In certain circumstances, SshClient.Disconnect may never return.

[carl-andersson-at-westermo]

Observed when doing manual SSH-jumping (I.e using SSH.NET to create an SSH shell in a remote device, then using that device to SSH to another device, and then repeating the procedure in order to reach a third device, the error occurs when the jump to reach this third device fails). When attempting to disconnect the SSH session, it seems to get eternally stuck on the WaitOne() call in:

SSH.NET/src/Renci.SshNet/Session.cs

Line 828 in ee054f4

if (_messageListenerCompleted != null)

This can be avoided by raising a Task.Run that fires-and-forgets, of course, but it is less than ideal that it seems to get stuck in this way.

This has not been observed outside of situations where the secondary connection fails, and has otherwise worked fine.

Version: SSH.NET 2024.2.0
Runtime: .NET 9.0.100
OS: Windows, Build 10.00.22621