High level conclusions

Fuzzers reach 28.26% of cyclomatic complexity.

Fuzzers reach 18.58% of all functions.

Reachability and coverage overview

Functions statically reachable by fuzzers

233 / 1254

Cyclomatic complexity statically reachable by fuzzers

2184 / 7728

Runtime code coverage of functions

179 / 1254

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	25	19.5%
gold	[1:9]	0	0.0%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	103	80.4%
All colors	128	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
8	14	loader_log	call site: 00014	util_SubmitDebugUtilsMessageEXT
2	8	loader_read_entire_file	call site: 00008	create_callback_file
2	27	loader_read_entire_file	call site: 00027	loader_log
2	85	ensure	call site: 00085	loader_free
2	98	print_number	call site: 00098	ensure
1	12	loader_read_entire_file	call site: 00012	loader_log
1	25	loader_calloc	call site: 00025	loader_log
1	50	parse_number	call site: 00050	loader_free
1	72	parse_array	call site: 00072	buffer_skip_whitespace
1	74	loader_cJSON_ParseWithLengthOpts	call site: 00074	loader_log
1	78	loader_instance_heap_free	call site: 00078	loader_cJSON_Delete
1	88	loader_realloc	call site: 00088	loader_free

Runtime coverage analysis

Covered functions

43

Functions that are reachable but not covered

27

Reachable functions

60

Percentage of reachable functions covered

55.0%

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.

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/vk_loader_platform.h	2
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	149	27.9%
gold	[1:9]	3	0.56%
yellow	[10:29]	5	0.93%
greenyellow	[30:49]	15	2.80%
lawngreen	50+	362	67.7%
All colors	534	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	293	log_settings	call site: 00293	loader_log
12	127	loader_realloc	call site: 00127	print_number
9	241	parse_device_configurations	call site: 00241	parse_device_configuration
8	144	print_string_ptr	call site: 00144	print_array
8	153	update_offset	call site: 00153	print_value
8	231	parse_additional_drivers	call site: 00231	parse_additional_driver
7	443	loader_read_layer_json	call site: 00443	loader_parse_json_string
7	484	loader_read_layer_json	call site: 00484	loader_parse_json_string
7	500	loader_read_layer_json	call site: 00500	loader_read_layer_json
6	436	loader_read_layer_json	call site: 00436	loader_log
5	264	check_if_layer_configurations_are_equal	call site: 00264	check_if_device_configurations_are_equal
4	45	loader_platform_thread_lock_mutex	call site: 00045	debug_utils_AnnotObjectToDebugReportObject

Runtime coverage analysis

Covered functions

110

Functions that are reachable but not covered

50

Reachable functions

152

Percentage of reachable functions covered

67.11%

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_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	338	44.0%
gold	[1:9]	25	3.25%
yellow	[10:29]	22	2.86%
greenyellow	[30:49]	19	2.47%
lawngreen	50+	363	47.3%
All colors	767	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
60	464	loader_read_layer_json	call site: 00464	loader_parse_json_array_of_strings
32	685	loader_scan_for_implicit_layers	call site: 00685	update_meta_layer_extensions_from_component_layers
23	541	release_current_settings_lock	call site: 00541	loader_implicit_layer_is_enabled
22	287	log_settings	call site: 00287	loader_log
19	722	loader_scan_for_implicit_layers	call site: 00722	loader_append_layer_property
15	669	remove_all_non_valid_override_layers	call site: 00669	loader_parse_instance_layers
14	744	loader_scan_for_implicit_layers	call site: 00744	loader_open_layer_file
12	127	loader_realloc	call site: 00127	print_number
11	336	parse_layers_disable_filter_environment_var	call site: 00336	loader_log
9	241	parse_device_configurations	call site: 00241	parse_device_configuration
8	144	print_string_ptr	call site: 00144	print_array
8	153	update_offset	call site: 00153	print_value

Runtime coverage analysis

Covered functions

125

Functions that are reachable but not covered

86

Reachable functions

200

Percentage of reachable functions covered

57.0%

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.

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	52
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	519	44.0%
gold	[1:9]	23	1.95%
yellow	[10:29]	4	0.33%
greenyellow	[30:49]	3	0.25%
lawngreen	50+	629	53.3%
All colors	1178	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
150	919	vkCreateInstance	call site: 00919	loader_enable_instance_layers
101	816	loader_settings_get_additional_driver_files	call site: 00816	loader_parse_icd_manifest
35	1103	vkCreateInstance	call site: 01103	fill_out_enabled_instance_extensions
27	1139	vkCreateInstance	call site: 01139	vkDestroyInstance
16	314	log_settings	call site: 00314	loader_log
14	782	loader_icd_scan	call site: 00782	loader_add_direct_driver
13	802	loader_settings_get_additional_driver_files	call site: 00802	prepend_if_manifest_file
12	158	loader_realloc	call site: 00158	print_number
12	1088	vkCreateInstance	call site: 01088	loader_icd_close_objects
11	351	parse_layers_disable_filter_environment_var	call site: 00351	loader_log
9	272	parse_device_configurations	call site: 00272	parse_device_configuration
8	175	print_string_ptr	call site: 00175	print_array

Runtime coverage analysis

Covered functions

162

Functions that are reachable but not covered

114

Reachable functions

269

Percentage of reachable functions covered

57.62%

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/vk_loader_platform.h	13
vulkan-loader/loader/generated/vk_object_types.h	1
vulkan-loader/loader/allocation.c	11
vulkan-loader/loader/loader.c	97
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	449	38.5%
gold	[1:9]	8	0.68%
yellow	[10:29]	6	0.51%
greenyellow	[30:49]	14	1.20%
lawngreen	50+	689	59.0%
All colors	1166	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
150	912	vkCreateInstance	call site: 00912	loader_enable_instance_layers
45	861	loader_handle_load_library_error	call site: 00861	fixup_library_binary_path
35	1096	vkCreateInstance	call site: 01096	fill_out_enabled_instance_extensions
27	1132	vkCreateInstance	call site: 01132	vkDestroyInstance
16	307	log_settings	call site: 00307	loader_log
14	775	loader_icd_scan	call site: 00775	loader_add_direct_driver
13	795	loader_settings_get_additional_driver_files	call site: 00795	prepend_if_manifest_file
12	1081	vkCreateInstance	call site: 01081	loader_icd_close_objects
11	344	parse_layers_disable_filter_environment_var	call site: 00344	loader_log
9	265	parse_device_configurations	call site: 00265	parse_device_configuration
8	255	parse_additional_drivers	call site: 00255	parse_additional_driver
6	667	check_name_matches_filter_environment_var	call site: 00667	name_segment_matches_filter_value

Runtime coverage analysis

Covered functions

169

Functions that are reachable but not covered

103

Reachable functions

266

Percentage of reachable functions covered

61.28%

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/vk_loader_platform.h	13
vulkan-loader/loader/generated/vk_object_types.h	1
vulkan-loader/loader/allocation.c	11
vulkan-loader/loader/loader.c	97
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	164	21.3%
gold	[1:9]	2	0.26%
yellow	[10:29]	8	1.04%
greenyellow	[30:49]	8	1.04%
lawngreen	50+	585	76.2%
All colors	767	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	293	log_settings	call site: 00293	loader_log
14	744	loader_scan_for_implicit_layers	call site: 00744	loader_open_layer_file
12	127	loader_realloc	call site: 00127	print_number
11	336	parse_layers_disable_filter_environment_var	call site: 00336	loader_log
9	241	parse_device_configurations	call site: 00241	parse_device_configuration
8	144	print_string_ptr	call site: 00144	print_array
8	153	update_offset	call site: 00153	print_value
8	231	parse_additional_drivers	call site: 00231	parse_additional_driver
6	544	check_name_matches_filter_environment_var	call site: 00544	name_segment_matches_filter_value
5	264	check_if_layer_configurations_are_equal	call site: 00264	check_if_device_configurations_are_equal
4	45	loader_platform_thread_lock_mutex	call site: 00045	debug_utils_AnnotObjectToDebugReportObject
4	313	free_loader_settings	call site: 00313	free_driver_configuration

Runtime coverage analysis

Covered functions

150

Functions that are reachable but not covered

64

Reachable functions

200

Percentage of reachable functions covered

68.0%

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.

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	52
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	1231	258	96	45	0	431	288
vkCreateDevice	/src/vulkan-loader/loader/trampoline.c	4	['N/A', 'N/A', 'N/A', 'N/A']	7	0	24	5	2	49	0	344	135
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	171	31	12	46	0	314	119
terminator_CreateInstance	/src/vulkan-loader/loader/loader.c	3	['N/A', 'N/A', 'N/A']	6	0	814	167	63	39	0	330	80

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

Functions statically reachable by fuzzers

300 / 1254

Cyclomatic complexity statically reachable by fuzzers

4976 / 7728

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_number', 'parse_array', 'loader_cJSON_ParseWithLengthOpts']

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=['log_settings', 'loader_realloc', 'parse_device_configurations', 'print_string_ptr', 'update_offset', 'parse_additional_drivers', 'loader_read_layer_json']

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=['loader_read_layer_json', 'loader_scan_for_implicit_layers', 'release_current_settings_lock', 'log_settings', 'remove_all_non_valid_override_layers', 'loader_realloc', 'parse_layers_disable_filter_environment_var', 'parse_device_configurations']

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_settings_get_additional_driver_files', 'log_settings', 'loader_icd_scan', 'loader_realloc', 'parse_layers_disable_filter_environment_var']

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_handle_load_library_error', 'log_settings', 'loader_icd_scan', 'loader_settings_get_additional_driver_files', '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']

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_enumerate_fuzzer', 'instance_create_advanced_fuzzer', 'instance_create_fuzzer', 'json_load_fuzzer', 'instance_enumerate_fuzzer_split_input', 'settings_fuzzer']
loader_init_global_debug_level	37	8	21.62%	['instance_enumerate_fuzzer', 'instance_create_advanced_fuzzer', 'instance_create_fuzzer', 'json_load_fuzzer', 'instance_enumerate_fuzzer_split_input', 'settings_fuzzer']
parse_additional_drivers	46	9	19.56%	['instance_enumerate_fuzzer', 'instance_create_advanced_fuzzer', 'instance_create_fuzzer', 'instance_enumerate_fuzzer_split_input', 'settings_fuzzer']
parse_device_configurations	48	6	12.5%	['instance_enumerate_fuzzer', 'instance_create_advanced_fuzzer', 'instance_create_fuzzer', 'instance_enumerate_fuzzer_split_input', 'settings_fuzzer']
log_settings	60	29	48.33%	['instance_enumerate_fuzzer', 'instance_create_advanced_fuzzer', 'instance_create_fuzzer', 'instance_enumerate_fuzzer_split_input', 'settings_fuzzer']
vk_string_validate	43	18	41.86%	['instance_create_advanced_fuzzer', 'instance_create_fuzzer', 'instance_enumerate_fuzzer', 'instance_enumerate_fuzzer_split_input']
determine_filter_type	46	18	39.13%	['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']
vkEnumerateInstanceExtensionProperties	67	33	49.25%	['instance_enumerate_fuzzer', 'instance_enumerate_fuzzer_split_input']
util_SubmitDebugUtilsMessageEXT	31	17	54.83%	['instance_enumerate_fuzzer', 'instance_create_advanced_fuzzer', 'instance_create_fuzzer', 'json_load_fuzzer', 'instance_enumerate_fuzzer_split_input', 'settings_fuzzer']
convertCoreObjectToDebugReportObject	88	7	7.954%	['instance_enumerate_fuzzer', 'instance_create_advanced_fuzzer', 'instance_create_fuzzer', 'json_load_fuzzer', 'instance_enumerate_fuzzer_split_input', 'settings_fuzzer']
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']
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	207	86	41.54%	['instance_create_advanced_fuzzer', 'instance_create_fuzzer']
loader_scanned_icd_add	166	30	18.07%	['instance_create_advanced_fuzzer', 'instance_create_fuzzer']

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

Directories in report

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