Fuzz introspector: srtp-fuzzer
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
10 271 run_srtp_func call site: 00271 srtp_stream_remove
7 0 EP call site: 00000 fuzz_write_input
7 191 srtp_stream_init_keys call site: 00191 srtp_kdf_init
6 282 srtp_get_stream call site: 00282 srtp_stream_add
4 14 srtp_crypto_alloc call site: 00014 octet_string_set_to_zero
4 247 srtp_insert_or_dealloc_stream call site: 00247 srtp_stream_dealloc
3 241 srtp_stream_init_keys call site: 00241 srtp_stream_dealloc
2 88 srtp_stream_list_alloc call site: 00088 srtp_dealloc
2 174 srtp_kdf_init call site: 00174 srtp_cipher_dealloc
2 182 srtp_stream_init_keys call site: 00182 srtp_nibble_to_hex_char
2 208 srtp_stream_init_keys call site: 00208 srtp_kdf_clear
2 264 run_srtp_func call site: 00264 fuzz_alloc_succeed

Fuzzer calltree

0 LLVMFuzzerTestOneInput [function] [call site] 00000
1 fuzz_write_input [function] [call site] 00001
2 fopen [call site] 00002
2 abort [call site] 00003
2 fwrite [call site] 00004
2 printf [call site] 00005
2 abort [call site] 00006
2 fclose [call site] 00007
1 fuzz_mt19937_init [function] [call site] 00008
1 srand [call site] 00009
1 extract_policy [function] [call site] 00010
2 srtp_policy_create [function] [call site] 00011
3 srtp_crypto_alloc [function] [call site] 00012
4 calloc [call site] 00013
4 srtp_err_report [function] [call site] 00014
5 vfprintf [call site] 00015
5 vsnprintf [call site] 00016
5 strlen [call site] 00017
5 octet_string_set_to_zero [function] [call site] 00018
6 srtp_cleanse [function] [call site] 00019
4 srtp_err_report [function] [call site] 00020
2 srtp_policy_set_profile [function] [call site] 00021
3 srtp_crypto_policy_set_from_profile_for_rtp [function] [call site] 00022
4 srtp_crypto_policy_set_null_cipher_hmac_null [function] [call site] 00023
4 srtp_crypto_policy_set_rtp_default [function] [call site] 00024
4 srtp_crypto_policy_set_aes_cm_128_hmac_sha1_32 [function] [call site] 00025
4 srtp_crypto_policy_set_aes_cm_192_hmac_sha1_80 [function] [call site] 00026
4 srtp_crypto_policy_set_aes_cm_192_hmac_sha1_32 [function] [call site] 00027
4 srtp_crypto_policy_set_aes_cm_256_hmac_sha1_80 [function] [call site] 00028
4 srtp_crypto_policy_set_aes_cm_256_hmac_sha1_32 [function] [call site] 00029
4 srtp_crypto_policy_set_null_cipher_hmac_sha1_80 [function] [call site] 00030
4 srtp_crypto_policy_set_null_cipher_hmac_sha1_80 [function] [call site] 00031
3 srtp_crypto_policy_set_from_profile_for_rtcp [function] [call site] 00032
4 srtp_crypto_policy_set_null_cipher_hmac_null [function] [call site] 00033
4 srtp_crypto_policy_set_rtp_default [function] [call site] 00034
4 srtp_crypto_policy_set_rtp_default [function] [call site] 00035
4 srtp_crypto_policy_set_aes_cm_192_hmac_sha1_80 [function] [call site] 00036
4 srtp_crypto_policy_set_aes_cm_192_hmac_sha1_80 [function] [call site] 00037
4 srtp_crypto_policy_set_aes_cm_256_hmac_sha1_80 [function] [call site] 00038
4 srtp_crypto_policy_set_aes_cm_256_hmac_sha1_80 [function] [call site] 00039
4 srtp_crypto_policy_set_null_cipher_hmac_sha1_80 [function] [call site] 00040
4 srtp_crypto_policy_set_null_cipher_hmac_sha1_80 [function] [call site] 00041
2 srtp_policy_destroy [function] [call site] 00042
3 octet_string_set_to_zero [function] [call site] 00043
3 srtp_crypto_free [function] [call site] 00044
4 srtp_err_report [function] [call site] 00045
2 srtp_profile_get_master_key_length [function] [call site] 00046
2 srtp_profile_get_master_salt_length [function] [call site] 00047
2 abort [call site] 00048
2 srtp_policy_set_ssrc [function] [call site] 00049
2 srtp_policy_destroy [function] [call site] 00050
2 extract_and_add_key [function] [call site] 00051
3 extract_key [function] [call site] 00052
4 fuzz_alloc_succeed [function] [call site] 00053
5 fuzz_alloc [function] [call site] 00054
6 fuzz_mt19937_get [function] [call site] 00055
6 fuzz_mt19937_get [function] [call site] 00056
6 fuzz_mt19937_get [function] [call site] 00057
5 calloc [call site] 00058
3 extract_key [function] [call site] 00059
3 srtp_policy_add_key [function] [call site] 00060
3 fuzz_free [function] [call site] 00061
4 fuzz_is_special_pointer [function] [call site] 00062
3 fuzz_free [function] [call site] 00063
2 srtp_policy_destroy [function] [call site] 00064
2 srtp_policy_destroy [function] [call site] 00065
2 srtp_policy_add_enc_hdr_xtnd_id [function] [call site] 00066
2 extract_and_add_master_key [function] [call site] 00067
3 extract_key [function] [call site] 00068
3 extract_key [function] [call site] 00069
3 srtp_policy_use_mki [function] [call site] 00070
3 srtp_policy_add_key [function] [call site] 00071
3 fuzz_free [function] [call site] 00072
3 fuzz_free [function] [call site] 00073
2 srtp_policy_set_window_size [function] [call site] 00074
3 srtp_policy_is_valid_window_size [function] [call site] 00075
2 srtp_policy_destroy [function] [call site] 00076
2 srtp_policy_set_allow_repeat_tx [function] [call site] 00077
2 srtp_policy_destroy [function] [call site] 00078
1 srtp_create [function] [call site] 00079
2 srtp_policy_validate [function] [call site] 00080
3 srtp_policy_is_null_cipher_null_auth [function] [call site] 00081
3 srtp_profile_get_master_key_length [function] [call site] 00082
3 srtp_profile_get_master_salt_length [function] [call site] 00083
3 srtp_policy_is_valid_window_size [function] [call site] 00084
2 srtp_crypto_alloc [function] [call site] 00085
2 srtp_stream_list_alloc [function] [call site] 00086
3 srtp_crypto_alloc [function] [call site] 00087
3 srtp_crypto_alloc [function] [call site] 00088
3 srtp_crypto_free [function] [call site] 00089
2 srtp_dealloc [function] [call site] 00090
3 srtp_remove_and_dealloc_streams [function] [call site] 00091
4 srtp_stream_list_for_each [function] [call site] 00092
4 remove_and_dealloc_streams_cb [function] [call site] 00093
5 srtp_stream_list_remove [function] [call site] 00094
5 srtp_stream_dealloc [function] [call site] 00095
6 srtp_cipher_dealloc [function] [call site] 00096
6 srtp_cipher_dealloc [function] [call site] 00097
6 srtp_cipher_dealloc [function] [call site] 00098
6 octet_string_set_to_zero [function] [call site] 00099
6 octet_string_set_to_zero [function] [call site] 00100
6 octet_string_set_to_zero [function] [call site] 00101
6 srtp_crypto_free [function] [call site] 00102
6 srtp_crypto_free [function] [call site] 00103
6 srtp_crypto_free [function] [call site] 00104
6 srtp_rdbx_dealloc [function] [call site] 00105
7 bitvector_dealloc [function] [call site] 00106
8 srtp_crypto_free [function] [call site] 00107
6 srtp_crypto_free [function] [call site] 00108
6 srtp_crypto_free [function] [call site] 00109
3 srtp_stream_dealloc [function] [call site] 00110
3 srtp_stream_list_dealloc [function] [call site] 00111
4 srtp_crypto_free [function] [call site] 00112
4 srtp_crypto_free [function] [call site] 00113
3 srtp_crypto_free [function] [call site] 00114
2 srtp_stream_add [function] [call site] 00115
3 srtp_policy_validate [function] [call site] 00116
3 srtp_stream_alloc [function] [call site] 00117
4 srtp_crypto_alloc [function] [call site] 00118
4 srtp_policy_is_null_cipher_null_auth [function] [call site] 00119
4 srtp_stream_dealloc [function] [call site] 00120
4 srtp_crypto_alloc [function] [call site] 00121
4 srtp_stream_dealloc [function] [call site] 00122
4 srtp_crypto_kernel_alloc_cipher [function] [call site] 00123
5 srtp_crypto_kernel_get_cipher_type [function] [call site] 00124
4 srtp_stream_dealloc [function] [call site] 00125
4 srtp_crypto_kernel_alloc_auth [function] [call site] 00126
5 srtp_crypto_kernel_get_auth_type [function] [call site] 00127
4 srtp_stream_dealloc [function] [call site] 00128
4 srtp_crypto_kernel_alloc_cipher [function] [call site] 00129
4 srtp_stream_dealloc [function] [call site] 00130
4 srtp_crypto_kernel_alloc_auth [function] [call site] 00131
4 srtp_stream_dealloc [function] [call site] 00132
4 srtp_crypto_alloc [function] [call site] 00133
4 srtp_stream_dealloc [function] [call site] 00134
4 srtp_crypto_alloc [function] [call site] 00135
4 srtp_stream_dealloc [function] [call site] 00136
4 srtp_crypto_kernel_alloc_cipher [function] [call site] 00137
4 srtp_stream_dealloc [function] [call site] 00138
3 srtp_stream_init [function] [call site] 00139
4 srtp_err_report [function] [call site] 00140
4 srtp_policy_is_valid_window_size [function] [call site] 00141
4 srtp_rdbx_init [function] [call site] 00142
5 bitvector_alloc [function] [call site] 00143
6 srtp_crypto_alloc [function] [call site] 00144
6 bitvector_set_to_zero [function] [call site] 00145
5 srtp_index_init [function] [call site] 00146
4 srtp_rdbx_init [function] [call site] 00147
4 htonl [call site] 00148
4 srtp_rdb_init [function] [call site] 00149
4 srtp_stream_init_all_master_keys [function] [call site] 00150
5 srtp_policy_is_null_cipher_null_auth [function] [call site] 00151
5 srtp_key_limit_set [function] [call site] 00152
5 srtp_cipher_init [function] [call site] 00153
5 srtp_cipher_init [function] [call site] 00154
5 srtp_cipher_init [function] [call site] 00155
5 srtp_stream_init_keys [function] [call site] 00156
6 srtp_key_limit_set [function] [call site] 00157
6 srtp_crypto_alloc [function] [call site] 00158
6 full_key_length [function] [call site] 00159
6 full_auth_key_length [function] [call site] 00160
6 full_key_length [function] [call site] 00161
6 full_auth_key_length [function] [call site] 00162
6 srtp_cipher_get_key_length [function] [call site] 00163
6 srtp_cipher_get_key_length [function] [call site] 00164
6 base_key_length [function] [call site] 00165
6 srtp_err_report [function] [call site] 00166
6 srtp_err_report [function] [call site] 00167
6 srtp_err_report [function] [call site] 00168
6 srtp_err_report [function] [call site] 00169
6 srtp_err_report [function] [call site] 00170
6 srtp_err_report [function] [call site] 00171
6 srtp_kdf_init [function] [call site] 00172
7 srtp_crypto_kernel_alloc_cipher [function] [call site] 00173
7 srtp_cipher_init [function] [call site] 00174
7 srtp_cipher_dealloc [function] [call site] 00175
6 octet_string_set_to_zero [function] [call site] 00176
6 srtp_kdf_generate [function] [call site] 00177
7 srtp_cipher_set_iv [function] [call site] 00178
7 octet_string_set_to_zero [function] [call site] 00179
7 srtp_cipher_encrypt [function] [call site] 00180
6 octet_string_set_to_zero [function] [call site] 00181
6 srtp_octet_string_hex_string [function] [call site] 00182
7 srtp_nibble_to_hex_char [function] [call site] 00183
7 srtp_nibble_to_hex_char [function] [call site] 00184
6 srtp_err_report [function] [call site] 00185
6 srtp_err_report [function] [call site] 00186
6 srtp_kdf_generate [function] [call site] 00187
6 octet_string_set_to_zero [function] [call site] 00188
6 srtp_octet_string_hex_string [function] [call site] 00189
6 srtp_err_report [function] [call site] 00190
6 srtp_cipher_init [function] [call site] 00191
6 octet_string_set_to_zero [function] [call site] 00192
6 srtp_cipher_get_key_length [function] [call site] 00193
6 base_key_length [function] [call site] 00194
6 octet_string_set_to_zero [function] [call site] 00195
6 srtp_kdf_init [function] [call site] 00196
6 octet_string_set_to_zero [function] [call site] 00197
6 octet_string_set_to_zero [function] [call site] 00198
6 srtp_kdf_generate [function] [call site] 00199
6 octet_string_set_to_zero [function] [call site] 00200
6 srtp_octet_string_hex_string [function] [call site] 00201
6 srtp_err_report [function] [call site] 00202
6 srtp_err_report [function] [call site] 00203
6 srtp_kdf_generate [function] [call site] 00204
6 octet_string_set_to_zero [function] [call site] 00205
6 srtp_octet_string_hex_string [function] [call site] 00206
6 srtp_err_report [function] [call site] 00207
6 srtp_cipher_init [function] [call site] 00208
6 octet_string_set_to_zero [function] [call site] 00209
6 srtp_kdf_clear [function] [call site] 00210
7 srtp_cipher_dealloc [function] [call site] 00211
6 octet_string_set_to_zero [function] [call site] 00212
6 srtp_auth_get_key_length [function] [call site] 00213
6 srtp_kdf_generate [function] [call site] 00214
6 octet_string_set_to_zero [function] [call site] 00215
6 srtp_auth_get_key_length [function] [call site] 00216
6 srtp_octet_string_hex_string [function] [call site] 00217
6 srtp_err_report [function] [call site] 00218
6 octet_string_set_to_zero [function] [call site] 00219
6 base_key_length [function] [call site] 00220
6 srtp_err_report [function] [call site] 00221
6 srtp_kdf_generate [function] [call site] 00222
6 octet_string_set_to_zero [function] [call site] 00223
6 srtp_err_report [function] [call site] 00224
6 srtp_kdf_generate [function] [call site] 00225
6 octet_string_set_to_zero [function] [call site] 00226
6 srtp_octet_string_hex_string [function] [call site] 00227
6 srtp_err_report [function] [call site] 00228
6 srtp_octet_string_hex_string [function] [call site] 00229
6 srtp_err_report [function] [call site] 00230
6 srtp_cipher_init [function] [call site] 00231
6 octet_string_set_to_zero [function] [call site] 00232
6 srtp_auth_get_key_length [function] [call site] 00233
6 srtp_kdf_generate [function] [call site] 00234
6 octet_string_set_to_zero [function] [call site] 00235
6 srtp_auth_get_key_length [function] [call site] 00236
6 srtp_octet_string_hex_string [function] [call site] 00237
6 srtp_err_report [function] [call site] 00238
6 octet_string_set_to_zero [function] [call site] 00239
6 srtp_kdf_clear [function] [call site] 00240
6 octet_string_set_to_zero [function] [call site] 00241
4 srtp_rdbx_dealloc [function] [call site] 00242
3 srtp_stream_dealloc [function] [call site] 00243
3 srtp_stream_dealloc [function] [call site] 00244
3 srtp_stream_dealloc [function] [call site] 00245
3 srtp_insert_or_dealloc_stream [function] [call site] 00246
4 srtp_stream_list_insert [function] [call site] 00247
5 srtp_crypto_alloc [function] [call site] 00248
5 srtp_crypto_free [function] [call site] 00249
4 srtp_stream_dealloc [function] [call site] 00250
3 srtp_stream_dealloc [function] [call site] 00251
2 srtp_dealloc [function] [call site] 00252
1 extract_more_policies_to_session [function] [call site] 00253
2 extract_policy [function] [call site] 00254
2 srtp_stream_add [function] [call site] 00255
2 srtp_policy_destroy [function] [call site] 00256
1 extract_policy [function] [call site] 00257
1 extract_more_policies_to_session [function] [call site] 00258
1 extract_remove_stream_ssrc [function] [call site] 00259
2 fuzz_alloc_succeed [function] [call site] 00260
1 extract_set_roc [function] [call site] 00261
2 fuzz_alloc_succeed [function] [call site] 00262
1 run_srtp_func [function] [call site] 00263
2 fuzz_alloc_succeed [function] [call site] 00264
2 fuzz_alloc_succeed [function] [call site] 00265
2 fuzz_free [function] [call site] 00266
2 fuzz_testmem [function] [call site] 00267
2 fuzz_alloc_succeed [function] [call site] 00268
2 fuzz_alloc_succeed [function] [call site] 00269
2 fuzz_free [function] [call site] 00270
2 fuzz_free [function] [call site] 00271
2 fuzz_testmem [function] [call site] 00272
1 fuzz_free [function] [call site] 00273
1 srtp_stream_remove [function] [call site] 00274
2 htonl [call site] 00275
2 srtp_stream_list_get [function] [call site] 00276
2 srtp_stream_list_remove [function] [call site] 00277
2 srtp_stream_dealloc [function] [call site] 00278
1 srtp_stream_set_roc [function] [call site] 00279
2 htonl [call site] 00280
2 srtp_get_stream [function] [call site] 00281
3 srtp_stream_list_get [function] [call site] 00282
1 srtp_stream_get_roc [function] [call site] 00283
2 htonl [call site] 00284
2 srtp_get_stream [function] [call site] 00285
2 srtp_rdbx_get_roc [function] [call site] 00286
1 srtp_stream_add [function] [call site] 00287
1 srtp_policy_destroy [function] [call site] 00288
1 srtp_policy_destroy [function] [call site] 00289
1 srtp_policy_destroy [function] [call site] 00290
1 fuzz_free [function] [call site] 00291
1 fuzz_free [function] [call site] 00292
1 srtp_dealloc [function] [call site] 00293
1 fuzz_mt19937_destroy [function] [call site] 00294