Commit 63117f09 authored Feb 01, 2017 by Dan Carpenter Committed by David S. Miller Feb 01, 2017

ipv6: pointer math error in ip6_tnl_parse_tlv_enc_lim()



Casting is a high precedence operation but "off" and "i" are in terms of
bytes so we need to have some parenthesis here.

Fixes: fbfa743a ("ipv6: fix ip6_tnl_parse_tlv_enc_lim()")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent 1a2a1444

net/ipv6/ip6_tunnel.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -441,7 +441,7 @@ __u16 ip6_tnl_parse_tlv_enc_lim(struct sk_buff skb, __u8 raw)
		if (i + sizeof(*tel) > optlen)
		break;

		tel = (struct ipv6_tlv_tnl_enc_lim *) skb->data + off + i;
		tel = (struct ipv6_tlv_tnl_enc_lim *)(skb->data + off + i);
		/* return index of option if found and valid */
		if (tel->type == IPV6_TLV_TNL_ENCAP_LIMIT &&
		tel->length == 1)