netdev - Re: [PATCH net] vxlan: check tun_info options

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Message-Id: <20191029.174029.1911221179052316857.davem@davemloft.net>
Date:   Tue, 29 Oct 2019 17:40:29 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     lucien.xin@...il.com
Cc:     netdev@...r.kernel.org, tgraf@...g.ch
Subject: Re: [PATCH net] vxlan: check tun_info options_len properly

From: Xin Long <lucien.xin@...il.com>
Date: Tue, 29 Oct 2019 01:24:32 +0800

> This patch is to improve the tun_info options_len by dropping
> the skb when TUNNEL_VXLAN_OPT is set but options_len is less
> than vxlan_metadata. This can void a potential out-of-bounds
> access on ip_tun_info.
> 
> Fixes: ee122c79d422 ("vxlan: Flow based tunneling")
> Signed-off-by: Xin Long <lucien.xin@...il.com>

Applied and queued up for -stable, thanks Xin.