1 files changed, 3 insertions, 0 deletions
diff --git a/src/basic/util.c b/src/basic/util.c
index deff68073c..f752595ca1 100644
--- a/src/basic/util.c
+++ b/src/basic/util.c
@@ -4913,6 +4913,9 @@ int container_get_leader(const char *machine, pid_t *pid) {
         assert(machine);
         assert(pid);
 
+        if (!machine_name_is_valid(machine))
+                return -EINVAL;
+
         p = strjoina("/run/systemd/machines/", machine);
         r = parse_env_file(p, NEWLINE, "LEADER", &s, "CLASS", &class, NULL);
         if (r == -ENOENT)