linux-kernel - Re: [PATCH] vduse: prevent uninitialized memory accesses

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Message-ID: <20220827065435.GL2030@kadam>
Date:   Sat, 27 Aug 2022 09:54:35 +0300
From:   Dan Carpenter <dan.carpenter@...cle.com>
To:     Maxime Coquelin <maxime.coquelin@...hat.com>
Cc:     linux-kernel@...r.kernel.org,
        virtualization@...ts.linux-foundation.org, elic@...dia.com,
        guanjun@...ux.alibaba.com, parav@...dia.com,
        gautam.dawar@...inx.com, xieyongji@...edance.com,
        jasowang@...hat.com, mst@...hat.com
Subject: Re: [PATCH] vduse: prevent uninitialized memory accesses

On Fri, Aug 26, 2022 at 06:16:05PM +0200, Maxime Coquelin wrote:
> If the VDUSE application provides a smaller config space
> than the driver expects, the driver may use uninitialized
> memory from the stack.
> 
> This patch prevents it by initializing the buffer passed by
> the driver to store the config value.
> 
> Signed-off-by: Maxime Coquelin <maxime.coquelin@...hat.com>

This sounds like it needs a Fixes tag?

regards,
dan carpenter