X-Git-Url: http://git.cascardo.eti.br/?a=blobdiff_plain;f=net%2Fnetfilter%2Fnf_conntrack_core.c;h=9f530adad10d54a9277a9fbfdee4236055e3f99a;hb=25474279e8fc6f15eebf89f43ac9ceedac475f57;hp=f204274a9b6b9dfaa0bc66d69c15d85255a87a17;hpb=88c087109b5fedaf9b61839d08543fdaf9d5ec39;p=cascardo%2Flinux.git

diff --git a/net/netfilter/nf_conntrack_core.c b/net/netfilter/nf_conntrack_core.c
index f204274a9b6b..9f530adad10d 100644
--- a/net/netfilter/nf_conntrack_core.c
+++ b/net/netfilter/nf_conntrack_core.c
@@ -646,6 +646,7 @@ static int nf_ct_resolve_clash(struct net *net, struct sk_buff *skb,
 
 	l4proto = __nf_ct_l4proto_find(nf_ct_l3num(ct), nf_ct_protonum(ct));
 	if (l4proto->allow_clash &&
+	    !nfct_nat(ct) &&
 	    !nf_ct_is_dying(ct) &&
 	    atomic_inc_not_zero(&ct->ct_general.use)) {
 		nf_ct_acct_merge(ct, ctinfo, (struct nf_conn *)skb->nfct);
@@ -1601,8 +1602,15 @@ void *nf_ct_alloc_hashtable(unsigned int *sizep, int nulls)
 	unsigned int nr_slots, i;
 	size_t sz;
 
+	if (*sizep > (UINT_MAX / sizeof(struct hlist_nulls_head)))
+		return NULL;
+
 	BUILD_BUG_ON(sizeof(struct hlist_nulls_head) != sizeof(struct hlist_head));
 	nr_slots = *sizep = roundup(*sizep, PAGE_SIZE / sizeof(struct hlist_nulls_head));
+
+	if (nr_slots > (UINT_MAX / sizeof(struct hlist_nulls_head)))
+		return NULL;
+
 	sz = nr_slots * sizeof(struct hlist_nulls_head);
 	hash = (void *)__get_free_pages(GFP_KERNEL | __GFP_NOWARN | __GFP_ZERO,
 					get_order(sz));