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sctp: check assoc before SCTP_ADDR_{MADE_PRIM, ADDED} event 

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 <jonas.falkevik@gmail.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Reviewed-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jonas Falkevik 2020-05-27 11:56:40 +02:00 committed by David S. Miller
parent a068aab422
commit 45ebf73ebc
1 changed files with 3 additions and 0 deletions
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3
net/sctp/ulpevent.c
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@ -343,6 +343,9 @@ void sctp_ulpevent_nofity_peer_addr_change(struct sctp_transport *transport,
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);