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-rw-r--r--net/ipv4/netfilter/ip_nat_proto_icmp.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/net/ipv4/netfilter/ip_nat_proto_icmp.c b/net/ipv4/netfilter/ip_nat_proto_icmp.c
index a558cf0eee8a..6596c9ee1655 100644
--- a/net/ipv4/netfilter/ip_nat_proto_icmp.c
+++ b/net/ipv4/netfilter/ip_nat_proto_icmp.c
@@ -35,16 +35,17 @@ icmp_unique_tuple(struct ip_conntrack_tuple *tuple,
const struct ip_conntrack *conntrack)
{
static u_int16_t id;
- unsigned int range_size
- = (unsigned int)range->max.icmp.id - range->min.icmp.id + 1;
+ unsigned int range_size;
unsigned int i;
+ range_size = ntohs(range->max.icmp.id) - ntohs(range->min.icmp.id) + 1;
/* If no range specified... */
if (!(range->flags & IP_NAT_RANGE_PROTO_SPECIFIED))
range_size = 0xFFFF;
for (i = 0; i < range_size; i++, id++) {
- tuple->src.u.icmp.id = range->min.icmp.id + (id % range_size);
+ tuple->src.u.icmp.id = htons(ntohs(range->min.icmp.id) +
+ (id % range_size));
if (!ip_nat_used_tuple(tuple, conntrack))
return 1;
}