High level conclusions

Fuzzers reach 60.08% code coverage.

Fuzzers reach 76.86% of cyclomatic complexity.

Fuzzers reach 73.65% of all functions.

Reachability and coverage overview

Functions statically reachable by fuzzers

1834 / 2490

Cyclomatic complexity statically reachable by fuzzers

14577 / 18964

Runtime code coverage of functions

1496 / 2490

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: selabel_file_compiled-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	95	26.6%
gold	[1:9]	10	2.80%
yellow	[10:29]	2	0.56%
greenyellow	[30:49]	3	0.84%
lawngreen	50+	247	69.1%
All colors	357	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
20	246	spec_node_cmp	call site: 00246	__errno_location
19	217	spec_node_cmp	call site: 00217	rspec_incomp
17	199	spec_node_cmp	call site: 00199	lspec_incomp
8	237	spec_node_cmp	call site: 00237	__errno_location
4	194	spec_node_cmp	call site: 00194	__errno_location
4	280	selabel_sub_key	call site: 00280	selabel_apply_subs
3	21	load_mmap	call site: 00021	__errno_location
3	318	regex_format_error	call site: 00318	abort
2	10	write_full	call site: 00010	close
2	115	regex_load_mmap	call site: 00115	regex_data_create
2	119	regex_data_create	call site: 00119	pcre2_serialize_decode_8
2	309	compile_regex	call site: 00309	pthread_mutex_unlock

Runtime coverage analysis

Covered functions

45

Functions that are reachable but not covered

46

Reachable functions

85

Percentage of reachable functions covered

45.88%

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
libselinux/fuzz/selabel_file_compiled-fuzzer.c	3
libselinux/src/callbacks.c	1
libselinux/src/label_file.c	24
libselinux/src/./label_file.h	5
/usr/include/x86_64-linux-gnu/bits/byteswap.h	3
libselinux/src/regex.c	9
libselinux/fuzz/../src/label_file.h	1

Fuzzer: selabel_file_text-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	110	37.9%
gold	[1:9]	3	1.03%
yellow	[10:29]	12	4.13%
greenyellow	[30:49]	3	1.03%
lawngreen	50+	162	55.8%
All colors	290	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
20	199	spec_node_cmp	call site: 00199	__errno_location
19	170	spec_node_cmp	call site: 00170	rspec_incomp
17	152	spec_node_cmp	call site: 00152	lspec_incomp
8	190	spec_node_cmp	call site: 00190	__errno_location
6	103	selabel_validate	call site: 00103	__errno_location
4	111	insert_spec	call site: 00111	__errno_location
4	147	spec_node_cmp	call site: 00147	__errno_location
4	233	selabel_sub_key	call site: 00233	selabel_apply_subs
3	31	process_line	call site: 00031	__errno_location
3	85	regex_format_error	call site: 00085	abort
3	255	lookup_check_node	call site: 00255	__errno_location
2	8	write_full	call site: 00008	close

Runtime coverage analysis

Covered functions

42

Functions that are reachable but not covered

37

Reachable functions

65

Percentage of reachable functions covered

43.08%

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
libselinux/fuzz/selabel_file_text-fuzzer.c	3
libselinux/src/callbacks.c	1
libselinux/src/label_file.c	17
libselinux/src/./label_file.h	9
libselinux/src/label_support.c	2
libselinux/src/regex.c	5
libselinux/src/matchpathcon.c	1
libselinux/src/label.c	1
libselinux/fuzz/../src/label_file.h	1

Fuzzer: secilc-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	2785	56.0%
gold	[1:9]	687	13.8%
yellow	[10:29]	215	4.32%
greenyellow	[30:49]	66	1.32%
lawngreen	50+	1219	24.5%
All colors	4972	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
162	3960	__cil_avrule_to_avtab	call site: 03960	__cil_cond_to_policydb_helper
151	4260	cil_binary_create_allocated_pdb	call site: 04260	cil_check_neverallow
141	3041	ebitmap_cpy	call site: 03041	cil_remove_permissions_from_special_rule
126	2914	cil_expand_class	call site: 02914	cil_remove_permissions_from_rule
88	3754	__perm_str_to_datum	call site: 03754	cil_rangetransition_to_policydb
78	3843	mls_level_eq	call site: 03843	cil_booleanif_to_policydb
78	4423	cil_binary_create_allocated_pdb	call site: 04423	cil_find_matching_avrule_in_ast
72	2840	cil_process_deny_rules_in_ast	call site: 02840	cil_process_deny_rule
66	1756	cil_args_init	call site: 01756	cil_fill_levelrange
57	4808	filename_write_one	call site: 04808	avrule_block_write
48	4733	cond_write_list	call site: 04733	cond_write_node
42	3259	__cil_verify_helper	call site: 03259	__cil_verify_avrulex

Runtime coverage analysis

Covered functions

796

Functions that are reachable but not covered

419

Reachable functions

1155

Percentage of reachable functions covered

63.72%

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
libsepol/fuzz/secilc-fuzzer.c	2
libsepol/src/../cil/src/cil_log.c	5
libsepol/src/../cil/src/cil.c	111
libsepol/src/../cil/src/cil_mem.c	5
libsepol/src/../cil/src/cil_strpool.c	6
libsepol/src/hashtab.c	7
libsepol/src/../cil/src/cil_tree.c	13
libsepol/src/../cil/src/cil_symtab.c	13
libsepol/src/symtab.c	3
libsepol/src/../cil/src/cil_list.c	11
libsepol/src/../cil/src/cil_parser.c	7
libsepol/src/../cil/src/cil_stack.c	7
libsepol/src/../cil/src/cil_lexer.l	3
libsepol/src/../cil/src/cil_lexer.c	20
libsepol/src/../cil/src/cil_build_ast.c	202
libsepol/src/../cil/src/cil_verify.c	55
libsepol/src/ebitmap.c	16
libsepol/src/../cil/src/cil_copy_ast.c	4
libsepol/src/../cil/src/cil_resolve_ast.c	97
libsepol/src/../cil/src/cil_reset_ast.c	57
libsepol/src/../cil/src/cil_fqn.c	3
libsepol/src/../cil/src/cil_post.c	75
DESTDIR/usr/include/sepol/policydb/ebitmap.h	4
libsepol/src/../cil/src/cil_deny.c	41
libsepol/src/../cil/src/cil_find.c	16
libsepol/src/polcaps.c	1
libsepol/src/../cil/src/cil_binary.c	138
libsepol/src/policydb_public.c	7
libsepol/src/policydb.c	43
libsepol/src/avrule_block.c	6
libsepol/src/conditional.c	16
libsepol/src/mls.c	5
libsepol/src/avtab.c	11
libsepol/src/util.c	1
DESTDIR/usr/include/sepol/policydb/mls_types.h	8
libsepol/src/constraint.c	2
DESTDIR/usr/include/sepol/policydb/context.h	3
libsepol/src/assertion.c	10
libsepol/src/hierarchy.c	19
libsepol/src/expand.c	11
libsepol/src/optimize.c	16
libsepol/src/write.c	39
libsepol/src/services.c	1

Fuzzer: binpolicy-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	852	28.5%
gold	[1:9]	165	5.53%
yellow	[10:29]	71	2.38%
greenyellow	[30:49]	132	4.42%
lawngreen	50+	1761	59.0%
All colors	2981	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
124	2384	prepare_base	call site: 02384	copy_module
59	833	check_assertion	call site: 00833	check_assertion_extended_permissions
26	894	check_assertion	call site: 00894	report_assertion_failures
22	1124	cond_write_node	call site: 01124	expand_cond_av_list
20	2670	user_datum_destroy	call site: 02670	role_set_expand
20	2852	copy_and_expand_avrule_block	call site: 02852	cond_node_copy
19	2880	constraint_expr_init	call site: 02880	expand_convert_type_set
17	928	sepol_extended_perms_to_string	call site: 00928	sepol_extended_perms_to_string
17	2786	expand_range_trans	call site: 02786	exp_rangetr_helper
17	2831	expand_rule_helper	call site: 02831	expand_terule_helper
15	1086	expand_avtab_insert	call site: 01086	expand_avtab_insert
15	1286	ocontext_write_xen	call site: 01286	context_write

Runtime coverage analysis

Covered functions

572

Functions that are reachable but not covered

126

Reachable functions

657

Percentage of reachable functions covered

80.82%

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
libsepol/fuzz/binpolicy-fuzzer.c	2
libsepol/src/debug.c	1
libsepol/src/policydb.c	87
libsepol/src/symtab.c	4
libsepol/src/hashtab.c	6
libsepol/src/avrule_block.c	8
libsepol/src/conditional.c	25
libsepol/src/ebitmap.c	13
libsepol/src/mls.c	7
DESTDIR/usr/include/sepol/policydb/ebitmap.h	4
libsepol/src/avtab.c	14
libsepol/src/util.c	4
libsepol/src/services.c	3
libsepol/src/./private.h	1
libsepol/src/policydb_validate.c	71
libsepol/src/expand.c	59
DESTDIR/usr/include/sepol/policydb/mls_types.h	9
libsepol/src/context.c	2
DESTDIR/usr/include/sepol/policydb/context.h	5
libsepol/src/polcaps.c	1
libsepol/src/sidtab.c	3
libsepol/src/optimize.c	16
libsepol/src/assertion.c	17
libsepol/src/hierarchy.c	27
libsepol/src/write.c	39
libsepol/src/kernel_to_conf.c	75
libsepol/src/kernel_to_common.c	41
libsepol/src/kernel_to_cil.c	76
libsepol/src/link.c	35
libsepol/src/constraint.c	2

Fuzzer: checkpolicy-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	2134	45.3%
gold	[1:9]	330	7.00%
yellow	[10:29]	69	1.46%
greenyellow	[30:49]	17	0.36%
lawngreen	50+	2159	45.8%
All colors	4709	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
327	4344	LLVMFuzzerTestOneInput	call site: 04344	blocks_to_cil
128	2618	sepol_av_to_string	call site: 02618	check_assertions
123	1986	prepare_base	call site: 01986	copy_module
77	2376	copy_and_expand_avrule_block	call site: 02376	convert_and_expand_rule
69	1797	define_genfs_context_helper	call site: 01797	define_genfs_context
63	3209	filename_trans_write	call site: 03209	avrule_block_write
52	2560	bounds_check_types	call site: 02560	bounds_check_type
37	3140	cond_write_list	call site: 03140	cond_write_node
35	1372	insert_separator	call site: 01372	define_user
31	3667	sepol_kernel_policydb_to_conf	call site: 03667	write_cond_av_list_to_conf
22	4148	write_cond_nodes_to_cil	call site: 04148	write_cond_av_list_to_cil
20	3102	expand_avtab	call site: 03102	expand_avtab_insert

Runtime coverage analysis

Covered functions

636

Functions that are reachable but not covered

291

Reachable functions

891

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
checkpolicy/fuzz/checkpolicy-fuzzer.c	4
libsepol/src/debug.c	1
libsepol/src/policydb.c	61
libsepol/src/symtab.c	4
libsepol/src/hashtab.c	6
libsepol/src/avrule_block.c	9
libsepol/src/conditional.c	22
libsepol/src/ebitmap.c	12
libsepol/src/mls.c	8
DESTDIR/usr/include/sepol/policydb/ebitmap.h	4
libsepol/src/avtab.c	11
libsepol/src/util.c	4
checkpolicy/queue.c	7
checkpolicy/lex.yy.c	18
checkpolicy/policy_define.c	106
checkpolicy/policy_scan.l	5
checkpolicy/y.tab.c	2
checkpolicy/module_compiler.c	40
libsepol/src/policydb_validate.c	71
libsepol/src/expand.c	59
DESTDIR/usr/include/sepol/policydb/mls_types.h	9
DESTDIR/usr/include/sepol/policydb/context.h	6
libsepol/src/constraint.c	2
libsepol/src/context.c	2
/usr/include/x86_64-linux-gnu/bits/byteswap.h	1
libsepol/src/polcaps.c	2
libsepol/src/link.c	35
libsepol/src/hierarchy.c	27
libsepol/src/assertion.c	17
libsepol/src/sidtab.c	3
libsepol/src/optimize.c	16
libsepol/src/kernel_to_common.c	41
libsepol/src/write.c	39
libsepol/src/services.c	1
libsepol/src/kernel_to_conf.c	75
libsepol/src/kernel_to_cil.c	76
libsepol/src/module_to_cil.c	71

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
cil_write_policy_conf	/src/selinux/libsepol/src/../cil/src/cil.c	2	['N/A', 'N/A']	16	0	19	3	2	203	0	896	375
cil_write_post_ast	/src/selinux/libsepol/src/../cil/src/cil.c	2	['N/A', 'N/A']	19	0	122	16	8	774	0	4813	290
selabel_file_init	/src/selinux/libselinux/src/label_file.c	3	['N/A', 'N/A', 'int']	6	0	84	8	4	35	0	310	253
selinux_file_context_verify	/src/selinux/libselinux/src/matchpathcon.c	2	['N/A', 'int']	8	0	155	28	11	52	0	244	212
sepol_get_user_sids	/src/selinux/libsepol/src/services.c	4	['int', 'N/A', 'N/A', 'N/A']	8	0	336	46	18	50	0	362	209
sepol_check_context	/src/selinux/libsepol/src/context.c	1	['N/A']	9	0	18	3	2	53	0	328	153
sepol_ppfile_to_module_package	/src/selinux/libsepol/src/module_to_cil.c	2	['N/A', 'N/A']	11	0	251	38	13	261	0	2161	143

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

Functions statically reachable by fuzzers

2018 / 2490

Cyclomatic complexity statically reachable by fuzzers

16180 / 18964

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.

libselinux/fuzz/selabel_file_compiled-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=['spec_node_cmp', 'selabel_sub_key', 'load_mmap', 'regex_format_error', 'write_full', 'regex_load_mmap']

libselinux/fuzz/selabel_file_text-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=['spec_node_cmp', 'selabel_validate', 'insert_spec', 'selabel_sub_key', 'process_line', 'regex_format_error']

libsepol/fuzz/secilc-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=['__cil_avrule_to_avtab', 'cil_binary_create_allocated_pdb', 'ebitmap_cpy', 'cil_expand_class', '__perm_str_to_datum', 'mls_level_eq', 'cil_process_deny_rules_in_ast', 'cil_args_init', 'filename_write_one']

libsepol/fuzz/binpolicy-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=['prepare_base', 'check_assertion', 'cond_write_node', 'user_datum_destroy', 'copy_and_expand_avrule_block', 'constraint_expr_init', 'sepol_extended_perms_to_string', 'expand_range_trans', 'expand_rule_helper']

checkpolicy/fuzz/checkpolicy-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=['LLVMFuzzerTestOneInput', 'sepol_av_to_string', 'prepare_base', 'copy_and_expand_avrule_block', 'define_genfs_context_helper', 'filename_trans_write', 'bounds_check_types', 'cond_write_list', 'insert_separator', 'sepol_kernel_policydb_to_conf']

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
init_selinuxmnt	37	14	37.83%	['selabel_file_compiled-fuzzer', 'selabel_file_text-fuzzer']
spec_node_cmp	209	59	28.22%	['selabel_file_compiled-fuzzer', 'selabel_file_text-fuzzer']
regex_load_mmap	36	17	47.22%	['selabel_file_compiled-fuzzer']
regex_format_error	55	27	49.09%	['selabel_file_compiled-fuzzer', 'selabel_file_text-fuzzer']
cil_flavor_to_symtab_index	88	27	30.68%	['secilc-fuzzer']
cil_node_to_string	311	24	7.717%	['secilc-fuzzer']
cil_portcon_to_policydb	35	7	20.0%	['secilc-fuzzer']
cil_genfscon_to_policydb	79	9	11.39%	['secilc-fuzzer']
__cil_avrule_to_avtab	133	33	24.81%	['secilc-fuzzer']
__cil_avrule_expand	34	14	41.17%	['secilc-fuzzer']
__cil_contexts_to_policydb	56	19	33.92%	['secilc-fuzzer']
cil_check_type_bounds	83	13	15.66%	['secilc-fuzzer']
cil_gen_in	47	25	53.19%	['secilc-fuzzer']
cil_gen_role	35	19	54.28%	['secilc-fuzzer']
cil_gen_type	35	19	54.28%	['secilc-fuzzer']
cil_gen_typeattribute	35	19	54.28%	['secilc-fuzzer']
cil_gen_ibpkeycon	60	32	53.33%	['secilc-fuzzer']
cil_destroy_args	40	9	22.5%	['secilc-fuzzer']
cil_gen_policycap	35	19	54.28%	['secilc-fuzzer']
__cil_fill_constraint_expr	54	20	37.03%	['secilc-fuzzer']
check_for_illegal_statement	69	28	40.57%	['secilc-fuzzer']
__cil_copy_node_helper	382	182	47.64%	['secilc-fuzzer']
cil_post_db	110	56	50.90%	['secilc-fuzzer']
__cil_post_db_attr_helper	63	25	39.68%	['secilc-fuzzer']
__cil_expr_to_bitmap	103	44	42.71%	['secilc-fuzzer']
__cil_cat_expr_range_to_bitmap_helper	33	15	45.45%	['secilc-fuzzer']
__cil_expr_to_bitmap_helper	34	16	47.05%	['secilc-fuzzer']
__evaluate_classperms_list	38	19	50.0%	['secilc-fuzzer']
__cil_post_db_cat_helper	205	102	49.75%	['secilc-fuzzer']
cil_resolve_userlevel	43	21	48.83%	['secilc-fuzzer']
cil_resolve_userrange	43	21	48.83%	['secilc-fuzzer']
cil_resolve_levelrange	44	24	54.54%	['secilc-fuzzer']
cil_resolve_context	62	33	53.22%	['secilc-fuzzer']
cil_resolve_nodecon	41	16	39.02%	['secilc-fuzzer']
cil_resolve_netifcon	33	17	51.51%	['secilc-fuzzer']
__cil_resolve_perms	39	20	51.28%	['secilc-fuzzer']
cil_resolve_call	37	20	54.05%	['secilc-fuzzer']
cil_build_call_args	278	32	11.51%	['secilc-fuzzer']
cil_resolve_call_args	123	34	27.64%	['secilc-fuzzer']
cil_resolve_aliasactual	42	22	52.38%	['secilc-fuzzer']
cil_resolve_alias_to_actual	39	20	51.28%	['secilc-fuzzer']
cil_verify_name	43	16	37.20%	['secilc-fuzzer']
cil_verify_constraint_leaf_expr_syntax	60	19	31.66%	['secilc-fuzzer']
cil_verify_constraint_expr_syntax	43	21	48.83%	['secilc-fuzzer']
__cil_verify_helper	160	78	48.75%	['secilc-fuzzer']
__cil_verify_context	68	37	54.41%	['secilc-fuzzer']
__cil_verify_user_pre_eval	33	8	24.24%	['secilc-fuzzer']
__cil_verify_perms	64	16	25.0%	['secilc-fuzzer']
roles_init	32	16	50.0%	['secilc-fuzzer', 'binpolicy-fuzzer', 'checkpolicy-fuzzer']
expand_rule_helper	40	7	17.5%	['binpolicy-fuzzer', 'checkpolicy-fuzzer']
copy_role_trans	77	23	29.87%	['binpolicy-fuzzer', 'checkpolicy-fuzzer']
expand_filename_trans	42	10	23.80%	['binpolicy-fuzzer', 'checkpolicy-fuzzer']
expand_range_trans	41	20	48.78%	['binpolicy-fuzzer', 'checkpolicy-fuzzer']
copy_neverallow	79	31	39.24%	['binpolicy-fuzzer', 'checkpolicy-fuzzer']
cond_node_copy	46	5	10.86%	['binpolicy-fuzzer', 'checkpolicy-fuzzer']
discard_tunables	66	18	27.27%	['binpolicy-fuzzer', 'checkpolicy-fuzzer']
class_copy_callback	71	33	46.47%	['binpolicy-fuzzer', 'checkpolicy-fuzzer']
ocontext_copy_selinux	88	36	40.90%	['binpolicy-fuzzer', 'checkpolicy-fuzzer']
genfs_copy	47	20	42.55%	['binpolicy-fuzzer', 'checkpolicy-fuzzer']
expand_avtab_node	48	17	35.41%	['secilc-fuzzer', 'binpolicy-fuzzer', 'checkpolicy-fuzzer']
expand_avtab_insert	52	16	30.76%	['secilc-fuzzer', 'binpolicy-fuzzer', 'checkpolicy-fuzzer']
sepol_kernel_policydb_to_cil	221	119	53.84%	['binpolicy-fuzzer', 'checkpolicy-fuzzer']
write_type_neveraudit_rules_to_cil	33	17	51.51%	['binpolicy-fuzzer', 'checkpolicy-fuzzer']
write_selinux_port_rules_to_cil	45	14	31.11%	['binpolicy-fuzzer', 'checkpolicy-fuzzer']
write_selinux_node_rules_to_cil	31	11	35.48%	['binpolicy-fuzzer', 'checkpolicy-fuzzer']
write_xen_ioport_rules_to_cil	34	13	38.23%	['binpolicy-fuzzer', 'checkpolicy-fuzzer']
write_xen_iomem_rules_to_cil	34	13	38.23%	['binpolicy-fuzzer', 'checkpolicy-fuzzer']
sepol_kernel_policydb_to_conf	226	122	53.98%	['binpolicy-fuzzer', 'checkpolicy-fuzzer']
write_type_neveraudit_rules_to_conf	33	17	51.51%	['binpolicy-fuzzer', 'checkpolicy-fuzzer']
write_selinux_port_rules_to_conf	45	14	31.11%	['binpolicy-fuzzer', 'checkpolicy-fuzzer']
write_selinux_node_rules_to_conf	31	11	35.48%	['binpolicy-fuzzer', 'checkpolicy-fuzzer']
write_xen_iomem_rules_to_conf	34	13	38.23%	['binpolicy-fuzzer', 'checkpolicy-fuzzer']
write_xen_ioport_rules_to_conf	34	13	38.23%	['binpolicy-fuzzer', 'checkpolicy-fuzzer']
link_modules	90	31	34.44%	['binpolicy-fuzzer', 'checkpolicy-fuzzer']
avrule_write	84	26	30.95%	['secilc-fuzzer', 'binpolicy-fuzzer', 'checkpolicy-fuzzer']
filename_trans_rule_write	42	12	28.57%	['secilc-fuzzer', 'binpolicy-fuzzer', 'checkpolicy-fuzzer']
ocontext_write_xen	104	29	27.88%	['secilc-fuzzer', 'binpolicy-fuzzer', 'checkpolicy-fuzzer']
define_policy	44	20	45.45%	['checkpolicy-fuzzer']
define_pirq_context	39	10	25.64%	['checkpolicy-fuzzer']
define_iomem_context	48	10	20.83%	['checkpolicy-fuzzer']
define_ioport_context	48	10	20.83%	['checkpolicy-fuzzer']
define_pcidevice_context	40	10	25.0%	['checkpolicy-fuzzer']
define_devicetree_context	44	21	47.72%	['checkpolicy-fuzzer']
define_port_context	77	31	40.25%	['checkpolicy-fuzzer']
define_ibendport_context	63	14	22.22%	['checkpolicy-fuzzer']
define_netif_context	50	12	24.0%	['checkpolicy-fuzzer']
define_fs_use	43	22	51.16%	['checkpolicy-fuzzer']
avrule_sort_xperms	40	20	50.0%	['checkpolicy-fuzzer']
define_genfs_context_helper	139	20	14.38%	['checkpolicy-fuzzer']
class_copy_default_new_object	31	16	51.61%	['binpolicy-fuzzer', 'checkpolicy-fuzzer']
ocontext_copy_xen	62	31	50.0%	['binpolicy-fuzzer', 'checkpolicy-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/selinux/libsepol/src/polcaps.c	['secilc-fuzzer', 'binpolicy-fuzzer', 'checkpolicy-fuzzer']	['binpolicy-fuzzer', 'checkpolicy-fuzzer']
/src/selinux/libsepol/src/module.c	[]	[]
/src/selinux/libselinux/fuzz/selabel_file_compiled-fuzzer.c	['selabel_file_compiled-fuzzer']	['selabel_file_compiled-fuzzer']
/src/selinux/libsepol/src/../cil/src/cil_resolve_ast.c	['secilc-fuzzer']	[]
/src/selinux/DESTDIR/usr/include/sepol/policydb/context.h	['secilc-fuzzer', 'binpolicy-fuzzer', 'checkpolicy-fuzzer']	['secilc-fuzzer', 'binpolicy-fuzzer', 'checkpolicy-fuzzer']
/src/selinux/libselinux/src/seusers.c	[]	[]
/src/selinux/libsepol/src/hierarchy.c	['secilc-fuzzer', 'binpolicy-fuzzer', 'checkpolicy-fuzzer']	['secilc-fuzzer', 'binpolicy-fuzzer', 'checkpolicy-fuzzer']
/src/selinux/libsepol/src/../cil/src/cil_policy.c	[]	[]
/src/selinux/libsepol/src/symtab.c	['secilc-fuzzer', 'binpolicy-fuzzer', 'checkpolicy-fuzzer']	['secilc-fuzzer', 'binpolicy-fuzzer', 'checkpolicy-fuzzer']
/src/selinux/libsepol/src/../cil/src/cil_binary.c	['secilc-fuzzer']	[]
/src/selinux/libsepol/src/../cil/src/cil_symtab.c	['secilc-fuzzer']	[]
/src/selinux/libsepol/src/../cil/src/cil_copy_ast.c	['secilc-fuzzer']	[]
/src/selinux/libselinux/src/callbacks.c	['selabel_file_compiled-fuzzer', 'selabel_file_text-fuzzer']	['selabel_file_compiled-fuzzer', 'selabel_file_text-fuzzer']
/src/selinux/libselinux/src/selinux_internal.c	[]	[]
/src/selinux/libsepol/src/../cil/src/cil_list.c	['secilc-fuzzer']	[]
/src/selinux/libsepol/src/ebitmap.c	['secilc-fuzzer', 'binpolicy-fuzzer', 'checkpolicy-fuzzer']	['secilc-fuzzer', 'binpolicy-fuzzer', 'checkpolicy-fuzzer']
/src/selinux/libsepol/src/sidtab.c	['binpolicy-fuzzer', 'checkpolicy-fuzzer']	['binpolicy-fuzzer', 'checkpolicy-fuzzer']
/src/selinux/libsepol/src/conditional.c	['secilc-fuzzer', 'binpolicy-fuzzer', 'checkpolicy-fuzzer']	['secilc-fuzzer', 'binpolicy-fuzzer', 'checkpolicy-fuzzer']
/src/selinux/libsepol/src/../cil/src/cil_write_ast.c	[]	[]
/src/selinux/libselinux/fuzz/selabel_file_text-fuzzer.c	['selabel_file_text-fuzzer']	['selabel_file_text-fuzzer']
/src/selinux/libsepol/src/policydb_public.c	['secilc-fuzzer']	['secilc-fuzzer']
/src/selinux/libsepol/src/../cil/src/cil_fqn.c	['secilc-fuzzer']	[]
/src/selinux/DESTDIR/usr/include/sepol/policydb/ebitmap.h	['secilc-fuzzer', 'binpolicy-fuzzer', 'checkpolicy-fuzzer']	['secilc-fuzzer', 'binpolicy-fuzzer', 'checkpolicy-fuzzer']
/src/selinux/libsepol/src/../cil/src/cil_mem.c	['secilc-fuzzer']	[]
/src/selinux/libselinux/src/setrans_client.c	[]	[]
/src/selinux/libsepol/src/../cil/src/cil_parser.c	['secilc-fuzzer']	[]
/src/selinux/libsepol/src/../cil/src/cil_stack.c	['secilc-fuzzer']	[]
/src/selinux/libsepol/fuzz/secilc-fuzzer.c	['secilc-fuzzer']	['secilc-fuzzer']
/src/selinux/libsepol/src/../cil/src/cil.c	['secilc-fuzzer']	[]
/src/selinux/libselinux/src/matchpathcon.c	['selabel_file_text-fuzzer']	['selabel_file_text-fuzzer']
/src/selinux/libsepol/src/../cil/src/cil_verify.c	['secilc-fuzzer']	[]
/src/selinux/libsepol/src/write.c	['secilc-fuzzer', 'binpolicy-fuzzer', 'checkpolicy-fuzzer']	['secilc-fuzzer', 'binpolicy-fuzzer', 'checkpolicy-fuzzer']
/src/selinux/libsepol/src/policydb_validate.c	['binpolicy-fuzzer', 'checkpolicy-fuzzer']	['binpolicy-fuzzer', 'checkpolicy-fuzzer']
/src/selinux/libselinux/src/freecon.c	[]	[]
/src/selinux/libsepol/src/policydb.c	['secilc-fuzzer', 'binpolicy-fuzzer', 'checkpolicy-fuzzer']	['secilc-fuzzer', 'binpolicy-fuzzer', 'checkpolicy-fuzzer']
/src/selinux/checkpolicy/fuzz/checkpolicy-fuzzer.c	['checkpolicy-fuzzer']	['checkpolicy-fuzzer']
/src/selinux/libsepol/src/link.c	['binpolicy-fuzzer', 'checkpolicy-fuzzer']	['binpolicy-fuzzer', 'checkpolicy-fuzzer']
/src/selinux/libselinux/src/lsetfilecon.c	[]	[]
/src/selinux/libsepol/src/kernel_to_common.c	['binpolicy-fuzzer', 'checkpolicy-fuzzer']	['binpolicy-fuzzer', 'checkpolicy-fuzzer']
/src/selinux/libsepol/fuzz/binpolicy-fuzzer.c	['binpolicy-fuzzer']	['binpolicy-fuzzer']
/src/selinux/libsepol/src/kernel_to_conf.c	['binpolicy-fuzzer', 'checkpolicy-fuzzer']	['binpolicy-fuzzer', 'checkpolicy-fuzzer']
/src/selinux/libselinux/src/lgetfilecon.c	[]	[]
/src/selinux/DESTDIR/usr/include/sepol/policydb/mls_types.h	['secilc-fuzzer', 'binpolicy-fuzzer', 'checkpolicy-fuzzer']	['secilc-fuzzer', 'binpolicy-fuzzer', 'checkpolicy-fuzzer']
/src/selinux/libsepol/src/./private.h	['binpolicy-fuzzer']	[]
/src/selinux/libsepol/src/avrule_block.c	['secilc-fuzzer', 'binpolicy-fuzzer', 'checkpolicy-fuzzer']	['secilc-fuzzer', 'binpolicy-fuzzer', 'checkpolicy-fuzzer']
/src/selinux/libselinux/src/label_media.c	[]	[]
/src/selinux/libselinux/src/regex.c	['selabel_file_compiled-fuzzer', 'selabel_file_text-fuzzer']	['selabel_file_compiled-fuzzer', 'selabel_file_text-fuzzer']
/src/selinux/libselinux/src/label.c	['selabel_file_text-fuzzer']	['selabel_file_text-fuzzer']
/src/selinux/libsepol/src/../cil/src/cil_strpool.c	['secilc-fuzzer']	[]
/src/selinux/checkpolicy/module_compiler.c	['checkpolicy-fuzzer']	['checkpolicy-fuzzer']
/src/selinux/libsepol/src/hashtab.c	['secilc-fuzzer', 'binpolicy-fuzzer', 'checkpolicy-fuzzer']	['secilc-fuzzer', 'binpolicy-fuzzer', 'checkpolicy-fuzzer']
/src/selinux/checkpolicy/policy_scan.l	['checkpolicy-fuzzer']	['checkpolicy-fuzzer']
/src/selinux/libsepol/src/module_to_cil.c	['checkpolicy-fuzzer']	['checkpolicy-fuzzer']
/src/selinux/libsepol/src/mls.c	['secilc-fuzzer', 'binpolicy-fuzzer', 'checkpolicy-fuzzer']	['secilc-fuzzer', 'binpolicy-fuzzer', 'checkpolicy-fuzzer']
/usr/include/x86_64-linux-gnu/bits/byteswap.h	['selabel_file_compiled-fuzzer', 'checkpolicy-fuzzer']	[]
/src/selinux/libselinux/src/selinux_config.c	[]	[]
/src/selinux/libselinux/src/label_db.c	[]	[]
/src/selinux/libsepol/src/../cil/src/cil_tree.c	['secilc-fuzzer']	[]
/src/selinux/libsepol/src/services.c	['secilc-fuzzer', 'binpolicy-fuzzer', 'checkpolicy-fuzzer']	['secilc-fuzzer', 'binpolicy-fuzzer', 'checkpolicy-fuzzer']
/src/selinux/libsepol/src/../cil/src/cil_find.c	['secilc-fuzzer']	[]
/src/selinux/libsepol/src/../cil/src/cil_post.c	['secilc-fuzzer']	[]
/src/selinux/libsepol/src/assertion.c	['secilc-fuzzer', 'binpolicy-fuzzer', 'checkpolicy-fuzzer']	['binpolicy-fuzzer', 'checkpolicy-fuzzer']
/src/selinux/libsepol/src/../cil/src/cil_reset_ast.c	['secilc-fuzzer']	[]
/src/selinux/libselinux/src/canonicalize_context.c	[]	[]
/src/selinux/checkpolicy/y.tab.c	['checkpolicy-fuzzer']	['checkpolicy-fuzzer']
/src/selinux/libsepol/src/expand.c	['secilc-fuzzer', 'binpolicy-fuzzer', 'checkpolicy-fuzzer']	['secilc-fuzzer', 'binpolicy-fuzzer', 'checkpolicy-fuzzer']
/src/selinux/libsepol/src/util.c	['secilc-fuzzer', 'binpolicy-fuzzer', 'checkpolicy-fuzzer']	['secilc-fuzzer', 'binpolicy-fuzzer', 'checkpolicy-fuzzer']
/src/selinux/libsepol/src/../cil/src/cil_log.c	['secilc-fuzzer']	[]
/src/selinux/libsepol/src/../cil/src/cil_lexer.c	['secilc-fuzzer']	[]
/src/selinux/libselinux/src/label_support.c	['selabel_file_text-fuzzer']	['selabel_file_text-fuzzer']
/src/selinux/libselinux/src/./selinux_internal.h	[]	[]
/src/selinux/checkpolicy/policy_define.c	['checkpolicy-fuzzer']	['checkpolicy-fuzzer']
/src/selinux/libsepol/src/../cil/src/cil_deny.c	['secilc-fuzzer']	[]
/src/selinux/libselinux/src/./label_file.h	['selabel_file_compiled-fuzzer', 'selabel_file_text-fuzzer']	[]
/src/selinux/libselinux/src/label_file.c	['selabel_file_compiled-fuzzer', 'selabel_file_text-fuzzer']	['selabel_file_compiled-fuzzer', 'selabel_file_text-fuzzer']
/src/selinux/libselinux/src/policyvers.c	[]	[]
/src/selinux/libsepol/src/context_record.c	[]	[]
/src/selinux/libsepol/src/policydb_convert.c	[]	[]
/usr/include/x86_64-linux-gnu/bits/uintn-identity.h	[]	[]
/src/selinux/libsepol/src/debug.c	['binpolicy-fuzzer', 'checkpolicy-fuzzer']	['binpolicy-fuzzer', 'checkpolicy-fuzzer']
/src/selinux/libselinux/src/enabled.c	[]	[]
/src/selinux/libsepol/src/context.c	['binpolicy-fuzzer', 'checkpolicy-fuzzer']	['binpolicy-fuzzer', 'checkpolicy-fuzzer']
/src/selinux/libselinux/src/label_x.c	[]	[]
/src/selinux/checkpolicy/queue.c	['checkpolicy-fuzzer']	['checkpolicy-fuzzer']
/src/selinux/libselinux/src/check_context.c	[]	[]
/src/selinux/checkpolicy/lex.yy.c	['checkpolicy-fuzzer']	['checkpolicy-fuzzer']
/src/selinux/libselinux/src/init.c	[]	[]
/src/selinux/libsepol/src/../cil/src/cil_lexer.l	['secilc-fuzzer']	[]
/src/selinux/libsepol/src/kernel_to_cil.c	['binpolicy-fuzzer', 'checkpolicy-fuzzer']	['binpolicy-fuzzer', 'checkpolicy-fuzzer']
/src/selinux/checkpolicy/parse_util.c	[]	[]
/src/selinux/libsepol/src/avtab.c	['secilc-fuzzer', 'binpolicy-fuzzer', 'checkpolicy-fuzzer']	['secilc-fuzzer', 'binpolicy-fuzzer', 'checkpolicy-fuzzer']
/src/selinux/libsepol/src/optimize.c	['secilc-fuzzer', 'binpolicy-fuzzer', 'checkpolicy-fuzzer']	['secilc-fuzzer', 'binpolicy-fuzzer', 'checkpolicy-fuzzer']
/src/selinux/libselinux/src/sha1.c	[]	[]
/src/selinux/libsepol/src/constraint.c	['secilc-fuzzer', 'binpolicy-fuzzer', 'checkpolicy-fuzzer']	['binpolicy-fuzzer', 'checkpolicy-fuzzer']
/src/selinux/libsepol/src/../cil/src/cil_build_ast.c	['secilc-fuzzer']	[]

Directories in report

Directory
/src/selinux/libsepol/fuzz/
/src/selinux/checkpolicy/
/src/selinux/checkpolicy/fuzz/
/src/selinux/libselinux/src/
/src/selinux/libsepol/src/
/usr/include/x86_64-linux-gnu/bits/
/src/selinux/libsepol/src/./
/src/selinux/libsepol/src/../cil/src/
/src/selinux/DESTDIR/usr/include/sepol/policydb/
/src/selinux/libselinux/src/./
/src/selinux/libselinux/fuzz/