linux-kernel - RE: [PATCH 1/2] net/hyperv: Fix data corruption in rndis_filter

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Date:	Fri, 9 Mar 2012 21:55:09 +0000
From:	Haiyang Zhang <haiyangz@...rosoft.com>
To:	David Miller <davem@...emloft.net>
CC:	KY Srinivasan <kys@...rosoft.com>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"devel@...uxdriverproject.org" <devel@...uxdriverproject.org>
Subject: RE: [PATCH 1/2] net/hyperv: Fix data corruption in
 rndis_filter_receive()



> -----Original Message-----
> From: David Miller [mailto:davem@...emloft.net]
> Sent: Friday, March 09, 2012 4:51 PM
> To: Haiyang Zhang
> Cc: KY Srinivasan; netdev@...r.kernel.org; linux-kernel@...r.kernel.org;
> devel@...uxdriverproject.org
> Subject: Re: [PATCH 1/2] net/hyperv: Fix data corruption in
> rndis_filter_receive()
> 
> From: Haiyang Zhang <haiyangz@...rosoft.com>
> Date: Fri,  9 Mar 2012 13:27:16 -0800
> 
> > Limiting the memcpy to be the sizeof(struct rndis_message) can
> > truncate the message if there are Per-Packet-Info or Out-of-Band data.
> >
> > In my earlier patch (commit 45326342), the unnecessary kmap_atomic and
> > kunmap_atomic surrounding this memcpy have been removed because the
> > memory in the receive buffer is always mapped. This memcpy is not
> > necessary either. To fix the bug, I removed the memcpy.
> >
> > Signed-off-by: Haiyang Zhang <haiyangz@...rosoft.com>
> > Reviewed-by: K. Y. Srinivasan <kys@...rosoft.com>
> 
> Well, where the heck is patch 2/2?

It's still in the mail server's send queue. This happens sometimes on our mail server.
But it should reach you in half hour or so...

- Haiyang

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