linux-kernel - Re: [PATCH] net: sun: sungem: rix a possible null dereference

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Message-ID: <88708a0d-7b8a-b1d7-ee66-fd51c6bfe0fe@cogentembedded.com>
Date:   Wed, 15 Mar 2017 13:05:24 +0300
From:   Sergei Shtylyov <sergei.shtylyov@...entembedded.com>
To:     Philippe Reynes <tremyfr@...il.com>, davem@...emloft.net,
        mugunthanvnm@...com, jarod@...hat.com,
        felipe.balbi@...ux.intel.com, edumazet@...gle.com, fw@...len.de,
        dan.carpenter@...cle.com
Cc:     netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] net: sun: sungem: rix a possible null dereference

Hello!

On 3/15/2017 12:23 AM, Philippe Reynes wrote:

> The function gem_begin_auto_negotiation dereference
> the pointer ep before testing if it's null. This
> patch add a check on ep before dereferencing it.
>
> This issue was added by the patch 92552fdd557:
> "net: sun: sungem: use new api ethtool_{get|set}_link_ksettings".

    There's Fixes: tag for that now, described in 
Documentation/process/submitting-patches.rst...

> Reported-by: Dan Carpenter <dan.carpenter@...cle.com>
> Signed-off-by: Philippe Reynes <tremyfr@...il.com>
[...]

MBR, Sergei