From: Jesus Fernandez Manzano <jesus.manzano@galgus.net>
Date: Tue, 21 Sep 2021 10:49:30 +0000 (+0200)
Subject: hostapd: fix segfault when deinit mesh ifaces
X-Git-Tag: v22.03.0-rc1~1723
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=5269c47e8db549695ceaf6a19afdd0cb90074622;p=openwrt%2Fopenwrt.git

hostapd: fix segfault when deinit mesh ifaces

In hostapd_ubus_add_bss(), ubus objects are not registered for mesh
interfaces. This provokes a segfault when accessing the ubus object in
mesh deinit.

This commit adds the same condition to hostapd_ubus_free_bss() for
discarding those mesh interfaces.

Signed-off-by: Jesus Fernandez Manzano <jesus.manzano@galgus.net>
---

diff --git a/package/network/services/hostapd/src/src/ap/ubus.c b/package/network/services/hostapd/src/src/ap/ubus.c
index 09b25a29e5..367e1b652b 100644
--- a/package/network/services/hostapd/src/src/ap/ubus.c
+++ b/package/network/services/hostapd/src/src/ap/ubus.c
@@ -1498,6 +1498,11 @@ void hostapd_ubus_free_bss(struct hostapd_data *hapd)
 	struct ubus_object *obj = &hapd->ubus.obj;
 	char *name = (char *) obj->name;
 
+#ifdef CONFIG_MESH
+	if (hapd->conf->mesh & MESH_ENABLED)
+		return;
+#endif
+
 	if (!ctx)
 		return;