High level conclusions

Fuzzers reach 29.07% of cyclomatic complexity.

Fuzzers reach 19.58% of all functions.

Reachability and coverage overview

Functions statically reachable by fuzzers

228 / 1164

Cyclomatic complexity statically reachable by fuzzers

2126 / 7312

Runtime code coverage of functions

174 / 1164

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	154	29.4%
gold	[1:9]	5	0.95%
yellow	[10:29]	9	1.72%
greenyellow	[30:49]	2	0.38%
lawngreen	50+	353	67.4%
All colors	523	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	294	log_settings	call site: 00294	loader_log
12	121	loader_realloc	call site: 00121	print_number
11	439	loader_read_layer_json	call site: 00439	loader_parse_json_string
9	234	parse_device_configurations	call site: 00234	parse_device_configuration
8	138	print_string_ptr	call site: 00138	print_array
8	147	update_offset	call site: 00147	print_value
8	224	parse_additional_drivers	call site: 00224	parse_additional_driver
7	431	loader_read_layer_json	call site: 00431	loader_parse_json_string
7	472	loader_read_layer_json	call site: 00472	loader_parse_json_string
6	264	update_global_loader_settings	call site: 00264	check_if_device_configurations_are_equal
4	42	loader_log	call site: 00042	util_SubmitDebugUtilsMessageEXT
4	258	free_loader_settings	call site: 00258	free_driver_configuration

Runtime coverage analysis

Covered functions

105

Functions that are reachable but not covered

54

Reachable functions

151

Percentage of reachable functions covered

64.24%

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	24
vulkan-loader/loader/wsi.c	1

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	458	39.1%
gold	[1:9]	8	0.68%
yellow	[10:29]	6	0.51%
greenyellow	[30:49]	1	0.08%
lawngreen	50+	697	59.5%
All colors	1170	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
109	893	loader_icd_scan	call site: 00893	loader_validate_instance_extensions
60	1003	loader_destroy_pointer_layer_list	call site: 01003	loader_enable_instance_layers
41	847	loader_handle_load_library_error	call site: 00847	fixup_library_binary_path
35	1099	vkCreateInstance	call site: 01099	fill_out_enabled_instance_extensions
28	1135	vkCreateInstance	call site: 01135	vkDestroyInstance
16	294	log_settings	call site: 00294	loader_log
13	765	loader_icd_scan	call site: 00765	loader_add_direct_driver
12	1085	vkCreateInstance	call site: 01085	loader_icd_close_objects
10	330	parse_layers_disable_filter_environment_var	call site: 00330	loader_log
10	784	loader_settings_get_additional_driver_files	call site: 00784	prepend_if_manifest_file
9	251	parse_device_configurations	call site: 00251	parse_device_configuration
8	241	parse_additional_drivers	call site: 00241	parse_additional_driver

Runtime coverage analysis

Covered functions

164

Functions that are reachable but not covered

102

Reachable functions

260

Percentage of reachable functions covered

60.77%

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	4
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	93
vulkan-loader/loader/settings.c	26
vulkan-loader/loader/loader_environment.c	9
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_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	524	44.3%
gold	[1:9]	14	1.18%
yellow	[10:29]	12	1.01%
greenyellow	[30:49]	23	1.94%
lawngreen	50+	609	51.5%
All colors	1182	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
109	900	loader_icd_scan	call site: 00900	loader_validate_instance_extensions
60	1010	loader_destroy_pointer_layer_list	call site: 01010	loader_enable_instance_layers
59	839	loader_parse_icd_manifest	call site: 00839	loader_scanned_icd_add
35	1106	vkCreateInstance	call site: 01106	fill_out_enabled_instance_extensions
32	806	loader_parse_icd_manifest	call site: 00806	loader_cJSON_Print
28	1142	vkCreateInstance	call site: 01142	vkDestroyInstance
16	301	log_settings	call site: 00301	loader_log
13	772	loader_icd_scan	call site: 00772	loader_add_direct_driver
12	145	loader_realloc	call site: 00145	print_number
12	1092	vkCreateInstance	call site: 01092	loader_icd_close_objects
10	337	parse_layers_disable_filter_environment_var	call site: 00337	loader_log
10	791	loader_settings_get_additional_driver_files	call site: 00791	prepend_if_manifest_file

Runtime coverage analysis

Covered functions

158

Functions that are reachable but not covered

112

Reachable functions

263

Percentage of reachable functions covered

57.41%

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	4
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	93
vulkan-loader/loader/settings.c	26
vulkan-loader/loader/loader_environment.c	9
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_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	275	35.9%
gold	[1:9]	54	7.04%
yellow	[10:29]	18	2.34%
greenyellow	[30:49]	24	3.13%
lawngreen	50+	395	51.5%
All colors	766	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
21	692	verify_meta_layer_component_layers	call site: 00692	update_meta_layer_extensions_from_component_layers
16	294	log_settings	call site: 00294	loader_log
14	462	loader_read_layer_json	call site: 00462	loader_parse_json_string
14	477	loader_read_layer_json	call site: 00477	loader_parse_json_array_of_strings
14	743	loader_scan_for_implicit_layers	call site: 00743	loader_open_layer_file
12	121	loader_realloc	call site: 00121	print_number
10	329	parse_layers_disable_filter_environment_var	call site: 00329	loader_log
9	234	parse_device_configurations	call site: 00234	parse_device_configuration
8	138	print_string_ptr	call site: 00138	print_array
8	147	update_offset	call site: 00147	print_value
8	224	parse_additional_drivers	call site: 00224	parse_additional_driver
7	454	loader_read_layer_json	call site: 00454	loader_parse_json_string

Runtime coverage analysis

Covered functions

137

Functions that are reachable but not covered

74

Reachable functions

199

Percentage of reachable functions covered

62.81%

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	8
vulkan-loader/loader/allocation.c	8
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	50
vulkan-loader/loader/wsi.c	1

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	168	21.9%
gold	[1:9]	0	0.0%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	8	1.04%
lawngreen	50+	590	77.0%
All colors	766	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	294	log_settings	call site: 00294	loader_log
14	743	loader_scan_for_implicit_layers	call site: 00743	loader_open_layer_file
12	121	loader_realloc	call site: 00121	print_number
10	329	parse_layers_disable_filter_environment_var	call site: 00329	loader_log
9	234	parse_device_configurations	call site: 00234	parse_device_configuration
8	138	print_string_ptr	call site: 00138	print_array
8	147	update_offset	call site: 00147	print_value
8	224	parse_additional_drivers	call site: 00224	parse_additional_driver
6	264	update_global_loader_settings	call site: 00264	check_if_device_configurations_are_equal
6	531	check_name_matches_filter_environment_var	call site: 00531	strcmp
4	42	loader_log	call site: 00042	util_SubmitDebugUtilsMessageEXT
4	258	free_loader_settings	call site: 00258	free_driver_configuration

Runtime coverage analysis

Covered functions

148

Functions that are reachable but not covered

65

Reachable functions

199

Percentage of reachable functions covered

67.34%

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	8
vulkan-loader/loader/allocation.c	8
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	50
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	8	0	1079	1069
vkGetInstanceProcAddr	/src/vulkan-loader/loader/trampoline.c	2	['N/A', 'N/A']	7	0	70	19	8	37	0	945	824
terminator_EnumeratePhysicalDeviceGroups	/src/vulkan-loader/loader/loader.c	3	['N/A', 'N/A', 'N/A']	5	0	1102	221	83	36	0	367	236
vkCreateDevice	/src/vulkan-loader/loader/trampoline.c	4	['N/A', 'N/A', 'N/A', 'N/A']	7	0	26	5	2	48	0	337	132
loader_gpa_instance_terminator	/src/vulkan-loader/loader/loader.c	2	['N/A', 'N/A']	6	0	234	48	23	30	0	313	125
vkEnumeratePhysicalDevices	/src/vulkan-loader/loader/trampoline.c	3	['N/A', 'N/A', 'N/A']	5	0	159	31	12	45	0	309	116
terminator_CreateInstance	/src/vulkan-loader/loader/loader.c	3	['N/A', 'N/A', 'N/A']	6	0	808	166	64	33	0	318	81
terminator_DebugReportMessageEXT	/src/vulkan-loader/loader/debug_utils.c	8	['N/A', 'int', 'int', 'size_t', 'size_t', 'int', 'N/A', 'N/A']	3	0	53	12	5	8	0	79	71
terminator_CreateDisplayPlaneSurfaceKHR	/src/vulkan-loader/loader/wsi.c	4	['N/A', 'N/A', 'N/A', 'N/A']	7	0	82	10	5	27	0	197	59
vkEnumeratePhysicalDeviceGroups	/src/vulkan-loader/loader/trampoline.c	3	['N/A', 'N/A', 'N/A']	6	0	157	30	12	35	0	257	54

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

Functions statically reachable by fuzzers

305 / 1164

Cyclomatic complexity statically reachable by fuzzers

4889 / 7312

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

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

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

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

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', 'update_global_loader_settings', 'check_name_matches_filter_environment_var']

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%	['json_load_fuzzer', 'instance_enumerate_fuzzer_split_input', 'settings_fuzzer', 'instance_enumerate_fuzzer', 'instance_create_fuzzer', 'instance_create_advanced_fuzzer']
loader_init_global_debug_level	36	7	19.44%	['json_load_fuzzer', 'instance_enumerate_fuzzer_split_input', 'settings_fuzzer', 'instance_enumerate_fuzzer', 'instance_create_fuzzer', 'instance_create_advanced_fuzzer']
parse_additional_drivers	46	9	19.56%	['instance_enumerate_fuzzer_split_input', 'settings_fuzzer', 'instance_enumerate_fuzzer', 'instance_create_fuzzer', 'instance_create_advanced_fuzzer']
parse_device_configurations	44	6	13.63%	['instance_enumerate_fuzzer_split_input', 'settings_fuzzer', 'instance_enumerate_fuzzer', 'instance_create_fuzzer', 'instance_create_advanced_fuzzer']
log_settings	58	27	46.55%	['instance_enumerate_fuzzer_split_input', 'settings_fuzzer', 'instance_enumerate_fuzzer', 'instance_create_fuzzer', 'instance_create_advanced_fuzzer']
convertCoreObjectToDebugReportObject	88	7	7.954%	['json_load_fuzzer', 'instance_enumerate_fuzzer_split_input', 'settings_fuzzer', 'instance_enumerate_fuzzer', 'instance_create_fuzzer', 'instance_create_advanced_fuzzer']
loader_scan_for_direct_drivers	69	11	15.94%	['instance_create_fuzzer', 'instance_create_advanced_fuzzer']
loader_scanned_icd_add	158	27	17.08%	['instance_create_fuzzer', 'instance_create_advanced_fuzzer']
loader_icd_scan	113	62	54.86%	['instance_create_fuzzer', 'instance_create_advanced_fuzzer']
vk_string_validate	36	16	44.44%	['instance_enumerate_fuzzer_split_input', 'instance_create_fuzzer', 'instance_create_advanced_fuzzer', 'instance_enumerate_fuzzer']
determine_filter_type	46	18	39.13%	['instance_enumerate_fuzzer_split_input', 'instance_create_fuzzer', 'instance_create_advanced_fuzzer', 'instance_enumerate_fuzzer']
parse_layers_disable_filter_environment_var	63	12	19.04%	['instance_enumerate_fuzzer_split_input', 'instance_create_fuzzer', 'instance_create_advanced_fuzzer', 'instance_enumerate_fuzzer']
check_name_matches_filter_environment_var	48	25	52.08%	['instance_enumerate_fuzzer_split_input', 'instance_create_fuzzer', 'instance_create_advanced_fuzzer', 'instance_enumerate_fuzzer']
vkCreateInstance	211	88	41.70%	['instance_create_fuzzer', 'instance_create_advanced_fuzzer']
vkEnumerateInstanceExtensionProperties	67	33	49.25%	['instance_enumerate_fuzzer_split_input', 'instance_enumerate_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/vulkan-loader/loader/debug_utils.c	['json_load_fuzzer', 'settings_fuzzer', 'instance_create_fuzzer', 'instance_create_advanced_fuzzer', 'instance_enumerate_fuzzer_split_input', 'instance_enumerate_fuzzer']	['instance_create_fuzzer', 'instance_create_advanced_fuzzer']
/src/vulkan-loader/loader/cJSON.c	['json_load_fuzzer', 'settings_fuzzer', 'instance_create_fuzzer', 'instance_create_advanced_fuzzer', 'instance_enumerate_fuzzer_split_input', 'instance_enumerate_fuzzer']	['json_load_fuzzer', 'settings_fuzzer', 'instance_create_fuzzer', 'instance_create_advanced_fuzzer', 'instance_enumerate_fuzzer_split_input', 'instance_enumerate_fuzzer']
/src/instance_create_advanced_fuzzer.c	['instance_create_advanced_fuzzer']	['instance_create_advanced_fuzzer']
/src/vulkan-loader/loader/log.c	['json_load_fuzzer', 'settings_fuzzer', 'instance_create_fuzzer', 'instance_create_advanced_fuzzer', 'instance_enumerate_fuzzer_split_input', 'instance_enumerate_fuzzer']	['json_load_fuzzer', 'settings_fuzzer', 'instance_create_fuzzer', 'instance_create_advanced_fuzzer', 'instance_enumerate_fuzzer_split_input', 'instance_enumerate_fuzzer']
/src/vulkan-loader/loader/generated/vk_loader_extensions.c	['instance_create_fuzzer', 'instance_create_advanced_fuzzer']	[]
/src/vulkan-loader/loader/loader.c	['settings_fuzzer', 'instance_create_fuzzer', 'instance_create_advanced_fuzzer', 'instance_enumerate_fuzzer_split_input', 'instance_enumerate_fuzzer']	['settings_fuzzer', 'instance_create_fuzzer', 'instance_create_advanced_fuzzer', 'instance_enumerate_fuzzer_split_input', 'instance_enumerate_fuzzer']
/src/vulkan-loader/loader/loader_linux.c	[]	[]
/src/vulkan-loader/loader/wsi.c	['settings_fuzzer', 'instance_create_fuzzer', 'instance_create_advanced_fuzzer', 'instance_enumerate_fuzzer_split_input', 'instance_enumerate_fuzzer']	['instance_create_fuzzer', 'instance_create_advanced_fuzzer', 'instance_enumerate_fuzzer']
/src/vulkan-loader/loader/gpa_helper.c	[]	[]
/src/vulkan-loader/loader/loader_environment.c	['settings_fuzzer', 'instance_create_fuzzer', 'instance_create_advanced_fuzzer', 'instance_enumerate_fuzzer_split_input', 'instance_enumerate_fuzzer']	['settings_fuzzer', 'instance_create_fuzzer', 'instance_create_advanced_fuzzer', 'instance_enumerate_fuzzer_split_input', 'instance_enumerate_fuzzer']
/src/vulkan-loader/loader/extension_manual.c	[]	[]
/src/fuzz_header.h	['json_load_fuzzer', 'settings_fuzzer', 'instance_create_fuzzer', 'instance_create_advanced_fuzzer', 'instance_enumerate_fuzzer_split_input', 'instance_enumerate_fuzzer']	['settings_fuzzer', 'instance_create_fuzzer', 'instance_create_advanced_fuzzer', 'instance_enumerate_fuzzer_split_input', 'instance_enumerate_fuzzer']
/src/vulkan-loader/loader/loader_json.c	['json_load_fuzzer', 'settings_fuzzer', 'instance_create_fuzzer', 'instance_create_advanced_fuzzer', 'instance_enumerate_fuzzer_split_input', 'instance_enumerate_fuzzer']	['json_load_fuzzer', 'settings_fuzzer', 'instance_create_fuzzer', 'instance_create_advanced_fuzzer', 'instance_enumerate_fuzzer_split_input', 'instance_enumerate_fuzzer']
/src/vulkan-loader/loader/loader.h	[]	[]
/src/vulkan-loader/loader/dev_ext_trampoline.c	[]	[]
/src/vulkan-loader/loader/terminator.c	[]	[]
/src/settings_fuzzer.c	['settings_fuzzer']	['settings_fuzzer']
/src/instance_enumerate_fuzzer.c	['instance_enumerate_fuzzer_split_input', 'instance_enumerate_fuzzer']	['instance_enumerate_fuzzer_split_input', 'instance_enumerate_fuzzer']
/src/json_load_fuzzer.c	['json_load_fuzzer']	['json_load_fuzzer']
/src/vulkan-loader/loader/settings.c	['settings_fuzzer', 'instance_create_fuzzer', 'instance_create_advanced_fuzzer', 'instance_enumerate_fuzzer_split_input', 'instance_enumerate_fuzzer']	['settings_fuzzer', 'instance_create_fuzzer', 'instance_create_advanced_fuzzer', 'instance_enumerate_fuzzer_split_input', 'instance_enumerate_fuzzer']
/src/vulkan-loader/loader/trampoline.c	['instance_create_fuzzer', 'instance_create_advanced_fuzzer', 'instance_enumerate_fuzzer_split_input', 'instance_enumerate_fuzzer']	['instance_create_fuzzer', 'instance_create_advanced_fuzzer', 'instance_enumerate_fuzzer_split_input', 'instance_enumerate_fuzzer']
/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_fuzzer', 'instance_create_advanced_fuzzer', 'instance_enumerate_fuzzer_split_input', 'instance_enumerate_fuzzer']	['instance_create_fuzzer', 'instance_create_advanced_fuzzer']
/src/vulkan-loader/loader/vk_loader_platform.h	['settings_fuzzer', 'instance_create_fuzzer', 'instance_create_advanced_fuzzer', 'instance_enumerate_fuzzer_split_input', 'instance_enumerate_fuzzer']	['settings_fuzzer', 'instance_create_fuzzer', 'instance_create_advanced_fuzzer', 'instance_enumerate_fuzzer_split_input', 'instance_enumerate_fuzzer']
/src/vulkan-loader/loader/unknown_function_handling.c	[]	[]
/src/vulkan-loader/loader/allocation.c	['json_load_fuzzer', 'settings_fuzzer', 'instance_create_fuzzer', 'instance_create_advanced_fuzzer', 'instance_enumerate_fuzzer_split_input', 'instance_enumerate_fuzzer']	['json_load_fuzzer', 'settings_fuzzer', 'instance_create_fuzzer', 'instance_create_advanced_fuzzer', 'instance_enumerate_fuzzer_split_input', 'instance_enumerate_fuzzer']
/src/vulkan-loader/loader/phys_dev_ext.c	[]	[]

Directories in report

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