High level conclusions

Fuzzer fuzzer_script_guess is blocked:

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

Fuzzer fuzzer_script_exr is blocked:

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

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_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_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_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_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_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	1630	98.0%
gold	[1:9]	0	0.0%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	33	1.98%
All colors	1663	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	613	tiff::TiffDecoder::new	call site: 00613	BmpDecoder::read_metadata
256	245	ImageReader::make_decoder	call site: 00245	tests::test_image_outside_image_no_wrap_around
183	1284	ImageReader::make_decoder	call site: 01284	HdrDecoder::with_strictness
146	98	ImageBuffer::inner_pixels_mut	call site: 00098	Orientation::locate_orientation_entry
146	1469	gcd	call site: 01469	Delay::closest_bounded_fraction
87	0	EP	call site: 00000	ImageReader::make_decoder
36	519	Limits::check_dimensions	call site: 00519
21	557	ImageReader::make_decoder	call site: 00557
18	591	jpeg::JpegDecoder::new	call site: 00591
18	1644	ImageReader::set_format	call site: 01644	ImageDecoder::set_limits
17	1625	ImageDecoder::set_limits	call site: 01625	TgaDecoder::expand_color_map
16	502	Limits::check_support	call site: 00502	Limits::check_dimensions

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	1480	88.9%
gold	[1:9]	40	2.40%
yellow	[10:29]	15	0.90%
greenyellow	[30:49]	13	0.78%
lawngreen	50+	115	6.91%
All colors	1663	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	1296	ImageReader::make_decoder	call site: 01296	HdrDecoder::with_strictness
256	245	ImageReader::make_decoder	call site: 00245	tests::test_image_outside_image_no_wrap_around
191	575	zune_core::options::DecoderOptions::default	call site: 00575	Header::from_reader
152	92	ImageBuffer::image_buffer_len	call site: 00092	Orientation::locate_orientation_entry
117	1068	BmpDecoder::read_palette	call site: 01068	vertical_sample
88	798	R::read_exact_vec	call site: 00798	Header::from_reader
87	0	EP	call site: 00000	ImageReader::make_decoder
69	1208	bmp::BmpDecoder::new	call site: 01208	ImageReader::make_decoder
55	519	Limits::check_dimensions	call site: 00519
22	929	check_for_overflow	call site: 00929	ColorMap::get
22	1618	ImageReader::require_format	call site: 01618	ImageDecoder::set_limits
18	1644	ImageReader::set_format	call site: 01644	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	1552	93.3%
gold	[1:9]	10	0.60%
yellow	[10:29]	4	0.24%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	97	5.83%
All colors	1663	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	872	dds::DdsDecoder::new	call site: 00872	BmpDecoder::read_metadata
244	1278	ImageReader::make_decoder	call site: 01278	HdrDecoder::with_strictness
223	278	crate::utils::check_dimension_overflow	call site: 00278	tests::test_image_outside_image_no_wrap_around
191	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
87	0	EP	call site: 00000	ImageReader::make_decoder
55	519	Limits::check_dimensions	call site: 00519
46	798	R::read_exact_vec	call site: 00798	Header::from_reader
30	245	ImageReader::make_decoder	call site: 00245	FarbfeldReader::new
22	1618	ImageReader::require_format	call site: 01618	ImageDecoder::set_limits
18	1586	pnm::PnmDecoder::new	call site: 01586	FarbfeldReader::new
18	1644	ImageReader::set_format	call site: 01644	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_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	1633	98.1%
gold	[1:9]	5	0.30%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	25	1.50%
All colors	1663	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	778	::std::io::Result::channel_count	call site: 00778	BmpDecoder::read_metadata
333	1282	ImageReader::make_decoder	call site: 01282	HdrDecoder::with_strictness
250	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	1618	ImageReader::require_format	call site: 01618	ImageDecoder::set_limits
18	283	FarbfeldReader::new	call site: 00283	ExtendedColorType::color_type
18	1644	ImageReader::set_format	call site: 01644	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_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	1644	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	1663	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	601	ImageReader::make_decoder	call site: 00601	BmpDecoder::read_metadata
256	245	ImageReader::make_decoder	call site: 00245	tests::test_image_outside_image_no_wrap_around
179	1288	ImageReader::make_decoder	call site: 01288	HdrDecoder::with_strictness
152	92	ImageBuffer::image_buffer_len	call site: 00092	Orientation::locate_orientation_entry
147	1468	Ratio::new	call site: 01468	Delay::closest_bounded_fraction
87	0	EP	call site: 00000	ImageReader::make_decoder
80	519	Limits::check_dimensions	call site: 00519	TgaDecoder::expand_color_map
24	1618	ImageReader::require_format	call site: 01618	ImageDecoder::set_limits
18	1644	ImageReader::set_format	call site: 01644	ImageDecoder::set_limits
16	502	Limits::check_support	call site: 00502	Limits::check_dimensions
8	1278	ImageReader::make_decoder	call site: 01278
1	1616	ImageReader::require_format	call site: 01616

Runtime coverage analysis

Covered functions

338

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_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	1620	97.4%
gold	[1:9]	16	0.96%
yellow	[10:29]	5	0.30%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	22	1.32%
All colors	1663	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	683	err_unknown_color_type	call site: 00683	BmpDecoder::read_metadata
314	1301	hdr::HdrDecoder::new	call site: 01301	HdrMetadata::update_header_info
256	245	ImageReader::make_decoder	call site: 00245	tests::test_image_outside_image_no_wrap_around
152	92	ImageBuffer::image_buffer_len	call site: 00092	Orientation::locate_orientation_entry
88	519	Limits::check_dimensions	call site: 00519	TgaDecoder::expand_color_map
87	0	EP	call site: 00000	ImageReader::make_decoder
24	1618	ImageReader::require_format	call site: 01618	ImageDecoder::set_limits
23	609	ImageReader::make_decoder	call site: 00609	FarbfeldDecoder::new
23	655	ImageError::from_tiff_decode	call site: 00655	TgaDecoder::expand_color_map
18	1644	ImageReader::set_format	call site: 01644	ImageDecoder::set_limits
16	502	Limits::check_support	call site: 00502	Limits::check_dimensions
10	1278	ImageReader::make_decoder	call site: 01278

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_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	1460	87.7%
gold	[1:9]	41	2.46%
yellow	[10:29]	14	0.84%
greenyellow	[30:49]	5	0.30%
lawngreen	50+	143	8.59%
All colors	1663	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	1298	ImageReader::make_decoder	call site: 01298	HdrDecoder::with_strictness
247	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	1068	BmpDecoder::read_palette	call site: 01068	vertical_sample
92	798	R::read_exact_vec	call site: 00798	BmpDecoder::read_metadata
87	0	EP	call site: 00000	ImageReader::make_decoder
37	245	ImageReader::make_decoder	call site: 00245	FarbfeldReader::new
22	929	check_for_overflow	call site: 00929	ColorMap::get
21	1210	ImageReader::make_decoder	call site: 01210	read_entries
18	283	FarbfeldReader::new	call site: 00283	ExtendedColorType::color_type
18	1278	ImageReader::make_decoder	call site: 01278

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: 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	1682	98.3%
gold	[1:9]	0	0.0%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	28	1.63%
All colors	1710	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	606	ImageReader::make_decoder	call site: 00606	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	1284	ImageReader::make_decoder	call site: 01284	HdrDecoder::with_strictness
147	1464	Ratio::new	call site: 01464	Delay::closest_bounded_fraction
80	524	Limits::check_dimensions	call site: 00524	TgaDecoder::expand_color_map
30	1658	ImageBuffer::from_raw	call site: 01658	Header::write_to
29	1614	ImageReader::require_format	call site: 01614	ImageDecoder::set_limits
27	0	EP	call site: 00000	ImageReader::make_decoder
19	1690	ImageReader::set_format	call site: 01690	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_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	1425	83.8%
gold	[1:9]	67	3.94%
yellow	[10:29]	20	1.17%
greenyellow	[30:49]	13	0.76%
lawngreen	50+	174	10.2%
All colors	1699	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	1305	hdr::HdrDecoder::new	call site: 01305	HdrMetadata::update_header_info
259	955	TgaDecoder::expand_color_map	call site: 00955	BmpDecoder::read_bitmap_info_header
131	341	ImageDecoder::total_bytes	call site: 00341	tests::test_image_outside_image_no_wrap_around
112	515	avif::AvifDecoder::new	call site: 00515	FarbfeldDecoder::new
71	629	FarbfeldDecoder::new	call site: 00629	TgaDecoder::expand_color_map
69	34	ColorMap::get	call site: 00034	Orientation::locate_orientation_entry
59	818	tga::TgaDecoder::new	call site: 00818	Header::from_reader
52	881	DxtDecoder::new	call site: 00881	BmpDecoder::read_metadata
51	133	TgaDecoder::expand_color_map	call site: 00133	ImageReader::into_dimensions
37	1267	ico::IcoDecoder::new	call site: 01267	register_decoding_hook
35	1604	ico::IcoDecoder::new	call site: 01604	ImageDecoder::set_limits
31	1235	ico::IcoDecoder::new	call site: 01235	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: 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	1482	89.1%
gold	[1:9]	20	1.20%
yellow	[10:29]	7	0.42%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	154	9.26%
All colors	1663	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	784	io::Result::len	call site: 00784	BmpDecoder::read_metadata
192	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
125	1448	HdrDecoder::with_strictness	call site: 01448	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	1576	utils::check_dimension_overflow	call site: 01576	FarbfeldReader::new
23	278	crate::utils::check_dimension_overflow	call site: 00278	ExtendedColorType::color_type
20	1278	ImageReader::make_decoder	call site: 01278
18	1644	ImageReader::set_format	call site: 01644	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_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	1198	72.0%
gold	[1:9]	73	4.38%
yellow	[10:29]	26	1.56%
greenyellow	[30:49]	5	0.30%
lawngreen	50+	361	21.7%
All colors	1663	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	1068	BmpDecoder::read_palette	call site: 01068	vertical_sample
113	519	Limits::check_dimensions	call site: 00519	FarbfeldDecoder::new
92	798	R::read_exact_vec	call site: 00798	BmpDecoder::read_metadata
69	15	ColorMap::get	call site: 00015	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	128	ImageBuffer::inner_pixels	call site: 00128	BmpDecoder::num_channels
39	1576	utils::check_dimension_overflow	call site: 01576	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	683	err_unknown_color_type	call site: 00683	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_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	1267	73.2%
gold	[1:9]	73	4.21%
yellow	[10:29]	26	1.50%
greenyellow	[30:49]	5	0.28%
lawngreen	50+	359	20.7%
All colors	1730	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	1603	ImageReader::require_format	call site: 01603	Delay::closest_bounded_fraction
117	1097	BmpDecoder::read_palette	call site: 01097	vertical_sample
113	548	Limits::check_dimensions	call site: 00548	FarbfeldDecoder::new
92	827	R::read_exact_vec	call site: 00827	BmpDecoder::read_metadata
81	92	ImageBuffer::inner_pixels	call site: 00092	Orientation::locate_orientation_entry
46	749	Header::from_reader	call site: 00749	ImageReader::into_dimensions
39	1561	utils::check_dimension_overflow	call site: 01561	FarbfeldReader::new
33	37	gcd	call site: 00037	ImageReader::make_decoder
33	1477	HdrDecoder::with_strictness	call site: 01477	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

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	1293	73.5%
gold	[1:9]	73	4.15%
yellow	[10:29]	26	1.47%
greenyellow	[30:49]	5	0.28%
lawngreen	50+	361	20.5%
All colors	1758	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	1071	BmpDecoder::read_palette	call site: 01071	vertical_sample
116	1621	ImageReader::require_format	call site: 01621	ImageDecoder::set_limits
113	522	Limits::check_dimensions	call site: 00522	FarbfeldDecoder::new
92	801	R::read_exact_vec	call site: 00801	BmpDecoder::read_metadata
68	21	ColorMap::get	call site: 00021	Orientation::locate_orientation_entry
56	1472	gcd	call site: 01472	Delay::closest_bounded_fraction
46	723	Header::from_reader	call site: 00723	ImageReader::into_dimensions
39	133	ImageBuffer::inner_pixels	call site: 00133	BmpDecoder::num_channels
39	1579	utils::check_dimension_overflow	call site: 01579	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

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', 'jpeg::JpegDecoder::new', 'ImageReader::set_format']

fuzz/fuzzers/fuzzer_script_bmp.rs

Dictionary

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

Fuzzer function priority

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

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

fuzz/fuzzers/fuzzer_script_pnm.rs

Dictionary

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

Fuzzer function priority

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

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

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_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_tiff.rs

Dictionary

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

Fuzzer function priority

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

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

fuzz/fuzzers/fuzzer_script_ico.rs

Dictionary

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

Fuzzer function priority

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

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

fuzz/fuzzers/roundtrip_webp.rs

Dictionary

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

Fuzzer function priority

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

-focus_function=['ImageReader::make_decoder', 'ImageBuffer::inner_pixels', 'Ratio::new', 'Limits::check_dimensions', 'ImageBuffer::from_raw', 'ImageReader::require_format', 'ImageReader::set_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/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', 'zune_core::options::DecoderOptions::default', 'ImageDecoder::total_bytes', 'ImageBuffer::image_buffer_len', 'HdrDecoder::with_strictness', 'Limits::check_dimensions', 'ImageReader::make_decoder', 'utils::check_dimension_overflow', 'crate::utils::check_dimension_overflow']

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_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']

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']

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::ifd::Entry::val::std::io::cursor::Cursor&[u8]	134	72	53.73%
tiff::decoder::image::Image::colortype	41	14	34.14%
tiff::decoder::Decoderstd::io::cursor::Cursor&[u8]::result_extent	42	20	47.61%
tiff::decoder::invert_colors	40	21	52.5%
zune_jpeg::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/fuzz/fuzzers/fuzzer_script_gif.rs	['fuzzer_script_gif']	[]
/src/image/tests/save_pnm.rs	[]	[]
/src/image/src/codecs/tga/encoder.rs	[]	[]
/src/image/src/codecs/pnm/mod.rs	[]	[]
/src/image/tests/limits.rs	[]	[]
/src/image/src/codecs/qoi.rs	[]	[]
/src/image/benches/decode.rs	[]	[]
/src/image/src/codecs/avif/ycgco.rs	[]	[]
/src/image/fuzz/fuzzers/fuzzer_script_tga.rs	['fuzzer_script_tga']	['fuzzer_script_tga']
/src/image/src/lib.rs	[]	[]
/src/image/src/codecs/hdr/encoder.rs	[]	[]
/src/image/src/codecs/gif.rs	['fuzzer_script_gif', 'fuzzer_script_bmp', 'fuzzer_script_pnm', 'fuzzer_script_png', 'fuzzer_script_webp', 'fuzzer_script_tiff', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_hdr', 'fuzzer_script_jpeg', 'fuzzer_script_guess']	['fuzzer_script_gif', 'fuzzer_script_bmp', 'fuzzer_script_pnm', 'fuzzer_script_png', 'fuzzer_script_webp', 'fuzzer_script_tiff', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_hdr', 'fuzzer_script_jpeg', 'fuzzer_script_guess']
/src/image/src/codecs/dds.rs	['fuzzer_script_gif', 'fuzzer_script_bmp', 'fuzzer_script_pnm', 'fuzzer_script_png', 'fuzzer_script_webp', 'fuzzer_script_tiff', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tga', 'fuzzer_script_hdr', 'fuzzer_script_jpeg', 'fuzzer_script_exr', 'fuzzer_script_guess']	['fuzzer_script_gif', 'fuzzer_script_bmp', 'fuzzer_script_pnm', 'fuzzer_script_png', 'fuzzer_script_webp', 'fuzzer_script_tiff', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tga', 'fuzzer_script_hdr', 'fuzzer_script_jpeg', 'fuzzer_script_exr', 'fuzzer_script_guess']
/src/image/tests/truncate_images.rs	[]	[]
/src/image/src/codecs/jpeg/transform.rs	[]	[]
/src/image/src/codecs/ico/decoder.rs	['fuzzer_script_gif', 'fuzzer_script_bmp', 'fuzzer_script_pnm', 'fuzzer_script_png', 'fuzzer_script_webp', 'fuzzer_script_tiff', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tga', 'fuzzer_script_hdr', 'fuzzer_script_jpeg', 'fuzzer_script_exr', 'fuzzer_script_guess']	['fuzzer_script_gif', 'fuzzer_script_bmp', 'fuzzer_script_pnm', 'fuzzer_script_png', 'fuzzer_script_webp', 'fuzzer_script_tiff', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tga', 'fuzzer_script_hdr', 'fuzzer_script_jpeg', 'fuzzer_script_exr', 'fuzzer_script_guess']
/src/image/src/codecs/dxt.rs	[]	[]
/src/image/src/codecs/pnm/decoder.rs	['fuzzer_script_gif', 'fuzzer_script_bmp', 'fuzzer_script_pnm', 'fuzzer_script_png', 'fuzzer_script_webp', 'fuzzer_script_tiff', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tga', 'fuzzer_script_hdr', 'fuzzer_script_jpeg', 'fuzzer_script_exr', 'fuzzer_script_guess']	['fuzzer_script_gif', 'fuzzer_script_bmp', 'fuzzer_script_pnm', 'fuzzer_script_png', 'fuzzer_script_webp', 'fuzzer_script_tiff', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tga', 'fuzzer_script_hdr', 'fuzzer_script_jpeg', 'fuzzer_script_exr', 'fuzzer_script_guess']
/src/image/src/images/buffer_par.rs	['fuzzer_script_gif', 'fuzzer_script_bmp', 'fuzzer_script_pnm', 'fuzzer_script_png', 'fuzzer_script_webp', 'fuzzer_script_tiff', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tga', 'fuzzer_script_hdr', 'fuzzer_script_jpeg', 'fuzzer_script_exr', 'fuzzer_script_guess']	['fuzzer_script_gif', 'fuzzer_script_bmp', 'fuzzer_script_pnm', 'fuzzer_script_png', 'fuzzer_script_webp', 'fuzzer_script_tiff', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_hdr', 'fuzzer_script_jpeg', 'fuzzer_script_exr', 'fuzzer_script_guess']
/src/image/benches/encode.rs	[]	[]
/src/image/src/codecs/avif/encoder.rs	['fuzzer_script_gif', 'fuzzer_script_bmp', 'fuzzer_script_pnm', 'fuzzer_script_png', 'fuzzer_script_webp', 'fuzzer_script_tiff', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tga', 'fuzzer_script_hdr', 'fuzzer_script_jpeg', 'fuzzer_script_exr', 'fuzzer_script_guess']	['fuzzer_script_gif', 'fuzzer_script_bmp', 'fuzzer_script_pnm', 'fuzzer_script_png', 'fuzzer_script_webp', 'fuzzer_script_tiff', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tga', 'fuzzer_script_hdr', 'fuzzer_script_jpeg', 'fuzzer_script_exr', 'fuzzer_script_guess']
/src/image/tests/reference_images.rs	[]	[]
/src/image/src/math/utils.rs	[]	[]
/src/image/src/color.rs	['fuzzer_script_gif', 'fuzzer_script_bmp', 'fuzzer_script_pnm', 'fuzzer_script_png', 'fuzzer_script_webp', 'fuzzer_script_tiff', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tga', 'fuzzer_script_hdr', 'fuzzer_script_jpeg', 'fuzzer_script_exr', 'fuzzer_script_guess']	['fuzzer_script_gif', 'fuzzer_script_bmp', 'fuzzer_script_pnm', 'fuzzer_script_png', 'fuzzer_script_webp', 'fuzzer_script_tiff', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tga', 'fuzzer_script_hdr', 'fuzzer_script_jpeg', 'fuzzer_script_exr', 'fuzzer_script_guess']
/src/image/src/traits.rs	['fuzzer_script_gif', 'fuzzer_script_bmp', 'fuzzer_script_pnm', 'fuzzer_script_png', 'fuzzer_script_webp', 'fuzzer_script_tiff', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tga', 'fuzzer_script_hdr', 'fuzzer_script_jpeg', 'fuzzer_script_exr', 'fuzzer_script_guess']	['roundtrip_webp', 'fuzzer_script_jpeg', 'fuzzer_script_exr', 'fuzzer_script_guess']
/src/image/src/io/image_reader_type.rs	['fuzzer_script_gif', 'fuzzer_script_bmp', 'fuzzer_script_pnm', 'fuzzer_script_png', 'fuzzer_script_webp', 'fuzzer_script_tiff', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tga', 'fuzzer_script_hdr', 'fuzzer_script_jpeg', 'fuzzer_script_exr', 'fuzzer_script_guess']	['fuzzer_script_gif', 'fuzzer_script_bmp', 'fuzzer_script_pnm', 'fuzzer_script_png', 'fuzzer_script_webp', 'fuzzer_script_tiff', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tga', 'fuzzer_script_hdr', 'fuzzer_script_jpeg', 'fuzzer_script_exr', 'fuzzer_script_guess']
/src/image/tests/limits_anim.rs	['fuzzer_script_gif', 'fuzzer_script_bmp', 'fuzzer_script_pnm', 'fuzzer_script_png', 'fuzzer_script_webp', 'fuzzer_script_tiff', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tga', 'fuzzer_script_hdr', 'fuzzer_script_jpeg', 'fuzzer_script_guess']	[]
/src/image/fuzz/fuzzers/fuzzer_script_jpeg.rs	['fuzzer_script_jpeg']	[]
/src/image/tests/conversions.rs	[]	[]
/src/image/src/images/flat.rs	['fuzzer_script_gif', 'fuzzer_script_bmp', 'fuzzer_script_pnm', 'fuzzer_script_png', 'fuzzer_script_webp', 'fuzzer_script_tiff', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tga', 'fuzzer_script_hdr', 'fuzzer_script_jpeg', 'fuzzer_script_exr', 'fuzzer_script_guess']	['fuzzer_script_gif', 'fuzzer_script_bmp', 'fuzzer_script_pnm', 'fuzzer_script_png', 'fuzzer_script_webp', 'fuzzer_script_tiff', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tga', 'fuzzer_script_hdr', 'fuzzer_script_jpeg', 'fuzzer_script_exr', 'fuzzer_script_guess']
/src/image/fuzz/fuzzers/fuzzer_script_ico.rs	['fuzzer_script_ico']	[]
/src/image/examples/concat/main.rs	[]	[]
/src/image/src/imageops/fast_blur.rs	['fuzzer_script_gif', 'fuzzer_script_bmp', 'fuzzer_script_pnm', 'fuzzer_script_png', 'fuzzer_script_webp', 'fuzzer_script_tiff', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tga', 'fuzzer_script_hdr', 'fuzzer_script_jpeg', 'fuzzer_script_exr', 'fuzzer_script_guess']	[]
/src/image/src/codecs/avif/decoder.rs	['fuzzer_script_gif', 'fuzzer_script_bmp', 'fuzzer_script_pnm', 'fuzzer_script_png', 'fuzzer_script_webp', 'fuzzer_script_tiff', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tga', 'fuzzer_script_hdr', 'fuzzer_script_jpeg', 'fuzzer_script_exr', 'fuzzer_script_guess']	['fuzzer_script_gif', 'fuzzer_script_bmp', 'fuzzer_script_pnm', 'fuzzer_script_png', 'fuzzer_script_webp', 'fuzzer_script_tiff', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tga', 'fuzzer_script_hdr', 'fuzzer_script_jpeg', 'fuzzer_script_exr', 'fuzzer_script_guess']
/src/image/fuzz/fuzzers/fuzzer_script_exr.rs	['fuzzer_script_exr']	[]
/src/image/src/utils/mod.rs	['fuzzer_script_gif', 'fuzzer_script_bmp', 'fuzzer_script_pnm', 'fuzzer_script_png', 'fuzzer_script_webp', 'fuzzer_script_tiff', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tga', 'fuzzer_script_hdr', 'fuzzer_script_jpeg', 'fuzzer_script_exr', 'fuzzer_script_guess']	['fuzzer_script_pnm', 'fuzzer_script_tiff', 'fuzzer_script_hdr', 'fuzzer_script_jpeg', 'fuzzer_script_exr', 'fuzzer_script_guess']
/src/image/src/codecs/hdr/decoder.rs	['fuzzer_script_gif', 'fuzzer_script_bmp', 'fuzzer_script_pnm', 'fuzzer_script_png', 'fuzzer_script_webp', 'fuzzer_script_tiff', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tga', 'fuzzer_script_hdr', 'fuzzer_script_jpeg', 'fuzzer_script_exr', 'fuzzer_script_guess']	['fuzzer_script_gif', 'fuzzer_script_bmp', 'fuzzer_script_pnm', 'fuzzer_script_png', 'fuzzer_script_webp', 'fuzzer_script_tiff', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tga', 'fuzzer_script_hdr', 'fuzzer_script_jpeg', 'fuzzer_script_exr', 'fuzzer_script_guess']
/src/image/src/io/format.rs	['fuzzer_script_gif', 'fuzzer_script_bmp', 'fuzzer_script_pnm', 'fuzzer_script_png', 'fuzzer_script_webp', 'fuzzer_script_tiff', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tga', 'fuzzer_script_hdr', 'fuzzer_script_jpeg', 'fuzzer_script_exr', 'fuzzer_script_guess']	['fuzzer_script_png', 'fuzzer_script_tiff', 'fuzzer_script_ico', 'fuzzer_script_jpeg', 'fuzzer_script_exr', 'fuzzer_script_guess']
/src/image/fuzz-afl/reproducers/reproduce_webp.rs	[]	[]
/src/image/fuzz/fuzzers/roundtrip_webp.rs	['roundtrip_webp']	[]
/src/image/src/codecs/openexr.rs	['fuzzer_script_gif', 'fuzzer_script_bmp', 'fuzzer_script_pnm', 'fuzzer_script_png', 'fuzzer_script_webp', 'fuzzer_script_tiff', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tga', 'fuzzer_script_hdr', 'fuzzer_script_jpeg', 'fuzzer_script_exr', 'fuzzer_script_guess']	['fuzzer_script_gif', 'fuzzer_script_bmp', 'fuzzer_script_pnm', 'fuzzer_script_png', 'fuzzer_script_webp', 'fuzzer_script_tiff', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tga', 'fuzzer_script_hdr', 'fuzzer_script_jpeg', 'fuzzer_script_exr', 'fuzzer_script_guess']
/src/image/src/metadata/cicp.rs	[]	[]
/src/image/src/codecs/webp/decoder.rs	[]	[]
/src/image/src/imageops/mod.rs	['fuzzer_script_gif', 'fuzzer_script_bmp', 'fuzzer_script_pnm', 'fuzzer_script_png', 'fuzzer_script_webp', 'fuzzer_script_tiff', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tga', 'fuzzer_script_hdr', 'fuzzer_script_jpeg', 'fuzzer_script_exr', 'fuzzer_script_guess']	[]
/src/image/src/codecs/jpeg/entropy.rs	[]	[]
/src/image/src/images/generic_image.rs	['fuzzer_script_gif', 'fuzzer_script_bmp', 'fuzzer_script_pnm', 'fuzzer_script_png', 'fuzzer_script_webp', 'fuzzer_script_tiff', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tga', 'fuzzer_script_hdr', 'fuzzer_script_jpeg', 'fuzzer_script_exr', 'fuzzer_script_guess']	['fuzzer_script_gif', 'fuzzer_script_pnm', 'fuzzer_script_png', 'fuzzer_script_webp', 'fuzzer_script_tiff', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_jpeg', 'fuzzer_script_exr', 'fuzzer_script_guess']
/src/image/src/codecs/tga/decoder.rs	['fuzzer_script_gif', 'fuzzer_script_bmp', 'fuzzer_script_pnm', 'fuzzer_script_png', 'fuzzer_script_webp', 'fuzzer_script_tiff', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tga', 'fuzzer_script_hdr', 'fuzzer_script_jpeg', 'fuzzer_script_exr', 'fuzzer_script_guess']	['fuzzer_script_gif', 'fuzzer_script_bmp', 'fuzzer_script_pnm', 'fuzzer_script_png', 'fuzzer_script_webp', 'fuzzer_script_tiff', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tga', 'fuzzer_script_hdr', 'fuzzer_script_jpeg', 'fuzzer_script_exr', 'fuzzer_script_guess']
/src/image/src/imageops/affine.rs	[]	[]
/src/image/src/images/dynimage.rs	['fuzzer_script_gif', 'fuzzer_script_bmp', 'fuzzer_script_pnm', 'fuzzer_script_png', 'fuzzer_script_webp', 'fuzzer_script_tiff', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_hdr', 'fuzzer_script_jpeg', 'fuzzer_script_guess']	['fuzzer_script_gif', 'fuzzer_script_bmp', 'fuzzer_script_pnm', 'fuzzer_script_png', 'fuzzer_script_webp', 'fuzzer_script_tiff', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_hdr', 'fuzzer_script_jpeg', 'fuzzer_script_guess']
/src/image/fuzz/fuzzers/fuzzer_script_webp.rs	['fuzzer_script_webp']	[]
/src/image/src/imageops/filter_1d.rs	[]	[]
/src/image/fuzz/fuzzers/fuzzer_script_tiff.rs	['fuzzer_script_tiff']	[]
/src/image/src/codecs/avif/yuv.rs	[]	[]
/src/image/benches/blur.rs	[]	[]
/src/image/tests/regression.rs	[]	[]
/src/image/src/codecs/pnm/header.rs	[]	[]
/src/image/src/codecs/tga/header.rs	['roundtrip_webp']	['roundtrip_webp']
/src/image/src/codecs/webp/encoder.rs	[]	[]
/src/image/src/codecs/tiff.rs	['fuzzer_script_gif', 'fuzzer_script_bmp', 'fuzzer_script_pnm', 'fuzzer_script_png', 'fuzzer_script_webp', 'fuzzer_script_tiff', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tga', 'fuzzer_script_hdr', 'fuzzer_script_jpeg', 'fuzzer_script_exr', 'fuzzer_script_guess']	['fuzzer_script_gif', 'fuzzer_script_bmp', 'fuzzer_script_pnm', 'fuzzer_script_png', 'fuzzer_script_webp', 'fuzzer_script_tiff', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tga', 'fuzzer_script_hdr', 'fuzzer_script_jpeg', 'fuzzer_script_exr', 'fuzzer_script_guess']
/src/image/src/io/limits.rs	['fuzzer_script_gif', 'fuzzer_script_bmp', 'fuzzer_script_pnm', 'fuzzer_script_png', 'fuzzer_script_webp', 'fuzzer_script_tiff', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tga', 'fuzzer_script_hdr', 'fuzzer_script_jpeg', 'fuzzer_script_exr', 'fuzzer_script_guess']	['fuzzer_script_gif', 'fuzzer_script_bmp', 'fuzzer_script_pnm', 'fuzzer_script_png', 'fuzzer_script_webp', 'fuzzer_script_tiff', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_hdr', 'fuzzer_script_jpeg', 'fuzzer_script_exr', 'fuzzer_script_guess']
/src/image/src/imageops/sample.rs	['fuzzer_script_gif', 'fuzzer_script_bmp', 'fuzzer_script_pnm', 'fuzzer_script_png', 'fuzzer_script_webp', 'fuzzer_script_tiff', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tga', 'fuzzer_script_hdr', 'fuzzer_script_jpeg', 'fuzzer_script_exr', 'fuzzer_script_guess']	['fuzzer_script_png', 'fuzzer_script_tiff', 'fuzzer_script_ico', 'fuzzer_script_jpeg', 'fuzzer_script_exr', 'fuzzer_script_guess']
/src/image/src/codecs/png.rs	['fuzzer_script_gif', 'fuzzer_script_bmp', 'fuzzer_script_pnm', 'fuzzer_script_png', 'fuzzer_script_webp', 'fuzzer_script_tiff', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tga', 'fuzzer_script_hdr', 'fuzzer_script_jpeg', 'fuzzer_script_exr', 'fuzzer_script_guess']	['fuzzer_script_gif', 'fuzzer_script_bmp', 'fuzzer_script_pnm', 'fuzzer_script_png', 'fuzzer_script_webp', 'fuzzer_script_tiff', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tga', 'fuzzer_script_hdr', 'fuzzer_script_jpeg', 'fuzzer_script_exr', 'fuzzer_script_guess']
/src/image/examples/scaledown/main.rs	[]	[]
/src/image/src/metadata.rs	['fuzzer_script_gif', 'fuzzer_script_bmp', 'fuzzer_script_pnm', 'fuzzer_script_png', 'fuzzer_script_webp', 'fuzzer_script_tiff', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tga', 'fuzzer_script_hdr', 'fuzzer_script_jpeg', 'fuzzer_script_exr', 'fuzzer_script_guess']	[]
/src/image/src/io.rs	['fuzzer_script_gif', 'fuzzer_script_bmp', 'fuzzer_script_pnm', 'fuzzer_script_png', 'fuzzer_script_webp', 'fuzzer_script_tiff', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tga', 'fuzzer_script_hdr', 'fuzzer_script_jpeg', 'fuzzer_script_exr', 'fuzzer_script_guess']	['fuzzer_script_bmp', 'fuzzer_script_pnm', 'fuzzer_script_ico', 'fuzzer_script_tga', 'fuzzer_script_jpeg', 'fuzzer_script_exr', 'fuzzer_script_guess']
/src/image/src/io/free_functions.rs	['fuzzer_script_gif', 'fuzzer_script_bmp', 'fuzzer_script_pnm', 'fuzzer_script_png', 'fuzzer_script_webp', 'fuzzer_script_tiff', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tga', 'fuzzer_script_hdr', 'fuzzer_script_jpeg', 'fuzzer_script_exr', 'fuzzer_script_guess']	[]
/src/image/src/codecs/jpeg/encoder.rs	[]	[]
/src/image/tests/metadata.rs	[]	[]
/src/image/src/codecs/pnm/autobreak.rs	[]	[]
/src/image/src/images/buffer.rs	['fuzzer_script_gif', 'fuzzer_script_bmp', 'fuzzer_script_pnm', 'fuzzer_script_png', 'fuzzer_script_webp', 'fuzzer_script_tiff', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tga', 'fuzzer_script_hdr', 'fuzzer_script_jpeg', 'fuzzer_script_exr', 'fuzzer_script_guess']	['fuzzer_script_gif', 'fuzzer_script_bmp', 'fuzzer_script_pnm', 'fuzzer_script_png', 'fuzzer_script_webp', 'fuzzer_script_tiff', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tga', 'fuzzer_script_hdr', 'fuzzer_script_jpeg', 'fuzzer_script_exr', 'fuzzer_script_guess']
/src/image/fuzz/fuzzers/fuzzer_script_hdr.rs	['fuzzer_script_hdr']	[]
/src/image/src/animation.rs	['fuzzer_script_gif', 'fuzzer_script_bmp', 'fuzzer_script_pnm', 'fuzzer_script_png', 'fuzzer_script_webp', 'fuzzer_script_tiff', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tga', 'fuzzer_script_hdr', 'fuzzer_script_jpeg', 'fuzzer_script_exr', 'fuzzer_script_guess']	['fuzzer_script_gif', 'fuzzer_script_bmp', 'fuzzer_script_pnm', 'fuzzer_script_png', 'fuzzer_script_webp', 'fuzzer_script_tiff', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tga', 'fuzzer_script_hdr', 'fuzzer_script_jpeg', 'fuzzer_script_exr', 'fuzzer_script_guess']
/src/image/src/hooks.rs	['fuzzer_script_gif', 'fuzzer_script_bmp', 'fuzzer_script_pnm', 'fuzzer_script_png', 'fuzzer_script_webp', 'fuzzer_script_tiff', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tga', 'fuzzer_script_hdr', 'fuzzer_script_jpeg', 'fuzzer_script_exr', 'fuzzer_script_guess']	['fuzzer_script_gif', 'fuzzer_script_bmp', 'fuzzer_script_png', 'fuzzer_script_webp', 'fuzzer_script_tiff', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_jpeg', 'fuzzer_script_exr', 'fuzzer_script_guess']
/src/image/src/codecs/farbfeld.rs	['fuzzer_script_gif', 'fuzzer_script_bmp', 'fuzzer_script_pnm', 'fuzzer_script_png', 'fuzzer_script_webp', 'fuzzer_script_tiff', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tga', 'fuzzer_script_hdr', 'fuzzer_script_jpeg', 'fuzzer_script_exr', 'fuzzer_script_guess']	['fuzzer_script_gif', 'fuzzer_script_bmp', 'fuzzer_script_pnm', 'fuzzer_script_png', 'fuzzer_script_webp', 'fuzzer_script_tiff', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tga', 'fuzzer_script_hdr', 'fuzzer_script_jpeg', 'fuzzer_script_exr', 'fuzzer_script_guess']
/src/image/src/error.rs	['fuzzer_script_gif', 'fuzzer_script_bmp', 'fuzzer_script_pnm', 'fuzzer_script_png', 'fuzzer_script_webp', 'fuzzer_script_tiff', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tga', 'fuzzer_script_hdr', 'fuzzer_script_jpeg', 'fuzzer_script_exr', 'fuzzer_script_guess']	['fuzzer_script_gif', 'fuzzer_script_bmp', 'fuzzer_script_pnm', 'fuzzer_script_png', 'fuzzer_script_webp', 'fuzzer_script_tiff', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tga', 'fuzzer_script_hdr', 'fuzzer_script_jpeg', 'fuzzer_script_exr', 'fuzzer_script_guess']
/src/image/src/images/sub_image.rs	[]	[]
/src/image/fuzz-afl/reproducers/reproduce_pnm.rs	[]	[]
/src/image/src/io/decoder.rs	['fuzzer_script_gif', 'fuzzer_script_bmp', 'fuzzer_script_pnm', 'fuzzer_script_png', 'fuzzer_script_webp', 'fuzzer_script_tiff', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tga', 'fuzzer_script_hdr', 'fuzzer_script_jpeg', 'fuzzer_script_exr', 'fuzzer_script_guess']	['fuzzer_script_gif', 'fuzzer_script_bmp', 'fuzzer_script_pnm', 'fuzzer_script_png', 'fuzzer_script_webp', 'fuzzer_script_tiff', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tga', 'fuzzer_script_hdr', 'fuzzer_script_jpeg', 'fuzzer_script_exr', 'fuzzer_script_guess']
/src/image/src/imageops/colorops.rs	[]	[]
/src/image/src/codecs/bmp/encoder.rs	[]	[]
/src/image/src/codecs/ico/encoder.rs	[]	[]
/src/image/fuzz/fuzzers/fuzzer_script_pnm.rs	['fuzzer_script_pnm']	[]
/src/image/src/codecs/pnm/encoder.rs	[]	[]
/src/image/src/codecs/jpeg/decoder.rs	[]	[]
/src/image/src/io/encoder.rs	[]	[]
/src/image/benches/copy_from.rs	[]	[]
/src/image/fuzz-afl/reproducers/utils.rs	[]	[]
/src/image/fuzz/fuzzers/fuzzer_script_guess.rs	['fuzzer_script_guess']	[]
/src/image/tests/save_jpeg.rs	[]	[]
/src/image/src/codecs/bmp/decoder.rs	['fuzzer_script_gif', 'fuzzer_script_bmp', 'fuzzer_script_pnm', 'fuzzer_script_png', 'fuzzer_script_webp', 'fuzzer_script_tiff', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tga', 'fuzzer_script_hdr', 'fuzzer_script_jpeg', 'fuzzer_script_exr', 'fuzzer_script_guess']	['fuzzer_script_gif', 'fuzzer_script_bmp', 'fuzzer_script_pnm', 'fuzzer_script_png', 'fuzzer_script_webp', 'fuzzer_script_tiff', 'fuzzer_script_ico', 'roundtrip_webp', 'fuzzer_script_tga', 'fuzzer_script_hdr', 'fuzzer_script_jpeg', 'fuzzer_script_exr', 'fuzzer_script_guess']
/src/image/fuzz/fuzzers/fuzzer_script_bmp.rs	['fuzzer_script_bmp']	[]
/src/image/fuzz/fuzzers/fuzzer_script_png.rs	['fuzzer_script_png']	[]

Directories in report

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

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