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-rw-r--r--units/systemd-timesyncd.service.in2
1 files changed, 2 insertions, 0 deletions
diff --git a/units/systemd-timesyncd.service.in b/units/systemd-timesyncd.service.in
index a856dad709..8c86021f5e 100644
--- a/units/systemd-timesyncd.service.in
+++ b/units/systemd-timesyncd.service.in
@@ -28,6 +28,8 @@ PrivateDevices=yes
ProtectSystem=full
ProtectHome=yes
WatchdogSec=3min
+MemoryDenyWriteExecute=yes
+SystemCallFilter=~@module @mount @obsolete @raw-io ptrace
[Install]
WantedBy=sysinit.target