* [RFC/PATCH] Add hardening settings to fstrim.service
@ 2018-11-12 20:48 Andreas Henriksson
2018-11-22 10:23 ` Karel Zak
0 siblings, 1 reply; 2+ messages in thread
From: Andreas Henriksson @ 2018-11-12 20:48 UTC (permalink / raw)
To: util-linux; +Cc: Andreas Henriksson
This limits what the fstrim process has access to when it runs.
PrivateUsers can't be enabled because of:
"If this mode is enabled, all unit processes are run without privileges
in the host user namespace[...]"
Further improving this with additional option or making
things even tighter is most likely possible.
Signed-off-by: Andreas Henriksson <andreas@fatal.se>
---
sys-utils/fstrim.service.in | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/sys-utils/fstrim.service.in b/sys-utils/fstrim.service.in
index 2d5daf99d..0bab91a9c 100644
--- a/sys-utils/fstrim.service.in
+++ b/sys-utils/fstrim.service.in
@@ -5,3 +5,13 @@ Documentation=man:fstrim(8)
[Service]
Type=oneshot
ExecStart=@sbindir@/fstrim -Av
+ProtectSystem=strict
+ProtectHome=yes
+PrivateDevices=no
+PrivateNetwork=yes
+PrivateUsers=no
+ProtectKernelTunables=yes
+ProtectKernelModules=yes
+ProtectControlGroups=yes
+MemoryDenyWriteExecute=yes
+SystemCallFilter=@default @file-system @basic-io @system-service
--
2.19.1
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [RFC/PATCH] Add hardening settings to fstrim.service
2018-11-12 20:48 [RFC/PATCH] Add hardening settings to fstrim.service Andreas Henriksson
@ 2018-11-22 10:23 ` Karel Zak
0 siblings, 0 replies; 2+ messages in thread
From: Karel Zak @ 2018-11-22 10:23 UTC (permalink / raw)
To: Andreas Henriksson; +Cc: util-linux
On Mon, Nov 12, 2018 at 09:48:43PM +0100, Andreas Henriksson wrote:
> --- a/sys-utils/fstrim.service.in
> +++ b/sys-utils/fstrim.service.in
Applied, thanks.
--
Karel Zak <kzak@redhat.com>
http://karelzak.blogspot.com
^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~2018-11-22 10:23 UTC | newest]
Thread overview: 2+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2018-11-12 20:48 [RFC/PATCH] Add hardening settings to fstrim.service Andreas Henriksson
2018-11-22 10:23 ` Karel Zak
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).