linux-kernel - Re: [PATCH] net, TTY: initialize tty->driver

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Message-ID: <20121005162531.GA15434@kroah.com>
Date:	Fri, 5 Oct 2012 09:25:31 -0700
From:	Greg KH <gregkh@...uxfoundation.org>
To:	Sasha Levin <sasha.levin@...cle.com>
Cc:	samuel@...tiz.org, davem@...emloft.net, jslaby@...e.cz,
	alan@...ux.intel.com, levinsasha928@...il.com, davej@...hat.com,
	linux-kernel@...r.kernel.org, netdev@...r.kernel.org
Subject: Re: [PATCH] net, TTY: initialize tty->driver_data before usage

On Thu, Oct 04, 2012 at 08:01:21PM -0400, Sasha Levin wrote:
> Commit 9c650ffc ("TTY: ircomm_tty, add tty install") split _open() to
> _install() and _open(). It also moved the initialization of driver_data
> out of open(), but never added it to install() - causing a NULL ptr
> deref whenever the driver was used.
> 
> Signed-off-by: Sasha Levin <sasha.levin@...cle.com>
> Acked-by: Jiri Slaby <jslaby@...e.cz>
> ---
>  net/irda/ircomm/ircomm_tty.c | 2 ++
>  1 file changed, 2 insertions(+)

Nice catch, now applied.

greg k-h
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