Horton

Re: BUG #16953: OOB access while converting "interval" to char

Michael Paquier <michael@paquier.xyz>

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From: Michael Paquier <michael@paquier.xyz>
To: Julien Rouhaud <rjuju123@gmail.com>
Cc: t.larionov@postgrespro.ru, pgsql-bugs@lists.postgresql.org
Date: 2021-04-12T03:04:23Z
Lists: pgsql-bugs 
On Fri, Apr 09, 2021 at 07:58:51PM +0900, Michael Paquier wrote:
> Yep.  The regression tests show what I would expect.  I'll check in
> details later.

I have spent some time on that today and applied this patch down to
9.6, after adding more comments and simplifying a bit the calculation
method used.  Instead of using the "mon" variable to store an
intermediate result, I have simplified things so as this only uses
tm->tm_mon, and "mon" for the position in the roman-numeral array is
adjusted only once.
--
Michael

Commits

  1. Fix out-of-bound memory access for interval -> char conversion