Bug 1522

Summary:

MaxSessions=0 causes client to hang

Product:

Portable OpenSSH

Reporter:

Iain Morgan <imorgan>

Component:

sshd

Assignee:

Assigned to nobody <unassigned-bugs>

Status:

CLOSED FIXED

Severity:

normal

CC:

djm

Priority:

Version:

5.1p1

Hardware:

All

OS:

All

Bug Depends on:

Bug Blocks:

1481

Attachments:

Description	Flags
call cleanup handlers on channel open failures	none

Description Iain Morgan 2008-09-05 13:51:44 AEST

When MaxSessions=0 is set in the sshd_config, client connections hang.
Port forwardings requested on the ssh command-line still work, assuming
the server allows them, but the client is unresponsive to any keyborad
input. Neither ~. nor ^C will close the session.

Based on comments from Damien, the solution may be to to replace a call
to channel_free() with chan_mark_dead() in channels.c.

Comment 1 Damien Miller 2008-12-08 10:05:34 AEDT

Created attachment 1586 [details]
call cleanup handlers on channel open failures

This patch changes the way that we clean up on receipt of an open failure message so that we run the callbacks that are needed for ssh to notice that its session channel has gone away.

Comment 2 Damien Miller 2008-12-08 10:05:53 AEDT

put this on the list for 5.2

Comment 3 Damien Miller 2009-01-02 08:21:16 AEDT

patch applied - this will be in openssh-5.2. Thanks!

Comment 4 Damien Miller 2009-02-23 13:36:24 AEDT

Close bugs fixed/reviewed for openssh-5.2 release