High level conclusions

Fuzzer fuzzer_script_guess is blocked:

The runtime code coverage of fuzzer_script_guess covers 0.0% of its statically reachable code. This means there is some place that blocks the fuzzer to continue exploring more code at run time.

Fuzzer fuzzer_script_exr is blocked:

The runtime code coverage of fuzzer_script_exr covers 25.0% of its statically reachable code. This means there is some place that blocks the fuzzer to continue exploring more code at run time.

Fuzzers reach 0.522% of cyclomatic complexity.

Fuzzers reach 0.315% of all functions.

Reachability and coverage overview

Functions statically reachable by fuzzers

5 / 1586

Cyclomatic complexity statically reachable by fuzzers

11 / 2106

Runtime code coverage of functions

493 / 1586

Warning: The number of runtime covered functions are larger than the number of reachable functions. This means that Fuzz Introspector found there are more functions covered at runtime than what is considered reachable based on the static analysis. This is a limitation in the analysis as anything covered at runtime is by definition reachable by the fuzzers.
This is likely due to a limitation in the static analysis. In this case, the count of functions covered at runtime is the true value, which means this is what should be considered "achieved" by the fuzzer.

Use the project functions table below to query all functions that were not covered at runtime.

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	Runtime reached by Fuzzers	Combined 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: fuzzer_script_gif

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	1670	98.1%
gold	[1:9]	0	0.0%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	32	1.88%
All colors	1702	100

Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked	Calltree index	Parent function	Callsite	Largest blocked function
701	642	jpeg::JpegDecoder::new	call site: 00642	BmpDecoder::read_metadata
199	303	ImageReader::make_decoder	call site: 00303	tests::test_image_outside_image_no_wrap_around
184	1350	ImageReader::make_decoder	call site: 01350	HdrDecoder::with_strictness
156	146	ImageBuffer::inner_pixels_mut	call site: 00146	Orientation::locate_orientation_entry
146	1536	gcd	call site: 01536	Delay::closest_bounded_fraction
98	37	Limits::check_support	call site: 00037	ImageReader::make_decoder
66	503	Box::read_image	call site: 00503	TgaDecoder::expand_color_map
36	570	Limits::check_dimensions	call site: 00570
20	608	ImageReader::make_decoder	call site: 00608
18	18	ImageReader::set_format	call site: 00018	ImageDecoder::set_limits
17	1684	ImageReader::require_format	call site: 01684	ImageDecoder::set_limits
9	2	image::load_from_memory_with_format	call site: 00002

Runtime coverage analysis

Covered functions

176

Functions that are reachable but not covered

1

Reachable functions

2

Percentage of reachable functions covered

50.0%

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.

Warning: The number of covered functions are larger than the number of reachable functions. This means that there are more functions covered at runtime than are extracted using static analysis. This is likely a result of the static analysis component failing to extract the right call graph or the coverage runtime being compiled with sanitizers in code that the static analysis has not analysed. This can happen if lto/gold is not used in all places that coverage instrumentation is used.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
fuzz/fuzzers/fuzzer_script_gif.rs	2
src/images/dynimage.rs	2
src/hooks.rs	129
src/io/free_functions.rs	14
src/io/limits.rs	5
src/io/image_reader_type.rs	39
tests/limits_anim.rs	6
src/io/decoder.rs	10
src/images/flat.rs	2
src/codecs/tga/decoder.rs	15
src/animation.rs	18
src/metadata.rs	15
src/traits.rs	10
src/images/buffer.rs	14
src/images/buffer_par.rs	1
src/codecs/avif/encoder.rs	5
src/codecs/hdr/encoder.rs	2
src/color.rs	17
src/io/format.rs	2
src/codecs/farbfeld.rs	7
src/utils/mod.rs	4
src/imageops/fast_blur.rs	7
src/imageops/mod.rs	17
src/images/generic_image.rs	11
src/codecs/avif/decoder.rs	8
src/codecs/png.rs	21
src/codecs/tiff.rs	15
src/codecs/dds.rs	11
src/io.rs	10
src/codecs/hdr/decoder.rs	55
src/codecs/openexr.rs	15
src/codecs/bmp/decoder.rs	51
src/imageops/sample.rs	30
src/codecs/ico/decoder.rs	16
src/codecs/pnm/decoder.rs	11
src/codecs/gif.rs	3

Fuzzer: fuzzer_script_pnm

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	1619	95.1%
gold	[1:9]	12	0.70%
yellow	[10:29]	3	0.17%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	68	3.99%
All colors	1702	100

Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked	Calltree index	Parent function	Callsite	Largest blocked function
415	928	dds::DdsDecoder::new	call site: 00928	BmpDecoder::read_metadata
245	1344	ImageReader::make_decoder	call site: 01344	HdrDecoder::with_strictness
233	336	crate::utils::check_dimension_overflow	call site: 00336	tests::test_image_outside_image_no_wrap_around
202	625	zune_core::options::DecoderOptions::default	call site: 00625	Header::from_reader
162	140	ImageBuffer::image_buffer_len	call site: 00140	Orientation::locate_orientation_entry
96	39	crate::LimitSupport::default	call site: 00039	ImageReader::make_decoder
54	570	Limits::check_dimensions	call site: 00570
41	859	R::read_exact_vec	call site: 00859	Header::from_reader
30	303	ImageReader::make_decoder	call site: 00303	FarbfeldReader::new
18	18	ImageReader::set_format	call site: 00018	ImageDecoder::set_limits
18	1653	pnm::PnmDecoder::new	call site: 01653	FarbfeldReader::new
17	828	R::read_exact_vec	call site: 00828	ImageReader::into_dimensions

Runtime coverage analysis

Covered functions

186

Functions that are reachable but not covered

1

Reachable functions

2

Percentage of reachable functions covered

50.0%

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.

Warning: The number of covered functions are larger than the number of reachable functions. This means that there are more functions covered at runtime than are extracted using static analysis. This is likely a result of the static analysis component failing to extract the right call graph or the coverage runtime being compiled with sanitizers in code that the static analysis has not analysed. This can happen if lto/gold is not used in all places that coverage instrumentation is used.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
fuzz/fuzzers/fuzzer_script_pnm.rs	2
src/images/dynimage.rs	2
src/hooks.rs	129
src/io/free_functions.rs	14
src/io/limits.rs	5
src/io/image_reader_type.rs	39
tests/limits_anim.rs	6
src/io/decoder.rs	10
src/images/flat.rs	2
src/codecs/tga/decoder.rs	15
src/animation.rs	18
src/metadata.rs	15
src/traits.rs	10
src/images/buffer.rs	14
src/images/buffer_par.rs	1
src/codecs/avif/encoder.rs	5
src/codecs/hdr/encoder.rs	2
src/color.rs	17
src/io/format.rs	2
src/codecs/farbfeld.rs	7
src/utils/mod.rs	4
src/imageops/fast_blur.rs	7
src/imageops/mod.rs	17
src/images/generic_image.rs	11
src/codecs/avif/decoder.rs	8
src/codecs/png.rs	21
src/codecs/tiff.rs	15
src/codecs/dds.rs	11
src/io.rs	10
src/codecs/hdr/decoder.rs	55
src/codecs/openexr.rs	15
src/codecs/bmp/decoder.rs	51
src/imageops/sample.rs	30
src/codecs/ico/decoder.rs	16
src/codecs/pnm/decoder.rs	11
src/codecs/gif.rs	3

Fuzzer: fuzzer_script_webp

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	1669	98.0%
gold	[1:9]	0	0.0%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	33	1.93%
All colors	1702	100

Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked	Calltree index	Parent function	Callsite	Largest blocked function
688	655	ImageReader::make_decoder	call site: 00655	BmpDecoder::read_metadata
193	376	ImageDecoder::total_bytes	call site: 00376	tests::test_image_outside_image_no_wrap_around
180	1354	ImageReader::make_decoder	call site: 01354	HdrDecoder::with_strictness
162	140	ImageBuffer::image_buffer_len	call site: 00140	Orientation::locate_orientation_entry
147	1535	Ratio::new	call site: 01535	Delay::closest_bounded_fraction
95	40	ImageDecoder::set_limits	call site: 00040	ImageReader::make_decoder
83	570	Limits::check_dimensions	call site: 00570	TgaDecoder::expand_color_map
56	303	ImageReader::make_decoder	call site: 00303	FarbfeldReader::new
17	18	ImageReader::set_format	call site: 00018	ImageDecoder::set_limits
10	364	ImageDecoder::total_bytes	call site: 00364
9	2	image::load_from_memory_with_format	call site: 00002
8	1344	ImageReader::make_decoder	call site: 01344

Runtime coverage analysis

Covered functions

337

Functions that are reachable but not covered

1

Reachable functions

2

Percentage of reachable functions covered

50.0%

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.

Warning: The number of covered functions are larger than the number of reachable functions. This means that there are more functions covered at runtime than are extracted using static analysis. This is likely a result of the static analysis component failing to extract the right call graph or the coverage runtime being compiled with sanitizers in code that the static analysis has not analysed. This can happen if lto/gold is not used in all places that coverage instrumentation is used.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
fuzz/fuzzers/fuzzer_script_webp.rs	2
src/images/dynimage.rs	2
src/hooks.rs	129
src/io/free_functions.rs	14
src/io/limits.rs	5
src/io/image_reader_type.rs	39
tests/limits_anim.rs	6
src/io/decoder.rs	10
src/images/flat.rs	2
src/codecs/tga/decoder.rs	15
src/animation.rs	18
src/metadata.rs	15
src/traits.rs	10
src/images/buffer.rs	14
src/images/buffer_par.rs	1
src/codecs/avif/encoder.rs	5
src/codecs/hdr/encoder.rs	2
src/color.rs	17
src/io/format.rs	2
src/codecs/farbfeld.rs	7
src/utils/mod.rs	4
src/imageops/fast_blur.rs	7
src/imageops/mod.rs	17
src/images/generic_image.rs	11
src/codecs/avif/decoder.rs	8
src/codecs/png.rs	21
src/codecs/tiff.rs	15
src/codecs/dds.rs	11
src/io.rs	10
src/codecs/hdr/decoder.rs	55
src/codecs/openexr.rs	15
src/codecs/bmp/decoder.rs	51
src/imageops/sample.rs	30
src/codecs/ico/decoder.rs	16
src/codecs/pnm/decoder.rs	11
src/codecs/gif.rs	3

Fuzzer: fuzzer_script_bmp

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	1489	87.4%
gold	[1:9]	40	2.35%
yellow	[10:29]	17	0.99%
greenyellow	[30:49]	12	0.70%
lawngreen	50+	144	8.46%
All colors	1702	100

Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked	Calltree index	Parent function	Callsite	Largest blocked function
320	1362	ImageReader::make_decoder	call site: 01362	HdrDecoder::with_strictness
202	625	zune_core::options::DecoderOptions::default	call site: 00625	Header::from_reader
193	376	ImageDecoder::total_bytes	call site: 00376	tests::test_image_outside_image_no_wrap_around
162	140	ImageBuffer::image_buffer_len	call site: 00140	Orientation::locate_orientation_entry
120	1140	BmpDecoder::read_palette	call site: 01140	horizontal_sample
95	40	ImageDecoder::set_limits	call site: 00040	ImageReader::make_decoder
83	859	R::read_exact_vec	call site: 00859	Header::from_reader
60	1283	bmp::BmpDecoder::new	call site: 01283	ImageReader::make_decoder
56	303	ImageReader::make_decoder	call site: 00303	FarbfeldReader::new
54	570	Limits::check_dimensions	call site: 00570
22	985	check_for_overflow	call site: 00985	ColorMap::get
17	18	ImageReader::set_format	call site: 00018	ImageDecoder::set_limits

Runtime coverage analysis

Covered functions

119

Functions that are reachable but not covered

1

Reachable functions

2

Percentage of reachable functions covered

50.0%

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.

Warning: The number of covered functions are larger than the number of reachable functions. This means that there are more functions covered at runtime than are extracted using static analysis. This is likely a result of the static analysis component failing to extract the right call graph or the coverage runtime being compiled with sanitizers in code that the static analysis has not analysed. This can happen if lto/gold is not used in all places that coverage instrumentation is used.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
fuzz/fuzzers/fuzzer_script_bmp.rs	2
src/images/dynimage.rs	2
src/hooks.rs	129
src/io/free_functions.rs	14
src/io/limits.rs	5
src/io/image_reader_type.rs	39
tests/limits_anim.rs	6
src/io/decoder.rs	10
src/images/flat.rs	2
src/codecs/tga/decoder.rs	15
src/animation.rs	18
src/metadata.rs	15
src/traits.rs	10
src/images/buffer.rs	14
src/images/buffer_par.rs	1
src/codecs/avif/encoder.rs	5
src/codecs/hdr/encoder.rs	2
src/color.rs	17
src/io/format.rs	2
src/codecs/farbfeld.rs	7
src/utils/mod.rs	4
src/imageops/fast_blur.rs	7
src/imageops/mod.rs	17
src/images/generic_image.rs	11
src/codecs/avif/decoder.rs	8
src/codecs/png.rs	21
src/codecs/tiff.rs	15
src/codecs/dds.rs	11
src/io.rs	10
src/codecs/hdr/decoder.rs	55
src/codecs/openexr.rs	15
src/codecs/bmp/decoder.rs	51
src/imageops/sample.rs	30
src/codecs/ico/decoder.rs	16
src/codecs/pnm/decoder.rs	11
src/codecs/gif.rs	3

Fuzzer: fuzzer_script_png

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	1671	98.1%
gold	[1:9]	5	0.29%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	26	1.52%
All colors	1702	100

Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked	Calltree index	Parent function	Callsite	Largest blocked function
504	839	ColorType::channel_count	call site: 00839	BmpDecoder::read_metadata
334	1348	ImageReader::make_decoder	call site: 01348	HdrDecoder::with_strictness
260	570	Limits::check_dimensions	call site: 00570	Header::from_reader
175	376	ImageDecoder::total_bytes	call site: 00376	tests::test_image_outside_image_no_wrap_around
162	140	ImageBuffer::image_buffer_len	call site: 00140	Orientation::locate_orientation_entry
98	37	Limits::check_support	call site: 00037	ImageReader::make_decoder
56	303	ImageReader::make_decoder	call site: 00303	FarbfeldReader::new
18	18	ImageReader::set_format	call site: 00018	ImageDecoder::set_limits
17	1684	ImageReader::require_format	call site: 01684	ImageDecoder::set_limits
16	553	ImageReader::make_decoder	call site: 00553	Limits::check_dimensions
10	364	ImageDecoder::total_bytes	call site: 00364
9	2	image::load_from_memory_with_format	call site: 00002

Runtime coverage analysis

Covered functions

357

Functions that are reachable but not covered

1

Reachable functions

2

Percentage of reachable functions covered

50.0%

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.

Warning: The number of covered functions are larger than the number of reachable functions. This means that there are more functions covered at runtime than are extracted using static analysis. This is likely a result of the static analysis component failing to extract the right call graph or the coverage runtime being compiled with sanitizers in code that the static analysis has not analysed. This can happen if lto/gold is not used in all places that coverage instrumentation is used.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
fuzz/fuzzers/fuzzer_script_png.rs	2
src/images/dynimage.rs	2
src/hooks.rs	129
src/io/free_functions.rs	14
src/io/limits.rs	5
src/io/image_reader_type.rs	39
tests/limits_anim.rs	6
src/io/decoder.rs	10
src/images/flat.rs	2
src/codecs/tga/decoder.rs	15
src/animation.rs	18
src/metadata.rs	15
src/traits.rs	10
src/images/buffer.rs	14
src/images/buffer_par.rs	1
src/codecs/avif/encoder.rs	5
src/codecs/hdr/encoder.rs	2
src/color.rs	17
src/io/format.rs	2
src/codecs/farbfeld.rs	7
src/utils/mod.rs	4
src/imageops/fast_blur.rs	7
src/imageops/mod.rs	17
src/images/generic_image.rs	11
src/codecs/avif/decoder.rs	8
src/codecs/png.rs	21
src/codecs/tiff.rs	15
src/codecs/dds.rs	11
src/io.rs	10
src/codecs/hdr/decoder.rs	55
src/codecs/openexr.rs	15
src/codecs/bmp/decoder.rs	51
src/imageops/sample.rs	30
src/codecs/ico/decoder.rs	16
src/codecs/pnm/decoder.rs	11
src/codecs/gif.rs	3

Fuzzer: fuzzer_script_ico

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	1489	87.4%
gold	[1:9]	40	2.35%
yellow	[10:29]	15	0.88%
greenyellow	[30:49]	6	0.35%
lawngreen	50+	152	8.93%
All colors	1702	100

Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked	Calltree index	Parent function	Callsite	Largest blocked function
318	1364	ImageReader::make_decoder	call site: 01364	HdrDecoder::with_strictness
257	570	Limits::check_dimensions	call site: 00570	Header::from_reader
187	376	ImageDecoder::total_bytes	call site: 00376	tests::test_image_outside_image_no_wrap_around
162	140	ImageBuffer::image_buffer_len	call site: 00140	Orientation::locate_orientation_entry
120	1140	BmpDecoder::read_palette	call site: 01140	horizontal_sample
98	37	Limits::check_support	call site: 00037	ImageReader::make_decoder
87	859	R::read_exact_vec	call site: 00859	BmpDecoder::read_metadata
56	303	ImageReader::make_decoder	call site: 00303	FarbfeldReader::new
22	985	check_for_overflow	call site: 00985	ColorMap::get
21	1285	ImageReader::make_decoder	call site: 01285	read_entries
18	18	ImageReader::set_format	call site: 00018	ImageDecoder::set_limits
18	1344	ImageReader::make_decoder	call site: 01344

Runtime coverage analysis

Covered functions

369

Functions that are reachable but not covered

1

Reachable functions

2

Percentage of reachable functions covered

50.0%

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.

Warning: The number of covered functions are larger than the number of reachable functions. This means that there are more functions covered at runtime than are extracted using static analysis. This is likely a result of the static analysis component failing to extract the right call graph or the coverage runtime being compiled with sanitizers in code that the static analysis has not analysed. This can happen if lto/gold is not used in all places that coverage instrumentation is used.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
fuzz/fuzzers/fuzzer_script_ico.rs	2
src/images/dynimage.rs	2
src/hooks.rs	129
src/io/free_functions.rs	14
src/io/limits.rs	5
src/io/image_reader_type.rs	39
tests/limits_anim.rs	6
src/io/decoder.rs	10
src/images/flat.rs	2
src/codecs/tga/decoder.rs	15
src/animation.rs	18
src/metadata.rs	15
src/traits.rs	10
src/images/buffer.rs	14
src/images/buffer_par.rs	1
src/codecs/avif/encoder.rs	5
src/codecs/hdr/encoder.rs	2
src/color.rs	17
src/io/format.rs	2
src/codecs/farbfeld.rs	7
src/utils/mod.rs	4
src/imageops/fast_blur.rs	7
src/imageops/mod.rs	17
src/images/generic_image.rs	11
src/codecs/avif/decoder.rs	8
src/codecs/png.rs	21
src/codecs/tiff.rs	15
src/codecs/dds.rs	11
src/io.rs	10
src/codecs/hdr/decoder.rs	55
src/codecs/openexr.rs	15
src/codecs/bmp/decoder.rs	51
src/imageops/sample.rs	30
src/codecs/ico/decoder.rs	16
src/codecs/pnm/decoder.rs	11
src/codecs/gif.rs	3

Fuzzer: roundtrip_webp

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	1707	97.5%
gold	[1:9]	0	0.0%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	42	2.40%
All colors	1749	100

Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked	Calltree index	Parent function	Callsite	Largest blocked function
679	634	ImageReader::make_decoder	call site: 00634	BmpDecoder::read_metadata
180	1324	ImageReader::make_decoder	call site: 01324	HdrDecoder::with_strictness
178	350	ImageDecoder::total_bytes	call site: 00350	tests::test_image_outside_image_no_wrap_around
147	1505	Ratio::new	call site: 01505	Delay::closest_bounded_fraction
124	146	ImageBuffer::inner_pixels	call site: 00146	Orientation::locate_orientation_entry
106	0	EP	call site: 00000	ImageReader::make_decoder
86	546	Limits::check_dimensions	call site: 00546	TgaDecoder::expand_color_map
56	271	ImageReader::make_decoder	call site: 00271	FarbfeldReader::new
33	111	ImageBuffer::image_buffer_len	call site: 00111	ImageReader::into_dimensions
20	1698	ImageBuffer::from_raw	call site: 01698	Header::write_to
19	1664	ImageDecoder::set_limits	call site: 01664	TgaDecoder::expand_color_map
19	1729	ImageReader::set_format	call site: 01729	ImageDecoder::set_limits

Runtime coverage analysis

Covered functions

147

Functions that are reachable but not covered

7

Reachable functions

17

Percentage of reachable functions covered

58.82%

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.

Warning: The number of covered functions are larger than the number of reachable functions. This means that there are more functions covered at runtime than are extracted using static analysis. This is likely a result of the static analysis component failing to extract the right call graph or the coverage runtime being compiled with sanitizers in code that the static analysis has not analysed. This can happen if lto/gold is not used in all places that coverage instrumentation is used.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
fuzz/fuzzers/roundtrip_webp.rs	11
src/codecs/hdr/decoder.rs	55
src/color.rs	17
src/codecs/avif/encoder.rs	9
src/io/image_reader_type.rs	39
src/hooks.rs	129
src/images/flat.rs	2
src/codecs/tga/decoder.rs	15
src/animation.rs	18
src/metadata.rs	15
src/traits.rs	10
src/images/buffer.rs	16
src/images/buffer_par.rs	1
src/codecs/hdr/encoder.rs	2
src/io/format.rs	2
src/codecs/farbfeld.rs	7
src/utils/mod.rs	4
src/io/free_functions.rs	14
src/io/decoder.rs	10
src/imageops/fast_blur.rs	7
src/imageops/mod.rs	17
src/images/generic_image.rs	11
src/codecs/avif/decoder.rs	8
src/codecs/png.rs	21
src/io/limits.rs	5
src/codecs/tiff.rs	15
src/codecs/dds.rs	11
src/io.rs	10
src/codecs/openexr.rs	15
src/codecs/bmp/decoder.rs	51
src/imageops/sample.rs	30
src/codecs/ico/decoder.rs	16
src/codecs/pnm/decoder.rs	11
src/codecs/tga/header.rs	3
src/images/dynimage.rs	2
tests/limits_anim.rs	6
src/codecs/gif.rs	3

Fuzzer: fuzzer_script_tiff

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	1658	97.4%
gold	[1:9]	15	0.88%
yellow	[10:29]	5	0.29%
greenyellow	[30:49]	1	0.05%
lawngreen	50+	23	1.35%
All colors	1702	100

Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked	Calltree index	Parent function	Callsite	Largest blocked function
606	737	err_unknown_color_type	call site: 00737	BmpDecoder::read_metadata
326	1356	ImageReader::make_decoder	call site: 01356	HdrDecoder::with_strictness
266	303	ImageReader::make_decoder	call site: 00303	tests::test_image_outside_image_no_wrap_around
162	140	ImageBuffer::image_buffer_len	call site: 00140	Orientation::locate_orientation_entry
98	37	Limits::check_support	call site: 00037	ImageReader::make_decoder
91	570	Limits::check_dimensions	call site: 00570	TgaDecoder::expand_color_map
23	663	ImageReader::make_decoder	call site: 00663	FarbfeldDecoder::new
23	709	ImageError::from_tiff_decode	call site: 00709	TgaDecoder::expand_color_map
18	18	ImageReader::set_format	call site: 00018	ImageDecoder::set_limits
17	1684	ImageReader::require_format	call site: 01684	ImageDecoder::set_limits
10	1344	ImageReader::make_decoder	call site: 01344
9	2	image::load_from_memory_with_format	call site: 00002

Runtime coverage analysis

Covered functions

650

Functions that are reachable but not covered

1

Reachable functions

2

Percentage of reachable functions covered

50.0%

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.

Warning: The number of covered functions are larger than the number of reachable functions. This means that there are more functions covered at runtime than are extracted using static analysis. This is likely a result of the static analysis component failing to extract the right call graph or the coverage runtime being compiled with sanitizers in code that the static analysis has not analysed. This can happen if lto/gold is not used in all places that coverage instrumentation is used.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
fuzz/fuzzers/fuzzer_script_tiff.rs	2
src/images/dynimage.rs	2
src/hooks.rs	129
src/io/free_functions.rs	14
src/io/limits.rs	5
src/io/image_reader_type.rs	39
tests/limits_anim.rs	6
src/io/decoder.rs	10
src/images/flat.rs	2
src/codecs/tga/decoder.rs	15
src/animation.rs	18
src/metadata.rs	15
src/traits.rs	10
src/images/buffer.rs	14
src/images/buffer_par.rs	1
src/codecs/avif/encoder.rs	5
src/codecs/hdr/encoder.rs	2
src/color.rs	17
src/io/format.rs	2
src/codecs/farbfeld.rs	7
src/utils/mod.rs	4
src/imageops/fast_blur.rs	7
src/imageops/mod.rs	17
src/images/generic_image.rs	11
src/codecs/avif/decoder.rs	8
src/codecs/png.rs	21
src/codecs/tiff.rs	15
src/codecs/dds.rs	11
src/io.rs	10
src/codecs/hdr/decoder.rs	55
src/codecs/openexr.rs	15
src/codecs/bmp/decoder.rs	51
src/imageops/sample.rs	30
src/codecs/ico/decoder.rs	16
src/codecs/pnm/decoder.rs	11
src/codecs/gif.rs	3

Fuzzer: fuzzer_script_hdr

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	1509	88.6%
gold	[1:9]	23	1.35%
yellow	[10:29]	4	0.23%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	166	9.75%
All colors	1702	100

Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked	Calltree index	Parent function	Callsite	Largest blocked function
423	920	ExtendedColorType::color_type	call site: 00920	BmpDecoder::read_metadata
193	376	ImageDecoder::total_bytes	call site: 00376	tests::test_image_outside_image_no_wrap_around
184	625	zune_core::options::DecoderOptions::default	call site: 00625	Header::from_reader
162	140	ImageBuffer::image_buffer_len	call site: 00140	Orientation::locate_orientation_entry
125	1515	HdrDecoder::with_strictness	call site: 01515	Delay::closest_bounded_fraction
95	40	ImageDecoder::set_limits	call site: 00040	ImageReader::make_decoder
72	845	io::Result::len	call site: 00845	Header::from_reader
54	570	Limits::check_dimensions	call site: 00570
30	303	ImageReader::make_decoder	call site: 00303	FarbfeldReader::new
24	1643	utils::check_dimension_overflow	call site: 01643	FarbfeldReader::new
20	1344	ImageReader::make_decoder	call site: 01344
18	810	tga::TgaDecoder::new	call site: 00810	R::read_exact_vec

Runtime coverage analysis

Covered functions

87

Functions that are reachable but not covered

1

Reachable functions

2

Percentage of reachable functions covered

50.0%

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.

Warning: The number of covered functions are larger than the number of reachable functions. This means that there are more functions covered at runtime than are extracted using static analysis. This is likely a result of the static analysis component failing to extract the right call graph or the coverage runtime being compiled with sanitizers in code that the static analysis has not analysed. This can happen if lto/gold is not used in all places that coverage instrumentation is used.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
fuzz/fuzzers/fuzzer_script_hdr.rs	2
src/images/dynimage.rs	2
src/hooks.rs	129
src/io/free_functions.rs	14
src/io/limits.rs	5
src/io/image_reader_type.rs	39
tests/limits_anim.rs	6
src/io/decoder.rs	10
src/images/flat.rs	2
src/codecs/tga/decoder.rs	15
src/animation.rs	18
src/metadata.rs	15
src/traits.rs	10
src/images/buffer.rs	14
src/images/buffer_par.rs	1
src/codecs/avif/encoder.rs	5
src/codecs/hdr/encoder.rs	2
src/color.rs	17
src/io/format.rs	2
src/codecs/farbfeld.rs	7
src/utils/mod.rs	4
src/imageops/fast_blur.rs	7
src/imageops/mod.rs	17
src/images/generic_image.rs	11
src/codecs/avif/decoder.rs	8
src/codecs/png.rs	21
src/codecs/tiff.rs	15
src/codecs/dds.rs	11
src/io.rs	10
src/codecs/hdr/decoder.rs	55
src/codecs/openexr.rs	15
src/codecs/bmp/decoder.rs	51
src/imageops/sample.rs	30
src/codecs/ico/decoder.rs	16
src/codecs/pnm/decoder.rs	11
src/codecs/gif.rs	3

Fuzzer: fuzzer_script_exr

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	1316	74.3%
gold	[1:9]	78	4.40%
yellow	[10:29]	20	1.12%
greenyellow	[30:49]	10	0.56%
lawngreen	50+	346	19.5%
All colors	1770	100

Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked	Calltree index	Parent function	Callsite	Largest blocked function
175	374	ImageDecoder::total_bytes	call site: 00374	tests::test_image_outside_image_no_wrap_around
120	1143	BmpDecoder::read_palette	call site: 01143	horizontal_sample
119	570	Limits::check_dimensions	call site: 00570	FarbfeldDecoder::new
116	1653	ImageDecoder::set_limits	call site: 01653	Delay::closest_bounded_fraction
80	869	expand_rgb15_to_rgb24	call site: 00869	BmpDecoder::read_metadata
67	74	ColorMap::get	call site: 00074	Orientation::locate_orientation_entry
53	777	Header::from_reader	call site: 00777	ImageReader::into_dimensions
45	1554	HeaderReader::read_magic_constant	call site: 01554	PnmDecoder::read_graymap_header
40	170	ImageBuffer::inner_pixels	call site: 00170	BmpDecoder::num_channels
39	1602	utils::check_dimension_overflow	call site: 01602	FarbfeldReader::new
35	37	gcd	call site: 00037	ImageReader::make_decoder
33	1518	HdrDecoder::with_strictness	call site: 01518	OpenExrDecoder::with_alpha_preference

Runtime coverage analysis

Covered functions

1562

Functions that are reachable but not covered

6

Reachable functions

8

Percentage of reachable functions covered

25.0%

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.

Warning: The number of covered functions are larger than the number of reachable functions. This means that there are more functions covered at runtime than are extracted using static analysis. This is likely a result of the static analysis component failing to extract the right call graph or the coverage runtime being compiled with sanitizers in code that the static analysis has not analysed. This can happen if lto/gold is not used in all places that coverage instrumentation is used.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
fuzz/fuzzers/fuzzer_script_exr.rs	20
src/codecs/openexr.rs	36
src/hooks.rs	128
src/images/buffer.rs	14
src/images/buffer_par.rs	1
src/animation.rs	18
src/traits.rs	10
src/codecs/avif/encoder.rs	5
src/io/image_reader_type.rs	37
src/images/flat.rs	2
src/codecs/tga/decoder.rs	15
src/metadata.rs	15
src/codecs/hdr/encoder.rs	2
src/color.rs	21
src/io/format.rs	2
src/codecs/farbfeld.rs	7
src/utils/mod.rs	4
src/io/free_functions.rs	11
src/io/decoder.rs	10
src/imageops/fast_blur.rs	7
src/imageops/mod.rs	17
src/images/generic_image.rs	11
src/codecs/avif/decoder.rs	8
src/codecs/png.rs	21
src/io/limits.rs	5
src/codecs/tiff.rs	15
src/codecs/dds.rs	11
src/io.rs	10
src/codecs/hdr/decoder.rs	55
src/codecs/bmp/decoder.rs	51
src/imageops/sample.rs	30
src/codecs/ico/decoder.rs	16
src/codecs/pnm/decoder.rs	11

Fuzzer: fuzzer_script_tga

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	1505	86.4%
gold	[1:9]	50	2.87%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	15	0.86%
lawngreen	50+	171	9.82%
All colors	1741	100

Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked	Calltree index	Parent function	Callsite	Largest blocked function
359	985	TgaDecoder::expand_color_map	call site: 00985	BmpDecoder::read_bitmap_info_header
289	1345	hdr::HdrDecoder::new	call site: 01345	HdrMetadata::update_header_info
168	362	ImageDecoder::total_bytes	call site: 00362	tests::test_image_outside_image_no_wrap_around
119	537	avif::AvifDecoder::new	call site: 00537	FarbfeldDecoder::new
115	848	tga::TgaDecoder::new	call site: 00848	BmpDecoder::read_metadata
86	36	ColorMap::get	call site: 00036	Orientation::locate_orientation_entry
83	657	FarbfeldDecoder::new	call site: 00657	TgaDecoder::expand_color_map
52	152	TgaDecoder::expand_color_map	call site: 00152	ImageReader::into_dimensions
47	292	dav1d::Decoder::new	call site: 00292	Enlargeable::clamp_from
34	1645	ico::IcoDecoder::new	call site: 01645	ImageDecoder::set_limits
29	217	TgaDecoder::expand_color_map	call site: 00217	Orientation::locate_orientation_entry
23	268	TgaDecoder::expand_color_map	call site: 00268	TgaDecoder::expand_color_map

Runtime coverage analysis

Covered functions

40

Functions that are reachable but not covered

2

Reachable functions

7

Percentage of reachable functions covered

71.43%

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.

Warning: The number of covered functions are larger than the number of reachable functions. This means that there are more functions covered at runtime than are extracted using static analysis. This is likely a result of the static analysis component failing to extract the right call graph or the coverage runtime being compiled with sanitizers in code that the static analysis has not analysed. This can happen if lto/gold is not used in all places that coverage instrumentation is used.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
fuzz/fuzzers/fuzzer_script_tga.rs	2
tests/limits_anim.rs	5
src/hooks.rs	128
src/codecs/dds.rs	11
src/codecs/avif/encoder.rs	5
src/io/image_reader_type.rs	37
src/images/flat.rs	2
src/codecs/tga/decoder.rs	15
src/animation.rs	18
src/metadata.rs	15
src/traits.rs	10
src/images/buffer.rs	14
src/images/buffer_par.rs	1
src/codecs/hdr/encoder.rs	2
src/color.rs	17
src/io/format.rs	2
src/codecs/farbfeld.rs	7
src/utils/mod.rs	4
src/io/free_functions.rs	11
src/io/decoder.rs	10
src/imageops/fast_blur.rs	7
src/imageops/mod.rs	17
src/images/generic_image.rs	11
src/codecs/avif/decoder.rs	8
src/codecs/png.rs	21
src/io/limits.rs	5
src/codecs/tiff.rs	15
src/io.rs	10
src/codecs/hdr/decoder.rs	55
src/codecs/openexr.rs	15
src/codecs/bmp/decoder.rs	51
src/imageops/sample.rs	30
src/codecs/ico/decoder.rs	16
src/codecs/pnm/decoder.rs	11

Fuzzer: fuzzer_script_jpeg

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	1244	73.0%
gold	[1:9]	78	4.58%
yellow	[10:29]	20	1.17%
greenyellow	[30:49]	10	0.58%
lawngreen	50+	350	20.5%
All colors	1702	100

Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked	Calltree index	Parent function	Callsite	Largest blocked function
175	376	ImageDecoder::total_bytes	call site: 00376	tests::test_image_outside_image_no_wrap_around
120	1140	BmpDecoder::read_palette	call site: 01140	horizontal_sample
116	570	Limits::check_dimensions	call site: 00570	FarbfeldDecoder::new
80	52	ColorMap::get	call site: 00052	Orientation::locate_orientation_entry
80	866	expand_rgb15_to_rgb24	call site: 00866	BmpDecoder::read_metadata
56	1536	gcd	call site: 01536	Delay::closest_bounded_fraction
53	774	Header::from_reader	call site: 00774	ImageReader::into_dimensions
45	1595	HeaderReader::read_magic_constant	call site: 01595	PnmDecoder::read_graymap_header
40	181	ImageBuffer::inner_pixels	call site: 00181	BmpDecoder::num_channels
39	1643	utils::check_dimension_overflow	call site: 01643	FarbfeldReader::new
30	303	ImageReader::make_decoder	call site: 00303	FarbfeldReader::new
26	240	TgaDecoder::expand_color_map	call site: 00240	Orientation::locate_orientation_entry

Runtime coverage analysis

Covered functions

1562

Functions that are reachable but not covered

1

Reachable functions

2

Percentage of reachable functions covered

50.0%

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.

Warning: The number of covered functions are larger than the number of reachable functions. This means that there are more functions covered at runtime than are extracted using static analysis. This is likely a result of the static analysis component failing to extract the right call graph or the coverage runtime being compiled with sanitizers in code that the static analysis has not analysed. This can happen if lto/gold is not used in all places that coverage instrumentation is used.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
fuzz/fuzzers/fuzzer_script_jpeg.rs	2
src/images/dynimage.rs	2
src/hooks.rs	129
src/io/free_functions.rs	14
src/io/limits.rs	5
src/io/image_reader_type.rs	39
tests/limits_anim.rs	6
src/io/decoder.rs	10
src/images/flat.rs	2
src/codecs/tga/decoder.rs	15
src/animation.rs	18
src/metadata.rs	15
src/traits.rs	10
src/images/buffer.rs	14
src/images/buffer_par.rs	1
src/codecs/avif/encoder.rs	5
src/codecs/hdr/encoder.rs	2
src/color.rs	17
src/io/format.rs	2
src/codecs/farbfeld.rs	7
src/utils/mod.rs	4
src/imageops/fast_blur.rs	7
src/imageops/mod.rs	17
src/images/generic_image.rs	11
src/codecs/avif/decoder.rs	8
src/codecs/png.rs	21
src/codecs/tiff.rs	15
src/codecs/dds.rs	11
src/io.rs	10
src/codecs/hdr/decoder.rs	55
src/codecs/openexr.rs	15
src/codecs/bmp/decoder.rs	51
src/imageops/sample.rs	30
src/codecs/ico/decoder.rs	16
src/codecs/pnm/decoder.rs	11
src/codecs/gif.rs	3

Fuzzer: fuzzer_script_guess

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	1342	74.5%
gold	[1:9]	78	4.33%
yellow	[10:29]	20	1.11%
greenyellow	[30:49]	10	0.55%
lawngreen	50+	350	19.4%
All colors	1800	100

Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked	Calltree index	Parent function	Callsite	Largest blocked function
175	368	ImageDecoder::total_bytes	call site: 00368	tests::test_image_outside_image_no_wrap_around
120	1127	BmpDecoder::read_palette	call site: 01127	horizontal_sample
119	564	Limits::check_dimensions	call site: 00564	FarbfeldDecoder::new
80	854	expand_rgb15_to_rgb24	call site: 00854	BmpDecoder::read_metadata
79	1691	ColorType::channel_count	call site: 01691	GifEncoder::set_repeat
78	46	ColorMap::get	call site: 00046	Orientation::locate_orientation_entry
56	1523	gcd	call site: 01523	Delay::closest_bounded_fraction
53	771	Header::from_reader	call site: 00771	ImageReader::into_dimensions
45	1582	HeaderReader::read_magic_constant	call site: 01582	PnmDecoder::read_graymap_header
40	167	ImageBuffer::inner_pixels	call site: 00167	BmpDecoder::num_channels
39	1630	utils::check_dimension_overflow	call site: 01630	FarbfeldReader::new
33	0	EP	call site: 00000	ImageReader::guess_format

Runtime coverage analysis

Covered functions

1562

Functions that are reachable but not covered

2

Reachable functions

2

Percentage of reachable functions covered

0.0%

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.

Warning: The number of covered functions are larger than the number of reachable functions. This means that there are more functions covered at runtime than are extracted using static analysis. This is likely a result of the static analysis component failing to extract the right call graph or the coverage runtime being compiled with sanitizers in code that the static analysis has not analysed. This can happen if lto/gold is not used in all places that coverage instrumentation is used.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
fuzz/fuzzers/fuzzer_script_guess.rs	2
src/images/dynimage.rs	4
src/io/image_reader_type.rs	48
src/hooks.rs	138
src/animation.rs	18
src/codecs/hdr/decoder.rs	55
src/color.rs	17
src/codecs/avif/encoder.rs	5
src/images/flat.rs	2
src/codecs/tga/decoder.rs	15
src/metadata.rs	15
src/traits.rs	10
src/images/buffer.rs	14
src/images/buffer_par.rs	1
src/codecs/hdr/encoder.rs	2
src/io/format.rs	2
src/codecs/farbfeld.rs	7
src/utils/mod.rs	4
src/io/free_functions.rs	24
src/io/decoder.rs	10
src/imageops/fast_blur.rs	7
src/imageops/mod.rs	17
src/images/generic_image.rs	11
src/codecs/avif/decoder.rs	8
src/codecs/png.rs	21
src/io/limits.rs	5
src/codecs/tiff.rs	15
src/codecs/dds.rs	11
src/io.rs	10
src/codecs/openexr.rs	15
src/codecs/bmp/decoder.rs	51
src/imageops/sample.rs	30
src/codecs/ico/decoder.rs	16
src/codecs/pnm/decoder.rs	11
src/codecs/gif.rs	9
tests/limits_anim.rs	6

Optimal target analysis

Remaining optimal interesting functions

The following table shows a list of functions that are optimal targets. Optimal targets are identified by finding the functions that in combination, yield a high code coverage.

Func name	Functions filename	Arg count	Args	Function depth	hitcount	instr count	bb count	cyclomatic complexity	Reachable functions	Incoming references	total cyclomatic complexity	Unreached complexity

Implementing fuzzers that target the above functions will improve reachability such that it becomes:

Functions statically reachable by fuzzers

5 / 1586

Cyclomatic complexity statically reachable by fuzzers

11 / 2106

All functions overview

If you implement fuzzers for these functions, the status of all functions in the project will be:

Func name	Functions filename	Args	Function call depth	Reached by Fuzzers	Runtime reached by Fuzzers	Combined 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

This sections provides heuristics that can be used as input to a fuzz engine when running a given fuzz target. The current focus is on providing input that is usable by libFuzzer.

fuzz/fuzzers/fuzzer_script_gif.rs

Dictionary

Use this with the libFuzzer -dict=DICT.file flag

Fuzzer function priority

Use one of these functions as input to libfuzzer with flag: -focus_function name

-focus_function=['jpeg::JpegDecoder::new', 'ImageReader::make_decoder', 'ImageBuffer::inner_pixels_mut', 'gcd', 'Limits::check_support', 'Box::read_image', 'Limits::check_dimensions', 'ImageReader::set_format']

fuzz/fuzzers/fuzzer_script_pnm.rs

Dictionary

Use this with the libFuzzer -dict=DICT.file flag

Fuzzer function priority

Use one of these functions as input to libfuzzer with flag: -focus_function name

-focus_function=['dds::DdsDecoder::new', 'ImageReader::make_decoder', 'crate::utils::check_dimension_overflow', 'zune_core::options::DecoderOptions::default', 'ImageBuffer::image_buffer_len', 'crate::LimitSupport::default', 'Limits::check_dimensions', 'R::read_exact_vec', 'ImageReader::set_format']

fuzz/fuzzers/fuzzer_script_webp.rs

Dictionary

Use this with the libFuzzer -dict=DICT.file flag

Fuzzer function priority

Use one of these functions as input to libfuzzer with flag: -focus_function name

-focus_function=['ImageReader::make_decoder', 'ImageDecoder::total_bytes', 'ImageBuffer::image_buffer_len', 'Ratio::new', 'ImageDecoder::set_limits', 'Limits::check_dimensions', 'ImageReader::set_format']

fuzz/fuzzers/fuzzer_script_bmp.rs

Dictionary

Use this with the libFuzzer -dict=DICT.file flag

Fuzzer function priority

Use one of these functions as input to libfuzzer with flag: -focus_function name

-focus_function=['ImageReader::make_decoder', 'zune_core::options::DecoderOptions::default', 'ImageDecoder::total_bytes', 'ImageBuffer::image_buffer_len', 'BmpDecoder::read_palette', 'ImageDecoder::set_limits', 'R::read_exact_vec', 'bmp::BmpDecoder::new', 'Limits::check_dimensions']

fuzz/fuzzers/fuzzer_script_png.rs

Dictionary

Use this with the libFuzzer -dict=DICT.file flag

Fuzzer function priority

Use one of these functions as input to libfuzzer with flag: -focus_function name

-focus_function=['ColorType::channel_count', 'ImageReader::make_decoder', 'Limits::check_dimensions', 'ImageDecoder::total_bytes', 'ImageBuffer::image_buffer_len', 'Limits::check_support', 'ImageReader::set_format', 'ImageReader::require_format']

fuzz/fuzzers/fuzzer_script_ico.rs

Dictionary

Use this with the libFuzzer -dict=DICT.file flag

Fuzzer function priority

Use one of these functions as input to libfuzzer with flag: -focus_function name

-focus_function=['ImageReader::make_decoder', 'Limits::check_dimensions', 'ImageDecoder::total_bytes', 'ImageBuffer::image_buffer_len', 'BmpDecoder::read_palette', 'Limits::check_support', 'R::read_exact_vec', 'check_for_overflow']

fuzz/fuzzers/roundtrip_webp.rs

Dictionary

Use this with the libFuzzer -dict=DICT.file flag

Fuzzer function priority

Use one of these functions as input to libfuzzer with flag: -focus_function name

-focus_function=['ImageReader::make_decoder', 'ImageDecoder::total_bytes', 'Ratio::new', 'ImageBuffer::inner_pixels', 'Limits::check_dimensions', 'ImageBuffer::image_buffer_len', 'ImageBuffer::from_raw']

fuzz/fuzzers/fuzzer_script_tiff.rs

Dictionary

Use this with the libFuzzer -dict=DICT.file flag

Fuzzer function priority

Use one of these functions as input to libfuzzer with flag: -focus_function name

-focus_function=['err_unknown_color_type', 'ImageReader::make_decoder', 'ImageBuffer::image_buffer_len', 'Limits::check_support', 'Limits::check_dimensions', 'ImageError::from_tiff_decode', 'ImageReader::set_format', 'ImageReader::require_format']

fuzz/fuzzers/fuzzer_script_hdr.rs

Dictionary

Use this with the libFuzzer -dict=DICT.file flag

Fuzzer function priority

Use one of these functions as input to libfuzzer with flag: -focus_function name

-focus_function=['ExtendedColorType::color_type', 'ImageDecoder::total_bytes', 'zune_core::options::DecoderOptions::default', 'ImageBuffer::image_buffer_len', 'HdrDecoder::with_strictness', 'ImageDecoder::set_limits', 'io::Result::len', 'Limits::check_dimensions', 'ImageReader::make_decoder', 'utils::check_dimension_overflow']

fuzz/fuzzers/fuzzer_script_exr.rs

Dictionary

Use this with the libFuzzer -dict=DICT.file flag

Fuzzer function priority

Use one of these functions as input to libfuzzer with flag: -focus_function name

-focus_function=['ImageDecoder::total_bytes', 'BmpDecoder::read_palette', 'Limits::check_dimensions', 'ImageDecoder::set_limits', 'expand_rgb15_to_rgb24', 'ColorMap::get', 'Header::from_reader', 'HeaderReader::read_magic_constant', 'ImageBuffer::inner_pixels', 'utils::check_dimension_overflow']

fuzz/fuzzers/fuzzer_script_tga.rs

Dictionary

Use this with the libFuzzer -dict=DICT.file flag

Fuzzer function priority

Use one of these functions as input to libfuzzer with flag: -focus_function name

-focus_function=['TgaDecoder::expand_color_map', 'hdr::HdrDecoder::new', 'ImageDecoder::total_bytes', 'avif::AvifDecoder::new', 'tga::TgaDecoder::new', 'ColorMap::get', 'FarbfeldDecoder::new', 'dav1d::Decoder::new', 'ico::IcoDecoder::new']

fuzz/fuzzers/fuzzer_script_jpeg.rs

Dictionary

Use this with the libFuzzer -dict=DICT.file flag

Fuzzer function priority

Use one of these functions as input to libfuzzer with flag: -focus_function name

-focus_function=['ImageDecoder::total_bytes', 'BmpDecoder::read_palette', 'Limits::check_dimensions', 'ColorMap::get', 'expand_rgb15_to_rgb24', 'gcd', 'Header::from_reader', 'HeaderReader::read_magic_constant', 'ImageBuffer::inner_pixels', 'utils::check_dimension_overflow']

fuzz/fuzzers/fuzzer_script_guess.rs

Dictionary

Use this with the libFuzzer -dict=DICT.file flag

Fuzzer function priority

Use one of these functions as input to libfuzzer with flag: -focus_function name

-focus_function=['ImageDecoder::total_bytes', 'BmpDecoder::read_palette', 'Limits::check_dimensions', 'expand_rgb15_to_rgb24', 'ColorType::channel_count', 'ColorMap::get', 'gcd', 'Header::from_reader', 'HeaderReader::read_magic_constant', 'ImageBuffer::inner_pixels']

This section shows analysis of runtime coverage data.

For futher technical details on how this section is generated, please see the Glossary .

Complex functions with low coverage

Func name	Function total lines	Lines covered at runtime	percentage covered	Reached by fuzzers
image::io::image_reader_type::ImageReaderstd::io::cursor::Cursor&[u8]::make_decoder	34	17	50.0%
image_webp::encoder::WebPEncoder&mut std::io::cursor::Cursoralloc::vec::Vecu8::encode	61	19	31.14%
image::color::ExtendedColorType::bits_per_pixel	32	4	12.5%
miniz_oxide::inflate::core::decode_huffman_code::miniz_oxide::inflate::core::decompress::{closure:#9}	67	34	50.74%
tiff::decoder::image::Image::colortype	41	14	34.14%
tiff::decoder::Decoderstd::io::cursor::Cursor&[u8]::result_extent	42	20	47.61%
tiff::decoder::invert_colors	40	21	52.5%
zune_jpeg::decoder::JpegDecoderalloc::vec::Vecu8::parse_entropy_coded_data	142	76	53.52%
zune_jpeg::worker::color_convert	58	17	29.31%
image::codecs::tiff::check_sample_format	36	17	47.22%

New fuzzers

The below fuzzers are templates and suggestions for how to target the set of optimal functions above

This section shows which files and directories are considered in this report. The main reason for showing this is fuzz introspector may include more code in the reasoning than is desired. This section helps identify if too many files/directories are included, e.g. third party code, which may be irrelevant for the threat model. In the event too much is included, fuzz introspector supports a configuration file that can exclude data from the report. See the following link for more information on how to create a config file: link

Files in report

Source file	Reached by	Covered by
/src/image/src/codecs/hdr/encoder.rs	['fuzzer_script_gif', 'fuzzer_script_pnm', 'fuzzer_script_webp', 'fuzzer_script_bmp', 'fuzzer_script_png', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tiff', 'fuzzer_script_hdr', 'fuzzer_script_exr', 'fuzzer_script_tga', 'fuzzer_script_jpeg', 'fuzzer_script_guess']	['fuzzer_script_gif', 'fuzzer_script_pnm', 'fuzzer_script_webp', 'fuzzer_script_bmp', 'fuzzer_script_png', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tiff', 'fuzzer_script_hdr', 'fuzzer_script_exr', 'fuzzer_script_tga', 'fuzzer_script_jpeg', 'fuzzer_script_guess']
/src/image/src/imageops/mod.rs	['fuzzer_script_gif', 'fuzzer_script_pnm', 'fuzzer_script_webp', 'fuzzer_script_bmp', 'fuzzer_script_png', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tiff', 'fuzzer_script_hdr', 'fuzzer_script_exr', 'fuzzer_script_tga', 'fuzzer_script_jpeg', 'fuzzer_script_guess']	[]
/src/image/src/codecs/jpeg/decoder.rs	[]	[]
/src/image/src/animation.rs	['fuzzer_script_gif', 'fuzzer_script_pnm', 'fuzzer_script_webp', 'fuzzer_script_bmp', 'fuzzer_script_png', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tiff', 'fuzzer_script_hdr', 'fuzzer_script_exr', 'fuzzer_script_tga', 'fuzzer_script_jpeg', 'fuzzer_script_guess']	['fuzzer_script_gif', 'fuzzer_script_pnm', 'fuzzer_script_webp', 'fuzzer_script_bmp', 'fuzzer_script_png', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tiff', 'fuzzer_script_hdr', 'fuzzer_script_exr', 'fuzzer_script_tga', 'fuzzer_script_jpeg', 'fuzzer_script_guess']
/src/image/src/images/flat.rs	['fuzzer_script_gif', 'fuzzer_script_pnm', 'fuzzer_script_webp', 'fuzzer_script_bmp', 'fuzzer_script_png', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tiff', 'fuzzer_script_hdr', 'fuzzer_script_exr', 'fuzzer_script_tga', 'fuzzer_script_jpeg', 'fuzzer_script_guess']	['fuzzer_script_gif', 'fuzzer_script_pnm', 'fuzzer_script_webp', 'fuzzer_script_bmp', 'fuzzer_script_png', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tiff', 'fuzzer_script_hdr', 'fuzzer_script_exr', 'fuzzer_script_tga', 'fuzzer_script_jpeg', 'fuzzer_script_guess']
/src/image/examples/concat/main.rs	[]	[]
/src/image/fuzz/fuzzers/fuzzer_script_ico.rs	['fuzzer_script_ico']	[]
/src/image/src/imageops/fast_blur.rs	['fuzzer_script_gif', 'fuzzer_script_pnm', 'fuzzer_script_webp', 'fuzzer_script_bmp', 'fuzzer_script_png', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tiff', 'fuzzer_script_hdr', 'fuzzer_script_exr', 'fuzzer_script_tga', 'fuzzer_script_jpeg', 'fuzzer_script_guess']	[]
/src/image/benches/copy_from.rs	[]	[]
/src/image/fuzz/fuzzers/fuzzer_script_png.rs	['fuzzer_script_png']	[]
/src/image/src/codecs/gif.rs	['fuzzer_script_gif', 'fuzzer_script_pnm', 'fuzzer_script_webp', 'fuzzer_script_bmp', 'fuzzer_script_png', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tiff', 'fuzzer_script_hdr', 'fuzzer_script_jpeg', 'fuzzer_script_guess']	['fuzzer_script_gif', 'fuzzer_script_pnm', 'fuzzer_script_webp', 'fuzzer_script_bmp', 'fuzzer_script_png', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tiff', 'fuzzer_script_hdr', 'fuzzer_script_jpeg', 'fuzzer_script_guess']
/src/image/fuzz/fuzzers/fuzzer_script_hdr.rs	['fuzzer_script_hdr']	[]
/src/image/fuzz/fuzzers/fuzzer_script_jpeg.rs	['fuzzer_script_jpeg']	[]
/src/image/src/imageops/sample.rs	['fuzzer_script_gif', 'fuzzer_script_pnm', 'fuzzer_script_webp', 'fuzzer_script_bmp', 'fuzzer_script_png', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tiff', 'fuzzer_script_hdr', 'fuzzer_script_exr', 'fuzzer_script_tga', 'fuzzer_script_jpeg', 'fuzzer_script_guess']	['fuzzer_script_png', 'fuzzer_script_ico', 'fuzzer_script_tiff', 'fuzzer_script_exr', 'fuzzer_script_jpeg', 'fuzzer_script_guess']
/src/image/src/error.rs	[]	[]
/src/image/src/io.rs	['fuzzer_script_gif', 'fuzzer_script_pnm', 'fuzzer_script_webp', 'fuzzer_script_bmp', 'fuzzer_script_png', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tiff', 'fuzzer_script_hdr', 'fuzzer_script_exr', 'fuzzer_script_tga', 'fuzzer_script_jpeg', 'fuzzer_script_guess']	['fuzzer_script_pnm', 'fuzzer_script_bmp', 'fuzzer_script_ico', 'fuzzer_script_exr', 'fuzzer_script_tga', 'fuzzer_script_jpeg', 'fuzzer_script_guess']
/src/image/fuzz/fuzzers/fuzzer_script_tiff.rs	['fuzzer_script_tiff']	[]
/src/image/src/math/utils.rs	[]	[]
/src/image/src/utils/mod.rs	['fuzzer_script_gif', 'fuzzer_script_pnm', 'fuzzer_script_webp', 'fuzzer_script_bmp', 'fuzzer_script_png', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tiff', 'fuzzer_script_hdr', 'fuzzer_script_exr', 'fuzzer_script_tga', 'fuzzer_script_jpeg', 'fuzzer_script_guess']	['fuzzer_script_pnm', 'fuzzer_script_tiff', 'fuzzer_script_hdr', 'fuzzer_script_exr', 'fuzzer_script_jpeg', 'fuzzer_script_guess']
/src/image/src/io/decoder.rs	['fuzzer_script_gif', 'fuzzer_script_pnm', 'fuzzer_script_webp', 'fuzzer_script_bmp', 'fuzzer_script_png', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tiff', 'fuzzer_script_hdr', 'fuzzer_script_exr', 'fuzzer_script_tga', 'fuzzer_script_jpeg', 'fuzzer_script_guess']	['fuzzer_script_gif', 'fuzzer_script_pnm', 'fuzzer_script_webp', 'fuzzer_script_bmp', 'fuzzer_script_png', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tiff', 'fuzzer_script_hdr', 'fuzzer_script_exr', 'fuzzer_script_tga', 'fuzzer_script_jpeg', 'fuzzer_script_guess']
/src/image/benches/decode.rs	[]	[]
/src/image/src/images/buffer_par.rs	['fuzzer_script_gif', 'fuzzer_script_pnm', 'fuzzer_script_webp', 'fuzzer_script_bmp', 'fuzzer_script_png', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tiff', 'fuzzer_script_hdr', 'fuzzer_script_exr', 'fuzzer_script_tga', 'fuzzer_script_jpeg', 'fuzzer_script_guess']	['fuzzer_script_gif', 'fuzzer_script_pnm', 'fuzzer_script_webp', 'fuzzer_script_bmp', 'fuzzer_script_png', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tiff', 'fuzzer_script_hdr', 'fuzzer_script_exr', 'fuzzer_script_jpeg', 'fuzzer_script_guess']
/src/image/src/codecs/pnm/header.rs	[]	[]
/src/image/src/codecs/avif/yuv.rs	[]	[]
/src/image/fuzz/fuzzers/roundtrip_webp.rs	['roundtrip_webp']	[]
/src/image/fuzz/fuzzers/fuzzer_script_guess.rs	['fuzzer_script_guess']	[]
/src/image/examples/scaledown/main.rs	[]	[]
/src/image/src/codecs/png.rs	['fuzzer_script_gif', 'fuzzer_script_pnm', 'fuzzer_script_webp', 'fuzzer_script_bmp', 'fuzzer_script_png', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tiff', 'fuzzer_script_hdr', 'fuzzer_script_exr', 'fuzzer_script_tga', 'fuzzer_script_jpeg', 'fuzzer_script_guess']	['fuzzer_script_gif', 'fuzzer_script_pnm', 'fuzzer_script_webp', 'fuzzer_script_bmp', 'fuzzer_script_png', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tiff', 'fuzzer_script_hdr', 'fuzzer_script_exr', 'fuzzer_script_tga', 'fuzzer_script_jpeg', 'fuzzer_script_guess']
/src/image/src/codecs/tga/header.rs	['roundtrip_webp']	['roundtrip_webp']
/src/image/src/codecs/ico/encoder.rs	[]	[]
/src/image/src/lib.rs	[]	[]
/src/image/src/codecs/avif/encoder.rs	['fuzzer_script_gif', 'fuzzer_script_pnm', 'fuzzer_script_webp', 'fuzzer_script_bmp', 'fuzzer_script_png', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tiff', 'fuzzer_script_hdr', 'fuzzer_script_exr', 'fuzzer_script_tga', 'fuzzer_script_jpeg', 'fuzzer_script_guess']	['fuzzer_script_gif', 'fuzzer_script_pnm', 'fuzzer_script_webp', 'fuzzer_script_bmp', 'fuzzer_script_png', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tiff', 'fuzzer_script_hdr', 'fuzzer_script_exr', 'fuzzer_script_tga', 'fuzzer_script_jpeg', 'fuzzer_script_guess']
/src/image/src/io/image_reader_type.rs	['fuzzer_script_gif', 'fuzzer_script_pnm', 'fuzzer_script_webp', 'fuzzer_script_bmp', 'fuzzer_script_png', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tiff', 'fuzzer_script_hdr', 'fuzzer_script_exr', 'fuzzer_script_tga', 'fuzzer_script_jpeg', 'fuzzer_script_guess']	['fuzzer_script_gif', 'fuzzer_script_pnm', 'fuzzer_script_webp', 'fuzzer_script_bmp', 'fuzzer_script_png', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tiff', 'fuzzer_script_hdr', 'fuzzer_script_exr', 'fuzzer_script_tga', 'fuzzer_script_jpeg', 'fuzzer_script_guess']
/src/image/fuzz/fuzzers/fuzzer_script_webp.rs	['fuzzer_script_webp']	[]
/src/image/fuzz/fuzzers/fuzzer_script_gif.rs	['fuzzer_script_gif']	[]
/src/image/src/codecs/dxt.rs	[]	[]
/src/image/fuzz/fuzzers/fuzzer_script_bmp.rs	['fuzzer_script_bmp']	[]
/src/image/src/color.rs	['fuzzer_script_gif', 'fuzzer_script_pnm', 'fuzzer_script_webp', 'fuzzer_script_bmp', 'fuzzer_script_png', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tiff', 'fuzzer_script_hdr', 'fuzzer_script_exr', 'fuzzer_script_tga', 'fuzzer_script_jpeg', 'fuzzer_script_guess']	['fuzzer_script_gif', 'fuzzer_script_pnm', 'fuzzer_script_webp', 'fuzzer_script_bmp', 'fuzzer_script_png', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tiff', 'fuzzer_script_hdr', 'fuzzer_script_exr', 'fuzzer_script_tga', 'fuzzer_script_jpeg', 'fuzzer_script_guess']
/src/image/src/metadata/cicp.rs	[]	[]
/src/image/src/traits.rs	['fuzzer_script_gif', 'fuzzer_script_pnm', 'fuzzer_script_webp', 'fuzzer_script_bmp', 'fuzzer_script_png', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tiff', 'fuzzer_script_hdr', 'fuzzer_script_exr', 'fuzzer_script_tga', 'fuzzer_script_jpeg', 'fuzzer_script_guess']	['fuzzer_script_webp', 'roundtrip_webp', 'fuzzer_script_exr', 'fuzzer_script_jpeg', 'fuzzer_script_guess']
/src/image/src/math/rect.rs	[]	[]
/src/image/src/codecs/hdr/decoder.rs	['fuzzer_script_gif', 'fuzzer_script_pnm', 'fuzzer_script_webp', 'fuzzer_script_bmp', 'fuzzer_script_png', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tiff', 'fuzzer_script_hdr', 'fuzzer_script_exr', 'fuzzer_script_tga', 'fuzzer_script_jpeg', 'fuzzer_script_guess']	['fuzzer_script_gif', 'fuzzer_script_pnm', 'fuzzer_script_webp', 'fuzzer_script_bmp', 'fuzzer_script_png', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tiff', 'fuzzer_script_hdr', 'fuzzer_script_exr', 'fuzzer_script_tga', 'fuzzer_script_jpeg', 'fuzzer_script_guess']
/src/image/tests/reference_images.rs	[]	[]
/src/image/src/codecs/bmp/encoder.rs	[]	[]
/src/image/tests/limits.rs	[]	[]
/src/image/fuzz/fuzzers/fuzzer_script_exr.rs	['fuzzer_script_exr']	[]
/src/image/src/codecs/tga/decoder.rs	['fuzzer_script_gif', 'fuzzer_script_pnm', 'fuzzer_script_webp', 'fuzzer_script_bmp', 'fuzzer_script_png', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tiff', 'fuzzer_script_hdr', 'fuzzer_script_exr', 'fuzzer_script_tga', 'fuzzer_script_jpeg', 'fuzzer_script_guess']	['fuzzer_script_gif', 'fuzzer_script_pnm', 'fuzzer_script_webp', 'fuzzer_script_bmp', 'fuzzer_script_png', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tiff', 'fuzzer_script_hdr', 'fuzzer_script_exr', 'fuzzer_script_tga', 'fuzzer_script_jpeg', 'fuzzer_script_guess']
/src/image/tests/truncate_images.rs	[]	[]
/src/image/fuzz/fuzzers/fuzzer_script_pnm.rs	['fuzzer_script_pnm']	[]
/src/image/src/io/encoder.rs	[]	[]
/src/image/src/codecs/openexr.rs	['fuzzer_script_gif', 'fuzzer_script_pnm', 'fuzzer_script_webp', 'fuzzer_script_bmp', 'fuzzer_script_png', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tiff', 'fuzzer_script_hdr', 'fuzzer_script_exr', 'fuzzer_script_tga', 'fuzzer_script_jpeg', 'fuzzer_script_guess']	['fuzzer_script_gif', 'fuzzer_script_pnm', 'fuzzer_script_webp', 'fuzzer_script_bmp', 'fuzzer_script_png', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tiff', 'fuzzer_script_hdr', 'fuzzer_script_exr', 'fuzzer_script_tga', 'fuzzer_script_jpeg', 'fuzzer_script_guess']
/src/image/src/codecs/pnm/mod.rs	[]	[]
/src/image/src/codecs/pnm/encoder.rs	[]	[]
/src/image/src/codecs/webp/encoder.rs	[]	[]
/src/image/fuzz-afl/reproducers/reproduce_pnm.rs	[]	[]
/src/image/src/codecs/webp/decoder.rs	[]	[]
/src/image/src/codecs/avif/decoder.rs	['fuzzer_script_gif', 'fuzzer_script_pnm', 'fuzzer_script_webp', 'fuzzer_script_bmp', 'fuzzer_script_png', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tiff', 'fuzzer_script_hdr', 'fuzzer_script_exr', 'fuzzer_script_tga', 'fuzzer_script_jpeg', 'fuzzer_script_guess']	['fuzzer_script_gif', 'fuzzer_script_pnm', 'fuzzer_script_webp', 'fuzzer_script_bmp', 'fuzzer_script_png', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tiff', 'fuzzer_script_hdr', 'fuzzer_script_exr', 'fuzzer_script_tga', 'fuzzer_script_jpeg', 'fuzzer_script_guess']
/src/image/src/io/free_functions.rs	['fuzzer_script_gif', 'fuzzer_script_pnm', 'fuzzer_script_webp', 'fuzzer_script_bmp', 'fuzzer_script_png', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tiff', 'fuzzer_script_hdr', 'fuzzer_script_exr', 'fuzzer_script_tga', 'fuzzer_script_jpeg', 'fuzzer_script_guess']	[]
/src/image/src/metadata.rs	['fuzzer_script_gif', 'fuzzer_script_pnm', 'fuzzer_script_webp', 'fuzzer_script_bmp', 'fuzzer_script_png', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tiff', 'fuzzer_script_hdr', 'fuzzer_script_exr', 'fuzzer_script_tga', 'fuzzer_script_jpeg', 'fuzzer_script_guess']	[]
/src/image/tests/limits_anim.rs	['fuzzer_script_gif', 'fuzzer_script_pnm', 'fuzzer_script_webp', 'fuzzer_script_bmp', 'fuzzer_script_png', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tiff', 'fuzzer_script_hdr', 'fuzzer_script_tga', 'fuzzer_script_jpeg', 'fuzzer_script_guess']	[]
/src/image/src/codecs/tiff.rs	['fuzzer_script_gif', 'fuzzer_script_pnm', 'fuzzer_script_webp', 'fuzzer_script_bmp', 'fuzzer_script_png', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tiff', 'fuzzer_script_hdr', 'fuzzer_script_exr', 'fuzzer_script_tga', 'fuzzer_script_jpeg', 'fuzzer_script_guess']	['fuzzer_script_gif', 'fuzzer_script_pnm', 'fuzzer_script_webp', 'fuzzer_script_bmp', 'fuzzer_script_png', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tiff', 'fuzzer_script_hdr', 'fuzzer_script_exr', 'fuzzer_script_tga', 'fuzzer_script_jpeg', 'fuzzer_script_guess']
/src/image/src/images/generic_image.rs	['fuzzer_script_gif', 'fuzzer_script_pnm', 'fuzzer_script_webp', 'fuzzer_script_bmp', 'fuzzer_script_png', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tiff', 'fuzzer_script_hdr', 'fuzzer_script_exr', 'fuzzer_script_tga', 'fuzzer_script_jpeg', 'fuzzer_script_guess']	['fuzzer_script_gif', 'fuzzer_script_pnm', 'fuzzer_script_webp', 'fuzzer_script_png', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tiff', 'fuzzer_script_exr', 'fuzzer_script_jpeg', 'fuzzer_script_guess']
/src/image/benches/blur.rs	[]	[]
/src/image/src/codecs/pnm/autobreak.rs	[]	[]
/src/image/src/codecs/jpeg/encoder.rs	[]	[]
/src/image/tests/metadata.rs	[]	[]
/src/image/tests/save_pnm.rs	[]	[]
/src/image/benches/encode.rs	[]	[]
/src/image/src/codecs/pnm/decoder.rs	['fuzzer_script_gif', 'fuzzer_script_pnm', 'fuzzer_script_webp', 'fuzzer_script_bmp', 'fuzzer_script_png', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tiff', 'fuzzer_script_hdr', 'fuzzer_script_exr', 'fuzzer_script_tga', 'fuzzer_script_jpeg', 'fuzzer_script_guess']	['fuzzer_script_gif', 'fuzzer_script_pnm', 'fuzzer_script_webp', 'fuzzer_script_bmp', 'fuzzer_script_png', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tiff', 'fuzzer_script_hdr', 'fuzzer_script_exr', 'fuzzer_script_tga', 'fuzzer_script_jpeg', 'fuzzer_script_guess']
/src/image/src/imageops/affine.rs	[]	[]
/src/image/src/codecs/tga/encoder.rs	[]	[]
/src/image/src/imageops/filter_1d.rs	[]	[]
/src/image/src/images/buffer.rs	['fuzzer_script_gif', 'fuzzer_script_pnm', 'fuzzer_script_webp', 'fuzzer_script_bmp', 'fuzzer_script_png', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tiff', 'fuzzer_script_hdr', 'fuzzer_script_exr', 'fuzzer_script_tga', 'fuzzer_script_jpeg', 'fuzzer_script_guess']	['fuzzer_script_gif', 'fuzzer_script_pnm', 'fuzzer_script_webp', 'fuzzer_script_bmp', 'fuzzer_script_png', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tiff', 'fuzzer_script_hdr', 'fuzzer_script_exr', 'fuzzer_script_tga', 'fuzzer_script_jpeg', 'fuzzer_script_guess']
/src/image/fuzz-afl/reproducers/reproduce_webp.rs	[]	[]
/src/image/src/io/limits.rs	['fuzzer_script_gif', 'fuzzer_script_pnm', 'fuzzer_script_webp', 'fuzzer_script_bmp', 'fuzzer_script_png', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tiff', 'fuzzer_script_hdr', 'fuzzer_script_exr', 'fuzzer_script_tga', 'fuzzer_script_jpeg', 'fuzzer_script_guess']	['fuzzer_script_gif', 'fuzzer_script_pnm', 'fuzzer_script_webp', 'fuzzer_script_bmp', 'fuzzer_script_png', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tiff', 'fuzzer_script_hdr', 'fuzzer_script_exr', 'fuzzer_script_jpeg', 'fuzzer_script_guess']
/src/image/src/codecs/qoi.rs	[]	[]
/src/image/src/codecs/bmp/decoder.rs	['fuzzer_script_gif', 'fuzzer_script_pnm', 'fuzzer_script_webp', 'fuzzer_script_bmp', 'fuzzer_script_png', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tiff', 'fuzzer_script_hdr', 'fuzzer_script_exr', 'fuzzer_script_tga', 'fuzzer_script_jpeg', 'fuzzer_script_guess']	['fuzzer_script_gif', 'fuzzer_script_pnm', 'fuzzer_script_webp', 'fuzzer_script_bmp', 'fuzzer_script_png', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tiff', 'fuzzer_script_hdr', 'fuzzer_script_exr', 'fuzzer_script_tga', 'fuzzer_script_jpeg', 'fuzzer_script_guess']
/src/image/src/codecs/farbfeld.rs	['fuzzer_script_gif', 'fuzzer_script_pnm', 'fuzzer_script_webp', 'fuzzer_script_bmp', 'fuzzer_script_png', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tiff', 'fuzzer_script_hdr', 'fuzzer_script_exr', 'fuzzer_script_tga', 'fuzzer_script_jpeg', 'fuzzer_script_guess']	['fuzzer_script_gif', 'fuzzer_script_pnm', 'fuzzer_script_webp', 'fuzzer_script_bmp', 'fuzzer_script_png', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tiff', 'fuzzer_script_hdr', 'fuzzer_script_exr', 'fuzzer_script_tga', 'fuzzer_script_jpeg', 'fuzzer_script_guess']
/src/image/src/codecs/avif/ycgco.rs	[]	[]
/src/image/src/codecs/dds.rs	['fuzzer_script_gif', 'fuzzer_script_pnm', 'fuzzer_script_webp', 'fuzzer_script_bmp', 'fuzzer_script_png', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tiff', 'fuzzer_script_hdr', 'fuzzer_script_exr', 'fuzzer_script_tga', 'fuzzer_script_jpeg', 'fuzzer_script_guess']	['fuzzer_script_gif', 'fuzzer_script_pnm', 'fuzzer_script_webp', 'fuzzer_script_bmp', 'fuzzer_script_png', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tiff', 'fuzzer_script_hdr', 'fuzzer_script_exr', 'fuzzer_script_tga', 'fuzzer_script_jpeg', 'fuzzer_script_guess']
/src/image/src/images/sub_image.rs	[]	[]
/src/image/src/hooks.rs	['fuzzer_script_gif', 'fuzzer_script_pnm', 'fuzzer_script_webp', 'fuzzer_script_bmp', 'fuzzer_script_png', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tiff', 'fuzzer_script_hdr', 'fuzzer_script_exr', 'fuzzer_script_tga', 'fuzzer_script_jpeg', 'fuzzer_script_guess']	['fuzzer_script_gif', 'fuzzer_script_pnm', 'fuzzer_script_webp', 'fuzzer_script_bmp', 'fuzzer_script_png', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tiff', 'fuzzer_script_hdr', 'fuzzer_script_exr', 'fuzzer_script_tga', 'fuzzer_script_jpeg', 'fuzzer_script_guess']
/src/image/fuzz-afl/reproducers/utils.rs	[]	[]
/src/image/src/imageops/resize.rs	[]	[]
/src/image/src/io/format.rs	['fuzzer_script_gif', 'fuzzer_script_pnm', 'fuzzer_script_webp', 'fuzzer_script_bmp', 'fuzzer_script_png', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tiff', 'fuzzer_script_hdr', 'fuzzer_script_exr', 'fuzzer_script_tga', 'fuzzer_script_jpeg', 'fuzzer_script_guess']	['fuzzer_script_png', 'fuzzer_script_ico', 'fuzzer_script_tiff', 'fuzzer_script_exr', 'fuzzer_script_jpeg', 'fuzzer_script_guess']
/src/image/tests/save_jpeg.rs	[]	[]
/src/image/tests/conversions.rs	[]	[]
/src/image/tests/regression.rs	[]	[]
/src/image/src/imageops/colorops.rs	[]	[]
/src/image/src/images/dynimage.rs	['fuzzer_script_gif', 'fuzzer_script_pnm', 'fuzzer_script_webp', 'fuzzer_script_bmp', 'fuzzer_script_png', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tiff', 'fuzzer_script_hdr', 'fuzzer_script_jpeg', 'fuzzer_script_guess']	['fuzzer_script_gif', 'fuzzer_script_pnm', 'fuzzer_script_webp', 'fuzzer_script_bmp', 'fuzzer_script_png', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tiff', 'fuzzer_script_hdr', 'fuzzer_script_jpeg', 'fuzzer_script_guess']
/src/image/fuzz/fuzzers/fuzzer_script_tga.rs	['fuzzer_script_tga']	['fuzzer_script_tga']
/src/image/src/codecs/ico/decoder.rs	['fuzzer_script_gif', 'fuzzer_script_pnm', 'fuzzer_script_webp', 'fuzzer_script_bmp', 'fuzzer_script_png', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tiff', 'fuzzer_script_hdr', 'fuzzer_script_exr', 'fuzzer_script_tga', 'fuzzer_script_jpeg', 'fuzzer_script_guess']	['fuzzer_script_gif', 'fuzzer_script_pnm', 'fuzzer_script_webp', 'fuzzer_script_bmp', 'fuzzer_script_png', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tiff', 'fuzzer_script_hdr', 'fuzzer_script_exr', 'fuzzer_script_tga', 'fuzzer_script_jpeg', 'fuzzer_script_guess']

Directories in report

Directory
/src/image/src/codecs/webp/
/src/image/src/utils/
/src/image/src/codecs/tga/
/src/image/fuzz-afl/reproducers/
/src/image/src/codecs/avif/
/src/image/src/codecs/hdr/
/src/image/src/io/
/src/image/src/codecs/bmp/
/src/image/examples/scaledown/
/src/image/fuzz/fuzzers/
/src/image/src/imageops/
/src/image/src/codecs/pnm/
/src/image/src/codecs/ico/
/src/image/src/images/
/src/image/src/math/
/src/image/tests/
/src/image/src/codecs/jpeg/
/src/image/examples/concat/
/src/image/src/codecs/
/src/image/src/
/src/image/benches/
/src/image/src/metadata/

This section shows a list of 3rd party function calls and their relative coverage information. By static analysis of the target project code, all of the 3rd party function call and their caller information, including the source file and line number that initiate the call are captured. The caller source code file and line number are shown in column 2 while column 1 is the function name of the 3rd party function call. Each occurrent of the 3rd party function call will occuply a separate row. Column 3 of each row indicate if the 3rd party call in the source file line is unreachable. Column 4 lists all fuzzers that have covered that particular system call in that specific location (source file and line)during their dynamic fuzzing.

Function in each files in report

Target sink	Callsite location	Reached by fuzzer	Covered by Fuzzers