From b0573f1a6f8022aed4954d5ca19cc037d25cd5e7 Mon Sep 17 00:00:00 2001
From: Lennart Poettering <lennart@poettering.net>
Date: Wed, 20 Mar 2019 19:52:20 +0100
Subject: [PATCH] units: turn on RestrictSUIDSGID= in most of our long-running
daemons
(cherry picked from commit 62aa29247c3d74bcec0607c347f2be23cd90675d)
Related: #1687512
---
units/systemd-coredump@.service.in | 1 +
units/systemd-hostnamed.service.in | 1 +
units/systemd-journal-remote.service.in | 1 +
units/systemd-journald.service.in | 1 +
units/systemd-localed.service.in | 1 +
units/systemd-logind.service.in | 1 +
units/systemd-networkd.service.in | 1 +
units/systemd-resolved.service.in | 1 +
units/systemd-timedated.service.in | 1 +
units/systemd-timesyncd.service.in | 1 +
units/systemd-udevd.service.in | 3 ++-
11 files changed, 12 insertions(+), 1 deletion(-)
diff --git a/units/systemd-coredump@.service.in b/units/systemd-coredump@.service.in
index 68a68a5055..d69ebd8b24 100644
--- a/units/systemd-coredump@.service.in
+++ b/units/systemd-coredump@.service.in
@@ -33,6 +33,7 @@ MemoryDenyWriteExecute=yes
RestrictRealtime=yes
RestrictNamespaces=yes
RestrictAddressFamilies=AF_UNIX
+RestrictSUIDSGID=yes
SystemCallFilter=@system-service
SystemCallErrorNumber=EPERM
SystemCallArchitectures=native
diff --git a/units/systemd-hostnamed.service.in b/units/systemd-hostnamed.service.in
index 4e5470dd29..97d4e142bc 100644
--- a/units/systemd-hostnamed.service.in
+++ b/units/systemd-hostnamed.service.in
@@ -29,6 +29,7 @@ MemoryDenyWriteExecute=yes
RestrictRealtime=yes
RestrictNamespaces=yes
RestrictAddressFamilies=AF_UNIX
+RestrictSUIDSGID=yes
SystemCallFilter=@system-service sethostname
SystemCallErrorNumber=EPERM
SystemCallArchitectures=native
diff --git a/units/systemd-journal-remote.service.in b/units/systemd-journal-remote.service.in
index a94265f215..3c914f5a40 100644
--- a/units/systemd-journal-remote.service.in
+++ b/units/systemd-journal-remote.service.in
@@ -28,6 +28,7 @@ MemoryDenyWriteExecute=yes
RestrictRealtime=yes
RestrictNamespaces=yes
RestrictAddressFamilies=AF_UNIX AF_INET AF_INET6
+RestrictSUIDSGID=yes
SystemCallArchitectures=native
LockPersonality=yes
LogsDirectory=journal/remote
diff --git a/units/systemd-journald.service.in b/units/systemd-journald.service.in
index e109b25792..ab9ec35ff8 100644
--- a/units/systemd-journald.service.in
+++ b/units/systemd-journald.service.in
@@ -21,6 +21,7 @@ Sockets=systemd-journald.socket systemd-journald-dev-log.socket
ExecStart=@rootlibexecdir@/systemd-journald
Restart=always
RestartSec=0
+RestrictSUIDSGID=yes
StandardOutput=null
WatchdogSec=3min
FileDescriptorStoreMax=4224
diff --git a/units/systemd-localed.service.in b/units/systemd-localed.service.in
index ce043db154..b87d60e9eb 100644
--- a/units/systemd-localed.service.in
+++ b/units/systemd-localed.service.in
@@ -29,6 +29,7 @@ MemoryDenyWriteExecute=yes
RestrictRealtime=yes
RestrictNamespaces=yes
RestrictAddressFamilies=AF_UNIX
+RestrictSUIDSGID=yes
SystemCallFilter=@system-service
SystemCallErrorNumber=EPERM
SystemCallArchitectures=native
diff --git a/units/systemd-logind.service.in b/units/systemd-logind.service.in
index 6953fac55b..086338e03b 100644
--- a/units/systemd-logind.service.in
+++ b/units/systemd-logind.service.in
@@ -30,6 +30,7 @@ MemoryDenyWriteExecute=yes
RestrictRealtime=yes
RestrictNamespaces=yes
RestrictAddressFamilies=AF_UNIX AF_NETLINK
+RestrictSUIDSGID=yes
SystemCallFilter=@system-service
SystemCallErrorNumber=EPERM
SystemCallArchitectures=native
diff --git a/units/systemd-networkd.service.in b/units/systemd-networkd.service.in
index 371ab3a9cf..a0f34ac738 100644
--- a/units/systemd-networkd.service.in
+++ b/units/systemd-networkd.service.in
@@ -39,6 +39,7 @@ SystemCallFilter=@system-service
SystemCallErrorNumber=EPERM
SystemCallArchitectures=native
LockPersonality=yes
+RestrictSUIDSGID=yes
RuntimeDirectory=systemd/netif
RuntimeDirectoryPreserve=yes
diff --git a/units/systemd-resolved.service.in b/units/systemd-resolved.service.in
index aaed406ab2..6c2ad5ca86 100644
--- a/units/systemd-resolved.service.in
+++ b/units/systemd-resolved.service.in
@@ -41,6 +41,7 @@ SystemCallFilter=@system-service
SystemCallErrorNumber=EPERM
SystemCallArchitectures=native
LockPersonality=yes
+RestrictSUIDSGID=yes
RuntimeDirectory=systemd/resolve
RuntimeDirectoryPreserve=yes
diff --git a/units/systemd-timedated.service.in b/units/systemd-timedated.service.in
index 662b39557a..1da2bc4bb0 100644
--- a/units/systemd-timedated.service.in
+++ b/units/systemd-timedated.service.in
@@ -27,6 +27,7 @@ MemoryDenyWriteExecute=yes
RestrictRealtime=yes
RestrictNamespaces=yes
RestrictAddressFamilies=AF_UNIX
+RestrictSUIDSGID=yes
SystemCallFilter=@system-service @clock
SystemCallErrorNumber=EPERM
SystemCallArchitectures=native
diff --git a/units/systemd-timesyncd.service.in b/units/systemd-timesyncd.service.in
index 4a490b6e16..c2b9551726 100644
--- a/units/systemd-timesyncd.service.in
+++ b/units/systemd-timesyncd.service.in
@@ -37,6 +37,7 @@ MemoryDenyWriteExecute=yes
RestrictRealtime=yes
RestrictNamespaces=yes
RestrictAddressFamilies=AF_UNIX AF_INET AF_INET6
+RestrictSUIDSGID=yes
RuntimeDirectory=systemd/timesync
SystemCallFilter=@system-service @clock
SystemCallErrorNumber=EPERM
diff --git a/units/systemd-udevd.service.in b/units/systemd-udevd.service.in
index fd9ead3bb8..970cf0f290 100644
--- a/units/systemd-udevd.service.in
+++ b/units/systemd-udevd.service.in
@@ -27,8 +27,9 @@ WatchdogSec=3min
TasksMax=infinity
PrivateMounts=yes
MemoryDenyWriteExecute=yes
-RestrictRealtime=yes
RestrictAddressFamilies=AF_UNIX AF_NETLINK AF_INET AF_INET6
+RestrictRealtime=yes
+RestrictSUIDSGID=yes
SystemCallFilter=@system-service @module @raw-io
SystemCallErrorNumber=EPERM
SystemCallArchitectures=native