Re: [PATCH v20] GSSAPI encryption support

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Stephen Frost <sfrost(at)snowman(dot)net>
Cc: Peter Eisentraut <peter(dot)eisentraut(at)2ndquadrant(dot)com>, Alvaro Herrera <alvherre(at)2ndquadrant(dot)com>, David Steele <david(at)pgmasters(dot)net>, Joe Conway <mail(at)joeconway(dot)com>, Magnus Hagander <magnus(at)hagander(dot)net>, Michael Paquier <michael(at)paquier(dot)xyz>, Nico Williams <nico(at)cryptonector(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>, Robbie Harwood <rharwood(at)redhat(dot)com>
Subject: Re: [PATCH v20] GSSAPI encryption support
Date: 2019-04-04 14:52:48
Message-ID: 5945.1554389568@sss.pgh.pa.us
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Stephen Frost <sfrost(at)snowman(dot)net> writes:
> * Tom Lane (tgl(at)sss(dot)pgh(dot)pa(dot)us) wrote:
>> I'm not very sure why the integer/pointer confusion in pgstat_bestart
>> doesn't cause hard crashes when using gss auth --- or does
>> this suite not actually test that?

> Isn't it just saying that because of the implicit declaration..?
> Once that's fixed, the integer/pointer warning will go away, but
> it's actually a pointer in either case, hence why it isn't crashing.

Well, if the caller thinks what is being passed back is an int,
it will do a 32-to-64-bit widening, which is almost certainly
going to result in a corrupted pointer.

> The test suite does test GSS authentication and GSS encryption.

Hm. I'll poke at this more closely.

regards, tom lane

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