Fuzz introspector: isc_lex_getmastertoken_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
54 73 3 :

['isc_assertion_failed', 'isc__mem_get', 'isc__mem_reget']

54 73 isc_buffer_reserve call site: 00062 /src/bind9/build/../lib/isc/include/isc/buffer.h:1116
50 359 12 :

['isc___errno2result', 'pushback', 'isc_assertion_failed', '__ctype_b_loc', 'isc_parse_uint32', 'ferror', '__errno_location', 'pushandgrow', 'getc_unlocked', 'grow_data', 'isc_buffer_getuint8.18028', 'isc_error_fatal']

52 361 isc_lex_gettoken call site: 00105 /src/bind9/build/../lib/isc/lex.c:635
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 :

['flockfile']

54 363 isc_lex_gettoken call site: 00043 /src/bind9/build/../lib/isc/lex.c:407
2 2 1 :

['ERR_clear_error']

4 4 isc_hmac_init call site: 00000 /src/bind9/build/../lib/isc/hmac.c:63
2 2 1 :

['funlockfile']

2 2 isc_lex_gettoken call site: 00127 /src/bind9/build/../lib/isc/lex.c:900

Fuzzer calltree

0 LLVMFuzzerTestOneInput [function] [call site] 00000
1 isc_buffer_init [function] [call site] 00001
2 isc_assertion_failed [function] [call site] 00002
3 abort [call site] 00003
1 isc_buffer_add [function] [call site] 00004
2 isc_assertion_failed [function] [call site] 00005
2 isc_assertion_failed [function] [call site] 00006
1 isc_buffer_setactive [function] [call site] 00007
2 isc_assertion_failed [function] [call site] 00008
2 isc_assertion_failed [function] [call site] 00009
1 isc_lex_openbuffer [function] [call site] 00010
2 isc_assertion_failed [function] [call site] 00011
2 snprintf [call site] 00012
2 new_source [function] [call site] 00013
3 isc__mem_get [function] [call site] 00014
4 isc_assertion_failed [function] [call site] 00015
4 mem_get [function] [call site] 00016
5 mallocx [function] [call site] 00017
6 isc_assertion_failed [function] [call site] 00018
6 isc_assertion_failed [function] [call site] 00019
5 isc_assertion_failed [function] [call site] 00020
4 mem_getstats [function] [call site] 00021
5 isc_tid [function] [call site] 00022
3 isc__mem_strdup [function] [call site] 00023
4 isc_assertion_failed [function] [call site] 00024
4 isc_assertion_failed [function] [call site] 00025
4 strlen [call site] 00026
4 isc__mem_allocate [function] [call site] 00027
5 isc_assertion_failed [function] [call site] 00028
5 mem_get [function] [call site] 00029
5 sallocx [function] [call site] 00030
5 mem_getstats [function] [call site] 00031
4 strlcpy [function] [call site] 00032
3 isc_buffer_allocate [function] [call site] 00033
4 isc_assertion_failed [function] [call site] 00034
4 isc__mem_get [function] [call site] 00035
4 isc_buffer_init [function] [call site] 00036
4 isc_buffer_setmctx [function] [call site] 00037
5 isc_assertion_failed [function] [call site] 00038
1 isc_lex_getmastertoken [function] [call site] 00039
2 isc_lex_gettoken [function] [call site] 00040
3 isc_assertion_failed [function] [call site] 00041
3 isc_assertion_failed [function] [call site] 00042
3 isc_buffer_compact [function] [call site] 00043
4 isc_assertion_failed [function] [call site] 00044
3 flockfile [call site] 00045
3 getc_unlocked [call site] 00046
3 ferror [call site] 00047
3 __errno_location [call site] 00048
3 isc___errno2result [function] [call site] 00049
4 isc_string_strerror_r [function] [call site] 00050
5 __xpg_strerror_r [call site] 00051
4 isc_error_unexpected [function] [call site] 00052
3 pushandgrow [function] [call site] 00053
4 isc_buffer_allocate [function] [call site] 00054
4 isc_buffer_usedregion [function] [call site] 00055
5 isc_assertion_failed [function] [call site] 00056
5 isc_assertion_failed [function] [call site] 00057
4 isc_buffer_copyregion [function] [call site] 00058
5 isc_assertion_failed [function] [call site] 00059
5 isc_assertion_failed [function] [call site] 00060
5 isc_buffer_reserve [function] [call site] 00061
6 isc_assertion_failed [function] [call site] 00062
6 isc__mem_get [function] [call site] 00063
6 isc_assertion_failed [function] [call site] 00064
6 isc__mem_reget [function] [call site] 00065
7 isc_assertion_failed [function] [call site] 00066
7 isc__mem_get [function] [call site] 00067
7 isc__mem_put [function] [call site] 00068
8 isc_assertion_failed [function] [call site] 00069
8 mem_putstats [function] [call site] 00070
9 isc_tid [function] [call site] 00071
8 mem_put [function] [call site] 00072
9 sdallocx [function] [call site] 00073
7 mem_putstats [function] [call site] 00074
7 mem_realloc [function] [call site] 00075
8 rallocx [function] [call site] 00076
9 realloc [call site] 00077
9 isc_assertion_failed [function] [call site] 00078
8 isc_assertion_failed [function] [call site] 00079
7 mem_getstats [function] [call site] 00080
4 isc_assertion_failed [function] [call site] 00081
4 isc_buffer_free [function] [call site] 00082
5 isc_assertion_failed [function] [call site] 00083
5 isc_assertion_failed [function] [call site] 00084
5 isc_buffer_clearmctx [function] [call site] 00085
6 isc_assertion_failed [function] [call site] 00086
6 isc__mem_put [function] [call site] 00087
5 isc_buffer_invalidate [function] [call site] 00088
6 isc_assertion_failed [function] [call site] 00089
6 isc_assertion_failed [function] [call site] 00090
6 isc_assertion_failed [function] [call site] 00091
5 isc__mem_put [function] [call site] 00092
4 isc_buffer_putuint8 [function] [call site] 00093
5 isc_assertion_failed [function] [call site] 00094
5 isc_buffer_reserve [function] [call site] 00095
3 isc_buffer_getuint8 [function] [call site] 00096
4 isc_buffer_peekuint8 [function] [call site] 00097
5 isc_assertion_failed [function] [call site] 00098
4 isc_assertion_failed [function] [call site] 00099
3 __ctype_b_loc [call site] 00100
3 pushback [function] [call site] 00101
4 isc_assertion_failed [function] [call site] 00102
3 __ctype_b_loc [call site] 00103
3 pushback [function] [call site] 00104
3 isc_parse_uint32 [function] [call site] 00105
4 __ctype_b_loc [call site] 00106
4 __errno_location [call site] 00107
4 strtoul [call site] 00108
4 __errno_location [call site] 00109
3 grow_data [function] [call site] 00110
4 isc__mem_get [function] [call site] 00111
4 isc__mem_put [function] [call site] 00112
3 isc_assertion_failed [function] [call site] 00113
3 grow_data [function] [call site] 00114
3 isc_assertion_failed [function] [call site] 00115
3 pushback [function] [call site] 00116
3 grow_data [function] [call site] 00117
3 isc_assertion_failed [function] [call site] 00118
3 pushback [function] [call site] 00119
3 isc_assertion_failed [function] [call site] 00120
3 pushback [function] [call site] 00121
3 grow_data [function] [call site] 00122
3 isc_assertion_failed [function] [call site] 00123
3 isc_assertion_failed [function] [call site] 00124
3 grow_data [function] [call site] 00125
3 isc_assertion_failed [function] [call site] 00126
3 isc_error_fatal [function] [call site] 00127
4 abort [call site] 00128
3 funlockfile [call site] 00129
2 isc_lex_ungettoken [function] [call site] 00130
3 isc_assertion_failed [function] [call site] 00131
3 isc_assertion_failed [function] [call site] 00132
3 isc_assertion_failed [function] [call site] 00133
3 isc_assertion_failed [function] [call site] 00134
3 isc_buffer_first [function] [call site] 00135
4 isc_assertion_failed [function] [call site] 00136
2 isc_lex_ungettoken [function] [call site] 00137