Autocreate bug fixed (was Re: DB Errors [SOLVED])

[Christos Soulios]

Hi Daniel,

Ok I found the problem. It is really autocreate's fault.
I bet you use a 2.1.x version of cyrus, because in cyrus 2.2.12 it is
already fixed. Now it is fixed in 2.1.18 too (patch version 0.9.4).

Get it from http://email.uoa.gr/download/cyrus/cyrus-imapd-2.1.18/

Regards,
Christos



Daniel Hazelbaker said:
Okay, after knocking down our mail server for an hour to track this
down I have a solution.  I do not remember where, but somewhere when I
was setting this up years ago I read that the method for delivering
from postfix->procmail->spamassassin->cyrus was to have postfix deliver
to procmail, and procmail instruct spamassassin to do its thing. Then
to use the cyrus deliver program with "-a $LOGNAME -m user.$LOGNAME" to
deliver the message.  Well what was happening is this:

Breakpoint 1, verify_user (user=0x0, domain=0x0, mailbox=0x100f8189
"user.kristina", quotacheck=0, authstate=0x0) at lmtpd.c:554

This combination (user = null and mailbox != null and mailbox does not
exist) would cause verify_user to pass userinbox (== null) to
autocreate_inbox, which would strcmp without any error checking and
segfault.

The solution seems to be to change the deliver line to just "-a
$LOGNAME $LOGNAME" and it seems to work properly for everything.

Daniel Hazelbaker

On Apr 26, 2005, at 4:45 PM, Daniel Hazelbaker wrote:

> I don't believe it is no symbols, I believe it is smashing the stack
> somehow (those are the only two entries in the stack).  Can't imagine
> how strcmp is smashing the stack but I suppose anything is possible.
> I'll try to attach, but I thought lmtpd forked a child process in the
> same way httpd does, maybe not though.

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