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-rw-r--r--net/ipv4/tcp_ipv4.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index 337ba4cca052..94d683a61cba 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -651,6 +651,11 @@ static void tcp_v4_send_reset(struct sock *sk, struct sk_buff *skb)
arg.iov[0].iov_len, IPPROTO_TCP, 0);
arg.csumoffset = offsetof(struct tcphdr, check) / 2;
arg.flags = (sk && inet_sk(sk)->transparent) ? IP_REPLY_ARG_NOSRCCHECK : 0;
+ /* When socket is gone, all binding information is lost.
+ * routing might fail in this case. using iif for oif to
+ * make sure we can deliver it
+ */
+ arg.bound_dev_if = sk ? sk->sk_bound_dev_if : inet_iif(skb);
net = dev_net(skb_dst(skb)->dev);
arg.tos = ip_hdr(skb)->tos;