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

Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked Calltree index Parent function Callsite Largest blocked function
240 34 trace2_cmd_error_va_fl call site: 00034 tr2_dst_get_trace_fd
10 4 unpack_object_header_buffer call site: 00004 die
7 26 xwrite call site: 00026 trace2_cmd_error_va_fl
3 18 vfreportf call site: 00018 _
2 15 vfreportf call site: 00015 fprintf
1 275 unpack_object_header_buffer call site: 00275 die
1 277 unpack_object_header_buffer call site: 00277 die

Fuzzer calltree

0 LLVMFuzzerTestOneInput [function] [call site] 00000
1 unpack_object_header_buffer [function] [call site] 00001
2 error [function] [call site] 00002
2 const_error [function] [call site] 00003
2 st_left_shift [function] [call site] 00004
3 die [function] [call site] 00005
4 fputs [call site] 00006
4 common_exit [function] [call site] 00007
5 check_bug_if_BUG [function] [call site] 00008
6 BUG_fl [function] [call site] 00009
7 BUG_vfl [function] [call site] 00010
8 BUG_vfl_common [function] [call site] 00011
9 snprintf [call site] 00012
9 vreportf [function] [call site] 00013
10 vfreportf [function] [call site] 00014
11 strlen [call site] 00015
11 fprintf [call site] 00016
11 abort [call site] 00017
11 vsnprintf [call site] 00018
11 _ [function] [call site] 00019
12 gettext [call site] 00020
11 fprintf [call site] 00021
11 fflush [call site] 00022
11 fileno [call site] 00023
11 write_in_full [function] [call site] 00024
12 xwrite [function] [call site] 00025
13 write [call site] 00026
13 __errno_location [call site] 00027
13 __errno_location [call site] 00028
13 handle_nonblock [function] [call site] 00029
14 poll [call site] 00030
12 __errno_location [call site] 00031
8 abort [call site] 00032
8 trace2_cmd_error_va_fl [function] [call site] 00033
9 tr2_dst_trace_want [function] [call site] 00034
10 tr2_dst_get_trace_fd [function] [call site] 00035
11 tr2_sysenv_get [function] [call site] 00036
12 BUG_fl [function] [call site] 00037
12 getenv [call site] 00038
12 xstrdup [function] [call site] 00039
13 strdup [call site] 00040
13 die [function] [call site] 00041
14 exit [call site] 00042
11 strcmp [call site] 00043
11 strcasecmp [call site] 00044
11 strcmp [call site] 00045
11 strcasecmp [call site] 00046
11 strlen [call site] 00047
11 atoi [call site] 00048
11 is_absolute_path [function] [call site] 00049
12 git_is_dir_sep [function] [call site] 00050
12 git_has_dos_drive_prefix [function] [call site] 00051
11 is_directory [function] [call site] 00052
12 stat64 [call site] 00053
11 tr2_dst_try_auto_path [function] [call site] 00054
12 tr2_sid_get [function] [call site] 00055
13 tr2_sid_compute [function] [call site] 00056
14 getenv [call site] 00057
14 strbuf_addstr [function] [call site] 00058
15 strlen [call site] 00059
15 strbuf_add [function] [call site] 00060
16 strbuf_grow [function] [call site] 00061
17 die [function] [call site] 00062
17 st_mult [function] [call site] 00063
18 die [function] [call site] 00064
17 xrealloc [function] [call site] 00065
18 xmalloc [function] [call site] 00066
19 do_xmalloc [function] [call site] 00067
20 memory_limit_check [function] [call site] 00068
21 git_env_ulong [function] [call site] 00069
22 getenv [call site] 00070
22 git_parse_ulong [function] [call site] 00071
23 git_parse_unsigned [function] [call site] 00072
24 strchr [call site] 00073
24 __errno_location [call site] 00074
24 __errno_location [call site] 00075
24 strtoumax [call site] 00076
24 __errno_location [call site] 00077
24 __errno_location [call site] 00078
24 get_unit_factor [function] [call site] 00079
25 strcasecmp [call site] 00080
25 strcasecmp [call site] 00081
25 strcasecmp [call site] 00082
24 __errno_location [call site] 00083
24 __errno_location [call site] 00084
24 __errno_location [call site] 00085
22 _ [function] [call site] 00086
22 die [function] [call site] 00087
21 error [function] [call site] 00088
21 const_error [function] [call site] 00089
21 die [function] [call site] 00090
20 die [function] [call site] 00091
20 error [function] [call site] 00092
20 const_error [function] [call site] 00093
18 memory_limit_check [function] [call site] 00094
18 realloc [call site] 00095
18 die [function] [call site] 00096
16 strbuf_setlen [function] [call site] 00097
17 BUG_fl [function] [call site] 00098
17 __assert_fail [call site] 00099
14 strbuf_addch [function] [call site] 00100
15 strbuf_avail [function] [call site] 00101
15 strbuf_grow [function] [call site] 00102
14 tr2_sid_append_my_sid_component [function] [call site] 00103
15 getpid [call site] 00104
15 tr2_tbuf_utc_datetime [function] [call site] 00105
16 gettimeofday [call site] 00106
16 gmtime_r [call site] 00107
16 xsnprintf [function] [call site] 00108
17 vsnprintf [call site] 00109
17 _ [function] [call site] 00110
17 die [function] [call site] 00111
17 BUG_fl [function] [call site] 00112
15 strbuf_addstr [function] [call site] 00113
15 strbuf_addch [function] [call site] 00114
15 xgethostname [function] [call site] 00115
16 gethostname [call site] 00116
15 strbuf_add [function] [call site] 00117
15 strlen [call site] 00118
15 git_hash_update [function] [call site] 00119
15 git_hash_final [function] [call site] 00120
15 hash_to_hex_algop_r [function] [call site] 00121
15 strbuf_addch [function] [call site] 00122
15 strbuf_add [function] [call site] 00123
15 strbuf_addf [function] [call site] 00124
16 strbuf_vaddf [function] [call site] 00125
17 strbuf_avail [function] [call site] 00126
17 strbuf_grow [function] [call site] 00127
17 vsnprintf [call site] 00128
17 _ [function] [call site] 00129
17 die [function] [call site] 00130
17 strbuf_avail [function] [call site] 00131
17 strbuf_grow [function] [call site] 00132
17 vsnprintf [call site] 00133
17 strbuf_avail [function] [call site] 00134
17 BUG_fl [function] [call site] 00135
17 strbuf_setlen [function] [call site] 00136
14 setenv [call site] 00137
12 strrchr [call site] 00138
12 strbuf_addstr [function] [call site] 00139
12 git_is_dir_sep [function] [call site] 00140
12 strbuf_addch [function] [call site] 00141
12 strbuf_addstr [function] [call site] 00142
12 tr2_dst_too_many_files [function] [call site] 00143
13 tr2_sysenv_get [function] [call site] 00144
13 atoi [call site] 00145
13 strbuf_addstr [function] [call site] 00146
13 git_is_dir_sep [function] [call site] 00147
13 strbuf_addbuf [function] [call site] 00148
14 strbuf_grow [function] [call site] 00149
14 strbuf_setlen [function] [call site] 00150
13 strbuf_addstr [function] [call site] 00151
13 stat64 [call site] 00152
13 opendir [call site] 00153
13 readdir64 [call site] 00154
13 closedir [call site] 00155
13 open64 [call site] 00156
13 strbuf_release [function] [call site] 00157
14 strbuf_init [function] [call site] 00158
15 strbuf_grow [function] [call site] 00159
13 strbuf_release [function] [call site] 00160
12 strbuf_setlen [function] [call site] 00161
12 strbuf_addf [function] [call site] 00162
12 open64 [call site] 00163
12 strbuf_release [function] [call site] 00164
12 tr2_dst_want_warning [function] [call site] 00165
13 tr2_sysenv_get [function] [call site] 00166
13 atoi [call site] 00167
12 tr2_sysenv_display_name [function] [call site] 00168
13 BUG_fl [function] [call site] 00169
12 warning [function] [call site] 00170
12 tr2_dst_want_warning [function] [call site] 00171
12 tr2_sysenv_display_name [function] [call site] 00172
12 __errno_location [call site] 00173
12 strerror [call site] 00174
12 warning [function] [call site] 00175
12 tr2_dst_trace_disable [function] [call site] 00176
13 close [call site] 00177
12 strbuf_release [function] [call site] 00178
12 strbuf_release [function] [call site] 00179
11 tr2_dst_try_path [function] [call site] 00180
12 open64 [call site] 00181
12 tr2_dst_want_warning [function] [call site] 00182
12 tr2_sysenv_display_name [function] [call site] 00183
12 __errno_location [call site] 00184
12 strerror [call site] 00185
12 warning [function] [call site] 00186
12 tr2_dst_trace_disable [function] [call site] 00187
11 starts_with [function] [call site] 00188
11 tr2_dst_try_unix_domain_socket [function] [call site] 00189
12 skip_prefix [function] [call site] 00190
12 skip_prefix [function] [call site] 00191
12 skip_prefix [function] [call site] 00192
12 tr2_dst_want_warning [function] [call site] 00193
12 tr2_sysenv_display_name [function] [call site] 00194
12 warning [function] [call site] 00195
12 tr2_dst_trace_disable [function] [call site] 00196
12 is_absolute_path [function] [call site] 00197
12 strlen [call site] 00198
12 tr2_dst_want_warning [function] [call site] 00199
12 tr2_sysenv_display_name [function] [call site] 00200
12 warning [function] [call site] 00201
12 tr2_dst_trace_disable [function] [call site] 00202
12 tr2_dst_try_uds_connect [function] [call site] 00203
13 socket [call site] 00204
13 gitstrlcpy [function] [call site] 00205
14 strlen [call site] 00206
13 connect [call site] 00207
13 __errno_location [call site] 00208
13 close [call site] 00209
13 __errno_location [call site] 00210
12 __errno_location [call site] 00211
12 tr2_dst_try_uds_connect [function] [call site] 00212
12 tr2_dst_want_warning [function] [call site] 00213
12 tr2_sysenv_display_name [function] [call site] 00214
12 __errno_location [call site] 00215
12 strerror [call site] 00216
12 warning [function] [call site] 00217
12 tr2_dst_trace_disable [function] [call site] 00218
11 tr2_dst_malformed_warning [function] [call site] 00219
12 tr2_sysenv_display_name [function] [call site] 00220
12 warning [function] [call site] 00221
11 tr2_dst_trace_disable [function] [call site] 00222
8 common_exit [function] [call site] 00223
9 trace2_cmd_exit_fl [function] [call site] 00224
10 trace2_collect_process_info [function] [call site] 00225
11 trace2_is_enabled [function] [call site] 00226
11 getppid [call site] 00227
11 push_ancestry_name [function] [call site] 00228
12 stat_parent_pid [function] [call site] 00229
13 strbuf_addf [function] [call site] 00230
13 git_fopen [function] [call site] 00231
14 fopen64 [call site] 00232
14 fopen64 [call site] 00233
14 fileno [call site] 00234
14 fstat64 [call site] 00235
14 fclose [call site] 00236
14 fclose [call site] 00237
14 __errno_location [call site] 00238
13 strbuf_fread [function] [call site] 00239
14 strbuf_grow [function] [call site] 00240
14 fread [call site] 00241
14 strbuf_setlen [function] [call site] 00242
14 strbuf_release [function] [call site] 00243
13 parse_proc_stat [function] [call site] 00244
14 strchr [call site] 00245
14 strrchr [call site] 00246
14 strchr [call site] 00247
14 strtol [call site] 00248
14 strbuf_add [function] [call site] 00249
13 fclose [call site] 00250
13 strbuf_release [function] [call site] 00251
13 strbuf_release [function] [call site] 00252
12 strvec_push [function] [call site] 00253
13 xstrdup [function] [call site] 00254
13 strvec_push_nodup [function] [call site] 00255
14 st_mult [function] [call site] 00256
14 xrealloc [function] [call site] 00257
12 push_ancestry_name [function] [call site] 00258
13 strbuf_release [function] [call site] 00259
11 trace2_cmd_ancestry_fl [function] [call site] 00260
12 tr2_dst_trace_want [function] [call site] 00261
11 strvec_clear [function] [call site] 00262
12 strvec_init [function] [call site] 00263
10 getnanotime [function] [call site] 00264
11 highres_nanos [function] [call site] 00265
12 clock_gettime [call site] 00266
11 gettimeofday_nanos [function] [call site] 00267
12 gettimeofday [call site] 00268
11 gettimeofday_nanos [function] [call site] 00269
11 highres_nanos [function] [call site] 00270
10 tr2tls_absolute_elapsed [function] [call site] 00271
10 tr2_dst_trace_want [function] [call site] 00272
8 exit [call site] 00273
8 abort [call site] 00274
2 st_add [function] [call site] 00275
3 die [function] [call site] 00276
2 cast_size_t_to_ulong [function] [call site] 00277
3 die [function] [call site] 00278