linux-kernel - Re: [PATCH] mailbox: mailbox-test: set tdev->signal to NULL after freeing

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Date:	Mon, 6 Jun 2016 10:39:32 +0100
From:	Sudeep Holla <sudeep.holla@....com>
To:	Lee Jones <lee.jones@...aro.org>,
	Jassi Brar <jaswinder.singh@...aro.org>
Cc:	Sudeep Holla <sudeep.holla@....com>, linux-kernel@...r.kernel.org,
	Jassi Brar <jassisinghbrar@...il.com>
Subject: Re: [PATCH] mailbox: mailbox-test: set tdev->signal to NULL after
 freeing

Hi Jassi, Lee,

On 24/05/16 17:12, Sudeep Holla wrote:
> tdev->signal is not set NULL after it's freed. This will cause random
> exceptions when the stale pointer is accessed after tdev->signal is
> freed. Also, since tdev->signal allocation is skipped the next time
> it's written, this leads to continuous fault finally leading to the
> total death of the system.
>
> Cc: Lee Jones <lee.jones@...aro.org>
> Cc: Jassi Brar <jassisinghbrar@...il.com>

Can you review this ?

-- 
Regards,
Sudeep