Bug#790616: exim4: exim crashes when sending email to more then one recipient

[Andreas Metzler]

Control: found -1 4.86~RC1-1
Control: forwarded -1 https://bugs.exim.org/show_bug.cgi?id=1655

On 2015-07-01 Giacomo Mulas <gmulas at oa-cagliari.inaf.it> wrote:
[...]
> I upgraded to 4.85-3 at the end of April, I think I would have noticed this
> problem rather quickly, so I would definitely vote for 4.86~RC3-2, which
> happened on the 24th of June.  However I cannot be completely sure: since
> the problem shows only when sending email to multiple recipients, it is in
> principle possible that the problem was unnoticed for a while, but this is
> very very unlikely. To be sure about this, I would need to downgrade exim4
> to earlier versions and check if the problem is present.

Hello,

I have been able to verify this, the breakage happened in 4.86RC1.
(snapshot.debian.org to the rescue.)

> However, as I already said in a previous email, the "culprit" appears to be
> sa-exim (which has been unchanged for well over a year), which must have
> been broken by some recent ABI change in exim4: just recompiling sa-exim
> from its source package against the current exim4-dev and installing the
> resulting package (as I did locally) fixes the problem.

The breakage needs to be reflected in the Debian package dependencies
which rely on a upstream ABI counter that needs to be bumped. I have
submitted a upstream report about this.

> checking whether the problem is present is trivial,
[ helpful description ]

Thanks for the help, we should be able to fix this for the 4.86
release.

cu Andreas
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