Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

[linux-2.6-block.git] / drivers / net / vrf.c

diff --git a/drivers/net/vrf.c b/drivers/net/vrf.c
index 9ce088bb28ab9b6206737984dbe21e7093b28709..9a9fabb900c19e5f7dc483a63f1b71fcd1a96e5a 100644 (file)
--- a/drivers/net/vrf.c
+++ b/drivers/net/vrf.c
@@ -103,20 +103,23 @@ static struct dst_ops vrf_dst_ops = {
 #if IS_ENABLED(CONFIG_IPV6)
 static bool check_ipv6_frame(const struct sk_buff *skb)
 {
-       const struct ipv6hdr *ipv6h = (struct ipv6hdr *)skb->data;
-       size_t hlen = sizeof(*ipv6h);
+       const struct ipv6hdr *ipv6h;
+       struct ipv6hdr _ipv6h;
        bool rc = true;
 
-       if (skb->len < hlen)
+       ipv6h = skb_header_pointer(skb, 0, sizeof(_ipv6h), &_ipv6h);
+       if (!ipv6h)
                goto out;
 
        if (ipv6h->nexthdr == NEXTHDR_ICMP) {
                const struct icmp6hdr *icmph;
+               struct icmp6hdr _icmph;
 
-               if (skb->len < hlen + sizeof(*icmph))
+               icmph = skb_header_pointer(skb, sizeof(_ipv6h),
+                                          sizeof(_icmph), &_icmph);
+               if (!icmph)
                        goto out;
 
-               icmph = (struct icmp6hdr *)(skb->data + sizeof(*ipv6h));
                switch (icmph->icmp6_type) {
                case NDISC_ROUTER_SOLICITATION:
                case NDISC_ROUTER_ADVERTISEMENT: