openssh bugs - Sep 2011 - [Bug 1939] New: ssh client hangs when -t option is used to force pseudo-tty allocation

https://bugzilla.mindrot.org/show_bug.cgi?id=1939

             Bug #: 1939
           Summary: ssh client hangs when -t option is used to force
                    pseudo-tty allocation
    Classification: Unclassified
           Product: Portable OpenSSH
           Version: 5.4p1
          Platform: PPC
        OS/Version: AIX
            Status: NEW
          Severity: normal
          Priority: P2
         Component: sshd
        AssignedTo: unassigned-bugs at mindrot.org
        ReportedBy: mathews.dennis at gmail.com


Created attachment 2091
  --> https://bugzilla.mindrot.org/attachment.cgi?id=2091
ssh client verbose session

ssh hangs when -t option is used to force pseudo-tty allocation to
execute a command remotely. It hangs just after 'debug1: channel 0:
open confirm rwindow 0 rmax 32768'. This has been reproduced using
multiple accounts on multiple client OS ( Solaris/AIX/Linux with
varying client versions ) to rule out problem with client. Not all
servers with the same version of OpenSSH are affected though, but the
configurations are the same across working and non-working servers.
Nothing more is logged on the server other than a successful
authentication/login.

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https://bugzilla.mindrot.org/show_bug.cgi?id=1939

Darren Tucker <dtucker at zip.com.au> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |dtucker at zip.com.au

--- Comment #1 from Darren Tucker <dtucker at zip.com.au> 2011-09-20
14:10:25 EST ---
I believe this was fixed in 5.6 (see bug #1698).  From the release
notes (http://www.openssh.com/txt/release-5.6): 

 * Kill channel when pty allocation requests fail. Fixed stuck client
   if the server refuses pty allocation (bz#1698)

Can you reproduce the problem with a current version?

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https://bugzilla.mindrot.org/show_bug.cgi?id=1939

Darren Tucker <dtucker at zip.com.au> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |WORKSFORME

--- Comment #2 from Darren Tucker <dtucker at zip.com.au> 2011-11-04
10:23:20 EST ---
I'm prettty sure this is already fixed.  Please reopen if you can
reproduce with a current version.

--- Comment #3 from Darren Tucker <dtucker at zip.com.au> 2011-11-04
10:59:10 EST ---
(mail notifications were briefly broken, repeating comment):

I'm prettty sure this is already fixed.  Please reopen if you can
reproduce with a current version.

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