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tipc: Reject connection protocol message sent to unconnected port
Restructures the logic used in tipc_port_recv_proto_msg() to ensure that incoming connection protocol messages are handled properly. The routine now uses a two-stage process that first ensures the message applies on an existing connection and then processes the request. This corrects a loophole that allowed a connection probe request to be processed if it was sent to an unconnected port that had no names bound to it. Signed-off-by: Allan Stephens <[email protected]> Signed-off-by: Paul Gortmaker <[email protected]>
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