diff options
Diffstat (limited to 'net')
| -rw-r--r-- | net/netfilter/core.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/net/netfilter/core.c b/net/netfilter/core.c index c8faf8102394..67b74287535d 100644 --- a/net/netfilter/core.c +++ b/net/netfilter/core.c @@ -89,6 +89,11 @@ int nf_register_net_hook(struct net *net, const struct nf_hook_ops *reg) struct nf_hook_entry *entry; struct nf_hook_ops *elem; + if (reg->pf == NFPROTO_NETDEV && + (reg->hooknum != NF_NETDEV_INGRESS || + !reg->dev || dev_net(reg->dev) != net)) + return -EINVAL; + entry = kmalloc(sizeof(*entry), GFP_KERNEL); if (!entry) return -ENOMEM; |