Re: Unprivileged user can induce crash by using an SUSET param in PGOPTIONS - Mailing list pgsql-hackers

On Fri, Jul 22, 2022 at 02:56:22PM -0400, Tom Lane wrote:
> +    /*
> +     * If this is an interactive session, load any libraries that should be
> +     * preloaded at backend start.  Since those are determined by GUCs, this
> +     * can't happen until GUC settings are complete, but we want it to happen
> +     * during the initial transaction in case anything that requires database
> +     * access needs to be done.
> +     */
> +    if (!bootstrap &&
> +        !IsAutoVacuumWorkerProcess() &&
> +        !IsBackgroundWorker &&
> +        !am_walsender)
> +        process_session_preload_libraries();

I worry that this will be easily missed when adding new types of
non-interactive sessions, but I can't claim to have a better idea.

-- 
Nathan Bossart
Amazon Web Services: https://aws.amazon.com