From: Pablo Neira Ayuso <pablo@netfilter.org>
Date: Mon, 20 Jun 2016 22:12:15 +0000 (+0200)
Subject: netfilter: nft_rbtree: check for next generation when deactivating elements
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=4e5001651f5e488eac378ebabc5bde2a8f1ea861;p=linux-beck.git

netfilter: nft_rbtree: check for next generation when deactivating elements

set->ops->deactivate() is invoked from nft_del_setelem() that happens
from the transaction path, so we have to check if the object is active
in the next generation, not the current.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---

diff --git a/net/netfilter/nft_rbtree.c b/net/netfilter/nft_rbtree.c
index f762094af7c1..86fbe5e68d28 100644
--- a/net/netfilter/nft_rbtree.c
+++ b/net/netfilter/nft_rbtree.c
@@ -170,7 +170,7 @@ static void *nft_rbtree_deactivate(const struct nft_set *set,
 	const struct nft_rbtree *priv = nft_set_priv(set);
 	const struct rb_node *parent = priv->root.rb_node;
 	struct nft_rbtree_elem *rbe, *this = elem->priv;
-	u8 genmask = nft_genmask_cur(read_pnet(&set->pnet));
+	u8 genmask = nft_genmask_next(read_pnet(&set->pnet));
 	int d;
 
 	while (parent != NULL) {