sftp exits with error NULL pointer given as argument

[Pavel Rosenboim]

Pavel Rosenboim wrote:

> Hi,
>
> I'm connecting with sftp from my work computer running Win2k SP4 to my 
> home computer running Fedora Core 3. My ssh config file turns on port 
> forwarding for several ports. In this configuration sftp exits with 
> error: "xfree: NULL pointer given as argument". When port forwarding 
> is turned off sftp connects without problems. Also this happens only 
> with sftp not ssh. The problem started after upgrading openssh package 
> to version 4.0p1 and doesn't happen with previous releases. I also 
> tried to connect from Fedora Core 4 test3 machine which also uses 
> openssh 4.0p1 with same configuration and it does work.
>
> Output of sftp -v -v -v -v -v pavel@pashar.dyndns.org
> Connecting to pashar.dyndns.org...
> OpenSSH_4.0p1, OpenSSL 0.9.7g 11 Apr 2005
> debug1: Reading configuration data /home/pavelr/.ssh/config
> debug1: Applying options for pashar.dyndns.org
> debug1: Reading configuration data /etc/ssh_config
> xfree: NULL pointer given as argument
> Connection closed
>
 > Any changes made to /etc/ssh_config?

No changes to /etc/ssh_config, but many changes to .ssh/config. The most 
significant part is port forwarding (everything works when it is 
disabled) but I'm attaching my config file if you want to see everything.

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