High level conclusions

Fuzzers reach 71.72% code coverage.

Fuzzers reach 76.80% 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

14530 / 18917

Runtime code coverage of functions

1786 / 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_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]	9	3.10%
greenyellow	[30:49]	6	2.06%
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: 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]	10	2.80%
lawngreen	50+	240	67.2%
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: 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	897	30.0%
gold	[1:9]	178	5.97%
yellow	[10:29]	165	5.53%
greenyellow	[30:49]	85	2.85%
lawngreen	50+	1656	55.5%
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
26	1076	policydb_write	call site: 01076	expand_avtab
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	1286	ocontext_write_xen	call site: 01286	context_write

Runtime coverage analysis

Covered functions

567

Functions that are reachable but not covered

131

Reachable functions

657

Percentage of reachable functions covered

80.06%

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	2200	46.7%
gold	[1:9]	279	5.93%
yellow	[10:29]	84	1.78%
greenyellow	[30:49]	25	0.53%
lawngreen	50+	2116	44.9%
All colors	4704	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
322	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
21	3283	mls_write_range_helper	call site: 03283	context_write

Runtime coverage analysis

Covered functions

634

Functions that are reachable but not covered

293

Reachable functions

891

Percentage of reachable functions covered

67.12%

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

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	778	15.6%
gold	[1:9]	325	6.53%
yellow	[10:29]	150	3.01%
greenyellow	[30:49]	35	0.70%
lawngreen	50+	3684	74.0%
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
57	4808	filename_write_one	call site: 04808	avrule_block_write
37	4307	check_assertion_self_match	call site: 04307	check_assertion_extended_permissions
26	4690	policydb_write	call site: 04690	expand_avtab
24	4358	__cil_print_classperm	call site: 04358	__cil_print_permissionx
22	4738	cond_write_node	call site: 04738	expand_cond_av_list
20	4008	__cil_avrulex_to_hashtable_helper	call site: 04008	__cil_avrulex_to_hashtable_helper
20	4561	role_set_expand	call site: 04561	mls_semantic_range_expand
17	310	cil_yylex	call site: 00310	cil_yyrestart
17	4897	ocontext_write_selinux	call site: 04897	ocontext_write_xen
16	4233	cil_ibendportcon_to_policydb	call site: 04233	cil_devicetreecon_to_policydb
14	291	cil_parser	call site: 00291	cil_yylex
14	4031	cil_avrulex_to_hashtable	call site: 04031	__cil_avrulex_to_hashtable_helper

Runtime coverage analysis

Covered functions

1151

Functions that are reachable but not covered

117

Reachable functions

1155

Percentage of reachable functions covered

89.87%

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

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

16133 / 18917

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_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']

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']

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', 'policydb_write', 'cond_write_node', 'user_datum_destroy', 'copy_and_expand_avrule_block', 'constraint_expr_init', 'sepol_extended_perms_to_string', 'expand_range_trans']

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']

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=['filename_write_one', 'check_assertion_self_match', 'policydb_write', '__cil_print_classperm', 'cond_write_node', '__cil_avrulex_to_hashtable_helper', 'role_set_expand', 'cil_yylex', 'ocontext_write_selinux', 'cil_ibendportcon_to_policydb']

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_text-fuzzer', 'selabel_file_compiled-fuzzer']
spec_node_cmp	209	59	28.22%	['selabel_file_text-fuzzer', 'selabel_file_compiled-fuzzer']
regex_format_error	55	27	49.09%	['selabel_file_text-fuzzer', 'selabel_file_compiled-fuzzer']
regex_load_mmap	36	17	47.22%	['selabel_file_compiled-fuzzer']
expand_rule_helper	40	7	17.5%	['checkpolicy-fuzzer', 'binpolicy-fuzzer']
copy_role_trans	77	23	29.87%	['checkpolicy-fuzzer', 'binpolicy-fuzzer']
expand_filename_trans	42	10	23.80%	['checkpolicy-fuzzer', 'binpolicy-fuzzer']
expand_range_trans	41	20	48.78%	['checkpolicy-fuzzer', 'binpolicy-fuzzer']
copy_neverallow	79	31	39.24%	['checkpolicy-fuzzer', 'binpolicy-fuzzer']
cond_node_copy	46	5	10.86%	['checkpolicy-fuzzer', 'binpolicy-fuzzer']
discard_tunables	66	18	27.27%	['checkpolicy-fuzzer', 'binpolicy-fuzzer']
class_copy_callback	71	33	46.47%	['checkpolicy-fuzzer', 'binpolicy-fuzzer']
ocontext_copy_selinux	88	30	34.09%	['checkpolicy-fuzzer', 'binpolicy-fuzzer']
genfs_copy	47	20	42.55%	['checkpolicy-fuzzer', 'binpolicy-fuzzer']
sepol_kernel_policydb_to_cil	221	119	53.84%	['checkpolicy-fuzzer', 'binpolicy-fuzzer']
write_type_permissive_rules_to_cil	33	17	51.51%	['checkpolicy-fuzzer', 'binpolicy-fuzzer']
write_type_neveraudit_rules_to_cil	33	17	51.51%	['checkpolicy-fuzzer', 'binpolicy-fuzzer']
write_selinux_port_rules_to_cil	45	14	31.11%	['checkpolicy-fuzzer', 'binpolicy-fuzzer']
write_selinux_node_rules_to_cil	31	11	35.48%	['checkpolicy-fuzzer', 'binpolicy-fuzzer']
write_selinux_node6_rules_to_cil	31	11	35.48%	['checkpolicy-fuzzer', 'binpolicy-fuzzer']
write_xen_ioport_rules_to_cil	34	13	38.23%	['checkpolicy-fuzzer', 'binpolicy-fuzzer']
write_xen_iomem_rules_to_cil	34	13	38.23%	['checkpolicy-fuzzer', 'binpolicy-fuzzer']
sepol_kernel_policydb_to_conf	226	122	53.98%	['checkpolicy-fuzzer', 'binpolicy-fuzzer']
write_type_permissive_rules_to_conf	33	17	51.51%	['checkpolicy-fuzzer', 'binpolicy-fuzzer']
write_type_neveraudit_rules_to_conf	33	17	51.51%	['checkpolicy-fuzzer', 'binpolicy-fuzzer']
write_selinux_port_rules_to_conf	45	14	31.11%	['checkpolicy-fuzzer', 'binpolicy-fuzzer']
write_selinux_node_rules_to_conf	31	11	35.48%	['checkpolicy-fuzzer', 'binpolicy-fuzzer']
write_selinux_node6_rules_to_conf	31	11	35.48%	['checkpolicy-fuzzer', 'binpolicy-fuzzer']
write_xen_iomem_rules_to_conf	34	13	38.23%	['checkpolicy-fuzzer', 'binpolicy-fuzzer']
write_xen_ioport_rules_to_conf	34	13	38.23%	['checkpolicy-fuzzer', 'binpolicy-fuzzer']
link_modules	90	31	34.44%	['checkpolicy-fuzzer', 'binpolicy-fuzzer']
roles_init	32	16	50.0%	['secilc-fuzzer', 'checkpolicy-fuzzer', 'binpolicy-fuzzer']
avtab_write_item	141	39	27.65%	['secilc-fuzzer', 'checkpolicy-fuzzer', 'binpolicy-fuzzer']
avrule_write	84	26	30.95%	['secilc-fuzzer', 'checkpolicy-fuzzer', 'binpolicy-fuzzer']
filename_trans_rule_write	42	12	28.57%	['secilc-fuzzer', 'checkpolicy-fuzzer', 'binpolicy-fuzzer']
ocontext_write_xen	104	29	27.88%	['secilc-fuzzer', 'checkpolicy-fuzzer', 'binpolicy-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	11	25.0%	['checkpolicy-fuzzer']
define_port_context	77	14	18.18%	['checkpolicy-fuzzer']
define_ibpkey_context	86	15	17.44%	['checkpolicy-fuzzer']
define_ibendport_context	63	14	22.22%	['checkpolicy-fuzzer']
define_netif_context	50	22	44.0%	['checkpolicy-fuzzer']
define_ipv4_node_context	59	15	25.42%	['checkpolicy-fuzzer']
define_ipv4_cidr_node_context	64	16	25.0%	['checkpolicy-fuzzer']
define_fs_use	43	11	25.58%	['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%	['checkpolicy-fuzzer', 'binpolicy-fuzzer']
ocontext_copy_xen	62	31	50.0%	['checkpolicy-fuzzer', 'binpolicy-fuzzer']
cil_avrulex_to_hashtable	131	31	23.66%	['secilc-fuzzer']
__cil_contexts_to_policydb	56	25	44.64%	['secilc-fuzzer']
cil_check_neverallow	81	43	53.08%	['secilc-fuzzer']
__cil_verify_booleanif_helper	53	23	43.39%	['secilc-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/fuzz/secilc-fuzzer.c	['secilc-fuzzer']	['secilc-fuzzer']
/usr/include/x86_64-linux-gnu/bits/byteswap.h	['selabel_file_compiled-fuzzer', 'checkpolicy-fuzzer']	[]
/src/selinux/libselinux/src/lsetfilecon.c	[]	[]
/src/selinux/libsepol/src/conditional.c	['binpolicy-fuzzer', 'checkpolicy-fuzzer', 'secilc-fuzzer']	['binpolicy-fuzzer', 'checkpolicy-fuzzer', 'secilc-fuzzer']
/src/selinux/libselinux/fuzz/selabel_file_compiled-fuzzer.c	['selabel_file_compiled-fuzzer']	['selabel_file_compiled-fuzzer']
/src/selinux/libselinux/src/seusers.c	[]	[]
/src/selinux/libsepol/src/mls.c	['binpolicy-fuzzer', 'checkpolicy-fuzzer', 'secilc-fuzzer']	['binpolicy-fuzzer', 'checkpolicy-fuzzer', 'secilc-fuzzer']
/src/selinux/libsepol/src/avtab.c	['binpolicy-fuzzer', 'checkpolicy-fuzzer', 'secilc-fuzzer']	['binpolicy-fuzzer', 'checkpolicy-fuzzer', 'secilc-fuzzer']
/src/selinux/DESTDIR/usr/include/sepol/policydb/context.h	['binpolicy-fuzzer', 'checkpolicy-fuzzer', 'secilc-fuzzer']	['binpolicy-fuzzer', 'checkpolicy-fuzzer', 'secilc-fuzzer']
/src/selinux/DESTDIR/usr/include/sepol/policydb/mls_types.h	['binpolicy-fuzzer', 'checkpolicy-fuzzer', 'secilc-fuzzer']	['binpolicy-fuzzer', 'checkpolicy-fuzzer', 'secilc-fuzzer']
/src/selinux/libsepol/src/ebitmap.c	['binpolicy-fuzzer', 'checkpolicy-fuzzer', 'secilc-fuzzer']	['binpolicy-fuzzer', 'checkpolicy-fuzzer', 'secilc-fuzzer']
/src/selinux/libselinux/src/enabled.c	[]	[]
/src/selinux/libselinux/src/freecon.c	[]	[]
/src/selinux/libsepol/src/polcaps.c	['binpolicy-fuzzer', 'checkpolicy-fuzzer', 'secilc-fuzzer']	['binpolicy-fuzzer', 'checkpolicy-fuzzer', 'secilc-fuzzer']
/src/selinux/checkpolicy/parse_util.c	[]	[]
/src/selinux/libsepol/src/policydb_convert.c	[]	[]
/src/selinux/libsepol/src/policydb_public.c	['secilc-fuzzer']	['secilc-fuzzer']
/src/selinux/libsepol/src/../cil/src/cil_strpool.c	['secilc-fuzzer']	[]
/src/selinux/libsepol/src/../cil/src/cil_list.c	['secilc-fuzzer']	[]
/src/selinux/libselinux/src/canonicalize_context.c	[]	[]
/src/selinux/checkpolicy/policy_scan.l	['checkpolicy-fuzzer']	['checkpolicy-fuzzer']
/src/selinux/libsepol/src/module.c	[]	[]
/src/selinux/libselinux/src/label_x.c	[]	[]
/src/selinux/libsepol/src/../cil/src/cil_symtab.c	['secilc-fuzzer']	[]
/usr/include/x86_64-linux-gnu/bits/uintn-identity.h	[]	[]
/src/selinux/libselinux/src/label_media.c	[]	[]
/src/selinux/libsepol/src/../cil/src/cil_resolve_ast.c	['secilc-fuzzer']	[]
/src/selinux/libsepol/src/./private.h	['binpolicy-fuzzer']	[]
/src/selinux/libselinux/src/matchpathcon.c	['selabel_file_text-fuzzer']	['selabel_file_text-fuzzer']
/src/selinux/libsepol/src/module_to_cil.c	['checkpolicy-fuzzer']	['checkpolicy-fuzzer']
/src/selinux/libsepol/src/../cil/src/cil_post.c	['secilc-fuzzer']	[]
/src/selinux/libsepol/src/../cil/src/cil_reset_ast.c	['secilc-fuzzer']	[]
/src/selinux/libselinux/src/sha1.c	[]	[]
/src/selinux/checkpolicy/policy_define.c	['checkpolicy-fuzzer']	['checkpolicy-fuzzer']
/src/selinux/libselinux/src/check_context.c	[]	[]
/src/selinux/libsepol/src/../cil/src/cil_copy_ast.c	['secilc-fuzzer']	[]
/src/selinux/libsepol/src/avrule_block.c	['binpolicy-fuzzer', 'checkpolicy-fuzzer', 'secilc-fuzzer']	['binpolicy-fuzzer', 'checkpolicy-fuzzer', 'secilc-fuzzer']
/src/selinux/libsepol/src/util.c	['binpolicy-fuzzer', 'checkpolicy-fuzzer', 'secilc-fuzzer']	['binpolicy-fuzzer', 'checkpolicy-fuzzer', 'secilc-fuzzer']
/src/selinux/libselinux/src/callbacks.c	['selabel_file_text-fuzzer', 'selabel_file_compiled-fuzzer']	['selabel_file_text-fuzzer', 'selabel_file_compiled-fuzzer']
/src/selinux/checkpolicy/fuzz/checkpolicy-fuzzer.c	['checkpolicy-fuzzer']	['checkpolicy-fuzzer']
/src/selinux/libsepol/src/debug.c	['binpolicy-fuzzer', 'checkpolicy-fuzzer']	['binpolicy-fuzzer', 'checkpolicy-fuzzer']
/src/selinux/libselinux/src/label_file.c	['selabel_file_text-fuzzer', 'selabel_file_compiled-fuzzer']	['selabel_file_text-fuzzer', 'selabel_file_compiled-fuzzer']
/src/selinux/libsepol/src/hashtab.c	['binpolicy-fuzzer', 'checkpolicy-fuzzer', 'secilc-fuzzer']	['binpolicy-fuzzer', 'checkpolicy-fuzzer', 'secilc-fuzzer']
/src/selinux/libsepol/src/write.c	['binpolicy-fuzzer', 'checkpolicy-fuzzer', 'secilc-fuzzer']	['binpolicy-fuzzer', 'checkpolicy-fuzzer', 'secilc-fuzzer']
/src/selinux/libsepol/src/kernel_to_conf.c	['binpolicy-fuzzer', 'checkpolicy-fuzzer']	['binpolicy-fuzzer', 'checkpolicy-fuzzer']
/src/selinux/libsepol/src/../cil/src/cil_build_ast.c	['secilc-fuzzer']	[]
/src/selinux/libsepol/fuzz/binpolicy-fuzzer.c	['binpolicy-fuzzer']	['binpolicy-fuzzer']
/src/selinux/libsepol/src/../cil/src/cil_parser.c	['secilc-fuzzer']	[]
/src/selinux/libsepol/src/../cil/src/cil_log.c	['secilc-fuzzer']	[]
/src/selinux/checkpolicy/module_compiler.c	['checkpolicy-fuzzer']	['checkpolicy-fuzzer']
/src/selinux/libselinux/src/label.c	['selabel_file_text-fuzzer']	['selabel_file_text-fuzzer']
/src/selinux/libsepol/src/context_record.c	[]	[]
/src/selinux/libsepol/src/../cil/src/cil_binary.c	['secilc-fuzzer']	[]
/src/selinux/libsepol/src/../cil/src/cil_find.c	['secilc-fuzzer']	[]
/src/selinux/libsepol/src/kernel_to_cil.c	['binpolicy-fuzzer', 'checkpolicy-fuzzer']	['binpolicy-fuzzer', 'checkpolicy-fuzzer']
/src/selinux/libsepol/src/expand.c	['binpolicy-fuzzer', 'checkpolicy-fuzzer', 'secilc-fuzzer']	['binpolicy-fuzzer', 'checkpolicy-fuzzer', 'secilc-fuzzer']
/src/selinux/libsepol/src/../cil/src/cil_lexer.l	['secilc-fuzzer']	[]
/src/selinux/libsepol/src/../cil/src/cil_mem.c	['secilc-fuzzer']	[]
/src/selinux/libsepol/src/policydb.c	['binpolicy-fuzzer', 'checkpolicy-fuzzer', 'secilc-fuzzer']	['binpolicy-fuzzer', 'checkpolicy-fuzzer', 'secilc-fuzzer']
/src/selinux/libselinux/src/init.c	[]	[]
/src/selinux/libselinux/src/setrans_client.c	[]	[]
/src/selinux/libsepol/src/../cil/src/cil_verify.c	['secilc-fuzzer']	[]
/src/selinux/libselinux/fuzz/selabel_file_text-fuzzer.c	['selabel_file_text-fuzzer']	['selabel_file_text-fuzzer']
/src/selinux/libsepol/src/context.c	['binpolicy-fuzzer', 'checkpolicy-fuzzer']	['binpolicy-fuzzer', 'checkpolicy-fuzzer']
/src/selinux/libsepol/src/constraint.c	['binpolicy-fuzzer', 'checkpolicy-fuzzer', 'secilc-fuzzer']	['binpolicy-fuzzer', 'checkpolicy-fuzzer', 'secilc-fuzzer']
/src/selinux/DESTDIR/usr/include/sepol/policydb/ebitmap.h	['binpolicy-fuzzer', 'checkpolicy-fuzzer', 'secilc-fuzzer']	['binpolicy-fuzzer', 'checkpolicy-fuzzer', 'secilc-fuzzer']
/src/selinux/libsepol/src/../cil/src/cil_stack.c	['secilc-fuzzer']	[]
/src/selinux/libsepol/src/../cil/src/cil_policy.c	[]	[]
/src/selinux/libselinux/src/label_support.c	['selabel_file_text-fuzzer']	['selabel_file_text-fuzzer']
/src/selinux/libsepol/src/hierarchy.c	['binpolicy-fuzzer', 'checkpolicy-fuzzer', 'secilc-fuzzer']	['binpolicy-fuzzer', 'checkpolicy-fuzzer', 'secilc-fuzzer']
/src/selinux/libselinux/src/lgetfilecon.c	[]	[]
/src/selinux/libsepol/src/../cil/src/cil_write_ast.c	[]	[]
/src/selinux/libsepol/src/../cil/src/cil_deny.c	['secilc-fuzzer']	[]
/src/selinux/libsepol/src/services.c	['binpolicy-fuzzer', 'checkpolicy-fuzzer', 'secilc-fuzzer']	['binpolicy-fuzzer', 'checkpolicy-fuzzer', 'secilc-fuzzer']
/src/selinux/libsepol/src/symtab.c	['binpolicy-fuzzer', 'checkpolicy-fuzzer', 'secilc-fuzzer']	['binpolicy-fuzzer', 'checkpolicy-fuzzer', 'secilc-fuzzer']
/src/selinux/libsepol/src/sidtab.c	['binpolicy-fuzzer', 'checkpolicy-fuzzer']	['binpolicy-fuzzer', 'checkpolicy-fuzzer']
/src/selinux/libsepol/src/link.c	['binpolicy-fuzzer', 'checkpolicy-fuzzer']	['binpolicy-fuzzer', 'checkpolicy-fuzzer']
/src/selinux/libselinux/src/selinux_config.c	[]	[]
/src/selinux/libsepol/src/../cil/src/cil.c	['secilc-fuzzer']	[]
/src/selinux/libsepol/src/../cil/src/cil_fqn.c	['secilc-fuzzer']	[]
/src/selinux/libsepol/src/kernel_to_common.c	['binpolicy-fuzzer', 'checkpolicy-fuzzer']	['binpolicy-fuzzer', 'checkpolicy-fuzzer']
/src/selinux/libselinux/src/selinux_internal.c	[]	[]
/src/selinux/libselinux/src/label_db.c	[]	[]
/src/selinux/libsepol/src/../cil/src/cil_tree.c	['secilc-fuzzer']	[]
/src/selinux/libsepol/src/optimize.c	['binpolicy-fuzzer', 'checkpolicy-fuzzer', 'secilc-fuzzer']	['binpolicy-fuzzer', 'checkpolicy-fuzzer', 'secilc-fuzzer']
/src/selinux/libsepol/src/policydb_validate.c	['binpolicy-fuzzer', 'checkpolicy-fuzzer']	['binpolicy-fuzzer', 'checkpolicy-fuzzer']
/src/selinux/checkpolicy/y.tab.c	['checkpolicy-fuzzer']	['checkpolicy-fuzzer']
/src/selinux/libsepol/src/../cil/src/cil_lexer.c	['secilc-fuzzer']	[]
/src/selinux/libselinux/src/./label_file.h	['selabel_file_text-fuzzer', 'selabel_file_compiled-fuzzer']	[]
/src/selinux/libselinux/src/regex.c	['selabel_file_text-fuzzer', 'selabel_file_compiled-fuzzer']	['selabel_file_text-fuzzer', 'selabel_file_compiled-fuzzer']
/src/selinux/checkpolicy/lex.yy.c	['checkpolicy-fuzzer']	['checkpolicy-fuzzer']
/src/selinux/libselinux/src/./selinux_internal.h	[]	[]
/src/selinux/libselinux/src/policyvers.c	[]	[]
/src/selinux/checkpolicy/queue.c	['checkpolicy-fuzzer']	['checkpolicy-fuzzer']
/src/selinux/libsepol/src/assertion.c	['binpolicy-fuzzer', 'checkpolicy-fuzzer', 'secilc-fuzzer']	['binpolicy-fuzzer', 'checkpolicy-fuzzer', 'secilc-fuzzer']

Directories in report

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