High level conclusions

Fuzzers reach 0.520% of cyclomatic complexity.

Fuzzers reach 0.318% of all functions.

Reachability and coverage overview

Functions statically reachable by fuzzers

5 / 1572

Cyclomatic complexity statically reachable by fuzzers

11 / 2113

Runtime code coverage of functions

556 / 1572

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_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	1479	88.8%
gold	[1:9]	40	2.40%
yellow	[10:29]	17	1.02%
greenyellow	[30:49]	11	0.66%
lawngreen	50+	117	7.03%
All colors	1664	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
319	1299	ImageReader::make_decoder	call site: 01299	HdrDecoder::with_strictness
256	245	ImageReader::make_decoder	call site: 00245	tests::test_image_outside_image_no_wrap_around
194	575	zune_core::options::DecoderOptions::default	call site: 00575	Header::from_reader
152	92	ImageBuffer::image_buffer_len	call site: 00092	Orientation::locate_orientation_entry
117	1071	BmpDecoder::read_palette	call site: 01071	vertical_sample
88	801	R::read_exact_vec	call site: 00801	Header::from_reader
85	2	image::load_from_memory_with_format	call site: 00002	ImageReader::make_decoder
69	1211	bmp::BmpDecoder::new	call site: 01211	ImageReader::make_decoder
55	519	Limits::check_dimensions	call site: 00519
22	932	check_for_overflow	call site: 00932	ColorMap::get
18	1645	ImageReader::set_format	call site: 01645	ImageDecoder::set_limits
17	770	R::read_exact_vec	call site: 00770	ImageReader::into_dimensions

Runtime coverage analysis

Covered functions

118

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/error.rs	111
src/codecs/avif/encoder.rs	5
src/io/image_reader_type.rs	42
src/hooks.rs	14
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/animation.rs	18
src/codecs/farbfeld.rs	9
src/color.rs	15
src/io/format.rs	2
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/hdr/decoder.rs	55
src/codecs/openexr.rs	15
src/codecs/bmp/decoder.rs	50
src/imageops/sample.rs	25
src/codecs/ico/decoder.rs	14
src/codecs/pnm/decoder.rs	11
tests/limits_anim.rs	6
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	1639	98.4%
gold	[1:9]	0	0.0%
yellow	[10:29]	5	0.30%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	20	1.20%
All colors	1664	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
499	781	::std::io::Result::channel_count	call site: 00781	BmpDecoder::read_metadata
333	1285	ImageReader::make_decoder	call site: 01285	HdrDecoder::with_strictness
253	519	Limits::check_dimensions	call site: 00519	Header::from_reader
215	283	FarbfeldReader::new	call site: 00283	tests::test_image_outside_image_no_wrap_around
152	92	ImageBuffer::image_buffer_len	call site: 00092	Orientation::locate_orientation_entry
85	2	image::load_from_memory_with_format	call site: 00002	ImageReader::make_decoder
37	245	ImageReader::make_decoder	call site: 00245	FarbfeldReader::new
18	1645	ImageReader::set_format	call site: 01645	ImageDecoder::set_limits
17	1621	ImageReader::require_format	call site: 01621	ImageDecoder::set_limits
16	502	Limits::check_support	call site: 00502	Limits::check_dimensions
5	773	ColorType::channel_count	call site: 00773	ImageReader::into_dimensions
4	1639	image::load_from_memory_with_format	call site: 01639

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/error.rs	111
src/codecs/avif/encoder.rs	5
src/io/image_reader_type.rs	42
src/hooks.rs	14
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/animation.rs	18
src/codecs/farbfeld.rs	9
src/color.rs	15
src/io/format.rs	2
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/hdr/decoder.rs	55
src/codecs/openexr.rs	15
src/codecs/bmp/decoder.rs	50
src/imageops/sample.rs	25
src/codecs/ico/decoder.rs	14
src/codecs/pnm/decoder.rs	11
tests/limits_anim.rs	6
src/codecs/gif.rs	3

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	1632	98.0%
gold	[1:9]	0	0.0%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	32	1.92%
All colors	1664	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
689	591	jpeg::JpegDecoder::new	call site: 00591	BmpDecoder::read_metadata
204	245	ImageReader::make_decoder	call site: 00245	tests::test_image_outside_image_no_wrap_around
183	1287	ImageReader::make_decoder	call site: 01287	HdrDecoder::with_strictness
146	98	ImageBuffer::inner_pixels_mut	call site: 00098	Orientation::locate_orientation_entry
146	1472	gcd	call site: 01472	Delay::closest_bounded_fraction
85	2	image::load_from_memory_with_format	call site: 00002	ImageReader::make_decoder
51	450	Box::read_image	call site: 00450	TgaDecoder::expand_color_map
36	519	Limits::check_dimensions	call site: 00519
21	557	ImageReader::make_decoder	call site: 00557
18	1645	ImageReader::set_format	call site: 01645	ImageDecoder::set_limits
17	1621	ImageReader::require_format	call site: 01621	ImageDecoder::set_limits
16	502	Limits::check_support	call site: 00502	Limits::check_dimensions

Runtime coverage analysis

Covered functions

174

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/error.rs	111
src/codecs/avif/encoder.rs	5
src/io/image_reader_type.rs	42
src/hooks.rs	14
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/animation.rs	18
src/codecs/farbfeld.rs	9
src/color.rs	15
src/io/format.rs	2
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/hdr/decoder.rs	55
src/codecs/openexr.rs	15
src/codecs/bmp/decoder.rs	50
src/imageops/sample.rs	25
src/codecs/ico/decoder.rs	14
src/codecs/pnm/decoder.rs	11
tests/limits_anim.rs	6
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	1539	92.4%
gold	[1:9]	12	0.72%
yellow	[10:29]	3	0.18%
greenyellow	[30:49]	5	0.30%
lawngreen	50+	105	6.31%
All colors	1664	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
405	875	dds::DdsDecoder::new	call site: 00875	BmpDecoder::read_metadata
244	1281	ImageReader::make_decoder	call site: 01281	HdrDecoder::with_strictness
194	575	zune_core::options::DecoderOptions::default	call site: 00575	Header::from_reader
177	324	ImageDecoder::total_bytes	call site: 00324	tests::test_image_outside_image_no_wrap_around
152	92	ImageBuffer::image_buffer_len	call site: 00092	Orientation::locate_orientation_entry
85	2	image::load_from_memory_with_format	call site: 00002	ImageReader::make_decoder
55	519	Limits::check_dimensions	call site: 00519
46	801	R::read_exact_vec	call site: 00801	Header::from_reader
30	245	ImageReader::make_decoder	call site: 00245	FarbfeldReader::new
23	278	crate::utils::check_dimension_overflow	call site: 00278	ExtendedColorType::color_type
18	1589	pnm::PnmDecoder::new	call site: 01589	FarbfeldReader::new
18	1645	ImageReader::set_format	call site: 01645	ImageDecoder::set_limits

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/error.rs	111
src/codecs/avif/encoder.rs	5
src/io/image_reader_type.rs	42
src/hooks.rs	14
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/animation.rs	18
src/codecs/farbfeld.rs	9
src/color.rs	15
src/io/format.rs	2
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/hdr/decoder.rs	55
src/codecs/openexr.rs	15
src/codecs/bmp/decoder.rs	50
src/imageops/sample.rs	25
src/codecs/ico/decoder.rs	14
src/codecs/pnm/decoder.rs	11
tests/limits_anim.rs	6
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	1681	98.2%
gold	[1:9]	0	0.0%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	30	1.75%
All colors	1711	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
667	609	ImageReader::make_decoder	call site: 00609	BmpDecoder::read_metadata
256	250	ImageReader::make_decoder	call site: 00250	tests::test_image_outside_image_no_wrap_around
204	45	ImageBuffer::inner_pixels	call site: 00045	Orientation::locate_orientation_entry
179	1287	ImageReader::make_decoder	call site: 01287	HdrDecoder::with_strictness
147	1467	Ratio::new	call site: 01467	Delay::closest_bounded_fraction
83	524	Limits::check_dimensions	call site: 00524	TgaDecoder::expand_color_map
29	1617	ImageReader::require_format	call site: 01617	ImageDecoder::set_limits
27	0	EP	call site: 00000	ImageReader::make_decoder
20	1661	ImageBuffer::from_raw	call site: 01661	Header::write_to
19	1691	ImageReader::set_format	call site: 01691	ImageDecoder::set_limits
16	507	Limits::check_support	call site: 00507	Limits::check_dimensions
11	32	ImageBuffer::image_buffer_len	call site: 00032

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	15
src/codecs/avif/encoder.rs	9
src/io/image_reader_type.rs	42
src/hooks.rs	14
src/images/flat.rs	2
src/codecs/tga/decoder.rs	15
src/error.rs	111
src/images/buffer.rs	16
src/images/buffer_par.rs	1
src/codecs/farbfeld.rs	9
src/traits.rs	10
src/metadata.rs	15
src/animation.rs	18
src/io/format.rs	2
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	50
src/imageops/sample.rs	25
src/codecs/ico/decoder.rs	14
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_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	1643	98.7%
gold	[1:9]	0	0.0%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	21	1.26%
All colors	1664	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
676	604	ImageReader::make_decoder	call site: 00604	BmpDecoder::read_metadata
256	245	ImageReader::make_decoder	call site: 00245	tests::test_image_outside_image_no_wrap_around
179	1291	ImageReader::make_decoder	call site: 01291	HdrDecoder::with_strictness
152	92	ImageBuffer::image_buffer_len	call site: 00092	Orientation::locate_orientation_entry
147	1471	Ratio::new	call site: 01471	Delay::closest_bounded_fraction
85	2	image::load_from_memory_with_format	call site: 00002	ImageReader::make_decoder
83	519	Limits::check_dimensions	call site: 00519	TgaDecoder::expand_color_map
18	1645	ImageReader::set_format	call site: 01645	ImageDecoder::set_limits
17	1621	ImageReader::require_format	call site: 01621	ImageDecoder::set_limits
16	502	Limits::check_support	call site: 00502	Limits::check_dimensions
8	1281	ImageReader::make_decoder	call site: 01281
4	1639	image::load_from_memory_with_format	call site: 01639

Runtime coverage analysis

Covered functions

339

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/error.rs	111
src/codecs/avif/encoder.rs	5
src/io/image_reader_type.rs	42
src/hooks.rs	14
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/animation.rs	18
src/codecs/farbfeld.rs	9
src/color.rs	15
src/io/format.rs	2
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/hdr/decoder.rs	55
src/codecs/openexr.rs	15
src/codecs/bmp/decoder.rs	50
src/imageops/sample.rs	25
src/codecs/ico/decoder.rs	14
src/codecs/pnm/decoder.rs	11
tests/limits_anim.rs	6
src/codecs/gif.rs	3

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	1642	98.6%
gold	[1:9]	0	0.0%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	22	1.32%
All colors	1664	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
519	761	tga::TgaDecoder::new	call site: 00761	BmpDecoder::read_metadata
329	1289	ImageReader::make_decoder	call site: 01289	HdrDecoder::with_strictness
256	245	ImageReader::make_decoder	call site: 00245	tests::test_image_outside_image_no_wrap_around
192	567	ImageReader::make_decoder	call site: 00567	Header::from_reader
152	92	ImageBuffer::image_buffer_len	call site: 00092	Orientation::locate_orientation_entry
85	2	image::load_from_memory_with_format	call site: 00002	ImageReader::make_decoder
46	519	Limits::check_dimensions	call site: 00519
18	1645	ImageReader::set_format	call site: 01645	ImageDecoder::set_limits
17	1621	ImageReader::require_format	call site: 01621	ImageDecoder::set_limits
16	502	Limits::check_support	call site: 00502	Limits::check_dimensions
6	1281	ImageReader::make_decoder	call site: 01281
4	1639	image::load_from_memory_with_format	call site: 01639

Runtime coverage analysis

Covered functions

229

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/error.rs	111
src/codecs/avif/encoder.rs	5
src/io/image_reader_type.rs	42
src/hooks.rs	14
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/animation.rs	18
src/codecs/farbfeld.rs	9
src/color.rs	15
src/io/format.rs	2
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/hdr/decoder.rs	55
src/codecs/openexr.rs	15
src/codecs/bmp/decoder.rs	50
src/imageops/sample.rs	25
src/codecs/ico/decoder.rs	14
src/codecs/pnm/decoder.rs	11
tests/limits_anim.rs	6
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	1459	87.6%
gold	[1:9]	40	2.40%
yellow	[10:29]	15	0.90%
greenyellow	[30:49]	5	0.30%
lawngreen	50+	145	8.71%
All colors	1664	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
317	1301	ImageReader::make_decoder	call site: 01301	HdrDecoder::with_strictness
250	519	Limits::check_dimensions	call site: 00519	Header::from_reader
177	324	ImageDecoder::total_bytes	call site: 00324	tests::test_image_outside_image_no_wrap_around
152	92	ImageBuffer::image_buffer_len	call site: 00092	Orientation::locate_orientation_entry
117	1071	BmpDecoder::read_palette	call site: 01071	vertical_sample
92	801	R::read_exact_vec	call site: 00801	BmpDecoder::read_metadata
85	2	image::load_from_memory_with_format	call site: 00002	ImageReader::make_decoder
37	245	ImageReader::make_decoder	call site: 00245	FarbfeldReader::new
22	932	check_for_overflow	call site: 00932	ColorMap::get
21	1213	ImageReader::make_decoder	call site: 01213	read_entries
18	283	FarbfeldReader::new	call site: 00283	ExtendedColorType::color_type
18	1281	ImageReader::make_decoder	call site: 01281

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/error.rs	111
src/codecs/avif/encoder.rs	5
src/io/image_reader_type.rs	42
src/hooks.rs	14
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/animation.rs	18
src/codecs/farbfeld.rs	9
src/color.rs	15
src/io/format.rs	2
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/hdr/decoder.rs	55
src/codecs/openexr.rs	15
src/codecs/bmp/decoder.rs	50
src/imageops/sample.rs	25
src/codecs/ico/decoder.rs	14
src/codecs/pnm/decoder.rs	11
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	1619	97.2%
gold	[1:9]	16	0.96%
yellow	[10:29]	5	0.30%
greenyellow	[30:49]	2	0.12%
lawngreen	50+	22	1.32%
All colors	1664	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
594	686	err_unknown_color_type	call site: 00686	BmpDecoder::read_metadata
314	1304	hdr::HdrDecoder::new	call site: 01304	HdrMetadata::update_header_info
256	245	ImageReader::make_decoder	call site: 00245	tests::test_image_outside_image_no_wrap_around
152	92	ImageBuffer::image_buffer_len	call site: 00092	Orientation::locate_orientation_entry
91	519	Limits::check_dimensions	call site: 00519	TgaDecoder::expand_color_map
85	2	image::load_from_memory_with_format	call site: 00002	ImageReader::make_decoder
23	612	ImageReader::make_decoder	call site: 00612	FarbfeldDecoder::new
23	658	ImageError::from_tiff_decode	call site: 00658	TgaDecoder::expand_color_map
18	1645	ImageReader::set_format	call site: 01645	ImageDecoder::set_limits
17	1621	ImageReader::require_format	call site: 01621	ImageDecoder::set_limits
16	502	Limits::check_support	call site: 00502	Limits::check_dimensions
10	1281	ImageReader::make_decoder	call site: 01281

Runtime coverage analysis

Covered functions

628

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/error.rs	111
src/codecs/avif/encoder.rs	5
src/io/image_reader_type.rs	42
src/hooks.rs	14
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/animation.rs	18
src/codecs/farbfeld.rs	9
src/color.rs	15
src/io/format.rs	2
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/hdr/decoder.rs	55
src/codecs/openexr.rs	15
src/codecs/bmp/decoder.rs	50
src/imageops/sample.rs	25
src/codecs/ico/decoder.rs	14
src/codecs/pnm/decoder.rs	11
tests/limits_anim.rs	6
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	1493	89.7%
gold	[1:9]	23	1.38%
yellow	[10:29]	4	0.24%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	144	8.65%
All colors	1664	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
493	787	io::Result::len	call site: 00787	BmpDecoder::read_metadata
223	278	crate::utils::check_dimension_overflow	call site: 00278	tests::test_image_outside_image_no_wrap_around
195	575	zune_core::options::DecoderOptions::default	call site: 00575	Header::from_reader
152	92	ImageBuffer::image_buffer_len	call site: 00092	Orientation::locate_orientation_entry
125	1451	HdrDecoder::with_strictness	call site: 01451	Delay::closest_bounded_fraction
85	2	image::load_from_memory_with_format	call site: 00002	ImageReader::make_decoder
55	519	Limits::check_dimensions	call site: 00519
30	245	ImageReader::make_decoder	call site: 00245	FarbfeldReader::new
24	1579	utils::check_dimension_overflow	call site: 01579	FarbfeldReader::new
20	1281	ImageReader::make_decoder	call site: 01281
18	1645	ImageReader::set_format	call site: 01645	ImageDecoder::set_limits
17	1621	ImageReader::require_format	call site: 01621	ImageDecoder::set_limits

Runtime coverage analysis

Covered functions

89

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/error.rs	111
src/codecs/avif/encoder.rs	5
src/io/image_reader_type.rs	42
src/hooks.rs	14
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/animation.rs	18
src/codecs/farbfeld.rs	9
src/color.rs	15
src/io/format.rs	2
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/hdr/decoder.rs	55
src/codecs/openexr.rs	15
src/codecs/bmp/decoder.rs	50
src/imageops/sample.rs	25
src/codecs/ico/decoder.rs	14
src/codecs/pnm/decoder.rs	11
tests/limits_anim.rs	6
src/codecs/gif.rs	3

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	1429	83.9%
gold	[1:9]	67	3.93%
yellow	[10:29]	20	1.17%
greenyellow	[30:49]	13	0.76%
lawngreen	50+	173	10.1%
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
287	1308	hdr::HdrDecoder::new	call site: 01308	HdrMetadata::update_header_info
259	958	TgaDecoder::expand_color_map	call site: 00958	BmpDecoder::read_bitmap_info_header
131	341	ImageDecoder::total_bytes	call site: 00341	tests::test_image_outside_image_no_wrap_around
115	515	avif::AvifDecoder::new	call site: 00515	FarbfeldDecoder::new
69	34	ColorMap::get	call site: 00034	Orientation::locate_orientation_entry
64	632	FarbfeldDecoder::new	call site: 00632	TgaDecoder::expand_color_map
59	821	tga::TgaDecoder::new	call site: 00821	Header::from_reader
52	884	DxtDecoder::new	call site: 00884	BmpDecoder::read_metadata
51	133	TgaDecoder::expand_color_map	call site: 00133	ImageReader::into_dimensions
37	1270	ico::IcoDecoder::new	call site: 01270	register_decoding_hook
35	1607	ico::IcoDecoder::new	call site: 01607	ImageDecoder::set_limits
31	1238	ico::IcoDecoder::new	call site: 01238	Enlargeable::clamp_from

Runtime coverage analysis

Covered functions

38

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/error.rs	109
src/codecs/dds.rs	11
src/codecs/avif/encoder.rs	5
src/io/image_reader_type.rs	40
src/hooks.rs	14
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/animation.rs	18
src/codecs/farbfeld.rs	9
src/color.rs	15
src/io/format.rs	2
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	50
src/imageops/sample.rs	25
src/codecs/ico/decoder.rs	14
src/codecs/pnm/decoder.rs	11

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	1678	96.8%
gold	[1:9]	0	0.0%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	55	3.17%
All colors	1733	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
656	827	to_image_err	call site: 00827	BmpDecoder::read_metadata
301	29	OpenExrDecoder::with_alpha_preference	call site: 00029	ImageReader::make_decoder
253	548	Limits::check_dimensions	call site: 00548	Header::from_reader
177	353	ImageDecoder::total_bytes	call site: 00353	tests::test_image_outside_image_no_wrap_around
94	1510	OpenExrDecoder::with_alpha_preference	call site: 01510	FarbfeldReader::new
46	1682	roundtrip	call site: 01682	write_buffer
31	1616	ImageDecoder::set_limits	call site: 01616	Delay::closest_bounded_fraction
19	9	OpenExrDecoder::with_alpha_preference	call site: 00009
16	531	Limits::check_support	call site: 00531	Limits::check_dimensions
14	1656	OpenExrDecoder::with_alpha_preference	call site: 01656	ImageDecoder::set_limits
13	810	::std::io::Result::channel_count	call site: 00810
13	1488	OpenExrDecoder::with_alpha_preference	call site: 01488	tests::small

Runtime coverage analysis

Covered functions

1652

Functions that are reachable but not covered

5

Reachable functions

8

Percentage of reachable functions covered

37.5%

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	14
src/images/buffer.rs	14
src/error.rs	109
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	40
src/images/flat.rs	2
src/codecs/tga/decoder.rs	15
src/codecs/farbfeld.rs	9
src/color.rs	19
src/metadata.rs	15
src/io/format.rs	2
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	50
src/imageops/sample.rs	25
src/codecs/ico/decoder.rs	14
src/codecs/pnm/decoder.rs	11

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	1329	75.6%
gold	[1:9]	74	4.21%
yellow	[10:29]	85	4.83%
greenyellow	[30:49]	25	1.42%
lawngreen	50+	244	13.8%
All colors	1757	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
174	327	ImageDecoder::total_bytes	call site: 00327	tests::test_image_outside_image_no_wrap_around
144	103	ImageBuffer::inner_pixels_mut	call site: 00103	Orientation::locate_orientation_entry
117	1074	BmpDecoder::read_palette	call site: 01074	vertical_sample
90	2	image::load_from_memory	call site: 00002	ImageReader::make_decoder
83	689	err_unknown_color_type	call site: 00689	Header::from_reader
47	845	DX10Header::validate	call site: 00845	DxtDecoder::new
44	1475	gcd	call site: 01475	Delay::closest_bounded_fraction
44	1652	Frame::clone	call site: 01652	GifEncoder::set_repeat
36	522	Limits::check_dimensions	call site: 00522
35	570	ImageReader::make_decoder	call site: 00570	TgaDecoder::expand_color_map
33	989	BmpDecoder::read_bitmap_info_header	call site: 00989
30	248	ImageReader::make_decoder	call site: 00248	FarbfeldReader::new

Runtime coverage analysis

Covered functions

2531

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_guess.rs	2
src/images/dynimage.rs	4
src/io/image_reader_type.rs	59
src/hooks.rs	14
src/error.rs	111
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/animation.rs	18
src/codecs/farbfeld.rs	9
src/color.rs	15
src/io/format.rs	2
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/hdr/decoder.rs	55
src/codecs/openexr.rs	15
src/codecs/bmp/decoder.rs	50
src/imageops/sample.rs	25
src/codecs/ico/decoder.rs	14
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 / 1572

Cyclomatic complexity statically reachable by fuzzers

11 / 2113

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_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', 'ImageBuffer::image_buffer_len', 'BmpDecoder::read_palette', 'R::read_exact_vec', 'image::load_from_memory_with_format', 'bmp::BmpDecoder::new', 'Limits::check_dimensions', 'check_for_overflow']

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=['::std::io::Result::channel_count', 'ImageReader::make_decoder', 'Limits::check_dimensions', 'FarbfeldReader::new', 'ImageBuffer::image_buffer_len', 'image::load_from_memory_with_format', 'ImageReader::set_format', 'ImageReader::require_format', 'Limits::check_support']

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', 'image::load_from_memory_with_format', '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', 'zune_core::options::DecoderOptions::default', 'ImageDecoder::total_bytes', 'ImageBuffer::image_buffer_len', 'image::load_from_memory_with_format', 'Limits::check_dimensions', 'R::read_exact_vec', 'crate::utils::check_dimension_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', 'ImageBuffer::inner_pixels', 'Ratio::new', 'Limits::check_dimensions', 'ImageReader::require_format', 'ImageBuffer::from_raw', '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', 'ImageBuffer::image_buffer_len', 'Ratio::new', 'image::load_from_memory_with_format', 'Limits::check_dimensions', 'ImageReader::set_format', 'ImageReader::require_format', 'Limits::check_support']

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=['tga::TgaDecoder::new', 'ImageReader::make_decoder', 'ImageBuffer::image_buffer_len', 'image::load_from_memory_with_format', 'Limits::check_dimensions', 'ImageReader::set_format', 'ImageReader::require_format', 'Limits::check_support']

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', 'R::read_exact_vec', 'image::load_from_memory_with_format', 'check_for_overflow']

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', 'hdr::HdrDecoder::new', 'ImageReader::make_decoder', 'ImageBuffer::image_buffer_len', 'Limits::check_dimensions', 'image::load_from_memory_with_format', '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=['io::Result::len', 'crate::utils::check_dimension_overflow', 'zune_core::options::DecoderOptions::default', 'ImageBuffer::image_buffer_len', 'HdrDecoder::with_strictness', 'image::load_from_memory_with_format', 'Limits::check_dimensions', 'ImageReader::make_decoder', '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=['hdr::HdrDecoder::new', 'TgaDecoder::expand_color_map', 'ImageDecoder::total_bytes', 'avif::AvifDecoder::new', 'ColorMap::get', 'FarbfeldDecoder::new', 'tga::TgaDecoder::new', 'DxtDecoder::new', 'ico::IcoDecoder::new']

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=['to_image_err', 'OpenExrDecoder::with_alpha_preference', 'Limits::check_dimensions', 'ImageDecoder::total_bytes', 'roundtrip', 'ImageDecoder::set_limits', 'Limits::check_support']

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', 'ImageBuffer::inner_pixels_mut', 'BmpDecoder::read_palette', 'image::load_from_memory', 'err_unknown_color_type', 'DX10Header::validate', 'gcd', 'Frame::clone', 'Limits::check_dimensions', 'ImageReader::make_decoder']

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_webp::encoder::WebPEncoder&mut std::io::cursor::Cursoralloc::vec::Vecu8::encode	61	19	31.14%
image::color::ExtendedColorType::bits_per_pixel	31	5	16.12%
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	77	54.22%
crossbeam_deque::deque::Workerrayon_core::job::JobRef::pop	53	7	13.20%
exr::meta::attribute::AttributeValue::write::exr::io::Tracking&mut std::io::cursor::Cursor&mut alloc::vec::Vecu8	32	13	40.62%
exr::meta::attribute::AttributeValue::read::exr::io::Trackingstd::io::cursor::Cursoralloc::vec::Vecu8::{closure:#0}	52	19	36.53%
exr::meta::header::Header::validate	67	36	53.73%
smallvec::SmallVec[u8; 16]::try_grow	31	17	54.83%
exr::compression::pxr24::decompress	44	6	13.63%
zune_inflate::decoder::DeflateDecoder::decode_zlib	54	19	35.18%
image::codecs::dds::DdsDecoderstd::io::cursor::Cursor&[u8]::new	54	18	33.33%

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

Directories in report

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