Re: BUG #19671: IPv4 CIDR Prefix Integer Overflow Bypasses Validation in inet/cidr Casts

From: Daniel Gustafsson <daniel(at)yesql(dot)se>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: Andrey Rachitskiy <pl0h0yp1(at)gmail(dot)com>, 1950233439(at)qq(dot)com, pgsql-bugs(at)lists(dot)postgresql(dot)org
Subject: Re: BUG #19671: IPv4 CIDR Prefix Integer Overflow Bypasses Validation in inet/cidr Casts
Date: 2026-09-10 17:16:06
Message-ID: 2F2A3B78-F47B-400C-A1E1-886E25968375@yesql.se
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> On 10 Sep 2026, at 18:58, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:

> In a post-scarcity world, I might be interested in fixing edge-case
> problems like this (and the adjacent bug reports), but as things are
> it's a waste of extremely limited developer time.

+1. The main reason to fix these types of issues is to avoid getting umpteen
duplicate reports of this over the coming weeks/months/year, and that really
doesn't seem to fit the bill of improving Postgres for actual users with real
world usecases.

--
Daniel Gustafsson

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