linux-kernel - Re: [PATCH] acpi: acpica: dsutils: fixanoff-by-one index

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Message-ID: <20170607171814.zjvrikbjonp5n3gd@macchiaveli>
Date:   Wed, 7 Jun 2017 19:18:14 +0200
From:   Seraphime Kirkovski <kirkseraph@...il.com>
To:     "Moore, Robert" <robert.moore@...el.com>
Cc:     devel@...ica.org, afael.j.wysocki@...el.com,
        linux-acpi@...r.kernel.org, rafael.j.wysocki@...el.com,
        lv.zheng@...el.com, lenb@...nel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] acpi:  acpica:  dsutils: fixanoff-by-one index

On Wed, Jun 07, 2017 at 03:14:46PM +0000, Moore, Robert wrote:
> I believe that the rationale for this is that at that point in the code, it is *guaranteed* that there is at least one operand; therefore the -1 would always be valid.
>
> In the end, we just deleted that call to 
> acpi_db_display_argument_object.
> 
> I don't know if this change has made it into Linux yet.
> 
The latest rc actually produces the UBSAN splat in my previous message.
So I suppose, I have some buggy hardware/firmware.

Thanks,
Seraph