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