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netfilter: log: Check param to avoid overflow in nf_log_set

Browse source 
The nf_log_set is an interface function, so it should do the strict sanity
check of parameters. Convert the return value of nf_log_set as int instead
of void. When the pf is invalid, return -EOPNOTSUPP.

Signed-off-by: Gao Feng <[email protected]>
Signed-off-by: Pablo Neira Ayuso <[email protected]>
This commit is contained in:
Gao Feng 2016-08-29 18:25:28 +08:00 • committed by Pablo Neira Ayuso
commit 779994fa36
6 changed files with 10 additions and 13 deletions
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3
net/ipv4/netfilter/nf_log_arp.c
View file

@ -111,8 +111,7 @@ static struct nf_logger nf_arp_logger __read_mostly = {
static int __net_init nf_log_arp_net_init(struct net *net)
{
nf_log_set(net, NFPROTO_ARP, &nf_arp_logger);
return 0;
return nf_log_set(net, NFPROTO_ARP, &nf_arp_logger);
}
static void __net_exit nf_log_arp_net_exit(struct net *net)

3
net/ipv4/netfilter/nf_log_ipv4.c
View file

@ -347,8 +347,7 @@ static struct nf_logger nf_ip_logger __read_mostly = {
static int __net_init nf_log_ipv4_net_init(struct net *net)
{
nf_log_set(net, NFPROTO_IPV4, &nf_ip_logger);
return 0;
return nf_log_set(net, NFPROTO_IPV4, &nf_ip_logger);
}
static void __net_exit nf_log_ipv4_net_exit(struct net *net)