diff --git a/fs/resctrl/rdtgroup.c b/fs/resctrl/rdtgroup.c
index 08d58c4e9acb..5dcbb0a964e8 100644
--- a/fs/resctrl/rdtgroup.c
+++ b/fs/resctrl/rdtgroup.c
@@ -979,10 +979,13 @@ static int rdt_last_cmd_status_show(struct kernfs_open_file *of,
 	if (!info_kn_lock(of->kn))
 		return -ENOENT;
 	len = seq_buf_used(&last_cmd_status);
-	if (len)
+	if (len) {
 		seq_printf(seq, "%.*s", len, last_cmd_status_buf);
-	else
+		if (seq_buf_has_overflowed(&last_cmd_status))
+			seq_puts(seq, "[truncated]\n");
+	} else {
 		seq_puts(seq, "ok\n");
+	}
 	info_kn_unlock(of->kn);
 	return 0;
 }