Commit cfc81b50 authored Oct 07, 2015 by Daniel Borkmann Committed by David S. Miller Oct 08, 2015

bpf, skb_do_redirect: clear sender_cpu before xmit



Similar to commit c29390c6 ("xps: must clear sender_cpu before
forwarding"), we also need to clear the skb->sender_cpu when moving
from RX to TX via skb_do_redirect() due to the shared location of
napi_id (used on RX) and sender_cpu (used on TX).

Fixes: 27b29f63 ("bpf: add bpf_redirect() helper")
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent dfdd7230

net/core/filter.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -1462,6 +1462,7 @@ int skb_do_redirect(struct sk_buff *skb)
		return dev_forward_skb(dev, skb);

		skb->dev = dev;
		skb_sender_cpu_clear(skb);
		return dev_queue_xmit(skb);
		}