From: Jonas Falkevik <[email protected]>

[ Upstream commit 45ebf73ebcec88a34a778f5feaa0b82b1c76069e ]

Make sure SCTP_ADDR_{MADE_PRIM,ADDED} are sent only for associations
that have been established.

These events are described in rfc6458#section-6.1
SCTP_PEER_ADDR_CHANGE:
This tag indicates that an address that is
part of an existing association has experienced a change of
state (e.g., a failure or return to service of the reachability
of an endpoint via a specific transport address).

Signed-off-by: Jonas Falkevik <[email protected]>
Acked-by: Marcelo Ricardo Leitner <[email protected]>
Reviewed-by: Xin Long <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
 net/sctp/ulpevent.c |    3 +++
 1 file changed, 3 insertions(+)

--- a/net/sctp/ulpevent.c
+++ b/net/sctp/ulpevent.c
@@ -343,6 +343,9 @@ void sctp_ulpevent_nofity_peer_addr_chan
        struct sockaddr_storage addr;
        struct sctp_ulpevent *event;
 
+       if (asoc->state < SCTP_STATE_ESTABLISHED)
+               return;
+
        memset(&addr, 0, sizeof(struct sockaddr_storage));
        memcpy(&addr, &transport->ipaddr, transport->af_specific->sockaddr_len);
 


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