High level conclusions

Fuzzers reach 28.21% of cyclomatic complexity.

Fuzzers reach 18.45% of all functions.

Reachability and coverage overview

Functions statically reachable by fuzzers

231 / 1252

Cyclomatic complexity statically reachable by fuzzers

2170 / 7690

Runtime code coverage of functions

178 / 1252

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: json_load_fuzzer

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	20	16.3%
gold	[1:9]	0	0.0%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	102	83.6%
All colors	122	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
4	14	loader_log	call site: 00014	util_SubmitDebugUtilsMessageEXT
2	8	loader_read_entire_file	call site: 00008	create_callback_file
2	23	loader_read_entire_file	call site: 00023	loader_log
2	79	ensure	call site: 00079	loader_free
2	92	print_number	call site: 00092	ensure
1	12	loader_read_entire_file	call site: 00012	loader_log
1	21	loader_calloc	call site: 00021	loader_log
1	66	parse_array	call site: 00066	buffer_skip_whitespace
1	68	loader_cJSON_ParseWithLengthOpts	call site: 00068	loader_log
1	72	loader_instance_heap_free	call site: 00072	loader_cJSON_Delete
1	82	loader_realloc	call site: 00082	loader_free
1	96	print_string	call site: 00096	ensure

Runtime coverage analysis

Covered functions

43

Functions that are reachable but not covered

23

Reachable functions

56

Percentage of reachable functions covered

58.93%

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.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
json_load_fuzzer.c	1
vulkan-loader/loader/loader_json.c	2
fuzz_header.h	1
vulkan-loader/loader/log.c	1
vulkan-loader/loader/debug_utils.c	3
vulkan-loader/loader/generated/vk_object_types.h	1
vulkan-loader/loader/allocation.c	6
vulkan-loader/loader/cJSON.c	24

Fuzzer: settings_fuzzer

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	256	48.2%
gold	[1:9]	0	0.0%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	4	0.75%
lawngreen	50+	271	51.0%
All colors	531	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
149	362	is_json	call site: 00362	loader_add_layer_properties
16	289	log_settings	call site: 00289	loader_log
15	235	parse_device_configurations	call site: 00235	parse_device_configuration
12	121	loader_realloc	call site: 00121	print_number
8	138	print_string_ptr	call site: 00138	print_array
8	147	update_offset	call site: 00147	print_value
8	225	parse_additional_drivers	call site: 00225	parse_additional_driver
5	260	check_if_layer_configurations_are_equal	call site: 00260	check_if_device_configurations_are_equal
4	42	loader_log	call site: 00042	util_SubmitDebugUtilsMessageEXT
4	309	free_loader_settings	call site: 00309	free_driver_configuration
3	513	LLVMFuzzerTestOneInput	call site: 00513	loader_log
2	118	ensure	call site: 00118	loader_free

Runtime coverage analysis

Covered functions

92

Functions that are reachable but not covered

68

Reachable functions

152

Percentage of reachable functions covered

55.26%

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.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
settings_fuzzer.c	3
vulkan-loader/loader/settings.c	28
vulkan-loader/loader/loader_environment.c	1
vulkan-loader/loader/allocation.c	7
vulkan-loader/loader/vk_loader_platform.h	10
vulkan-loader/loader/log.c	4
vulkan-loader/loader/debug_utils.c	3
vulkan-loader/loader/generated/vk_object_types.h	1
vulkan-loader/loader/loader_json.c	5
fuzz_header.h	1
vulkan-loader/loader/cJSON.c	31
vulkan-loader/loader/loader.c	25
vulkan-loader/loader/wsi.c	1

Fuzzer: instance_create_advanced_fuzzer

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	533	45.0%
gold	[1:9]	28	2.36%
yellow	[10:29]	12	1.01%
greenyellow	[30:49]	1	0.08%
lawngreen	50+	610	51.5%
All colors	1184	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
108	909	vkCreateInstance	call site: 00909	loader_validate_instance_extensions
63	843	loader_parse_icd_manifest	call site: 00843	loader_scanned_icd_add
56	1018	loader_destroy_pointer_layer_list	call site: 01018	loader_enable_instance_layers
35	1108	vkCreateInstance	call site: 01108	fill_out_enabled_instance_extensions
32	810	loader_parse_icd_manifest	call site: 00810	loader_cJSON_Print
28	1144	vkCreateInstance	call site: 01144	vkDestroyInstance
16	310	log_settings	call site: 00310	loader_log
14	776	loader_icd_scan	call site: 00776	loader_add_direct_driver
12	153	loader_realloc	call site: 00153	print_number
12	1093	vkCreateInstance	call site: 01093	loader_icd_close_objects
11	345	parse_layers_disable_filter_environment_var	call site: 00345	loader_log
9	267	parse_device_configurations	call site: 00267	parse_device_configuration

Runtime coverage analysis

Covered functions

162

Functions that are reachable but not covered

111

Reachable functions

266

Percentage of reachable functions covered

58.27%

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.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
instance_create_advanced_fuzzer.c	3
fuzz_header.h	3
vulkan-loader/loader/trampoline.c	5
vulkan-loader/loader/log.c	3
vulkan-loader/loader/debug_utils.c	9
vulkan-loader/loader/generated/vk_object_types.h	1
vulkan-loader/loader/allocation.c	11
vulkan-loader/loader/vk_loader_platform.h	13
vulkan-loader/loader/loader.c	95
vulkan-loader/loader/settings.c	26
vulkan-loader/loader/loader_environment.c	10
vulkan-loader/loader/loader_json.c	5
vulkan-loader/loader/cJSON.c	32
vulkan-loader/loader/wsi.c	1
vulkan-loader/loader/generated/vk_loader_extensions.c	3

Fuzzer: instance_create_fuzzer

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	468	39.9%
gold	[1:9]	7	0.59%
yellow	[10:29]	21	1.79%
greenyellow	[30:49]	2	0.17%
lawngreen	50+	674	57.5%
All colors	1172	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
108	902	vkCreateInstance	call site: 00902	loader_validate_instance_extensions
56	1011	loader_destroy_pointer_layer_list	call site: 01011	loader_enable_instance_layers
45	851	loader_handle_load_library_error	call site: 00851	fixup_library_binary_path
35	1101	vkCreateInstance	call site: 01101	fill_out_enabled_instance_extensions
28	1137	vkCreateInstance	call site: 01137	vkDestroyInstance
16	303	log_settings	call site: 00303	loader_log
14	769	loader_icd_scan	call site: 00769	loader_add_direct_driver
12	1086	vkCreateInstance	call site: 01086	loader_icd_close_objects
11	338	parse_layers_disable_filter_environment_var	call site: 00338	loader_log
9	260	parse_device_configurations	call site: 00260	parse_device_configuration
9	789	loader_settings_get_additional_driver_files	call site: 00789	prepend_if_manifest_file
8	250	parse_additional_drivers	call site: 00250	parse_additional_driver

Runtime coverage analysis

Covered functions

168

Functions that are reachable but not covered

101

Reachable functions

263

Percentage of reachable functions covered

61.6%

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.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
instance_create_fuzzer.c	3
vulkan-loader/loader/trampoline.c	5
vulkan-loader/loader/log.c	3
vulkan-loader/loader/debug_utils.c	9
vulkan-loader/loader/generated/vk_object_types.h	1
vulkan-loader/loader/allocation.c	11
vulkan-loader/loader/vk_loader_platform.h	13
vulkan-loader/loader/loader.c	95
vulkan-loader/loader/settings.c	26
vulkan-loader/loader/loader_environment.c	10
vulkan-loader/loader/loader_json.c	5
fuzz_header.h	1
vulkan-loader/loader/cJSON.c	32
vulkan-loader/loader/wsi.c	1
vulkan-loader/loader/generated/vk_loader_extensions.c	3

Fuzzer: instance_enumerate_fuzzer

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	171	22.4%
gold	[1:9]	1	0.13%
yellow	[10:29]	6	0.78%
greenyellow	[30:49]	11	1.44%
lawngreen	50+	572	75.1%
All colors	761	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
16	289	log_settings	call site: 00289	loader_log
14	738	loader_scan_for_implicit_layers	call site: 00738	loader_open_layer_file
12	121	loader_realloc	call site: 00121	print_number
11	331	parse_layers_disable_filter_environment_var	call site: 00331	loader_log
9	235	parse_device_configurations	call site: 00235	parse_device_configuration
8	138	print_string_ptr	call site: 00138	print_array
8	147	update_offset	call site: 00147	print_value
8	225	parse_additional_drivers	call site: 00225	parse_additional_driver
6	539	check_name_matches_filter_environment_var	call site: 00539	name_segment_matches_filter_value
5	260	check_if_layer_configurations_are_equal	call site: 00260	check_if_device_configurations_are_equal
4	42	loader_log	call site: 00042	util_SubmitDebugUtilsMessageEXT
4	309	free_loader_settings	call site: 00309	free_driver_configuration

Runtime coverage analysis

Covered functions

149

Functions that are reachable but not covered

64

Reachable functions

199

Percentage of reachable functions covered

67.84%

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.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
instance_enumerate_fuzzer.c	3
vulkan-loader/loader/trampoline.c	1
vulkan-loader/loader/settings.c	29
vulkan-loader/loader/loader_environment.c	9
vulkan-loader/loader/allocation.c	7
vulkan-loader/loader/vk_loader_platform.h	13
vulkan-loader/loader/log.c	4
vulkan-loader/loader/debug_utils.c	3
vulkan-loader/loader/generated/vk_object_types.h	1
vulkan-loader/loader/loader_json.c	5
fuzz_header.h	1
vulkan-loader/loader/cJSON.c	31
vulkan-loader/loader/loader.c	51
vulkan-loader/loader/wsi.c	1

Fuzzer: instance_enumerate_fuzzer_split_input

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	241	31.6%
gold	[1:9]	41	5.38%
yellow	[10:29]	47	6.17%
greenyellow	[30:49]	29	3.81%
lawngreen	50+	403	52.9%
All colors	761	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
16	289	log_settings	call site: 00289	loader_log
15	716	loader_scan_for_implicit_layers	call site: 00716	loader_append_layer_property
14	486	loader_read_layer_json	call site: 00486	loader_parse_json_array_of_strings
14	738	loader_scan_for_implicit_layers	call site: 00738	loader_open_layer_file
12	121	loader_realloc	call site: 00121	print_number
11	331	parse_layers_disable_filter_environment_var	call site: 00331	loader_log
10	684	verify_meta_layer_component_layers	call site: 00684	verify_meta_layer_component_layers
9	235	parse_device_configurations	call site: 00235	parse_device_configuration
8	138	print_string_ptr	call site: 00138	print_array
8	147	update_offset	call site: 00147	print_value
8	225	parse_additional_drivers	call site: 00225	parse_additional_driver
7	504	loader_read_layer_json	call site: 00504	loader_parse_json_string

Runtime coverage analysis

Covered functions

144

Functions that are reachable but not covered

68

Reachable functions

199

Percentage of reachable functions covered

65.83%

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.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
instance_enumerate_fuzzer.c	3
vulkan-loader/loader/trampoline.c	1
vulkan-loader/loader/settings.c	29
vulkan-loader/loader/loader_environment.c	9
vulkan-loader/loader/allocation.c	7
vulkan-loader/loader/vk_loader_platform.h	13
vulkan-loader/loader/log.c	4
vulkan-loader/loader/debug_utils.c	3
vulkan-loader/loader/generated/vk_object_types.h	1
vulkan-loader/loader/loader_json.c	5
fuzz_header.h	1
vulkan-loader/loader/cJSON.c	31
vulkan-loader/loader/loader.c	51
vulkan-loader/loader/wsi.c	1

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
vkGetDeviceProcAddr	/src/vulkan-loader/loader/trampoline.c	2	['N/A', 'N/A']	3	0	166	36	17	9	0	1155	1145
vkGetInstanceProcAddr	/src/vulkan-loader/loader/trampoline.c	2	['N/A', 'N/A']	7	0	70	19	8	38	0	1026	899
terminator_EnumeratePhysicalDeviceGroups	/src/vulkan-loader/loader/loader.c	3	['N/A', 'N/A', 'N/A']	5	0	1079	223	83	36	0	370	239
vkCreateDevice	/src/vulkan-loader/loader/trampoline.c	4	['N/A', 'N/A', 'N/A', 'N/A']	7	0	26	5	2	48	0	340	133
loader_gpa_instance_terminator	/src/vulkan-loader/loader/loader.c	2	['N/A', 'N/A']	6	0	234	48	23	31	0	324	130
vkEnumeratePhysicalDevices	/src/vulkan-loader/loader/trampoline.c	3	['N/A', 'N/A', 'N/A']	5	0	159	31	12	45	0	310	117
terminator_CreateInstance	/src/vulkan-loader/loader/loader.c	3	['N/A', 'N/A', 'N/A']	6	0	816	168	65	33	0	320	82

Implementing fuzzers that target the above functions will improve reachability such that it becomes:

Functions statically reachable by fuzzers

295 / 1252

Cyclomatic complexity statically reachable by fuzzers

4911 / 7690

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.

json_load_fuzzer.c

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=['loader_log', 'loader_read_entire_file', 'ensure', 'print_number', 'loader_calloc', 'parse_array', 'loader_cJSON_ParseWithLengthOpts', 'loader_instance_heap_free']

settings_fuzzer.c

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=['is_json', 'log_settings', 'parse_device_configurations', 'loader_realloc', 'print_string_ptr', 'update_offset', 'parse_additional_drivers', 'check_if_layer_configurations_are_equal', 'loader_log', 'free_loader_settings']

instance_create_advanced_fuzzer.c

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=['vkCreateInstance', 'loader_parse_icd_manifest', 'loader_destroy_pointer_layer_list', 'log_settings', 'loader_icd_scan', 'loader_realloc']

instance_create_fuzzer.c

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=['vkCreateInstance', 'loader_destroy_pointer_layer_list', 'loader_handle_load_library_error', 'log_settings', 'loader_icd_scan', 'parse_layers_disable_filter_environment_var', 'parse_device_configurations']

instance_enumerate_fuzzer.c

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=['log_settings', 'loader_scan_for_implicit_layers', 'loader_realloc', 'parse_layers_disable_filter_environment_var', 'parse_device_configurations', 'print_string_ptr', 'update_offset', 'parse_additional_drivers', 'check_name_matches_filter_environment_var', 'check_if_layer_configurations_are_equal']

instance_enumerate_fuzzer.c

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=['log_settings', 'loader_scan_for_implicit_layers', 'loader_read_layer_json', 'loader_realloc', 'parse_layers_disable_filter_environment_var', 'verify_meta_layer_component_layers', 'parse_device_configurations', 'print_string_ptr', 'update_offset']

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
print	35	18	51.42%	['instance_create_advanced_fuzzer', 'json_load_fuzzer', 'instance_enumerate_fuzzer', 'settings_fuzzer', 'instance_create_fuzzer', 'instance_enumerate_fuzzer_split_input']
loader_init_global_debug_level	36	7	19.44%	['instance_create_advanced_fuzzer', 'json_load_fuzzer', 'instance_enumerate_fuzzer', 'settings_fuzzer', 'instance_create_fuzzer', 'instance_enumerate_fuzzer_split_input']
parse_additional_drivers	46	9	19.56%	['instance_create_advanced_fuzzer', 'instance_enumerate_fuzzer', 'settings_fuzzer', 'instance_create_fuzzer', 'instance_enumerate_fuzzer_split_input']
parse_device_configurations	48	6	12.5%	['instance_create_advanced_fuzzer', 'instance_enumerate_fuzzer', 'settings_fuzzer', 'instance_create_fuzzer', 'instance_enumerate_fuzzer_split_input']
log_settings	60	29	48.33%	['instance_create_advanced_fuzzer', 'instance_enumerate_fuzzer', 'settings_fuzzer', 'instance_create_fuzzer', 'instance_enumerate_fuzzer_split_input']
get_settings_layers	91	37	40.65%	['instance_create_advanced_fuzzer', 'instance_enumerate_fuzzer', 'settings_fuzzer', 'instance_create_fuzzer', 'instance_enumerate_fuzzer_split_input']
convertCoreObjectToDebugReportObject	88	7	7.954%	['instance_create_advanced_fuzzer', 'json_load_fuzzer', 'instance_enumerate_fuzzer', 'settings_fuzzer', 'instance_create_fuzzer', 'instance_enumerate_fuzzer_split_input']
loader_implicit_layer_is_enabled	64	34	53.12%	['instance_create_advanced_fuzzer', 'instance_create_fuzzer', 'instance_enumerate_fuzzer', 'instance_enumerate_fuzzer_split_input']
loader_scan_for_direct_drivers	69	11	15.94%	['instance_create_advanced_fuzzer', 'instance_create_fuzzer']
loader_icd_scan	113	62	54.86%	['instance_create_advanced_fuzzer', 'instance_create_fuzzer']
vk_string_validate	40	16	40.0%	['instance_create_advanced_fuzzer', 'instance_create_fuzzer', 'instance_enumerate_fuzzer', 'instance_enumerate_fuzzer_split_input']
determine_filter_type	48	18	37.5%	['instance_create_advanced_fuzzer', 'instance_create_fuzzer', 'instance_enumerate_fuzzer', 'instance_enumerate_fuzzer_split_input']
parse_layers_disable_filter_environment_var	60	12	20.0%	['instance_create_advanced_fuzzer', 'instance_create_fuzzer', 'instance_enumerate_fuzzer', 'instance_enumerate_fuzzer_split_input']
check_name_matches_filter_environment_var	40	19	47.5%	['instance_create_advanced_fuzzer', 'instance_create_fuzzer', 'instance_enumerate_fuzzer', 'instance_enumerate_fuzzer_split_input']
vkCreateInstance	208	87	41.82%	['instance_create_advanced_fuzzer', 'instance_create_fuzzer']
loader_scanned_icd_add	159	27	16.98%	['instance_create_advanced_fuzzer', 'instance_create_fuzzer']
vkEnumerateInstanceExtensionProperties	67	33	49.25%	['instance_enumerate_fuzzer', 'instance_enumerate_fuzzer_split_input']

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/vulkan-loader/loader/loader.c	['settings_fuzzer', 'instance_create_advanced_fuzzer', 'instance_create_fuzzer', 'instance_enumerate_fuzzer', 'instance_enumerate_fuzzer_split_input']	['settings_fuzzer', 'instance_create_advanced_fuzzer', 'instance_create_fuzzer', 'instance_enumerate_fuzzer', 'instance_enumerate_fuzzer_split_input']
/src/vulkan-loader/loader/unknown_function_handling.c	[]	[]
/src/vulkan-loader/loader/allocation.c	['json_load_fuzzer', 'settings_fuzzer', 'instance_create_advanced_fuzzer', 'instance_create_fuzzer', 'instance_enumerate_fuzzer', 'instance_enumerate_fuzzer_split_input']	['json_load_fuzzer', 'settings_fuzzer', 'instance_create_advanced_fuzzer', 'instance_create_fuzzer', 'instance_enumerate_fuzzer', 'instance_enumerate_fuzzer_split_input']
/src/vulkan-loader/loader/settings.c	['settings_fuzzer', 'instance_create_advanced_fuzzer', 'instance_create_fuzzer', 'instance_enumerate_fuzzer', 'instance_enumerate_fuzzer_split_input']	['settings_fuzzer', 'instance_create_advanced_fuzzer', 'instance_create_fuzzer', 'instance_enumerate_fuzzer', 'instance_enumerate_fuzzer_split_input']
/src/vulkan-loader/loader/log.c	['json_load_fuzzer', 'settings_fuzzer', 'instance_create_advanced_fuzzer', 'instance_create_fuzzer', 'instance_enumerate_fuzzer', 'instance_enumerate_fuzzer_split_input']	['json_load_fuzzer', 'settings_fuzzer', 'instance_create_advanced_fuzzer', 'instance_create_fuzzer', 'instance_enumerate_fuzzer', 'instance_enumerate_fuzzer_split_input']
/src/vulkan-loader/loader/vk_loader_platform.h	['settings_fuzzer', 'instance_create_advanced_fuzzer', 'instance_create_fuzzer', 'instance_enumerate_fuzzer', 'instance_enumerate_fuzzer_split_input']	['settings_fuzzer', 'instance_create_advanced_fuzzer', 'instance_create_fuzzer', 'instance_enumerate_fuzzer', 'instance_enumerate_fuzzer_split_input']
/src/json_load_fuzzer.c	['json_load_fuzzer']	['json_load_fuzzer']
/src/fuzz_header.h	['json_load_fuzzer', 'settings_fuzzer', 'instance_create_advanced_fuzzer', 'instance_create_fuzzer', 'instance_enumerate_fuzzer', 'instance_enumerate_fuzzer_split_input']	['settings_fuzzer', 'instance_create_advanced_fuzzer', 'instance_create_fuzzer', 'instance_enumerate_fuzzer', 'instance_enumerate_fuzzer_split_input']
/src/vulkan-loader/loader/loader.h	[]	[]
/src/vulkan-loader/loader/terminator.c	[]	[]
/src/vulkan-loader/loader/trampoline.c	['instance_create_advanced_fuzzer', 'instance_create_fuzzer', 'instance_enumerate_fuzzer', 'instance_enumerate_fuzzer_split_input']	['instance_create_advanced_fuzzer', 'instance_create_fuzzer', 'instance_enumerate_fuzzer', 'instance_enumerate_fuzzer_split_input']
/src/vulkan-loader/loader/gpa_helper.c	[]	[]
/src/instance_create_fuzzer.c	['instance_create_fuzzer']	['instance_create_fuzzer']
/src/vulkan-loader/loader/generated/vk_object_types.h	['json_load_fuzzer', 'settings_fuzzer', 'instance_create_advanced_fuzzer', 'instance_create_fuzzer', 'instance_enumerate_fuzzer', 'instance_enumerate_fuzzer_split_input']	['instance_create_advanced_fuzzer', 'instance_create_fuzzer']
/src/vulkan-loader/loader/extension_manual.c	[]	[]
/src/vulkan-loader/loader/phys_dev_ext.c	[]	[]
/src/vulkan-loader/loader/debug_utils.c	['json_load_fuzzer', 'settings_fuzzer', 'instance_create_advanced_fuzzer', 'instance_create_fuzzer', 'instance_enumerate_fuzzer', 'instance_enumerate_fuzzer_split_input']	['instance_create_advanced_fuzzer', 'instance_create_fuzzer']
/src/vulkan-loader/loader/dev_ext_trampoline.c	[]	[]
/src/vulkan-loader/loader/loader_json.c	['json_load_fuzzer', 'settings_fuzzer', 'instance_create_advanced_fuzzer', 'instance_create_fuzzer', 'instance_enumerate_fuzzer', 'instance_enumerate_fuzzer_split_input']	['json_load_fuzzer', 'settings_fuzzer', 'instance_create_advanced_fuzzer', 'instance_create_fuzzer', 'instance_enumerate_fuzzer', 'instance_enumerate_fuzzer_split_input']
/src/instance_enumerate_fuzzer.c	['instance_enumerate_fuzzer', 'instance_enumerate_fuzzer_split_input']	['instance_enumerate_fuzzer', 'instance_enumerate_fuzzer_split_input']
/src/instance_create_advanced_fuzzer.c	['instance_create_advanced_fuzzer']	['instance_create_advanced_fuzzer']
/src/settings_fuzzer.c	['settings_fuzzer']	['settings_fuzzer']
/src/vulkan-loader/loader/wsi.c	['settings_fuzzer', 'instance_create_advanced_fuzzer', 'instance_create_fuzzer', 'instance_enumerate_fuzzer', 'instance_enumerate_fuzzer_split_input']	['instance_create_advanced_fuzzer', 'instance_create_fuzzer', 'instance_enumerate_fuzzer', 'instance_enumerate_fuzzer_split_input']
/src/vulkan-loader/loader/loader_linux.c	[]	[]
/src/vulkan-loader/loader/loader_common.h	[]	[]
/src/vulkan-loader/loader/generated/vk_loader_extensions.c	['instance_create_advanced_fuzzer', 'instance_create_fuzzer']	[]
/src/vulkan-loader/loader/loader_environment.c	['settings_fuzzer', 'instance_create_advanced_fuzzer', 'instance_create_fuzzer', 'instance_enumerate_fuzzer', 'instance_enumerate_fuzzer_split_input']	['settings_fuzzer', 'instance_create_advanced_fuzzer', 'instance_create_fuzzer', 'instance_enumerate_fuzzer', 'instance_enumerate_fuzzer_split_input']
/src/vulkan-loader/loader/cJSON.c	['json_load_fuzzer', 'settings_fuzzer', 'instance_create_advanced_fuzzer', 'instance_create_fuzzer', 'instance_enumerate_fuzzer', 'instance_enumerate_fuzzer_split_input']	['json_load_fuzzer', 'settings_fuzzer', 'instance_create_advanced_fuzzer', 'instance_create_fuzzer', 'instance_enumerate_fuzzer', 'instance_enumerate_fuzzer_split_input']

Directories in report

Directory
/src/
/src/vulkan-loader/loader/generated/
/src/vulkan-loader/loader/