systemd/SOURCES/0004-Avoid-tmp-being-mounted-as-tmpfs-without-the-user-s-.patch
2022-05-17 18:26:55 +00:00

46 lines
1.8 KiB
Diff

From c9ca30a1debbdf24ab6fcbe1aa1ec7ac5f222cb4 Mon Sep 17 00:00:00 2001
From: Jan Synacek <jsynacek@redhat.com>
Date: Tue, 15 May 2018 09:24:20 +0200
Subject: [PATCH] Avoid /tmp being mounted as tmpfs without the user's will
Ensure PrivateTmp doesn't require tmpfs through tmp.mount, but rather
adds an After relationship.
RHEL-only
Resolves: #1959826
---
src/core/unit.c | 7 +------
units/basic.target | 3 ++-
2 files changed, 3 insertions(+), 7 deletions(-)
diff --git a/src/core/unit.c b/src/core/unit.c
index b1f1f5c82c..3a8251e2b8 100644
--- a/src/core/unit.c
+++ b/src/core/unit.c
@@ -1280,12 +1280,7 @@ int unit_add_exec_dependencies(Unit *u, ExecContext *c) {
}
if (c->private_tmp) {
-
- /* FIXME: for now we make a special case for /tmp and add a weak dependency on
- * tmp.mount so /tmp being masked is supported. However there's no reason to treat
- * /tmp specifically and masking other mount units should be handled more
- * gracefully too, see PR#16894. */
- r = unit_add_two_dependencies_by_name(u, UNIT_AFTER, UNIT_WANTS, "tmp.mount", true, UNIT_DEPENDENCY_FILE);
+ r = unit_add_dependency_by_name(u, UNIT_AFTER, "tmp.mount", true, UNIT_DEPENDENCY_FILE);
if (r < 0)
return r;
diff --git a/units/basic.target b/units/basic.target
index d8cdd5ac14..9eae0782a2 100644
--- a/units/basic.target
+++ b/units/basic.target
@@ -19,4 +19,5 @@ After=sysinit.target sockets.target paths.target slices.target tmp.mount
# require /var and /var/tmp, but only add a Wants= type dependency on /tmp, as
# we support that unit being masked, and this should not be considered an error.
RequiresMountsFor=/var /var/tmp
-Wants=tmp.mount
+# RHEL-only: Disable /tmp on tmpfs.
+#Wants=tmp.mount