| Message ID | 1451949792-27393-1-git-send-email-kamal@canonical.com |
|---|---|
| State | New |
| Headers | show |
diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c index f04d077..23fcc82 100644 --- a/net/ipv4/ip_output.c +++ b/net/ipv4/ip_output.c @@ -451,7 +451,7 @@ packet_routed: skb->priority = sk->sk_priority; skb->mark = sk->sk_mark; - res = ip_local_out(skb); + res = ip_local_out_sk(sk, skb); rcu_read_unlock(); return res;
This is a note to let you know that I have just added a patch titled ipv4: Fix ip_queue_xmit to pass sk into ip_local_out_sk to the linux-4.2.y-queue branch of the 4.2.y-ckt extended stable tree which can be found at: http://kernel.ubuntu.com/git/ubuntu/linux.git/log/?h=linux-4.2.y-queue This patch is scheduled to be released in version 4.2.8-ckt1. If you, or anyone else, feels it should not be added to this tree, please reply to this email. For more information about the 4.2.y-ckt tree, see https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable Thanks. -Kamal ------ From 3d29672ae622e8c5afaef55ddb2a199de981bf23 Mon Sep 17 00:00:00 2001 From: "Eric W. Biederman" <ebiederm@xmission.com> Date: Wed, 7 Oct 2015 16:48:33 -0500 Subject: ipv4: Fix ip_queue_xmit to pass sk into ip_local_out_sk commit 850dcc4d4dd7d5da5c1b2a780c5e649c3b649545 upstream. After a packet has been encapsulated by a tunnel we should use the tunnel sockets local multicast loopback flag to control if the encapsulated packet should be locally loopback back. Pass sk into ip_local_out_sk so that in the rare case we are dealing with a tunneled packet whose tunnel destination address is a multicast address the kernel properly decides to loopback this packet. In practice I don't think this matters as ip_queue_xmit is used by tcp, l2tp and sctp none of which I am aware of uses ip level multicasting as they are all point to point communications protocols. Let's fix this before someone uses ip_queue_xmit for a tunnel protocol that does use multicast. Fixes: aad88724c9d5 ("ipv4: add a sock pointer to dst->output() path.") Fixes: b0270e91014d ("ipv4: add a sock pointer to ip_queue_xmit()") Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Kamal Mostafa <kamal@canonical.com> --- net/ipv4/ip_output.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) -- 1.9.1