netdev - Re: [v2 PATCH 4/4] ixgbe: Fix use after free on module remove

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Message-Id: <20120503.042227.360345661727432549.davem@davemloft.net>
Date:	Thu, 03 May 2012 04:22:27 -0400 (EDT)
From:	David Miller <davem@...emloft.net>
To:	alexander.h.duyck@...el.com
Cc:	netdev@...r.kernel.org, jeffrey.t.kirsher@...el.com,
	edumazet@...gle.com
Subject: Re: [v2 PATCH 4/4] ixgbe: Fix use after free on module remove

From: Alexander Duyck <alexander.h.duyck@...el.com>
Date: Thu, 03 May 2012 00:19:14 -0700

> While testing the TCP changes I had to fix an issue in order to be able to
> load and unload the module.
> 
> The recent patch that added thermal sensor support added a use after free
> bug on module unload with an 82598 adapter in the system.  To resolve the
> issue I have updated the code so that when we free the info_kobj we set it
> back to NULL.
> 
> I suspect there are likely other bugs present, but I will leave that for
> another patch that can undergo more testing.
> 
> I am submitting this directly to net-next since this fixes a fairly serious
> bug that will lock up the ixgbe module until the system is rebooted.
> 
> Signed-off-by: Alexander Duyck <alexander.h.duyck@...el.com>

Applied.
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