linux-kernel - Re: [PATCH] e1000 driver RX race condition fixed

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Message-ID: <507EEEE6.9040008@computer.org>
Date:	Wed, 17 Oct 2012 19:46:14 +0200
From:	Jan Ceuleers <jan.ceuleers@...puter.org>
To:	Dmitry Fleytman <dmitry@...nix.com>
CC:	linux-kernel@...r.kernel.org, e1000-devel@...ts.sourceforge.net,
	Chris Webb <chris.webb@...stichosts.com>,
	Richard Davies <richard.davies@...stichosts.com>
Subject: Re: [PATCH] e1000 driver RX race condition fixed

On 10/14/2012 07:19 PM, Dmitry Fleytman wrote:
> There is a race condition in e1000 driver.
> It enables HW receive before RX rings initalization.
> In case of specific timing this may lead to host memory corruption
> due to DMA write to arbitrary memory location.
> Following patch fixes this issue by reordering initialization steps.
> 
> Other Intel network drivers does not seem to have this issue.
> 
> Dmitry Fleytman (1):
>   RX initialization sequence fixed - enable RX after corresponding ring
>     initialization only
> 
>  drivers/net/ethernet/intel/e1000/e1000_ethtool.c |    9 +++++----
>  drivers/net/ethernet/intel/e1000/e1000_main.c    |   18 ++++++++++++++++--
>  2 files changed, 21 insertions(+), 6 deletions(-)
> 

Would it be at all possible to copy netdev on networking-related
discussions?
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