From: Pablo Neira Ayuso <pablo@netfilter.org>
To: netfilter-devel@vger.kernel.org
Cc: davem@davemloft.net, netdev@vger.kernel.org
Subject: [PATCH 02/26] netfilter: ipset: remove useless memset() calls
Date: Tue, 25 Jun 2019 02:12:09 +0200 [thread overview]
Message-ID: <20190625001233.22057-3-pablo@netfilter.org> (raw)
In-Reply-To: <20190625001233.22057-1-pablo@netfilter.org>
From: Florent Fourcot <florent.fourcot@wifirst.fr>
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 <florent.fourcot@wifirst.fr>
Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
---
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))
--
2.11.0
next prev parent reply other threads:[~2019-06-25 0:14 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-25 0:12 [PATCH 00/26] Netfilter updates for net-next Pablo Neira Ayuso
2019-06-25 0:12 ` [PATCH 01/26] netfilter: ipv6: Fix undefined symbol nf_ct_frag6_gather Pablo Neira Ayuso
2019-06-25 0:12 ` Pablo Neira Ayuso [this message]
2019-06-25 0:12 ` [PATCH 03/26] netfilter: ipset: merge uadd and udel functions Pablo Neira Ayuso
2019-06-25 0:12 ` [PATCH 04/26] netfilter: ipset: fix a missing check of nla_parse Pablo Neira Ayuso
2019-06-25 0:12 ` [PATCH 05/26] netfilter: ipset: Fix the last missing check of nla_parse_deprecated() Pablo Neira Ayuso
2019-06-25 0:12 ` [PATCH 06/26] netfilter: ipset: Fix error path in set_target_v3_checkentry() Pablo Neira Ayuso
2019-06-25 0:12 ` [PATCH 07/26] ipset: Fix memory accounting for hash types on resize Pablo Neira Ayuso
2019-06-25 0:12 ` [PATCH 08/26] Update my email address Pablo Neira Ayuso
2019-06-25 0:12 ` [PATCH 09/26] netfilter: nft_ct: add ct expectations support Pablo Neira Ayuso
2019-06-25 0:12 ` [PATCH 10/26] netfilter: conntrack: small conntrack lookup optimization Pablo Neira Ayuso
2019-06-25 0:12 ` [PATCH 11/26] netfilter: xt_owner: bail out with EINVAL in case of unsupported flags Pablo Neira Ayuso
2019-06-25 0:12 ` [PATCH 12/26] netfilter: bridge: port sysctls to use brnf_net Pablo Neira Ayuso
2019-06-25 0:12 ` [PATCH 13/26] netfilter: bridge: namespace bridge netfilter sysctls Pablo Neira Ayuso
2019-06-25 0:12 ` [PATCH 14/26] netfilter: synproxy: add common uapi for SYNPROXY infrastructure Pablo Neira Ayuso
2019-06-25 0:12 ` [PATCH 15/26] netfilter: synproxy: remove module dependency on IPv6 SYNPROXY Pablo Neira Ayuso
2019-06-25 0:12 ` [PATCH 16/26] netfilter: synproxy: extract SYNPROXY infrastructure from {ipt, ip6t}_SYNPROXY Pablo Neira Ayuso
2019-06-25 0:12 ` [PATCH 17/26] netfilter: synproxy: ensure zero is returned on non-error return path Pablo Neira Ayuso
2019-06-25 0:12 ` [PATCH 18/26] netfilter: nft_ct: fix null pointer in ct expectations support Pablo Neira Ayuso
2019-06-25 0:12 ` [PATCH 19/26] netfilter: nf_tables: enable set expiration time for set elements Pablo Neira Ayuso
2019-06-25 0:12 ` [PATCH 20/26] netfilter: synproxy: fix building syncookie calls Pablo Neira Ayuso
2019-06-25 0:12 ` [PATCH 21/26] netfilter: synproxy: use nf_cookie_v6_check() from core Pablo Neira Ayuso
2019-06-25 0:12 ` [PATCH 22/26] netfilter: bridge: prevent UAF in brnf_exit_net() Pablo Neira Ayuso
2019-06-25 0:12 ` [PATCH 23/26] netfilter: fix nf_conntrack_bridge/ipv6 link error Pablo Neira Ayuso
2019-06-25 0:12 ` [PATCH 24/26] netfilter: bridge: Fix non-untagged fragment packet Pablo Neira Ayuso
2019-06-25 0:12 ` [PATCH 25/26] netfilter: synproxy: fix manual bump of the reference counter Pablo Neira Ayuso
2019-06-25 0:12 ` [PATCH 26/26] netfilter: nf_tables: add support for matching IPv4 options Pablo Neira Ayuso
2019-06-25 19:46 ` [PATCH 00/26] Netfilter updates for net-next David Miller
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