From: Zu-Ming Jiang <zuming.jiang@inf.ethz.ch>
To: Tom Lane <tgl@sss.pgh.pa.us>
Cc: pgsql-bugs@lists.postgresql.org
Subject: Re: BUG #18276: Heap-buffer-overflow triggered in src/backend/utils/adt/datum.c:163
Date: Sun, 7 Jan 2024 21:15:32 +0100
Message-ID: <c5cff649-efa7-45b1-8965-e75f75ec8fce@inf.ethz.ch> (raw)
In-Reply-To: <1637353.1704656849@sss.pgh.pa.us>
References: <18276-13b98d6ec97ed5b8@postgresql.org>
<1633850.1704655019@sss.pgh.pa.us>
<25caa537-1add-4561-8ef9-806c46ac98ce@inf.ethz.ch>
<1637353.1704656849@sss.pgh.pa.us>
Thanks for the feedback!
> It's not reasonable to expect the system to figure out the behavior
> of C functions (see: halting problem). In the end this is why
> creating base types is a superuser-only operation: it's possible
> to crash the server with a wrong definition. I don't see any prospect
> of making that meaningfully safer.
I will adjust my fuzzer to avoid such issues.
Best wishes,
Zuming
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To: pgsql-bugs@postgresql.org
Cc: zuming.jiang@inf.ethz.ch, tgl@sss.pgh.pa.us, pgsql-bugs@lists.postgresql.org
Subject: Re: BUG #18276: Heap-buffer-overflow triggered in src/backend/utils/adt/datum.c:163
In-Reply-To: <c5cff649-efa7-45b1-8965-e75f75ec8fce@inf.ethz.ch>
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