From 24c509b2e2f1661ce9500fc7e32647113e62d7e3 Mon Sep 17 00:00:00 2001 From: Florent Fourcot Date: Mon, 10 Jun 2019 12:28:58 +0200 Subject: [PATCH] netfilter: ipset: remove useless memset() calls One of the memset call is buggy: it does not erase full array, but only pointer size. Moreover, after a check, first step of nla_parse_nested/nla_parse is to erase tb array as well. We can remove both calls safely. Signed-off-by: Florent Fourcot Signed-off-by: Jozsef Kadlecsik --- net/netfilter/ipset/ip_set_core.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/net/netfilter/ipset/ip_set_core.c b/net/netfilter/ipset/ip_set_core.c index 3f4a4936f63c..faddcf398b73 100644 --- a/net/netfilter/ipset/ip_set_core.c +++ b/net/netfilter/ipset/ip_set_core.c @@ -1599,7 +1599,6 @@ static int ip_set_uadd(struct net *net, struct sock *ctnl, struct sk_buff *skb, int nla_rem; nla_for_each_nested(nla, attr[IPSET_ATTR_ADT], nla_rem) { - memset(tb, 0, sizeof(tb)); if (nla_type(nla) != IPSET_ATTR_DATA || !flag_nested(nla) || nla_parse_nested_deprecated(tb, IPSET_ATTR_ADT_MAX, nla, set->type->adt_policy, NULL)) @@ -1651,7 +1650,6 @@ static int ip_set_udel(struct net *net, struct sock *ctnl, struct sk_buff *skb, int nla_rem; nla_for_each_nested(nla, attr[IPSET_ATTR_ADT], nla_rem) { - memset(tb, 0, sizeof(*tb)); if (nla_type(nla) != IPSET_ATTR_DATA || !flag_nested(nla) || nla_parse_nested_deprecated(tb, IPSET_ATTR_ADT_MAX, nla, set->type->adt_policy, NULL)) -- 2.30.2