| From | Greg Kroah-Hartman <> | Subject | [PATCH 4.8 16/49] net: icmp6_send should use dst dev to determine L3 domain | Date | Sat, 19 Nov 2016 10:23:08 +0100 |
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4.8-stable review patch. If anyone has any objections, please let me know.
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From: David Ahern <dsa@cumulusnetworks.com>
[ Upstream commit 5d41ce29e3b91ef305f88d23f72b3359de329cec ]
icmp6_send is called in response to some event. The skb may not have the device set (skb->dev is NULL), but it is expected to have a dst set. Update icmp6_send to use the dst on the skb to determine L3 domain.
Fixes: ca254490c8dfd ("net: Add VRF support to IPv6 stack") Signed-off-by: David Ahern <dsa@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> --- net/ipv6/icmp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/net/ipv6/icmp.c +++ b/net/ipv6/icmp.c @@ -448,7 +448,7 @@ static void icmp6_send(struct sk_buff *s if (__ipv6_addr_needs_scope_id(addr_type)) iif = skb->dev->ifindex; else - iif = l3mdev_master_ifindex(skb->dev); + iif = l3mdev_master_ifindex(skb_dst(skb)->dev); /* * Must not send error if the source does not uniquely
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