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 [PATCH net] ethtool: fix reference leak in some *_SET handlers 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
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20200322202351.GE3819@lunn.ch \
--to=andrew@lunn.ch \
--cc=davem@davemloft.net \
--cc=kuba@kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=mkubecek@suse.cz \
--cc=netdev@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.