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-rw-r--r--src/systemd-nspawn/nspawn-cgroup.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/src/systemd-nspawn/nspawn-cgroup.c b/src/systemd-nspawn/nspawn-cgroup.c
index a75c822f67..782966d31b 100644
--- a/src/systemd-nspawn/nspawn-cgroup.c
+++ b/src/systemd-nspawn/nspawn-cgroup.c
@@ -27,6 +27,7 @@
#include "systemd-basic/rm-rf.h"
#include "systemd-basic/string-util.h"
#include "systemd-basic/strv.h"
+#include "systemd-basic/user-util.h"
#include "systemd-basic/util.h"
#include "nspawn-cgroup.h"
@@ -59,6 +60,12 @@ int chown_cgroup(pid_t pid, uid_t uid_shift) {
_cleanup_free_ char *path = NULL, *fs = NULL;
int r;
+ /* If uid_shift == UID_INVALID, then chown_cgroup_path() is a no-op, and there isn't really a point to actually
+ * doing any of this work. Of course, it would still be "safe" to continue, just pointless; and another
+ * opportunity for cgroup-util to screw up on non-systemd systems. */
+ if (uid_shift == UID_INVALID)
+ return 0;
+
r = cg_pid_get_path(NULL, pid, &path);
if (r < 0)
return log_error_errno(r, "Failed to get host cgroup of the container: %m");