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netfilter: ipset: fix crash if IPSET_CMD_NONE command is sent

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This patch fixes a crash if that ipset command is sent over nfnetlink.

Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
Acked-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This commit is contained in:
Tomasz Bursztyka 2012-06-28 02:57:48 +00:00 committed by Pablo Neira Ayuso
parent a2da399823
commit d31f4d448f
1 changed files with 12 additions and 0 deletions
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12
net/netfilter/ipset/ip_set_core.c
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@ -639,6 +639,14 @@ find_free_id(const char *name, ip_set_id_t *index, struct ip_set **set)
return 0;
}
static int
ip_set_none(struct sock *ctnl, struct sk_buff *skb,
const struct nlmsghdr *nlh,
const struct nlattr * const attr[])
{
return -EOPNOTSUPP;
}
static int
ip_set_create(struct sock *ctnl, struct sk_buff *skb,
const struct nlmsghdr *nlh,
@ -1539,6 +1547,10 @@ nlmsg_failure:
}
static const struct nfnl_callback ip_set_netlink_subsys_cb[IPSET_MSG_MAX] = {
[IPSET_CMD_NONE] = {
.call = ip_set_none,
.attr_count = IPSET_ATTR_CMD_MAX,
},
[IPSET_CMD_CREATE] = {
.call = ip_set_create,
.attr_count = IPSET_ATTR_CMD_MAX,