老哥，解决没？我也碰到了，不过解法很简单
diff --git a/scripts/dtc/updatetree.c b/scripts/dtc/updatetree.c
index 74c621e1..e2159bf6 100644
--- a/scripts/dtc/updatetree.c
+++ b/scripts/dtc/updatetree.c
@@ -432,7 +432,7 @@ void create_pinconf_node(const char *section_name,
phandle = sunxi_dt_add_new_node_to_pinctrl(pinctrl, section_name, ep->name, gpio_name, value, dti);
if (phandle) {
d_pinctrl_x = data_append_cell(prop->val, phandle);
- propname = malloc(strlen(prop->name));
+ propname = malloc(strlen(prop->name) + 1);
strcpy(propname, prop->name);
delete_property(prop);
pinctrl_x = build_property(propname, d_pinctrl_x);