linux-kernel - Re: [PATCH v2] thermal: core: Fix use-after-free in thermal_zone_device

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Date:   Mon, 24 Aug 2020 11:34:22 +0200
From:   Daniel Lezcano <daniel.lezcano@...aro.org>
To:     Dmitry Osipenko <digetx@...il.com>,
        Zhang Rui <rui.zhang@...el.com>,
        Amit Kucheria <amitk@...nel.org>
Cc:     linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] thermal: core: Fix use-after-free in
 thermal_zone_device_unregister()

On 18/08/2020 01:58, Dmitry Osipenko wrote:
> The user-after-free bug in thermal_zone_device_unregister() is reported by
> KASAN. It happens because struct thermal_zone_device is released during of
> device_unregister() invocation, and hence the "tz" variable shouldn't be
> touched by thermal_notify_tz_delete(tz->id).
> 
> Fixes: 55cdf0a283b8 ("thermal: core: Add notifications call in the framework")
> Signed-off-by: Dmitry Osipenko <digetx@...il.com>
> ---

Applied, thanks !


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