From 9a7872f04cb748e8de743d9136ecd91539d13cb7 Mon Sep 17 00:00:00 2001
From: Gopal Tiwari <gtiwari@redhat.com>
Date: Mon, 8 Jun 2020 19:56:42 +0530
Subject: [PATCH BlueZ 4/4] systemd: More lockdown

From 171d812218883281fed57b57fafd5c18eac441ac Mon Sep 17 00:00:00 2001
From: Bastien Nocera <hadess@hadess.net>
Date: Wed, 13 Sep 2017 15:38:26 +0200

systemd: More lockdown

bluetoothd does not need to execute mapped memory, or real-time
access, so block those.
---
 src/bluetooth.service.in | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/bluetooth.service.in b/src/bluetooth.service.in
index 4daedef2a..f18801866 100644
--- a/src/bluetooth.service.in
+++ b/src/bluetooth.service.in
@@ -22,9 +22,15 @@ ProtectControlGroups=true
 ReadWritePaths=@statedir@
 ReadOnlyPaths=@confdir@
 
+# Execute Mappings
+MemoryDenyWriteExecute=true
+
 # Privilege escalation
 NoNewPrivileges=true
 
+# Real-time
+RestrictRealtime=true
+
 [Install]
 WantedBy=bluetooth.target
 Alias=dbus-org.bluez.service
-- 
2.21.1