linux-kernel - RE: [PATCH net-next,1/1] hyperv: Move wait completion msg code into rndis_filter_halt

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Date:	Sun, 5 Aug 2012 19:16:32 +0000
From:	Haiyang Zhang <haiyangz@...rosoft.com>
To:	David Miller <davem@...emloft.net>
CC:	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	KY Srinivasan <kys@...rosoft.com>,
	"olaf@...fle.de" <olaf@...fle.de>,
	"jasowang@...hat.com" <jasowang@...hat.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"devel@...uxdriverproject.org" <devel@...uxdriverproject.org>
Subject: RE: [PATCH net-next,1/1] hyperv: Move wait completion msg code into
 rndis_filter_halt_device()



> -----Original Message-----
> From: David Miller [mailto:davem@...emloft.net]
> Sent: Friday, August 03, 2012 7:52 PM
> To: Haiyang Zhang
> Cc: netdev@...r.kernel.org; KY Srinivasan; olaf@...fle.de;
> jasowang@...hat.com; linux-kernel@...r.kernel.org;
> devel@...uxdriverproject.org
> Subject: Re: [PATCH net-next,1/1] hyperv: Move wait completion msg code
> into rndis_filter_halt_device()
> 
> From: Haiyang Zhang <haiyangz@...rosoft.com>
> Date: Fri,  3 Aug 2012 12:32:18 -0700
> 
> > We need to wait for send_completion msg before put_rndis_request() at
> > the end of rndis_filter_halt_device(). Otherwise,
> > netvsc_send_completion() may reference freed memory which is
> overwritten, and cause panic.
> >
> > Reported-by: Long Li <longli@...rosoft.com>
> > Reported-by: Jason Wang <jasowang@...hat.com>
> > Signed-off-by: Haiyang Zhang <haiyangz@...rosoft.com>
> 
> This is a bug fix, so applied to 'net'.  Please target your patches properly.
> 
> Don't just be afraid that I'll reject the patch if you target it at 'net', and
> therefore just target everything at 'net-next'.  That is certainly worse.

I see. 

Thanks,
- Haiyang

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