_master	call site: 00789	/src/libjpeg-turbo.main/jcinit.c:134
16	16	1 : View List ['do_barray_io']	16	18	access_virt_barray	call site: 00071	/src/libjpeg-turbo.main/jmemmgr.c:1024
8	8	2 : View List ['__errno_location', 'strerror']	10	25	tj3LoadImage8	call site: 00210	/src/libjpeg-turbo.main/turbojpeg-mp.c:321
8	8	1 : View List ['fill_scans']	8	20	jpeg_simple_progression	call site: 00372	/src/libjpeg-turbo.main/jcparam.c:516
2	4	2 : View List ['jpeg_get_small', 'out_of_memory']	2	4	alloc_small	call site: 00034	/src/libjpeg-turbo.main/jmemmgr.c:318
2	2	1 : View List ['out_of_memory']	2	109	alloc_sarray	call site: 00043	/src/libjpeg-turbo.main/jmemmgr.c:461
2	2	1 : View List ['fill_scans']	2	2	fill_dc_scans	call site: 00373	/src/libjpeg-turbo.main/jcparam.c:449

Runtime coverage analysis

Covered functions

194

Functions that are reachable but not covered

170

Reachable functions

357

Percentage of reachable functions covered

52.38%

NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
libjpeg-turbo.main/fuzz/compress_yuv.cc	1
libjpeg-turbo.main/turbojpeg.c	20
libjpeg-turbo.main/jerror.c	6
libjpeg-turbo.main/jcomapi.c	4
libjpeg-turbo.main/jcapimin.c	5
libjpeg-turbo.main/jmemmgr.c	16
libjpeg-turbo.main/jmemnobs.c	8
libjpeg-turbo.main/jutils.c	5
libjpeg-turbo.main/jdatadst-tj.c	4
libjpeg-turbo.main/jdapimin.c	2
libjpeg-turbo.main/jdmarker.c	17
libjpeg-turbo.main/jdinput.c	8
libjpeg-turbo.main/jdatasrc-tj.c	5
libjpeg-turbo.main/turbojpeg-mp.c	1
libjpeg-turbo.main/rdbmp.c	9
libjpeg-turbo.main/rdppm.c	21
libjpeg-turbo.main/jcparam.c	12
libjpeg-turbo.main/jstdhuff.c	2
libjpeg-turbo.main/jcmaster.c	8
libjpeg-turbo.main/jccolor.c	11
libjpeg-turbo.main/simd/x86_64/jsimd.c	24
libjpeg-turbo.main/jcsample.c	12
libjpeg-turbo.main/jcapistd.c	2
libjpeg-turbo.main/jcinit.c	1
libjpeg-turbo.main/jcprepct.c	8
libjpeg-turbo.main/jclossls.c	15
libjpeg-turbo.main/jclhuff.c	9
libjpeg-turbo.main/jchuff.c	14
libjpeg-turbo.main/jcdiffct.c	8
libjpeg-turbo.main/jcdctmgr.c	9
libjpeg-turbo.main/jfdctint.c	1
libjpeg-turbo.main/jfdctfst.c	1
libjpeg-turbo.main/jfdctflt.c	1
libjpeg-turbo.main/jcarith.c	11
libjpeg-turbo.main/jcphuff.c	17
libjpeg-turbo.main/jccoefct.c	7
libjpeg-turbo.main/jcmainct.c	5
libjpeg-turbo.main/jcmarker.c	19

Fuzzer: compress12_lossless_fuzzer

Call tree

The calltree shows the control flow of the fuzzer. This is overlaid with coverage information to display how much of the potential code a fuzzer can reach is in fact covered at runtime. In the following there is a link to a detailed calltree visualisation as well as a bitmap showing a high-level view of the calltree. For further information about these topics please see the glossary for full calltree and calltree overview

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	375	44.2%
gold	[1:9]	9	1.06%
yellow	[10:29]	3	0.35%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	461	54.3%
All colors	848	100

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
451	451	7 : View List ['j12init_lossless_compressor', 'jinit_c_diff_controller', 'j12init_c_diff_controller', 'j16init_lossless_compressor', 'jinit_lhuff_encoder', 'j16init_c_diff_controller', 'jinit_lossless_compressor']	487	613	jinit_compress_master	call site: 00453	/src/libjpeg-turbo.main/jcinit.c:64
394	394	1 : View List ['encode_one_block']	394	394	encode_mcu_huff	call site: 00701	/src/libjpeg-turbo.main/jchuff.c:724
321	321	3 : View List ['jinit_c_prep_controller', 'jinit_downsampler', 'jinit_color_converter']	1037	2273	jinit_compress_master	call site: 00425	/src/libjpeg-turbo.main/jcinit.c:52
203	203	3 : View List ['j16init_color_converter', 'j16init_c_prep_controller', 'j16init_downsampler']	919	2155	jinit_compress_master	call site: 00374	/src/libjpeg-turbo.main/jcinit.c:43
18	18	1 : View List ['j16init_c_main_controller']	18	126	jinit_compress_master	call site: 00733	/src/libjpeg-turbo.main/jcinit.c:128
16	16	1 : View List ['do_barray_io']	16	18	access_virt_barray	call site: 00071	/src/libjpeg-turbo.main/jmemmgr.c:1024
8	8	2 : View List ['__errno_location', 'strerror']	10	25	tj3LoadImage12	call site: 00209	/src/libjpeg-turbo.main/turbojpeg-mp.c:321
8	8	1 : View List ['fill_scans']	8	20	jpeg_simple_progression	call site: 00351	/src/libjpeg-turbo.main/jcparam.c:516
7	7	1 : View List ['jpeg_abort_compress']	7	7	tj3Compress12	call site: 00839	/src/libjpeg-turbo.main/turbojpeg-mp.c:128
4	4	1 : View List ['create_context_buffer']	4	4	j12init_c_prep_controller	call site: 00437	/src/libjpeg-turbo.main/jcprepct.c:343
2	4	2 : View List ['jpeg_get_small', 'out_of_memory']	2	4	alloc_small	call site: 00034	/src/libjpeg-turbo.main/jmemmgr.c:318
2	2	1 : View List ['out_of_memory']	2	109	alloc_sarray	call site: 00043	/src/libjpeg-turbo.main/jmemmgr.c:461

Runtime coverage analysis

Covered functions

191

Functions that are reachable but not covered

169

Reachable functions

350

Percentage of reachable functions covered

51.71%

NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
libjpeg-turbo.main/fuzz/compress12.cc	1
libjpeg-turbo.main/turbojpeg.c	12
libjpeg-turbo.main/jerror.c	6
libjpeg-turbo.main/jcomapi.c	4
libjpeg-turbo.main/jcapimin.c	5
libjpeg-turbo.main/jmemmgr.c	16
libjpeg-turbo.main/jmemnobs.c	8
libjpeg-turbo.main/jutils.c	4
libjpeg-turbo.main/jdatadst-tj.c	4
libjpeg-turbo.main/jdapimin.c	2
libjpeg-turbo.main/jdmarker.c	17
libjpeg-turbo.main/jdinput.c	8
libjpeg-turbo.main/jdatasrc-tj.c	5
libjpeg-turbo.main/turbojpeg-mp.c	2
libjpeg-turbo.main/rdbmp.c	9
libjpeg-turbo.main/rdppm.c	21
libjpeg-turbo.main/jcparam.c	12
libjpeg-turbo.main/jstdhuff.c	2
libjpeg-turbo.main/jcapistd.c	2
libjpeg-turbo.main/jcinit.c	1
libjpeg-turbo.main/jcmaster.c	8
libjpeg-turbo.main/jccolor.c	11
libjpeg-turbo.main/jcsample.c	12
libjpeg-turbo.main/jcprepct.c	8
libjpeg-turbo.main/simd/x86_64/jsimd.c	24
libjpeg-turbo.main/jclossls.c	15
libjpeg-turbo.main/jclhuff.c	9
libjpeg-turbo.main/jchuff.c	14
libjpeg-turbo.main/jcdiffct.c	8
libjpeg-turbo.main/jcdctmgr.c	9
libjpeg-turbo.main/jfdctint.c	1
libjpeg-turbo.main/jfdctfst.c	1
libjpeg-turbo.main/jfdctflt.c	1
libjpeg-turbo.main/jcarith.c	11
libjpeg-turbo.main/jcphuff.c	17
libjpeg-turbo.main/jccoefct.c	7
libjpeg-turbo.main/jcmainct.c	5
libjpeg-turbo.main/jcmarker.c	19

Fuzzer: compress12_fuzzer

Call tree

The calltree shows the control flow of the fuzzer. This is overlaid with coverage information to display how much of the potential code a fuzzer can reach is in fact covered at runtime. In the following there is a link to a detailed calltree visualisation as well as a bitmap showing a high-level view of the calltree. For further information about these topics please see the glossary for full calltree and calltree overview

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	375	44.2%
gold	[1:9]	9	1.06%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	3	0.35%
lawngreen	50+	461	54.3%
All colors	848	100

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
451	451	7 : View List ['j12init_lossless_compressor', 'jinit_c_diff_controller', 'j12init_c_diff_controller', 'j16init_lossless_compressor', 'jinit_lhuff_encoder', 'j16init_c_diff_controller', 'jinit_lossless_compressor']	487	613	jinit_compress_master	call site: 00453	/src/libjpeg-turbo.main/jcinit.c:64
394	394	1 : View List ['encode_one_block']	394	394	encode_mcu_huff	call site: 00701	/src/libjpeg-turbo.main/jchuff.c:724
321	321	3 : View List ['jinit_c_prep_controller', 'jinit_downsampler', 'jinit_color_converter']	1037	2273	jinit_compress_master	call site: 00425	/src/libjpeg-turbo.main/jcinit.c:52
203	203	3 : View List ['j16init_color_converter', 'j16init_c_prep_controller', 'j16init_downsampler']	919	2155	jinit_compress_master	call site: 00374	/src/libjpeg-turbo.main/jcinit.c:43
18	18	1 : View List ['j16init_c_main_controller']	18	126	jinit_compress_master	call site: 00733	/src/libjpeg-turbo.main/jcinit.c:128
16	16	1 : View List ['do_barray_io']	16	18	access_virt_barray	call site: 00071	/src/libjpeg-turbo.main/jmemmgr.c:1024
8	8	2 : View List ['__errno_location', 'strerror']	10	25	tj3LoadImage12	call site: 00209	/src/libjpeg-turbo.main/turbojpeg-mp.c:321
8	8	1 : View List ['fill_scans']	8	20	jpeg_simple_progression	call site: 00351	/src/libjpeg-turbo.main/jcparam.c:516
7	7	1 : View List ['jpeg_abort_compress']	7	7	tj3Compress12	call site: 00839	/src/libjpeg-turbo.main/turbojpeg-mp.c:128
4	4	1 : View List ['create_context_buffer']	4	4	j12init_c_prep_controller	call site: 00437	/src/libjpeg-turbo.main/jcprepct.c:343
2	4	2 : View List ['jpeg_get_small', 'out_of_memory']	2	4	alloc_small	call site: 00034	/src/libjpeg-turbo.main/jmemmgr.c:318
2	2	1 : View List ['out_of_memory']	2	109	alloc_sarray	call site: 00043	/src/libjpeg-turbo.main/jmemmgr.c:461

Runtime coverage analysis

Covered functions

191

Functions that are reachable but not covered

169

Reachable functions

350

Percentage of reachable functions covered

51.71%

NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
libjpeg-turbo.main/fuzz/compress12.cc	1
libjpeg-turbo.main/turbojpeg.c	12
libjpeg-turbo.main/jerror.c	6
libjpeg-turbo.main/jcomapi.c	4
libjpeg-turbo.main/jcapimin.c	5
libjpeg-turbo.main/jmemmgr.c	16
libjpeg-turbo.main/jmemnobs.c	8
libjpeg-turbo.main/jutils.c	4
libjpeg-turbo.main/jdatadst-tj.c	4
libjpeg-turbo.main/jdapimin.c	2
libjpeg-turbo.main/jdmarker.c	17
libjpeg-turbo.main/jdinput.c	8
libjpeg-turbo.main/jdatasrc-tj.c	5
libjpeg-turbo.main/turbojpeg-mp.c	2
libjpeg-turbo.main/rdbmp.c	9
libjpeg-turbo.main/rdppm.c	21
libjpeg-turbo.main/jcparam.c	12
libjpeg-turbo.main/jstdhuff.c	2
libjpeg-turbo.main/jcapistd.c	2
libjpeg-turbo.main/jcinit.c	1
libjpeg-turbo.main/jcmaster.c	8
libjpeg-turbo.main/jccolor.c	11
libjpeg-turbo.main/jcsample.c	12
libjpeg-turbo.main/jcprepct.c	8
libjpeg-turbo.main/simd/x86_64/jsimd.c	24
libjpeg-turbo.main/jclossls.c	15
libjpeg-turbo.main/jclhuff.c	9
libjpeg-turbo.main/jchuff.c	14
libjpeg-turbo.main/jcdiffct.c	8
libjpeg-turbo.main/jcdctmgr.c	9
libjpeg-turbo.main/jfdctint.c	1
libjpeg-turbo.main/jfdctfst.c	1
libjpeg-turbo.main/jfdctflt.c	1
libjpeg-turbo.main/jcarith.c	11
libjpeg-turbo.main/jcphuff.c	17
libjpeg-turbo.main/jccoefct.c	7
libjpeg-turbo.main/jcmainct.c	5
libjpeg-turbo.main/jcmarker.c	19

Fuzzer: transform_fuzzer

Call tree

The calltree shows the control flow of the fuzzer. This is overlaid with coverage information to display how much of the potential code a fuzzer can reach is in fact covered at runtime. In the following there is a link to a detailed calltree visualisation as well as a bitmap showing a high-level view of the calltree. For further information about these topics please see the glossary for full calltree and calltree overview

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	253	33.4%
gold	[1:9]	9	1.18%
yellow	[10:29]	2	0.26%
greenyellow	[30:49]	2	0.26%
lawngreen	50+	491	64.8%
All colors	757	100

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
394	394	1 : View List ['encode_one_block']	394	394	encode_mcu_huff	call site: 00586	/src/libjpeg-turbo.main/jchuff.c:724
50	50	3 : View List ['do_crop_ext_zero', 'do_crop_ext_flat', 'do_crop_ext_reflect']	50	50	jtransform_execute_transform	call site: 00712	/src/libjpeg-turbo.2.1.x/transupp.c:2169
38	38	1 : View List ['adjust_exif_parameters']	38	38	jtransform_adjust_parameters	call site: 00390	/src/libjpeg-turbo.2.1.x/transupp.c:2132
16	16	1 : View List ['do_barray_io']	16	18	access_virt_barray	call site: 00069	/src/libjpeg-turbo.main/jmemmgr.c:1024
8	8	1 : View List ['jtransform_perfect_transform']	20	40	jtransform_request_workspace	call site: 00242	/src/libjpeg-turbo.2.1.x/transupp.c:1523
2	4	2 : View List ['jpeg_get_small', 'out_of_memory']	2	4	alloc_small	call site: 00032	/src/libjpeg-turbo.main/jmemmgr.c:318
2	2	1 : View List ['out_of_memory']	2	2	alloc_large	call site: 00038	/src/libjpeg-turbo.main/jmemmgr.c:394
0	7	1 : View List ['jpeg_default_colorspace']	0	55	jpeg_simple_progression	call site: 00396	/src/libjpeg-turbo.main/jcparam.c:482
0	7	1 : View List ['jpeg_default_colorspace']	0	30	jinit_c_master_control	call site: 00430	/src/libjpeg-turbo.main/jcmaster.c:630
0	2	1 : View List ['jpeg_mem_term']	14	16	jinit_memory_mgr	call site: 00026	/src/libjpeg-turbo.main/jmemmgr.c:1227
0	2	1 : View List ['fill_scans']	0	2	fill_dc_scans	call site: 00398	/src/libjpeg-turbo.main/jcparam.c:449
0	0	1 : View List ['emit_restart.1442']	394	409	encode_mcu_huff	call site: 00585	/src/libjpeg-turbo.main/jchuff.c:716

Runtime coverage analysis

Covered functions

207

Functions that are reachable but not covered

66

Reachable functions

268

Percentage of reachable functions covered

75.37%

NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
libjpeg-turbo.main/fuzz/transform.cc	1
libjpeg-turbo.main/turbojpeg.c	15
libjpeg-turbo.main/jerror.c	6
libjpeg-turbo.main/jcomapi.c	4
libjpeg-turbo.main/jcapimin.c	6
libjpeg-turbo.main/jmemmgr.c	16
libjpeg-turbo.main/jmemnobs.c	8
libjpeg-turbo.main/jutils.c	4
libjpeg-turbo.main/jdatadst-tj.c	4
libjpeg-turbo.main/jdapimin.c	7
libjpeg-turbo.main/jdmarker.c	19
libjpeg-turbo.main/jdinput.c	8
libjpeg-turbo.main/jdatasrc-tj.c	5
libjpeg-turbo.main/transupp.c	30
libjpeg-turbo.main/jdtrans.c	2
libjpeg-turbo.main/jdarith.c	10
libjpeg-turbo.main/jdphuff.c	7
libjpeg-turbo.main/jdhuff.c	8
libjpeg-turbo.main/jstdhuff.c	2
libjpeg-turbo.main/jdcoefct.c	10
libjpeg-turbo.main/jdcoefct.h	1
libjpeg-turbo.main/jctrans.c	8
libjpeg-turbo.main/jcparam.c	11
libjpeg-turbo.main/jcmaster.c	8
libjpeg-turbo.main/jcarith.c	11
libjpeg-turbo.main/jcphuff.c	17
libjpeg-turbo.main/simd/x86_64/jsimd.c	7
libjpeg-turbo.main/jchuff.c	14
libjpeg-turbo.main/jcmarker.c	19

Fuzzer: cjpeg_fuzzer_2_0_x

Call tree

The calltree shows the control flow of the fuzzer. This is overlaid with coverage information to display how much of the potential code a fuzzer can reach is in fact covered at runtime. In the following there is a link to a detailed calltree visualisation as well as a bitmap showing a high-level view of the calltree. For further information about these topics please see the glossary for full calltree and calltree overview

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	406	48.8%
gold	[1:9]	6	0.72%
yellow	[10:29]	1	0.12%
greenyellow	[30:49]	2	0.24%
lawngreen	50+	416	50.0%
All colors	831	100

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
21	372	5 : View List ['keymatch', '__isoc99_sscanf', 'jpeg_set_colorspace', 'exit', 'jpeg_enable_lossless']	327	725	parse_switches(jpeg_compress_struct*,int,char**,int,int)	call site: 00000	/src/libjpeg-turbo.main/fuzz/../cjpeg.c:321
2	2	1 : View List ['out_of_memory']	2	2	alloc_large	call site: 00030	/src/libjpeg-turbo.main/jmemmgr.c:394
0	0	None	327	725	parse_switches(jpeg_compress_struct*,int,char**,int,int)	call site: 00000	/src/libjpeg-turbo.main/fuzz/../cjpeg.c:419
0	0	None	327	725	parse_switches(jpeg_compress_struct*,int,char**,int,int)	call site: 00000	/src/libjpeg-turbo.main/fuzz/../cjpeg.c:445
0	0	None	327	725	parse_switches(jpeg_compress_struct*,int,char**,int,int)	call site: 00000	/src/libjpeg-turbo.main/fuzz/../cjpeg.c:447
0	0	None	327	725	parse_switches(jpeg_compress_struct*,int,char**,int,int)	call site: 00000	/src/libjpeg-turbo.main/fuzz/../cjpeg.c:490
0	0	None	53	106	jinit_color_converter	call site: 00421	/src/libjpeg-turbo.main/jccolor.c:568
0	0	None	53	106	jinit_color_converter	call site: 00421	/src/libjpeg-turbo.main/jccolor.c:594
0	0	None	51	102	jinit_downsampler	call site: 00456	/src/libjpeg-turbo.main/jcsample.c:511
0	0	None	24	24	start_pass_fdctmgr	call site: 00477	/src/libjpeg-turbo.main/jcdctmgr.c:248
0	0	None	24	24	init_simd	call site: 00426	/src/libjpeg-turbo.main/simd/x86_64/jsimd.c:56
0	0	None	6	10	alloc_large	call site: 00026	/src/libjpeg-turbo.main/jmemmgr.c:375

Runtime coverage analysis

Covered functions

174

Functions that are reachable but not covered

125

Reachable functions

299

Percentage of reachable functions covered

58.19%

NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
libjpeg-turbo.2.0.x/fuzz/cjpeg.cc	1
libjpeg-turbo.2.0.x/fuzz/../cjpeg.c	6
libjpeg-turbo.2.0.x/jerror.c	6
libjpeg-turbo.2.0.x/jcomapi.c	4
libjpeg-turbo.2.0.x/jcapimin.c	7
libjpeg-turbo.2.0.x/jmemmgr.c	16
libjpeg-turbo.2.0.x/jmemnobs.c	8
libjpeg-turbo.2.0.x/jutils.c	4
libjpeg-turbo.2.0.x/jcparam.c	11
libjpeg-turbo.2.0.x/jstdhuff.c	2
libjpeg-turbo.2.0.x/cdjpeg.c	3
libjpeg-turbo.2.0.x/rdswitch.c	9
libjpeg-turbo.2.0.x/rdtarga.c	13
libjpeg-turbo.2.0.x/rdbmp.c	9
libjpeg-turbo.2.0.x/rdppm.c	18
libjpeg-turbo.2.0.x/jdatadst.c	8
libjpeg-turbo.2.0.x/jcapistd.c	2
libjpeg-turbo.2.0.x/jcinit.c	1
libjpeg-turbo.2.0.x/jcmaster.c	8
libjpeg-turbo.2.0.x/jccolor.c	9
libjpeg-turbo.2.0.x/simd/x86_64/jsimd.c	25
libjpeg-turbo.2.0.x/jcsample.c	10
libjpeg-turbo.2.0.x/jcprepct.c	6
libjpeg-turbo.2.0.x/jcdctmgr.c	10
libjpeg-turbo.2.0.x/jfdctint.c	1
libjpeg-turbo.2.0.x/jfdctfst.c	1
libjpeg-turbo.2.0.x/jfdctflt.c	1
libjpeg-turbo.2.0.x/jcarith.c	11
libjpeg-turbo.2.0.x/jcphuff.c	17
libjpeg-turbo.2.0.x/jchuff.c	14
libjpeg-turbo.2.0.x/jccoefct.c	6
libjpeg-turbo.2.0.x/jcmainct.c	2
libjpeg-turbo.2.0.x/jcmarker.c	19
libjpeg-turbo.2.0.x/jcicc.c	1

Fuzzer: cjpeg_fuzzer_2_1_x

Call tree

The calltree shows the control flow of the fuzzer. This is overlaid with coverage information to display how much of the potential code a fuzzer can reach is in fact covered at runtime. In the following there is a link to a detailed calltree visualisation as well as a bitmap showing a high-level view of the calltree. For further information about these topics please see the glossary for full calltree and calltree overview

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	417	47.4%
gold	[1:9]	5	0.56%
yellow	[10:29]	2	0.22%
greenyellow	[30:49]	5	0.56%
lawngreen	50+	449	51.1%
All colors	878	100

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
2	2	1 : View List ['fread']	2	2	get_8bit_row	call site: 00302	/src/libjpeg-turbo.2.1.x/rdbmp.c:156
2	2	1 : View List ['fread']	2	2	get_32bit_row	call site: 00338	/src/libjpeg-turbo.2.1.x/rdbmp.c:294
2	2	1 : View List ['jsimd_h2v1_downsample_sse2']	2	2	jsimd_h2v1_downsample	call site: 00000	/src/libjpeg-turbo.main/simd/x86_64/jsimd.c:367
0	47	1 : View List ['init_simd']	4	51	jsimd_h2v1_downsample	call site: 00000	/src/libjpeg-turbo.main/simd/x86_64/jsimd.c:364
0	47	1 : View List ['init_simd']	0	47	jsimd_rgb_ycc_convert	call site: 00000	/src/libjpeg-turbo.main/simd/x86_64/jsimd.c:148
0	0	None	327	725	parse_switches(jpeg_compress_struct*,int,char**,int,int)	call site: 00000	/src/libjpeg-turbo.main/fuzz/../cjpeg.c:343
0	0	None	327	725	parse_switches(jpeg_compress_struct*,int,char**,int,int)	call site: 00000	/src/libjpeg-turbo.main/fuzz/../cjpeg.c:381
0	0	None	327	725	parse_switches(jpeg_compress_struct*,int,char**,int,int)	call site: 00000	/src/libjpeg-turbo.main/fuzz/../cjpeg.c:445
0	0	None	327	725	parse_switches(jpeg_compress_struct*,int,char**,int,int)	call site: 00000	/src/libjpeg-turbo.main/fuzz/../cjpeg.c:480
0	0	None	327	725	parse_switches(jpeg_compress_struct*,int,char**,int,int)	call site: 00000	/src/libjpeg-turbo.main/fuzz/../cjpeg.c:488
0	0	None	327	725	parse_switches(jpeg_compress_struct*,int,char**,int,int)	call site: 00000	/src/libjpeg-turbo.main/fuzz/../cjpeg.c:507
0	0	None	327	725	parse_switches(jpeg_compress_struct*,int,char**,int,int)	call site: 00000	/src/libjpeg-turbo.main/fuzz/../cjpeg.c:519

Runtime coverage analysis

Covered functions

190

Functions that are reachable but not covered

130

Reachable functions

319

Percentage of reachable functions covered

59.25%

NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
libjpeg-turbo.2.1.x/fuzz/cjpeg.cc	1
libjpeg-turbo.2.1.x/fuzz/../cjpeg.c	7
libjpeg-turbo.2.1.x/jerror.c	6
libjpeg-turbo.2.1.x/jcomapi.c	4
libjpeg-turbo.2.1.x/jcapimin.c	7
libjpeg-turbo.2.1.x/jmemmgr.c	16
libjpeg-turbo.2.1.x/jmemnobs.c	8
libjpeg-turbo.2.1.x/jutils.c	4
libjpeg-turbo.2.1.x/jcparam.c	11
libjpeg-turbo.2.1.x/jstdhuff.c	2
libjpeg-turbo.2.1.x/cdjpeg.c	6
libjpeg-turbo.2.1.x/rdswitch.c	9
libjpeg-turbo.2.1.x/rdtarga.c	13
libjpeg-turbo.2.1.x/rdbmp.c	9
libjpeg-turbo.2.1.x/rdgif.c	15
libjpeg-turbo.2.1.x/rdppm.c	18
libjpeg-turbo.2.1.x/jdatadst.c	8
libjpeg-turbo.2.1.x/jcapistd.c	2
libjpeg-turbo.2.1.x/jcinit.c	1
libjpeg-turbo.2.1.x/jcmaster.c	8
libjpeg-turbo.2.1.x/jccolor.c	9
libjpeg-turbo.2.1.x/simd/x86_64/jsimd.c	25
libjpeg-turbo.2.1.x/jcsample.c	10
libjpeg-turbo.2.1.x/jcprepct.c	6
libjpeg-turbo.2.1.x/jcdctmgr.c	10
libjpeg-turbo.2.1.x/jfdctint.c	1
libjpeg-turbo.2.1.x/jfdctfst.c	1
libjpeg-turbo.2.1.x/jfdctflt.c	1
libjpeg-turbo.2.1.x/jcarith.c	11
libjpeg-turbo.2.1.x/jcphuff.c	17
libjpeg-turbo.2.1.x/jchuff.c	14
libjpeg-turbo.2.1.x/jccoefct.c	6
libjpeg-turbo.2.1.x/jcmainct.c	2
libjpeg-turbo.2.1.x/jcmarker.c	19
libjpeg-turbo.2.1.x/jcicc.c	1

Fuzzer: compress_fuzzer_2_0_x

Call tree

The calltree shows the control flow of the fuzzer. This is overlaid with coverage information to display how much of the potential code a fuzzer can reach is in fact covered at runtime. In the following there is a link to a detailed calltree visualisation as well as a bitmap showing a high-level view of the calltree. For further information about these topics please see the glossary for full calltree and calltree overview

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	242	36.3%
gold	[1:9]	9	1.35%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	415	62.3%
All colors	666	100

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
2	2	1 : View List ['out_of_memory']	2	2	alloc_large	call site: 00039	/src/libjpeg-turbo.main/jmemmgr.c:394
0	0	None	24	24	init_simd	call site: 00278	/src/libjpeg-turbo.main/simd/x86_64/jsimd.c:56
0	0	None	6	10	alloc_large	call site: 00035	/src/libjpeg-turbo.main/jmemmgr.c:375
0	0	None	4	6	alloc_large	call site: 00037	/src/libjpeg-turbo.main/jmemmgr.c:383
0	0	None	2	4	alloc_large	call site: 00038	/src/libjpeg-turbo.main/jmemmgr.c:388
0	0	None	0	106	jinit_color_converter	call site: 00272	/src/libjpeg-turbo.main/jccolor.c:568
0	0	None	0	102	jinit_downsampler	call site: 00310	/src/libjpeg-turbo.main/jcsample.c:511
0	0	None	0	24	start_pass_fdctmgr	call site: 00331	/src/libjpeg-turbo.main/jcdctmgr.c:248
0	0	None	0	0	jinit_color_converter	call site: 00290	/src/libjpeg-turbo.main/jccolor.c:662
0	0	None	0	0	compute_reciprocal	call site: 00332	/src/libjpeg-turbo.main/jcdctmgr.c:179
0	0	None	0	0	flss	call site: 00333	/src/libjpeg-turbo.main/jcdctmgr.c:89
0	0	None	0	0	validate_script	call site: 00270	/src/libjpeg-turbo.main/jcmaster.c:224

Runtime coverage analysis

Covered functions

188

Functions that are reachable but not covered

100

Reachable functions

282

Percentage of reachable functions covered

64.54%

NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
libjpeg-turbo.2.0.x/fuzz/compress.cc	1
libjpeg-turbo.2.0.x/turbojpeg.c	11
libjpeg-turbo.2.0.x/jerror.c	6
libjpeg-turbo.2.0.x/jcomapi.c	4
libjpeg-turbo.2.0.x/jcapimin.c	5
libjpeg-turbo.2.0.x/jmemmgr.c	16
libjpeg-turbo.2.0.x/jmemnobs.c	8
libjpeg-turbo.2.0.x/jutils.c	4
libjpeg-turbo.2.0.x/jdatadst-tj.c	4
libjpeg-turbo.2.0.x/rdbmp.c	9
libjpeg-turbo.2.0.x/rdppm.c	18
libjpeg-turbo.2.0.x/jdapimin.c	1
libjpeg-turbo.2.0.x/jcparam.c	11
libjpeg-turbo.2.0.x/jstdhuff.c	2
libjpeg-turbo.2.0.x/jcapistd.c	2
libjpeg-turbo.2.0.x/jcinit.c	1
libjpeg-turbo.2.0.x/jcmaster.c	8
libjpeg-turbo.2.0.x/jccolor.c	9
libjpeg-turbo.2.0.x/simd/x86_64/jsimd.c	25
libjpeg-turbo.2.0.x/jcsample.c	10
libjpeg-turbo.2.0.x/jcprepct.c	6
libjpeg-turbo.2.0.x/jcdctmgr.c	10
libjpeg-turbo.2.0.x/jfdctint.c	1
libjpeg-turbo.2.0.x/jfdctfst.c	1
libjpeg-turbo.2.0.x/jfdctflt.c	1
libjpeg-turbo.2.0.x/jcarith.c	11
libjpeg-turbo.2.0.x/jcphuff.c	17
libjpeg-turbo.2.0.x/jchuff.c	14
libjpeg-turbo.2.0.x/jccoefct.c	6
libjpeg-turbo.2.0.x/jcmainct.c	2
libjpeg-turbo.2.0.x/jcmarker.c	19

Fuzzer: transform_fuzzer_2_0_x

Call tree

The calltree shows the control flow of the fuzzer. This is overlaid with coverage information to display how much of the potential code a fuzzer can reach is in fact covered at runtime. In the following there is a link to a detailed calltree visualisation as well as a bitmap showing a high-level view of the calltree. For further information about these topics please see the glossary for full calltree and calltree overview

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	239	35.3%
gold	[1:9]	12	1.77%
yellow	[10:29]	2	0.29%
greenyellow	[30:49]	2	0.29%
lawngreen	50+	421	62.2%
All colors	676	100

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
169	169	1 : View List ['jinit_arith_encoder']	169	324	transencode_master_selection	call site: 00350	/src/libjpeg-turbo.2.1.x/jctrans.c:178
2	2	1 : View List ['out_of_memory']	2	2	alloc_large	call site: 00037	/src/libjpeg-turbo.main/jmemmgr.c:394
0	0	None	24	24	init_simd	call site: 00481	/src/libjpeg-turbo.main/simd/x86_64/jsimd.c:56
0	0	None	6	10	alloc_large	call site: 00033	/src/libjpeg-turbo.main/jmemmgr.c:375
0	0	None	4	6	alloc_large	call site: 00035	/src/libjpeg-turbo.main/jmemmgr.c:383
0	0	None	2	4	alloc_large	call site: 00036	/src/libjpeg-turbo.main/jmemmgr.c:388
0	0	None	0	1723	tjTransform	call site: 00645	/src/libjpeg-turbo.2.1.x/turbojpeg.c:2056
0	0	None	0	53	jpeg_copy_critical_parameters	call site: 00307	/src/libjpeg-turbo.2.1.x/jctrans.c:76
0	0	None	0	2	get_dqt	call site: 00103	/src/libjpeg-turbo.2.1.x/jdmarker.c:542
0	0	None	0	0	validate_script	call site: 00368	/src/libjpeg-turbo.main/jcmaster.c:224
0	0	None	0	0	jpeg_abort	call site: 00147	/src/libjpeg-turbo.main/jcomapi.c:37
0	0	None	0	0	jpeg_add_quant_table	call site: 00313	/src/libjpeg-turbo.main/jcparam.c:58

Runtime coverage analysis

Covered functions

193

Functions that are reachable but not covered

61

Reachable functions

251

Percentage of reachable functions covered

75.7%

NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
libjpeg-turbo.2.0.x/fuzz/transform.cc	1
libjpeg-turbo.2.0.x/turbojpeg.c	12
libjpeg-turbo.2.0.x/jerror.c	6
libjpeg-turbo.2.0.x/jcomapi.c	4
libjpeg-turbo.2.0.x/jcapimin.c	6
libjpeg-turbo.2.0.x/jmemmgr.c	16
libjpeg-turbo.2.0.x/jmemnobs.c	8
libjpeg-turbo.2.0.x/jutils.c	4
libjpeg-turbo.2.0.x/jdatadst-tj.c	4
libjpeg-turbo.2.0.x/jdapimin.c	7
libjpeg-turbo.2.0.x/jdmarker.c	19
libjpeg-turbo.2.0.x/jdinput.c	8
libjpeg-turbo.2.0.x/jdatasrc-tj.c	5
libjpeg-turbo.2.0.x/transupp.c	19
libjpeg-turbo.2.0.x/jdtrans.c	2
libjpeg-turbo.2.0.x/jdarith.c	10
libjpeg-turbo.2.0.x/jdphuff.c	7
libjpeg-turbo.2.0.x/jdhuff.c	8
libjpeg-turbo.2.0.x/jstdhuff.c	2
libjpeg-turbo.2.0.x/jdcoefct.c	9
libjpeg-turbo.2.0.x/jdcoefct.h	1
libjpeg-turbo.2.0.x/jctrans.c	7
libjpeg-turbo.2.0.x/jcparam.c	11
libjpeg-turbo.2.0.x/jcmaster.c	8
libjpeg-turbo.2.0.x/jcarith.c	11
libjpeg-turbo.2.0.x/jcphuff.c	17
libjpeg-turbo.2.0.x/simd/x86_64/jsimd.c	7
libjpeg-turbo.2.0.x/jchuff.c	14
libjpeg-turbo.2.0.x/jcmarker.c	19

Fuzzer: compress_yuv_fuzzer_2_0_x

Call tree

The calltree shows the control flow of the fuzzer. This is overlaid with coverage information to display how much of the potential code a fuzzer can reach is in fact covered at runtime. In the following there is a link to a detailed calltree visualisation as well as a bitmap showing a high-level view of the calltree. For further information about these topics please see the glossary for full calltree and calltree overview

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	210	29.0%
gold	[1:9]	9	1.24%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	503	69.6%
All colors	722	100

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
2	2	1 : View List ['out_of_memory']	2	2	alloc_large	call site: 00041	/src/libjpeg-turbo.main/jmemmgr.c:394
0	10	1 : View List ['emit_jfif_app0']	16	26	write_file_header	call site: 00616	/src/libjpeg-turbo.main/jcmarker.c:484
0	0	None	24	24	init_simd	call site: 00295	/src/libjpeg-turbo.main/simd/x86_64/jsimd.c:56
0	0	None	6	10	alloc_large	call site: 00037	/src/libjpeg-turbo.main/jmemmgr.c:375
0	0	None	4	6	alloc_large	call site: 00039	/src/libjpeg-turbo.main/jmemmgr.c:383
0	0	None	2	4	alloc_large	call site: 00040	/src/libjpeg-turbo.main/jmemmgr.c:388
0	0	None	0	494	encode_mcu	call site: 00505	/src/libjpeg-turbo.main/jcarith.c:753
0	0	1 : View List ['emit_restart.644']	0	312	encode_mcu_AC_first	call site: 00469	/src/libjpeg-turbo.main/jcarith.c:468
0	0	1 : View List ['emit_restart.644']	0	234	encode_mcu_AC_refine	call site: 00486	/src/libjpeg-turbo.main/jcarith.c:602
0	0	1 : View List ['emit_restart.644']	0	208	encode_mcu_DC_first	call site: 00435	/src/libjpeg-turbo.main/jcarith.c:378
0	0	None	0	208	encode_mcu_DC_first	call site: 00467	/src/libjpeg-turbo.main/jcarith.c:438
0	0	None	0	106	jinit_color_converter	call site: 00289	/src/libjpeg-turbo.main/jccolor.c:568

Runtime coverage analysis

Covered functions

187

Functions that are reachable but not covered

107

Reachable functions

288

Percentage of reachable functions covered

62.85%

NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
libjpeg-turbo.2.0.x/fuzz/compress_yuv.cc	1
libjpeg-turbo.2.0.x/turbojpeg.c	17
libjpeg-turbo.2.0.x/jerror.c	6
libjpeg-turbo.2.0.x/jcomapi.c	4
libjpeg-turbo.2.0.x/jcapimin.c	5
libjpeg-turbo.2.0.x/jmemmgr.c	16
libjpeg-turbo.2.0.x/jmemnobs.c	8
libjpeg-turbo.2.0.x/jutils.c	4
libjpeg-turbo.2.0.x/jdatadst-tj.c	4
libjpeg-turbo.2.0.x/rdbmp.c	9
libjpeg-turbo.2.0.x/rdppm.c	18
libjpeg-turbo.2.0.x/jdapimin.c	1
libjpeg-turbo.2.0.x/jcparam.c	11
libjpeg-turbo.2.0.x/jstdhuff.c	2
libjpeg-turbo.2.0.x/jcmaster.c	8
libjpeg-turbo.2.0.x/jccolor.c	9
libjpeg-turbo.2.0.x/simd/x86_64/jsimd.c	25
libjpeg-turbo.2.0.x/jcsample.c	10
libjpeg-turbo.2.0.x/jcapistd.c	2
libjpeg-turbo.2.0.x/jcinit.c	1
libjpeg-turbo.2.0.x/jcprepct.c	6
libjpeg-turbo.2.0.x/jcdctmgr.c	10
libjpeg-turbo.2.0.x/jfdctint.c	1
libjpeg-turbo.2.0.x/jfdctfst.c	1
libjpeg-turbo.2.0.x/jfdctflt.c	1
libjpeg-turbo.2.0.x/jcarith.c	11
libjpeg-turbo.2.0.x/jcphuff.c	17
libjpeg-turbo.2.0.x/jchuff.c	14
libjpeg-turbo.2.0.x/jccoefct.c	6
libjpeg-turbo.2.0.x/jcmainct.c	2
libjpeg-turbo.2.0.x/jcmarker.c	19

Fuzzer: decompress_yuv_fuzzer_2_1_x

Call tree

The calltree shows the control flow of the fuzzer. This is overlaid with coverage information to display how much of the potential code a fuzzer can reach is in fact covered at runtime. In the following there is a link to a detailed calltree visualisation as well as a bitmap showing a high-level view of the calltree. For further information about these topics please see the glossary for full calltree and calltree overview

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	180	34.5%
gold	[1:9]	8	1.53%
yellow	[10:29]	6	1.15%
greenyellow	[30:49]	4	0.76%
lawngreen	50+	323	61.9%
All colors	521	100

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
218	218	2 : View List ['jinit_2pass_quantizer', 'jinit_1pass_quantizer']	218	1530	master_selection	call site: 00232	/src/libjpeg-turbo.2.1.x/jdmaster.c:479
3	3	1 : View List ['alloc_funny_pointers']	3	3	jinit_d_main_controller	call site: 00471	/src/libjpeg-turbo.2.1.x/jdmainct.c:442
2	2	1 : View List ['jsimd_h2v2_upsample_sse2']	2	2	jsimd_h2v2_upsample	call site: 00000	/src/libjpeg-turbo.main/simd/x86_64/jsimd.c:424
2	2	1 : View List ['jsimd_h2v1_upsample_sse2']	2	2	jsimd_h2v1_upsample	call site: 00000	/src/libjpeg-turbo.main/simd/x86_64/jsimd.c:439
2	2	1 : View List ['jsimd_idct_islow_sse2']	2	2	jsimd_idct_islow	call site: 00000	/src/libjpeg-turbo.main/simd/x86_64/jsimd.c:1011
0	47	1 : View List ['init_simd']	4	51	jsimd_h2v2_upsample	call site: 00000	/src/libjpeg-turbo.main/simd/x86_64/jsimd.c:421
0	47	1 : View List ['init_simd']	4	51	jsimd_h2v1_upsample	call site: 00000	/src/libjpeg-turbo.main/simd/x86_64/jsimd.c:436
0	47	1 : View List ['init_simd']	4	51	jsimd_idct_islow	call site: 00000	/src/libjpeg-turbo.main/simd/x86_64/jsimd.c:1008
0	47	1 : View List ['init_simd']	0	47	jsimd_ycc_rgb_convert	call site: 00000	/src/libjpeg-turbo.main/simd/x86_64/jsimd.c:252
0	47	1 : View List ['init_simd']	0	47	jsimd_h2v2_merged_upsample	call site: 00000	/src/libjpeg-turbo.main/simd/x86_64/jsimd.c:572
0	47	1 : View List ['init_simd']	0	47	jsimd_h2v1_merged_upsample	call site: 00000	/src/libjpeg-turbo.main/simd/x86_64/jsimd.c:623
0	2	1 : View List ['jcopy_sample_rows']	0	2	merged_2v_upsample	call site: 00282	/src/libjpeg-turbo.2.1.x/jdmerge.c:232

Runtime coverage analysis

Covered functions

174

Functions that are reachable but not covered

95

Reachable functions

251

Percentage of reachable functions covered

62.15%

NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
libjpeg-turbo.2.1.x/fuzz/decompress_yuv.cc	1
libjpeg-turbo.2.1.x/turbojpeg.c	19
libjpeg-turbo.2.1.x/jerror.c	6
libjpeg-turbo.2.1.x/jcomapi.c	4
libjpeg-turbo.2.1.x/jdapimin.c	7
libjpeg-turbo.2.1.x/jmemmgr.c	16
libjpeg-turbo.2.1.x/jmemnobs.c	8
libjpeg-turbo.2.1.x/jutils.c	5
libjpeg-turbo.2.1.x/jdmarker.c	17
libjpeg-turbo.2.1.x/jdinput.c	8
libjpeg-turbo.2.1.x/jdatasrc-tj.c	5
libjpeg-turbo.2.1.x/jdmaster.c	8
libjpeg-turbo.2.1.x/jdapistd.c	3
libjpeg-turbo.2.1.x/jquant1.c	17
libjpeg-turbo.2.1.x/jquant2.c	18
libjpeg-turbo.2.1.x/jdmerge.c	11
libjpeg-turbo.2.1.x/simd/x86_64/jsimd.c	14
libjpeg-turbo.2.1.x/jdcolor.c	17
libjpeg-turbo.2.1.x/jdsample.c	11
libjpeg-turbo.2.1.x/jdpostct.c	5
libjpeg-turbo.2.1.x/jddctmgr.c	2
libjpeg-turbo.2.1.x/jdarith.c	10
libjpeg-turbo.2.1.x/jdphuff.c	7
libjpeg-turbo.2.1.x/jdhuff.c	8
libjpeg-turbo.2.1.x/jstdhuff.c	2
libjpeg-turbo.2.1.x/jdcoefct.c	9
libjpeg-turbo.2.1.x/jdcoefct.h	1
libjpeg-turbo.2.1.x/jdmainct.c	8
libjpeg-turbo.2.1.x/jdmainct.h	1
libjpeg-turbo.2.1.x/jcapimin.c	1

Fuzzer: compress_fuzzer_2_1_x

Call tree

The calltree shows the control flow of the fuzzer. This is overlaid with coverage information to display how much of the potential code a fuzzer can reach is in fact covered at runtime. In the following there is a link to a detailed calltree visualisation as well as a bitmap showing a high-level view of the calltree. For further information about these topics please see the glossary for full calltree and calltree overview

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	241	36.5%
gold	[1:9]	5	0.75%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	413	62.6%
All colors	659	100

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
7	7	1 : View List ['jpeg_abort_compress']	7	7	tjCompress2	call site: 00650	/src/libjpeg-turbo.2.1.x/turbojpeg.c:760
4	4	2 : View List ['__errno_location', 'strerror']	6	23	tjLoadImage	call site: 00088	/src/libjpeg-turbo.2.1.x/turbojpeg.c:2152
2	2	1 : View List ['jsimd_h2v2_downsample_sse2']	2	2	jsimd_h2v2_downsample	call site: 00000	/src/libjpeg-turbo.main/simd/x86_64/jsimd.c:348
2	2	1 : View List ['jsimd_h2v1_downsample_sse2']	2	2	jsimd_h2v1_downsample	call site: 00000	/src/libjpeg-turbo.main/simd/x86_64/jsimd.c:367
2	2	1 : View List ['jsimd_convsamp_sse2']	2	2	jsimd_convsamp	call site: 00352	/src/libjpeg-turbo.main/simd/x86_64/jsimd.c:718
2	2	1 : View List ['jsimd_fdct_islow_sse2']	2	2	jsimd_fdct_islow	call site: 00333	/src/libjpeg-turbo.main/simd/x86_64/jsimd.c:790
2	2	1 : View List ['jsimd_quantize_sse2']	2	2	jsimd_quantize	call site: 00359	/src/libjpeg-turbo.main/simd/x86_64/jsimd.c:854
0	47	1 : View List ['init_simd']	4	51	jsimd_h2v2_downsample	call site: 00000	/src/libjpeg-turbo.main/simd/x86_64/jsimd.c:345
0	47	1 : View List ['init_simd']	4	51	jsimd_h2v1_downsample	call site: 00000	/src/libjpeg-turbo.main/simd/x86_64/jsimd.c:364
0	47	1 : View List ['init_simd']	4	51	jsimd_convsamp	call site: 00351	/src/libjpeg-turbo.main/simd/x86_64/jsimd.c:715
0	47	1 : View List ['init_simd']	4	51	jsimd_fdct_islow	call site: 00332	/src/libjpeg-turbo.main/simd/x86_64/jsimd.c:787
0	47	1 : View List ['init_simd']	4	51	jsimd_quantize	call site: 00358	/src/libjpeg-turbo.main/simd/x86_64/jsimd.c:851

Runtime coverage analysis

Covered functions

189

Functions that are reachable but not covered

100

Reachable functions

282

Percentage of reachable functions covered

64.54%

NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
libjpeg-turbo.2.1.x/fuzz/compress.cc	1
libjpeg-turbo.2.1.x/turbojpeg.c	11
libjpeg-turbo.2.1.x/jerror.c	6
libjpeg-turbo.2.1.x/jcomapi.c	4
libjpeg-turbo.2.1.x/jcapimin.c	5
libjpeg-turbo.2.1.x/jmemmgr.c	16
libjpeg-turbo.2.1.x/jmemnobs.c	8
libjpeg-turbo.2.1.x/jutils.c	4
libjpeg-turbo.2.1.x/jdatadst-tj.c	4
libjpeg-turbo.2.1.x/rdbmp.c	9
libjpeg-turbo.2.1.x/rdppm.c	18
libjpeg-turbo.2.1.x/jdapimin.c	1
libjpeg-turbo.2.1.x/jcparam.c	11
libjpeg-turbo.2.1.x/jstdhuff.c	2
libjpeg-turbo.2.1.x/jcapistd.c	2
libjpeg-turbo.2.1.x/jcinit.c	1
libjpeg-turbo.2.1.x/jcmaster.c	8
libjpeg-turbo.2.1.x/jccolor.c	9
libjpeg-turbo.2.1.x/simd/x86_64/jsimd.c	25
libjpeg-turbo.2.1.x/jcsample.c	10
libjpeg-turbo.2.1.x/jcprepct.c	6
libjpeg-turbo.2.1.x/jcdctmgr.c	10
libjpeg-turbo.2.1.x/jfdctint.c	1
libjpeg-turbo.2.1.x/jfdctfst.c	1
libjpeg-turbo.2.1.x/jfdctflt.c	1
libjpeg-turbo.2.1.x/jcarith.c	11
libjpeg-turbo.2.1.x/jcphuff.c	17
libjpeg-turbo.2.1.x/jchuff.c	14
libjpeg-turbo.2.1.x/jccoefct.c	6
libjpeg-turbo.2.1.x/jcmainct.c	2
libjpeg-turbo.2.1.x/jcmarker.c	19

Fuzzer: transform_fuzzer_2_1_x

Call tree

The calltree shows the control flow of the fuzzer. This is overlaid with coverage information to display how much of the potential code a fuzzer can reach is in fact covered at runtime. In the following there is a link to a detailed calltree visualisation as well as a bitmap showing a high-level view of the calltree. For further information about these topics please see the glossary for full calltree and calltree overview

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	257	38.2%
gold	[1:9]	10	1.48%
yellow	[10:29]	2	0.29%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	403	59.9%
All colors	672	100

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
169	169	1 : View List ['jinit_arith_encoder']	169	324	transencode_master_selection	call site: 00339	/src/libjpeg-turbo.2.1.x/jctrans.c:178
50	50	3 : View List ['do_crop_ext_zero', 'do_crop_ext_flat', 'do_crop_ext_reflect']	50	50	jtransform_execute_transform	call site: 00629	/src/libjpeg-turbo.2.1.x/transupp.c:2169
38	38	1 : View List ['adjust_exif_parameters']	38	38	jtransform_adjust_parameters	call site: 00330	/src/libjpeg-turbo.2.1.x/transupp.c:2132
8	8	1 : View List ['jtransform_perfect_transform']	20	40	jtransform_request_workspace	call site: 00185	/src/libjpeg-turbo.2.1.x/transupp.c:1523
0	0	None	12	32	jtransform_request_workspace	call site: 00187	/src/libjpeg-turbo.2.1.x/transupp.c:1583
0	0	None	12	32	jtransform_request_workspace	call site: 00187	/src/libjpeg-turbo.2.1.x/transupp.c:1585
0	0	None	12	32	jtransform_request_workspace	call site: 00187	/src/libjpeg-turbo.2.1.x/transupp.c:1587
0	0	None	12	32	jtransform_request_workspace	call site: 00187	/src/libjpeg-turbo.2.1.x/transupp.c:1606
0	0	None	12	32	jtransform_request_workspace	call site: 00187	/src/libjpeg-turbo.2.1.x/transupp.c:1628
0	0	None	12	32	jtransform_request_workspace	call site: 00187	/src/libjpeg-turbo.2.1.x/transupp.c:1634
0	0	None	12	28	jtransform_request_workspace	call site: 00189	/src/libjpeg-turbo.2.1.x/transupp.c:1697
0	0	None	12	28	jtransform_request_workspace	call site: 00189	/src/libjpeg-turbo.2.1.x/transupp.c:1703

Runtime coverage analysis

Covered functions

194

Functions that are reachable but not covered

74

Reachable functions

264

Percentage of reachable functions covered

71.97%

NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
libjpeg-turbo.2.1.x/fuzz/transform.cc	1
libjpeg-turbo.2.1.x/turbojpeg.c	12
libjpeg-turbo.2.1.x/jerror.c	6
libjpeg-turbo.2.1.x/jcomapi.c	4
libjpeg-turbo.2.1.x/jcapimin.c	6
libjpeg-turbo.2.1.x/jmemmgr.c	16
libjpeg-turbo.2.1.x/jmemnobs.c	8
libjpeg-turbo.2.1.x/jutils.c	4
libjpeg-turbo.2.1.x/jdatadst-tj.c	4
libjpeg-turbo.2.1.x/jdapimin.c	7
libjpeg-turbo.2.1.x/jdmarker.c	19
libjpeg-turbo.2.1.x/jdinput.c	8
libjpeg-turbo.2.1.x/jdatasrc-tj.c	5
libjpeg-turbo.2.1.x/transupp.c	30
libjpeg-turbo.2.1.x/jdtrans.c	2
libjpeg-turbo.2.1.x/jdarith.c	10
libjpeg-turbo.2.1.x/jdphuff.c	7
libjpeg-turbo.2.1.x/jdhuff.c	8
libjpeg-turbo.2.1.x/jstdhuff.c	2
libjpeg-turbo.2.1.x/jdcoefct.c	9
libjpeg-turbo.2.1.x/jdcoefct.h	1
libjpeg-turbo.2.1.x/jctrans.c	7
libjpeg-turbo.2.1.x/jcparam.c	7
libjpeg-turbo.2.1.x/jcmaster.c	8
libjpeg-turbo.2.1.x/jcarith.c	11
libjpeg-turbo.2.1.x/jcphuff.c	17
libjpeg-turbo.2.1.x/simd/x86_64/jsimd.c	7
libjpeg-turbo.2.1.x/jchuff.c	14
libjpeg-turbo.2.1.x/jcmarker.c	19

Fuzzer: compress_yuv_fuzzer_2_1_x

Call tree

The calltree shows the control flow of the fuzzer. This is overlaid with coverage information to display how much of the potential code a fuzzer can reach is in fact covered at runtime. In the following there is a link to a detailed calltree visualisation as well as a bitmap showing a high-level view of the calltree. For further information about these topics please see the glossary for full calltree and calltree overview

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	208	29.0%
gold	[1:9]	5	0.69%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	502	70.2%
All colors	715	100

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
4	4	2 : View List ['__errno_location', 'strerror']	6	23	tjLoadImage	call site: 00090	/src/libjpeg-turbo.2.1.x/turbojpeg.c:2152