diff --git a/net/ipv4/route.c b/net/ipv4/route.c index a5da63e5faa2d8118d3044a5a79b5e51bf61cafc..0206789bc2b73b70f3a543385052efbe4cd6c3b6 100644 --- a/net/ipv4/route.c +++ b/net/ipv4/route.c @@ -1186,8 +1186,16 @@ static struct dst_entry *ipv4_dst_check(struct dst_entry *dst, u32 cookie) static void ipv4_link_failure(struct sk_buff *skb) { struct rtable *rt; + struct ip_options opt; - icmp_send(skb, ICMP_DEST_UNREACH, ICMP_HOST_UNREACH, 0); + /* Recompile ip options since IPCB may not be valid anymore. + */ + memset(&opt, 0, sizeof(opt)); + opt.optlen = ip_hdr(skb)->ihl*4 - sizeof(struct iphdr); + if (__ip_options_compile(dev_net(skb->dev), &opt, skb, NULL)) + return; + + __icmp_send(skb, ICMP_DEST_UNREACH, ICMP_HOST_UNREACH, 0, &opt); rt = skb_rtable(skb); if (rt)