| From: | Andres Freund <andres(at)anarazel(dot)de> |
|---|---|
| To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
| Cc: | pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: OK, so culicidae is *still* broken |
| Date: | 2017-04-15 21:18:10 |
| Message-ID: | 20170415211810.vsing3muvqfcswqx@alap3.anarazel.de |
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| Lists: | pgsql-hackers |
On 2017-04-15 17:09:38 -0400, Tom Lane wrote:
> Andres Freund <andres(at)anarazel(dot)de> writes:
> > That seems quite reasonable. I'm afraid we're going to have to figure
> > out something similar, but more robust, for windows soon-ish :/
>
> Why doesn't Windows' ability to map the segment into the new process
> before it executes take care of that?
Because of ASLR of the main executable (i.e. something like PIE). It'll
supposedly become harder (as in only running in compatibility modes) if
binaries don't enable that. It's currently disabled somewhere in the VC
project generated. Besides that, it'd also be good for security
purposes if we didn't have to disable PIE (which also prevents it from
being used for the initial backend).
Andres
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