mac80211: Fix regression that allowed mpaths between non-peers. (97091317) · Commits · 戴 / test

net/mac80211/mesh_hwmp.c

+9 −0

Original line number	Diff line number	Diff line
		@@ -789,11 +789,20 @@ void mesh_rx_path_sel_frame(struct ieee80211_sub_if_data *sdata,
		struct ieee802_11_elems elems;
		size_t baselen;
		u32 last_hop_metric;
		struct sta_info *sta;

		/* need action_code */
		if (len < IEEE80211_MIN_ACTION_SIZE + 1)
		return;

		rcu_read_lock();
		sta = sta_info_get(sdata, mgmt->sa);
		if (!sta \|\| sta->plink_state != NL80211_PLINK_ESTAB) {
		rcu_read_unlock();
		return;
		}
		rcu_read_unlock();

		baselen = (u8 ) mgmt->u.action.u.mesh_action.variable - (u8 ) mgmt;
		ieee802_11_parse_elems(mgmt->u.action.u.mesh_action.variable,
		len - baselen, &elems);