High level conclusions

Fuzzers reach 51.80% code coverage.

Fuzzers reach 55.52% of cyclomatic complexity.

Fuzzers reach 53.25% of all functions.

Fuzzer ssh_bind_config_fuzzer is blocked:

The runtime code coverage of ssh_bind_config_fuzzer covers 16.43% of its statically reachable code. This means there is some place that blocks the fuzzer to continue exploring more code at run time.

Fuzzer ssh_sshsig_fuzzer_nalloc is blocked:

The runtime code coverage of ssh_sshsig_fuzzer_nalloc covers 29.76% of its statically reachable code. This means there is some place that blocks the fuzzer to continue exploring more code at run time.

Fuzzer ssh_privkey_fuzzer_nalloc is blocked:

The runtime code coverage of ssh_privkey_fuzzer_nalloc covers 9.032% 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

842 / 1581

Cyclomatic complexity statically reachable by fuzzers

6020 / 10842

Runtime code coverage of functions

819 / 1581

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: ssh_known_hosts_fuzzer_nalloc

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	109	25.4%
gold	[1:9]	17	3.97%
yellow	[10:29]	6	1.40%
greenyellow	[30:49]	4	0.93%
lawngreen	50+	292	68.2%
All colors	428	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
18	17	_ssh_log	call site: 00017	ssh_vlog
13	235	ssh_buffer_unpack_va	call site: 00235	_ssh_log
11	216	ssh_buffer_unpack_va	call site: 00216	ssh_buffer_get_ssh_string
8	36	ssh_strict_fopen	call site: 00036	_ssh_log
7	369	ssh_key_cmp	call site: 00369	ssh_string_cmp
6	120	hmac_init	call site: 00120	EVP_sha256
4	260	pki_pubkey_build_rsa	call site: 00260	BN_clear_free
3	249	ssh_buffer_unpack_va	call site: 00249	strlen
3	316	pki_pubkey_build_ed25519	call site: 00316	_ssh_log
2	12	ssh_strict_fopen	call site: 00012	ssh_strerror
2	83	ssh_buffer_new	call site: 00083	buffer_shift
2	312	pki_pubkey_build_ed25519	call site: 00312	_ssh_log

Runtime coverage analysis

Covered functions

101

Functions that are reachable but not covered

90

Reachable functions

177

Percentage of reachable functions covered

49.15%

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
tests/fuzz/ssh_known_hosts_fuzzer.c	1
tests/fuzz/nallocinc.c	7
src/knownhosts.c	7
src/misc.c	9
src/log.c	9
src/base64.c	4
src/buffer.c	19
src/libcrypto.c	4
src/match.c	3
src/pki.c	11
src/string.c	8
src/bignum.c	1
src/pki_crypto.c	6
src/init.c	2
src/threads/pthread.c	2
src/dh.c	1
src/socket.c	1
src/poll.c	1
src/threads.c	1
src/threads/libcrypto.c	1

Fuzzer: ssh_privkey_fuzzer_nalloc

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	493	94.9%
gold	[1:9]	4	0.77%
yellow	[10:29]	1	0.19%
greenyellow	[30:49]	0	0.0%
lawngreen	50+	21	4.04%
All colors	519	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
429	58	realloc	call site: 00058	ssh_pki_import_pubkey_blob
19	498	pki_private_key_from_base64	call site: 00498	ssh_key_free
18	8	_ssh_log	call site: 00008	ssh_vlog
14	27	ssh_pki_import_privkey_base64	call site: 00027	ssh_pki_openssh_privkey_import
6	49	calloc	call site: 00049	ssh_buffer_allocate_size
3	489	pki_private_key_from_base64	call site: 00489	pem_get_password
2	46	nalloc_fail	call site: 00046	fprintf
1	56	realloc	call site: 00056	__errno_location
1	493	pki_private_key_from_base64	call site: 00493	PEM_read_bio_PrivateKey

Runtime coverage analysis

Covered functions

32

Functions that are reachable but not covered

141

Reachable functions

155

Percentage of reachable functions covered

9.03%

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
tests/fuzz/ssh_privkey_fuzzer.c	1
tests/fuzz/nallocinc.c	7
src/base64.c	6
src/pki.c	11
src/log.c	9
src/pki_container_openssh.c	4
src/buffer.c	19
src/string.c	7
src/bignum.c	1
src/pki_crypto.c	12
src/libcrypto.c	1
src/external/bcrypt_pbkdf.c	2
src/md_crypto.c	3
src/external/blowfish.c	6
src/wrapper.c	1

Fuzzer: ssh_sshsig_fuzzer_nalloc

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	373	66.8%
gold	[1:9]	31	5.55%
yellow	[10:29]	29	5.19%
greenyellow	[30:49]	4	0.71%
lawngreen	50+	121	21.6%
All colors	558	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
247	300	sshsig_verify	call site: 00300	ssh_pki_import_signature_blob
23	221	pki_import_pubkey_buffer	call site: 00221	pki_pubkey_build_ecdsa
18	7	_ssh_log	call site: 00007	ssh_vlog
18	173	ssh_pki_import_pubkey_blob	call site: 00173	pki_import_cert_buffer
18	270	pki_key_clean	call site: 00270	pki_import_pubkey_buffer
6	126	ssh_buffer_unpack_va	call site: 00126	_ssh_log
4	100	ssh_buffer_unpack_va	call site: 00100	ssh_buffer_get_ssh_string
4	202	pki_pubkey_build_rsa	call site: 00202	BN_clear_free
4	262	pki_import_pubkey_buffer	call site: 00262	_ssh_log
3	257	pki_pubkey_build_ed25519	call site: 00257	_ssh_log
2	53	ssh_buffer_new	call site: 00053	buffer_shift
2	74	base64_to_bin	call site: 00074	ssh_buffer_add_data

Runtime coverage analysis

Covered functions

68

Functions that are reachable but not covered

118

Reachable functions

168

Percentage of reachable functions covered

29.76%

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
tests/fuzz/ssh_sshsig_fuzzer.c	1
tests/fuzz/nallocinc.c	7
src/pki.c	21
src/log.c	9
src/base64.c	4
src/buffer.c	27
src/string.c	9
src/bignum.c	4
src/pki_crypto.c	11
src/md_crypto.c	8
src/pki_ed25519_common.c	1

Fuzzer: ssh_client_config_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	321	35.0%
gold	[1:9]	89	9.72%
yellow	[10:29]	40	4.37%
greenyellow	[30:49]	56	6.12%
lawngreen	50+	409	44.6%
All colors	915	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	92	_ssh_log	call site: 00092	_ssh_log
16	310	ssh_options_set	call site: 00310	_ssh_set_error_invalid
15	122	crypto_free	call site: 00122	ssh_key_clean
15	458	ssh_options_set	call site: 00458	ssh_path_expand_tilde
14	169	ssh_free	call site: 00169	ssh_message_free
14	874	ssh_config_parse_line_internal	call site: 00874	ssh_options_set
13	641	ssh_config_parse_line_internal	call site: 00641	ssh_match_localnetwork
11	78	ssh_socket_close	call site: 00078	ssh_poll_free
11	629	match_cidr_address_list	call site: 00629	_ssh_log
8	61	ssh_free	call site: 00061	ssh_channel_do_free
7	444	ssh_options_set	call site: 00444	_ssh_set_error_invalid
7	608	get_address_family	call site: 00608	_ssh_log

Runtime coverage analysis

Covered functions

122

Functions that are reachable but not covered

219

Reachable functions

323

Percentage of reachable functions covered

32.2%

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
tests/fuzz/ssh_client_config_fuzzer.c	1
tests/fuzz/nallocinc.c	7
src/session.c	3
src/wrapper.c	4
src/socket.c	4
src/error.c	3
src/buffer.c	5
src/misc.c	26
src/agent.c	3
src/pki_context.c	3
src/channels.c	1
src/pcap.c	1
src/poll.c	5
src/log.c	12
src/pki.c	2
src/pki_crypto.c	1
src/string.c	4
src/dh_crypto.c	1
src/gzip.c	1
src/messages.c	1
src/auth.c	2
src/callbacks.c	1
src/options.c	3
src/config_parser.c	6
src/kex.c	6
src/token.c	7
src/config.c	14
src/match.c	8
src/md_crypto.c	4

Fuzzer: ssh_pubkey_fuzzer_nalloc

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	434	66.9%
gold	[1:9]	47	7.25%
yellow	[10:29]	18	2.77%
greenyellow	[30:49]	27	4.16%
lawngreen	50+	122	18.8%
All colors	648	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
205	310	pki_import_cert_buffer	call site: 00310	pki_openssh_import_privkey_blob
104	529	pki_private_key_from_base64	call site: 00529	ssh_pki_export_privkey_to_pubkey
23	243	pki_import_pubkey_buffer	call site: 00243	pki_pubkey_build_ecdsa
18	27	_ssh_log	call site: 00027	ssh_vlog
12	162	ssh_pki_openssh_import	call site: 00162	ssh_pki_import_pubkey_blob
9	219	pki_pubkey_build_rsa	call site: 00219	ssh_make_string_bn
6	47	ssh_pki_import_pubkey_file	call site: 00047	_ssh_log
4	120	ssh_buffer_unpack_va	call site: 00120	ssh_buffer_get_ssh_string
4	148	ssh_buffer_unpack_va	call site: 00148	_ssh_log
4	520	pki_private_key_from_base64	call site: 00520	pem_get_password
3	57	ssh_pki_import_pubkey_file	call site: 00057	_ssh_log
3	135	ssh_string_len	call site: 00135	ssh_string_burn

Runtime coverage analysis

Covered functions

74

Functions that are reachable but not covered

123

Reachable functions

179

Percentage of reachable functions covered

31.28%

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
tests/fuzz/ssh_pubkey_fuzzer.c	1
src/misc.c	2
tests/fuzz/nallocinc.c	8
src/pki.c	15
src/log.c	9
src/pki_container_openssh.c	4
src/base64.c	4
src/buffer.c	19
src/string.c	8
src/bignum.c	1
src/pki_crypto.c	13
src/libcrypto.c	1
src/external/bcrypt_pbkdf.c	2
src/md_crypto.c	3
src/external/blowfish.c	6
src/wrapper.c	1

Fuzzer: ssh_sftp_attr_fuzzer_nalloc

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	137	39.7%
gold	[1:9]	0	0.0%
yellow	[10:29]	8	2.31%
greenyellow	[30:49]	7	2.02%
lawngreen	50+	193	55.9%
All colors	345	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	91	_ssh_log	call site: 00091	_ssh_log
14	168	ssh_free	call site: 00168	ssh_message_free
13	77	ssh_socket_close	call site: 00077	ssh_poll_free
13	301	ssh_buffer_unpack_va	call site: 00301	_ssh_log
8	60	ssh_free	call site: 00060	ssh_channel_do_free
8	128	ssh_string_len	call site: 00128	ssh_string_burn
7	289	ssh_buffer_unpack_va	call site: 00289	ssh_buffer_get_ssh_string
6	121	crypto_free	call site: 00121	ssh_key_clean
6	316	sftp_parse_attr_3	call site: 00316	sftp_parse_longname
4	145	crypto_free	call site: 00145	deflateEnd
4	281	ssh_buffer_unpack_va	call site: 00281	ssh_buffer_get_u8
2	22	ssh_buffer_new	call site: 00022	buffer_shift

Runtime coverage analysis

Covered functions

86

Functions that are reachable but not covered

58

Reachable functions

126

Percentage of reachable functions covered

53.97%

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
tests/fuzz/ssh_sftp_attr_fuzzer.c	2
tests/fuzz/nallocinc.c	7
src/session.c	3
src/wrapper.c	4
src/socket.c	4
src/error.c	2
src/buffer.c	16
src/misc.c	10
src/agent.c	3
src/pki_context.c	2
src/channels.c	1
src/pcap.c	1
src/poll.c	5
src/log.c	11
src/pki.c	2
src/pki_crypto.c	1
src/string.c	7
src/dh_crypto.c	1
src/gzip.c	1
src/messages.c	1
src/auth.c	2
src/callbacks.c	1
src/sftp_common.c	5
src/bignum.c	1
src/client.c	1
src/sftp.c	1

Fuzzer: ssh_bind_config_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	619	74.6%
gold	[1:9]	32	3.86%
yellow	[10:29]	17	2.05%
greenyellow	[30:49]	10	1.20%
lawngreen	50+	151	18.2%
All colors	829	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
429	120	realloc	call site: 00120	ssh_pki_import_pubkey_blob
35	601	ssh_pki_import_privkey_file	call site: 00601	ssh_bind_key_size_allowed
20	97	ssh_pki_import_privkey_base64	call site: 00097	ssh_pki_openssh_privkey_import
20	730	ssh_bind_options_set	call site: 00730	ssh_path_expand_tilde
19	560	pki_private_key_from_base64	call site: 00560	ssh_key_free
10	637	ssh_bind_options_set	call site: 00637	_ssh_log
9	586	ssh_pki_import_privkey_file	call site: 00586	_ssh_log
6	7	calloc	call site: 00007	nalloc_backtrace_exclude
6	753	ssh_bind_options_set	call site: 00753	_ssh_set_error_invalid
4	75	ssh_strict_fopen	call site: 00075	_ssh_log
3	21	ssh_log_function	call site: 00021	ssh_log_custom
3	84	ssh_strict_fopen	call site: 00084	_ssh_log

Runtime coverage analysis

Covered functions

65

Functions that are reachable but not covered

239

Reachable functions

286

Percentage of reachable functions covered

16.43%

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
tests/fuzz/ssh_bind_config_fuzzer.c	1
tests/fuzz/nallocinc.c	7
src/bind.c	2
src/bind_config.c	6
src/log.c	10
src/error.c	3
src/config_parser.c	3
src/misc.c	5
src/options.c	5
src/pki.c	14
src/pki_container_openssh.c	4
src/base64.c	4
src/buffer.c	19
src/string.c	7
src/bignum.c	1
src/pki_crypto.c	14
src/libcrypto.c	1
src/external/bcrypt_pbkdf.c	2
src/md_crypto.c	3
src/external/blowfish.c	6
src/wrapper.c	1
src/kex.c	6
src/token.c	7

Fuzzer: ssh_server_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	2137	71.0%
gold	[1:9]	25	0.83%
yellow	[10:29]	24	0.79%
greenyellow	[30:49]	15	0.49%
lawngreen	50+	805	26.7%
All colors	3006	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
522	2367	libcrux_ml_kem_vector_portable_vector_type_zero	call site: 02367	libcrux_ml_kem_ind_cpa_generate_keypair_unpacked_1c
215	1371	ssh_list_prepend	call site: 01371	ssh_known_hosts_read_entries
182	1590	ssh_strict_fopen	call site: 01590	ssh_send_kex
168	491	sha512_final	call site: 00491	pki_openssh_import_privkey_blob
85	1285	ssh_packet_send	call site: 01285	ssh_send_rekex
61	2917	libcrux_ml_kem_ind_cpa_serialize_public_key_mut_89	call site: 02917	ssh_packet_send
38	1152	ssh_buffer_pack_va	call site: 01152	_ssh_buffer_pack
32	840	ssh_bind_options_set	call site: 00840	ssh_bind_set_algo
31	1044	pki_key_dup	call site: 01044	ssh_key_free
29	796	ssh_find_all_matching	call site: 00796	ssh_prefix_default_algos
25	457	ssh_pki_import_pubkey_blob	call site: 00457	pki_private_key_decrypt
25	1800	packet_send2	call site: 01800	compress_buffer

Runtime coverage analysis

Covered functions

442

Functions that are reachable but not covered

528

Reachable functions

798

Percentage of reachable functions covered

33.83%

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
tests/fuzz/ssh_server_fuzzer.c	2
tests/fuzz/nallocinc.c	11
src/bind.c	4
src/session.c	7
src/wrapper.c	10
src/socket.c	16
src/error.c	3
src/buffer.c	31
src/misc.c	33
src/agent.c	3
src/pki_context.c	3
src/channels.c	1
src/pcap.c	5
src/poll.c	21
src/log.c	12
src/pki.c	22
src/pki_crypto.c	18
src/string.c	11
src/dh_crypto.c	6
src/gzip.c	4
src/messages.c	1
src/auth.c	2
src/callbacks.c	2
src/options.c	8
src/pki_container_openssh.c	4
src/base64.c	4
src/bignum.c	4
src/libcrypto.c	7
src/external/bcrypt_pbkdf.c	2
src/md_crypto.c	20
src/external/blowfish.c	6
src/kex.c	19
src/token.c	7
src/server.c	4
src/client.c	3
src/getrandom_crypto.c	1
src/packet.c	10
src/knownhosts.c	11
src/config_parser.c	1
src/config.c	1
src/match.c	3
src/packet_crypt.c	1
src/dh.c	3
src/kdf.c	5
src/dh-gex.c	1
src/ecdh_crypto.c	4
src/curve25519.c	1
src/curve25519_crypto.c	1
src/sntrup761.c	3
src/external/sntrup761.c	24
src/hybrid_mlkem.c	1
src/mlkem_native.c	1
src/mlkem.c	1
src/external/libcrux_mlkem768_sha3.c	256

Fuzzer: ssh_client_fuzzer_nalloc

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	2764	66.4%
gold	[1:9]	77	1.85%
yellow	[10:29]	49	1.17%
greenyellow	[30:49]	117	2.81%
lawngreen	50+	1153	27.7%
All colors	4160	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
404	3092	ssh_pki_import_pubkey_blob	call site: 03092	ssh_userauth_try_publickey
250	3520	ssh_key_size_allowed_rsa	call site: 03520	ssh_userauth_agent_publickey
248	3792	ssh_signature_free	call site: 03792	ssh_event_add_connector
202	757	ssh_lowercase	call site: 00757	ssh_config_parse
151	604	ssh_strict_fopen	call site: 00604	ssh_config_parse
96	1464	pki_import_cert_buffer	call site: 01464	ssh_userauth_publickey_auto
85	422	ssh_options_set	call site: 00422	ssh_options_set
83	1062	ssh_connect	call site: 01062	ssh_socket_connect_proxyjump
77	4067	ssh_disconnect	call site: 04067	select_loop
74	2996	ssh_client_hybrid_mlkem_init	call site: 02996	atomicio
52	1796	packet_send2	call site: 01796	ssh_pcap_context_write
48	1242	ssh_buffer_add_data	call site: 01242	base64_to_bin

Runtime coverage analysis

Covered functions

593

Functions that are reachable but not covered

455

Reachable functions

975

Percentage of reachable functions covered

53.33%

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
tests/fuzz/ssh_client_fuzzer.c	2
tests/fuzz/nallocinc.c	11
src/session.c	9
src/wrapper.c	10
src/socket.c	24
src/error.c	4
src/buffer.c	31
src/misc.c	33
src/agent.c	11
src/pki_context.c	3
src/channels.c	31
src/pcap.c	5
src/poll.c	26
src/log.c	13
src/pki.c	43
src/pki_crypto.c	22
src/string.c	12
src/dh_crypto.c	6
src/gzip.c	4
src/messages.c	1
src/auth.c	13
src/callbacks.c	6
src/options.c	5
src/config_parser.c	6
src/kex.c	19
src/token.c	7
src/config.c	15
src/client.c	7
src/init.c	1
src/threads/pthread.c	2
src/md_crypto.c	20
src/match.c	9
src/threads.c	1
src/connect.c	4
src/knownhosts.c	15
src/dh.c	4
src/base64.c	6
src/libcrypto.c	6
src/bignum.c	4
src/packet.c	10
src/getrandom_crypto.c	1
src/server.c	1
src/packet_crypt.c	1
src/kdf.c	5
src/dh-gex.c	1
src/ecdh_crypto.c	4
src/curve25519.c	1
src/curve25519_crypto.c	1
src/sntrup761.c	3
src/external/sntrup761.c	24
src/hybrid_mlkem.c	1
src/mlkem_native.c	1
src/mlkem.c	1
src/external/libcrux_mlkem768_sha3.c	256
src/pki_container_openssh.c	5
src/external/bcrypt_pbkdf.c	2
src/external/blowfish.c	6
src/pki_ed25519_common.c	1
src/connector.c	18

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
ssh_packet_client_hybrid_mlkem_reply	/src/libssh/src/hybrid_mlkem.c	4	['N/A', 'char', 'N/A', 'N/A']	28	0	394	40	17	829	0	3625	400
ssh_packet_userauth_request	/src/libssh/src/messages.c	4	['N/A', 'char', 'N/A', 'N/A']	34	0	898	187	54	733	0	3808	295
ssh_packet_socket_callback	/src/libssh/src/packet.c	3	['N/A', 'size_t', 'N/A']	26	0	992	133	47	689	1	3456	244
sftp_init	/src/libssh/src/sftp.c	1	['N/A']	29	0	512	83	26	739	0	3630	169
ssh_server_connection_callback	/src/libssh/src/server.c	1	['N/A']	28	0	491	85	25	699	0	3400	168
ssh_channel_request_pty	/src/libssh/src/channels.c	1	['N/A']	30	0	15	3	2	713	0	3520	163
process_readdir	/src/libssh/src/sftpserver.c	1	['N/A']	26	0	236	34	13	723	0	3534	124
ssh_packet_server_sntrup761x25519_init	/src/libssh/src/sntrup761.c	4	['N/A', 'char', 'N/A', 'N/A']	27	0	398	64	24	733	0	3615	122
ssh_packet_server_dhgex_request	/src/libssh/src/dh-gex.c	4	['N/A', 'char', 'N/A', 'N/A']	27	0	284	51	18	682	0	3299	97
ssh_pki_export_privkey_file	/src/libssh/src/pki.c	5	['N/A', 'N/A', 'N/A', 'N/A', 'N/A']	14	0	27	3	2	127	0	588	89

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

Functions statically reachable by fuzzers

1126 / 1581

Cyclomatic complexity statically reachable by fuzzers

7784 / 10842

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.

tests/fuzz/ssh_known_hosts_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=['_ssh_log', 'ssh_buffer_unpack_va', 'ssh_strict_fopen', 'ssh_key_cmp', 'hmac_init', 'pki_pubkey_build_rsa', 'pki_pubkey_build_ed25519']

tests/fuzz/ssh_privkey_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=['realloc', 'pki_private_key_from_base64', '_ssh_log', 'ssh_pki_import_privkey_base64', 'calloc', 'nalloc_fail']

tests/fuzz/ssh_sshsig_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=['sshsig_verify', 'pki_import_pubkey_buffer', '_ssh_log', 'ssh_pki_import_pubkey_blob', 'pki_key_clean', 'ssh_buffer_unpack_va', 'pki_pubkey_build_rsa', 'pki_pubkey_build_ed25519']

tests/fuzz/ssh_client_config_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=['_ssh_log', 'ssh_options_set', 'crypto_free', 'ssh_free', 'ssh_config_parse_line_internal', 'ssh_socket_close', 'match_cidr_address_list']

tests/fuzz/ssh_pubkey_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=['pki_import_cert_buffer', 'pki_private_key_from_base64', 'pki_import_pubkey_buffer', '_ssh_log', 'ssh_pki_openssh_import', 'pki_pubkey_build_rsa', 'ssh_pki_import_pubkey_file', 'ssh_buffer_unpack_va']

tests/fuzz/ssh_sftp_attr_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=['_ssh_log', 'ssh_free', 'ssh_socket_close', 'ssh_buffer_unpack_va', 'ssh_string_len', 'crypto_free', 'sftp_parse_attr_3']

tests/fuzz/ssh_bind_config_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=['realloc', 'ssh_pki_import_privkey_file', 'ssh_pki_import_privkey_base64', 'ssh_bind_options_set', 'pki_private_key_from_base64', 'calloc', 'ssh_strict_fopen']

tests/fuzz/ssh_server_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=['libcrux_ml_kem_vector_portable_vector_type_zero', 'ssh_list_prepend', 'ssh_strict_fopen', 'sha512_final', 'ssh_packet_send', 'libcrux_ml_kem_ind_cpa_serialize_public_key_mut_89', 'ssh_buffer_pack_va', 'ssh_bind_options_set', 'pki_key_dup', 'ssh_find_all_matching']

tests/fuzz/ssh_client_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=['ssh_pki_import_pubkey_blob', 'ssh_key_size_allowed_rsa', 'ssh_signature_free', 'ssh_lowercase', 'ssh_strict_fopen', 'pki_import_cert_buffer', 'ssh_options_set', 'ssh_connect', 'ssh_disconnect', 'ssh_client_hybrid_mlkem_init']

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
ssh_dh_init	36	19	52.77%	['ssh_bind_config_fuzzer', 'ssh_client_fuzzer_nalloc', 'ssh_known_hosts_fuzzer_nalloc', 'ssh_privkey_fuzzer_nalloc', 'ssh_client_config_fuzzer', 'ssh_server_fuzzer', 'ssh_pubkey_fuzzer_nalloc', 'ssh_sshsig_fuzzer_nalloc', 'ssh_sftp_attr_fuzzer_nalloc']
hmac_init	37	17	45.94%	['ssh_server_fuzzer', 'ssh_known_hosts_fuzzer_nalloc', 'ssh_client_fuzzer_nalloc']
ssh_key_cmp	50	17	34.0%	['ssh_server_fuzzer', 'ssh_known_hosts_fuzzer_nalloc', 'ssh_client_fuzzer_nalloc']
pki_pubkey_build_rsa	42	23	54.76%	['ssh_bind_config_fuzzer', 'ssh_client_fuzzer_nalloc', 'ssh_known_hosts_fuzzer_nalloc', 'ssh_privkey_fuzzer_nalloc', 'ssh_client_config_fuzzer', 'ssh_server_fuzzer', 'ssh_pubkey_fuzzer_nalloc', 'ssh_sshsig_fuzzer_nalloc']
pki_private_key_from_base64	77	40	51.94%	['ssh_bind_config_fuzzer', 'ssh_client_fuzzer_nalloc', 'ssh_privkey_fuzzer_nalloc', 'ssh_client_config_fuzzer', 'ssh_server_fuzzer', 'ssh_pubkey_fuzzer_nalloc']
ssh_config_make_absolute	41	19	46.34%	['ssh_client_config_fuzzer', 'ssh_bind_config_fuzzer', 'ssh_client_fuzzer_nalloc']
match_cidr_address_list	168	77	45.83%	['ssh_client_config_fuzzer', 'ssh_bind_config_fuzzer', 'ssh_client_fuzzer_nalloc']
ssh_options_set	717	386	53.83%	['ssh_client_config_fuzzer', 'ssh_server_fuzzer', 'ssh_bind_config_fuzzer', 'ssh_client_fuzzer_nalloc']
ssh_socket_close	33	15	45.45%	['ssh_client_config_fuzzer', 'ssh_sftp_attr_fuzzer_nalloc', 'ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']
ssh_pki_openssh_import	135	74	54.81%	['ssh_bind_config_fuzzer', 'ssh_client_fuzzer_nalloc', 'ssh_privkey_fuzzer_nalloc', 'ssh_client_config_fuzzer', 'ssh_server_fuzzer', 'ssh_pubkey_fuzzer_nalloc']
ssh_bind_options_set	361	172	47.64%	['ssh_client_config_fuzzer', 'ssh_server_fuzzer', 'ssh_bind_config_fuzzer']
ssh_pki_import_privkey_file	62	26	41.93%	['ssh_client_config_fuzzer', 'ssh_server_fuzzer', 'ssh_bind_config_fuzzer', 'ssh_client_fuzzer_nalloc']
ssh_bind_accept_fd	127	41	32.28%	['ssh_server_fuzzer']
ssh_channel_new	44	22	50.0%	['ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']
channel_default_bufferize	45	18	40.0%	['ssh_server_fuzzer']
ssh_curve25519_init	50	25	50.0%	['ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']
ssh_retrieve_dhgroup	52	16	30.76%	['ssh_server_fuzzer']
ssh_packet_server_hybrid_mlkem_init	255	102	40.0%	['ssh_server_fuzzer']
sshkdf_derive_key	73	25	34.24%	['ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']
ssh_mac_ctx_init	35	19	54.28%	['ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']
ssh_send_kex	89	48	53.93%	['ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']
ssh_hashbufout_add_cookie	31	17	54.83%	['ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']
ssh_message_queue	35	18	51.42%	['ssh_server_fuzzer']
ssh_execute_server_request	243	81	33.33%	['ssh_server_fuzzer']
ssh_msg_userauth_build_digest	53	28	52.83%	['ssh_server_fuzzer']
ssh_mlkem_encapsulate	57	20	35.08%	['ssh_server_fuzzer']
ssh_packet_send	62	24	38.70%	['ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']
ssh_packet_encrypt	90	37	41.11%	['ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']
pki_key_dup_common_init	43	15	34.88%	['ssh_server_fuzzer', 'ssh_pubkey_fuzzer_nalloc', 'ssh_client_fuzzer_nalloc']
ssh_key_signature_to_char	33	16	48.48%	['ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc', 'ssh_sshsig_fuzzer_nalloc']
ssh_pki_export_signature_blob	54	26	48.14%	['ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']
pki_key_dup	221	59	26.69%	['ssh_server_fuzzer', 'ssh_pubkey_fuzzer_nalloc', 'ssh_client_fuzzer_nalloc']
pki_key_to_blob	335	126	37.61%	['ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']
pki_sign_data	81	43	53.08%	['ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']
ssh_get_key_params	44	20	45.45%	['ssh_server_fuzzer']
ssh_auth_reply_default	51	13	25.49%	['ssh_server_fuzzer']
ssh_channel_free	38	5	13.15%	['ssh_client_fuzzer_nalloc']
ssh_connect	121	55	45.45%	['ssh_client_fuzzer_nalloc']
libcrux_sha3_generic_keccak_portable_keccak1_96	31	15	48.38%	['ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']
libcrux_sha3_generic_keccak_portable_keccak1_ad0	31	15	48.38%	['ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']
ssh_client_hybrid_mlkem_init	87	43	49.42%	['ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']
ssh_packet_client_hybrid_mlkem_reply	148	59	39.86%	['ssh_client_fuzzer_nalloc']
ssh_client_select_hostkeys	70	27	38.57%	['ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']
revert_kex_callbacks	45	4	8.888%	['ssh_client_fuzzer_nalloc']
ssh_known_hosts_get_algorithms_names	75	25	33.33%	['ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']
ssh_options_apply	121	53	43.80%	['ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']
ssh_packet_client_sntrup761x25519_reply	64	22	34.37%	['ssh_client_fuzzer_nalloc']

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/libssh/src/auth.c	['ssh_client_config_fuzzer', 'ssh_sftp_attr_fuzzer_nalloc', 'ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']	['ssh_client_config_fuzzer', 'ssh_sftp_attr_fuzzer_nalloc', 'ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']
/src/libssh/src/misc.c	['ssh_known_hosts_fuzzer_nalloc', 'ssh_client_config_fuzzer', 'ssh_pubkey_fuzzer_nalloc', 'ssh_sftp_attr_fuzzer_nalloc', 'ssh_bind_config_fuzzer', 'ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']	['ssh_known_hosts_fuzzer_nalloc', 'ssh_client_config_fuzzer', 'ssh_pubkey_fuzzer_nalloc', 'ssh_sftp_attr_fuzzer_nalloc', 'ssh_bind_config_fuzzer', 'ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']
/src/libssh/src/getrandom_crypto.c	['ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']	['ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']
/src/libssh/src/threads.c	['ssh_known_hosts_fuzzer_nalloc', 'ssh_client_fuzzer_nalloc']	['ssh_known_hosts_fuzzer_nalloc', 'ssh_client_fuzzer_nalloc']
/src/libssh/src/external/blowfish.c	['ssh_privkey_fuzzer_nalloc', 'ssh_pubkey_fuzzer_nalloc', 'ssh_bind_config_fuzzer', 'ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']	[]
/src/libssh/src/ttyopts.c	[]	[]
/src/libssh/tests/fuzz/ssh_pubkey_fuzzer.c	['ssh_pubkey_fuzzer_nalloc']	['ssh_pubkey_fuzzer_nalloc']
/src/libssh/src/client.c	['ssh_sftp_attr_fuzzer_nalloc', 'ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']	['ssh_sftp_attr_fuzzer_nalloc', 'ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']
/src/libssh/src/crypto_common.c	[]	[]
/src/libssh/src/mlkem.c	['ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']	['ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']
/src/libssh/src/pki_container_openssh.c	['ssh_privkey_fuzzer_nalloc', 'ssh_pubkey_fuzzer_nalloc', 'ssh_bind_config_fuzzer', 'ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']	['ssh_pubkey_fuzzer_nalloc']
/src/libssh/src/threads/pthread.c	['ssh_known_hosts_fuzzer_nalloc', 'ssh_client_fuzzer_nalloc']	['ssh_known_hosts_fuzzer_nalloc', 'ssh_client_fuzzer_nalloc']
/src/libssh/src/bignum.c	['ssh_known_hosts_fuzzer_nalloc', 'ssh_privkey_fuzzer_nalloc', 'ssh_sshsig_fuzzer_nalloc', 'ssh_pubkey_fuzzer_nalloc', 'ssh_sftp_attr_fuzzer_nalloc', 'ssh_bind_config_fuzzer', 'ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']	['ssh_known_hosts_fuzzer_nalloc', 'ssh_sshsig_fuzzer_nalloc', 'ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']
/src/libssh/src/packet_crypt.c	['ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']	['ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']
/src/libssh/src/libcrypto.c	['ssh_known_hosts_fuzzer_nalloc', 'ssh_privkey_fuzzer_nalloc', 'ssh_pubkey_fuzzer_nalloc', 'ssh_bind_config_fuzzer', 'ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']	['ssh_known_hosts_fuzzer_nalloc', 'ssh_privkey_fuzzer_nalloc', 'ssh_pubkey_fuzzer_nalloc', 'ssh_bind_config_fuzzer', 'ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']
/src/libssh/src/gzip.c	['ssh_client_config_fuzzer', 'ssh_sftp_attr_fuzzer_nalloc', 'ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']	['ssh_client_config_fuzzer', 'ssh_sftp_attr_fuzzer_nalloc', 'ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']
/src/libssh/src/kex.c	['ssh_client_config_fuzzer', 'ssh_bind_config_fuzzer', 'ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']	['ssh_client_config_fuzzer', 'ssh_bind_config_fuzzer', 'ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']
/src/libssh/src/bind_config.c	['ssh_bind_config_fuzzer']	['ssh_bind_config_fuzzer']
/src/libssh/src/knownhosts.c	['ssh_known_hosts_fuzzer_nalloc', 'ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']	['ssh_known_hosts_fuzzer_nalloc', 'ssh_client_fuzzer_nalloc']
/src/libssh/src/server.c	['ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']	['ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']
/src/libssh/src/token.c	['ssh_client_config_fuzzer', 'ssh_bind_config_fuzzer', 'ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']	['ssh_client_config_fuzzer', 'ssh_bind_config_fuzzer', 'ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']
/src/libssh/src/external/libcrux_mlkem768_sha3.c	['ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']	['ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']
/src/libssh/src/connect.c	['ssh_client_fuzzer_nalloc']	[]
/src/libssh/src/sftpserver.c	[]	[]
/src/libssh/src/dh_crypto.c	['ssh_client_config_fuzzer', 'ssh_sftp_attr_fuzzer_nalloc', 'ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']	['ssh_client_config_fuzzer', 'ssh_sftp_attr_fuzzer_nalloc', 'ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']
/src/libssh/src/pki_ed25519_common.c	['ssh_sshsig_fuzzer_nalloc', 'ssh_client_fuzzer_nalloc']	[]
/src/libssh/src/curve25519_crypto.c	['ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']	['ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']
/src/libssh/tests/fuzz/ssh_privkey_fuzzer.c	['ssh_privkey_fuzzer_nalloc']	['ssh_privkey_fuzzer_nalloc']
/src/libssh/src/ecdh_crypto.c	['ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']	['ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']
/src/libssh/src/mlkem_native.c	['ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']	['ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']
/src/libssh/include/libssh/sftp_priv.h	[]	[]
/src/libssh/src/buffer.c	['ssh_known_hosts_fuzzer_nalloc', 'ssh_privkey_fuzzer_nalloc', 'ssh_sshsig_fuzzer_nalloc', 'ssh_client_config_fuzzer', 'ssh_pubkey_fuzzer_nalloc', 'ssh_sftp_attr_fuzzer_nalloc', 'ssh_bind_config_fuzzer', 'ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']	['ssh_known_hosts_fuzzer_nalloc', 'ssh_sshsig_fuzzer_nalloc', 'ssh_client_config_fuzzer', 'ssh_pubkey_fuzzer_nalloc', 'ssh_sftp_attr_fuzzer_nalloc', 'ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']
/src/libssh/src/external/sntrup761.c	['ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']	['ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']
/src/libssh/tests/fuzz/ssh_sftp_attr_fuzzer.c	['ssh_sftp_attr_fuzzer_nalloc']	['ssh_sftp_attr_fuzzer_nalloc']
/src/libssh/src/socket.c	['ssh_known_hosts_fuzzer_nalloc', 'ssh_client_config_fuzzer', 'ssh_sftp_attr_fuzzer_nalloc', 'ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']	['ssh_known_hosts_fuzzer_nalloc', 'ssh_client_config_fuzzer', 'ssh_sftp_attr_fuzzer_nalloc', 'ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']
/src/libssh/src/pki_crypto.c	['ssh_known_hosts_fuzzer_nalloc', 'ssh_privkey_fuzzer_nalloc', 'ssh_sshsig_fuzzer_nalloc', 'ssh_client_config_fuzzer', 'ssh_pubkey_fuzzer_nalloc', 'ssh_sftp_attr_fuzzer_nalloc', 'ssh_bind_config_fuzzer', 'ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']	['ssh_known_hosts_fuzzer_nalloc', 'ssh_privkey_fuzzer_nalloc', 'ssh_sshsig_fuzzer_nalloc', 'ssh_pubkey_fuzzer_nalloc', 'ssh_bind_config_fuzzer', 'ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']
/src/libssh/src/packet.c	['ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']	['ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']
/src/libssh/src/options.c	['ssh_client_config_fuzzer', 'ssh_bind_config_fuzzer', 'ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']	['ssh_client_config_fuzzer', 'ssh_bind_config_fuzzer', 'ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']
/src/libssh/src/dh.c	['ssh_known_hosts_fuzzer_nalloc', 'ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']	['ssh_known_hosts_fuzzer_nalloc', 'ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']
/src/libssh/src/callbacks.c	['ssh_client_config_fuzzer', 'ssh_sftp_attr_fuzzer_nalloc', 'ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']	['ssh_client_config_fuzzer', 'ssh_sftp_attr_fuzzer_nalloc', 'ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']
/src/libssh/src/string.c	['ssh_known_hosts_fuzzer_nalloc', 'ssh_privkey_fuzzer_nalloc', 'ssh_sshsig_fuzzer_nalloc', 'ssh_client_config_fuzzer', 'ssh_pubkey_fuzzer_nalloc', 'ssh_sftp_attr_fuzzer_nalloc', 'ssh_bind_config_fuzzer', 'ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']	['ssh_known_hosts_fuzzer_nalloc', 'ssh_sshsig_fuzzer_nalloc', 'ssh_client_config_fuzzer', 'ssh_pubkey_fuzzer_nalloc', 'ssh_sftp_attr_fuzzer_nalloc', 'ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']
/src/libssh/tests/fuzz/ssh_bind_config_fuzzer.c	['ssh_bind_config_fuzzer']	['ssh_bind_config_fuzzer']
/src/libssh/src/wrapper.c	['ssh_privkey_fuzzer_nalloc', 'ssh_client_config_fuzzer', 'ssh_pubkey_fuzzer_nalloc', 'ssh_sftp_attr_fuzzer_nalloc', 'ssh_bind_config_fuzzer', 'ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']	['ssh_client_config_fuzzer', 'ssh_sftp_attr_fuzzer_nalloc', 'ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']
/src/libssh/src/match.c	['ssh_known_hosts_fuzzer_nalloc', 'ssh_client_config_fuzzer', 'ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']	['ssh_known_hosts_fuzzer_nalloc', 'ssh_client_config_fuzzer', 'ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']
/src/libssh/src/kdf.c	['ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']	['ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']
/src/libssh/tests/fuzz/ssh_client_config_fuzzer.c	['ssh_client_config_fuzzer']	['ssh_client_config_fuzzer']
/src/libssh/src/sntrup761.c	['ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']	['ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']
/src/libssh/src/threads/libcrypto.c	['ssh_known_hosts_fuzzer_nalloc']	['ssh_known_hosts_fuzzer_nalloc']
/src/libssh/src/hybrid_mlkem.c	['ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']	['ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']
/src/libssh/src/messages.c	['ssh_client_config_fuzzer', 'ssh_sftp_attr_fuzzer_nalloc', 'ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']	['ssh_server_fuzzer']
/src/libssh/src/curve25519.c	['ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']	['ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']
/src/libssh/src/config.c	['ssh_client_config_fuzzer', 'ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']	['ssh_client_config_fuzzer']
/src/libssh/src/init.c	['ssh_known_hosts_fuzzer_nalloc', 'ssh_client_fuzzer_nalloc']	['ssh_known_hosts_fuzzer_nalloc', 'ssh_client_fuzzer_nalloc']
/src/libssh/src/packet_cb.c	[]	[]
/src/libssh/src/external/bcrypt_pbkdf.c	['ssh_privkey_fuzzer_nalloc', 'ssh_pubkey_fuzzer_nalloc', 'ssh_bind_config_fuzzer', 'ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']	[]
/src/libssh/src/config_parser.c	['ssh_client_config_fuzzer', 'ssh_bind_config_fuzzer', 'ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']	['ssh_client_config_fuzzer', 'ssh_bind_config_fuzzer', 'ssh_client_fuzzer_nalloc']
/src/libssh/src/sftp.c	['ssh_sftp_attr_fuzzer_nalloc']	['ssh_sftp_attr_fuzzer_nalloc']
/src/libssh/src/connector.c	['ssh_client_fuzzer_nalloc']	[]
/src/libssh/src/base64.c	['ssh_known_hosts_fuzzer_nalloc', 'ssh_privkey_fuzzer_nalloc', 'ssh_sshsig_fuzzer_nalloc', 'ssh_pubkey_fuzzer_nalloc', 'ssh_bind_config_fuzzer', 'ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']	['ssh_known_hosts_fuzzer_nalloc', 'ssh_privkey_fuzzer_nalloc', 'ssh_sshsig_fuzzer_nalloc', 'ssh_pubkey_fuzzer_nalloc']
/src/libssh/src/agent.c	['ssh_client_config_fuzzer', 'ssh_sftp_attr_fuzzer_nalloc', 'ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']	['ssh_client_config_fuzzer', 'ssh_sftp_attr_fuzzer_nalloc', 'ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']
/src/libssh/src/ecdh.c	[]	[]
/src/libssh/tests/fuzz/ssh_known_hosts_fuzzer.c	['ssh_known_hosts_fuzzer_nalloc']	['ssh_known_hosts_fuzzer_nalloc']
/src/libssh/src/pki.c	['ssh_known_hosts_fuzzer_nalloc', 'ssh_privkey_fuzzer_nalloc', 'ssh_sshsig_fuzzer_nalloc', 'ssh_client_config_fuzzer', 'ssh_pubkey_fuzzer_nalloc', 'ssh_sftp_attr_fuzzer_nalloc', 'ssh_bind_config_fuzzer', 'ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']	['ssh_known_hosts_fuzzer_nalloc', 'ssh_privkey_fuzzer_nalloc', 'ssh_sshsig_fuzzer_nalloc', 'ssh_client_config_fuzzer', 'ssh_pubkey_fuzzer_nalloc', 'ssh_sftp_attr_fuzzer_nalloc', 'ssh_bind_config_fuzzer', 'ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']
/src/libssh/tests/fuzz/ssh_sshsig_fuzzer.c	['ssh_sshsig_fuzzer_nalloc']	['ssh_sshsig_fuzzer_nalloc']
/src/libssh/src/session.c	['ssh_client_config_fuzzer', 'ssh_sftp_attr_fuzzer_nalloc', 'ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']	['ssh_client_config_fuzzer', 'ssh_sftp_attr_fuzzer_nalloc', 'ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']
/src/libssh/src/log.c	['ssh_known_hosts_fuzzer_nalloc', 'ssh_privkey_fuzzer_nalloc', 'ssh_sshsig_fuzzer_nalloc', 'ssh_client_config_fuzzer', 'ssh_pubkey_fuzzer_nalloc', 'ssh_sftp_attr_fuzzer_nalloc', 'ssh_bind_config_fuzzer', 'ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']	['ssh_known_hosts_fuzzer_nalloc', 'ssh_privkey_fuzzer_nalloc', 'ssh_sshsig_fuzzer_nalloc', 'ssh_client_config_fuzzer', 'ssh_pubkey_fuzzer_nalloc', 'ssh_sftp_attr_fuzzer_nalloc', 'ssh_bind_config_fuzzer', 'ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']
/src/libssh/tests/fuzz/ssh_client_fuzzer.c	['ssh_client_fuzzer_nalloc']	['ssh_client_fuzzer_nalloc']
/src/libssh/tests/fuzz/ssh_server_fuzzer.c	['ssh_server_fuzzer']	['ssh_server_fuzzer']
/src/libssh/tests/fuzz/nallocinc.c	['ssh_known_hosts_fuzzer_nalloc', 'ssh_privkey_fuzzer_nalloc', 'ssh_sshsig_fuzzer_nalloc', 'ssh_client_config_fuzzer', 'ssh_pubkey_fuzzer_nalloc', 'ssh_sftp_attr_fuzzer_nalloc', 'ssh_bind_config_fuzzer', 'ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']	['ssh_known_hosts_fuzzer_nalloc', 'ssh_privkey_fuzzer_nalloc', 'ssh_sshsig_fuzzer_nalloc', 'ssh_client_config_fuzzer', 'ssh_pubkey_fuzzer_nalloc', 'ssh_sftp_attr_fuzzer_nalloc', 'ssh_bind_config_fuzzer', 'ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']
/src/libssh/src/sftp_common.c	['ssh_sftp_attr_fuzzer_nalloc']	['ssh_sftp_attr_fuzzer_nalloc']
/src/libssh/src/poll.c	['ssh_known_hosts_fuzzer_nalloc', 'ssh_client_config_fuzzer', 'ssh_sftp_attr_fuzzer_nalloc', 'ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']	['ssh_known_hosts_fuzzer_nalloc', 'ssh_client_config_fuzzer', 'ssh_sftp_attr_fuzzer_nalloc', 'ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']
/src/libssh/src/pki_context.c	['ssh_client_config_fuzzer', 'ssh_sftp_attr_fuzzer_nalloc', 'ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']	['ssh_client_config_fuzzer', 'ssh_sftp_attr_fuzzer_nalloc', 'ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']
/src/libssh/src/md_crypto.c	['ssh_privkey_fuzzer_nalloc', 'ssh_sshsig_fuzzer_nalloc', 'ssh_client_config_fuzzer', 'ssh_pubkey_fuzzer_nalloc', 'ssh_bind_config_fuzzer', 'ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']	['ssh_client_config_fuzzer', 'ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']
/src/libssh/src/dh-gex.c	['ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']	['ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']
/src/libssh/src/channels.c	['ssh_client_config_fuzzer', 'ssh_sftp_attr_fuzzer_nalloc', 'ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']	['ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']
/src/libssh/src/bind.c	['ssh_bind_config_fuzzer', 'ssh_server_fuzzer']	['ssh_bind_config_fuzzer', 'ssh_server_fuzzer']
/src/libssh/src/error.c	['ssh_client_config_fuzzer', 'ssh_sftp_attr_fuzzer_nalloc', 'ssh_bind_config_fuzzer', 'ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']	['ssh_client_config_fuzzer', 'ssh_sftp_attr_fuzzer_nalloc', 'ssh_bind_config_fuzzer', 'ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']
/src/libssh/src/pcap.c	['ssh_client_config_fuzzer', 'ssh_sftp_attr_fuzzer_nalloc', 'ssh_server_fuzzer', 'ssh_client_fuzzer_nalloc']	[]

Directories in report

Directory
/src/libssh/src/threads/
/src/libssh/src/
/src/libssh/tests/fuzz/
/src/libssh/include/libssh/
/src/libssh/src/external/