High level conclusions

Fuzzers reach 39.99% of cyclomatic complexity.

Fuzzers reach 37.95% of all functions.

Reachability and coverage overview

Functions statically reachable by fuzzers

487 / 1283

Cyclomatic complexity statically reachable by fuzzers

3627 / 9069

Runtime code coverage of functions

636 / 1283

Warning: The number of runtime covered functions are larger than the number of reachable functions. This means that Fuzz Introspector found there are more functions covered at runtime than what is considered reachable based on the static analysis. This is a limitation in the analysis as anything covered at runtime is by definition reachable by the fuzzers.
This is likely due to a limitation in the static analysis. In this case, the count of functions covered at runtime is the true value, which means this is what should be considered "achieved" by the fuzzer.

Use the project functions table below to query all functions that were not covered at runtime.

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	Fuzzers runtime hit	Func lines hit %	I Count	BB Count	Cyclomatic complexity	Functions reached	Reached by functions	Accumulated cyclomatic complexity	Undiscovered complexity

Fuzzer: sshsigopt_fuzz

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	0	0.0%
gold	[1:9]	0	0.0%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	31	100.%
All colors	31	100

Fuzz blockers

The followings are the branches where fuzzer fails to bypass.

Unique non-covered Complexity	Unique Reachable Complexities	Unique Reachable Functions	All non-covered Complexity	All Reachable Complexity	Function Name	Function Callsite	Blocked Branch
0	0	None	2	2	opt_flag	call site: 00005	/src/openssh/misc.c:2590
0	0	None	0	3	sshsigopt_parse	call site: 00028	/src/openssh/sshsig.c:715
0	0	None	0	0	opt_dequote	call site: 00012	/src/openssh/misc.c:2614
0	0	None	0	0	sshsigopt_parse	call site: 00002	/src/openssh/sshsig.c:643

Runtime coverage analysis

Covered functions

7

Functions that are reachable but not covered

9

Reachable functions

16

Percentage of reachable functions covered

43.75%

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
regress/misc/fuzz-harness/sshsigopt_fuzz.cc	1
sshsig.c	2
misc.c	4

Fuzzer: sig_fuzz

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	66	63.4%
gold	[1:9]	8	7.69%
yellow	[10:29]	1	0.96%
greenyellow	[30:49]	1	0.96%
lawngreen	50+	28	26.9%
All colors	104	100

Fuzz blockers

The followings are the branches where fuzzer fails to bypass.

Unique non-covered Complexity	Unique Reachable Complexities	Unique Reachable Functions	All non-covered Complexity	All Reachable Complexity	Function Name	Function Callsite	Blocked Branch
450	450	2 : View List ['cert_new', 'sshkey_free']	450	450	sshkey_new	call site: 00010	/src/openssh/sshkey.c:629
220	220	1 : View List ['sshkey_free']	220	220	sshkey_generate	call site: 00007	/src/openssh/sshkey.c:1414
164	164	1 : View List ['_getentropy_fail']	168	229	_rs_stir	call site: 00000	/src/openssh/openbsd-compat/arc4random.c:116
164	164	2 : View List ['sshfatal', 'ERR_get_error']	164	164	_ssh_compat_getentropy	call site: 00000	/src/openssh/openbsd-compat/bsd-getentropy.c:45
158	158	5 : View List ['strlcpy', 'do_log', 'strrchr', 'match_pattern_list', 'getpid']	158	158	sshlogv	call site: 00028	/src/openssh/log.c:460
73	73	2 : View List ['abort', 'ssh_err']	73	73	generate_or_die(int,unsignedint)	call site: 00000	/src/openssh/regress/misc/fuzz-harness/sig_fuzz.cc:18
13	13	1 : View List ['rsa_hash_id_from_keyname']	21	703	ssh_rsa_verify	call site: 00000	/src/openssh/ssh-rsa.c:508
4	4	1 : View List ['timingsafe_bcmp']	4	9	openssh_RSA_verify	call site: 00000	/src/openssh/ssh-rsa.c:659
2	2	1 : View List ['_exit']	2	2	_rs_init	call site: 00000	/src/openssh/openbsd-compat/arc4random.c:102
2	2	1 : View List ['memset']	2	2	_rs_forkdetect	call site: 00000	/src/openssh/openbsd-compat/./arc4random.h:58
2	2	1 : View List ['munmap']	2	2	_rs_allocate	call site: 00000	/src/openssh/openbsd-compat/./arc4random.h:71
2	2	1 : View List ['EC_KEY_free']	2	2	ssh_ecdsa_generate	call site: 00000	/src/openssh/ssh-ecdsa.c:135

Runtime coverage analysis

Covered functions

104

Functions that are reachable but not covered

38

Reachable functions

55

Percentage of reachable functions covered

30.91%

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.

Warning: The number of covered functions are larger than the number of reachable functions. This means that there are more functions covered at runtime than are extracted using static analysis. This is likely a result of the static analysis component failing to extract the right call graph or the coverage runtime being compiled with sanitizers in code that the static analysis has not analysed. This can happen if lto/gold is not used in all places that coverage instrumentation is used.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
regress/misc/fuzz-harness/sig_fuzz.cc	2
sshkey.c	13
sshbuf.c	3
misc.c	1
log.c	3
match.c	2
openbsd-compat/strlcpy.c	1
openbsd-compat/vis.c	2
openbsd-compat/freezero.c	1
ssherr.c	1

Fuzzer: authopt_fuzz

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	56	37.0%
gold	[1:9]	3	1.98%
yellow	[10:29]	1	0.66%
greenyellow	[30:49]	1	0.66%
lawngreen	50+	90	59.6%
All colors	151	100

Fuzz blockers

The followings are the branches where fuzzer fails to bypass.

Unique non-covered Complexity	Unique Reachable Complexities	Unique Reachable Functions	All non-covered Complexity	All Reachable Complexity	Function Name	Function Callsite	Blocked Branch
168	765	4 : View List ['a2tun', 'xstrdup', 'free', 'strchr']	168	765	a2tun	call site: 00082	/src/openssh/misc.c:536
2	2	1 : View List ['getpagesize']	8	8	recallocarray	call site: 00051	/src/openssh/openbsd-compat/recallocarray.c:64
2	2	1 : View List ['ntohs']	2	2	a2port	call site: 00075	/src/openssh/misc.c:524
0	11	1 : View List ['sshauthopt_free']	0	11	sshauthopt_merge	call site: 00145	/src/openssh/auth-options.c:635
0	0	None	12	100	sshauthopt_merge	call site: 00132	/src/openssh/auth-options.c:541
0	0	None	8	19	sshauthopt_merge	call site: 00142	/src/openssh/auth-options.c:614
0	0	None	6	675	sshauthopt_parse	call site: 00003	/src/openssh/auth-options.c:333
0	0	None	2	2	recallocarray	call site: 00053	/src/openssh/openbsd-compat/recallocarray.c:77
0	0	None	2	2	strtonum	call site: 00071	/src/openssh/openbsd-compat/strtonum.c:52
0	0	None	0	11	sshauthopt_parse	call site: 00004	/src/openssh/auth-options.c:335
0	0	None	0	11	sshauthopt_parse	call site: 00041	/src/openssh/auth-options.c:405
0	0	None	0	11	sshauthopt_parse	call site: 00044	/src/openssh/auth-options.c:417

Runtime coverage analysis

Covered functions

19

Functions that are reachable but not covered

42

Reachable functions

61

Percentage of reachable functions covered

31.15%

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
regress/misc/fuzz-harness/authopt_fuzz.cc	1
auth-options.c	7
misc.c	8
openbsd-compat/recallocarray.c	1
openbsd-compat/strtonum.c	1
xmalloc.c	2
fatal.c	1
log.c	2
match.c	2
openbsd-compat/strlcpy.c	1
openbsd-compat/vis.c	2
cleanup.c	1
openbsd-compat/freezero.c	1

Fuzzer: pubkey_fuzz

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	42	38.1%
gold	[1:9]	0	0.0%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	68	61.8%
All colors	110	100

Fuzz blockers

The followings are the branches where fuzzer fails to bypass.

Unique non-covered Complexity	Unique Reachable Complexities	Unique Reachable Functions	All non-covered Complexity	All Reachable Complexity	Function Name	Function Callsite	Blocked Branch
254	254	1 : View List ['sshkey_get_sigtype']	254	1066	cert_parse	call site: 00000	/src/openssh/sshkey.c:1869
158	158	5 : View List ['strlcpy', 'do_log', 'strrchr', 'match_pattern_list', 'getpid']	158	158	sshlogv	call site: 00013	/src/openssh/log.c:460
13	13	1 : View List ['rsa_hash_id_from_keyname']	21	703	ssh_rsa_verify	call site: 00000	/src/openssh/ssh-rsa.c:508
4	4	1 : View List ['timingsafe_bcmp']	4	9	openssh_RSA_verify	call site: 00000	/src/openssh/ssh-rsa.c:659
2	2	1 : View List ['BN_clear_free']	2	2	sshbuf_get_bignum2	call site: 00000	/src/openssh/sshbuf-getput-crypto.c:48
2	2	1 : View List ['explicit_bzero']	2	2	sshkey_xmss_free_state	call site: 00000	/src/openssh/sshkey-xmss.c:144
2	2	1 : View List ['SHA512']	2	2	core_hash_SHA2	call site: 00000	/src/openssh/xmss_hash.c:55
0	222	1 : View List ['cert_free']	0	222	cert_new	call site: 00083	/src/openssh/sshkey.c:595
0	220	1 : View List ['sshkey_free']	0	220	sshkey_new	call site: 00081	/src/openssh/sshkey.c:630
0	203	1 : View List ['sshbuf_free']	0	203	sshbuf_froms	call site: 00000	/src/openssh/sshbuf-getput-basic.c:561
0	203	1 : View List ['sshbuf_free']	0	203	sshbuf_fromb	call site: 00049	/src/openssh/sshbuf.c:151
0	0	None	254	1269	cert_parse	call site: 00000	/src/openssh/sshkey.c:1865

Runtime coverage analysis

Covered functions

157

Functions that are reachable but not covered

32

Reachable functions

76

Percentage of reachable functions covered

57.89%

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.

Warning: The number of covered functions are larger than the number of reachable functions. This means that there are more functions covered at runtime than are extracted using static analysis. This is likely a result of the static analysis component failing to extract the right call graph or the coverage runtime being compiled with sanitizers in code that the static analysis has not analysed. This can happen if lto/gold is not used in all places that coverage instrumentation is used.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
regress/misc/fuzz-harness/pubkey_fuzz.cc	1
sshkey.c	11
sshbuf.c	9
misc.c	1
log.c	3
match.c	2
openbsd-compat/strlcpy.c	1
openbsd-compat/vis.c	2
openbsd-compat/freezero.c	1
sshbuf-getput-basic.c	3

Fuzzer: privkey_fuzz

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	46	35.6%
gold	[1:9]	0	0.0%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	83	64.3%
All colors	129	100

Fuzz blockers

The followings are the branches where fuzzer fails to bypass.

Unique non-covered Complexity	Unique Reachable Complexities	Unique Reachable Functions	All non-covered Complexity	All Reachable Complexity	Function Name	Function Callsite	Blocked Branch
254	254	1 : View List ['sshkey_get_sigtype']	254	1066	cert_parse	call site: 00000	/src/openssh/sshkey.c:1869
158	158	5 : View List ['strlcpy', 'do_log', 'strrchr', 'match_pattern_list', 'getpid']	158	158	sshlogv	call site: 00014	/src/openssh/log.c:460
82	242	4 : View List ['xmss_sign_open', 'sshkey_xmss_params', 'malloc', 'sshlog']	82	455	ssh_xmss_verify	call site: 00000	/src/openssh/ssh-xmss.c:314
13	13	1 : View List ['rsa_hash_id_from_keyname']	21	703	ssh_rsa_verify	call site: 00000	/src/openssh/ssh-rsa.c:508
4	2086	12 : View List ['sshbuf_put', 'sshbuf_new', 'sshbuf_ptr', 'sshbuf_put_u8', 'sshlog', 'ssh_digest_memory', 'sshbuf_len', 'sshbuf_put_u32', 'crypto_sign_ed25519_open', 'malloc', 'strlen', 'calloc']	4	2504	ssh_ed25519_sk_verify	call site: 00000	/src/openssh/ssh-ed25519-sk.c:172
4	23	4 : View List ['sshkey_ecdsa_nid_from_name', 'memcmp', 'strcmp', 'sshkey_impl_from_type']	4	243	sshkey_private_deserialize	call site: 00062	/src/openssh/sshkey.c:2533
4	4	1 : View List ['timingsafe_bcmp']	4	9	openssh_RSA_verify	call site: 00000	/src/openssh/ssh-rsa.c:659
2	191	2 : View List ['timingsafe_bcmp', 'sshbuf_ptr']	2	191	sshbuf_cmp	call site: 00000	/src/openssh/sshbuf-misc.c:245
2	2	1 : View List ['BN_clear_free']	2	2	sshbuf_get_bignum2	call site: 00000	/src/openssh/sshbuf-getput-crypto.c:48
0	711	1 : View List ['sshbuf_put_u8']	0	716	sshbuf_dtob64	call site: 00000	/src/openssh/sshbuf-misc.c:111
0	222	1 : View List ['cert_free']	0	222	cert_new	call site: 00093	/src/openssh/sshkey.c:595
0	220	1 : View List ['sshkey_free']	0	220	sshkey_new	call site: 00091	/src/openssh/sshkey.c:630

Runtime coverage analysis

Covered functions

161

Functions that are reachable but not covered

33

Reachable functions

80

Percentage of reachable functions covered

58.75%

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.

Warning: The number of covered functions are larger than the number of reachable functions. This means that there are more functions covered at runtime than are extracted using static analysis. This is likely a result of the static analysis component failing to extract the right call graph or the coverage runtime being compiled with sanitizers in code that the static analysis has not analysed. This can happen if lto/gold is not used in all places that coverage instrumentation is used.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
regress/misc/fuzz-harness/privkey_fuzz.cc	1
sshbuf.c	9
sshkey.c	14
sshbuf-getput-basic.c	4
misc.c	1
log.c	3
match.c	2
openbsd-compat/strlcpy.c	1
openbsd-compat/vis.c	2
openbsd-compat/freezero.c	1

Fuzzer: agent_fuzz

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	1092	66.9%
gold	[1:9]	58	3.55%
yellow	[10:29]	27	1.65%
greenyellow	[30:49]	16	0.98%
lawngreen	50+	437	26.8%
All colors	1630	100

Fuzz blockers

The followings are the branches where fuzzer fails to bypass.

Unique non-covered Complexity	Unique Reachable Complexities	Unique Reachable Functions	All non-covered Complexity	All Reachable Complexity	Function Name	Function Callsite	Blocked Branch
3596	5247	17 : View List ['read_passphrase', 'sshbuf_ptr', 'parse_userauth_request', 'sshkey_type', 'sshkey_sign', 'sshkey_equal', 'check_websafe_message_contents', 'sshbuf_len', 'agent_decode_alg', 'sshkey_is_sk', 'sshkey_fingerprint', 'identity_permitted', 'strncmp', 'buf_equal', 'notify_start', 'confirm_key', 'lookup_identity']	4246	10455	process_sign_request2	call site: 00640	/src/openssh/regress/misc/fuzz-harness/../../../ssh-agent.c:855
2224	3778	20 : View List ['sshkey_type', 'sshbuf_reset', 'xcalloc', 'match_pattern_list', 'strerror', 'monotime', 'sshkey_ssh_name', 'identity_permitted', 'dump_dest_constraints', 'sshfatal', 'parse_key_constraints', 'strcasecmp', 'sshkey_is_sk', 'realpath', 'xstrdup', 'lookup_identity', 'sshkey_fingerprint', '__errno_location', 'sshkey_shield_private', 'socket_is_remote']	2224	6346	process_add_identity	call site: 01133	/src/openssh/regress/misc/fuzz-harness/../../../ssh-agent.c:1361
1566	3198	6 : View List ['permitted_by_dest_constraints', 'sshfatal', 'sshlog', 'sshkey_type', 'free', 'sshkey_fingerprint']	1566	3198	identity_permitted	call site: 00742	/src/openssh/regress/misc/fuzz-harness/../../../ssh-agent.c:483
757	757	3 : View List ['process_ext_session_bind', 'free', 'strcmp']	757	1258	process_extension	call site: 01582	/src/openssh/regress/misc/fuzz-harness/../../../ssh-agent.c:1776
433	433	1 : View List ['sshkey_parse_private_pem_fileblob']	433	433	sshkey_parse_private_fileblob_type	call site: 00388	/src/openssh/sshkey.c:3585
400	1188	4 : View List ['identity_permitted', 'sshfatal', 'free_identity', 'lookup_identity']	400	1909	process_remove_identity	call site: 01266	/src/openssh/regress/misc/fuzz-harness/../../../ssh-agent.c:1000
344	344	6 : View List ['sshfatal', 'waitpid', '__errno_location', 'ssh_signal', 'strerror', 'kill']	344	344	notify_complete	call site: 01073	/src/openssh/readpass.c:320
202	202	1 : View List ['cert_compare']	202	221	sshkey_equal	call site: 00375	/src/openssh/sshkey.c:721
164	164	1 : View List ['_getentropy_fail']	168	229	_rs_stir	call site: 00277	/src/openssh/openbsd-compat/arc4random.c:116
164	164	2 : View List ['sshfatal', 'ERR_get_error']	164	164	_ssh_compat_getentropy	call site: 00278	/src/openssh/openbsd-compat/bsd-getentropy.c:45
162	233	2 : View List ['sshfatal', 'ssh_err']	162	233	no_identities	call site: 00597	/src/openssh/regress/misc/fuzz-harness/../../../ssh-agent.c:1522
162	233	2 : View List ['sshfatal', 'ssh_err']	162	233	send_status	call site: 00609	/src/openssh/regress/misc/fuzz-harness/../../../ssh-agent.c:610

Runtime coverage analysis

Covered functions

242

Functions that are reachable but not covered

278

Reachable functions

442

Percentage of reachable functions covered

37.1%

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
regress/misc/fuzz-harness/agent_fuzz.cc	1
regress/misc/fuzz-harness/agent_fuzz_helper.c	10
log.c	5
match.c	2
openbsd-compat/strlcpy.c	1
openbsd-compat/vis.c	2
xmalloc.c	6
fatal.c	1
regress/misc/fuzz-harness/../../../ssh-agent.c	40
ssh-pkcs11.c	30
sshkey.c	68
sshbuf.c	14
misc.c	6
openbsd-compat/freezero.c	1
sshbuf-getput-basic.c	17
openbsd-compat/recallocarray.c	1
sshbuf-misc.c	2
openbsd-compat/base64.c	2
cipher.c	8
openbsd-compat/bcrypt_pbkdf.c	2
hash.c	1
openbsd-compat/blowfish.c	6
openbsd-compat/arc4random.c	6
openbsd-compat/./arc4random.h	3
openbsd-compat/bsd-getentropy.c	1
openbsd-compat/./chacha_private.h	3
cipher-chachapoly-libcrypto.c	3
poly1305.c	1
openbsd-compat/timingsafe_bcmp.c	1
ssherr.c	1
digest-openssl.c	4
openbsd-compat/strlcat.c	1
readpass.c	6
openbsd-compat/readpassphrase.c	1
openbsd-compat/bsd-closefrom.c	2
ssh-sk.c	8
sshkey-xmss.c	1

Fuzzer: kex_fuzz

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	490	35.2%
gold	[1:9]	135	9.71%
yellow	[10:29]	3	0.21%
greenyellow	[30:49]	3	0.21%
lawngreen	50+	759	54.6%
All colors	1390	100

Fuzz blockers

The followings are the branches where fuzzer fails to bypass.

Unique non-covered Complexity	Unique Reachable Complexities	Unique Reachable Functions	All non-covered Complexity	All Reachable Complexity	Function Name	Function Callsite	Blocked Branch
1383	7125	13 : View List ['ssh_packet_log_type', 'ssh_packet_check_rekey', 'sshbuf_consume_end', 'ssh_packet_disconnect', 'sshbuf_ptr', 'sshbuf_putb', 'sshbuf_get_u8', 'sshbuf_consume', 'ssh_packet_write_wait', 'sshbuf_reset', 'ssh_packet_enable_delayed_compress', 'uncompress_buffer', 'sshpkt_disconnect']	1383	7599	ssh_packet_read_poll2	call site: 01312	/src/openssh/packet.c:1692
1131	1131	1 : View List ['ssh_packet_disconnect']	1383	7404	ssh_packet_read_poll2	call site: 01316	/src/openssh/packet.c:1713
1131	1131	1 : View List ['ssh_packet_disconnect']	1131	2234	ssh_packet_send2_wrapped	call site: 00885	/src/openssh/packet.c:1302
1131	1131	1 : View List ['ssh_packet_disconnect']	1131	1131	kex_choose_conf	call site: 01087	/src/openssh/kex.c:966
790	790	4 : View List ['get_peer_port', 'get_local_port', 'get_peer_ipaddr', 'get_local_ipaddr']	790	790	ssh_remote_ipaddr	call site: 00574	/src/openssh/packet.c:521
727	737	8 : View List ['BN_clear_free', 'getline', 'arc4random_uniform', 'dh_new_group', 'rewind', 'parse_prime', 'fclose', 'free']	727	1425	choose_dh	call site: 00000	/src/openssh/dh.c:167
548	755	7 : View List ['__errno_location', 'ssh_packet_write_poll', 'ppoll', 'ms_subtract_diff', 'monotime_tv', 'ssh_packet_have_data_to_write', 'ms_to_timespec']	548	755	ssh_packet_write_wait	call site: 00933	/src/openssh/packet.c:2135
486	920	4 : View List ['sshfatal', 'free', 'match_filter_denylist', 'sshlog']	486	920	compat_kex_proposal	call site: 00638	/src/openssh/compat.c:146
433	433	1 : View List ['sshkey_parse_private_pem_fileblob']	433	433	sshkey_parse_private_fileblob_type	call site: 00355	/src/openssh/sshkey.c:3585
285	509	3 : View List ['bcrypt_pbkdf', 'sshbuf_get_string', 'strlen']	289	3053	private2_decrypt	call site: 00199	/src/openssh/sshkey.c:3025
283	283	1 : View List ['ssh_packet_read_poll2_mux']	283	283	ssh_packet_read_poll2	call site: 01256	/src/openssh/packet.c:1570
252	929	3 : View List ['uncompress_buffer', 'sshbuf_putb', 'sshbuf_reset']	252	4159	ssh_packet_read_poll2	call site: 01323	/src/openssh/packet.c:1744

Runtime coverage analysis

Covered functions

498

Functions that are reachable but not covered

181

Reachable functions

454

Percentage of reachable functions covered

60.13%

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.

Warning: The number of covered functions are larger than the number of reachable functions. This means that there are more functions covered at runtime than are extracted using static analysis. This is likely a result of the static analysis component failing to extract the right call graph or the coverage runtime being compiled with sanitizers in code that the static analysis has not analysed. This can happen if lto/gold is not used in all places that coverage instrumentation is used.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
regress/misc/fuzz-harness/kex_fuzz.cc	11
log.c	6
xmalloc.c	4
fatal.c	1
match.c	5
openbsd-compat/strlcpy.c	1
openbsd-compat/vis.c	2
cleanup.c	1
sshbuf.c	16
sshkey.c	42
misc.c	10
sshbuf-getput-basic.c	15
openbsd-compat/recallocarray.c	1
sshbuf-misc.c	2
openbsd-compat/base64.c	1
openbsd-compat/freezero.c	1
cipher.c	13
openbsd-compat/bcrypt_pbkdf.c	2
hash.c	1
openbsd-compat/blowfish.c	6
openbsd-compat/arc4random.c	6
openbsd-compat/./arc4random.h	3
openbsd-compat/bsd-getentropy.c	1
openbsd-compat/./chacha_private.h	3
cipher-chachapoly-libcrypto.c	4
poly1305.c	1
openbsd-compat/timingsafe_bcmp.c	1
ssherr.c	1
ssh_api.c	11
entropy.c	1
openbsd-compat/openssl-compat.c	2
packet.c	48
kex.c	22
mac.c	6
umac.c	26
./umac.c	26
hmac.c	6
digest-openssl.c	9
canohost.c	7
kex-names.c	7
openbsd-compat/strlcat.c	1
compat.c	2
dispatch.c	2

Fuzzer: sshsig_fuzz

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	71	26.6%
gold	[1:9]	3	1.12%
yellow	[10:29]	1	0.37%
greenyellow	[30:49]	9	3.38%
lawngreen	50+	182	68.4%
All colors	266	100

Fuzz blockers

The followings are the branches where fuzzer fails to bypass.

Unique non-covered Complexity	Unique Reachable Complexities	Unique Reachable Functions	All non-covered Complexity	All Reachable Complexity	Function Name	Function Callsite	Blocked Branch
166	166	1 : View List ['xstrdup']	166	166	tohex	call site: 00118	/src/openssh/misc.c:1539
162	162	1 : View List ['sshfatal']	162	162	xcalloc	call site: 00130	/src/openssh/xmalloc.c:56
122	158	5 : View List ['strlcpy', 'do_log', 'strrchr', 'match_pattern_list', 'getpid']	122	158	sshlogv	call site: 00023	/src/openssh/log.c:460
82	242	4 : View List ['xmss_sign_open', 'sshkey_xmss_params', 'malloc', 'sshlog']	82	455	ssh_xmss_verify	call site: 00000	/src/openssh/ssh-xmss.c:314
50	50	3 : View List ['sshkey_ec_validate_public', 'EC_KEY_get0_public_key', 'EC_KEY_get0_group']	52	52	ssh_ecdsa_deserialize_public	call site: 00000	/src/openssh/ssh-ecdsa.c:177
13	13	1 : View List ['rsa_hash_id_from_keyname']	21	703	ssh_rsa_verify	call site: 00000	/src/openssh/ssh-rsa.c:508
6	6	3 : View List ['closelog', 'exit', 'openlog']	6	6	log_init	call site: 00008	/src/openssh/log.c:213
2	217	2 : View List ['sshbuf_get_string_direct', 'EC_KEY_set_public_key']	6	221	sshbuf_get_eckey	call site: 00000	/src/openssh/sshbuf-getput-crypto.c:110
2	2	1 : View List ['strlen']	2	2	strlcat	call site: 00133	/src/openssh/openbsd-compat/strlcat.c:48
2	2	1 : View List ['BN_clear_free']	2	2	sshbuf_get_bignum2	call site: 00000	/src/openssh/sshbuf-getput-crypto.c:48
0	254	1 : View List ['sshkey_get_sigtype']	0	1066	cert_parse	call site: 00000	/src/openssh/sshkey.c:1869
0	233	1 : View List ['sshkey_deserialize_sk']	0	233	ssh_ecdsa_sk_deserialize_public	call site: 00000	/src/openssh/ssh-ecdsa-sk.c:133

Runtime coverage analysis

Covered functions

154

Functions that are reachable but not covered

37

Reachable functions

108

Percentage of reachable functions covered

65.74%

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.

Warning: The number of covered functions are larger than the number of reachable functions. This means that there are more functions covered at runtime than are extracted using static analysis. This is likely a result of the static analysis component failing to extract the right call graph or the coverage runtime being compiled with sanitizers in code that the static analysis has not analysed. This can happen if lto/gold is not used in all places that coverage instrumentation is used.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
regress/misc/fuzz-harness/sshsig_fuzz.cc	1
sshbuf.c	13
log.c	5
sshsig.c	6
misc.c	2
match.c	2
openbsd-compat/strlcpy.c	1
openbsd-compat/vis.c	2
openbsd-compat/freezero.c	1
sshbuf-misc.c	1
openbsd-compat/timingsafe_bcmp.c	1
sshbuf-getput-basic.c	10
ssherr.c	1
digest-openssl.c	5
xmalloc.c	3
fatal.c	1
cleanup.c	1
openbsd-compat/strlcat.c	1
openbsd-compat/recallocarray.c	1
sshkey.c	17

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
sshkey_check_revoked	/src/openssh/authfile.c	2	['N/A', 'N/A']	22	0	58	9	2	178	0	1399	650
kex_gen_client	/src/openssh/kexgen.c	1	['N/A']	27	0	134	24	5	449	0	2231	583
ssh_xmss_sign	/src/openssh/ssh-xmss.c	9	['N/A', 'N/A', 'N/A', 'N/A', 'size_t', 'N/A', 'N/A', 'N/A', 'int']	15	0	375	67	27	140	0	826	335
xxxmain	/src/openssh/regress/misc/fuzz-harness/../../../ssh-agent.c	2	['int', 'N/A']	19	0	848	142	33	437	0	2507	298
kexgex_server	/src/openssh/kexgexs.c	1	['N/A']	28	0	17	3	2	374	0	1965	173
ssh_sk_sign	/src/openssh/regress/misc/sk-dummy/sk-dummy.c	10	['int', 'N/A', 'size_t', 'N/A', 'N/A', 'size_t', 'char', 'N/A', 'N/A', 'N/A']	7	0	180	22	7	63	0	199	162
sshauthopt_from_cert	/src/openssh/auth-options.c	1	['N/A']	7	0	108	19	9	74	0	500	124
sshkey_save_private	/src/openssh/authfile.c	7	['N/A', 'N/A', 'N/A', 'N/A', 'int', 'N/A', 'int']	22	0	86	11	5	184	0	1045	121
ssh_krl_to_blob	/src/openssh/krl.c	2	['N/A', 'N/A']	17	0	412	78	30	78	0	486	96
subprocess	/src/openssh/misc.c	9	['N/A', 'N/A', 'int', 'N/A', 'N/A', 'int', 'N/A', 'N/A', 'N/A']	8	0	708	108	31	69	0	326	87

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

Functions statically reachable by fuzzers

823 / 1283

Cyclomatic complexity statically reachable by fuzzers

6088 / 9069

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	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.

regress/misc/fuzz-harness/sshsigopt_fuzz.cc

Dictionary

Use this with the libFuzzer -dict=DICT.file flag

regress/misc/fuzz-harness/sig_fuzz.cc

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=['sshlog', 'freezero', 'sshkey_is_cert', 'sshbuf_free']

regress/misc/fuzz-harness/authopt_fuzz.cc

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=['sshauthopt_parse', 'recallocarray', 'sshauthopt_merge', 'a2port', 'dup_strings']

regress/misc/fuzz-harness/pubkey_fuzz.cc

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=['sshlog', 'sshbuf_fromb', 'sshbuf_set_parent', 'cert_new', 'sshkey_free']

regress/misc/fuzz-harness/privkey_fuzz.cc

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=['sshlog', 'sshbuf_ptr', 'sshkey_private_deserialize', 'sshbuf_set_parent', 'sshbuf_fromb', 'cert_new', 'sshkey_free', 'sshkey_froms']

regress/misc/fuzz-harness/agent_fuzz.cc

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=['identity_permitted', 'process_add_smartcard_key', 'process_add_identity', 'sshkey_ssh_name', 'sshkey_fingerprint', 'sshkey_verify', 'sshkey_parse_private_fileblob_type', 'xstrdup', 'private2_decrypt', 'fingerprint_b64']

regress/misc/fuzz-harness/kex_fuzz.cc

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=['ssh_remote_ipaddr', 'crypto_hash_sha512', 'ssh_packet_close_internal', 'sshkey_parse_private_fileblob_type', 'private2_decrypt', 'cipher_init', 'sshkey_check_rsa_length', 'ssh_packet_write_poll', 'ssh_packet_send2_wrapped', 'ssh_packet_next']

regress/misc/fuzz-harness/sshsig_fuzz.cc

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=['match_pattern_list', 'hash_buffer', 'log_init', 'sshbuf_fromb', 'sshlog', 'ssh_digest_memory', 'tohex', 'sshbuf_allocate', 'sshbuf_put_stringb', 'sshsig_wrap_verify']

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
sshauthopt_merge	94	51	54.25%	['authopt_fuzz']
sshbuf_dtob64	33	18	54.54%	[]
cipher_init	69	24	34.78%	['agent_fuzz', 'kex_fuzz']
cipher_crypt	44	6	13.63%	['agent_fuzz', 'kex_fuzz']
log_init	61	8	13.11%	['agent_fuzz', 'kex_fuzz', 'sshsig_fuzz']
strnvis	37	19	51.35%	['sig_fuzz', 'authopt_fuzz', 'pubkey_fuzz', 'privkey_fuzz', 'agent_fuzz', 'kex_fuzz', 'sshsig_fuzz']
process_sign_request2	130	37	28.46%	['agent_fuzz']
identity_permitted	68	12	17.64%	['agent_fuzz']
process_add_identity	104	25	24.03%	['agent_fuzz']
process_add_smartcard_key	82	27	32.92%	['agent_fuzz']
process_remove_smartcard_key	35	14	40.0%	['agent_fuzz']
ssh_err	128	70	54.68%	['sig_fuzz', 'agent_fuzz', 'kex_fuzz', 'sshsig_fuzz']
sshkey_fingerprint	38	17	44.73%	['agent_fuzz']
private2_decrypt	120	65	54.16%	['agent_fuzz', 'kex_fuzz']
choose_dh	65	11	16.92%	[]
kex_send_kexinit	31	17	54.83%	['kex_fuzz']
ssh_packet_send2	54	20	37.03%	['kex_fuzz']
ssh_packet_write_wait	40	8	20.0%	['kex_fuzz']
sshkey_unshield_private	55	9	16.36%	['agent_fuzz']

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/openssh/hmac.c	['kex_fuzz']	['kex_fuzz']
/src/openssh/log.c	['sig_fuzz', 'authopt_fuzz', 'pubkey_fuzz', 'privkey_fuzz', 'agent_fuzz', 'kex_fuzz', 'sshsig_fuzz']	['sig_fuzz', 'pubkey_fuzz', 'privkey_fuzz', 'agent_fuzz', 'kex_fuzz', 'sshsig_fuzz']
/src/openssh/kexdh.c	[]	[]
/src/openssh/kexgex.c	[]	[]
/src/openssh/openbsd-compat/base64.c	['agent_fuzz', 'kex_fuzz']	['agent_fuzz', 'kex_fuzz']
/src/openssh/misc.c	['sshsigopt_fuzz', 'sig_fuzz', 'authopt_fuzz', 'pubkey_fuzz', 'privkey_fuzz', 'agent_fuzz', 'kex_fuzz', 'sshsig_fuzz']	['sshsigopt_fuzz', 'authopt_fuzz', 'agent_fuzz', 'kex_fuzz', 'sshsig_fuzz']
/src/openssh/openbsd-compat/port-net.c	[]	[]
/src/openssh/ssherr.c	['sig_fuzz', 'agent_fuzz', 'kex_fuzz', 'sshsig_fuzz']	['agent_fuzz', 'kex_fuzz', 'sshsig_fuzz']
/src/openssh/openbsd-compat/libressl-api-compat.c	[]	[]
/src/openssh/smult_curve25519_ref.c	[]	[]
/src/openssh/xmss_hash.c	[]	[]
/src/openssh/match.c	['sig_fuzz', 'authopt_fuzz', 'pubkey_fuzz', 'privkey_fuzz', 'agent_fuzz', 'kex_fuzz', 'sshsig_fuzz']	['kex_fuzz', 'sshsig_fuzz']
/src/openssh/ssh-ed25519-sk.c	[]	[]
/src/openssh/sshbuf-misc.c	['agent_fuzz', 'kex_fuzz', 'sshsig_fuzz']	['agent_fuzz', 'kex_fuzz', 'sshsig_fuzz']
/src/openssh/openbsd-compat/./arc4random.h	['agent_fuzz', 'kex_fuzz']	[]
/src/openssh/ssh-ecdsa-sk.c	[]	[]
/src/openssh/xmalloc.c	['authopt_fuzz', 'agent_fuzz', 'kex_fuzz', 'sshsig_fuzz']	['agent_fuzz', 'kex_fuzz', 'sshsig_fuzz']
/src/openssh/ssh-pkcs11.c	['agent_fuzz']	[]
/src/openssh/sshbuf-io.c	[]	[]
/src/openssh/kexgen.c	[]	[]
/src/openssh/kexgexc.c	[]	[]
/src/openssh/auth-options.c	['authopt_fuzz']	['authopt_fuzz']
/src/openssh/openbsd-compat/arc4random_uniform.c	[]	[]
/src/openssh/authfile.c	[]	[]
/src/openssh/ssh-ed25519.c	[]	[]
/src/openssh/platform-misc.c	[]	[]
/src/openssh/kexc25519.c	[]	[]
/src/openssh/dispatch.c	['kex_fuzz']	['kex_fuzz']
/src/openssh/kexecdh.c	[]	[]
/src/openssh/openbsd-compat/bsd-closefrom.c	['agent_fuzz']	[]
/src/openssh/regress/misc/fuzz-harness/authopt_fuzz.cc	['authopt_fuzz']	['authopt_fuzz']
/src/openssh/cipher-chachapoly-libcrypto.c	['agent_fuzz', 'kex_fuzz']	[]
/src/openssh/readpass.c	['agent_fuzz']	['agent_fuzz']
/src/openssh/utf8.c	[]	[]
/src/openssh/openbsd-compat/readpassphrase.c	['agent_fuzz']	[]
/src/openssh/digest-openssl.c	['agent_fuzz', 'kex_fuzz', 'sshsig_fuzz']	['agent_fuzz', 'kex_fuzz', 'sshsig_fuzz']
/src/openssh/openbsd-compat/recallocarray.c	['authopt_fuzz', 'agent_fuzz', 'kex_fuzz', 'sshsig_fuzz']	['authopt_fuzz', 'agent_fuzz', 'kex_fuzz', 'sshsig_fuzz']
/src/openssh/fatal.c	['authopt_fuzz', 'agent_fuzz', 'kex_fuzz', 'sshsig_fuzz']	[]
/src/openssh/dh.c	[]	[]
/src/openssh/regress/misc/fuzz-harness/sshsigopt_fuzz.cc	['sshsigopt_fuzz']	['sshsigopt_fuzz']
/src/openssh/regress/misc/sk-dummy/sk-dummy.c	[]	[]
/src/openssh/compat.c	['kex_fuzz']	['kex_fuzz']
/src/openssh/umac.c	['kex_fuzz']	['kex_fuzz']
/src/openssh/atomicio.c	[]	[]
/src/openssh/kex.c	['kex_fuzz']	['kex_fuzz']
/src/openssh/poly1305.c	['agent_fuzz', 'kex_fuzz']	[]
/src/openssh/./umac.c	['kex_fuzz']	['kex_fuzz']
/src/openssh/packet.c	['kex_fuzz']	['kex_fuzz']
/src/openssh/openbsd-compat/vis.c	['sig_fuzz', 'authopt_fuzz', 'pubkey_fuzz', 'privkey_fuzz', 'agent_fuzz', 'kex_fuzz', 'sshsig_fuzz']	['agent_fuzz', 'kex_fuzz']
/src/openssh/ed25519.c	[]	[]
/src/openssh/kexgexs.c	[]	[]
/src/openssh/xmss_hash_address.c	[]	[]
/src/openssh/openbsd-compat/arc4random.c	['agent_fuzz', 'kex_fuzz']	['agent_fuzz', 'kex_fuzz']
/src/openssh/sshkey-xmss.c	['agent_fuzz']	[]
/src/openssh/regress/misc/fuzz-harness/ssh-sk-null.cc	[]	[]
/src/openssh/openbsd-compat/strlcat.c	['agent_fuzz', 'kex_fuzz', 'sshsig_fuzz']	['agent_fuzz', 'kex_fuzz', 'sshsig_fuzz']
/src/openssh/openbsd-compat/getopt_long.c	[]	[]
/src/openssh/bitmap.c	[]	[]
/src/openssh/platform-tracing.c	[]	[]
/src/openssh/krl.c	[]	[]
/src/openssh/regress/misc/fuzz-harness/../../../ssh-agent.c	['agent_fuzz']	[]
/src/openssh/openbsd-compat/bsd-getpeereid.c	[]	[]
/src/openssh/ssh-sk.c	['agent_fuzz']	[]
/src/openssh/regress/misc/fuzz-harness/sshsig_fuzz.cc	['sshsig_fuzz']	['sshsig_fuzz']
/src/openssh/regress/misc/fuzz-harness/privkey_fuzz.cc	['privkey_fuzz']	['privkey_fuzz']
/src/openssh/mac.c	['kex_fuzz']	['kex_fuzz']
/src/openssh/openbsd-compat/bsd-getentropy.c	['agent_fuzz', 'kex_fuzz']	['agent_fuzz', 'kex_fuzz']
/src/openssh/openbsd-compat/bcrypt_pbkdf.c	['agent_fuzz', 'kex_fuzz']	['agent_fuzz']
/src/openssh/openbsd-compat/bsd-misc.c	[]	[]
/src/openssh/cipher.c	['agent_fuzz', 'kex_fuzz']	['agent_fuzz', 'kex_fuzz']
/src/openssh/sshbuf-getput-crypto.c	[]	[]
/src/openssh/regress/misc/fuzz-harness/pubkey_fuzz.cc	['pubkey_fuzz']	['pubkey_fuzz']
/src/openssh/regress/misc/fuzz-harness/agent_fuzz.cc	['agent_fuzz']	['agent_fuzz']
/src/openssh/ssh_api.c	['kex_fuzz']	['kex_fuzz']
/src/openssh/ssh-rsa.c	[]	[]
/src/openssh/canohost.c	['kex_fuzz']	[]
/src/openssh/sntrup761.c	[]	[]
/src/openssh/xmss_fast.c	[]	[]
/src/openssh/xmss_wots.c	[]	[]
/src/openssh/kexsntrup761x25519.c	[]	[]
/src/openssh/xmss_commons.c	[]	[]
/src/openssh/addrmatch.c	[]	[]
/src/openssh/openbsd-compat/openssl-compat.c	['kex_fuzz']	['kex_fuzz']
/src/openssh/regress/misc/fuzz-harness/kex_fuzz.cc	['kex_fuzz']	['kex_fuzz']
/src/openssh/hash.c	['agent_fuzz', 'kex_fuzz']	['agent_fuzz', 'kex_fuzz']
/src/openssh/openbsd-compat/freezero.c	['sig_fuzz', 'authopt_fuzz', 'pubkey_fuzz', 'privkey_fuzz', 'agent_fuzz', 'kex_fuzz', 'sshsig_fuzz']	['sig_fuzz', 'authopt_fuzz', 'pubkey_fuzz', 'privkey_fuzz', 'agent_fuzz', 'kex_fuzz', 'sshsig_fuzz']
/src/openssh/sshbuf-getput-basic.c	['pubkey_fuzz', 'privkey_fuzz', 'agent_fuzz', 'kex_fuzz', 'sshsig_fuzz']	['pubkey_fuzz', 'privkey_fuzz', 'agent_fuzz', 'kex_fuzz', 'sshsig_fuzz']
/src/openssh/openbsd-compat/blowfish.c	['agent_fuzz', 'kex_fuzz']	['agent_fuzz']
/src/openssh/openbsd-compat/strlcpy.c	['sig_fuzz', 'authopt_fuzz', 'pubkey_fuzz', 'privkey_fuzz', 'agent_fuzz', 'kex_fuzz', 'sshsig_fuzz']	['agent_fuzz', 'kex_fuzz']
/src/openssh/regress/misc/fuzz-harness/sig_fuzz.cc	['sig_fuzz']	['sig_fuzz']
/src/openssh/cleanup.c	['authopt_fuzz', 'kex_fuzz', 'sshsig_fuzz']	[]
/src/openssh/ssh-ecdsa.c	[]	[]
/src/openssh/sshkey.c	['sig_fuzz', 'pubkey_fuzz', 'privkey_fuzz', 'agent_fuzz', 'kex_fuzz', 'sshsig_fuzz']	['sig_fuzz', 'pubkey_fuzz', 'privkey_fuzz', 'agent_fuzz', 'kex_fuzz', 'sshsig_fuzz']
/src/openssh/ssh-xmss.c	[]	[]
/src/openssh/sshsig.c	['sshsigopt_fuzz', 'sshsig_fuzz']	['sshsigopt_fuzz', 'sshsig_fuzz']
/src/openssh/regress/misc/fuzz-harness/agent_fuzz_helper.c	['agent_fuzz']	['agent_fuzz']
/src/openssh/addr.c	[]	[]
/src/openssh/openbsd-compat/timingsafe_bcmp.c	['agent_fuzz', 'kex_fuzz', 'sshsig_fuzz']	['agent_fuzz', 'kex_fuzz', 'sshsig_fuzz']
/src/openssh/platform-pledge.c	[]	[]
/src/openssh/sshbuf.c	['sig_fuzz', 'pubkey_fuzz', 'privkey_fuzz', 'agent_fuzz', 'kex_fuzz', 'sshsig_fuzz']	['sig_fuzz', 'pubkey_fuzz', 'privkey_fuzz', 'agent_fuzz', 'kex_fuzz', 'sshsig_fuzz']
/src/openssh/entropy.c	['kex_fuzz']	['kex_fuzz']
/src/openssh/kex-names.c	['kex_fuzz']	['kex_fuzz']
/src/openssh/openbsd-compat/strtonum.c	['authopt_fuzz']	['authopt_fuzz']
/src/openssh/openbsd-compat/./chacha_private.h	['agent_fuzz', 'kex_fuzz']	[]

Directories in report

Directory
/src/openssh/regress/misc/sk-dummy/
/src/openssh/regress/misc/fuzz-harness/../../../
/src/openssh/./
/src/openssh/openbsd-compat/
/src/openssh/
/src/openssh/regress/misc/fuzz-harness/
/src/openssh/openbsd-compat/./