netfilter: nf_nat_redirect: add missing NULL pointer check

[karo-tx-linux.git] / net / netfilter / nf_nat_redirect.c

diff --git a/net/netfilter/nf_nat_redirect.c b/net/netfilter/nf_nat_redirect.c
index 97b75f9bfbcd6852bdff9ca2d2e218b3539a0f8b..d43869879fcfcea6ca23e3a579bd21f8aa855b10 100644 (file)
--- a/net/netfilter/nf_nat_redirect.c
+++ b/net/netfilter/nf_nat_redirect.c
@@ -55,7 +55,7 @@ nf_nat_redirect_ipv4(struct sk_buff *skb,
 
                rcu_read_lock();
                indev = __in_dev_get_rcu(skb->dev);
-               if (indev != NULL) {
+               if (indev && indev->ifa_list) {
                        ifa = indev->ifa_list;
                        newdst = ifa->ifa_local;
                }