linux-kernel - Re: [PATCH 1/3] Input: twl4030-vibra: fix sibling-node lookup

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20171211102121.GJ5672@localhost>
Date:   Mon, 11 Dec 2017 11:21:21 +0100
From:   Johan Hovold <johan@...nel.org>
To:     Dmitry Torokhov <dmitry.torokhov@...il.com>
Cc:     linux-input@...r.kernel.org, linux-kernel@...r.kernel.org,
        Johan Hovold <johan@...nel.org>,
        stable <stable@...r.kernel.org>,
        Peter Ujfalusi <peter.ujfalusi@...com>,
        Marek Belisko <marek@...delico.com>
Subject: Re: [PATCH 1/3] Input: twl4030-vibra: fix sibling-node lookup

On Sat, Nov 11, 2017 at 04:43:37PM +0100, Johan Hovold wrote:
> A helper purported to look up a child node based on its name was using
> the wrong of-helper and ended up prematurely freeing the parent of-node
> while searching the whole device tree depth-first starting at the parent
> node.
> 
> Fixes: 64b9e4d803b1 ("input: twl4030-vibra: Support for DT booted kernel")
> Fixes: e661d0a04462 ("Input: twl4030-vibra - fix ERROR: Bad of_node_put() warning")
> Cc: stable <stable@...r.kernel.org>     # 3.7
> Cc: Peter Ujfalusi <peter.ujfalusi@...com>
> Cc: Marek Belisko <marek@...delico.com>
> Signed-off-by: Johan Hovold <johan@...nel.org>
> ---

Just wanted to send a reminder about this series. I believe these bugs
need to be fixes regardless of whether MFD-core eventually provides some
means of avoiding such lookups in cell drivers (i.e. the discussion
which appears to have stalled).

Thanks,
Johan