Fuzz introspector: isc_lex_gettoken_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
121 192 2 :

['isc__mem_reget', 'isc__mem_get']

121 192 isc_buffer_reserve call site: 00094 /src/bind9/lib/isc/./include/isc/buffer.h:1129
63 775 12 :

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

65 777 isc_lex_gettoken call site: 00147 /src/bind9/lib/isc/lex.c:522
4 15 2 :

['isc_assertion_failed', 'mallocx']

24 35 mem_create call site: 00000 /src/bind9/lib/isc/mem.c:440
4 4 1 :

['isc_error_fatal']

4 4 isc__tls_initialize call site: 00000 /src/bind9/lib/isc/tls.c:221
2 2 1 :

['flockfile']

67 779 isc_lex_gettoken call site: 00076 /src/bind9/lib/isc/lex.c:413
2 2 1 :

['funlockfile']

2 2 isc_lex_gettoken call site: 00178 /src/bind9/lib/isc/lex.c:924
0 70 1 :

['isc__mem_free']

0 70 isc__mem_reallocate call site: 00000 /src/bind9/lib/isc/mem.c:845
0 0 None 67 779 isc_lex_gettoken call site: 00076 /src/bind9/lib/isc/lex.c:402
0 0 None 65 777 isc_lex_gettoken call site: 00078 /src/bind9/lib/isc/lex.c:420
0 0 None 65 777 isc_lex_gettoken call site: 00147 /src/bind9/lib/isc/lex.c:538
0 0 None 65 777 isc_lex_gettoken call site: 00147 /src/bind9/lib/isc/lex.c:544
0 0 None 65 777 isc_lex_gettoken call site: 00147 /src/bind9/lib/isc/lex.c:553

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 sallocx [function] [call site] 00019
7 malloc_usable_size [call site] 00020
5 isc_assertion_failed [function] [call site] 00021
4 mem_getstats [function] [call site] 00022
4 add_trace_entry [function] [call site] 00023
5 pthread_mutex_lock [call site] 00024
5 isc_string_strerror_r [function] [call site] 00025
6 __xpg_strerror_r [call site] 00026
5 isc_error_fatal [function] [call site] 00027
6 abort [call site] 00028
5 fprintf [call site] 00029
5 isc_hash64 [function] [call site] 00030
6 isc_assertion_failed [function] [call site] 00031
6 pthread_once [call site] 00032
6 isc_hash_initialize [function] [call site] 00033
6 isc_string_strerror_r [function] [call site] 00034
6 isc_error_fatal [function] [call site] 00035
6 isc_siphash24 [function] [call site] 00036
7 isc_assertion_failed [function] [call site] 00037
7 isc_assertion_failed [function] [call site] 00038
7 isc_ascii_tolower8 [function] [call site] 00039
7 isc__ascii_tolower1 [function] [call site] 00040
7 isc__ascii_tolower1 [function] [call site] 00041
7 isc__ascii_tolower1 [function] [call site] 00042
7 isc__ascii_tolower1 [function] [call site] 00043
7 isc__ascii_tolower1 [function] [call site] 00044
7 isc__ascii_tolower1 [function] [call site] 00045
7 isc__ascii_tolower1 [function] [call site] 00046
7 isc_assertion_failed [function] [call site] 00047
5 mallocx [function] [call site] 00048
5 isc_assertion_failed [function] [call site] 00049
5 isc_assertion_failed [function] [call site] 00050
5 pthread_mutex_unlock [call site] 00051
5 isc_string_strerror_r [function] [call site] 00052
5 isc_error_fatal [function] [call site] 00053
4 hi_water [function] [call site] 00054
3 isc__mem_strdup [function] [call site] 00055
4 isc_assertion_failed [function] [call site] 00056
4 isc_assertion_failed [function] [call site] 00057
4 strlen [call site] 00058
4 isc__mem_allocate [function] [call site] 00059
5 isc_assertion_failed [function] [call site] 00060
5 mem_get [function] [call site] 00061
5 sallocx [function] [call site] 00062
5 mem_getstats [function] [call site] 00063
5 add_trace_entry [function] [call site] 00064
5 hi_water [function] [call site] 00065
4 strlcpy [function] [call site] 00066
3 isc_buffer_allocate [function] [call site] 00067
4 isc_assertion_failed [function] [call site] 00068
4 isc__mem_get [function] [call site] 00069
4 isc_buffer_init [function] [call site] 00070
4 isc_buffer_setmctx [function] [call site] 00071
5 isc_assertion_failed [function] [call site] 00072
1 isc_lex_gettoken [function] [call site] 00073
2 isc_assertion_failed [function] [call site] 00074
2 isc_assertion_failed [function] [call site] 00075
2 isc_buffer_compact [function] [call site] 00076
3 isc_assertion_failed [function] [call site] 00077
2 flockfile [call site] 00078
2 getc_unlocked [call site] 00079
2 ferror [call site] 00080
2 __errno_location [call site] 00081
2 isc___errno2result [function] [call site] 00082
3 isc_string_strerror_r [function] [call site] 00083
3 isc_error_unexpected [function] [call site] 00084
2 pushandgrow [function] [call site] 00085
3 isc_buffer_allocate [function] [call site] 00086
3 isc_buffer_usedregion [function] [call site] 00087
4 isc_assertion_failed [function] [call site] 00088
4 isc_assertion_failed [function] [call site] 00089
3 isc_buffer_copyregion [function] [call site] 00090
4 isc_assertion_failed [function] [call site] 00091
4 isc_assertion_failed [function] [call site] 00092
4 isc_buffer_reserve [function] [call site] 00093
5 isc_assertion_failed [function] [call site] 00094
5 isc__mem_get [function] [call site] 00095
5 isc__mem_reget [function] [call site] 00096
6 isc_assertion_failed [function] [call site] 00097
6 isc__mem_get [function] [call site] 00098
6 isc__mem_put [function] [call site] 00099
7 isc_assertion_failed [function] [call site] 00100
7 delete_trace_entry [function] [call site] 00101
8 pthread_mutex_lock [call site] 00102
8 isc_string_strerror_r [function] [call site] 00103
8 isc_error_fatal [function] [call site] 00104
8 fprintf [call site] 00105
8 isc_hash64 [function] [call site] 00106
8 isc_assertion_failed [function] [call site] 00107
8 sdallocx [function] [call site] 00108
8 isc_assertion_failed [function] [call site] 00109
8 pthread_mutex_unlock [call site] 00110
8 isc_string_strerror_r [function] [call site] 00111
8 isc_error_fatal [function] [call site] 00112
7 mem_putstats [function] [call site] 00113
8 isc_assertion_failed [function] [call site] 00114
7 mem_put [function] [call site] 00115
8 sdallocx [function] [call site] 00116
7 lo_water [function] [call site] 00117
6 delete_trace_entry [function] [call site] 00118
6 mem_putstats [function] [call site] 00119
6 mem_realloc [function] [call site] 00120
7 rallocx [function] [call site] 00121
8 isc_assertion_failed [function] [call site] 00122
8 sallocx [function] [call site] 00123
8 realloc [call site] 00124
8 isc_assertion_failed [function] [call site] 00125
8 sallocx [function] [call site] 00126
7 isc_assertion_failed [function] [call site] 00127
6 mem_getstats [function] [call site] 00128
6 add_trace_entry [function] [call site] 00129
6 lo_water [function] [call site] 00130
6 hi_water [function] [call site] 00131
3 isc_assertion_failed [function] [call site] 00132
3 isc_buffer_free [function] [call site] 00133
4 isc_assertion_failed [function] [call site] 00134
4 isc_assertion_failed [function] [call site] 00135
4 isc_buffer_clearmctx [function] [call site] 00136
5 isc_assertion_failed [function] [call site] 00137
5 isc__mem_put [function] [call site] 00138
4 isc_buffer_invalidate [function] [call site] 00139
5 isc_assertion_failed [function] [call site] 00140
5 isc_assertion_failed [function] [call site] 00141
5 isc_assertion_failed [function] [call site] 00142
4 isc__mem_put [function] [call site] 00143
3 isc_buffer_putuint8 [function] [call site] 00144
4 isc_assertion_failed [function] [call site] 00145
4 isc_buffer_reserve [function] [call site] 00146
2 isc_buffer_getuint8 [function] [call site] 00147
3 isc_buffer_peekuint8 [function] [call site] 00148
4 isc_assertion_failed [function] [call site] 00149
3 isc_assertion_failed [function] [call site] 00150
2 __ctype_b_loc [call site] 00151
2 pushback [function] [call site] 00152
3 isc_assertion_failed [function] [call site] 00153
2 __ctype_b_loc [call site] 00154
2 pushback [function] [call site] 00155
2 isc_parse_uint32 [function] [call site] 00156
3 __ctype_b_loc [call site] 00157
3 __errno_location [call site] 00158
3 strtoul [call site] 00159
3 __errno_location [call site] 00160
2 grow_data [function] [call site] 00161
3 isc__mem_get [function] [call site] 00162
3 isc__mem_put [function] [call site] 00163
2 isc_assertion_failed [function] [call site] 00164
2 grow_data [function] [call site] 00165
2 isc_assertion_failed [function] [call site] 00166
2 pushback [function] [call site] 00167
2 grow_data [function] [call site] 00168
2 isc_assertion_failed [function] [call site] 00169
2 pushback [function] [call site] 00170
2 isc_assertion_failed [function] [call site] 00171
2 pushback [function] [call site] 00172
2 grow_data [function] [call site] 00173
2 isc_assertion_failed [function] [call site] 00174
2 isc_assertion_failed [function] [call site] 00175
2 grow_data [function] [call site] 00176
2 isc_assertion_failed [function] [call site] 00177
2 isc_error_fatal [function] [call site] 00178
2 funlockfile [call site] 00179