Commit 14fb8a76 authored by Li Yewang's avatar Li Yewang Committed by David S. Miller
Browse files

[IPV4]: Fix BUG of ip_rt_send_redirect() 



Fix the redirect packet of the router if the jiffies wraparound.

Signed-off-by: default avatarLi Yewang <lyw@nanjing-fnst.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent a9fc00cc

net/ipv4/route.c

+2 −1
Original line number Diff line number Diff line
@@ -1325,7 +1325,8 @@ void ip_rt_send_redirect(struct sk_buff *skb) 
	/* Check for load limit; set rate_last to the latest sent

	 * redirect.

	 */

	if (time_after(jiffies,

	if (rt->u.dst.rate_tokens == 0 ||

	    time_after(jiffies,

		       (rt->u.dst.rate_last +

			(ip_rt_redirect_load << rt->u.dst.rate_tokens)))) {

		icmp_send(skb, ICMP_REDIRECT, ICMP_REDIR_HOST, rt->rt_gateway);