Commit d52fbfc9 authored by Julian Anastasov's avatar Julian Anastasov Committed by David S. Miller

ipv4: use dst with ref during bcast/mcast loopback

Make sure skb dst has reference when moving to
another context. Currently, I don't see protocols that can
hit it when sending broadcasts/multicasts to loopback using
noref dsts, so it is just a precaution.
Signed-off-by: default avatarJulian Anastasov <ja@ssi.bg>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 47670b76
...@@ -122,6 +122,7 @@ static int ip_dev_loopback_xmit(struct sk_buff *newskb) ...@@ -122,6 +122,7 @@ static int ip_dev_loopback_xmit(struct sk_buff *newskb)
newskb->pkt_type = PACKET_LOOPBACK; newskb->pkt_type = PACKET_LOOPBACK;
newskb->ip_summed = CHECKSUM_UNNECESSARY; newskb->ip_summed = CHECKSUM_UNNECESSARY;
WARN_ON(!skb_dst(newskb)); WARN_ON(!skb_dst(newskb));
skb_dst_force(newskb);
netif_rx_ni(newskb); netif_rx_ni(newskb);
return 0; return 0;
} }
......
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