From f4b7ac5ec37d0b6b183677d8b3f10576b18945fd Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Sun, 25 Feb 2018 18:18:52 +0100 Subject: [PATCH] netfilter: nf_flow_table: fix checksum when handling DNAT Add a missing call to csum_replace4 like on SNAT. Signed-off-by: Felix Fietkau Signed-off-by: Pablo Neira Ayuso --- net/ipv4/netfilter/nf_flow_table_ipv4.c | 1 + 1 file changed, 1 insertion(+) diff --git a/net/ipv4/netfilter/nf_flow_table_ipv4.c b/net/ipv4/netfilter/nf_flow_table_ipv4.c index 25d2975da156..282b9cc4fe82 100644 --- a/net/ipv4/netfilter/nf_flow_table_ipv4.c +++ b/net/ipv4/netfilter/nf_flow_table_ipv4.c @@ -111,6 +111,7 @@ static int nf_flow_dnat_ip(const struct flow_offload *flow, struct sk_buff *skb, default: return -1; } + csum_replace4(&iph->check, addr, new_addr); return nf_flow_nat_ip_l4proto(skb, iph, thoff, addr, new_addr); }