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Re: Exceeding LINEBUF with dccproc

2003-06-07 11:50:09
At 11:00 2003-06-07 -0700, David G. Colburn did say:
> >Unfortunately, though, I get several message built up in the queue after a
> >period of time with the following error:
> >--- qmail log -----
> >2003-06-06 12:34:54.393122500 delivery 41273: deferral:
> >procmail:_Exceeded_LINEBUF/

What version of procmail are you running anyway? That rather significant tidbit seems to have been omitted from your post.

There's discussion of a heap overflow in 3.15.x on securityfocus:

<http://www.derkeiler.com/Mailing-Lists/securityfocus/vuln-dev/2002-06/0206.html>

3.15 is approaching 3 years old now.

If the LINEBUF limit does not apply directly to the mail itself, then what
specifically triggers an overflow?

Typically, a very large regexp. Yes, your rcfile doesn't seem to include anything like that.

A websearch for "Exceeded_LINEBUF" would net you a number of hits about the topic, largely right from one of the several web archives of this list.


At 19:07 2003-06-07 +0100, Alan Clifford contributed:
DGC> procmail:_Exceeded_LINEBUF/

Did the procmail log record anthing useful at this time?

If you examine his script, you'll note that he's has only a basic log, but VERBOSE is not enabled. Since the rcfile is so short, the volume of mail easily eclipses the logfile size (unlike say, setting VERBOSE on an rcfile which performs a lot of spam checks for instance), but one should periodically check and purge it nonetheless.

---
 Sean B. Straw / Professional Software Engineering

 Procmail disclaimer: <http://www.professional.org/procmail/disclaimer.html>
 Please DO NOT carbon me on list replies.  I'll get my copy from the list.


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