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netfilter: synproxy: fix conntrackd interaction

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This patch fixes the creation of connection tracking entry from
netlink when synproxy is used. It was missing the addition of
the synproxy extension.

This was causing kernel crashes when a conntrack entry created by
conntrackd was used after the switch of traffic from active node
to the passive node.

Signed-off-by: Eric Leblond <eric@regit.org>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This commit is contained in:
Eric Leblond 2017-05-11 18:56:38 +02:00 committed by Pablo Neira Ayuso
parent 324318f024
commit 87e94dbc21
1 changed files with 4 additions and 0 deletions
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4
net/netfilter/nf_conntrack_netlink.c
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@ -45,6 +45,8 @@
#include <net/netfilter/nf_conntrack_zones.h>
#include <net/netfilter/nf_conntrack_timestamp.h>
#include <net/netfilter/nf_conntrack_labels.h>
#include <net/netfilter/nf_conntrack_seqadj.h>
#include <net/netfilter/nf_conntrack_synproxy.h>
#ifdef CONFIG_NF_NAT_NEEDED
#include <net/netfilter/nf_nat_core.h>
#include <net/netfilter/nf_nat_l4proto.h>
@ -1827,6 +1829,8 @@ ctnetlink_create_conntrack(struct net *net,
nf_ct_tstamp_ext_add(ct, GFP_ATOMIC);
nf_ct_ecache_ext_add(ct, 0, 0, GFP_ATOMIC);
nf_ct_labels_ext_add(ct);
nfct_seqadj_ext_add(ct);
nfct_synproxy_ext_add(ct);
/* we must add conntrack extensions before confirmation. */
ct->status |= IPS_CONFIRMED;