Project: systemd

Language c++
OSS-Fuzz project link
Project repository link
Build status: Fuzzers succeeding: Build log
Build status: Code coverage succeeding: Build log
Build status: Fuzz Introspector succeeding: Build log
Fuzzer count 46
Lines of code 291579
Lines covered 89543
Code coverage 30.71%
Code coverage report Report link
Static reachability 16.30%
Fuzz Introspector report Report link (from 2025-03-27)
Fuzzer Code coverage (lines) Latest Report Comments
fuzz-bcd 14.31% (avg: 14.31%, max: 14.31%) 2025-03-27
fuzz-bootspec 10.52% (avg: 10.52%, max: 10.52%) 2025-03-27
fuzz-bus-label 2.62% (avg: 2.62%, max: 2.62%) 2025-03-27
fuzz-bus-match 5.47% (avg: 5.47%, max: 5.47%) 2025-03-27
fuzz-bus-message 2.85% (avg: 2.85%, max: 2.85%) 2025-03-27
fuzz-calendarspec 6.53% (avg: 6.53%, max: 6.53%) 2025-03-27
fuzz-catalog 2.28% (avg: 2.28%, max: 2.28%) 2025-03-27
fuzz-dhcp-client 34.88% (avg: 34.87%, max: 34.96%) 2025-03-27
fuzz-dhcp-server 30.12% (avg: 30.07%, max: 30.12%) 2025-03-27
fuzz-dhcp-server-relay 12.63% (avg: 12.61%, max: 12.63%) 2025-03-27
fuzz-dhcp6-client 41.86% (avg: 41.84%, max: 41.97%) 2025-03-27
fuzz-dns-packet 23.09% (avg: 23.09%, max: 23.09%) 2025-03-27
fuzz-efi-osrel 7.4% (avg: 7.4%, max: 7.4%) 2025-03-27
fuzz-efi-printf 28.22% (avg: 28.22%, max: 28.22%) 2025-03-27
fuzz-efi-string 12.55% (avg: 12.55%, max: 12.55%) 2025-03-27
fuzz-env-file 3.6% (avg: 3.6%, max: 3.6%) 2025-03-27
fuzz-etc-hosts 3.34% (avg: 3.33%, max: 3.34%) 2025-03-27
fuzz-execute-serialize 3.2% (avg: 3.16%, max: 3.2%) 2025-03-27
fuzz-fido-id-desc 18.51% (avg: 18.51%, max: 18.51%) 2025-03-27
fuzz-hostname-setup 4.92% (avg: 5.01%, max: 5.11%) 2025-03-27
fuzz-journal-remote 15.87% (avg: 15.87%, max: 15.89%) 2025-03-27
fuzz-journald-audit 5.85% (avg: 5.85%, max: 5.87%) 2025-03-27
fuzz-journald-kmsg 5.39% (avg: 5.4%, max: 5.41%) 2025-03-27
fuzz-journald-native 5.63% (avg: 5.64%, max: 5.65%) 2025-03-27
fuzz-journald-native-fd 10.83% (avg: 10.87%, max: 10.9%) 2025-03-27
fuzz-journald-stream 14.68% (avg: 14.79%, max: 14.88%) 2025-03-27
fuzz-journald-syslog 5.73% (avg: 5.73%, max: 5.75%) 2025-03-27
fuzz-json 11.43% (avg: 11.43%, max: 11.43%) 2025-03-27
fuzz-link-parser 6.4% (avg: 6.39%, max: 6.42%) 2025-03-27
fuzz-lldp-rx 25.61% (avg: 25.61%, max: 25.61%) 2025-03-27
fuzz-manager-serialize 1.87% (avg: 1.85%, max: 1.87%) 2025-03-27
fuzz-ndisc-rs 44.31% (avg: 44.22%, max: 44.31%) 2025-03-27
fuzz-netdev-parser 6.9% (avg: 6.93%, max: 6.95%) 2025-03-27
fuzz-network-parser 17.22% (avg: 17.31%, max: 17.34%) 2025-03-27
fuzz-nspawn-oci 22.43% (avg: 22.42%, max: 22.61%) 2025-03-27
fuzz-nspawn-settings 22.06% (avg: 22.05%, max: 22.3%) 2025-03-27
fuzz-resource-record 35.34% (avg: 35.35%, max: 35.39%) 2025-03-27
fuzz-systemctl-parse-argv 12.46% (avg: 12.48%, max: 12.6%) 2025-03-27
fuzz-time-util 5.06% (avg: 5.06%, max: 5.06%) 2025-03-27
fuzz-udev-database 2.02% (avg: 2.02%, max: 2.02%) 2025-03-27
fuzz-udev-rule-parse-value 0.54% (avg: 0.54%, max: 0.55%) 2025-03-27
fuzz-udev-rules 7.47% (avg: 7.46%, max: 7.48%) 2025-03-27
fuzz-unit-file 3.74% (avg: 3.7%, max: 3.75%) 2025-03-27
fuzz-varlink 15.07% (avg: 14.85%, max: 15.07%) 2025-03-27
fuzz-varlink-idl 3.98% (avg: 3.98%, max: 3.99%) 2025-03-27
fuzz-xdg-desktop 19.99% (avg: 20.01%, max: 20.02%) 2025-03-27

Historical Progression

Per Fuzzer Progression

Functions of interest to fuzz

This section outlines functions that may be of interest to fuzz. They are based on ranking functions that have a lot of complexity but currently exhibit low code coverage. The complexity is calculated based on the function itself as well as the functions called by the given function, i.e. the tree of code that the function triggers.


This is only a minor amount of introspection information available for this project. Please consult the Fuzz Introspector report for more information, e.g. the introspection table of all functions in the target project available here.

Function name Function source file Accumulated cyclomatic complexity Code coverage
exec_invoke /src/systemd/src/core/exec-invoke.c 13563 0.0%
run_container /src/systemd/src/nspawn/nspawn.c 12746 0.0%
service_live_mount /src/systemd/src/core/service.c 12462 0.0%
socket_sigchld_event /src/systemd/src/core/socket.c 11923 0.0%
socket_start /src/systemd/src/core/socket.c 11905 0.0%
socket_enter_start_pre /src/systemd/src/core/socket.c 11884 0.0%
socket_enter_start_open /src/systemd/src/core/socket.c 11882 0.0%
mount_sigchld_event /src/systemd/src/core/mount.c 11556 0.0%
on_post /src/systemd/src/udev/udev-manager.c 11504 0.0%
event_queue_start /src/systemd/src/udev/udev-manager.c 11397 0.0%