High level conclusions

Fuzzers reach 37.95% of cyclomatic complexity.

Fuzzers reach 31.04% of all functions.

Fuzzer sig_fuzz is blocked:

The runtime code coverage of sig_fuzz covers 29.31% of its statically reachable code. This means there is some place that blocks the fuzzer to continue exploring more code at run time.

Reachability and coverage overview

Functions statically reachable by fuzzers

519 / 1672

Cyclomatic complexity statically reachable by fuzzers

3914 / 10313

Runtime code coverage of functions

431 / 1672

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: 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	57	36.7%
gold	[1:9]	3	1.93%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	2	1.29%
lawngreen	50+	93	60.0%
All colors	155	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
169	748	4 : View List ['free', 'strchr', 'xstrdup', 'a2tun']	169	748	a2tun	call site: 00084	/src/hpn-ssh/misc.c:580
2	2	1 : View List ['getpagesize']	8	8	recallocarray	call site: 00052	/src/hpn-ssh/openbsd-compat/recallocarray.c:64
2	2	1 : View List ['ntohs']	2	2	a2port	call site: 00077	/src/hpn-ssh/misc.c:568
0	11	1 : View List ['sshauthopt_free']	0	11	sshauthopt_merge	call site: 00149	/src/hpn-ssh/auth-options.c:635
0	0	None	12	100	sshauthopt_merge	call site: 00135	/src/hpn-ssh/auth-options.c:541
0	0	None	8	19	sshauthopt_merge	call site: 00146	/src/hpn-ssh/auth-options.c:614
0	0	None	6	669	sshauthopt_parse	call site: 00003	/src/hpn-ssh/auth-options.c:333
0	0	None	2	2	recallocarray	call site: 00054	/src/hpn-ssh/openbsd-compat/recallocarray.c:77
0	0	None	2	2	strtonum	call site: 00072	/src/hpn-ssh/openbsd-compat/strtonum.c:52
0	0	None	0	11	sshauthopt_parse	call site: 00004	/src/hpn-ssh/auth-options.c:335
0	0	None	0	11	sshauthopt_parse	call site: 00042	/src/hpn-ssh/auth-options.c:405
0	0	None	0	11	sshauthopt_parse	call site: 00045	/src/hpn-ssh/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: 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	72	58.5%
gold	[1:9]	8	6.50%
yellow	[10:29]	1	0.81%
greenyellow	[30:49]	1	0.81%
lawngreen	50+	41	33.3%
All colors	123	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
465	465	2 : View List ['sshkey_free', 'cert_new']	465	465	sshkey_new	call site: 00010	/src/hpn-ssh/sshkey.c:733
225	225	1 : View List ['sshkey_free']	225	225	sshkey_generate	call site: 00007	/src/hpn-ssh/sshkey.c:1521
165	165	1 : View List ['_getentropy_fail']	169	230	_rs_stir	call site: 00000	/src/hpn-ssh/openbsd-compat/arc4random.c:116
165	165	2 : View List ['sshfatal', 'ERR_get_error']	165	165	_ssh_compat_getentropy	call site: 00000	/src/hpn-ssh/openbsd-compat/bsd-getentropy.c:45
158	158	5 : View List ['do_log', 'match_pattern_list', 'getpid', 'strlcpy', 'strrchr']	158	158	sshlogv	call site: 00031	/src/hpn-ssh/log.c:469
73	73	2 : View List ['abort', 'ssh_err']	73	73	generate_or_die(int,unsignedint)	call site: 00000	/src/hpn-ssh/regress/misc/fuzz-harness/sig_fuzz.cc:18
13	13	1 : View List ['rsa_hash_id_from_keyname']	23	674	ssh_rsa_verify	call site: 00000	/src/hpn-ssh/ssh-rsa.c:504
2	2	1 : View List ['_exit']	2	2	_rs_init	call site: 00000	/src/hpn-ssh/openbsd-compat/arc4random.c:102
2	2	1 : View List ['memset']	2	2	_rs_forkdetect	call site: 00000	/src/hpn-ssh/openbsd-compat/./arc4random.h:60
2	2	1 : View List ['munmap']	2	2	_rs_allocate	call site: 00000	/src/hpn-ssh/openbsd-compat/./arc4random.h:73
2	2	1 : View List ['BN_clear_free']	2	2	sshbuf_get_bignum2	call site: 00000	/src/hpn-ssh/sshbuf-getput-crypto.c:48
0	199	1 : View List ['sshbuf_free']	0	199	sshbuf_froms	call site: 00000	/src/hpn-ssh/sshbuf-getput-basic.c:561

Runtime coverage analysis

Covered functions

101

Functions that are reachable but not covered

41

Reachable functions

58

Percentage of reachable functions covered

29.31%

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	14
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: 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+	32	100.%
All colors	32	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/hpn-ssh/misc.c:2610
0	0	None	0	3	sshsigopt_parse	call site: 00029	/src/hpn-ssh/sshsig.c:720
0	0	None	0	0	opt_dequote	call site: 00013	/src/hpn-ssh/misc.c:2634
0	0	None	0	0	sshsigopt_parse	call site: 00002	/src/hpn-ssh/sshsig.c:648

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: 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	50	26.3%
gold	[1:9]	4	2.10%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	2	1.05%
lawngreen	50+	134	70.5%
All colors	190	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
158	158	5 : View List ['do_log', 'match_pattern_list', 'getpid', 'strlcpy', 'strrchr']	158	158	sshlogv	call site: 00015	/src/hpn-ssh/log.c:469
82	243	4 : View List ['xmss_sign_open', 'malloc', 'sshkey_xmss_params', 'sshlog']	82	452	ssh_xmss_verify	call site: 00000	/src/hpn-ssh/ssh-xmss.c:314
49	49	5 : View List ['EVP_PKEY_set1_EC_KEY', 'sshkey_ec_validate_public', 'EVP_PKEY_new', 'EC_KEY_get0_group', 'EC_KEY_get0_public_key']	55	55	ssh_ecdsa_deserialize_public	call site: 00000	/src/hpn-ssh/ssh-ecdsa.c:251
13	13	1 : View List ['rsa_hash_id_from_keyname']	23	674	ssh_rsa_verify	call site: 00000	/src/hpn-ssh/ssh-rsa.c:504
2	219	2 : View List ['EC_KEY_set_public_key', 'sshbuf_get_string_direct']	6	223	sshbuf_get_eckey	call site: 00000	/src/hpn-ssh/sshbuf-getput-crypto.c:110
2	2	1 : View List ['BN_clear_free']	2	2	sshbuf_get_bignum2	call site: 00000	/src/hpn-ssh/sshbuf-getput-crypto.c:48
2	2	1 : View List ['explicit_bzero']	2	2	sshkey_xmss_free_state	call site: 00000	/src/hpn-ssh/sshkey-xmss.c:144
2	2	1 : View List ['munmap']	2	2	sshkey_prekey_free	call site: 00106	/src/hpn-ssh/sshkey.c:781
0	235	1 : View List ['sshkey_deserialize_sk']	0	235	ssh_ecdsa_sk_deserialize_public	call site: 00000	/src/hpn-ssh/ssh-ecdsa-sk.c:133
0	225	1 : View List ['sshkey_free']	0	225	sshkey_new	call site: 00087	/src/hpn-ssh/sshkey.c:734
0	225	1 : View List ['cert_free']	0	225	cert_new	call site: 00089	/src/hpn-ssh/sshkey.c:699
0	199	1 : View List ['sshbuf_free']	0	199	sshbuf_froms	call site: 00142	/src/hpn-ssh/sshbuf-getput-basic.c:561

Runtime coverage analysis

Covered functions

134

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/pubkey_fuzz.cc	1
sshkey.c	19
sshbuf.c	14
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	9
openbsd-compat/recallocarray.c	1

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	51	25.0%
gold	[1:9]	0	0.0%
yellow	[10:29]	0	0.0%
greenyellow	[30:49]	1	0.49%
lawngreen	50+	152	74.5%
All colors	204	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
209	209	1 : View List ['ssh_digest_buffer']	209	607	webauthn_check_prepare_hash	call site: 00000	/src/hpn-ssh/ssh-ecdsa-sk.c:217
158	158	5 : View List ['do_log', 'match_pattern_list', 'getpid', 'strlcpy', 'strrchr']	158	158	sshlogv	call site: 00016	/src/hpn-ssh/log.c:469
82	243	4 : View List ['xmss_sign_open', 'malloc', 'sshkey_xmss_params', 'sshlog']	82	452	ssh_xmss_verify	call site: 00000	/src/hpn-ssh/ssh-xmss.c:314
13	13	1 : View List ['rsa_hash_id_from_keyname']	23	674	ssh_rsa_verify	call site: 00000	/src/hpn-ssh/ssh-rsa.c:504
2	193	2 : View List ['sshbuf_ptr', 'timingsafe_bcmp']	2	193	sshbuf_cmp	call site: 00000	/src/hpn-ssh/sshbuf-misc.c:245
2	2	1 : View List ['EVP_PKEY_get1_RSA']	30	1010	ssh_rsa_deserialize_private	call site: 00000	/src/hpn-ssh/ssh-rsa.c:243
2	2	1 : View List ['BN_clear_free']	2	2	sshbuf_get_bignum2	call site: 00000	/src/hpn-ssh/sshbuf-getput-crypto.c:48
2	2	1 : View List ['munmap']	2	2	sshkey_prekey_free	call site: 00116	/src/hpn-ssh/sshkey.c:781
0	726	1 : View List ['sshbuf_put_u8']	0	731	sshbuf_dtob64	call site: 00000	/src/hpn-ssh/sshbuf-misc.c:111
0	225	1 : View List ['sshkey_free']	0	225	sshkey_new	call site: 00097	/src/hpn-ssh/sshkey.c:734
0	225	1 : View List ['cert_free']	0	225	cert_new	call site: 00099	/src/hpn-ssh/sshkey.c:699
0	199	1 : View List ['sshbuf_free']	0	199	sshbuf_froms	call site: 00070	/src/hpn-ssh/sshbuf-getput-basic.c:561

Runtime coverage analysis

Covered functions

162

Functions that are reachable but not covered

34

Reachable functions

84

Percentage of reachable functions covered

59.52%

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	14
sshkey.c	22
sshbuf-getput-basic.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
openbsd-compat/recallocarray.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	1459	70.7%
gold	[1:9]	80	3.88%
yellow	[10:29]	57	2.76%
greenyellow	[30:49]	13	0.63%
lawngreen	50+	452	21.9%
All colors	2061	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
3997	5670	17 : View List ['confirm_key', 'sshkey_fingerprint', 'match_pattern_list', 'sshbuf_ptr', 'sshkey_sign', 'lookup_identity', 'sshbuf_len', 'buf_equal', 'notify_start', 'check_websafe_message_contents', 'parse_userauth_request', 'sshkey_is_sk', 'read_passphrase', 'agent_decode_alg', 'sshkey_equal', 'sshkey_type', 'identity_permitted']	4651	10913	process_sign_request2	call site: 00938	/src/hpn-ssh/regress/misc/fuzz-harness/../../../ssh-agent.c:860
2547	4121	20 : View List ['socket_is_remote', 'sshkey_fingerprint', 'strerror', 'sshkey_shield_private', 'sshkey_is_sk', 'identity_permitted', 'parse_key_constraints', '__errno_location', 'match_pattern_list', 'lookup_identity', 'xcalloc', 'monotime', 'sshkey_type', 'sshfatal', 'xstrdup', 'sshbuf_reset', 'realpath', 'sshkey_ssh_name', 'strcasecmp', 'dump_dest_constraints']	2547	6726	process_add_identity	call site: 01518	/src/hpn-ssh/regress/misc/fuzz-harness/../../../ssh-agent.c:1377
1585	3238	6 : View List ['sshkey_fingerprint', 'free', 'sshlog', 'sshfatal', 'sshkey_type', 'permitted_by_dest_constraints']	1585	3238	identity_permitted	call site: 01045	/src/hpn-ssh/regress/misc/fuzz-harness/../../../ssh-agent.c:488
776	776	3 : View List ['free', 'process_ext_session_bind', 'strcmp']	776	1283	process_extension	call site: 02010	/src/hpn-ssh/regress/misc/fuzz-harness/../../../ssh-agent.c:1797
454	454	1 : View List ['sshkey_parse_private_pem_fileblob']	454	454	sshkey_parse_private_fileblob_type	call site: 00662	/src/hpn-ssh/sshkey.c:3710
403	1206	4 : View List ['sshfatal', 'free_identity', 'identity_permitted', 'lookup_identity']	403	1938	process_remove_identity	call site: 01655	/src/hpn-ssh/regress/misc/fuzz-harness/../../../ssh-agent.c:1006
355	357	8 : View List ['cipher_authlen', 'EVP_CipherInit', 'EVP_CIPHER_CTX_new', 'evp_aes_ctr_mt', 'EVP_CIPHER_CTX_key_length', 'EVP_CIPHER_CTX_ctrl', 'EVP_CIPHER_CTX_set_key_length', 'strstr']	357	364	cipher_init	call site: 00433	/src/hpn-ssh/cipher.c:361
346	346	6 : View List ['waitpid', 'strerror', 'sshfatal', '__errno_location', 'ssh_signal', 'kill']	346	346	notify_complete	call site: 01457	/src/hpn-ssh/readpass.c:320
287	287	2 : View List ['chachapoly_new_mt', 'chachapoly_new']	289	294	cipher_init	call site: 00371	/src/hpn-ssh/cipher.c:345
269	269	2 : View List ['chachapoly_crypt_mt', 'chachapoly_crypt']	269	269	cipher_crypt	call site: 00558	/src/hpn-ssh/cipher.c:480
204	204	1 : View List ['cert_compare']	204	223	sshkey_equal	call site: 00649	/src/hpn-ssh/sshkey.c:857
203	203	2 : View List ['chachapoly_free_mt', 'chachapoly_free']	207	212	cipher_free	call site: 00614	/src/hpn-ssh/cipher.c:570

Runtime coverage analysis

Covered functions

246

Functions that are reachable but not covered

351

Reachable functions

518

Percentage of reachable functions covered

32.24%

NB: The sum of covered functions and functions that are reachable but not covered need not be equal to Reachable functions . This is because the reachability analysis is an approximation and thus at runtime some functions may be covered that are not included in the reachability analysis. This is a limitation of our static analysis capabilities.

Function name	source code lines	source lines hit	percentage hit

Files reached

filename	functions hit
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	41
ssh-pkcs11.c	30
sshkey.c	75
sshbuf.c	14
misc.c	6
openbsd-compat/freezero.c	1
sshbuf-getput-basic.c	18
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-mt.c	10
cipher-chachapoly-libcrypto.c	3
cipher-ctr-mt.c	7
openbsd-compat/timingsafe_bcmp.c	1
poly1305.c	1
ssh-ecdsa.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: 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	78	24.0%
gold	[1:9]	3	0.92%
yellow	[10:29]	3	0.92%
greenyellow	[30:49]	11	3.39%
lawngreen	50+	229	70.6%
All colors	324	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
167	167	1 : View List ['xstrdup']	167	167	tohex	call site: 00125	/src/hpn-ssh/misc.c:1583
163	163	1 : View List ['sshfatal']	163	163	xcalloc	call site: 00137	/src/hpn-ssh/xmalloc.c:56
122	158	5 : View List ['do_log', 'match_pattern_list', 'getpid', 'strlcpy', 'strrchr']	122	158	sshlogv	call site: 00025	/src/hpn-ssh/log.c:469
82	243	4 : View List ['xmss_sign_open', 'malloc', 'sshkey_xmss_params', 'sshlog']	82	452	ssh_xmss_verify	call site: 00000	/src/hpn-ssh/ssh-xmss.c:314
49	49	5 : View List ['EVP_PKEY_set1_EC_KEY', 'sshkey_ec_validate_public', 'EVP_PKEY_new', 'EC_KEY_get0_group', 'EC_KEY_get0_public_key']	55	55	ssh_ecdsa_deserialize_public	call site: 00000	/src/hpn-ssh/ssh-ecdsa.c:251
13	13	1 : View List ['rsa_hash_id_from_keyname']	23	674	ssh_rsa_verify	call site: 00000	/src/hpn-ssh/ssh-rsa.c:504
6	6	3 : View List ['openlog', 'exit', 'closelog']	6	6	log_init	call site: 00008	/src/hpn-ssh/log.c:222
2	219	2 : View List ['EC_KEY_set_public_key', 'sshbuf_get_string_direct']	6	223	sshbuf_get_eckey	call site: 00000	/src/hpn-ssh/sshbuf-getput-crypto.c:110
2	2	1 : View List ['strlen']	2	2	strlcat	call site: 00140	/src/hpn-ssh/openbsd-compat/strlcat.c:48
2	2	1 : View List ['BN_clear_free']	2	2	sshbuf_get_bignum2	call site: 00000	/src/hpn-ssh/sshbuf-getput-crypto.c:48
2	2	1 : View List ['munmap']	2	2	sshkey_prekey_free	call site: 00229	/src/hpn-ssh/sshkey.c:781
0	256	1 : View List ['sshkey_get_sigtype']	0	1052	cert_parse	call site: 00278	/src/hpn-ssh/sshkey.c:1976

Runtime coverage analysis

Covered functions

156

Functions that are reachable but not covered

39

Reachable functions

112

Percentage of reachable functions covered

65.18%

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	14
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	12
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	21

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	1030	57.1%
gold	[1:9]	184	10.2%
yellow	[10:29]	21	1.16%
greenyellow	[30:49]	7	0.38%
lawngreen	50+	559	31.0%
All colors	1801	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
1638	4000	9 : View List ['free', 'ssh_packet_send2_wrapped', 'ssh_packet_need_rekeying', 'monotime', 'sshbuf_len', 'kex_start_rekex', 'sshlog', 'sshbuf_free', 'memset']	1638	4000	ssh_packet_send2	call site: 01065	/src/hpn-ssh/packet.c:1469
1463	1463	1 : View List ['ssh_packet_disconnect']	2317	2852	ssh_packet_send2_wrapped	call site: 01212	/src/hpn-ssh/packet.c:1378
1463	1463	1 : View List ['ssh_packet_disconnect']	1917	8757	ssh_packet_read_poll2	call site: 01725	/src/hpn-ssh/packet.c:1789
1463	1463	1 : View List ['ssh_packet_disconnect']	1463	1463	kex_choose_conf	call site: 01439	/src/hpn-ssh/kex.c:1036
794	794	4 : View List ['get_peer_ipaddr', 'get_local_ipaddr', 'get_local_port', 'get_peer_port']	794	794	ssh_remote_ipaddr	call site: 00874	/src/hpn-ssh/packet.c:548
657	657	1 : View List ['ssh_set_newkeys']	657	657	ssh_packet_send2_wrapped	call site: 01294	/src/hpn-ssh/packet.c:1397
607	925	4 : View List ['sshfatal', 'free', 'sshlog', 'match_filter_denylist']	607	925	compat_kex_proposal	call site: 00948	/src/hpn-ssh/compat.c:176
596	2945	16 : View List ['cipher_authlen', 'match_list', 'choose_comp', 'strcmp', 'ssh_remote_port', 'free', 'choose_enc', 'calloc', 'sshfatal', 'ssh_remote_ipaddr', 'xstrdup', 'choose_mac', 'cipher_by_name', 'sshlog', 'cipher_seclen', 'proposals_match']	596	2953	kex_choose_conf	call site: 01497	/src/hpn-ssh/kex.c:1117
552	761	7 : View List ['ssh_packet_have_data_to_write', 'ms_subtract_diff', 'ssh_packet_write_poll', 'ms_to_timespec', 'monotime_tv', 'ppoll', '__errno_location']	552	761	ssh_packet_write_wait	call site: 01270	/src/hpn-ssh/packet.c:2241
471	853	2 : View List ['ssh_packet_stop_discard', 'sshbuf_len']	471	853	ssh_packet_start_discard	call site: 01691	/src/hpn-ssh/packet.c:439
454	454	1 : View List ['sshkey_parse_private_pem_fileblob']	454	454	sshkey_parse_private_fileblob_type	call site: 00627	/src/hpn-ssh/sshkey.c:3710
355	357	8 : View List ['cipher_authlen', 'EVP_CipherInit', 'EVP_CIPHER_CTX_new', 'evp_aes_ctr_mt', 'EVP_CIPHER_CTX_key_length', 'EVP_CIPHER_CTX_ctrl', 'EVP_CIPHER_CTX_set_key_length', 'strstr']	357	364	cipher_init	call site: 00398	/src/hpn-ssh/cipher.c:361

Runtime coverage analysis

Covered functions

230

Functions that are reachable but not covered

315

Reachable functions

533

Percentage of reachable functions covered

40.9%

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/kex_fuzz.cc	11
log.c	6
xmalloc.c	5
fatal.c	1
match.c	5
openbsd-compat/strlcpy.c	1
openbsd-compat/vis.c	2
cleanup.c	1
sshbuf.c	18
sshkey.c	48
misc.c	11
sshbuf-getput-basic.c	16
openbsd-compat/recallocarray.c	1
sshbuf-misc.c	2
openbsd-compat/base64.c	1
openbsd-compat/freezero.c	1
cipher.c	14
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-mt.c	11
cipher-chachapoly-libcrypto.c	4
cipher-ctr-mt.c	7
openbsd-compat/timingsafe_bcmp.c	1
poly1305.c	1
ssh-ecdsa.c	1
ssherr.c	1
ssh_api.c	11
entropy.c	1
openbsd-compat/openssl-compat.c	2
packet.c	51
kex.c	23
mac.c	6
umac.c	27
./umac.c	27
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
openbsd-compat/fmt_scaled.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
kex_gen_client	/src/hpn-ssh/kexgen.c	1	['N/A']	27	0	141	25	5	856	0	3384	1413
sshkey_check_revoked	/src/hpn-ssh/authfile.c	2	['N/A', 'N/A']	20	0	58	9	2	182	0	1417	637
ssh_xmss_sign	/src/hpn-ssh/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	215	0	1141	339
xxxmain	/src/hpn-ssh/regress/misc/fuzz-harness/../../../ssh-agent.c	2	['int', 'N/A']	22	0	1057	187	46	514	0	2841	319
kexgex_server	/src/hpn-ssh/kexgexs.c	1	['N/A']	28	0	17	3	2	447	0	2306	173
ssh_sk_sign	/src/hpn-ssh/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/hpn-ssh/auth-options.c	1	['N/A']	7	0	108	19	9	74	0	503	124

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

Functions statically reachable by fuzzers

1171 / 1672

Cyclomatic complexity statically reachable by fuzzers

6951 / 10313

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.

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/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', 'sshbuf_free', 'sshkey_is_cert']

regress/misc/fuzz-harness/sshsigopt_fuzz.cc

Dictionary

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

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', 'recallocarray', 'sshbuf_set_parent', 'cert_new', 'sshkey_free_contents', 'sshkey_free', 'sshbuf_froms']

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', 'recallocarray', 'sshbuf_set_parent', 'sshbuf_fromb', 'cert_new', 'sshkey_free_contents', 'sshkey_free', 'sshkey_private_deserialize']

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', 'cipher_init', 'process_add_identity', 'private2_decrypt', 'sshkey_ssh_name', 'process_extension', 'sshkey_fingerprint', 'sshkey_parse_private_fileblob_type', 'fingerprint_b64']

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', 'sshbuf_fromb', 'hash_buffer', 'log_init', 'sshlog', 'sshsig_peek_hashalg', 'ssh_digest_memory', 'tohex', 'recallocarray', 'sshbuf_allocate']

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=['cipher_init', 'ssh_digest_bytes', 'ssh_packet_send2_wrapped', 'private2_decrypt', 'ssh_remote_ipaddr', 'ssh_packet_close_internal', 'sshkey_parse_private_fileblob_type', 'ssh_packet_next', 'choose_comp']

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%	['privkey_fuzz']
cipher_init	82	25	30.48%	['kex_fuzz', 'agent_fuzz']
cipher_crypt	50	6	12.0%	['kex_fuzz', 'agent_fuzz']
log_init	61	8	13.11%	['sshsig_fuzz', 'agent_fuzz', 'kex_fuzz']
strnvis	37	19	51.35%	['sshsig_fuzz', 'kex_fuzz', 'pubkey_fuzz', 'authopt_fuzz', 'agent_fuzz', 'privkey_fuzz', 'sig_fuzz']
process_sign_request2	131	37	28.24%	['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	56	43.75%	['sshsig_fuzz', 'agent_fuzz', 'sig_fuzz', 'kex_fuzz']
sshkey_fingerprint	38	17	44.73%	['agent_fuzz']
private2_decrypt	122	66	54.09%	['kex_fuzz', 'agent_fuzz']
kex_send_kexinit	31	17	54.83%	['kex_fuzz']
ssh_packet_send2_wrapped	130	55	42.30%	['kex_fuzz']
ssh_packet_send2	54	16	29.62%	['kex_fuzz']
ssh_packet_read_poll2	179	96	53.63%	['kex_fuzz']
ssh_packet_write_wait	40	8	20.0%	['kex_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/hpn-ssh/bitmap.c	[]	[]
/src/hpn-ssh/kexc25519.c	[]	[]
/src/hpn-ssh/openbsd-compat/port-net.c	[]	[]
/src/hpn-ssh/dh.c	[]	[]
/src/hpn-ssh/kexdh.c	[]	[]
/src/hpn-ssh/krl.c	[]	[]
/src/hpn-ssh/regress/misc/fuzz-harness/pubkey_fuzz.cc	['pubkey_fuzz']	['pubkey_fuzz']
/src/hpn-ssh/ed25519.c	[]	[]
/src/hpn-ssh/./libcrux_mlkem768_sha3.h	[]	[]
/src/hpn-ssh/ssherr.c	['sig_fuzz', 'agent_fuzz', 'sshsig_fuzz', 'kex_fuzz']	['agent_fuzz', 'sshsig_fuzz', 'kex_fuzz']
/src/hpn-ssh/kexsntrup761x25519.c	[]	[]
/usr/include/x86_64-linux-gnu/bits/uintn-identity.h	[]	[]
/src/hpn-ssh/xmss_commons.c	[]	[]
/src/hpn-ssh/openbsd-compat/bsd-closefrom.c	['agent_fuzz']	[]
/src/hpn-ssh/match.c	['authopt_fuzz', 'sig_fuzz', 'pubkey_fuzz', 'privkey_fuzz', 'agent_fuzz', 'sshsig_fuzz', 'kex_fuzz']	['sshsig_fuzz', 'kex_fuzz']
/src/hpn-ssh/poly1305.c	['agent_fuzz', 'kex_fuzz']	[]
/src/hpn-ssh/openbsd-compat/bsd-getentropy.c	['agent_fuzz', 'kex_fuzz']	['agent_fuzz', 'kex_fuzz']
/src/hpn-ssh/entropy.c	['kex_fuzz']	['kex_fuzz']
/src/hpn-ssh/regress/misc/sk-dummy/sk-dummy.c	[]	[]
/src/hpn-ssh/ssh-ecdsa-sk.c	[]	[]
/src/hpn-ssh/ssh-rsa.c	[]	[]
/src/hpn-ssh/addr.c	[]	[]
/src/hpn-ssh/regress/misc/fuzz-harness/authopt_fuzz.cc	['authopt_fuzz']	['authopt_fuzz']
/src/hpn-ssh/xmss_wots.c	[]	[]
/src/hpn-ssh/xmalloc.c	['authopt_fuzz', 'agent_fuzz', 'sshsig_fuzz', 'kex_fuzz']	['agent_fuzz', 'sshsig_fuzz', 'kex_fuzz']
/src/hpn-ssh/ssh-xmss.c	[]	[]
/src/hpn-ssh/xmss_hash_address.c	[]	[]
/src/hpn-ssh/canohost.c	['kex_fuzz']	[]
/src/hpn-ssh/regress/misc/fuzz-harness/sshsig_fuzz.cc	['sshsig_fuzz']	['sshsig_fuzz']
/src/hpn-ssh/packet.c	['kex_fuzz']	['kex_fuzz']
/src/hpn-ssh/sshkey.c	['sig_fuzz', 'pubkey_fuzz', 'privkey_fuzz', 'agent_fuzz', 'sshsig_fuzz', 'kex_fuzz']	['sig_fuzz', 'pubkey_fuzz', 'privkey_fuzz', 'agent_fuzz', 'sshsig_fuzz', 'kex_fuzz']
/src/hpn-ssh/sshkey-xmss.c	['agent_fuzz']	[]
/src/hpn-ssh/ssh-sk.c	['agent_fuzz']	[]
/src/hpn-ssh/kexgexs.c	[]	[]
/src/hpn-ssh/kex-names.c	['kex_fuzz']	['kex_fuzz']
/src/hpn-ssh/openbsd-compat/./arc4random.h	['agent_fuzz', 'kex_fuzz']	[]
/src/hpn-ssh/openbsd-compat/fmt_scaled.c	['kex_fuzz']	[]
/src/hpn-ssh/openbsd-compat/bsd-getpeereid.c	[]	[]
/src/hpn-ssh/platform-misc.c	[]	[]
/src/hpn-ssh/smult_curve25519_ref.c	[]	[]
/src/hpn-ssh/ssh-ed25519.c	[]	[]
/src/hpn-ssh/sshsig.c	['sshsigopt_fuzz', 'sshsig_fuzz']	['sshsigopt_fuzz', 'sshsig_fuzz']
/src/hpn-ssh/openbsd-compat/openssl-compat.c	['kex_fuzz']	['kex_fuzz']
/src/hpn-ssh/xmss_fast.c	[]	[]
/src/hpn-ssh/atomicio.c	[]	[]
/src/hpn-ssh/mac.c	['kex_fuzz']	['kex_fuzz']
/src/hpn-ssh/readpass.c	['agent_fuzz']	['agent_fuzz']
/src/hpn-ssh/hmac.c	['kex_fuzz']	['kex_fuzz']
/src/hpn-ssh/kexgexc.c	[]	[]
/src/hpn-ssh/sntrup761.c	[]	[]
/src/hpn-ssh/regress/misc/fuzz-harness/sig_fuzz.cc	['sig_fuzz']	['sig_fuzz']
/src/hpn-ssh/cipher-chachapoly-libcrypto.c	['agent_fuzz', 'kex_fuzz']	[]
/src/hpn-ssh/kexmlkem768x25519.c	[]	[]
/src/hpn-ssh/cipher.c	['agent_fuzz', 'kex_fuzz']	['agent_fuzz', 'kex_fuzz']
/src/hpn-ssh/openbsd-compat/libressl-api-compat.c	[]	[]
/src/hpn-ssh/cipher-chachapoly-libcrypto-mt.c	['agent_fuzz', 'kex_fuzz']	[]
/src/hpn-ssh/cleanup.c	['authopt_fuzz', 'sshsig_fuzz', 'kex_fuzz']	[]
/src/hpn-ssh/openbsd-compat/arc4random_uniform.c	[]	[]
/src/hpn-ssh/openbsd-compat/readpassphrase.c	['agent_fuzz']	[]
/src/hpn-ssh/regress/misc/fuzz-harness/ssh-sk-null.cc	[]	[]
/src/hpn-ssh/kexgen.c	[]	[]
/src/hpn-ssh/regress/misc/fuzz-harness/sshsigopt_fuzz.cc	['sshsigopt_fuzz']	['sshsigopt_fuzz']
/src/hpn-ssh/openbsd-compat/recallocarray.c	['authopt_fuzz', 'pubkey_fuzz', 'privkey_fuzz', 'agent_fuzz', 'sshsig_fuzz', 'kex_fuzz']	['authopt_fuzz', 'pubkey_fuzz', 'privkey_fuzz', 'agent_fuzz', 'sshsig_fuzz', 'kex_fuzz']
/src/hpn-ssh/openbsd-compat/strtonum.c	['authopt_fuzz']	['authopt_fuzz']
/src/hpn-ssh/openbsd-compat/./chacha_private.h	['agent_fuzz', 'kex_fuzz']	[]
/src/hpn-ssh/addrmatch.c	[]	[]
/src/hpn-ssh/openbsd-compat/base64.c	['agent_fuzz', 'kex_fuzz']	['agent_fuzz', 'kex_fuzz']
/src/hpn-ssh/auth-options.c	['authopt_fuzz']	['authopt_fuzz']
/src/hpn-ssh/regress/misc/fuzz-harness/kex_fuzz.cc	['kex_fuzz']	['kex_fuzz']
/src/hpn-ssh/umac.c	['kex_fuzz']	[]
/src/hpn-ssh/kexgex.c	[]	[]
/src/hpn-ssh/platform-tracing.c	[]	[]
/src/hpn-ssh/regress/misc/fuzz-harness/agent_fuzz_helper.c	['agent_fuzz']	['agent_fuzz']
/src/hpn-ssh/xmss_hash.c	[]	[]
/src/hpn-ssh/openbsd-compat/blowfish.c	['agent_fuzz', 'kex_fuzz']	['agent_fuzz']
/src/hpn-ssh/openbsd-compat/vis.c	['authopt_fuzz', 'sig_fuzz', 'pubkey_fuzz', 'privkey_fuzz', 'agent_fuzz', 'sshsig_fuzz', 'kex_fuzz']	['agent_fuzz', 'kex_fuzz']
/src/hpn-ssh/compat.c	['kex_fuzz']	['kex_fuzz']
/src/hpn-ssh/hash.c	['agent_fuzz', 'kex_fuzz']	['agent_fuzz']
/src/hpn-ssh/openbsd-compat/freezero.c	['authopt_fuzz', 'sig_fuzz', 'pubkey_fuzz', 'privkey_fuzz', 'agent_fuzz', 'sshsig_fuzz', 'kex_fuzz']	['authopt_fuzz', 'sig_fuzz', 'pubkey_fuzz', 'privkey_fuzz', 'agent_fuzz', 'sshsig_fuzz', 'kex_fuzz']
/src/hpn-ssh/sshbuf-getput-crypto.c	[]	[]
/src/hpn-ssh/regress/misc/fuzz-harness/privkey_fuzz.cc	['privkey_fuzz']	['privkey_fuzz']
/src/hpn-ssh/misc.c	['authopt_fuzz', 'sig_fuzz', 'sshsigopt_fuzz', 'pubkey_fuzz', 'privkey_fuzz', 'agent_fuzz', 'sshsig_fuzz', 'kex_fuzz']	['authopt_fuzz', 'sshsigopt_fuzz', 'agent_fuzz', 'sshsig_fuzz']
/src/hpn-ssh/sshbuf-misc.c	['agent_fuzz', 'sshsig_fuzz', 'kex_fuzz']	['agent_fuzz', 'sshsig_fuzz', 'kex_fuzz']
/src/hpn-ssh/openbsd-compat/arc4random.c	['agent_fuzz', 'kex_fuzz']	['agent_fuzz', 'kex_fuzz']
/src/hpn-ssh/sshbuf-io.c	[]	[]
/src/hpn-ssh/digest-openssl.c	['agent_fuzz', 'sshsig_fuzz', 'kex_fuzz']	['agent_fuzz', 'sshsig_fuzz', 'kex_fuzz']
/src/hpn-ssh/openbsd-compat/strlcat.c	['agent_fuzz', 'sshsig_fuzz', 'kex_fuzz']	['agent_fuzz', 'sshsig_fuzz', 'kex_fuzz']
/src/hpn-ssh/utf8.c	[]	[]
/src/hpn-ssh/kex.c	['kex_fuzz']	['kex_fuzz']
/src/hpn-ssh/openbsd-compat/bsd-misc.c	[]	[]
/src/hpn-ssh/ssh-ecdsa.c	['agent_fuzz', 'kex_fuzz']	['agent_fuzz', 'kex_fuzz']
/src/hpn-ssh/sshbuf.c	['sig_fuzz', 'pubkey_fuzz', 'privkey_fuzz', 'agent_fuzz', 'sshsig_fuzz', 'kex_fuzz']	['sig_fuzz', 'pubkey_fuzz', 'privkey_fuzz', 'agent_fuzz', 'sshsig_fuzz', 'kex_fuzz']
/src/hpn-ssh/regress/misc/fuzz-harness/agent_fuzz.cc	['agent_fuzz']	['agent_fuzz']
/src/hpn-ssh/openbsd-compat/getopt_long.c	[]	[]
/src/hpn-ssh/ssh_api.c	['kex_fuzz']	['kex_fuzz']
/src/hpn-ssh/fatal.c	['authopt_fuzz', 'agent_fuzz', 'sshsig_fuzz', 'kex_fuzz']	[]
/src/hpn-ssh/log.c	['authopt_fuzz', 'sig_fuzz', 'pubkey_fuzz', 'privkey_fuzz', 'agent_fuzz', 'sshsig_fuzz', 'kex_fuzz']	['sig_fuzz', 'pubkey_fuzz', 'privkey_fuzz', 'agent_fuzz', 'sshsig_fuzz', 'kex_fuzz']
/src/hpn-ssh/openbsd-compat/bcrypt_pbkdf.c	['agent_fuzz', 'kex_fuzz']	['agent_fuzz']
/src/hpn-ssh/./umac.c	['kex_fuzz']	[]
/src/hpn-ssh/cipher-ctr-mt.c	['agent_fuzz', 'kex_fuzz']	[]
/src/hpn-ssh/ssh-pkcs11.c	['agent_fuzz']	[]
/src/hpn-ssh/kexecdh.c	[]	[]
/src/hpn-ssh/openbsd-compat/strlcpy.c	['authopt_fuzz', 'sig_fuzz', 'pubkey_fuzz', 'privkey_fuzz', 'agent_fuzz', 'sshsig_fuzz', 'kex_fuzz']	['agent_fuzz', 'kex_fuzz']
/src/hpn-ssh/openbsd-compat/timingsafe_bcmp.c	['agent_fuzz', 'sshsig_fuzz', 'kex_fuzz']	['agent_fuzz', 'sshsig_fuzz']
/src/hpn-ssh/authfile.c	[]	[]
/src/hpn-ssh/regress/misc/fuzz-harness/../../../ssh-agent.c	['agent_fuzz']	[]
/src/hpn-ssh/dispatch.c	['kex_fuzz']	['kex_fuzz']
/src/hpn-ssh/platform-pledge.c	[]	[]
/src/hpn-ssh/ssh-ed25519-sk.c	[]	[]
/src/hpn-ssh/sshbuf-getput-basic.c	['pubkey_fuzz', 'privkey_fuzz', 'agent_fuzz', 'sshsig_fuzz', 'kex_fuzz']	['pubkey_fuzz', 'privkey_fuzz', 'agent_fuzz', 'sshsig_fuzz', 'kex_fuzz']

Directories in report

Directory
/src/hpn-ssh/regress/misc/fuzz-harness/../../../
/usr/include/x86_64-linux-gnu/bits/
/src/hpn-ssh/openbsd-compat/
/src/hpn-ssh/regress/misc/sk-dummy/
/src/hpn-ssh/openbsd-compat/./
/src/hpn-ssh/./
/src/hpn-ssh/
/src/hpn-ssh/regress/misc/fuzz-harness/