Fuzz introspector: dns_name_fromwire_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 None 4 11 opensslrsa_build_pkey call site: 00000 /src/bind9/build/../lib/dns/opensslrsa_link.c:477

Fuzzer calltree

0 LLVMFuzzerTestOneInput [function] [call site] 00000
1 dns_fixedname_initname [function] [call site] 00001
2 dns_fixedname_init [function] [call site] 00002
3 dns_name_init [function] [call site] 00003
3 isc_buffer_init [function] [call site] 00004
4 isc_assertion_failed [function] [call site] 00005
5 abort [call site] 00006
3 dns_name_setbuffer [function] [call site] 00007
4 isc_assertion_failed [function] [call site] 00008
4 isc_assertion_failed [function] [call site] 00009
2 dns_fixedname_name [function] [call site] 00010
1 dns_fixedname_initname [function] [call site] 00011
1 isc_buffer_add [function] [call site] 00012
2 isc_assertion_failed [function] [call site] 00013
2 isc_assertion_failed [function] [call site] 00014
1 isc_buffer_add [function] [call site] 00015
1 alarm [call site] 00016
1 isc_buffer_init [function] [call site] 00017
1 isc_buffer_add [function] [call site] 00018
1 isc_buffer_setactive [function] [call site] 00019
2 isc_assertion_failed [function] [call site] 00020
2 isc_assertion_failed [function] [call site] 00021
1 isc_buffer_forward [function] [call site] 00022
2 isc_assertion_failed [function] [call site] 00023
2 isc_assertion_failed [function] [call site] 00024
1 dns_name_fromwire [function] [call site] 00025
2 isc_assertion_failed [function] [call site] 00026
2 isc_assertion_failed [function] [call site] 00027
2 isc_assertion_failed [function] [call site] 00028
2 isc_buffer_clear [function] [call site] 00029
3 isc_assertion_failed [function] [call site] 00030
2 dns_decompress_getpermitted [function] [call site] 00031
2 isc_buffer_forward [function] [call site] 00032
2 isc_buffer_add [function] [call site] 00033
1 isc_buffer_init [function] [call site] 00034
1 isc_buffer_add [function] [call site] 00035
1 isc_buffer_setactive [function] [call site] 00036
1 isc_buffer_forward [function] [call site] 00037
1 old_name_fromwire [function] [call site] 00038
2 isc_assertion_failed [function] [call site] 00039
2 isc_assertion_failed [function] [call site] 00040
2 isc_buffer_clear [function] [call site] 00041
2 isc_assertion_failed [function] [call site] 00042
2 dns_decompress_getpermitted [function] [call site] 00043
2 isc_error_fatal [function] [call site] 00044
3 abort [call site] 00045
2 isc_buffer_forward [function] [call site] 00046
2 isc_buffer_add [function] [call site] 00047
1 dns_name_equal [function] [call site] 00048
2 isc_assertion_failed [function] [call site] 00049
2 isc_assertion_failed [function] [call site] 00050
2 isc_assertion_failed [function] [call site] 00051
2 isc_ascii_lowerequal [function] [call site] 00052
3 isc__ascii_load8 [function] [call site] 00053
3 isc_ascii_tolower8 [function] [call site] 00054
3 isc__ascii_load8 [function] [call site] 00055
3 isc_ascii_tolower8 [function] [call site] 00056
3 isc__ascii_load8 [function] [call site] 00057
3 isc_ascii_tolower8 [function] [call site] 00058
3 isc__ascii_load8 [function] [call site] 00059
3 isc_ascii_tolower8 [function] [call site] 00060
1 isc_assertion_failed [function] [call site] 00061
1 isc_assertion_failed [function] [call site] 00062
1 isc_assertion_failed [function] [call site] 00063
1 isc_assertion_failed [function] [call site] 00064
1 isc_assertion_failed [function] [call site] 00065
1 isc_assertion_failed [function] [call site] 00066
1 isc_assertion_failed [function] [call site] 00067
1 isc_assertion_failed [function] [call site] 00068
1 isc_assertion_failed [function] [call site] 00069
1 isc_assertion_failed [function] [call site] 00070