From: Greg KH <greg@kroah.com>
To: Johan Hovold <johan@kernel.org>
Cc: linux-usb@vger.kernel.org,
Andrey Konovalov <andreyknvl@google.com>,
linux-kernel@vger.kernel.org, stable <stable@vger.kernel.org>
Subject: Re: [PATCH 1/2] USB: serial: console: fix use-after-free on disconnect
Date: Wed, 4 Oct 2017 16:39:35 +0200 [thread overview]
Message-ID: <20171004143935.GD13707@kroah.com> (raw)
In-Reply-To: <20171004090113.24218-2-johan@kernel.org>
On Wed, Oct 04, 2017 at 11:01:12AM +0200, Johan Hovold wrote:
> A clean-up patch removing removing two redundant NULL-checks from the
> console disconnect handler inadvertently also removed a third check.
> This could lead to the struct usb_serial being prematurely freed by the
> console code when a driver accepts but does not register any ports for
> an interface which also lacks endpoint descriptors.
>
> Fixes: 0e517c93dc02 ("USB: serial: console: clean up sanity checks")
> Cc: stable <stable@vger.kernel.org> # 4.11
> Reported-by: Andrey Konovalov <andreyknvl@google.com>
> Signed-off-by: Johan Hovold <johan@kernel.org>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
next prev parent reply other threads:[~2017-10-04 14:39 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-10-04 9:01 [PATCH 0/2] USB: serial: console: fix two use-after-free bugs Johan Hovold
2017-10-04 9:01 ` [PATCH 1/2] USB: serial: console: fix use-after-free on disconnect Johan Hovold
2017-10-04 14:39 ` Greg KH [this message]
2017-10-07 8:56 ` Jaejoong Kim
2017-10-09 10:41 ` Johan Hovold
2017-10-09 11:05 ` Andrey Konovalov
2017-10-09 11:10 ` Johan Hovold
2017-10-04 9:01 ` [PATCH 2/2] USB: serial: console: fix use-after-free after failed setup Johan Hovold
2017-10-04 14:39 ` Greg KH
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