From 40093ce5dd4446c011377de6ec74d12a5b8a95b9 Mon Sep 17 00:00:00 2001 From: Topi Miettinen Date: Thu, 9 Jun 2016 07:32:04 +0000 Subject: units: add a basic SystemCallFilter (#3471) Add a line SystemCallFilter=~@clock @module @mount @obsolete @raw-io ptrace for daemons shipped by systemd. As an exception, systemd-timesyncd needs @clock system calls and systemd-localed is not privileged. ptrace(2) is blocked to prevent seccomp escapes. --- units/systemd-machined.service.in | 1 + 1 file changed, 1 insertion(+) (limited to 'units/systemd-machined.service.in') diff --git a/units/systemd-machined.service.in b/units/systemd-machined.service.in index 1517068ecd..82dca05338 100644 --- a/units/systemd-machined.service.in +++ b/units/systemd-machined.service.in @@ -18,6 +18,7 @@ BusName=org.freedesktop.machine1 CapabilityBoundingSet=CAP_KILL CAP_SYS_PTRACE CAP_SYS_ADMIN CAP_SETGID CAP_SYS_CHROOT CAP_DAC_READ_SEARCH CAP_DAC_OVERRIDE CAP_CHOWN CAP_FOWNER CAP_FSETID CAP_MKNOD WatchdogSec=3min MemoryDenyWriteExecute=yes +SystemCallFilter=~@clock @module @mount @obsolete @raw-io ptrace # Note that machined cannot be placed in a mount namespace, since it # needs access to the host's mount namespace in order to implement the -- cgit v1.2.3-54-g00ecf