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rxrpc: Check the source of a packet to a client conn

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When looking up a client connection to which to route a packet, we need to
check that the packet came from the correct source so that a peer can't try
to muck around with another peer's connection.

Signed-off-by: David Howells <dhowells@redhat.com>
This commit is contained in:
David Howells 2016-06-30 11:34:30 +01:00
parent 88b99d0b7a
commit 689f4c646d
1 changed files with 3 additions and 1 deletions
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4
net/rxrpc/conn_object.c
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@ -508,7 +508,9 @@ struct rxrpc_connection *rxrpc_find_connection(struct rxrpc_local *local,
}
} else {
conn = idr_find(&rxrpc_client_conn_ids, cid >> RXRPC_CIDSHIFT);
if (conn && conn->proto.epoch == epoch)
if (conn &&
conn->proto.epoch == epoch &&
conn->params.peer == peer)
goto found;
}