netdev - Re: [PATCH net v2] net: atm: Fix use-after-free bug in atm_dev

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Date:   Tue, 13 Dec 2022 19:12:33 -0800
From:   Jakub Kicinski <kuba@...nel.org>
To:     Leon Romanovsky <leon@...nel.org>
Cc:     Nir Levy <bhr166@...il.com>, davem@...emloft.net,
        edumazet@...gle.com, pabeni@...hat.com,
        linux-atm-general@...ts.sourceforge.net, netdev@...r.kernel.org
Subject: Re: [PATCH net v2] net: atm: Fix use-after-free bug in
 atm_dev_register()

On Mon, 12 Dec 2022 09:12:30 +0200 Leon Romanovsky wrote:
> > v2: Call put_device in atm_register_sysfs instead of atm_dev_register.
> 
> Reviewed-by: Leon Romanovsky <leonro@...dia.com>

On one of the previous versions you commented that
atm_unregister_sysfs() also needs to move to unregister() rather 
than del():

https://lore.kernel.org/all/Y48CwyATYAAcPgqT@unreal/

Is that not the case?

Also atm_dev_register() still frees the dev on atm_register_sysfs()
failure, is that okay?