High level conclusions

Fuzzer fuzzer_script_guess is blocked:

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

Fuzzer fuzzer_script_jpeg is blocked:

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

Fuzzer fuzzer_script_webp is blocked:

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

Fuzzer fuzzer_script_tiff is blocked:

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

Fuzzer fuzzer_script_png is blocked:

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

Fuzzer fuzzer_script_ico is blocked:

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

Fuzzer fuzzer_script_hdr is blocked:

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

Fuzzer fuzzer_script_pnm is blocked:

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

Fuzzer fuzzer_script_bmp is blocked:

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

Fuzzer fuzzer_script_gif is blocked:

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

Fuzzers reach 0.551% of cyclomatic complexity.

Fuzzers reach 0.344% of all functions.

Reachability and coverage overview

Functions statically reachable by fuzzers

5 / 1452

Cyclomatic complexity statically reachable by fuzzers

11 / 1996

Runtime code coverage of functions

538 / 1452

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	1533	97.7%
gold	[1:9]	0	0.0%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	36	2.29%
All colors	1569	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
632	520	tiff::TiffDecoder::new	call site: 00520	BmpDecoder::read_metadata
340	1159	ImageReader::make_decoder	call site: 01159	HdrDecoder::with_strictness
231	65	ImageBuffer::inner_pixels_mut	call site: 00065	tests::test_image_outside_image_no_wrap_around
74	297	Box::read_image	call site: 00297	TgaDecoder::expand_color_map
54	427	ImageReader::make_decoder	call site: 00427	ImageReader::into_dimensions
47	8	ImageReader::make_decoder	call site: 00008	TgaDecoder::expand_color_map
36	389	Limits::check_dimensions	call site: 00389
22	1500	pcx::PCXDecoder::new	call site: 01500
20	1548	ImageReader::set_format	call site: 01548	ImageDecoder::set_limits
16	372	Limits::check_support	call site: 00372	Limits::check_dimensions
13	1534	ImageDecoder::set_limits	call site: 01534	TgaDecoder::expand_color_map
12	494	jpeg::JpegDecoder::new	call site: 00494

Runtime coverage analysis

Covered functions

169

Functions that are reachable but not covered

2

Reachable functions

2

Percentage of reachable functions covered

0.0%

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

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

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
fuzz/fuzzers/fuzzer_script_gif.rs	2
src/images/dynimage.rs	3
src/error.rs	109
src/codecs/avif/encoder.rs	5
src/io/image_reader_type.rs	33
src/io/limits.rs	5
src/traits.rs	10
src/io/free_functions.rs	14
src/io/decoder.rs	11
src/codecs/tga/decoder.rs	14
src/images/buffer.rs	13
src/images/buffer_par.rs	1
src/animation.rs	17
src/codecs/farbfeld.rs	30
src/color.rs	12
src/imageops/fast_blur.rs	7
src/imageops/mod.rs	17
src/images/generic_image.rs	8
src/images/flat.rs	2
src/codecs/avif/decoder.rs	8
src/codecs/png.rs	20
src/codecs/pcx.rs	7
src/codecs/hdr/decoder.rs	55
src/codecs/tiff.rs	16
src/codecs/dds.rs	11
src/io.rs	10
src/codecs/openexr.rs	15
src/utils/mod.rs	4
src/codecs/bmp/decoder.rs	50
src/imageops/sample.rs	24
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_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	1388	88.4%
gold	[1:9]	40	2.54%
yellow	[10:29]	13	0.82%
greenyellow	[30:49]	14	0.89%
lawngreen	50+	114	7.26%
All colors	1569	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
351	1171	ImageReader::make_decoder	call site: 01171	HdrDecoder::with_strictness
311	60	ImageBuffer::image_buffer_len	call site: 00060	tests::test_image_outside_image_no_wrap_around
181	474	zune_core::options::DecoderOptions::default	call site: 00474	Header::from_reader
109	973	BmpDecoder::read_palette	call site: 00973	vertical_sample
84	389	Limits::check_dimensions	call site: 00389	ImageReader::into_dimensions
82	669	R::read_exact_vec	call site: 00669	Header::from_reader
47	1105	bmp::BmpDecoder::new	call site: 01105	ImageReader::make_decoder
41	919	BmpDecoder::read_metadata	call site: 00919	FarbfeldReader::seek
35	20	Limits::default	call site: 00020	TgaDecoder::expand_color_map
24	1523	ImageReader::require_format	call site: 01523	ImageDecoder::set_limits
22	794	check_for_overflow	call site: 00794
20	1548	ImageReader::set_format	call site: 01548	ImageDecoder::set_limits

Runtime coverage analysis

Covered functions

112

Functions that are reachable but not covered

2

Reachable functions

2

Percentage of reachable functions covered

0.0%

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

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

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
fuzz/fuzzers/fuzzer_script_bmp.rs	2
src/images/dynimage.rs	3
src/error.rs	109
src/codecs/avif/encoder.rs	5
src/io/image_reader_type.rs	33
src/io/limits.rs	5
src/traits.rs	10
src/io/free_functions.rs	14
src/io/decoder.rs	11
src/codecs/tga/decoder.rs	14
src/images/buffer.rs	13
src/images/buffer_par.rs	1
src/animation.rs	17
src/codecs/farbfeld.rs	30
src/color.rs	12
src/imageops/fast_blur.rs	7
src/imageops/mod.rs	17
src/images/generic_image.rs	8
src/images/flat.rs	2
src/codecs/avif/decoder.rs	8
src/codecs/png.rs	20
src/codecs/pcx.rs	7
src/codecs/hdr/decoder.rs	55
src/codecs/tiff.rs	16
src/codecs/dds.rs	11
src/io.rs	10
src/codecs/openexr.rs	15
src/utils/mod.rs	4
src/codecs/bmp/decoder.rs	50
src/imageops/sample.rs	24
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	1495	95.2%
gold	[1:9]	10	0.63%
yellow	[10:29]	3	0.19%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	61	3.88%
All colors	1569	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
419	733	crate::utils::check_dimension_overflow	call site: 00733	BmpDecoder::read_metadata
311	60	ImageBuffer::image_buffer_len	call site: 00060	tests::test_image_outside_image_no_wrap_around
239	1153	ImageReader::make_decoder	call site: 01153	HdrDecoder::with_strictness
181	474	zune_core::options::DecoderOptions::default	call site: 00474	Header::from_reader
84	389	Limits::check_dimensions	call site: 00389	ImageReader::into_dimensions
52	1457	pnm::PnmDecoder::new	call site: 01457	FarbfeldReader::new
35	20	Limits::default	call site: 00020	TgaDecoder::expand_color_map
25	692	dds::DdsDecoder::new	call site: 00692	DX10Header::validate
24	1523	ImageReader::require_format	call site: 01523	ImageDecoder::set_limits
22	669	R::read_exact_vec	call site: 00669	Header::from_reader
20	1548	ImageReader::set_format	call site: 01548	ImageDecoder::set_limits
14	374	crate::LimitSupport::default	call site: 00374	Limits::check_dimensions

Runtime coverage analysis

Covered functions

147

Functions that are reachable but not covered

2

Reachable functions

2

Percentage of reachable functions covered

0.0%

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

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

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
fuzz/fuzzers/fuzzer_script_pnm.rs	2
src/images/dynimage.rs	3
src/error.rs	109
src/codecs/avif/encoder.rs	5
src/io/image_reader_type.rs	33
src/io/limits.rs	5
src/traits.rs	10
src/io/free_functions.rs	14
src/io/decoder.rs	11
src/codecs/tga/decoder.rs	14
src/images/buffer.rs	13
src/images/buffer_par.rs	1
src/animation.rs	17
src/codecs/farbfeld.rs	30
src/color.rs	12
src/imageops/fast_blur.rs	7
src/imageops/mod.rs	17
src/images/generic_image.rs	8
src/images/flat.rs	2
src/codecs/avif/decoder.rs	8
src/codecs/png.rs	20
src/codecs/pcx.rs	7
src/codecs/hdr/decoder.rs	55
src/codecs/tiff.rs	16
src/codecs/dds.rs	11
src/io.rs	10
src/codecs/openexr.rs	15
src/utils/mod.rs	4
src/codecs/bmp/decoder.rs	50
src/imageops/sample.rs	24
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	1573	97.8%
gold	[1:9]	0	0.0%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	34	2.11%
All colors	1607	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
413	735	dds::DdsDecoder::new	call site: 00735	BmpDecoder::read_metadata
345	31	ImageBuffer::inner_pixels	call site: 00031	tests::test_image_outside_image_no_wrap_around
293	1159	ImageReader::make_decoder	call site: 01159	HdrDecoder::with_strictness
227	494	ImageReader::make_decoder	call site: 00494	Header::from_reader
98	394	Limits::check_dimensions	call site: 00394	TgaDecoder::expand_color_map
65	1453	pnm::PnmDecoder::new	call site: 01453	FarbfeldReader::new
31	1555	ImageBuffer::from_raw	call site: 01555	Header::write_to
30	1519	ImageReader::require_format	call site: 01519	ImageDecoder::set_limits
19	1587	ImageReader::set_format	call site: 01587	ImageDecoder::set_limits
16	377	Limits::check_support	call site: 00377	Limits::check_dimensions
9	20	ImageBuffer::image_buffer_len	call site: 00020
8	1149	ImageReader::make_decoder	call site: 01149

Runtime coverage analysis

Covered functions

141

Functions that are reachable but not covered

8

Reachable functions

16

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/roundtrip_webp.rs	11
src/codecs/hdr/decoder.rs	55
src/color.rs	12
src/codecs/avif/encoder.rs	8
src/io/image_reader_type.rs	33
src/error.rs	109
src/images/buffer.rs	15
src/images/buffer_par.rs	1
src/codecs/farbfeld.rs	30
src/traits.rs	10
src/io/limits.rs	5
src/io/free_functions.rs	14
src/io/decoder.rs	11
src/codecs/tga/decoder.rs	14
src/animation.rs	17
src/imageops/fast_blur.rs	7
src/imageops/mod.rs	17
src/images/generic_image.rs	8
src/images/flat.rs	2
src/codecs/avif/decoder.rs	8
src/codecs/png.rs	20
src/codecs/pcx.rs	7
src/codecs/tiff.rs	16
src/codecs/dds.rs	11
src/io.rs	10
src/codecs/openexr.rs	15
src/utils/mod.rs	4
src/codecs/bmp/decoder.rs	50
src/imageops/sample.rs	24
src/codecs/ico/decoder.rs	14
src/codecs/pnm/decoder.rs	11
src/codecs/tga/header.rs	3
src/images/dynimage.rs	3
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	1388	88.4%
gold	[1:9]	23	1.46%
yellow	[10:29]	4	0.25%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	154	9.81%
All colors	1569	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
419	733	crate::utils::check_dimension_overflow	call site: 00733	BmpDecoder::read_metadata
200	171	ImageDecoder::total_bytes	call site: 00171	tests::test_image_outside_image_no_wrap_around
197	474	zune_core::options::DecoderOptions::default	call site: 00474	Header::from_reader
120	1322	HdrDecoder::with_strictness	call site: 01322	Delay::closest_bounded_fraction
90	60	ImageBuffer::image_buffer_len	call site: 00060	TgaDecoder::expand_color_map
60	1445	utils::check_dimension_overflow	call site: 01445	FarbfeldReader::new
58	389	Limits::check_dimensions	call site: 00389	PCXReader::read_to_end
57	673	tga::TgaDecoder::new	call site: 00673	Header::from_reader
29	20	Limits::default	call site: 00020	Enlargeable::clamp_from
20	1153	ImageReader::make_decoder	call site: 01153
20	1548	ImageReader::set_format	call site: 01548	ImageDecoder::set_limits
15	1507	ImageReader::make_decoder	call site: 01507

Runtime coverage analysis

Covered functions

84

Functions that are reachable but not covered

2

Reachable functions

2

Percentage of reachable functions covered

0.0%

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

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

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
fuzz/fuzzers/fuzzer_script_hdr.rs	2
src/images/dynimage.rs	3
src/error.rs	109
src/codecs/avif/encoder.rs	5
src/io/image_reader_type.rs	33
src/io/limits.rs	5
src/traits.rs	10
src/io/free_functions.rs	14
src/io/decoder.rs	11
src/codecs/tga/decoder.rs	14
src/images/buffer.rs	13
src/images/buffer_par.rs	1
src/animation.rs	17
src/codecs/farbfeld.rs	30
src/color.rs	12
src/imageops/fast_blur.rs	7
src/imageops/mod.rs	17
src/images/generic_image.rs	8
src/images/flat.rs	2
src/codecs/avif/decoder.rs	8
src/codecs/png.rs	20
src/codecs/pcx.rs	7
src/codecs/hdr/decoder.rs	55
src/codecs/tiff.rs	16
src/codecs/dds.rs	11
src/io.rs	10
src/codecs/openexr.rs	15
src/utils/mod.rs	4
src/codecs/bmp/decoder.rs	50
src/imageops/sample.rs	24
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	1368	87.1%
gold	[1:9]	37	2.35%
yellow	[10:29]	18	1.14%
greenyellow	[30:49]	7	0.44%
lawngreen	50+	139	8.85%
All colors	1569	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
311	1173	ImageReader::make_decoder	call site: 01173	HdrDecoder::with_strictness
200	171	ImageDecoder::total_bytes	call site: 00171	tests::test_image_outside_image_no_wrap_around
197	458	::std::io::Result::channel_count	call site: 00458	Header::from_reader
109	973	BmpDecoder::read_palette	call site: 00973	vertical_sample
90	60	ImageBuffer::image_buffer_len	call site: 00060	TgaDecoder::expand_color_map
86	669	R::read_exact_vec	call site: 00669	BmpDecoder::read_metadata
60	389	Limits::check_dimensions	call site: 00389	PCXReader::read_to_end
41	8	ImageReader::make_decoder	call site: 00008	Enlargeable::clamp_from
41	919	BmpDecoder::read_metadata	call site: 00919	FarbfeldReader::seek
37	1485	FarbfeldReader::new	call site: 01485	Enlargeable::clamp_from
22	794	check_for_overflow	call site: 00794
21	1107	ImageReader::make_decoder	call site: 01107	read_entries

Runtime coverage analysis

Covered functions

342

Functions that are reachable but not covered

2

Reachable functions

2

Percentage of reachable functions covered

0.0%

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

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

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
fuzz/fuzzers/fuzzer_script_ico.rs	2
src/images/dynimage.rs	3
src/error.rs	109
src/codecs/avif/encoder.rs	5
src/io/image_reader_type.rs	33
src/io/limits.rs	5
src/traits.rs	10
src/io/free_functions.rs	14
src/io/decoder.rs	11
src/codecs/tga/decoder.rs	14
src/images/buffer.rs	13
src/images/buffer_par.rs	1
src/animation.rs	17
src/codecs/farbfeld.rs	30
src/color.rs	12
src/imageops/fast_blur.rs	7
src/imageops/mod.rs	17
src/images/generic_image.rs	8
src/images/flat.rs	2
src/codecs/avif/decoder.rs	8
src/codecs/png.rs	20
src/codecs/pcx.rs	7
src/codecs/hdr/decoder.rs	55
src/codecs/tiff.rs	16
src/codecs/dds.rs	11
src/io.rs	10
src/codecs/openexr.rs	15
src/utils/mod.rs	4
src/codecs/bmp/decoder.rs	50
src/imageops/sample.rs	24
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	1548	98.6%
gold	[1:9]	0	0.0%
yellow	[10:29]	5	0.31%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	16	1.01%
All colors	1569	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	458	::std::io::Result::channel_count	call site: 00458	BmpDecoder::read_metadata
327	1157	ImageReader::make_decoder	call site: 01157	HdrDecoder::with_strictness
308	60	ImageBuffer::image_buffer_len	call site: 00060	tests::test_image_outside_image_no_wrap_around
60	389	Limits::check_dimensions	call site: 00389	PCXReader::read_to_end
47	8	ImageReader::make_decoder	call site: 00008	TgaDecoder::expand_color_map
37	1485	FarbfeldReader::new	call site: 01485	Enlargeable::clamp_from
24	1523	ImageReader::require_format	call site: 01523	ImageDecoder::set_limits
20	1548	ImageReader::set_format	call site: 01548	ImageDecoder::set_limits
16	372	Limits::check_support	call site: 00372	Limits::check_dimensions
7	0	EP	call site: 00000	ImageReader::make_decoder
5	450	ColorType::channel_count	call site: 00450	ImageReader::into_dimensions
2	1153	ImageReader::make_decoder	call site: 01153

Runtime coverage analysis

Covered functions

311

Functions that are reachable but not covered

2

Reachable functions

2

Percentage of reachable functions covered

0.0%

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

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

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
fuzz/fuzzers/fuzzer_script_png.rs	2
src/images/dynimage.rs	3
src/error.rs	109
src/codecs/avif/encoder.rs	5
src/io/image_reader_type.rs	33
src/io/limits.rs	5
src/traits.rs	10
src/io/free_functions.rs	14
src/io/decoder.rs	11
src/codecs/tga/decoder.rs	14
src/images/buffer.rs	13
src/images/buffer_par.rs	1
src/animation.rs	17
src/codecs/farbfeld.rs	30
src/color.rs	12
src/imageops/fast_blur.rs	7
src/imageops/mod.rs	17
src/images/generic_image.rs	8
src/images/flat.rs	2
src/codecs/avif/decoder.rs	8
src/codecs/png.rs	20
src/codecs/pcx.rs	7
src/codecs/hdr/decoder.rs	55
src/codecs/tiff.rs	16
src/codecs/dds.rs	11
src/io.rs	10
src/codecs/openexr.rs	15
src/utils/mod.rs	4
src/codecs/bmp/decoder.rs	50
src/imageops/sample.rs	24
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	1524	97.1%
gold	[1:9]	14	0.89%
yellow	[10:29]	5	0.31%
greenyellow	[30:49]	2	0.12%
lawngreen	50+	24	1.52%
All colors	1569	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
576	576	err_unknown_color_type	call site: 00576	BmpDecoder::read_metadata
357	1165	ImageReader::make_decoder	call site: 01165	HdrDecoder::with_strictness
200	171	ImageDecoder::total_bytes	call site: 00171	tests::test_image_outside_image_no_wrap_around
115	389	Limits::check_dimensions	call site: 00389	TgaDecoder::expand_color_map
90	60	ImageBuffer::image_buffer_len	call site: 00060	TgaDecoder::expand_color_map
41	8	ImageReader::make_decoder	call site: 00008	Enlargeable::clamp_from
24	1523	ImageReader::require_format	call site: 01523	ImageDecoder::set_limits
23	548	ImageError::from_tiff_decode	call site: 00548	TgaDecoder::expand_color_map
20	1548	ImageReader::set_format	call site: 01548	ImageDecoder::set_limits
18	506	ImageReader::make_decoder	call site: 00506	TgaDecoder::expand_color_map
16	372	Limits::check_support	call site: 00372	Limits::check_dimensions
10	1153	ImageReader::make_decoder	call site: 01153

Runtime coverage analysis

Covered functions

558

Functions that are reachable but not covered

2

Reachable functions

2

Percentage of reachable functions covered

0.0%

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

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

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
fuzz/fuzzers/fuzzer_script_tiff.rs	2
src/images/dynimage.rs	3
src/error.rs	109
src/codecs/avif/encoder.rs	5
src/io/image_reader_type.rs	33
src/io/limits.rs	5
src/traits.rs	10
src/io/free_functions.rs	14
src/io/decoder.rs	11
src/codecs/tga/decoder.rs	14
src/images/buffer.rs	13
src/images/buffer_par.rs	1
src/animation.rs	17
src/codecs/farbfeld.rs	30
src/color.rs	12
src/imageops/fast_blur.rs	7
src/imageops/mod.rs	17
src/images/generic_image.rs	8
src/images/flat.rs	2
src/codecs/avif/decoder.rs	8
src/codecs/png.rs	20
src/codecs/pcx.rs	7
src/codecs/hdr/decoder.rs	55
src/codecs/tiff.rs	16
src/codecs/dds.rs	11
src/io.rs	10
src/codecs/openexr.rs	15
src/utils/mod.rs	4
src/codecs/bmp/decoder.rs	50
src/imageops/sample.rs	24
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_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	1531	97.5%
gold	[1:9]	0	0.0%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	38	2.42%
All colors	1569	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
413	739	dds::DdsDecoder::new	call site: 00739	BmpDecoder::read_metadata
293	1163	ImageReader::make_decoder	call site: 01163	HdrDecoder::with_strictness
227	498	ImageReader::make_decoder	call site: 00498	Header::from_reader
200	171	ImageDecoder::total_bytes	call site: 00171	tests::test_image_outside_image_no_wrap_around
107	389	Limits::check_dimensions	call site: 00389	TgaDecoder::expand_color_map
90	60	ImageBuffer::image_buffer_len	call site: 00060	TgaDecoder::expand_color_map
65	1457	pnm::PnmDecoder::new	call site: 01457	FarbfeldReader::new
41	8	ImageReader::make_decoder	call site: 00008	Enlargeable::clamp_from
20	1548	ImageReader::set_format	call site: 01548	ImageDecoder::set_limits
16	372	Limits::check_support	call site: 00372	Limits::check_dimensions
13	1534	ImageDecoder::set_limits	call site: 01534	TgaDecoder::expand_color_map
8	151	ImageDecoder::total_bytes	call site: 00151	Enlargeable::clamp_from

Runtime coverage analysis

Covered functions

312

Functions that are reachable but not covered

2

Reachable functions

2

Percentage of reachable functions covered

0.0%

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

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

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
fuzz/fuzzers/fuzzer_script_webp.rs	2
src/images/dynimage.rs	3
src/error.rs	109
src/codecs/avif/encoder.rs	5
src/io/image_reader_type.rs	33
src/io/limits.rs	5
src/traits.rs	10
src/io/free_functions.rs	14
src/io/decoder.rs	11
src/codecs/tga/decoder.rs	14
src/images/buffer.rs	13
src/images/buffer_par.rs	1
src/animation.rs	17
src/codecs/farbfeld.rs	30
src/color.rs	12
src/imageops/fast_blur.rs	7
src/imageops/mod.rs	17
src/images/generic_image.rs	8
src/images/flat.rs	2
src/codecs/avif/decoder.rs	8
src/codecs/png.rs	20
src/codecs/pcx.rs	7
src/codecs/hdr/decoder.rs	55
src/codecs/tiff.rs	16
src/codecs/dds.rs	11
src/io.rs	10
src/codecs/openexr.rs	15
src/utils/mod.rs	4
src/codecs/bmp/decoder.rs	50
src/imageops/sample.rs	24
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	1531	97.5%
gold	[1:9]	0	0.0%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	38	2.42%
All colors	1569	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	558	tiff::TiffDecoder::new	call site: 00558	BmpDecoder::read_metadata
309	1161	ImageReader::make_decoder	call site: 01161	HdrDecoder::with_strictness
200	171	ImageDecoder::total_bytes	call site: 00171	tests::test_image_outside_image_no_wrap_around
118	437	ImageReader::make_decoder	call site: 00437	TgaDecoder::expand_color_map
90	60	ImageBuffer::image_buffer_len	call site: 00060	TgaDecoder::expand_color_map
43	1479	FarbfeldReader::new	call site: 01479	Enlargeable::clamp_from
41	8	ImageReader::make_decoder	call site: 00008	Enlargeable::clamp_from
41	389	Limits::check_dimensions	call site: 00389
24	1523	ImageReader::require_format	call site: 01523	ImageDecoder::set_limits
16	372	Limits::check_support	call site: 00372	Limits::check_dimensions
12	1556	GifDecoder::new	call site: 01556	ImageDecoder::set_limits
8	151	ImageDecoder::total_bytes	call site: 00151	Enlargeable::clamp_from

Runtime coverage analysis

Covered functions

207

Functions that are reachable but not covered

2

Reachable functions

2

Percentage of reachable functions covered

0.0%

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

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

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
fuzz/fuzzers/fuzzer_script_jpeg.rs	2
src/images/dynimage.rs	3
src/error.rs	109
src/codecs/avif/encoder.rs	5
src/io/image_reader_type.rs	33
src/io/limits.rs	5
src/traits.rs	10
src/io/free_functions.rs	14
src/io/decoder.rs	11
src/codecs/tga/decoder.rs	14
src/images/buffer.rs	13
src/images/buffer_par.rs	1
src/animation.rs	17
src/codecs/farbfeld.rs	30
src/color.rs	12
src/imageops/fast_blur.rs	7
src/imageops/mod.rs	17
src/images/generic_image.rs	8
src/images/flat.rs	2
src/codecs/avif/decoder.rs	8
src/codecs/png.rs	20
src/codecs/pcx.rs	7
src/codecs/hdr/decoder.rs	55
src/codecs/tiff.rs	16
src/codecs/dds.rs	11
src/io.rs	10
src/codecs/openexr.rs	15
src/utils/mod.rs	4
src/codecs/bmp/decoder.rs	50
src/imageops/sample.rs	24
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	1335	83.3%
gold	[1:9]	33	2.06%
yellow	[10:29]	35	2.18%
greenyellow	[30:49]	29	1.81%
lawngreen	50+	169	10.5%
All colors	1601	100

Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked	Calltree index	Parent function	Callsite	Largest blocked function
359	823	TgaDecoder::expand_color_map	call site: 00823	BmpDecoder::read_bitmap_info_header
283	1183	hdr::HdrDecoder::new	call site: 01183	HdrMetadata::update_header_info
201	388	avif::AvifDecoder::new	call site: 00388	TgaDecoder::expand_color_map
133	191	ImageDecoder::total_bytes	call site: 00191	tests::test_image_outside_image_no_wrap_around
81	24	image::codecs::tga::TgaDecoder::new	call site: 00024	ImageReader::make_decoder
54	692	tga::TgaDecoder::new	call site: 00692	Header::from_reader
51	750	DxtDecoder::new	call site: 00750	BmpDecoder::read_metadata
36	1512	ico::IcoDecoder::new	call site: 01512	ImageDecoder::set_limits
24	1468	farbfeld::FarbfeldDecoder::new	call site: 01468	F::a::r::b::f::e::l::d::R::e::a::d::e::r::::::::n::e::w::read_dimm
18	1493	FarbfeldReader::new	call site: 01493	Enlargeable::clamp_from
15	108	pcx::Reader::new	call site: 00108	Enlargeable::clamp_from
11	340	avif::AvifDecoder::new	call site: 00340

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	108
src/codecs/dds.rs	11
src/codecs/avif/encoder.rs	5
src/io/image_reader_type.rs	32
src/images/buffer.rs	13
src/images/buffer_par.rs	1
src/codecs/farbfeld.rs	30
src/color.rs	12
src/traits.rs	10
src/io/limits.rs	5
src/io/free_functions.rs	11
src/io/decoder.rs	11
src/codecs/tga/decoder.rs	14
src/animation.rs	17
src/imageops/fast_blur.rs	7
src/imageops/mod.rs	17
src/images/generic_image.rs	8
src/images/flat.rs	2
src/codecs/avif/decoder.rs	8
src/codecs/png.rs	20
src/codecs/pcx.rs	7
src/codecs/hdr/decoder.rs	55
src/codecs/tiff.rs	16
src/io.rs	10
src/codecs/openexr.rs	15
src/utils/mod.rs	4
src/codecs/bmp/decoder.rs	50
src/imageops/sample.rs	24
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	1572	96.5%
gold	[1:9]	0	0.0%
yellow	[10:29]	48	2.94%
greenyellow	[30:49]	6	0.36%
lawngreen	50+	2	0.12%
All colors	1628	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
658	692	to_image_err	call site: 00692	BmpDecoder::read_metadata
205	483	::std::io::Result::channel_count	call site: 00483	Header::from_reader
135	1377	OpenExrDecoder::with_alpha_preference	call site: 01377	FarbfeldReader::new
125	196	ImageDecoder::total_bytes	call site: 00196	tests::test_image_outside_image_no_wrap_around
114	26	OpenExrDecoder::with_alpha_preference	call site: 00026	ImageReader::make_decoder
74	322	Box::read_image	call site: 00322	TgaDecoder::expand_color_map
60	414	Limits::check_dimensions	call site: 00414	PCXReader::read_to_end
42	141	ImageDecoder::total_bytes	call site: 00141	TgaDecoder::expand_color_map
37	1586	roundtrip	call site: 01586	write_buffer
31	1519	ImageDecoder::set_limits	call site: 01519	Delay::closest_bounded_fraction
18	7	OpenExrDecoder::with_alpha_preference	call site: 00007
16	397	Limits::check_support	call site: 00397	Limits::check_dimensions

Runtime coverage analysis

Covered functions

1283

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	34
src/images/buffer.rs	13
src/error.rs	108
src/images/buffer_par.rs	1
src/animation.rs	17
src/traits.rs	10
src/codecs/avif/encoder.rs	5
src/io/image_reader_type.rs	32
src/codecs/farbfeld.rs	30
src/color.rs	15
src/io/limits.rs	5
src/io/free_functions.rs	11
src/io/decoder.rs	11
src/codecs/tga/decoder.rs	14
src/imageops/fast_blur.rs	7
src/imageops/mod.rs	17
src/images/generic_image.rs	8
src/images/flat.rs	2
src/codecs/avif/decoder.rs	8
src/codecs/png.rs	20
src/codecs/pcx.rs	7
src/codecs/hdr/decoder.rs	55
src/codecs/tiff.rs	16
src/codecs/dds.rs	11
src/io.rs	10
src/utils/mod.rs	4
src/codecs/bmp/decoder.rs	50
src/imageops/sample.rs	24
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	1239	76.0%
gold	[1:9]	73	4.47%
yellow	[10:29]	67	4.11%
greenyellow	[30:49]	10	0.61%
lawngreen	50+	241	14.7%
All colors	1630	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
197	176	ImageDecoder::total_bytes	call site: 00176	tests::test_image_outside_image_no_wrap_around
109	978	BmpDecoder::read_palette	call site: 00978	vertical_sample
85	70	ImageBuffer::inner_pixels_mut	call site: 00070	TgaDecoder::expand_color_map
79	581	err_unknown_color_type	call site: 00581	Header::from_reader
48	1340	OpenExrDecoder::with_alpha_preference	call site: 01340	Delay::closest_bounded_fraction
45	1402	HeaderReader::read_magic_constant	call site: 01402	PnmDecoder::read_graymap_header
41	13	ImageReader::make_decoder	call site: 00013	Enlargeable::clamp_from
41	924	BmpDecoder::read_metadata	call site: 00924	FarbfeldReader::seek
38	463	::std::io::Result::channel_count	call site: 00463	TgaDecoder::expand_color_map
36	394	Limits::check_dimensions	call site: 00394
30	856	BmpDecoder::read_bitmap_info_header	call site: 00856
25	1464	ImageReader::make_decoder	call site: 01464	FarbfeldReader::new

Runtime coverage analysis

Covered functions

2306

Functions that are reachable but not covered

2

Reachable functions

2

Percentage of reachable functions covered

0.0%

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

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

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
fuzz/fuzzers/fuzzer_script_guess.rs	2
src/images/dynimage.rs	6
src/io/image_reader_type.rs	40
src/error.rs	109
src/codecs/avif/encoder.rs	5
src/io/limits.rs	5
src/traits.rs	10
src/io/free_functions.rs	24
src/io/decoder.rs	11
src/codecs/tga/decoder.rs	14
src/images/buffer.rs	13
src/images/buffer_par.rs	1
src/animation.rs	17
src/codecs/farbfeld.rs	30
src/color.rs	12
src/imageops/fast_blur.rs	7
src/imageops/mod.rs	17
src/images/generic_image.rs	8
src/images/flat.rs	2
src/codecs/avif/decoder.rs	8
src/codecs/png.rs	20
src/codecs/pcx.rs	7
src/codecs/hdr/decoder.rs	55
src/codecs/tiff.rs	16
src/codecs/dds.rs	11
src/io.rs	10
src/codecs/openexr.rs	15
src/utils/mod.rs	4
src/codecs/bmp/decoder.rs	50
src/imageops/sample.rs	24
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 / 1452

Cyclomatic complexity statically reachable by fuzzers

11 / 1996

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=['tiff::TiffDecoder::new', 'ImageReader::make_decoder', 'ImageBuffer::inner_pixels_mut', 'Box::read_image', 'Limits::check_dimensions', 'pcx::PCXDecoder::new', 'ImageReader::set_format', 'Limits::check_support']

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', 'ImageBuffer::image_buffer_len', 'zune_core::options::DecoderOptions::default', 'BmpDecoder::read_palette', 'Limits::check_dimensions', 'R::read_exact_vec', 'bmp::BmpDecoder::new', 'BmpDecoder::read_metadata', 'Limits::default', 'ImageReader::require_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=['crate::utils::check_dimension_overflow', 'ImageBuffer::image_buffer_len', 'ImageReader::make_decoder', 'zune_core::options::DecoderOptions::default', 'Limits::check_dimensions', 'pnm::PnmDecoder::new', 'Limits::default', 'dds::DdsDecoder::new', 'ImageReader::require_format', 'R::read_exact_vec']

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=['dds::DdsDecoder::new', 'ImageBuffer::inner_pixels', 'ImageReader::make_decoder', 'Limits::check_dimensions', 'pnm::PnmDecoder::new', 'ImageBuffer::from_raw', 'ImageReader::require_format', 'ImageReader::set_format', 'Limits::check_support']

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=['crate::utils::check_dimension_overflow', 'ImageDecoder::total_bytes', 'zune_core::options::DecoderOptions::default', 'HdrDecoder::with_strictness', 'ImageBuffer::image_buffer_len', 'utils::check_dimension_overflow', 'Limits::check_dimensions', 'tga::TgaDecoder::new', 'Limits::default', 'ImageReader::make_decoder']

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', 'ImageDecoder::total_bytes', '::std::io::Result::channel_count', 'BmpDecoder::read_palette', 'ImageBuffer::image_buffer_len', 'R::read_exact_vec', 'Limits::check_dimensions', 'BmpDecoder::read_metadata', 'FarbfeldReader::new']

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', 'ImageBuffer::image_buffer_len', 'Limits::check_dimensions', 'FarbfeldReader::new', 'ImageReader::require_format', 'ImageReader::set_format', 'Limits::check_support']

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', 'ImageDecoder::total_bytes', 'Limits::check_dimensions', 'ImageBuffer::image_buffer_len', 'ImageReader::require_format', 'ImageError::from_tiff_decode', '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=['dds::DdsDecoder::new', 'ImageReader::make_decoder', 'ImageDecoder::total_bytes', 'Limits::check_dimensions', 'ImageBuffer::image_buffer_len', 'pnm::PnmDecoder::new', 'ImageReader::set_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=['tiff::TiffDecoder::new', 'ImageReader::make_decoder', 'ImageDecoder::total_bytes', 'ImageBuffer::image_buffer_len', 'FarbfeldReader::new', 'Limits::check_dimensions', 'ImageReader::require_format', 'Limits::check_support']

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', 'avif::AvifDecoder::new', 'ImageDecoder::total_bytes', 'image::codecs::tga::TgaDecoder::new', 'tga::TgaDecoder::new', 'DxtDecoder::new', 'ico::IcoDecoder::new', 'farbfeld::FarbfeldDecoder::new', 'FarbfeldReader::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', '::std::io::Result::channel_count', 'OpenExrDecoder::with_alpha_preference', 'ImageDecoder::total_bytes', 'Box::read_image', 'Limits::check_dimensions', 'roundtrip', 'ImageDecoder::set_limits']

fuzz/fuzzers/fuzzer_script_guess.rs

Dictionary

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

Fuzzer function priority

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

-focus_function=['ImageDecoder::total_bytes', 'BmpDecoder::read_palette', 'ImageBuffer::inner_pixels_mut', 'err_unknown_color_type', 'OpenExrDecoder::with_alpha_preference', 'HeaderReader::read_magic_constant', 'ImageReader::make_decoder', 'BmpDecoder::read_metadata', '::std::io::Result::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
bytemuck::allocation::try_cast_vec::u8, u8	32	16	50.0%
image_webp::encoder::WebPEncoder&mut std::io::cursor::Cursoralloc::vec::Vecu8::encode	61	19	31.14%
tiff::decoder::Decoderstd::io::cursor::Cursor&[u8]::result_buffer	38	17	44.73%
zune_jpeg::decoder::JpegDecoderalloc::vec::Vecu8::post_process	98	36	36.73%
crossbeam_deque::deque::Workerrayon_core::job::JobRef::pop	73	12	16.43%
crossbeam_deque::deque::Stealerrayon_core::job::JobRef::steal	40	20	50.0%
exr::meta::attribute::AttributeValue::read::exr::io::Trackingstd::io::cursor::Cursoralloc::vec::Vecu8::{closure:#0}	50	20	40.0%
exr::compression::pxr24::decompress	51	12	23.52%
zune_inflate::decoder::DeflateDecoder::decode_zlib	73	9	12.32%
image::codecs::dds::DdsDecoderstd::io::cursor::Cursor&[u8]::new	55	26	47.27%

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

Directories in report

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

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