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authorEvgeny Vereshchagin <evvers@ya.ru>2016-12-05 20:14:05 +0300
committerLennart Poettering <lennart@poettering.net>2016-12-05 18:14:05 +0100
commitc9fd987279a462e406fac6c7ade01da7410bdcd6 (patch)
treefb6d1e06a950f96429a8ca4f256156e6e25cb532
parente3a7b04848a438f7b5a9a2bf5d7e0e59c5c49a00 (diff)
nspawn: don't hide --bind=/tmp/* mounts (#4824)
Fixes #4789
-rw-r--r--src/nspawn/nspawn-mount.c2
-rwxr-xr-xtest/TEST-13-NSPAWN-SMOKE/test.sh10
2 files changed, 11 insertions, 1 deletions
diff --git a/src/nspawn/nspawn-mount.c b/src/nspawn/nspawn-mount.c
index c9d5ac419e..aaa64a7ba8 100644
--- a/src/nspawn/nspawn-mount.c
+++ b/src/nspawn/nspawn-mount.c
@@ -550,9 +550,9 @@ int mount_all(const char *dest,
{ NULL, "/proc/sys", NULL, NULL, MS_BIND|MS_RDONLY|MS_NOSUID|MS_NOEXEC|MS_NODEV|MS_REMOUNT, MOUNT_FATAL|MOUNT_IN_USERNS|MOUNT_APPLY_APIVFS_RO }, /* ... then, make it r/o */
{ "/proc/sysrq-trigger", "/proc/sysrq-trigger", NULL, NULL, MS_BIND, MOUNT_IN_USERNS|MOUNT_APPLY_APIVFS_RO }, /* Bind mount first ...*/
{ NULL, "/proc/sysrq-trigger", NULL, NULL, MS_BIND|MS_RDONLY|MS_NOSUID|MS_NOEXEC|MS_NODEV|MS_REMOUNT, MOUNT_IN_USERNS|MOUNT_APPLY_APIVFS_RO }, /* ... then, make it r/o */
- { "tmpfs", "/tmp", "tmpfs", "mode=1777", MS_STRICTATIME, MOUNT_FATAL|MOUNT_IN_USERNS },
/* outer child mounts */
+ { "tmpfs", "/tmp", "tmpfs", "mode=1777", MS_STRICTATIME, MOUNT_FATAL },
{ "tmpfs", "/sys", "tmpfs", "mode=755", MS_NOSUID|MS_NOEXEC|MS_NODEV, MOUNT_FATAL|MOUNT_APPLY_APIVFS_NETNS },
{ "sysfs", "/sys", "sysfs", NULL, MS_RDONLY|MS_NOSUID|MS_NOEXEC|MS_NODEV, MOUNT_FATAL|MOUNT_APPLY_APIVFS_RO }, /* skipped if above was mounted */
{ "sysfs", "/sys", "sysfs", NULL, MS_NOSUID|MS_NOEXEC|MS_NODEV, MOUNT_FATAL }, /* skipped if above was mounted */
diff --git a/test/TEST-13-NSPAWN-SMOKE/test.sh b/test/TEST-13-NSPAWN-SMOKE/test.sh
index 305866ae38..b8b8ec34bd 100755
--- a/test/TEST-13-NSPAWN-SMOKE/test.sh
+++ b/test/TEST-13-NSPAWN-SMOKE/test.sh
@@ -83,6 +83,14 @@ if unshare -U sh -c :; then
is_user_ns_supported=yes
fi
+function check_bind_tmp_path {
+ # https://github.com/systemd/systemd/issues/4789
+ local _root="/var/lib/machines/bind-tmp-path"
+ /create-busybox-container "$_root"
+ >/tmp/bind
+ systemd-nspawn --register=no -D "$_root" --bind=/tmp/bind /bin/sh -c 'test -e /tmp/bind'
+}
+
function run {
if [[ "$1" = "yes" && "$is_v2_supported" = "no" ]]; then
printf "Unified cgroup hierarchy is not supported. Skipping.\n" >&2
@@ -113,6 +121,8 @@ function run {
return 0
}
+check_bind_tmp_path
+
for api_vfs_writable in yes no network; do
run no no $api_vfs_writable
run yes no $api_vfs_writable