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From: Toshiaki Makita <toshiaki.makita1@gmail.com>
To: Rustam Kovhaev <rkovhaev@gmail.com>,
	davem@davemloft.net, kuba@kernel.org
Cc: netdev@vger.kernel.org, bpf@vger.kernel.org,
	linux-kernel@vger.kernel.org, gregkh@linuxfoundation.org
Subject: Re: [PATCH] veth: fix memory leak in veth_newlink()
Date: Mon, 31 Aug 2020 09:16:32 +0900	[thread overview]
Message-ID: <32e30526-bcc9-1f2f-1250-f36687561fbb@gmail.com> (raw)
In-Reply-To: <20200830131336.275844-1-rkovhaev@gmail.com>

On 2020/08/30 22:13, Rustam Kovhaev wrote:
> when register_netdevice(dev) fails we should check whether struct
> veth_rq has been allocated via ndo_init callback and free it, because,
> depending on the code path, register_netdevice() might not call
> priv_destructor() callback

AFAICS, register_netdevice() always goto err_uninit and calls priv_destructor()
on failure after ndo_init() succeeded.
So I could not find such a code path.
Would you elaborate on it?

Thanks,
Toshiaki Makita

  reply	other threads:[~2020-08-31  0:16 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-08-30 13:13 [PATCH] veth: fix memory leak in veth_newlink() Rustam Kovhaev
2020-08-31  0:16 ` Toshiaki Makita [this message]
2020-08-31  0:51   ` Rustam Kovhaev
2020-08-31  1:43     ` Toshiaki Makita
2020-09-01 20:01 ` David Miller
2020-09-01 22:59   ` Rustam Kovhaev

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