Fuzz introspector: privkey_fuzz
For issues and ideas: https://github.com/ossf/fuzz-introspector/issues

Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked Calltree index Parent function Callsite Largest blocked function
45 16 sshlog call site: 00016 match_pattern_list
44 168 sshkey_ssh_name_from_type_nid call site: 00168 sshkey_putb
13 101 sshkey_from_blob_internal call site: 00101 sshkey_match_keyname_to_sigalgs
10 138 sshkey_impl_from_key call site: 00138 helper_by_key
8 7 sshbuf_ptr call site: 00007 ssh_signal
3 134 sshkey_free call site: 00134 pkcs11_key_free
2 158 recallocarray call site: 00158 __errno_location
2 165 sshbuf_allocate call site: 00165 sshkey_ssh_name_from_type_nid
1 73 type_from_name call site: 00073 strcasecmp
1 84 sshbuf_set_parent call site: 00084 sshbuf_free
1 97 sshbuf_fromb call site: 00097 sshbuf_free
1 128 cert_new call site: 00128 cert_free

Fuzzer calltree

0 LLVMFuzzerTestOneInput [function] [call site] 00000
1 sshbuf_from [function] [call site] 00001
2 calloc [call site] 00002
1 sshkey_private_deserialize [function] [call site] 00003
2 sshbuf_get_cstring [function] [call site] 00004
3 sshbuf_peek_string_direct [function] [call site] 00005
4 sshbuf_ptr [function] [call site] 00006
5 sshbuf_check_sanity [function] [call site] 00007
6 ssh_signal [function] [call site] 00008
7 memset [call site] 00009
7 sigfillset [call site] 00010
7 sigaction [call site] 00011
7 strsignal [call site] 00012
7 __errno_location [call site] 00013
7 strerror [call site] 00014
7 sshlog [function] [call site] 00015
8 sshlogv [function] [call site] 00016
9 strrchr [call site] 00017
9 getpid [call site] 00018
9 snprintf [call site] 00019
9 match_pattern_list [function] [call site] 00020
10 strlen [call site] 00021
10 __ctype_b_loc [call site] 00022
10 tolower [call site] 00023
10 match_pattern [function] [call site] 00024
11 strlen [call site] 00025
11 xcalloc [function] [call site] 00026
12 sshfatal [function] [call site] 00027
13 sshlogv [function] [call site] 00028
14 snprintf [call site] 00029
14 snprintf [call site] 00030
14 strlcpy [function] [call site] 00031
14 do_log [function] [call site] 00032
15 __errno_location [call site] 00033
15 snprintf [call site] 00034
15 vsnprintf [call site] 00035
15 vsnprintf [call site] 00036
15 snprintf [call site] 00037
15 strlcpy [function] [call site] 00038
15 strnvis [function] [call site] 00039
16 __ctype_b_loc [call site] 00040
16 vis [function] [call site] 00041
17 __ctype_b_loc [call site] 00042
17 __ctype_b_loc [call site] 00043
16 vis [function] [call site] 00044
15 snprintf [call site] 00045
15 strlen [call site] 00046
15 write [call site] 00047
15 openlog [call site] 00048
15 syslog [call site] 00049
15 closelog [call site] 00050
15 __errno_location [call site] 00051
13 cleanup_exit [function] [call site] 00052
14 _exit [call site] 00053
12 sshfatal [function] [call site] 00054
12 calloc [call site] 00055
12 sshfatal [function] [call site] 00056
11 xcalloc [function] [call site] 00057
11 epsilon_closure [function] [call site] 00058
11 memset [call site] 00059
11 epsilon_closure [function] [call site] 00060
6 raise [call site] 00061
4 sshbuf_len [function] [call site] 00062
5 sshbuf_check_sanity [function] [call site] 00063
4 sshbuf_len [function] [call site] 00064
3 memchr [call site] 00065
3 sshbuf_get_string_direct [function] [call site] 00066
4 sshbuf_peek_string_direct [function] [call site] 00067
4 sshbuf_consume [function] [call site] 00068
5 sshbuf_check_sanity [function] [call site] 00069
5 sshbuf_len [function] [call site] 00070
2 sshkey_type_from_name [function] [call site] 00071
3 type_from_name [function] [call site] 00072
4 strcmp [call site] 00073
4 strcasecmp [call site] 00074
2 sshkey_type_is_cert [function] [call site] 00075
3 sshkey_impl_from_type [function] [call site] 00076
2 sshkey_froms [function] [call site] 00077
3 sshbuf_froms [function] [call site] 00078
4 sshbuf_peek_string_direct [function] [call site] 00079
4 sshbuf_from [function] [call site] 00080
4 sshbuf_consume [function] [call site] 00081
4 sshbuf_set_parent [function] [call site] 00082
5 sshbuf_check_sanity [function] [call site] 00083
5 sshbuf_check_sanity [function] [call site] 00084
4 sshbuf_free [function] [call site] 00085
5 sshbuf_check_sanity [function] [call site] 00086
5 sshbuf_free [function] [call site] 00087
6 freezero [function] [call site] 00088
7 explicit_bzero [call site] 00089
6 freezero [function] [call site] 00090
3 sshkey_from_blob_internal [function] [call site] 00091
4 sshbuf_fromb [function] [call site] 00092
5 sshbuf_check_sanity [function] [call site] 00093
5 sshbuf_ptr [function] [call site] 00094
5 sshbuf_len [function] [call site] 00095
5 sshbuf_from [function] [call site] 00096
5 sshbuf_set_parent [function] [call site] 00097
5 sshbuf_free [function] [call site] 00098
4 sshbuf_get_cstring [function] [call site] 00099
4 sshkey_type_from_name [function] [call site] 00100
4 sshkey_type_is_cert [function] [call site] 00101
4 sshkey_match_keyname_to_sigalgs [function] [call site] 00102
5 sshkey_type_from_name [function] [call site] 00103
5 match_pattern_list [function] [call site] 00104
5 match_pattern_list [function] [call site] 00105
5 match_pattern_list [function] [call site] 00106
5 match_pattern_list [function] [call site] 00107
5 match_pattern_list [function] [call site] 00108
5 match_pattern_list [function] [call site] 00109
5 match_pattern_list [function] [call site] 00110
5 match_pattern_list [function] [call site] 00111
5 match_pattern_list [function] [call site] 00112
5 match_pattern_list [function] [call site] 00113
5 match_pattern_list [function] [call site] 00114
4 sshkey_impl_from_type [function] [call site] 00115
4 sshkey_new [function] [call site] 00116
5 sshkey_impl_from_type [function] [call site] 00117
5 calloc [call site] 00118
5 sshkey_is_cert [function] [call site] 00119
6 sshkey_type_is_cert [function] [call site] 00120
5 cert_new [function] [call site] 00121
6 calloc [call site] 00122
6 sshbuf_new_label [function] [call site] 00123
7 calloc [call site] 00124
7 strncpy [call site] 00125
7 calloc [call site] 00126
6 sshbuf_new_label [function] [call site] 00127
6 sshbuf_new_label [function] [call site] 00128
6 cert_free [function] [call site] 00129
7 sshbuf_free [function] [call site] 00130
7 sshbuf_free [function] [call site] 00131
7 sshbuf_free [function] [call site] 00132
7 sshkey_free [function] [call site] 00133
8 sshkey_free_contents [function] [call site] 00134
9 pkcs11_key_free [function] [call site] 00135
10 sshkey_type [function] [call site] 00136
11 sshkey_impl_from_key [function] [call site] 00137
12 sshkey_impl_from_type_nid [function] [call site] 00138
10 sshlog [function] [call site] 00139
10 helper_by_key [function] [call site] 00140
11 sshbuf_new_label [function] [call site] 00141
11 sshfatal [function] [call site] 00142
11 sshkey_putb [function] [call site] 00143
12 to_blob_buf [function] [call site] 00144
13 sshkey_type_plain [function] [call site] 00145
13 sshkey_type_is_cert [function] [call site] 00146
13 sshbuf_len [function] [call site] 00147
13 sshbuf_putb [function] [call site] 00148
14 sshbuf_ptr [function] [call site] 00149
14 sshbuf_len [function] [call site] 00150
14 sshbuf_put [function] [call site] 00151
15 sshbuf_reserve [function] [call site] 00152
16 sshbuf_allocate [function] [call site] 00153
17 sshbuf_check_reserve [function] [call site] 00154
18 sshbuf_check_sanity [function] [call site] 00155
17 sshbuf_maybe_pack [function] [call site] 00156
17 recallocarray [function] [call site] 00157
18 calloc [call site] 00158
18 __errno_location [call site] 00159
18 __errno_location [call site] 00160
18 getpagesize [call site] 00161
18 memset [call site] 00162
18 memset [call site] 00163
18 explicit_bzero [call site] 00164
17 sshbuf_check_reserve [function] [call site] 00165
13 sshkey_impl_from_type [function] [call site] 00166
13 sshkey_ssh_name_from_type_nid [function] [call site] 00167
14 sshkey_impl_from_type_nid [function] [call site] 00168
13 sshbuf_put_cstring [function] [call site] 00169
14 strlen [call site] 00170
14 sshbuf_put_string [function] [call site] 00171
15 sshbuf_reserve [function] [call site] 00172
11 ssh_err [function] [call site] 00173
12 ssherr_libcrypto [function] [call site] 00174
13 OPENSSL_init_crypto [call site] 00175
13 ERR_get_error_line_data [call site] 00176
13 ERR_error_string_n [call site] 00177
13 snprintf [call site] 00178
13 sshlog [function] [call site] 00179
13 ERR_reason_error_string [call site] 00180
13 snprintf [call site] 00181
12 __errno_location [call site] 00182
12 strerror [call site] 00183
11 sshfatal [function] [call site] 00184
11 sshbuf_equals [function] [call site] 00185
12 sshbuf_ptr [function] [call site] 00186
12 sshbuf_len [function] [call site] 00187
12 sshbuf_len [function] [call site] 00188
12 sshbuf_ptr [function] [call site] 00189
12 sshbuf_len [function] [call site] 00190
12 memcmp [call site] 00191
11 sshbuf_free [function] [call site] 00192
11 sshbuf_free [function] [call site] 00193
10 sshkey_type [function] [call site] 00194
10 sshfatal [function] [call site] 00195
10 sshbuf_new_label [function] [call site] 00196
10 sshfatal [function] [call site] 00197
10 sshkey_putb [function] [call site] 00198
10 ssh_err [function] [call site] 00199
10 sshfatal [function] [call site] 00200
10 sshbuf_equals [function] [call site] 00201
10 sshfatal [function] [call site] 00202
10 xrecallocarray [function] [call site] 00203
11 recallocarray [function] [call site] 00204
11 sshfatal [function] [call site] 00205
10 helper_terminate [function] [call site] 00206
11 sshfatal [function] [call site] 00207
11 sshlog [function] [call site] 00208
11 close [call site] 00209
11 sshfatal [function] [call site] 00210
11 xrecallocarray [function] [call site] 00211
11 sshbuf_free [function] [call site] 00212
9 sshkey_impl_from_type [function] [call site] 00213
9 sshkey_is_cert [function] [call site] 00214
9 cert_free [function] [call site] 00215
10 freezero [function] [call site] 00216
9 freezero [function] [call site] 00217
9 sshkey_prekey_free [function] [call site] 00218
10 munmap [call site] 00219
8 freezero [function] [call site] 00220
5 sshkey_free [function] [call site] 00221
4 sshkey_type_is_cert [function] [call site] 00222
4 sshbuf_get_string_direct [function] [call site] 00223
4 sshkey_is_cert [function] [call site] 00224
4 cert_parse [function] [call site] 00225
5 sshbuf_putb [function] [call site] 00226
5 sshbuf_get_u64 [function] [call site] 00227
6 sshbuf_ptr [function] [call site] 00228
6 sshbuf_consume [function] [call site] 00229
5 sshbuf_get_u32 [function] [call site] 00230
6 sshbuf_ptr [function] [call site] 00231
6 sshbuf_consume [function] [call site] 00232
5 sshbuf_get_cstring [function] [call site] 00233
5 sshbuf_froms [function] [call site] 00234
5 sshbuf_get_u64 [function] [call site] 00235
5 sshbuf_get_u64 [function] [call site] 00236
5 sshbuf_froms [function] [call site] 00237
5 sshbuf_froms [function] [call site] 00238
5 sshbuf_get_string_direct [function] [call site] 00239
5 sshbuf_froms [function] [call site] 00240
5 sshbuf_len [function] [call site] 00241
5 sshbuf_get_string [function] [call site] 00242
6 sshbuf_get_string_direct [function] [call site] 00243
5 sshkey_get_sigtype [function] [call site] 00244
6 sshbuf_from [function] [call site] 00245
6 sshbuf_get_cstring [function] [call site] 00246
6 sshbuf_free [function] [call site] 00247
5 match_pattern_list [function] [call site] 00248
5 sshkey_from_blob_internal [function] [call site] 00249
6 sshbuf_len [function] [call site] 00250
6 sshbuf_free [function] [call site] 00251
6 sshkey_free [function] [call site] 00252
5 sshkey_type_is_valid_ca [function] [call site] 00253
6 sshkey_impl_from_type [function] [call site] 00254
5 sshbuf_len [function] [call site] 00255
5 sshbuf_get_cstring [function] [call site] 00256
5 recallocarray [function] [call site] 00257
5 sshbuf_putb [function] [call site] 00258
5 sshbuf_putb [function] [call site] 00259
5 sshbuf_len [function] [call site] 00260
5 sshbuf_get_string_direct [function] [call site] 00261
5 sshbuf_get_string_direct [function] [call site] 00262
5 sshbuf_reset [function] [call site] 00263
6 sshbuf_check_sanity [function] [call site] 00264
6 recallocarray [function] [call site] 00265
6 explicit_bzero [call site] 00266
5 sshbuf_len [function] [call site] 00267
5 sshbuf_get_string_direct [function] [call site] 00268
5 sshbuf_get_string_direct [function] [call site] 00269
5 sshbuf_reset [function] [call site] 00270
5 sshbuf_ptr [function] [call site] 00271
5 sshkey_verify [function] [call site] 00272
6 sshkey_impl_from_key [function] [call site] 00273
5 sshbuf_free [function] [call site] 00274
5 sshbuf_free [function] [call site] 00275
5 sshbuf_free [function] [call site] 00276
5 sshbuf_free [function] [call site] 00277
3 sshbuf_free [function] [call site] 00278
2 sshkey_ecdsa_nid_from_name [function] [call site] 00279
3 key_type_is_ecdsa_variant [function] [call site] 00280
3 strcmp [call site] 00281
2 sshkey_new [function] [call site] 00282
2 sshkey_impl_from_type [function] [call site] 00283
2 strcmp [call site] 00284
2 memcmp [call site] 00285
2 sshkey_free [function] [call site] 00286
1 sshkey_free [function] [call site] 00287
1 sshbuf_free [function] [call site] 00288