diff options
Diffstat (limited to 'net/netfilter')
| -rw-r--r-- | net/netfilter/nf_nat_redirect.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/net/netfilter/nf_nat_redirect.c b/net/netfilter/nf_nat_redirect.c index 78a9e6454ff3..8598e80968e0 100644 --- a/net/netfilter/nf_nat_redirect.c +++ b/net/netfilter/nf_nat_redirect.c @@ -47,15 +47,17 @@ nf_nat_redirect_ipv4(struct sk_buff *skb, if (hooknum == NF_INET_LOCAL_OUT) { newdst = htonl(0x7F000001); } else { - struct in_device *indev; - struct in_ifaddr *ifa; + const struct in_device *indev; newdst = 0; indev = __in_dev_get_rcu(skb->dev); - if (indev && indev->ifa_list) { - ifa = indev->ifa_list; - newdst = ifa->ifa_local; + if (indev) { + const struct in_ifaddr *ifa; + + ifa = rcu_dereference(indev->ifa_list); + if (ifa) + newdst = ifa->ifa_local; } if (!newdst) |