report-basic: lock down the service

The basic approach is copied from systemd-journal-gatewayd.service, with some additions to lock down unneeded network access.
2026-04-01 16:38:14 +02:00
parent b47139e489
commit 5d0a953960
2 changed files with 25 additions and 0 deletions
@@ -16,6 +16,7 @@ ListenStream=/run/systemd/report/io.systemd.Basic
 FileDescriptorName=varlink
 SocketMode=0666
 Accept=yes
+MaxConnectionsPerSource=16
 RemoveOnStop=yes

 [Install]
@@ -10,4 +10,28 @@
 Description=Report System Basic Facts

 [Service]
+CapabilityBoundingSet=
+DeviceAllow=
+DynamicUser=yes
+LockPersonality=yes
+MemoryDenyWriteExecute=yes
+PrivateDevices=yes
+PrivateIPC=yes
+PrivateNetwork=yes
+PrivateTmp=disconnected
+ProtectControlGroups=yes
+ProtectHome=yes
+ProtectHostname=yes
+ProtectKernelLogs=yes
+ProtectKernelModules=yes
+ProtectKernelTunables=yes
+ProtectSystem=strict
+RestrictAddressFamilies=AF_UNIX
+RestrictNamespaces=yes
+RestrictRealtime=yes
+RestrictSUIDSGID=yes
+SystemCallArchitectures=native
+SystemCallErrorNumber=EPERM
+SystemCallFilter=@system-service
+
 ExecStart={{LIBEXECDIR}}/systemd-report-basic