Redirecting a packet from ingress to egress by using bpf_redirect
breaks if the egress interface has an fq qdisc installed. This is the same
problem as fixed in 8203e2d8 ("net: clear skb->tstamp in forwarding paths").
Clear skb->tstamp when redirecting into the egress path.
Fixes: 80b14de ("net: Add a new socket option for a future transmit time.")
Fixes: fb420d5 ("tcp/fq: move back to CLOCK_MONOTONIC")
Signed-off-by: Lorenz Bauer <lmb@xxxxxxxxxxxxxx>
---
net/core/filter.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/net/core/filter.c b/net/core/filter.c
index f1e703eed3d2..d914257763b5 100644
--- a/net/core/filter.c
+++ b/net/core/filter.c
@@ -2055,6 +2055,7 @@ static inline int __bpf_tx_skb(struct net_device *dev, struct sk_buff *skb)
}
skb->dev = dev;
+ skb->tstamp = 0;
dev_xmit_recursion_inc();
ret = dev_queue_xmit(skb);
--
2.20.1
