From: Johannes Berg Date: Sat, 23 Feb 2013 00:14:20 +0000 (+0100) Subject: mac80211: flush keys when stopping AP X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=7b4396bd6868f3d665c5f4cb53a9bdde5a2f4bf2;p=linux-beck.git mac80211: flush keys when stopping AP Since hostapd will remove keys this isn't usually an issue, but we shouldn't leak keys to the next BSS started on the same interface. For VLANs this also fixes a bug, keys that aren't removed would otherwise be leaked. Signed-off-by: Johannes Berg --- diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c index 8baa561c8f5b..9d708f9e246e 100644 --- a/net/mac80211/cfg.c +++ b/net/mac80211/cfg.c @@ -1035,9 +1035,12 @@ static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev) sta_info_flush_defer(vlan); sta_info_flush_defer(sdata); rcu_barrier(); - list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) + list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) { sta_info_flush_cleanup(vlan); + ieee80211_free_keys(vlan); + } sta_info_flush_cleanup(sdata); + ieee80211_free_keys(sdata); sdata->vif.bss_conf.enable_beacon = false; clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state); diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c index 8e0bf34f3f68..290de4d99697 100644 --- a/net/mac80211/iface.c +++ b/net/mac80211/iface.c @@ -840,7 +840,7 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata, /* * Free all remaining keys, there shouldn't be any, - * except maybe group keys in AP more or WDS? + * except maybe in WDS mode? */ ieee80211_free_keys(sdata);