High level conclusions

Fuzzer fuzzer_script_exr is blocked:

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

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_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_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_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 0.512% of cyclomatic complexity.

Fuzzers reach 0.317% of all functions.

Reachability and coverage overview

Functions statically reachable by fuzzers

5 / 1575

Cyclomatic complexity statically reachable by fuzzers

11 / 2145

Runtime code coverage of functions

480 / 1575

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	1624	97.8%
gold	[1:9]	0	0.0%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	36	2.16%
All colors	1660	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
664	610	tiff::TiffDecoder::new	call site: 00610	BmpDecoder::read_metadata
256	245	ImageReader::make_decoder	call site: 00245	tests::test_image_outside_image_no_wrap_around
183	1281	ImageReader::make_decoder	call site: 01281	HdrDecoder::with_strictness
146	98	ImageBuffer::inner_pixels_mut	call site: 00098	Orientation::locate_orientation_entry
146	1466	gcd	call site: 01466	Delay::closest_bounded_fraction
87	0	EP	call site: 00000	ImageReader::make_decoder
36	519	Limits::check_dimensions	call site: 00519
24	557	ImageReader::make_decoder	call site: 00557
18	1641	ImageReader::set_format	call site: 01641	ImageDecoder::set_limits
17	1622	ImageDecoder::set_limits	call site: 01622	TgaDecoder::expand_color_map
16	502	Limits::check_support	call site: 00502	Limits::check_dimensions
12	594	jpeg::JpegDecoder::new	call site: 00594

Runtime coverage analysis

Covered functions

174

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	107
src/codecs/avif/encoder.rs	5
src/io/image_reader_type.rs	42
src/hooks.rs	14
src/images/flat.rs	2
src/codecs/tga/decoder.rs	15
src/metadata.rs	15
src/traits.rs	10
src/images/buffer.rs	14
src/images/buffer_par.rs	1
src/animation.rs	18
src/codecs/farbfeld.rs	9
src/color.rs	15
src/io/format.rs	2
src/utils/mod.rs	4
src/io/free_functions.rs	14
src/io/decoder.rs	10
src/imageops/fast_blur.rs	7
src/imageops/mod.rs	17
src/images/generic_image.rs	11
src/codecs/avif/decoder.rs	8
src/codecs/png.rs	21
src/io/limits.rs	5
src/codecs/tiff.rs	15
src/codecs/dds.rs	11
src/io.rs	10
src/codecs/hdr/decoder.rs	55
src/codecs/openexr.rs	15
src/codecs/bmp/decoder.rs	50
src/imageops/sample.rs	25
src/codecs/ico/decoder.rs	14
src/codecs/pnm/decoder.rs	11
tests/limits_anim.rs	6
src/codecs/gif.rs	3

Fuzzer: fuzzer_script_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	1465	88.2%
gold	[1:9]	40	2.40%
yellow	[10:29]	17	1.02%
greenyellow	[30:49]	11	0.66%
lawngreen	50+	127	7.65%
All colors	1660	100

Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked	Calltree index	Parent function	Callsite	Largest blocked function
319	1293	ImageReader::make_decoder	call site: 01293	HdrDecoder::with_strictness
188	575	zune_core::options::DecoderOptions::default	call site: 00575	Header::from_reader
177	324	ImageDecoder::total_bytes	call site: 00324	tests::test_image_outside_image_no_wrap_around
152	92	ImageBuffer::image_buffer_len	call site: 00092	Orientation::locate_orientation_entry
117	1065	BmpDecoder::read_palette	call site: 01065	vertical_sample
88	795	R::read_exact_vec	call site: 00795	Header::from_reader
87	0	EP	call site: 00000	ImageReader::make_decoder
69	1205	bmp::BmpDecoder::new	call site: 01205	ImageReader::make_decoder
56	245	ImageReader::make_decoder	call site: 00245	FarbfeldReader::new
55	519	Limits::check_dimensions	call site: 00519
22	926	check_for_overflow	call site: 00926	ColorMap::get
18	1641	ImageReader::set_format	call site: 01641	ImageDecoder::set_limits

Runtime coverage analysis

Covered functions

118

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	107
src/codecs/avif/encoder.rs	5
src/io/image_reader_type.rs	42
src/hooks.rs	14
src/images/flat.rs	2
src/codecs/tga/decoder.rs	15
src/metadata.rs	15
src/traits.rs	10
src/images/buffer.rs	14
src/images/buffer_par.rs	1
src/animation.rs	18
src/codecs/farbfeld.rs	9
src/color.rs	15
src/io/format.rs	2
src/utils/mod.rs	4
src/io/free_functions.rs	14
src/io/decoder.rs	10
src/imageops/fast_blur.rs	7
src/imageops/mod.rs	17
src/images/generic_image.rs	11
src/codecs/avif/decoder.rs	8
src/codecs/png.rs	21
src/io/limits.rs	5
src/codecs/tiff.rs	15
src/codecs/dds.rs	11
src/io.rs	10
src/codecs/hdr/decoder.rs	55
src/codecs/openexr.rs	15
src/codecs/bmp/decoder.rs	50
src/imageops/sample.rs	25
src/codecs/ico/decoder.rs	14
src/codecs/pnm/decoder.rs	11
tests/limits_anim.rs	6
src/codecs/gif.rs	3

Fuzzer: fuzzer_script_pnm

Call tree

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

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	1537	92.5%
gold	[1:9]	10	0.60%
yellow	[10:29]	4	0.24%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	109	6.56%
All colors	1660	100

Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked	Calltree index	Parent function	Callsite	Largest blocked function
405	869	dds::DdsDecoder::new	call site: 00869	BmpDecoder::read_metadata
244	1275	ImageReader::make_decoder	call site: 01275	HdrDecoder::with_strictness
188	575	zune_core::options::DecoderOptions::default	call site: 00575	Header::from_reader
177	324	ImageDecoder::total_bytes	call site: 00324	tests::test_image_outside_image_no_wrap_around
152	92	ImageBuffer::image_buffer_len	call site: 00092	Orientation::locate_orientation_entry
87	0	EP	call site: 00000	ImageReader::make_decoder
55	519	Limits::check_dimensions	call site: 00519
46	795	R::read_exact_vec	call site: 00795	Header::from_reader
30	245	ImageReader::make_decoder	call site: 00245	FarbfeldReader::new
23	278	crate::utils::check_dimension_overflow	call site: 00278	ExtendedColorType::color_type
18	1583	pnm::PnmDecoder::new	call site: 01583	FarbfeldReader::new
18	1641	ImageReader::set_format	call site: 01641	ImageDecoder::set_limits

Runtime coverage analysis

Covered functions

188

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	107
src/codecs/avif/encoder.rs	5
src/io/image_reader_type.rs	42
src/hooks.rs	14
src/images/flat.rs	2
src/codecs/tga/decoder.rs	15
src/metadata.rs	15
src/traits.rs	10
src/images/buffer.rs	14
src/images/buffer_par.rs	1
src/animation.rs	18
src/codecs/farbfeld.rs	9
src/color.rs	15
src/io/format.rs	2
src/utils/mod.rs	4
src/io/free_functions.rs	14
src/io/decoder.rs	10
src/imageops/fast_blur.rs	7
src/imageops/mod.rs	17
src/images/generic_image.rs	11
src/codecs/avif/decoder.rs	8
src/codecs/png.rs	21
src/io/limits.rs	5
src/codecs/tiff.rs	15
src/codecs/dds.rs	11
src/io.rs	10
src/codecs/hdr/decoder.rs	55
src/codecs/openexr.rs	15
src/codecs/bmp/decoder.rs	50
src/imageops/sample.rs	25
src/codecs/ico/decoder.rs	14
src/codecs/pnm/decoder.rs	11
tests/limits_anim.rs	6
src/codecs/gif.rs	3

Fuzzer: fuzzer_script_ico

Call tree

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

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	1457	87.7%
gold	[1:9]	41	2.46%
yellow	[10:29]	14	0.84%
greenyellow	[30:49]	5	0.30%
lawngreen	50+	143	8.61%
All colors	1660	100

Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked	Calltree index	Parent function	Callsite	Largest blocked function
317	1295	ImageReader::make_decoder	call site: 01295	HdrDecoder::with_strictness
244	519	Limits::check_dimensions	call site: 00519	Header::from_reader
177	324	ImageDecoder::total_bytes	call site: 00324	tests::test_image_outside_image_no_wrap_around
152	92	ImageBuffer::image_buffer_len	call site: 00092	Orientation::locate_orientation_entry
117	1065	BmpDecoder::read_palette	call site: 01065	vertical_sample
92	795	R::read_exact_vec	call site: 00795	BmpDecoder::read_metadata
87	0	EP	call site: 00000	ImageReader::make_decoder
37	245	ImageReader::make_decoder	call site: 00245	FarbfeldReader::new
22	926	check_for_overflow	call site: 00926	ColorMap::get
21	1207	ImageReader::make_decoder	call site: 01207	read_entries
18	283	FarbfeldReader::new	call site: 00283	ExtendedColorType::color_type
18	1275	ImageReader::make_decoder	call site: 01275

Runtime coverage analysis

Covered functions

369

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	107
src/codecs/avif/encoder.rs	5
src/io/image_reader_type.rs	42
src/hooks.rs	14
src/images/flat.rs	2
src/codecs/tga/decoder.rs	15
src/metadata.rs	15
src/traits.rs	10
src/images/buffer.rs	14
src/images/buffer_par.rs	1
src/animation.rs	18
src/codecs/farbfeld.rs	9
src/color.rs	15
src/io/format.rs	2
src/utils/mod.rs	4
src/io/free_functions.rs	14
src/io/decoder.rs	10
src/imageops/fast_blur.rs	7
src/imageops/mod.rs	17
src/images/generic_image.rs	11
src/codecs/avif/decoder.rs	8
src/codecs/png.rs	21
src/io/limits.rs	5
src/codecs/tiff.rs	15
src/codecs/dds.rs	11
src/io.rs	10
src/codecs/hdr/decoder.rs	55
src/codecs/openexr.rs	15
src/codecs/bmp/decoder.rs	50
src/imageops/sample.rs	25
src/codecs/ico/decoder.rs	14
src/codecs/pnm/decoder.rs	11
tests/limits_anim.rs	6
src/codecs/gif.rs	3

Fuzzer: fuzzer_script_png

Call tree

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

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	1630	98.1%
gold	[1:9]	0	0.0%
yellow	[10:29]	5	0.30%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	25	1.50%
All colors	1660	100

Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked	Calltree index	Parent function	Callsite	Largest blocked function
499	775	::std::io::Result::channel_count	call site: 00775	BmpDecoder::read_metadata
333	1279	ImageReader::make_decoder	call site: 01279	HdrDecoder::with_strictness
247	519	Limits::check_dimensions	call site: 00519	Header::from_reader
174	324	ImageDecoder::total_bytes	call site: 00324	tests::test_image_outside_image_no_wrap_around
152	92	ImageBuffer::image_buffer_len	call site: 00092	Orientation::locate_orientation_entry
87	0	EP	call site: 00000	ImageReader::make_decoder
37	245	ImageReader::make_decoder	call site: 00245	FarbfeldReader::new
24	1615	ImageReader::require_format	call site: 01615	ImageDecoder::set_limits
18	283	FarbfeldReader::new	call site: 00283	ExtendedColorType::color_type
18	1641	ImageReader::set_format	call site: 01641	ImageDecoder::set_limits
16	502	Limits::check_support	call site: 00502	Limits::check_dimensions
10	312	ImageDecoder::total_bytes	call site: 00312

Runtime coverage analysis

Covered functions

357

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	107
src/codecs/avif/encoder.rs	5
src/io/image_reader_type.rs	42
src/hooks.rs	14
src/images/flat.rs	2
src/codecs/tga/decoder.rs	15
src/metadata.rs	15
src/traits.rs	10
src/images/buffer.rs	14
src/images/buffer_par.rs	1
src/animation.rs	18
src/codecs/farbfeld.rs	9
src/color.rs	15
src/io/format.rs	2
src/utils/mod.rs	4
src/io/free_functions.rs	14
src/io/decoder.rs	10
src/imageops/fast_blur.rs	7
src/imageops/mod.rs	17
src/images/generic_image.rs	11
src/codecs/avif/decoder.rs	8
src/codecs/png.rs	21
src/io/limits.rs	5
src/codecs/tiff.rs	15
src/codecs/dds.rs	11
src/io.rs	10
src/codecs/hdr/decoder.rs	55
src/codecs/openexr.rs	15
src/codecs/bmp/decoder.rs	50
src/imageops/sample.rs	25
src/codecs/ico/decoder.rs	14
src/codecs/pnm/decoder.rs	11
tests/limits_anim.rs	6
src/codecs/gif.rs	3

Fuzzer: fuzzer_script_tiff

Call tree

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

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	1610	96.9%
gold	[1:9]	16	0.96%
yellow	[10:29]	5	0.30%
greenyellow	[30:49]	2	0.12%
lawngreen	50+	27	1.62%
All colors	1660	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	680	err_unknown_color_type	call site: 00680	BmpDecoder::read_metadata
314	1298	hdr::HdrDecoder::new	call site: 01298	HdrMetadata::update_header_info
177	324	ImageDecoder::total_bytes	call site: 00324	tests::test_image_outside_image_no_wrap_around
152	92	ImageBuffer::image_buffer_len	call site: 00092	Orientation::locate_orientation_entry
87	0	EP	call site: 00000	ImageReader::make_decoder
85	519	Limits::check_dimensions	call site: 00519	TgaDecoder::expand_color_map
56	245	ImageReader::make_decoder	call site: 00245	FarbfeldReader::new
24	1615	ImageReader::require_format	call site: 01615	ImageDecoder::set_limits
23	606	ImageReader::make_decoder	call site: 00606	FarbfeldDecoder::new
23	652	ImageError::from_tiff_decode	call site: 00652	TgaDecoder::expand_color_map
18	1641	ImageReader::set_format	call site: 01641	ImageDecoder::set_limits
16	502	Limits::check_support	call site: 00502	Limits::check_dimensions

Runtime coverage analysis

Covered functions

632

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	107
src/codecs/avif/encoder.rs	5
src/io/image_reader_type.rs	42
src/hooks.rs	14
src/images/flat.rs	2
src/codecs/tga/decoder.rs	15
src/metadata.rs	15
src/traits.rs	10
src/images/buffer.rs	14
src/images/buffer_par.rs	1
src/animation.rs	18
src/codecs/farbfeld.rs	9
src/color.rs	15
src/io/format.rs	2
src/utils/mod.rs	4
src/io/free_functions.rs	14
src/io/decoder.rs	10
src/imageops/fast_blur.rs	7
src/imageops/mod.rs	17
src/images/generic_image.rs	11
src/codecs/avif/decoder.rs	8
src/codecs/png.rs	21
src/io/limits.rs	5
src/codecs/tiff.rs	15
src/codecs/dds.rs	11
src/io.rs	10
src/codecs/hdr/decoder.rs	55
src/codecs/openexr.rs	15
src/codecs/bmp/decoder.rs	50
src/imageops/sample.rs	25
src/codecs/ico/decoder.rs	14
src/codecs/pnm/decoder.rs	11
tests/limits_anim.rs	6
src/codecs/gif.rs	3

Fuzzer: fuzzer_script_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	1641	98.8%
gold	[1:9]	0	0.0%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	19	1.14%
All colors	1660	100

Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked	Calltree index	Parent function	Callsite	Largest blocked function
676	598	ImageReader::make_decoder	call site: 00598	BmpDecoder::read_metadata
256	245	ImageReader::make_decoder	call site: 00245	tests::test_image_outside_image_no_wrap_around
179	1285	ImageReader::make_decoder	call site: 01285	HdrDecoder::with_strictness
152	92	ImageBuffer::image_buffer_len	call site: 00092	Orientation::locate_orientation_entry
147	1465	Ratio::new	call site: 01465	Delay::closest_bounded_fraction
87	0	EP	call site: 00000	ImageReader::make_decoder
77	519	Limits::check_dimensions	call site: 00519	TgaDecoder::expand_color_map
24	1615	ImageReader::require_format	call site: 01615	ImageDecoder::set_limits
18	1641	ImageReader::set_format	call site: 01641	ImageDecoder::set_limits
16	502	Limits::check_support	call site: 00502	Limits::check_dimensions
8	1275	ImageReader::make_decoder	call site: 01275
1	1613	ImageReader::require_format	call site: 01613

Runtime coverage analysis

Covered functions

337

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	107
src/codecs/avif/encoder.rs	5
src/io/image_reader_type.rs	42
src/hooks.rs	14
src/images/flat.rs	2
src/codecs/tga/decoder.rs	15
src/metadata.rs	15
src/traits.rs	10
src/images/buffer.rs	14
src/images/buffer_par.rs	1
src/animation.rs	18
src/codecs/farbfeld.rs	9
src/color.rs	15
src/io/format.rs	2
src/utils/mod.rs	4
src/io/free_functions.rs	14
src/io/decoder.rs	10
src/imageops/fast_blur.rs	7
src/imageops/mod.rs	17
src/images/generic_image.rs	11
src/codecs/avif/decoder.rs	8
src/codecs/png.rs	21
src/io/limits.rs	5
src/codecs/tiff.rs	15
src/codecs/dds.rs	11
src/io.rs	10
src/codecs/hdr/decoder.rs	55
src/codecs/openexr.rs	15
src/codecs/bmp/decoder.rs	50
src/imageops/sample.rs	25
src/codecs/ico/decoder.rs	14
src/codecs/pnm/decoder.rs	11
tests/limits_anim.rs	6
src/codecs/gif.rs	3

Fuzzer: fuzzer_script_hdr

Call tree

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

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	1491	89.8%
gold	[1:9]	23	1.38%
yellow	[10:29]	4	0.24%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	142	8.55%
All colors	1660	100

Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked	Calltree index	Parent function	Callsite	Largest blocked function
493	781	io::Result::len	call site: 00781	BmpDecoder::read_metadata
223	278	crate::utils::check_dimension_overflow	call site: 00278	tests::test_image_outside_image_no_wrap_around
189	575	zune_core::options::DecoderOptions::default	call site: 00575	Header::from_reader
152	92	ImageBuffer::image_buffer_len	call site: 00092	Orientation::locate_orientation_entry
125	1445	HdrDecoder::with_strictness	call site: 01445	Delay::closest_bounded_fraction
87	0	EP	call site: 00000	ImageReader::make_decoder
55	519	Limits::check_dimensions	call site: 00519
30	245	ImageReader::make_decoder	call site: 00245	FarbfeldReader::new
24	1573	utils::check_dimension_overflow	call site: 01573	FarbfeldReader::new
22	1615	ImageReader::require_format	call site: 01615	ImageDecoder::set_limits
20	1275	ImageReader::make_decoder	call site: 01275
18	1641	ImageReader::set_format	call site: 01641	ImageDecoder::set_limits

Runtime coverage analysis

Covered functions

89

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	107
src/codecs/avif/encoder.rs	5
src/io/image_reader_type.rs	42
src/hooks.rs	14
src/images/flat.rs	2
src/codecs/tga/decoder.rs	15
src/metadata.rs	15
src/traits.rs	10
src/images/buffer.rs	14
src/images/buffer_par.rs	1
src/animation.rs	18
src/codecs/farbfeld.rs	9
src/color.rs	15
src/io/format.rs	2
src/utils/mod.rs	4
src/io/free_functions.rs	14
src/io/decoder.rs	10
src/imageops/fast_blur.rs	7
src/imageops/mod.rs	17
src/images/generic_image.rs	11
src/codecs/avif/decoder.rs	8
src/codecs/png.rs	21
src/io/limits.rs	5
src/codecs/tiff.rs	15
src/codecs/dds.rs	11
src/io.rs	10
src/codecs/hdr/decoder.rs	55
src/codecs/openexr.rs	15
src/codecs/bmp/decoder.rs	50
src/imageops/sample.rs	25
src/codecs/ico/decoder.rs	14
src/codecs/pnm/decoder.rs	11
tests/limits_anim.rs	6
src/codecs/gif.rs	3

Fuzzer: fuzzer_script_tga

Call tree

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

Call tree overview bitmap:

The distribution of callsites in terms of coloring is

Color	Runtime hitcount	Callsite count	Percentage
red	0	1422	83.8%
gold	[1:9]	67	3.95%
yellow	[10:29]	20	1.17%
greenyellow	[30:49]	13	0.76%
lawngreen	50+	174	10.2%
All colors	1696	100

Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked	Calltree index	Parent function	Callsite	Largest blocked function
287	1302	hdr::HdrDecoder::new	call site: 01302	HdrMetadata::update_header_info
259	952	TgaDecoder::expand_color_map	call site: 00952	BmpDecoder::read_bitmap_info_header
131	341	ImageDecoder::total_bytes	call site: 00341	tests::test_image_outside_image_no_wrap_around
109	515	avif::AvifDecoder::new	call site: 00515	FarbfeldDecoder::new
71	626	FarbfeldDecoder::new	call site: 00626	TgaDecoder::expand_color_map
69	34	ColorMap::get	call site: 00034	Orientation::locate_orientation_entry
59	815	tga::TgaDecoder::new	call site: 00815	Header::from_reader
52	878	DxtDecoder::new	call site: 00878	BmpDecoder::read_metadata
51	133	TgaDecoder::expand_color_map	call site: 00133	ImageReader::into_dimensions
37	1264	ico::IcoDecoder::new	call site: 01264	register_decoding_hook
35	1601	ico::IcoDecoder::new	call site: 01601	ImageDecoder::set_limits
31	1232	ico::IcoDecoder::new	call site: 01232	Enlargeable::clamp_from

Runtime coverage analysis

Covered functions

38

Functions that are reachable but not covered

2

Reachable functions

7

Percentage of reachable functions covered

71.43%

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

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

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
fuzz/fuzzers/fuzzer_script_tga.rs	2
tests/limits_anim.rs	5
src/error.rs	105
src/codecs/dds.rs	11
src/codecs/avif/encoder.rs	5
src/io/image_reader_type.rs	40
src/hooks.rs	14
src/images/flat.rs	2
src/codecs/tga/decoder.rs	15
src/metadata.rs	15
src/traits.rs	10
src/images/buffer.rs	14
src/images/buffer_par.rs	1
src/animation.rs	18
src/codecs/farbfeld.rs	9
src/color.rs	15
src/io/format.rs	2
src/utils/mod.rs	4
src/io/free_functions.rs	11
src/io/decoder.rs	10
src/imageops/fast_blur.rs	7
src/imageops/mod.rs	17
src/images/generic_image.rs	11
src/codecs/avif/decoder.rs	8
src/codecs/png.rs	21
src/io/limits.rs	5
src/codecs/tiff.rs	15
src/io.rs	10
src/codecs/hdr/decoder.rs	55
src/codecs/openexr.rs	15
src/codecs/bmp/decoder.rs	50
src/imageops/sample.rs	25
src/codecs/ico/decoder.rs	14
src/codecs/pnm/decoder.rs	11

Fuzzer: 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	1679	98.3%
gold	[1:9]	0	0.0%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	28	1.64%
All colors	1707	100

Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked	Calltree index	Parent function	Callsite	Largest blocked function
667	603	ImageReader::make_decoder	call site: 00603	BmpDecoder::read_metadata
256	250	ImageReader::make_decoder	call site: 00250	tests::test_image_outside_image_no_wrap_around
204	45	ImageBuffer::inner_pixels	call site: 00045	Orientation::locate_orientation_entry
179	1281	ImageReader::make_decoder	call site: 01281	HdrDecoder::with_strictness
147	1461	Ratio::new	call site: 01461	Delay::closest_bounded_fraction
77	524	Limits::check_dimensions	call site: 00524	TgaDecoder::expand_color_map
30	1655	ImageBuffer::from_raw	call site: 01655	Header::write_to
29	1611	ImageReader::require_format	call site: 01611	ImageDecoder::set_limits
27	0	EP	call site: 00000	ImageReader::make_decoder
19	1687	ImageReader::set_format	call site: 01687	ImageDecoder::set_limits
16	507	Limits::check_support	call site: 00507	Limits::check_dimensions
11	32	ImageBuffer::image_buffer_len	call site: 00032

Runtime coverage analysis

Covered functions

147

Functions that are reachable but not covered

8

Reachable functions

17

Percentage of reachable functions covered

52.94%

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

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

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
fuzz/fuzzers/roundtrip_webp.rs	11
src/codecs/hdr/decoder.rs	55
src/color.rs	15
src/codecs/avif/encoder.rs	9
src/io/image_reader_type.rs	42
src/hooks.rs	14
src/images/flat.rs	2
src/codecs/tga/decoder.rs	15
src/error.rs	107
src/images/buffer.rs	16
src/images/buffer_par.rs	1
src/codecs/farbfeld.rs	9
src/traits.rs	10
src/metadata.rs	15
src/animation.rs	18
src/io/format.rs	2
src/utils/mod.rs	4
src/io/free_functions.rs	14
src/io/decoder.rs	10
src/imageops/fast_blur.rs	7
src/imageops/mod.rs	17
src/images/generic_image.rs	11
src/codecs/avif/decoder.rs	8
src/codecs/png.rs	21
src/io/limits.rs	5
src/codecs/tiff.rs	15
src/codecs/dds.rs	11
src/io.rs	10
src/codecs/openexr.rs	15
src/codecs/bmp/decoder.rs	50
src/imageops/sample.rs	25
src/codecs/ico/decoder.rs	14
src/codecs/pnm/decoder.rs	11
src/codecs/tga/header.rs	3
src/images/dynimage.rs	3
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	1195	71.9%
gold	[1:9]	71	4.27%
yellow	[10:29]	28	1.68%
greenyellow	[30:49]	7	0.42%
lawngreen	50+	359	21.6%
All colors	1660	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
220	278	crate::utils::check_dimension_overflow	call site: 00278	tests::test_image_outside_image_no_wrap_around
117	1065	BmpDecoder::read_palette	call site: 01065	vertical_sample
110	519	Limits::check_dimensions	call site: 00519	FarbfeldDecoder::new
92	795	R::read_exact_vec	call site: 00795	BmpDecoder::read_metadata
69	15	ColorMap::get	call site: 00015	Orientation::locate_orientation_entry
56	1466	gcd	call site: 01466	Delay::closest_bounded_fraction
46	717	Header::from_reader	call site: 00717	ImageReader::into_dimensions
39	128	ImageBuffer::inner_pixels	call site: 00128	BmpDecoder::num_channels
39	1573	utils::check_dimension_overflow	call site: 01573	FarbfeldReader::new
30	245	ImageReader::make_decoder	call site: 00245	FarbfeldReader::new
28	180	TgaDecoder::expand_color_map	call site: 00180	Orientation::locate_orientation_entry
25	680	err_unknown_color_type	call site: 00680	Header::from_reader

Runtime coverage analysis

Covered functions

1544

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	107
src/codecs/avif/encoder.rs	5
src/io/image_reader_type.rs	42
src/hooks.rs	14
src/images/flat.rs	2
src/codecs/tga/decoder.rs	15
src/metadata.rs	15
src/traits.rs	10
src/images/buffer.rs	14
src/images/buffer_par.rs	1
src/animation.rs	18
src/codecs/farbfeld.rs	9
src/color.rs	15
src/io/format.rs	2
src/utils/mod.rs	4
src/io/free_functions.rs	14
src/io/decoder.rs	10
src/imageops/fast_blur.rs	7
src/imageops/mod.rs	17
src/images/generic_image.rs	11
src/codecs/avif/decoder.rs	8
src/codecs/png.rs	21
src/io/limits.rs	5
src/codecs/tiff.rs	15
src/codecs/dds.rs	11
src/io.rs	10
src/codecs/hdr/decoder.rs	55
src/codecs/openexr.rs	15
src/codecs/bmp/decoder.rs	50
src/imageops/sample.rs	25
src/codecs/ico/decoder.rs	14
src/codecs/pnm/decoder.rs	11
tests/limits_anim.rs	6
src/codecs/gif.rs	3

Fuzzer: fuzzer_script_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	1290	73.5%
gold	[1:9]	71	4.04%
yellow	[10:29]	28	1.59%
greenyellow	[30:49]	7	0.39%
lawngreen	50+	359	20.4%
All colors	1755	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
220	281	crate::utils::check_dimension_overflow	call site: 00281	tests::test_image_outside_image_no_wrap_around
117	1068	BmpDecoder::read_palette	call site: 01068	vertical_sample
116	1618	ImageReader::require_format	call site: 01618	ImageDecoder::set_limits
110	522	Limits::check_dimensions	call site: 00522	FarbfeldDecoder::new
92	798	R::read_exact_vec	call site: 00798	BmpDecoder::read_metadata
68	21	ColorMap::get	call site: 00021	Orientation::locate_orientation_entry
56	1469	gcd	call site: 01469	Delay::closest_bounded_fraction
46	720	Header::from_reader	call site: 00720	ImageReader::into_dimensions
39	133	ImageBuffer::inner_pixels	call site: 00133	BmpDecoder::num_channels
39	1576	utils::check_dimension_overflow	call site: 01576	FarbfeldReader::new
30	248	ImageReader::make_decoder	call site: 00248	FarbfeldReader::new
26	185	TgaDecoder::expand_color_map	call site: 00185	Orientation::locate_orientation_entry

Runtime coverage analysis

Covered functions

1544

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	59
src/hooks.rs	14
src/error.rs	107
src/codecs/avif/encoder.rs	5
src/images/flat.rs	2
src/codecs/tga/decoder.rs	15
src/metadata.rs	15
src/traits.rs	10
src/images/buffer.rs	14
src/images/buffer_par.rs	1
src/animation.rs	18
src/codecs/farbfeld.rs	9
src/color.rs	15
src/io/format.rs	2
src/utils/mod.rs	4
src/io/free_functions.rs	24
src/io/decoder.rs	10
src/imageops/fast_blur.rs	7
src/imageops/mod.rs	17
src/images/generic_image.rs	11
src/codecs/avif/decoder.rs	8
src/codecs/png.rs	21
src/io/limits.rs	5
src/codecs/tiff.rs	15
src/codecs/dds.rs	11
src/io.rs	10
src/codecs/hdr/decoder.rs	55
src/codecs/openexr.rs	15
src/codecs/bmp/decoder.rs	50
src/imageops/sample.rs	25
src/codecs/ico/decoder.rs	14
src/codecs/pnm/decoder.rs	11
src/codecs/gif.rs	9
tests/limits_anim.rs	6

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	1264	73.1%
gold	[1:9]	71	4.11%
yellow	[10:29]	28	1.62%
greenyellow	[30:49]	7	0.40%
lawngreen	50+	357	20.6%
All colors	1727	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
220	307	crate::utils::check_dimension_overflow	call site: 00307	tests::test_image_outside_image_no_wrap_around
126	1600	ImageReader::require_format	call site: 01600	Delay::closest_bounded_fraction
117	1094	BmpDecoder::read_palette	call site: 01094	vertical_sample
110	548	Limits::check_dimensions	call site: 00548	FarbfeldDecoder::new
92	824	R::read_exact_vec	call site: 00824	BmpDecoder::read_metadata
81	92	ImageBuffer::inner_pixels	call site: 00092	Orientation::locate_orientation_entry
46	746	Header::from_reader	call site: 00746	ImageReader::into_dimensions
39	1558	utils::check_dimension_overflow	call site: 01558	FarbfeldReader::new
33	37	gcd	call site: 00037	ImageReader::make_decoder
33	1474	HdrDecoder::with_strictness	call site: 01474	OpenExrDecoder::with_alpha_preference
30	274	ImageReader::make_decoder	call site: 00274	FarbfeldReader::new
28	209	TgaDecoder::expand_color_map	call site: 00209	Orientation::locate_orientation_entry

Runtime coverage analysis

Covered functions

1544

Functions that are reachable but not covered

6

Reachable functions

8

Percentage of reachable functions covered

25.0%

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

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

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
fuzz/fuzzers/fuzzer_script_exr.rs	20
src/codecs/openexr.rs	36
src/hooks.rs	14
src/images/buffer.rs	14
src/error.rs	105
src/images/buffer_par.rs	1
src/animation.rs	18
src/traits.rs	10
src/codecs/avif/encoder.rs	5
src/io/image_reader_type.rs	40
src/images/flat.rs	2
src/codecs/tga/decoder.rs	15
src/codecs/farbfeld.rs	9
src/color.rs	19
src/metadata.rs	15
src/io/format.rs	2
src/utils/mod.rs	4
src/io/free_functions.rs	11
src/io/decoder.rs	10
src/imageops/fast_blur.rs	7
src/imageops/mod.rs	17
src/images/generic_image.rs	11
src/codecs/avif/decoder.rs	8
src/codecs/png.rs	21
src/io/limits.rs	5
src/codecs/tiff.rs	15
src/codecs/dds.rs	11
src/io.rs	10
src/codecs/hdr/decoder.rs	55
src/codecs/bmp/decoder.rs	50
src/imageops/sample.rs	25
src/codecs/ico/decoder.rs	14
src/codecs/pnm/decoder.rs	11

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 / 1575

Cyclomatic complexity statically reachable by fuzzers

11 / 2145

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', 'gcd', 'Limits::check_dimensions', 'ImageReader::set_format', 'ImageDecoder::set_limits']

fuzz/fuzzers/fuzzer_script_bmp.rs

Dictionary

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

Fuzzer function priority

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

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

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

fuzz/fuzzers/fuzzer_script_ico.rs

Dictionary

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

Fuzzer function priority

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

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

fuzz/fuzzers/fuzzer_script_png.rs

Dictionary

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

Fuzzer function priority

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

-focus_function=['::std::io::Result::channel_count', 'ImageReader::make_decoder', 'Limits::check_dimensions', 'ImageDecoder::total_bytes', 'ImageBuffer::image_buffer_len', 'ImageReader::require_format', 'FarbfeldReader::new', 'ImageReader::set_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', 'hdr::HdrDecoder::new', 'ImageDecoder::total_bytes', 'ImageBuffer::image_buffer_len', 'Limits::check_dimensions', 'ImageReader::make_decoder', 'ImageReader::require_format', 'ImageError::from_tiff_decode']

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

fuzz/fuzzers/roundtrip_webp.rs

Dictionary

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

Fuzzer function priority

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

-focus_function=['ImageReader::make_decoder', 'ImageBuffer::inner_pixels', 'Ratio::new', 'Limits::check_dimensions', 'ImageBuffer::from_raw', 'ImageReader::require_format', 'ImageReader::set_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=['crate::utils::check_dimension_overflow', 'BmpDecoder::read_palette', 'Limits::check_dimensions', 'R::read_exact_vec', 'ColorMap::get', 'gcd', 'Header::from_reader', 'ImageBuffer::inner_pixels', 'utils::check_dimension_overflow', 'ImageReader::make_decoder']

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=['crate::utils::check_dimension_overflow', 'BmpDecoder::read_palette', 'ImageReader::require_format', 'Limits::check_dimensions', 'R::read_exact_vec', 'ColorMap::get', 'gcd', 'Header::from_reader', 'ImageBuffer::inner_pixels', 'utils::check_dimension_overflow']

fuzz/fuzzers/fuzzer_script_exr.rs

Dictionary

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

Fuzzer function priority

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

-focus_function=['crate::utils::check_dimension_overflow', 'ImageReader::require_format', 'BmpDecoder::read_palette', 'Limits::check_dimensions', 'R::read_exact_vec', 'ImageBuffer::inner_pixels', 'Header::from_reader', 'utils::check_dimension_overflow', 'gcd', 'HdrDecoder::with_strictness']

This section shows analysis of runtime coverage data.

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

Complex functions with low coverage

Func name	Function total lines	Lines covered at runtime	percentage covered	Reached by fuzzers
image::io::image_reader_type::ImageReaderstd::io::cursor::Cursor&[u8]::make_decoder	37	17	45.94%
miniz_oxide::inflate::core::decode_huffman_code::miniz_oxide::inflate::core::decompress::{closure:#9}	67	34	50.74%
tiff::decoder::image::Image::colortype	41	20	48.78%
tiff::decoder::Decoderstd::io::cursor::Cursor&[u8]::result_extent	42	19	45.23%
tiff::decoder::invert_colors	40	21	52.5%
zune_jpeg::worker::color_convert	58	17	29.31%
image::codecs::tiff::check_sample_format	36	17	47.22%
image_webp::encoder::WebPEncoder&mut std::io::cursor::Cursoralloc::vec::Vecu8::encode	61	19	31.14%

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

Directories in report

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

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