Fuzz introspector: fuzz_cpuinfo
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
5 36 cpuinfo_linux_parse_small_file call site: 00036 __errno_location
3 7 cpuinfo_linux_parse_multiline_file call site: 00007 __errno_location
3 11 cpuinfo_linux_parse_multiline_file call site: 00011 __errno_location
1 27 parse_line call site: 00027 cpuinfo_log_warning
1 46 cpuinfo_vlog call site: 00046 vsnprintf
1 50 cpuinfo_linux_get_max_processors_count call site: 00050 cpuinfo_log_error

Fuzzer calltree

0 LLVMFuzzerTestOneInput [function] [call site] 00000
1 sprintf [call site] 00001
1 fopen [call site] 00002
1 fwrite [call site] 00003
1 fclose [call site] 00004
1 cpuinfo_x86_linux_parse_proc_cpuinfo [function] [call site] 00005
2 cpuinfo_linux_parse_multiline_file [function] [call site] 00006
3 open [call site] 00007
3 __errno_location [call site] 00008
3 strerror [call site] 00009
3 cpuinfo_log_info [function] [call site] 00010
3 read [call site] 00011
3 __errno_location [call site] 00012
3 strerror [call site] 00013
3 cpuinfo_log_info [function] [call site] 00014
3 close [call site] 00015
2 parse_line [function] [call site] 00016
3 cpuinfo_log_debug [function] [call site] 00017
3 cpuinfo_log_debug [function] [call site] 00018
3 cpuinfo_log_debug [function] [call site] 00019
3 memcmp [call site] 00020
3 parse_apic_id [function] [call site] 00021
4 cpuinfo_log_warning [function] [call site] 00022
3 memcmp [call site] 00023
3 parse_core_id [function] [call site] 00024
4 cpuinfo_log_warning [function] [call site] 00025
3 memcmp [call site] 00026
3 parse_processor_number [function] [call site] 00027
4 cpuinfo_log_warning [function] [call site] 00028
4 cpuinfo_log_warning [function] [call site] 00029
3 cpuinfo_log_warning [function] [call site] 00030
3 cpuinfo_log_warning [function] [call site] 00031
3 cpuinfo_log_warning [function] [call site] 00032
3 cpuinfo_log_debug [function] [call site] 00033
1 cpuinfo_linux_get_max_processors_count [function] [call site] 00034
2 cpuinfo_linux_parse_small_file [function] [call site] 00035
3 open [call site] 00036
3 __errno_location [call site] 00037
3 strerror [call site] 00038
3 cpuinfo_log_info [function] [call site] 00039
3 __errno_location [call site] 00040
3 strerror [call site] 00041
3 cpuinfo_log_error [function] [call site] 00042
4 cpuinfo_vlog_error [function] [call site] 00043
5 cpuinfo_vlog [function] [call site] 00044
6 __assert_fail [call site] 00045
6 vsnprintf [call site] 00046
6 vsnprintf [call site] 00047
6 write [call site] 00048
3 close [call site] 00049
2 uint32_parser [function] [call site] 00050
3 cpuinfo_log_error [function] [call site] 00051
3 parse_number [function] [call site] 00052
3 cpuinfo_log_error [function] [call site] 00053
3 is_whitespace [function] [call site] 00054
3 cpuinfo_log_warning [function] [call site] 00055
2 cpuinfo_log_debug [function] [call site] 00056
2 cpuinfo_log_warning [function] [call site] 00057
2 cpuinfo_log_warning [function] [call site] 00058
1 unlink [call site] 00059