[syslog-ng] smtp on FreeBSD

[Gergely Nagy]

Peter Eisenlohr <peter.eisenlohr at inform-software.com> writes:

> Hi,
>
> I also was able to reproduce the segfault. It always happened when a
> "mark" was generated. So, in order to reproduce this, set the mark
> intervall to a low value, i.e. mark(1).
>
> I don't think it's a Problem of the 32bit NVTable patch, though. The
> following changes also made the segfault go away:
>
> --- a/lib/driver.c
> +++ b/lib/driver.c
> @@ -158,7 +158,7 @@ log_src_driver_queue_method(LogPipe *s, LogMessage
> *msg, const LogPathOptions *p
>    if (msg->flags & LF_LOCAL)
>      afinter_postpone_mark(cfg->mark_freq);
>
> -  log_msg_set_value(msg, LM_V_SOURCE, self->super.group, self->group_len);
> +  log_msg_set_value(msg, LM_V_SOURCE, self->super.group,
> strlen(self->super.group));
>    stats_counter_inc(self->super.processed_group_messages);
>    stats_counter_inc(self->received_global_messages);
>    log_pipe_forward_msg(s, msg, path_options);
>
> It seems that self->group_len is not initialized correctly, resulting in
> some ridiculous large value_len being passed to nv_table_set value. I
> just found this, but did not have any further time to investigate. I
> suspect this has been there before the NVTable patch, but since the
> value_len exceeded the old NVTable max value size, nothing was
> inserted.

This sounds interesting! Thanks for the investigation, this will help me
narrow down the issue tomorrow!

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