linux-kernel - Re: [PATCH v2 0/2] fix out-of-bounds access when specifying invalid console

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Message-ID: <Y8lOAVTBlay2QrYC@kroah.com>
Date:   Thu, 19 Jan 2023 15:04:49 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     Sven Schnelle <svens@...ux.ibm.com>
Cc:     Jiri Slaby <jirislaby@...nel.org>,
        Christian Borntraeger <borntraeger@...ibm.com>,
        linux-kernel@...r.kernel.org, linux-s390@...r.kernel.org
Subject: Re: [PATCH v2 0/2] fix out-of-bounds access when specifying invalid
 console

On Wed, Jan 04, 2023 at 08:20:49AM +0100, Sven Schnelle wrote:
> Sven Schnelle <svens@...ux.ibm.com> writes:
> 
> > Hi,
> >
> > these two patches fix a crash in the tty driver when a user specifies an
> > invalid console like 'console=tty3000'. The first patch adds a check to
> > tty_driver_lookup_tty(), the second one prevents that such a console gets
> > registered in the vt driver.
> >
> > Changes in v2:
> > - trim commit message in first patch
> > - add second patch as suggested by Jiri Slaby
> >
> > Sven Schnelle (2):
> >   tty: fix out-of-bounds access in tty_driver_lookup_tty()
> >   tty/vt: prevent registration of console with invalid number
> >
> >  drivers/tty/tty_io.c | 8 +++++---
> >  drivers/tty/vt/vt.c  | 6 ++++++
> >  2 files changed, 11 insertions(+), 3 deletions(-)
> 
> Gentle ping... I couldn't find that this was applied anywhere?

Sorry, still digging out of a lot of patches...