From: Andrew Lunn <andrew@lunn.ch>
To: Michal Kubecek <mkubecek@suse.cz>
Cc: "David S. Miller" <davem@davemloft.net>,
Jakub Kicinski <kuba@kernel.org>,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH net] ethtool: fix reference leak in some *_SET handlers
Date: Sun, 22 Mar 2020 21:23:51 +0100 [thread overview]
Message-ID: <20200322202351.GE3819@lunn.ch> (raw)
In-Reply-To: <20200322201551.E11BAE0FD3@unicorn.suse.cz>
On Sun, Mar 22, 2020 at 09:15:51PM +0100, Michal Kubecek wrote:
> Andrew noticed that some handlers for *_SET commands leak a netdev
> reference if required ethtool_ops callbacks do not exist. A simple
> reproducer would be e.g.
>
> ip link add veth1 type veth peer name veth2
> ethtool -s veth1 wol g
> ip link del veth1
>
> Make sure dev_put() is called when ethtool_ops check fails.
>
> Reported-by: Andrew Lunn <andrew@lunn.ch>
> Signed-off-by: Michal Kubecek <mkubecek@suse.cz>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Andrew
next prev parent reply other threads:[~2020-03-22 20:23 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-22 20:15 Michal Kubecek
2020-03-22 20:23 ` Andrew Lunn [this message]
2020-03-22 20:42 ` Florian Fainelli
2020-03-22 20:43 ` Jakub Kicinski
2020-03-22 20:51 ` Michal Kubecek
2020-03-22 21:06 ` Jakub Kicinski
2020-03-22 21:25 ` Michal Kubecek
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