netdev - Re: [PATCH net 05/13] netfilter: ipset: Missing gc cancellations fixed

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Date: Thu, 8 Feb 2024 10:20:51 +0100
From: Pablo Neira Ayuso <pablo@...filter.org>
To: Paolo Abeni <pabeni@...hat.com>
Cc: davem@...emloft.net, netdev@...r.kernel.org, kuba@...nel.org,
	edumazet@...gle.com, fw@...len.de, netfilter-devel@...r.kernel.org
Subject: Re: [PATCH net 05/13] netfilter: ipset: Missing gc cancellations
 fixed

Hi Paolo,

Working on v2 series, it should be ready in before noon.

On Thu, Feb 08, 2024 at 09:50:55AM +0100, Paolo Abeni wrote:
> Hi,
> 
> On Thu, 2024-02-08 at 06:48 +0100, Thorsten Leemhuis wrote:
> > On 08.02.24 00:37, Pablo Neira Ayuso wrote:
> > > From: Jozsef Kadlecsik <kadlec@...filter.org>
> > > 
> > > The patch fdb8e12cc2cc ("netfilter: ipset: fix performance regression
> > > in swap operation") missed to add the calls to gc cancellations
> > > at the error path of create operations and at module unload. Also,
> > > because the half of the destroy operations now executed by a
> > > function registered by call_rcu(), neither NFNL_SUBSYS_IPSET mutex
> > > or rcu read lock is held and therefore the checking of them results
> > > false warnings.
> > > 
> > > Reported-by: syzbot+52bbc0ad036f6f0d4a25@...kaller.appspotmail.com
> > > Reported-by: Brad Spengler <spender@...ecurity.net>
> > > Reported-by: Стас Ничипорович <stasn77@...il.com>
> > > Fixes: fdb8e12cc2cc ("netfilter: ipset: fix performance regression in swap operation")
> > 
> > FWIW, in case anyone cares: that afaics should be
> > 
> >  Fixes: 97f7cf1cd80e ("netfilter: ipset: fix performance regression in swap operation")
> > 
> > instead, as noted yesterday elsewhere[1].
> > 
> > Ciao, Thorsten
> > 
> > [1] https://lore.kernel.org/all/07cf1cf8-825e-47b9-9837-f91ae958dd6b@leemhuis.info/
> 
> I think it would be better to update the commit message, to help stable
> teams. 
> 
> Unless you absolutely need series in today PR, could you please send
> out a v2? Note that if v2 comes soon enough it can still land into the
> mentioned PR.
> 
> Thanks,
> 
> Paolo
>