[tor-bugs] #7959 [Tor]: onionskin_answer(): Bug: couldn't format created cell

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#7959: onionskin_answer(): Bug: couldn't format created cell
--------------------+-------------------------------------------------------
 Reporter:  sysrqb  |          Owner:                    
     Type:  defect  |         Status:  new               
 Priority:  normal  |      Milestone:                    
Component:  Tor     |        Version:  Tor: 0.2.4.8-alpha
 Keywords:          |         Parent:                    
   Points:          |   Actualpoints:                    
--------------------+-------------------------------------------------------
 Running 0.2.4.8-alpha with UseNTorHandshake 1

 {{{
 Jan 14 23:01:33.000 [debug] connection_or_process_cells_from_inbuf(): 27:
 starting, inbuf_datalen 0 (0 pending in tls object).
 Jan 14 23:01:33.000 [debug] global_read_bucket now 1073741824.
 Jan 14 23:01:33.000 [debug] global_write_bucket now 1073741824.
 Jan 14 23:01:33.000 [debug] global_relayed_read_bucket now 819200.
 Jan 14 23:01:33.000 [debug] or_conn->read_bucket now 1073741824.
 Jan 14 23:01:33.000 [debug] or_conn->write_bucket now 1073741824.
 Jan 14 23:01:33.000 [debug] conn_read_callback(): socket 27 wants to read.
 Jan 14 23:01:33.000 [debug] connection_read_to_buf(): 27: starting,
 inbuf_datalen 0 (0 pending in tls object). at_most 16384.
 Jan 14 23:01:33.000 [debug] connection_read_to_buf(): After TLS read of
 512: 549 read, 0 written
 Jan 14 23:01:33.000 [debug] connection_or_process_cells_from_inbuf(): 27:
 starting, inbuf_datalen 512 (0 pending in tls object).
 Jan 14 23:01:33.000 [debug] channel_queue_cell(): Directly handling
 incoming cell_t 0x7fff3db0c140 for channel 0x7f1548d16660 (global ID 5)
 Jan 14 23:01:33.000 [debug] command_process_create_cell(): Got a CREATE
 cell for circ_id 60215 on channel 5 (0x7f1548d16660)
 Jan 14 23:01:33.000 [debug] circuit_get_by_circid_channel_impl():
 circuit_get_by_circid_channel_impl() found nothing for circ_id 60215,
 channel ID 5 (0x7f1548d16660)
 Jan 14 23:01:33.000 [debug] circuitmux_attach_circuit(): Attaching circuit
 60215 on channel 5 to cmux 0x7f1548d167c0
 Jan 14 23:01:33.000 [debug] command_process_create_cell(): success: handed
 off onionskin.
 Jan 14 23:01:33.000 [debug] connection_or_process_cells_from_inbuf(): 27:
 starting, inbuf_datalen 0 (0 pending in tls object).
 Jan 14 23:01:33.000 [debug] conn_write_callback(): socket 22 wants to
 write.
 Jan 14 23:01:33.000 [debug] cpuworker_main(): onion_skin_server_handshake
 succeeded.
 Jan 14 23:01:33.000 [debug] cpuworker_main(): finished writing response.
 Jan 14 23:01:33.000 [debug] conn_read_callback(): socket 22 wants to read.
 Jan 14 23:01:33.000 [debug] read_to_chunk(): Read 620 bytes. 620 on inbuf.
 Jan 14 23:01:33.000 [debug] connection_cpu_process_inbuf(): Unpacking
 cpuworker reply, chan_id is 5, circ_id is 60215
 Jan 14 23:01:33.000 [debug] circuit_get_by_circid_channel_impl():
 circuit_get_by_circid_channel_impl() returning circuit 0x7f1548d194f0 for
 circ_id 60215, channel ID 5 (0x7f1548d16660)
 Jan 14 23:01:33.000 [warn] onionskin_answer(): Bug: couldn't format
 created cell
 Jan 14 23:01:33.000 [warn] onionskin_answer failed. Closing.
 Jan 14 23:01:33.000 [debug] circuit_get_by_circid_channel_impl():
 circuit_get_by_circid_channel_impl() returning circuit 0x7f1548d194f0 for
 circ_id 60215, channel ID 5 (0x7f1548d16660)
 Jan 14 23:01:33.000 [debug] channel_send_destroy(): Sending destroy
 (circID 60215) on channel 0x7f1548d16660 (global ID 5)
 Jan 14 23:01:33.000 [debug] channel_write_cell(): Writing cell_t
 0x7fff3db0c010 to channel 0x7f1548d16660 with global ID 5
 Jan 14 23:01:33.000 [debug] conn_write_callback(): socket 27 wants to
 write.
 Jan 14 23:01:33.000 [debug] flush_chunk_tls(): flushed 512 bytes, 0 ready
 to flush, 0 remain.
 Jan 14 23:01:33.000 [debug] connection_handle_write_impl(): After TLS
 write of 512: 0 read, 586 written
 }}}

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/7959>
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