linux-kernel - Re: [PATCH v9 02/17] platform/x86: dell-wmi: increase severity of some failures

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Date:   Tue, 17 Oct 2017 20:42:18 +0200
From:   Pali Rohár <pali.rohar@...il.com>
To:     Mario Limonciello <mario.limonciello@...l.com>
Cc:     dvhart@...radead.org, Andy Shevchenko <andy.shevchenko@...il.com>,
        LKML <linux-kernel@...r.kernel.org>,
        platform-driver-x86@...r.kernel.org,
        Andy Lutomirski <luto@...nel.org>, quasisec@...gle.com,
        rjw@...ysocki.net, mjg59@...gle.com, hch@....de,
        Greg KH <greg@...ah.com>, Alan Cox <gnomes@...rguk.ukuu.org.uk>
Subject: Re: [PATCH v9 02/17] platform/x86: dell-wmi: increase severity of
 some failures

On Tuesday 17 October 2017 13:21:46 Mario Limonciello wrote:
> There is a lot of error checking in place for the format of the WMI
> descriptor buffer, but some of the potentially raised issues should
> be considered critical failures.
> 
> If the buffer size or header don't match, this is a good indication
> that the buffer format changed in a way that the rest of the data
> should not be relied upon.
> 
> For the remaining data set vectors, continue to notate a warning
> in undefined results, but as those are fields that the descriptor
> intended to refer to other applications, don't fail if they're new
> values.
> 
> Signed-off-by: Mario Limonciello <mario.limonciello@...l.com>
> Reviewed-by: Edward O'Callaghan <quasisec@...gle.com>

Reviewed-by: Pali Rohár <pali.rohar@...il.com>

-- 
Pali Rohár
pali.rohar@...il.com