[PATCH 4.19 190/264] netfilter: nf_fwd_netdev: clear timestamp in forwarding path

From: Greg Kroah-Hartman
Date: Tue Oct 27 2020 - 13:50:36 EST


From: Pablo Neira Ayuso <pablo@xxxxxxxxxxxxx>

[ Upstream commit c77761c8a59405cb7aa44188b30fffe13fbdd02d ]

Similar to 7980d2eabde8 ("ipvs: clear skb->tstamp in forwarding path").
fq qdisc requires tstamp to be cleared in forwarding path.

Fixes: 8203e2d844d3 ("net: clear skb->tstamp in forwarding paths")
Fixes: fb420d5d91c1 ("tcp/fq: move back to CLOCK_MONOTONIC")
Fixes: 80b14dee2bea ("net: Add a new socket option for a future transmit time.")
Signed-off-by: Pablo Neira Ayuso <pablo@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
net/netfilter/nf_dup_netdev.c | 1 +
net/netfilter/nft_fwd_netdev.c | 1 +
2 files changed, 2 insertions(+)

diff --git a/net/netfilter/nf_dup_netdev.c b/net/netfilter/nf_dup_netdev.c
index f4a566e672135..98d117f3340ce 100644
--- a/net/netfilter/nf_dup_netdev.c
+++ b/net/netfilter/nf_dup_netdev.c
@@ -21,6 +21,7 @@ static void nf_do_netdev_egress(struct sk_buff *skb, struct net_device *dev)
skb_push(skb, skb->mac_len);

skb->dev = dev;
+ skb->tstamp = 0;
dev_queue_xmit(skb);
}

diff --git a/net/netfilter/nft_fwd_netdev.c b/net/netfilter/nft_fwd_netdev.c
index 649edbe77a205..10a12e0949299 100644
--- a/net/netfilter/nft_fwd_netdev.c
+++ b/net/netfilter/nft_fwd_netdev.c
@@ -129,6 +129,7 @@ static void nft_fwd_neigh_eval(const struct nft_expr *expr,
return;

skb->dev = dev;
+ skb->tstamp = 0;
neigh_xmit(neigh_table, dev, addr, skb);
out:
regs->verdict.code = verdict;
--
2.25.1