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Date:   Thu, 23 Jul 2020 13:18:27 +0200
From:   Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To:     Miquel Raynal <miquel.raynal@bootlin.com>,
        Richard Weinberger <richard@nod.at>,
        Vignesh Raghavendra <vigneshr@ti.com>
Cc:     linux-mtd@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] mtd: properly check all write ioctls for permissions
Message-ID: <20200723111827.GA1963557@kroah.com>
References: <20200716115346.GA1667288@kroah.com>
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On Thu, Jul 16, 2020 at 01:53:46PM +0200, Greg Kroah-Hartman wrote:
> When doing a "write" ioctl call, properly check that we have permissions
> to do so before copying anything from userspace or anything else so we
> can "fail fast".  This includes also covering the MEMWRITE ioctl which
> previously missed checking for this.
> 
> Cc: Miquel Raynal <miquel.raynal@bootlin.com>
> Cc: Richard Weinberger <richard@nod.at>
> Cc: Vignesh Raghavendra <vigneshr@ti.com>
> Cc: stable <stable@kernel.org>
> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
> ---
>  drivers/mtd/mtdchar.c | 54 +++++++++++++++++++++++++++++++++++--------
>  1 file changed, 45 insertions(+), 9 deletions(-)

Any objection to this patch getting into 5.8-final?

I can take this through one of my trees if you all give me an ack :)

thanks,

greg k-h