From: Jakub Kicinski <kuba@kernel.org>
To: Sabrina Dubroca <sd@queasysnail.net>
Cc: Fedor Pchelkin <pchelkin@ispras.ru>,
"David S. Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Paolo Abeni <pabeni@redhat.com>, Raed Salem <raeds@nvidia.com>,
Lior Nahmanson <liorna@nvidia.com>,
Saeed Mahameed <saeedm@nvidia.com>,
Hannes Frederic Sowa <hannes@stressinduktion.org>,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
Alexey Khoroshilov <khoroshilov@ispras.ru>,
lvc-project@linuxtesting.org
Subject: Re: [PATCH] net: macsec: fix double free of percpu stats
Date: Wed, 14 Jun 2023 09:01:26 -0700 [thread overview]
Message-ID: <20230614090126.149049b1@kernel.org> (raw)
In-Reply-To: <ZImx5pp98OSNnv4I@hog>
On Wed, 14 Jun 2023 14:26:14 +0200 Sabrina Dubroca wrote:
> > What prevents the device from being opened and used before
> > macsec_add_dev() has finished? I think we need a fix which
> > would move this code before register_netdev(), instead :(
>
> Can the device be opened in parallel? We're under rtnl here.
>
> If we want to move that code, then we'll also have to move the
> eth_hw_addr_inherit call that's currently in macsec's ndo_init: in
> case the user didn't give an SCI, we have to make it up based on the
> device's mac address (dev_to_sci(dev, ...)), whether it's set by the
> user or inherited. I can't remember if I had a good reason to put the
> inherit in ndo_init.
Ah, you're right, this is a link creation path.
--
pw-bot: ur
next prev parent reply other threads:[~2023-06-14 16:01 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-06-13 19:22 [PATCH] net: macsec: fix double free of percpu stats Fedor Pchelkin
2023-06-14 3:01 ` Jakub Kicinski
2023-06-14 12:26 ` Sabrina Dubroca
2023-06-14 16:01 ` Jakub Kicinski [this message]
2023-06-14 20:17 ` Fedor Pchelkin
2023-06-14 21:15 ` Sabrina Dubroca
2023-06-15 6:02 ` Jakub Kicinski
2023-06-15 7:07 ` Sabrina Dubroca
2023-06-15 10:50 ` patchwork-bot+netdevbpf
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