From: Pablo Neira Ayuso <pablo@netfilter.org>
To: Jozsef Kadlecsik <kadlec@netfilter.org>
Cc: netfilter-devel@vger.kernel.org, Lion Ackermann <nnamrec@gmail.com>
Subject: Re: [PATCH 1/1] netfilter: ipset: Fix race between namespace cleanup and gc in the list:set type
Date: Tue, 11 Jun 2024 18:45:14 +0200 [thread overview]
Message-ID: <Zmh_Gn0bSkeshGOo@calendula> (raw)
In-Reply-To: <ZmDlqGtGv_LdMj6k@calendula>
On Thu, Jun 06, 2024 at 12:24:40AM +0200, Pablo Neira Ayuso wrote:
> Hi Jozsef,
>
> On Tue, Jun 04, 2024 at 03:58:03PM +0200, Jozsef Kadlecsik wrote:
> [...]
> > @@ -424,14 +428,8 @@ static void
> > list_set_destroy(struct ip_set *set)
> > {
> > struct list_set *map = set->data;
> > - struct set_elem *e, *n;
> >
> > - list_for_each_entry_safe(e, n, &map->members, list) {
> > - list_del(&e->list);
> > - ip_set_put_byindex(map->net, e->id);
> > - ip_set_ext_destroy(set, e);
> > - kfree(e);
> > - }
> > + BUG_ON(!list_empty(&map->members));
>
> It would probably be better to turn this is WARN_ON_ONCE, such as:
>
> WARN_ON_ONCE(!list_empty(&map->members);
>
> BUG_ON is only allowed to be used in very particular cases these days.
>
> I can update this patch if you are fine with it.
Applied to nf.git, I am sorry for the delay, traveling last week.
prev parent reply other threads:[~2024-06-11 16:45 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-06-04 13:58 [PATCH 0/1] ipset patch for nf tree Jozsef Kadlecsik
2024-06-04 13:58 ` [PATCH 1/1] netfilter: ipset: Fix race between namespace cleanup and gc in the list:set type Jozsef Kadlecsik
2024-06-05 22:24 ` Pablo Neira Ayuso
2024-06-06 6:44 ` Jozsef Kadlecsik
2024-06-11 16:45 ` Pablo Neira Ayuso [this message]
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