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-rw-r--r--net/netfilter/nf_nat_proto.c13
1 files changed, 13 insertions, 0 deletions
diff --git a/net/netfilter/nf_nat_proto.c b/net/netfilter/nf_nat_proto.c
index 0a59c14b5177..64eedc17037a 100644
--- a/net/netfilter/nf_nat_proto.c
+++ b/net/netfilter/nf_nat_proto.c
@@ -233,6 +233,19 @@ icmp_manip_pkt(struct sk_buff *skb,
return false;
hdr = (struct icmphdr *)(skb->data + hdroff);
+ switch (hdr->type) {
+ case ICMP_ECHO:
+ case ICMP_ECHOREPLY:
+ case ICMP_TIMESTAMP:
+ case ICMP_TIMESTAMPREPLY:
+ case ICMP_INFO_REQUEST:
+ case ICMP_INFO_REPLY:
+ case ICMP_ADDRESS:
+ case ICMP_ADDRESSREPLY:
+ break;
+ default:
+ return true;
+ }
inet_proto_csum_replace2(&hdr->checksum, skb,
hdr->un.echo.id, tuple->src.u.icmp.id, false);
hdr->un.echo.id = tuple->src.u.icmp.id;