linux-kernel - Re: [PATCH] drivers: crypto: picoxcell_crypto: Fix potential race condition bug

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Message-ID: <20200813113304.GA11888@willow>
Date:   Thu, 13 Aug 2020 12:33:04 +0100
From:   Jamie Iles <jamie@...ieiles.com>
To:     madhuparnabhowmik10@...il.com
Cc:     jamie@...ieiles.com, herbert@...dor.apana.org.au,
        davem@...emloft.net, linux-arm-kernel@...ts.infradead.org,
        linux-crypto@...r.kernel.org, linux-kernel@...r.kernel.org,
        andrianov@...ras.ru, ldv-project@...uxtesting.org
Subject: Re: [PATCH] drivers: crypto: picoxcell_crypto: Fix potential race
 condition bug

On Tue, Aug 11, 2020 at 06:00:24PM +0530, madhuparnabhowmik10@...il.com wrote:
> From: Madhuparna Bhowmik <madhuparnabhowmik10@...il.com>
> 
> engine->stat_irq_thresh was initialized after device_create_file() in
> the probe function, the initialization may race with call to
> spacc_stat_irq_thresh_store() which updates engine->stat_irq_thresh,
> therefore initialize it before creating the file in probe function.
> 
> Found by Linux Driver Verification project (linuxtesting.org).
> 
> Signed-off-by: Madhuparna Bhowmik <madhuparnabhowmik10@...il.com>

Acked-by: Jamie Iles <jamie@...ieiles.com>

Thanks!