netdev - Re: [PATCH 1/1] lwtunnel: check return value of nla_nest

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Message-Id: <20170424.155140.436046246227486722.davem@davemloft.net>
Date:   Mon, 24 Apr 2017 15:51:40 -0400 (EDT)
From:   David Miller <davem@...emloft.net>
To:     bianpan2016@....com
Cc:     dsa@...ulusnetworks.com, roopa@...ulusnetworks.com, ast@...nel.org,
        david.lebrun@...ouvain.be, tom@...bertland.com,
        rshearma@...cade.com, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/1] lwtunnel: check return value of nla_nest_start

From: Pan Bian <bianpan2016@....com>
Date: Sun, 23 Apr 2017 14:28:37 +0800

> Function nla_nest_start() may return a NULL pointer on error. However,
> in function lwtunnel_fill_encap(), the return value of nla_nest_start()
> is not validated before it is used. This patch checks the return value
> of nla_nest_start() against NULL.
> 
> Signed-off-by: Pan Bian <bianpan2016@....com>

Applied.