Hi!

I am experiencing problems with some spam-mail that causes amavisd to
hang forever. Maybe it has some problems when running spamassassin, at
least in many cases the last debug-output is from spamassassin. However,
when manually feeding the mail to spamassassin, everything works fine.

Additionally, the following error is output:

*** glibc detected *** amavisd (ch1-30412-01): free(): invalid next size
(normal): 0x0def2e28 ***

The corresponding process never recovers and has to be killed with -9.

The emails that cause the trouble contain a zip file as attachment.
I have saved one of those mails, together with the debug-output of
amavis at the following address:

  http://leo.kloburg.at/tmp/amavis-hang/

Since mail delivery stops once all configured amavisd children are in
such a hanging state, I am desperately looking for an advice how to
further track down the bug.

Additionally I'd appreciate any hints on how to reject those mails in an
early state, so that amavisd won't crash. (Maybe based on the
attachment-name?)

Thanks,
--leo
-- 
e-mail   ::: Leo.Bergolth (at) wu.ac.at
fax      ::: +43-1-31336-906050
location ::: IT-Services | Vienna University of Economics | Austria


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