linux-kernel - Re: [stable/4.14.y PATCH 2/3] mmc: Fix null pointer dereference in mmc_init

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Message-ID: <20190513201235.GB17404@kroah.com>
Date:   Mon, 13 May 2019 22:12:35 +0200
From:   Greg KH <gregkh@...uxfoundation.org>
To:     Raul E Rangel <rrangel@...omium.org>
Cc:     stable@...r.kernel.org, linux-mmc@...r.kernel.org,
        djkurtz@...gle.com, adrian.hunter@...el.com, zwisler@...omium.org,
        Linus Walleij <linus.walleij@...aro.org>,
        linux-kernel@...r.kernel.org, Ulf Hansson <ulf.hansson@...aro.org>
Subject: Re: [stable/4.14.y PATCH 2/3] mmc: Fix null pointer dereference in
 mmc_init_request

On Mon, May 13, 2019 at 11:55:20AM -0600, Raul E Rangel wrote:
> It is possible for queuedata to be cleared in mmc_cleanup_queue before
> the request has been started. This will result in dereferencing a null
> pointer.
> 
> Signed-off-by: Raul E Rangel <rrangel@...omium.org>
> ---
> 
>  drivers/mmc/core/queue.c | 10 ++++++++--
>  1 file changed, 8 insertions(+), 2 deletions(-)

<formletter>

This is not the correct way to submit patches for inclusion in the
stable kernel tree.  Please read:
    https://www.kernel.org/doc/html/latest/process/stable-kernel-rules.html
for how to do this properly.

</formletter>