Fuzz introspector: fuzz_libsec
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
22 22 1 :

['__rfmtpad']

22 46 __fmtcpy call site: 00000 /src/plan9port/src/lib9/fmt/dofmt.c:138
0 23 1 :

['makebits']

0 23 value_decode call site: 00011 /src/plan9port/src/libsec/port/x509.c:399
0 13 1 :

['chartorune']

0 82 fmtstrcpy call site: 00000 /src/plan9port/src/lib9/fmt/dofmt.c:253
0 2 1 :

['p9free']

0 2 vsmprint call site: 00062 /src/plan9port/src/lib9/fmt/vsmprint.c:78
0 0 None 32 118 __ifmt call site: 00000 /src/plan9port/src/lib9/fmt/dofmt.c:358
0 0 None 32 118 __ifmt call site: 00000 /src/plan9port/src/lib9/fmt/dofmt.c:362
0 0 None 32 118 __ifmt call site: 00000 /src/plan9port/src/lib9/fmt/dofmt.c:368
0 0 None 32 118 __ifmt call site: 00000 /src/plan9port/src/lib9/fmt/dofmt.c:373
0 0 None 32 118 __ifmt call site: 00000 /src/plan9port/src/lib9/fmt/dofmt.c:378
0 0 None 32 118 __ifmt call site: 00000 /src/plan9port/src/lib9/fmt/dofmt.c:384
0 0 None 32 118 __ifmt call site: 00000 /src/plan9port/src/lib9/fmt/dofmt.c:417
0 0 None 24 93 __ifmt call site: 00000 /src/plan9port/src/lib9/fmt/dofmt.c:431

Fuzzer calltree

0 LLVMFuzzerTestOneInput [function] [call site] 00000
1 p9malloc [function] [call site] 00001
1 asn1dump [function] [call site] 00002
2 decode [function] [call site] 00003
3 ber_decode [function] [call site] 00004
4 tag_decode [function] [call site] 00005
5 uint7_decode [function] [call site] 00006
4 length_decode [function] [call site] 00007
5 int_decode [function] [call site] 00008
4 value_decode [function] [call site] 00009
5 int_decode [function] [call site] 00010
5 makebytes [function] [call site] 00011
6 newbytes [function] [call site] 00012
7 emalloc [function] [call site] 00013
8 p9malloc [function] [call site] 00014
8 exits [function] [call site] 00015
9 getpid [call site] 00016
9 exit [call site] 00017
9 exitcode [function] [call site] 00018
9 exit [call site] 00019
5 makebits [function] [call site] 00020
6 newbits [function] [call site] 00021
7 emalloc [function] [call site] 00022
5 makebits [function] [call site] 00023
5 makebits [function] [call site] 00024
5 octet_decode [function] [call site] 00025
6 makebytes [function] [call site] 00026
6 ber_decode [function] [call site] 00027
7 value_decode [function] [call site] 00028
8 uint7_decode [function] [call site] 00029
8 makeints [function] [call site] 00030
9 newints [function] [call site] 00031
10 emalloc [function] [call site] 00032
8 makebytes [function] [call site] 00033
8 makebytes [function] [call site] 00034
8 seq_decode [function] [call site] 00035
9 ber_decode [function] [call site] 00036
9 mkel [function] [call site] 00037
10 emalloc [function] [call site] 00038
8 seq_decode [function] [call site] 00039
8 octet_decode [function] [call site] 00040
9 catbytes [function] [call site] 00041
10 newbytes [function] [call site] 00042
10 makebytes [function] [call site] 00043
10 makebytes [function] [call site] 00044
10 newbytes [function] [call site] 00045
9 freebytes [function] [call site] 00046
10 p9free [function] [call site] 00047
8 emalloc [function] [call site] 00048
8 p9free [function] [call site] 00049
8 makebytes [function] [call site] 00050
2 edump [function] [call site] 00051
3 tagdump [function] [call site] 00052
4 smprint [function] [call site] 00053
5 vsmprint [function] [call site] 00054
6 fmtstrinit [function] [call site] 00055
7 p9malloc [function] [call site] 00056
7 fmtStrFlush [function] [call site] 00057
8 p9realloc [function] [call site] 00058
9 realloc [call site] 00059
8 p9free [function] [call site] 00060
7 fmtlocaleinit [function] [call site] 00061
6 dofmt [function] [call site] 00062
7 chartorune [function] [call site] 00063
7 __fmtflush [function] [call site] 00064
7 __fmtflush [function] [call site] 00065
7 chartorune [function] [call site] 00066
7 __fmtflush [function] [call site] 00067
7 __fmtdispatch [function] [call site] 00068
8 chartorune [function] [call site] 00069
8 fmtfmt [function] [call site] 00070
6 p9free [function] [call site] 00071
6 fmtstrflush [function] [call site] 00072
4 smprint [function] [call site] 00073
3 print [function] [call site] 00074
4 vfprint [function] [call site] 00075
5 fmtfdinit [function] [call site] 00076
6 __fmtFdFlush [function] [call site] 00077
7 write [call site] 00078
6 fmtlocaleinit [function] [call site] 00079
5 dofmt [function] [call site] 00080
5 __fmtFdFlush [function] [call site] 00081
3 print [function] [call site] 00082
3 print [function] [call site] 00083
3 print [function] [call site] 00084
3 print [function] [call site] 00085
3 print [function] [call site] 00086
3 print [function] [call site] 00087
3 print [function] [call site] 00088
3 print [function] [call site] 00089
3 print [function] [call site] 00090
3 print [function] [call site] 00091
3 print [function] [call site] 00092
3 print [function] [call site] 00093
3 print [function] [call site] 00094
3 edump [function] [call site] 00095
4 print [function] [call site] 00096
4 edump [function] [call site] 00097
5 print [function] [call site] 00098
1 p9free [function] [call site] 00099