1 files changed, 19 insertions, 0 deletions
diff --git a/target/linux/generic/backport-4.19/365-v4.16-netfilter-nf_flow_table-fix-checksum-when-handling-D.patch b/target/linux/generic/backport-4.19/365-v4.16-netfilter-nf_flow_table-fix-checksum-when-handling-D.patch
new file mode 100644
index 0000000000..372c8d59ef
--- /dev/null
+++ b/target/linux/generic/backport-4.19/365-v4.16-netfilter-nf_flow_table-fix-checksum-when-handling-D.patch
@@ -0,0 +1,19 @@
+From: Felix Fietkau <nbd@nbd.name>
+Date: Sun, 25 Feb 2018 17:22:55 +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 <nbd@nbd.name>
+---
+
+--- a/net/netfilter/nf_flow_table_ip.c
++++ b/net/netfilter/nf_flow_table_ip.c
+@@ -130,6 +130,7 @@ static int nf_flow_dnat_ip(const struct
+ 	default:
+ 		return -1;
+ 	}
++	csum_replace4(&iph->check, addr, new_addr);
+ 
+ 	return nf_flow_nat_ip_l4proto(skb, iph, thoff, addr, new_addr);
+ }