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Date:   Thu, 28 Jan 2021 14:36:20 +0200
From:   Mika Westerberg <mika.westerberg@linux.intel.com>
To:     linux-usb@vger.kernel.org
Cc:     Michael Jamet <michael.jamet@intel.com>,
        Yehezkel Bernat <YehezkelShB@gmail.com>,
        Andreas Noever <andreas.noever@gmail.com>,
        Lukas Wunner <lukas@wunner.de>,
        Mario Limonciello <mario.limonciello@dell.com>,
        "Rafael J. Wysocki" <rjw@rjwysocki.net>,
        Christian Kellner <christian@kellner.me>,
        Len Brown <lenb@kernel.org>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        linux-acpi@vger.kernel.org
Subject: Re: [PATCH 1/6] thunderbolt: Fix possible NULL pointer dereference
 in tb_acpi_add_link()
Message-ID: <20210128123620.GS2542@lahna.fi.intel.com>
References: <20210126155723.9388-1-mika.westerberg@linux.intel.com>
 <20210126155723.9388-2-mika.westerberg@linux.intel.com>
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On Tue, Jan 26, 2021 at 06:57:18PM +0300, Mika Westerberg wrote:
> From: Mario Limonciello <mario.limonciello@dell.com>
> 
> When we walk up the device hierarchy in tb_acpi_add_link() make sure we
> break the loop if the device has no parent. Otherwise we may crash the
> kernel by dereferencing a NULL pointer.
> 
> Fixes: b2be2b05cf3b ("thunderbolt: Create device links from ACPI description")
> Cc: stable@vger.kernel.org
> Signed-off-by: Mario Limonciello <mario.limonciello@dell.com>
> Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>

Applied this one separately to thunderbolt.git/fixes.