ip_tunnel:multicast process cause panic due to skb->_skb_refdst NULL pointer
when ip_tunnel process multicast packets, it may check if the packet is looped back packet though 'rt_is_output_route(skb_rtable(skb))' in ip_tunnel_rcv(), but before that , skb->_skb_refdst has been dropped in iptunnel_pull_header(), so which leads to a panic. fix the bug: https://bugzilla.kernel.org/show_bug.cgi?id=70681 Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
parent
3995d265b3
commit
10ddceb22b
|
@ -108,7 +108,6 @@ int iptunnel_pull_header(struct sk_buff *skb, int hdr_len, __be16 inner_proto)
|
|||
nf_reset(skb);
|
||||
secpath_reset(skb);
|
||||
skb_clear_hash_if_not_l4(skb);
|
||||
skb_dst_drop(skb);
|
||||
skb->vlan_tci = 0;
|
||||
skb_set_queue_mapping(skb, 0);
|
||||
skb->pkt_type = PACKET_HOST;
|
||||
|
|
Loading…
Reference in a new issue