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

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
347 347 2 :

['isc__tlserr2result', 'isc_error_fatal']

347 347 isc__crypto_initialize call site: 00000 /src/bind9/build/../lib/isc/crypto.c:291
343 343 1 :

['isc__tlserr2result']

347 354 opensslrsa_build_pkey call site: 00000 /src/bind9/build/../lib/dns/opensslrsa_link.c:528
343 343 1 :

['isc__tlserr2result']

343 343 raw_key_to_ossl call site: 00000 /src/bind9/build/../lib/dns/openssleddsa_link.c:99
4 4 1 :

['sysconf_ncpus']

4 4 ncpus_initialize call site: 00000 /src/bind9/build/../lib/isc/os.c:163
2 2 1 :

['RSA_set0_factors']

1384 1391 opensslrsa_build_pkey call site: 00000 /src/bind9/build/../lib/dns/opensslrsa_link.c:499
2 2 1 :

['RSA_set0_crt_params']

1039 1046 opensslrsa_build_pkey call site: 00000 /src/bind9/build/../lib/dns/opensslrsa_link.c:509
2 2 1 :

['EVP_PKEY_new_raw_private_key']

345 345 raw_key_to_ossl call site: 00000 /src/bind9/build/../lib/dns/openssleddsa_link.c:94
2 2 1 :

['ERR_clear_error']

4 4 isc_hmac_init call site: 00000 /src/bind9/build/../lib/isc/hmac.c:63
0 0 None 347 354 opensslrsa_build_pkey call site: 00000 /src/bind9/build/../lib/dns/opensslrsa_link.c:484
0 0 None 347 354 opensslrsa_build_pkey call site: 00000 /src/bind9/build/../lib/dns/opensslrsa_link.c:489
0 0 None 347 354 opensslrsa_build_pkey call site: 00000 /src/bind9/build/../lib/dns/opensslrsa_link.c:523
0 0 1 :

['isc_buffer_clear.5256']

40 40 convert_text call site: 00025 /src/bind9/build/../lib/dns/name.c:728

Fuzzer calltree

0 LLVMFuzzerTestOneInput [function] [call site] 00000
1 dns_fixedname_init [function] [call site] 00001
2 dns_name_init [function] [call site] 00002
2 isc_buffer_init [function] [call site] 00003
3 isc_assertion_failed [function] [call site] 00004
4 abort [call site] 00005
2 dns_name_setbuffer [function] [call site] 00006
3 isc_assertion_failed [function] [call site] 00007
3 isc_assertion_failed [function] [call site] 00008
1 isc_buffer_init [function] [call site] 00009
1 isc_buffer_add [function] [call site] 00010
2 isc_assertion_failed [function] [call site] 00011
2 isc_assertion_failed [function] [call site] 00012
1 isc_buffer_setactive [function] [call site] 00013
2 isc_assertion_failed [function] [call site] 00014
2 isc_assertion_failed [function] [call site] 00015
1 dns_fixedname_name [function] [call site] 00016
1 dns_name_fromtext [function] [call site] 00017
2 isc_assertion_failed [function] [call site] 00018
2 isc_assertion_failed [function] [call site] 00019
2 isc_buffer_clear [function] [call site] 00020
3 isc_assertion_failed [function] [call site] 00021
2 convert_text [function] [call site] 00022
3 isc_assertion_failed [function] [call site] 00023
3 isc_assertion_failed [function] [call site] 00024
3 isc_assertion_failed [function] [call site] 00025
3 isc_buffer_clear [function] [call site] 00026
3 isc_assertion_failed [function] [call site] 00027
3 isc_assertion_failed [function] [call site] 00028
3 __ctype_b_loc [call site] 00029
3 __ctype_b_loc [call site] 00030
3 isc_error_fatal [function] [call site] 00031
4 abort [call site] 00032
3 isc_assertion_failed [function] [call site] 00033
3 isc_assertion_failed [function] [call site] 00034
3 isc_assertion_failed [function] [call site] 00035
3 isc_assertion_failed [function] [call site] 00036
3 isc_assertion_failed [function] [call site] 00037
3 isc_assertion_failed [function] [call site] 00038
3 isc_buffer_forward [function] [call site] 00039
4 isc_assertion_failed [function] [call site] 00040
4 isc_assertion_failed [function] [call site] 00041
3 isc_buffer_add [function] [call site] 00042
1 isc_result_totext [function] [call site] 00043
1 fprintf [call site] 00044