High level conclusions

Fuzzers reach 0.524% of cyclomatic complexity.

Fuzzers reach 0.314% of all functions.

Reachability and coverage overview

Functions statically reachable by fuzzers

5 / 1589

Cyclomatic complexity statically reachable by fuzzers

11 / 2097

Runtime code coverage of functions

569 / 1589

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	1702	98.1%
gold	[1:9]	0	0.0%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	32	1.84%
All colors	1734	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
733	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	1382	ImageReader::make_decoder	call site: 01382	HdrDecoder::with_strictness
156	146	ImageBuffer::inner_pixels_mut	call site: 00146	Orientation::locate_orientation_entry
146	1568	gcd	call site: 01568	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	1716	ImageReader::require_format	call site: 01716	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	57
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	1751	98.3%
gold	[1:9]	0	0.0%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	30	1.68%
All colors	1781	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
711	634	ImageReader::make_decoder	call site: 00634	BmpDecoder::read_metadata
257	271	ImageReader::make_decoder	call site: 00271	tests::test_image_outside_image_no_wrap_around
180	1356	ImageReader::make_decoder	call site: 01356	HdrDecoder::with_strictness
147	1537	Ratio::new	call site: 01537	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
33	111	ImageBuffer::image_buffer_len	call site: 00111	ImageReader::into_dimensions
29	1686	ImageReader::require_format	call site: 01686	ImageDecoder::set_limits
20	1730	ImageBuffer::from_raw	call site: 01730	Header::write_to
19	1761	ImageReader::set_format	call site: 01761	ImageDecoder::set_limits
16	529	Limits::check_support	call site: 00529	Limits::check_dimensions

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	57
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_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	1609	92.7%
gold	[1:9]	12	0.69%
yellow	[10:29]	3	0.17%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	110	6.34%
All colors	1734	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
447	928	dds::DdsDecoder::new	call site: 00928	BmpDecoder::read_metadata
245	1376	ImageReader::make_decoder	call site: 01376	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
95	40	ImageDecoder::set_limits	call site: 00040	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
23	336	crate::utils::check_dimension_overflow	call site: 00336	ExtendedColorType::color_type
18	1685	pnm::PnmDecoder::new	call site: 01685	FarbfeldReader::new
17	18	ImageReader::set_format	call site: 00018	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/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	57
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	1502	86.6%
gold	[1:9]	51	2.94%
yellow	[10:29]	13	0.74%
greenyellow	[30:49]	6	0.34%
lawngreen	50+	162	9.34%
All colors	1734	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	1394	ImageReader::make_decoder	call site: 01394	HdrDecoder::with_strictness
266	303	ImageReader::make_decoder	call site: 00303	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
120	1172	BmpDecoder::read_palette	call site: 01172	horizontal_sample
96	39	crate::LimitSupport::default	call site: 00039	ImageReader::make_decoder
83	859	R::read_exact_vec	call site: 00859	Header::from_reader
60	1315	bmp::BmpDecoder::new	call site: 01315	ImageReader::make_decoder
54	570	Limits::check_dimensions	call site: 00570
22	1003	check_for_overflow	call site: 01003	ColorMap::get
18	18	ImageReader::set_format	call site: 00018	ImageDecoder::set_limits
17	828	R::read_exact_vec	call site: 00828	ImageReader::into_dimensions

Runtime coverage analysis

Covered functions

120

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	57
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	1710	98.6%
gold	[1:9]	5	0.28%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	19	1.09%
All colors	1734	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
536	839	ColorType::channel_count	call site: 00839	BmpDecoder::read_metadata
334	1380	ImageReader::make_decoder	call site: 01380	HdrDecoder::with_strictness
260	570	Limits::check_dimensions	call site: 00570	Header::from_reader
248	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
18	18	ImageReader::set_format	call site: 00018	ImageDecoder::set_limits
17	1716	ImageReader::require_format	call site: 01716	ImageDecoder::set_limits
16	553	ImageReader::make_decoder	call site: 00553	Limits::check_dimensions
9	2	image::load_from_memory_with_format	call site: 00002
5	831	ColorType::channel_count	call site: 00831	ImageReader::into_dimensions
4	12	image::load_from_memory_with_format	call site: 00012

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	57
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_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	1713	98.7%
gold	[1:9]	0	0.0%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	21	1.21%
All colors	1734	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
573	802	tga::TgaDecoder::new	call site: 00802	BmpDecoder::read_metadata
330	1384	ImageReader::make_decoder	call site: 01384	HdrDecoder::with_strictness
266	303	ImageReader::make_decoder	call site: 00303	tests::test_image_outside_image_no_wrap_around
185	616	ImageReader::make_decoder	call site: 00616	Header::from_reader
162	140	ImageBuffer::image_buffer_len	call site: 00140	Orientation::locate_orientation_entry
98	37	Limits::check_support	call site: 00037	ImageReader::make_decoder
44	570	Limits::check_dimensions	call site: 00570
18	18	ImageReader::set_format	call site: 00018	ImageDecoder::set_limits
17	1716	ImageReader::require_format	call site: 01716	ImageDecoder::set_limits
9	2	image::load_from_memory_with_format	call site: 00002
6	1376	ImageReader::make_decoder	call site: 01376
4	12	image::load_from_memory_with_format	call site: 00012

Runtime coverage analysis

Covered functions

257

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	57
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	1497	86.3%
gold	[1:9]	58	3.34%
yellow	[10:29]	9	0.51%
greenyellow	[30:49]	4	0.23%
lawngreen	50+	166	9.57%
All colors	1734	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	1396	ImageReader::make_decoder	call site: 01396	HdrDecoder::with_strictness
260	303	ImageReader::make_decoder	call site: 00303	tests::test_image_outside_image_no_wrap_around
257	570	Limits::check_dimensions	call site: 00570	Header::from_reader
162	140	ImageBuffer::image_buffer_len	call site: 00140	Orientation::locate_orientation_entry
120	1172	BmpDecoder::read_palette	call site: 01172	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
22	1003	check_for_overflow	call site: 01003	ColorMap::get
21	1317	ImageReader::make_decoder	call site: 01317	read_entries
18	18	ImageReader::set_format	call site: 00018	ImageDecoder::set_limits
18	1376	ImageReader::make_decoder	call site: 01376
17	1716	ImageReader::require_format	call site: 01716	ImageDecoder::set_limits

Runtime coverage analysis

Covered functions

370

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	57
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	1555	89.6%
gold	[1:9]	23	1.32%
yellow	[10:29]	4	0.23%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	152	8.76%
All colors	1734	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
455	920	ExtendedColorType::color_type	call site: 00920	BmpDecoder::read_metadata
203	625	zune_core::options::DecoderOptions::default	call site: 00625	Header::from_reader
196	373	ExtendedColorType::color_type	call site: 00373	tests::test_image_outside_image_no_wrap_around
162	140	ImageBuffer::image_buffer_len	call site: 00140	Orientation::locate_orientation_entry
125	1547	HdrDecoder::with_strictness	call site: 01547	Delay::closest_bounded_fraction
96	39	crate::LimitSupport::default	call site: 00039	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	1675	utils::check_dimension_overflow	call site: 01675	FarbfeldReader::new
20	1376	ImageReader::make_decoder	call site: 01376
18	18	ImageReader::set_format	call site: 00018	ImageDecoder::set_limits

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	57
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	1713	98.7%
gold	[1:9]	0	0.0%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	21	1.21%
All colors	1734	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
720	655	ImageReader::make_decoder	call site: 00655	BmpDecoder::read_metadata
266	303	ImageReader::make_decoder	call site: 00303	tests::test_image_outside_image_no_wrap_around
180	1386	ImageReader::make_decoder	call site: 01386	HdrDecoder::with_strictness
162	140	ImageBuffer::image_buffer_len	call site: 00140	Orientation::locate_orientation_entry
147	1567	Ratio::new	call site: 01567	Delay::closest_bounded_fraction
98	37	Limits::check_support	call site: 00037	ImageReader::make_decoder
83	570	Limits::check_dimensions	call site: 00570	TgaDecoder::expand_color_map
18	18	ImageReader::set_format	call site: 00018	ImageDecoder::set_limits
17	1716	ImageReader::require_format	call site: 01716	ImageDecoder::set_limits
9	2	image::load_from_memory_with_format	call site: 00002
8	1376	ImageReader::make_decoder	call site: 01376
4	12	image::load_from_memory_with_format	call site: 00012

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	57
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_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	1690	97.4%
gold	[1:9]	15	0.86%
yellow	[10:29]	5	0.28%
greenyellow	[30:49]	3	0.17%
lawngreen	50+	21	1.21%
All colors	1734	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
638	737	err_unknown_color_type	call site: 00737	BmpDecoder::read_metadata
326	1388	ImageReader::make_decoder	call site: 01388	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	1716	ImageReader::require_format	call site: 01716	ImageDecoder::set_limits
10	1376	ImageReader::make_decoder	call site: 01376
9	2	image::load_from_memory_with_format	call site: 00002

Runtime coverage analysis

Covered functions

634

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	57
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_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	1537	86.6%
gold	[1:9]	41	2.31%
yellow	[10:29]	9	0.50%
greenyellow	[30:49]	15	0.84%
lawngreen	50+	171	9.64%
All colors	1773	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
373	1003	TgaDecoder::expand_color_map	call site: 01003	BmpDecoder::read_bitmasks
289	1377	hdr::HdrDecoder::new	call site: 01377	HdrMetadata::update_header_info
168	362	ImageDecoder::total_bytes	call site: 00362	tests::test_image_outside_image_no_wrap_around
133	848	tga::TgaDecoder::new	call site: 00848	BmpDecoder::read_metadata
119	537	avif::AvifDecoder::new	call site: 00537	FarbfeldDecoder::new
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	1677	ico::IcoDecoder::new	call site: 01677	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	57
src/imageops/sample.rs	30
src/codecs/ico/decoder.rs	16
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	1746	96.8%
gold	[1:9]	0	0.0%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	56	3.10%
All colors	1802	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
694	859	to_image_err	call site: 00859	BmpDecoder::read_metadata
273	78	Frame::clone	call site: 00078	Orientation::locate_orientation_entry
263	570	Limits::check_dimensions	call site: 00570	Header::from_reader
178	374	ImageDecoder::total_bytes	call site: 00374	tests::test_image_outside_image_no_wrap_around
100	1580	OpenExrDecoder::with_alpha_preference	call site: 01580	FarbfeldReader::new
47	29	OpenExrDecoder::with_alpha_preference	call site: 00029	ImageReader::make_decoder
46	1751	roundtrip	call site: 01751	write_buffer
31	1685	ImageDecoder::set_limits	call site: 01685	Delay::closest_bounded_fraction
19	9	OpenExrDecoder::with_alpha_preference	call site: 00009
16	553	Limits::check_support	call site: 00553	Limits::check_dimensions
14	1725	OpenExrDecoder::with_alpha_preference	call site: 01725	ImageDecoder::set_limits
13	842	ColorType::channel_count	call site: 00842

Runtime coverage analysis

Covered functions

1677

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	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	57
src/imageops/sample.rs	30
src/codecs/ico/decoder.rs	16
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	1375	75.0%
gold	[1:9]	78	4.25%
yellow	[10:29]	95	5.18%
greenyellow	[30:49]	16	0.87%
lawngreen	50+	268	14.6%
All colors	1832	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
150	138	ImageBuffer::inner_pixels_mut	call site: 00138	Orientation::locate_orientation_entry
120	1159	BmpDecoder::read_palette	call site: 01159	horizontal_sample
90	734	err_unknown_color_type	call site: 00734	Header::from_reader
78	49	Frame::clone	call site: 00049	Orientation::locate_orientation_entry
47	883	DX10Header::validate	call site: 00883	DxtDecoder::new
44	1555	gcd	call site: 01555	Delay::closest_bounded_fraction
37	613	ImageReader::make_decoder	call site: 00613	TgaDecoder::expand_color_map
37	1723	ColorType::channel_count	call site: 01723	GifEncoder::set_repeat
36	564	Limits::check_dimensions	call site: 00564
30	289	ImageReader::make_decoder	call site: 00289	FarbfeldReader::new
26	2	image::load_from_memory	call site: 00002

Runtime coverage analysis

Covered functions

2576

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	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	57
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 / 1589

Cyclomatic complexity statically reachable by fuzzers

11 / 2097

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/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', 'Ratio::new', 'ImageBuffer::inner_pixels', 'Limits::check_dimensions', 'ImageBuffer::image_buffer_len', 'ImageReader::require_format', 'ImageBuffer::from_raw']

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', 'ImageDecoder::set_limits', 'Limits::check_dimensions', 'R::read_exact_vec', 'crate::utils::check_dimension_overflow']

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', 'crate::LimitSupport::default', 'R::read_exact_vec', '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=['ColorType::channel_count', 'ImageReader::make_decoder', 'Limits::check_dimensions', 'ImageBuffer::image_buffer_len', 'Limits::check_support', 'ImageReader::set_format', 'ImageReader::require_format', 'image::load_from_memory_with_format']

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', 'Limits::check_support', 'Limits::check_dimensions', 'ImageReader::set_format', 'ImageReader::require_format', 'image::load_from_memory_with_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', 'ImageBuffer::image_buffer_len', 'BmpDecoder::read_palette', 'Limits::check_support', 'R::read_exact_vec', 'check_for_overflow', 'ImageReader::set_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', 'zune_core::options::DecoderOptions::default', 'ImageBuffer::image_buffer_len', 'HdrDecoder::with_strictness', 'crate::LimitSupport::default', 'io::Result::len', 'Limits::check_dimensions', 'ImageReader::make_decoder', 'utils::check_dimension_overflow']

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', 'Limits::check_support', 'Limits::check_dimensions', 'ImageReader::set_format', 'ImageReader::require_format', 'image::load_from_memory_with_format']

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_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', 'tga::TgaDecoder::new', 'avif::AvifDecoder::new', 'ColorMap::get', 'FarbfeldDecoder::new', 'dav1d::Decoder::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', 'Frame::clone', 'Limits::check_dimensions', 'ImageDecoder::total_bytes', 'OpenExrDecoder::with_alpha_preference', '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', 'err_unknown_color_type', 'Frame::clone', 'DX10Header::validate', 'gcd', 'ImageReader::make_decoder', 'ColorType::channel_count', 'Limits::check_dimensions']

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	32	5	15.62%
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	25	46.29%

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

Directories in report

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

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