openssh bugs - Apr 2018 - [Bug 2859] New: git stopped to work when gitlab is running on nonstandard port

https://bugzilla.mindrot.org/show_bug.cgi?id=2859

            Bug ID: 2859
           Summary: git stopped to work when gitlab is running on
                    nonstandard port
           Product: Portable OpenSSH
           Version: 7.7p1
          Hardware: amd64
                OS: Linux
            Status: NEW
          Severity: major
          Priority: P5
         Component: ssh
          Assignee: unassigned-bugs at mindrot.org
          Reporter: gglater62 at gmail.com

After upgrade to openssh-7.7 git stopped to work.

url to git repository is something like:
ssh://git at gitlab.example.com:7456/something/something.git

Result of git pull:

bash: git-upload-pack: command not found
fatal: Could not read from remote repository.

Please make sure you have the correct access rights
and the repository exists.

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Darren Tucker <dtucker at dtucker.net> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |dtucker at dtucker.net

--- Comment #1 from Darren Tucker <dtucker at dtucker.net> ---
The error message seems to indicate that git-upload-pack is not in the
$PATH on the server.

Could you please attach the ssh debug output?  Assuming a Bourne-ish
shell, something like:

$ GIT_SSH_COMMAND='echo ssh $@ 1>&2; ssh -vvv' git pull

then attach the resulting log using "Add an attachment"?

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--- Comment #2 from tester <gglater62 at gmail.com> ---
Hm,
when I set GIT_COMMAND_SSH=ssh it works,
but when GIT_COMMAND_SSH is unset it does not.

For 7.6 it worked even when GIT_COMMAND_SSH was unset.

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--- Comment #3 from Darren Tucker <dtucker at dtucker.net> ---
OK, how about strace, eg:

$ strace -f -e trace=process git clone
ssh://git at gitlab.example.com:7456/something/something.git

There should be a line something like
[pid 20798] execve("/usr/local/bin/ssh",
["/usr/local/bin/ssh", "-p",
"7456", "git at gitlab.example.com", "git-upload-pack
'/something/some"...], 0x561bec622a50 /* 43 vars */) = 0

which will show the arguments given to the ssh command.

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--- Comment #4 from tester <gglater62 at gmail.com> ---
Created attachment 3143
  --> https://bugzilla.mindrot.org/attachment.cgi?id=3143&action=edit
Log of git pull

It is a bit "obfuscated".

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--- Comment #5 from Darren Tucker <dtucker at dtucker.net> ---
(In reply to tester from comment #4)
> Created attachment 3143 [details]
> Log of git pull
> 
> It is a bit "obfuscated".
>From the log:
> 17825 execve("/usr/bin/ssh-user", ["/usr/bin/ssh-user",
"-G", "-p",
> "7456", "git at gitlab.example.com"], 0x14c30c0 /* 75
vars */) = 0
What's ssh-user and where does it come from?  It's being invoked by git
before ssh.  It seems to end up running

/usr/bin/ssh -x -a -oClearAllForwardings=yes -l tester -p 7456
git at gitlab.example.com

which specifies contradictory usernames "tester" and "git". 
The option
parsing changed in 7.7 and now uses the first match, same as the rest
of the config parsing.

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--- Comment #6 from tester <gglater62 at gmail.com> ---
Sorry, for noise.
I uninstalled ssh-user (okas) package.
It was set via GIT_SSH and now git works.
Sorry, and thanks for help.

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tester <gglater62 at gmail.com> changed:

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

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Damien Miller <djm at mindrot.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |CLOSED

--- Comment #7 from Damien Miller <djm at mindrot.org> ---
Close RESOLVED bugs with the release of openssh-8.0

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