From 7cbf9d017dbb5e3276de7d527925d42d4c11e732 Mon Sep 17 00:00:00 2001 From: Marco Porsch Date: Fri, 1 Mar 2013 16:01:18 +0100 Subject: [PATCH] mac80211: fix oops on mesh PS broadcast forwarding Introduced with de74a1d9032f4d37ea453ad2a647e1aff4cd2591 "mac80211: fix WPA with VLAN on AP side with ps-sta". Apparently overwrites the sdata pointer with non-valid data in the case of mesh. Fix this by checking for IFTYPE_AP_VLAN. Signed-off-by: Marco Porsch Signed-off-by: Johannes Berg --- net/mac80211/tx.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c index c592a413bad93..0d74f24595850 100644 --- a/net/mac80211/tx.c +++ b/net/mac80211/tx.c @@ -2755,7 +2755,8 @@ ieee80211_get_buffered_bc(struct ieee80211_hw *hw, cpu_to_le16(IEEE80211_FCTL_MOREDATA); } - sdata = IEEE80211_DEV_TO_SUB_IF(skb->dev); + if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN) + sdata = IEEE80211_DEV_TO_SUB_IF(skb->dev); if (!ieee80211_tx_prepare(sdata, &tx, skb)) break; dev_kfree_skb_any(skb);