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

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Message-ID: <yt9dh6x6n4tq.fsf@linux.ibm.com>
Date:   Wed, 04 Jan 2023 08:20:49 +0100
From:   Sven Schnelle <svens@...ux.ibm.com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
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

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?

Thanks
Sven