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netfilter: nft_rbtree: check for next generation when deactivating elements

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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>
This commit is contained in:
Pablo Neira Ayuso 2016-06-21 00:12:15 +02:00
parent 37a9cc5255
commit 4e5001651f
1 changed files with 1 additions and 1 deletions
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2
net/netfilter/nft_rbtree.c
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@ -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) {