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Re: BUG #19480: PL/Python SRF crashes (SIGSEGV) when function is replaced mid-iteration: use-after-free in PLy_funct

Tom Lane <tgl@sss.pgh.pa.us>

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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Heikki Linnakangas <hlinnaka@iki.fi>
Cc: Matheus Alcantara <matheusssilv97@gmail.com>, adoros@starfishstorage.com, pgsql-bugs@lists.postgresql.org, rmt@lists.postgresql.org
Date: 2026-06-17T15:56:36Z
Lists: pgsql-bugs 
Heikki Linnakangas <hlinnaka@iki.fi> writes:
>>>> Looping in the RMT to see what they think...

> It's fine to still sneak it into v19. It's better to have it earlier, 
> even if it means more churn during beta period.

OK.  I haven't looked closely at the patch yet, but will proceed with
reviewing it.

> I haven't looked closely at the patch, but since it's a bug fix it would 
> make sense to backpatch. If we're uncomfortable with backpatching it 
> now, we could commit in master now, and backpatch later when we have 
> more confidence.

I'm of the opinion that the risk-reward ratio is not great for putting
this into stable branches.  The case that fails is just not something
I'd expect people to do a lot in production.  So I'm content with
sneaking it into v19.

			regards, tom lane

Commits

Same data as JSON: GET /api/v1/messages/:b64id/commits the thread's linked commits as JSON, with link sources. API reference →

  1. plpython: Use funccache.c infrastructure for procedure caching.