netdev - Re: [PATCH v2 net] nfc: use GFP_USER for user-controlled kmalloc

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Message-Id: <20160224.134521.961009575129127582.davem@davemloft.net>
Date:	Wed, 24 Feb 2016 13:45:21 -0500 (EST)
From:	David Miller <davem@...emloft.net>
To:	xiyou.wangcong@...il.com
Cc:	netdev@...r.kernel.org, dvyukov@...gle.com,
	linux-wireless@...r.kernel.org, julian.calaby@...il.com,
	eric.dumazet@...il.com, lauro.venancio@...nbossa.org,
	aloisio.almeida@...nbossa.org, sameo@...ux.intel.com
Subject: Re: [PATCH v2 net] nfc: use GFP_USER for user-controlled kmalloc

From: Cong Wang <xiyou.wangcong@...il.com>
Date: Wed, 24 Feb 2016 10:41:29 -0800

> On Fri, Jan 29, 2016 at 11:24 AM, Cong Wang <xiyou.wangcong@...il.com> wrote:
>> These two functions are called in sendmsg path, and the
>> 'len' is passed from user-space, so we should not allow
>> malicious users to OOM kernel on purpose.
>>
>> Reported-by: Dmitry Vyukov <dvyukov@...gle.com>
>> Cc: Lauro Ramos Venancio <lauro.venancio@...nbossa.org>
>> Cc: Aloisio Almeida Jr <aloisio.almeida@...nbossa.org>
>> Cc: Samuel Ortiz <sameo@...ux.intel.com>
>> Signed-off-by: Cong Wang <xiyou.wangcong@...il.com>
> 
> Ping...
> 
> David, this patch seems still not applied, I guess you expect NFC
> maintainer to take it, but this doesn't happen. Could you take it?

The NFC maintainer needs to take this, ping them explicitly if
you have to.

Thanks.