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Commit 18c0ab87 authored by Taehee Yoo's avatar Taehee Yoo Committed by Pablo Neira Ayuso
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netfilter: xt_TEE: add missing code to get interface index in checkentry. 



checkentry(tee_tg_check) should initialize priv->oif from dev if possible.
But only netdevice notifier handler can set that.
Hence priv->oif is always -1 until notifier handler is called.

Fixes: 9e2f6c5d ("netfilter: Rework xt_TEE netdevice notifier")
Signed-off-by: default avatarTaehee Yoo <ap420073@gmail.com>
Signed-off-by: default avatarPablo Neira Ayuso <pablo@netfilter.org>
parent f24d2d4f

net/netfilter/xt_TEE.c

+7 −0
Original line number Diff line number Diff line
@@ -104,6 +104,8 @@ static int tee_tg_check(const struct xt_tgchk_param *par) 
		return -EINVAL;



	if (info->oif[0]) {

		struct net_device *dev;



		if (info->oif[sizeof(info->oif)-1] != '\0')

			return -EINVAL;
@@ -115,6 +117,11 @@ static int tee_tg_check(const struct xt_tgchk_param *par) 
		priv->oif     = -1;

		info->priv    = priv;



		dev = dev_get_by_name(par->net, info->oif);

		if (dev) {

			priv->oif = dev->ifindex;

			dev_put(dev);

		}

		mutex_lock(&tn->lock);

		list_add(&priv->list, &tn->priv_list);

		mutex_unlock(&tn->lock);