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bridge: reset IPCB in br_parse_ip_options 

Commit 462fb2af97 (bridge : Sanitize skb before it enters the IP
stack), missed one IPCB init before calling ip_options_compile()

Thanks to Scot Doyle for his tests and bug reports.

Reported-by: Scot Doyle <lkml@scotdoyle.com>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Hiroaki SHIMODA <shimoda.hiroaki@gmail.com>
Acked-by: Bandan Das <bandan.das@stratus.com>
Acked-by: Stephen Hemminger <shemminger@vyatta.com>
Cc: Jan Lübbe <jluebbe@debian.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
hifive-unleashed-5.1
Eric Dumazet 2011-04-12 13:39:14 -07:00 committed by David S. Miller
parent aa8673599f
commit f8e9881c2a
1 changed files with 2 additions and 4 deletions
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6
net/bridge/br_netfilter.c
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@ -249,11 +249,9 @@ static int br_parse_ip_options(struct sk_buff *skb)
goto drop;
}
/* Zero out the CB buffer if no options present */
if (iph->ihl == 5) {
memset(IPCB(skb), 0, sizeof(struct inet_skb_parm));
memset(IPCB(skb), 0, sizeof(struct inet_skb_parm));
if (iph->ihl == 5)
return 0;
}
opt->optlen = iph->ihl*4 - sizeof(struct iphdr);
if (ip_options_compile(dev_net(dev), opt, skb))