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Diffstat (limited to 'net/ipv6/seg6_iptunnel.c')
-rw-r--r--net/ipv6/seg6_iptunnel.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/net/ipv6/seg6_iptunnel.c b/net/ipv6/seg6_iptunnel.c
index de4c9826c1ce..1d641e21f23f 100644
--- a/net/ipv6/seg6_iptunnel.c
+++ b/net/ipv6/seg6_iptunnel.c
@@ -128,6 +128,14 @@ int seg6_do_srh_encap(struct sk_buff *skb, struct ipv6_sr_hdr *osrh, int proto)
hdr->hop_limit = ip6_dst_hoplimit(skb_dst(skb));
memset(IP6CB(skb), 0, sizeof(*IP6CB(skb)));
+
+ /* the control block has been erased, so we have to set the
+ * iif once again.
+ * We read the receiving interface index directly from the
+ * skb->skb_iif as it is done in the IPv4 receiving path (i.e.:
+ * ip_rcv_core(...)).
+ */
+ IP6CB(skb)->iif = skb->skb_iif;
}
hdr->nexthdr = NEXTHDR_ROUTING;