Fuzz introspector: flb-it-fuzz-msgpack_parse_fuzzer_OSSFUZZ
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
65 65 2 :

['flb_pipe_write_all', 'perror']

65 65 flb_log_print call site: 00019 /src/fluent-bit/src/flb_log.c:651
2 2 1 :

['flb_worker_log_level']

2 2 flb_log_check call site: 00009 /src/fluent-bit/include/fluent-bit/flb_log.h:106
0 0 None 24 304 flb_utils_write_str call site: 00056 /src/fluent-bit/src/flb_utils.c:839
0 0 None 2 66 flb_msgpack_raw_to_json_sds call site: 00095 /src/fluent-bit/src/flb_pack.c:811
0 0 None 0 6 msgpack2json call site: 00043 /src/fluent-bit/src/flb_pack.c:627
0 0 None 0 0 flb_malloc call site: 00005 /src/fluent-bit/include/fluent-bit/flb_mem.h:76
0 0 None 0 0 flb_vector8_has_le call site: 00050 /src/fluent-bit/include/fluent-bit/flb_simd.h:219
0 0 None 0 0 flb_log_construct call site: 00015 /src/fluent-bit/src/flb_log.c:561
0 0 None 0 0 flb_log_construct call site: 00017 /src/fluent-bit/src/flb_log.c:586
0 0 None 0 0 flb_log_construct call site: 00018 /src/fluent-bit/src/flb_log.c:598
0 0 None 0 0 flb_log_print call site: 00012 /src/fluent-bit/src/flb_log.c:646
0 0 None 0 0 flb_msgpack_to_json call site: 00034 /src/fluent-bit/src/flb_pack.c:763

Fuzzer calltree

0 LLVMFuzzerTestOneInput [function] [call site] 00000
1 flb_msgpack_raw_to_json_sds [function] [call site] 00001
2 flb_sds_create_size [function] [call site] 00002
3 sds_alloc [function] [call site] 00003
4 flb_malloc [function] [call site] 00004
5 flb_fuzz_get_probability [function] [call site] 00005
4 __errno_location [call site] 00006
4 flb_errno_print [function] [call site] 00007
5 __xpg_strerror_r [call site] 00008
5 flb_log_check [function] [call site] 00009
6 flb_worker_log_level [function] [call site] 00010
5 flb_log_print [function] [call site] 00011
6 flb_log_construct [function] [call site] 00012
7 isatty [call site] 00013
7 time [call site] 00014
7 localtime_r [call site] 00015
7 snprintf [call site] 00016
7 vsnprintf [call site] 00017
7 strlen [call site] 00018
6 flb_worker_get [function] [call site] 00019
6 flb_pipe_write_all [function] [call site] 00020
7 write [call site] 00021
7 __errno_location [call site] 00022
7 flb_time_msleep [function] [call site] 00023
8 nanosleep [call site] 00024
7 __errno_location [call site] 00025
7 flb_errno_print [function] [call site] 00026
6 fprintf [call site] 00027
6 perror [call site] 00028
6 fprintf [call site] 00029
2 __errno_location [call site] 00030
2 flb_errno_print [function] [call site] 00031
2 flb_sds_destroy [function] [call site] 00032
3 flb_free [function] [call site] 00033
2 flb_msgpack_to_json [function] [call site] 00034
3 msgpack2json [function] [call site] 00035
4 try_to_write [function] [call site] 00036
5 strlen [call site] 00037
4 try_to_write [function] [call site] 00038
4 snprintf [call site] 00039
4 try_to_write [function] [call site] 00040
4 snprintf [call site] 00041
4 try_to_write [function] [call site] 00042
4 snprintf [call site] 00043
4 snprintf [call site] 00044
4 snprintf [call site] 00045
4 try_to_write [function] [call site] 00046
4 try_to_write [function] [call site] 00047
4 flb_utils_write_str [function] [call site] 00048
5 flb_vector8_load [function] [call site] 00049
5 flb_vector8_has_le [function] [call site] 00050
6 flb_vector8_broadcast [function] [call site] 00051
5 flb_vector8_has [function] [call site] 00052
6 flb_vector8_broadcast [function] [call site] 00053
6 flb_vector8_has_zero [function] [call site] 00054
7 flb_vector8_has_le [function] [call site] 00055
5 flb_vector8_has [function] [call site] 00056
5 flb_utf8_len [function] [call site] 00057
5 flb_utf8_decode [function] [call site] 00058
5 flb_log_check [function] [call site] 00059
5 flb_log_print [function] [call site] 00060
5 snprintf [call site] 00061
5 flb_log_check [function] [call site] 00062
5 flb_log_print [function] [call site] 00063
5 flb_utf8_len [function] [call site] 00064
5 flb_utf8_decode [function] [call site] 00065
5 flb_log_check [function] [call site] 00066
5 flb_log_print [function] [call site] 00067
5 flb_log_check [function] [call site] 00068
5 flb_log_print [function] [call site] 00069
5 snprintf [call site] 00070
5 snprintf [call site] 00071
4 try_to_write [function] [call site] 00072
4 try_to_write [function] [call site] 00073
4 flb_utils_write_str [function] [call site] 00074
4 try_to_write [function] [call site] 00075
4 try_to_write [function] [call site] 00076
4 snprintf [call site] 00077
4 try_to_write [function] [call site] 00078
4 try_to_write [function] [call site] 00079
4 try_to_write [function] [call site] 00080
4 msgpack2json [function] [call site] 00081
5 try_to_write [function] [call site] 00082
5 msgpack2json [function] [call site] 00083
6 try_to_write [function] [call site] 00084
6 try_to_write [function] [call site] 00085
6 key_exists_in_map [function] [call site] 00086
7 memcmp [call site] 00087
6 try_to_write [function] [call site] 00088
6 msgpack2json [function] [call site] 00089
7 try_to_write [function] [call site] 00090
7 msgpack2json [function] [call site] 00091
8 try_to_write [function] [call site] 00092
8 flb_log_check [function] [call site] 00093
8 flb_log_print [function] [call site] 00094
2 flb_sds_increase [function] [call site] 00095
3 flb_sds_alloc [function] [call site] 00096
3 flb_realloc [function] [call site] 00097
4 realloc [call site] 00098
3 __errno_location [call site] 00099
3 flb_errno_print [function] [call site] 00100
2 flb_sds_alloc [function] [call site] 00101
2 __errno_location [call site] 00102
2 flb_errno_print [function] [call site] 00103
2 flb_sds_destroy [function] [call site] 00104
2 flb_sds_len_set [function] [call site] 00105
1 flb_sds_destroy [function] [call site] 00106