linux-kernel - Re: [PATCH] tty: plug a use-after-free in TIOCGETD ioctl

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Date:	Thu, 7 Jan 2016 10:21:38 -0800
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	Peter Hurley <peter@...leysoftware.com>
Cc:	Mateusz Guzik <mguzik@...hat.com>, Jiri Slaby <jslaby@...e.com>,
	stable@...r.kernel.org, linux-kernel@...r.kernel.org,
	security@...nel.org, milos@...hat.com, linux-serial@...r.kernel.org
Subject: Re: [PATCH] tty: plug a use-after-free in TIOCGETD ioctl

On Thu, Jan 07, 2016 at 09:38:56AM -0800, Peter Hurley wrote:
> On 01/07/2016 09:08 AM, Greg Kroah-Hartman wrote:
> > On Thu, Jan 07, 2016 at 08:38:04AM -0800, Peter Hurley wrote:
> >> On 01/07/2016 08:14 AM, Greg Kroah-Hartman wrote:
> >>> Adding Peter and linux-serial to the list here, as Peter has been doing
> >>> a ton of work in this area...
> >>>
> >>> Peter, does this seem sane with the tty locking rules?
> >>>
> >>> thanks,
> >>>
> >>> greg k-h
> >>
> >> No.
> >>
> >> Fix for this is right here:
> >> http://lkml.iu.edu/hypermail/linux/kernel/1511.3/03045.html
> > 
> > Ah, I thought I had seen this before, thanks for the reminder :)
> > 
> > But, I didn't apply that series for some reason, was it waiting on
> > something before that?  Or did I just miss it with the holliday break?
> 
> That series is good to go, and in fact fixes a rash of crash
> reports which occur on kernels since 3.10, but just started showing
> up now (triggered by some interaction between consoles over terminal servers
> and systemd).
> 
> I didn't bother you about it because it seemed like you were busy.
> Do you need me to resend this series (and the other 6 series' plus
> misc fixes)?

Sure, a resend would be good to have, if you can do that.

thanks,

greg k-h