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@@ -1564,12 +1564,17 @@ static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
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struct cfg80211_registered_device *dev;
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s64 filter_wiphy = -1;
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bool split = false;
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- struct nlattr **tb = nl80211_fam.attrbuf;
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+ struct nlattr **tb;
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int res;
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+ /* will be zeroed in nlmsg_parse() */
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+ tb = kmalloc(sizeof(*tb) * (NL80211_ATTR_MAX + 1), GFP_KERNEL);
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+ if (!tb)
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+ return -ENOMEM;
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+
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mutex_lock(&cfg80211_mutex);
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res = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
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- tb, nl80211_fam.maxattr, nl80211_policy);
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+ tb, NL80211_ATTR_MAX, nl80211_policy);
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if (res == 0) {
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split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
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if (tb[NL80211_ATTR_WIPHY])
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@@ -1583,6 +1588,7 @@ static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
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netdev = dev_get_by_index(sock_net(skb->sk), ifidx);
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if (!netdev) {
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mutex_unlock(&cfg80211_mutex);
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+ kfree(tb);
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return -ENODEV;
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}
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if (netdev->ieee80211_ptr) {
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@@ -1593,6 +1599,7 @@ static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
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dev_put(netdev);
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}
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}
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+ kfree(tb);
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list_for_each_entry(dev, &cfg80211_rdev_list, list) {
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if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk)))
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