net: ipmr/ip6mr: fix potential out-of-bounds vif_table access

[safe/jmp/linux-2.6] / net / mac80211 / key.c

diff --git a/net/mac80211/key.c b/net/mac80211/key.c
index ce26756..8160d9c 100644 (file)
--- a/net/mac80211/key.c
+++ b/net/mac80211/key.c
@@ -67,6 +67,8 @@ static DECLARE_WORK(todo_work, key_todo);
  *
  * @key: key to add to do item for
  * @flag: todo flag(s)
+ *
+ * Must be called with IRQs or softirqs disabled.
  */
 static void add_todo(struct ieee80211_key *key, u32 flag)
 {
@@ -137,12 +139,12 @@ static void ieee80211_key_enable_hw_accel(struct ieee80211_key *key)
                                     struct ieee80211_sub_if_data,
                                     u.ap);
 
-       ret = drv_set_key(key->local, SET_KEY, &sdata->vif, sta, &key->conf);
+       ret = drv_set_key(key->local, SET_KEY, sdata, sta, &key->conf);
 
        if (!ret) {
-               spin_lock(&todo_lock);
+               spin_lock_bh(&todo_lock);
                key->flags |= KEY_FLAG_UPLOADED_TO_HARDWARE;
-               spin_unlock(&todo_lock);
+               spin_unlock_bh(&todo_lock);
        }
 
        if (ret && ret != -ENOSPC && ret != -EOPNOTSUPP)
@@ -164,12 +166,12 @@ static void ieee80211_key_disable_hw_accel(struct ieee80211_key *key)
        if (!key || !key->local->ops->set_key)
                return;
 
-       spin_lock(&todo_lock);
+       spin_lock_bh(&todo_lock);
        if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)) {
-               spin_unlock(&todo_lock);
+               spin_unlock_bh(&todo_lock);
                return;
        }
-       spin_unlock(&todo_lock);
+       spin_unlock_bh(&todo_lock);
 
        sta = get_sta_for_key(key);
        sdata = key->sdata;
@@ -179,7 +181,7 @@ static void ieee80211_key_disable_hw_accel(struct ieee80211_key *key)
                                     struct ieee80211_sub_if_data,
                                     u.ap);
 
-       ret = drv_set_key(key->local, DISABLE_KEY, &sdata->vif,
+       ret = drv_set_key(key->local, DISABLE_KEY, sdata,
                          sta, &key->conf);
 
        if (ret)
@@ -188,9 +190,9 @@ static void ieee80211_key_disable_hw_accel(struct ieee80211_key *key)
                       wiphy_name(key->local->hw.wiphy),
                       key->conf.keyidx, sta ? sta->addr : bcast_addr, ret);
 
-       spin_lock(&todo_lock);
+       spin_lock_bh(&todo_lock);
        key->flags &= ~KEY_FLAG_UPLOADED_TO_HARDWARE;
-       spin_unlock(&todo_lock);
+       spin_unlock_bh(&todo_lock);
 }
 
 static void __ieee80211_set_default_key(struct ieee80211_sub_if_data *sdata,
@@ -419,7 +421,7 @@ void ieee80211_key_link(struct ieee80211_key *key,
                         */
 
                        /* same here, the AP could be using QoS */
-                       ap = sta_info_get(key->local, key->sdata->u.mgd.bssid);
+                       ap = sta_info_get(key->sdata, key->sdata->u.mgd.bssid);
                        if (ap) {
                                if (test_sta_flags(ap, WLAN_STA_WME))
                                        key->conf.flags |=
@@ -437,14 +439,14 @@ void ieee80211_key_link(struct ieee80211_key *key,
 
        __ieee80211_key_replace(sdata, sta, old_key, key);
 
-       spin_unlock_irqrestore(&sdata->local->key_lock, flags);
-
        /* free old key later */
        add_todo(old_key, KEY_FLAG_TODO_DELETE);
 
        add_todo(key, KEY_FLAG_TODO_ADD_DEBUGFS);
-       if (netif_running(sdata->dev))
+       if (ieee80211_sdata_running(sdata))
                add_todo(key, KEY_FLAG_TODO_HWACCEL_ADD);
+
+       spin_unlock_irqrestore(&sdata->local->key_lock, flags);
 }
 
 static void __ieee80211_key_free(struct ieee80211_key *key)
@@ -507,7 +509,7 @@ void ieee80211_enable_keys(struct ieee80211_sub_if_data *sdata)
 {
        ASSERT_RTNL();
 
-       if (WARN_ON(!netif_running(sdata->dev)))
+       if (WARN_ON(!ieee80211_sdata_running(sdata)))
                return;
 
        ieee80211_todo_for_each_key(sdata, KEY_FLAG_TODO_HWACCEL_ADD);
@@ -547,7 +549,7 @@ static void __ieee80211_key_todo(void)
         */
        synchronize_rcu();
 
-       spin_lock(&todo_lock);
+       spin_lock_bh(&todo_lock);
        while (!list_empty(&todo_list)) {
                key = list_first_entry(&todo_list, struct ieee80211_key, todo);
                list_del_init(&key->todo);
@@ -558,7 +560,7 @@ static void __ieee80211_key_todo(void)
                                          KEY_FLAG_TODO_HWACCEL_REMOVE |
                                          KEY_FLAG_TODO_DELETE);
                key->flags &= ~todoflags;
-               spin_unlock(&todo_lock);
+               spin_unlock_bh(&todo_lock);
 
                work_done = false;
 
@@ -591,9 +593,9 @@ static void __ieee80211_key_todo(void)
 
                WARN_ON(!work_done);
 
-               spin_lock(&todo_lock);
+               spin_lock_bh(&todo_lock);
        }
-       spin_unlock(&todo_lock);
+       spin_unlock_bh(&todo_lock);
 }
 
 void ieee80211_key_todo(void)