[PATCH 51/98] ipvs: SCTP ports should be writable in ICMP packets

[Luis Henriques]

3.5.7.17 -stable review patch.  If anyone has any objections, please let me know.

------------------

From: Julian Anastasov <ja@xxxxxx>

commit 06f3d7f973ec04290d86b7dd91b48d38d90433dc upstream.

Make sure that SCTP ports are writable when embedded in ICMP
from client, so that ip_vs_nat_icmp can translate them safely.

Signed-off-by: Julian Anastasov <ja@xxxxxx>
Signed-off-by: Simon Horman <horms@xxxxxxxxxxxx>
Cc: Pablo Neira Ayuso <pablo@xxxxxxxxxxxxx>
Signed-off-by: Luis Henriques <luis.henriques@xxxxxxxxxxxxx>
---
 net/netfilter/ipvs/ip_vs_core.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/net/netfilter/ipvs/ip_vs_core.c b/net/netfilter/ipvs/ip_vs_core.c
index a54b018c..40f9ad8 100644
--- a/net/netfilter/ipvs/ip_vs_core.c
+++ b/net/netfilter/ipvs/ip_vs_core.c
@@ -1378,7 +1378,8 @@ ip_vs_in_icmp(struct sk_buff *skb, int *related, unsigned int hooknum)
 
 	/* do the statistics and put it back */
 	ip_vs_in_stats(cp, skb);
-	if (IPPROTO_TCP == cih->protocol || IPPROTO_UDP == cih->protocol)
+	if (IPPROTO_TCP == cih->protocol || IPPROTO_UDP == cih->protocol ||
+	    IPPROTO_SCTP == cih->protocol)
 		offset += 2 * sizeof(__u16);
 	verdict = ip_vs_icmp_xmit(skb, cp, pp, offset, hooknum);
 
-- 
1.8.1.2

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