netdev - Re: [PATCH v2] bonding: fix race condition in bonding_store_slaves

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Message-Id: <20121129.131410.2283343599770817054.davem@davemloft.net>
Date:	Thu, 29 Nov 2012 13:14:10 -0500 (EST)
From:	David Miller <davem@...emloft.net>
To:	fubar@...ibm.com
Cc:	nikolay@...hat.com, netdev@...r.kernel.org, andy@...yhouse.net
Subject: Re: [PATCH v2] bonding: fix race condition in
 bonding_store_slaves_active

From: Jay Vosburgh <fubar@...ibm.com>
Date: Thu, 29 Nov 2012 09:37:56 -0800

> Nikolay Aleksandrov <nikolay@...hat.com> wrote:
> 
>> Race between bonding_store_slaves_active() and slave manipulation 
>> functions. The bond_for_each_slave use in bonding_store_slaves_active()
>> is not protected by any synchronization mechanism.
>> NULL pointer dereference is easy to reach.
>> Fixed by acquiring the bond->lock for the slave walk.
>>
>> v2: Make description text < 75 columns
>>
>>Signed-off-by: Nikolay Aleksandrov <nikolay@...hat.com>
> 
> Signed-off-by: Jay Vosburgh <fubar@...ibm.com>

Applied.
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