[SFTP] Infinite loop after SSH_CHANNEL_FAILURE received in incorrect state 0

[Yanis Kurganov <yanis.kurganov@xxxxxxxxx>]

I've got the following error on Windows -> libssh SFTP -> AIX 6.1
Unfortunately, I have no access for this system and can't debug libssh
Both 0.7.7 and 0.8.7
Full log attached

ssh_packet_channel_success: Received SSH_CHANNEL_SUCCESS on channel (558:1)
ssh_packet_process: Dispatching handler for packet type 98
channel_rcv_request: Remote connection closed by signal SIG SEGV
ssh_packet_process: Dispatching handler for packet type 96
channel_rcv_eof: Received eof on channel (558:1)
channel_write_common: Remote channel is closed
ssh_channel_send_eof: Sent a EOF on client channel (558:1)

... the same 9 times...

ssh_packet_channel_open_conf: Received a CHANNEL_OPEN_CONFIRMATION for
channel 566:9
channel_rcv_request: Remote connection closed by signal SIG SEGV
channel_rcv_eof: Received eof on channel (566:9)
channel_rcv_close: Received close on channel (566:9)
channel_request: Channel request subsystem success
channel_write_common: Remote channel is closed

... last try...

channel_open: Sent a SSH_MSG_CHANNEL_OPEN type session for channel 567
ssh_packet_channel_open_fail: Channel opening failure: channel 567 error
(1) open failed
ssh_packet_channel_open_fail: Invalid packet
channel_request: Sent a SSH_MSG_CHANNEL_REQUEST subsystem
ssh_packet_channel_failure: Received SSH_CHANNEL_FAILURE on channel (43:0)
ssh_packet_channel_failure: SSH_CHANNEL_FAILURE received in incorrect state
0

... infinite loop...

ssh_packet_socket_callback: packet: read type 98
[len=44,padding=12,comp=31,payload=31]
ssh_packet_process: Dispatching handler for packet type 98
channel_rcv_request: Responding to Openssh's keepalive
ssh_socket_unbuffered_write: Enabling POLLOUT for socket
packet_send2: packet: wrote [len=12,padding=6,comp=5,payload=5]

Attachment: libssh.log.gz
Description: GNU Zip compressed data