Merge branch 'security' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6

* 'security' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6:
  mac80211: fix spurious delBA handling
  mac80211: fix two remote exploits

1 files changed, 8 insertions, 9 deletions

diff --git a/net/mac80211/agg-tx.c b/net/mac80211/agg-tx.c
index 206fd82f0c76..89e238b001de 100644
--- a/net/mac80211/agg-tx.c
+++ b/net/mac80211/agg-tx.c
@@ -123,13 +123,18 @@ void ieee80211_send_bar(struct ieee80211_sub_if_data *sdata, u8 *ra, u16 tid, u1
         ieee80211_tx_skb(sdata, skb, 0);
 }
 
-static int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
-                                           enum ieee80211_back_parties initiator)
+int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
+                                    enum ieee80211_back_parties initiator)
 {
         struct ieee80211_local *local = sta->local;
         int ret;
         u8 *state;
 
+#ifdef CONFIG_MAC80211_HT_DEBUG
+        printk(KERN_DEBUG "Tx BA session stop requested for %pM tid %u\n",
+               sta->sta.addr, tid);
+#endif /* CONFIG_MAC80211_HT_DEBUG */
+
         state = &sta->ampdu_mlme.tid_state_tx[tid];
 
         if (*state == HT_AGG_STATE_OPERATIONAL)
@@ -143,7 +148,6 @@ static int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
 
         /* HW shall not deny going back to legacy */
         if (WARN_ON(ret)) {
-                *state = HT_AGG_STATE_OPERATIONAL;
                 /*
                  * We may have pending packets get stuck in this case...
                  * Not bothering with a workaround for now.
@@ -525,11 +529,6 @@ int __ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
                 goto unlock;
         }
 
-#ifdef CONFIG_MAC80211_HT_DEBUG
-        printk(KERN_DEBUG "Tx BA session stop requested for %pM tid %u\n",
-               sta->sta.addr, tid);
-#endif /* CONFIG_MAC80211_HT_DEBUG */
-
         ret = ___ieee80211_stop_tx_ba_session(sta, tid, initiator);
 
  unlock:
@@ -545,7 +544,7 @@ int ieee80211_stop_tx_ba_session(struct ieee80211_hw *hw,
         struct sta_info *sta;
         int ret = 0;
 
-        if (WARN_ON(!local->ops->ampdu_action))
+        if (!local->ops->ampdu_action)
                 return -EINVAL;
 
         if (tid >= STA_TID_NUM)