Re: [BUGS] [PATCH] Fixed malformed error message on malformed SCRAM message. - Mailing list pgsql-bugs

From Michael Paquier
Subject Re: [BUGS] [PATCH] Fixed malformed error message on malformed SCRAM message.
Date
Msg-id CAB7nPqTCqQH_4jDkJRs2_SBNd_a=nO-J85b9R2c0LLVDpXod_Q@mail.gmail.com
Whole thread Raw
In response to Re: [BUGS] [PATCH] Fixed malformed error message on malformed SCRAMmessage.  (Heikki Linnakangas <hlinnaka@iki.fi>)
Responses Re: [BUGS] [PATCH] Fixed malformed error message on malformed SCRAMmessage.  (Heikki Linnakangas <hlinnaka@iki.fi>)
List pgsql-bugs
On Wed, Jun 7, 2017 at 11:48 PM, Heikki Linnakangas <hlinnaka@iki.fi> wrote:
> On 06/02/2017 09:32 AM, Noah Misch wrote:
>>> BTW, since you mention COMMERROR uses in auth.c, isn't the usage at
>>> line 687 wrong?  It sure looks like the author supposed that that
>>> ereport call wouldn't return, but it will.  Adjacent similar calls
>>> clean up and return NULL.
>>
>> Probably, though one could argue for proceeding with the short password.
>> Deserves a comment if log-only is intentional.
>
> Let's turn it into an ERROR.

Shouldn't that portion be back-patched?

>> The lack of an exit after COMMERROR "client selected an invalid SASL
>> authentication mechanism" looks like a bug.
>
> Yes. That was fixed in commit 505b5d2f86 already.
>
> Taking all the comments in this thread into account, and a few more things
> that I spotted while looking at the error messages, I came up with the
> attached patch. It includes the changes from Michael's patch upthread to use
> errdetail() in the SCRAM errors, and it turns the protocol violation errors
> in auth.c from COMMERROR into ERROR. See commit message for more details.
> Barring objections, I'll push this tomorrow.

Thanks for the new version. No additional comments from me.
-- 
Michael


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