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From: Tom Lane <[email protected]>
To: [email protected]
Cc: [email protected]
Subject: Re: BUG #19527: Double-Abort Crash in `ResOwnerReleaseOSSLCipher` via `encrypt_iv` with Oversized Input
Date: Mon, 22 Jun 2026 12:37:33 -0400
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
References: <[email protected]>

PG Bug reporting form <[email protected]> writes:
> Any role with `EXECUTE` on `encrypt_iv` (granted by default when pgcrypto is
> installed) can crash the backend with a single statement:

> ```sql
> CREATE EXTENSION IF NOT EXISTS pgcrypto;
> SELECT encrypt_iv(
>     repeat('A', 1073741308)::bytea,
>     decode('00112233445566778899aabbccddeeff', 'hex'),
>     decode('000102030405060708090a0b0c0d0e0f', 'hex'),
>     'aes'
> );
> ```

> The fix is to clear `od->owner` before calling `free_openssl_cipher` in
> `ResOwnerReleaseOSSLCipher`:

Good catch, thanks for the report!

			regards, tom lane

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