Re: fatal: mm_receive_fd

From: Ville Herva (vherva@niksula.hut.fi)
Date: 11/30/02

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From: Ville Herva <vherva@niksula.hut.fi>
To: David Sims <dpsims@virtualdave.com>

    On Wed, Nov 27, 2002 at 12:30:28PM -0600, you [David Sims] wrote:
    > Hi,
    >
    > Thanks. I have built this using the configure flag --with-md5-passwords
    > with no change in behavior... i.e., it works for root but not for non-root
    > users.... Any other clues??

    If you are running openssh-3.4p or openssh-3.5p on linux kernel 2.0.x,
    privilege separation doesn't work. If you try to enable it, you get the
    quoted error message. (AFAICR linux-2.0.x leaves one field uninitialized in
    unix domain socket code, and openssh tries to check it, hence the error.)

    There was a patch for this on this list when 3.4 was released - I'm not
    sure if it was good, and why it wasn't integrated.

    Your can turn of privilege separation from sshd_config, it'll work then.

    (If you are not running linux 2.0.x, then I don't know what the problem is.)

    > > On Tue Nov 26 08:32:19 PM, David Sims wrote:
    > >
    > > > I have downloaded the source tarball openssh-3.5p1.tar.gz
    > > > and built it on a Redhat 5.3 machine... It builds without complaining and
    > > > installs ok too.... Once installed, you can connect and successfully log
    > > > in (using a password) as root, but trying to connect as any other user
    > > > results in the error message below in the system log file:
    > > >
    > > > Nov 26 20:01:57 gateway sshd[3122]: Accepted password for dpsims from
    > > > xxx.xx.xxx.xx port 1058 ssh2
    > > > Nov 26 20:01:57 gateway sshd[3124]: fatal: mm_receive_fd: expected type 1
    > > > got 1074198465
    > > >
    > > > Any clues would be appreciated.

    -- v --

    v@iki.fi

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