netdev - Re: [PATCH] vxlan: fix a out of bounds access in __vxlan_find

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Message-ID: <CAM_iQpUoB0VH_c3OFMo4Dxrnrzie89jB0u=tceeqJjQgnr5PMQ@mail.gmail.com>
Date:	Fri, 29 Jan 2016 13:41:08 -0800
From:	Cong Wang <xiyou.wangcong@...il.com>
To:	roy.qing.li@...il.com
Cc:	Linux Kernel Network Developers <netdev@...r.kernel.org>
Subject: Re: [PATCH] vxlan: fix a out of bounds access in __vxlan_find_mac

On Thu, Jan 28, 2016 at 5:43 PM,  <roy.qing.li@...il.com> wrote:
> From: Li RongQing <roy.qing.li@...il.com>
>
> The size of all_zeros_mac is 6 byte, but eth_hash() will access the
> 8 byte, and KASan reported the below bug:


Sounds like we should fix eth_hash() (macvlan has a same function),
it should not read beyond 6 bytes.