linux-kernel - Re: [PATCH 5/5] HID: sony_remove: manually unregister leds

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Date:   Thu, 26 Jan 2023 09:32:34 +0100
From:   Sven Eckelmann <sven@...fation.org>
To:     Jiri Kosina <jikos@...nel.org>,
        Benjamin Tissoires <benjamin.tissoires@...hat.com>,
        Hanno Zulla <kontakt@...no.de>,
        Carlo Caione <carlo@...lessm.com>, Pavel Machek <pavel@....cz>,
        Lee Jones <lee@...nel.org>,
        Roderick Colenbrander <roderick.colenbrander@...y.com>,
        Pietro Borrello <borrello@...g.uniroma1.it>
Cc:     linux-leds@...r.kernel.org,
        Cristiano Giuffrida <c.giuffrida@...nl>,
        "Bos, H.J." <h.j.bos@...nl>, Jakob Koschel <jkl820.git@...il.com>,
        linux-input@...r.kernel.org, linux-kernel@...r.kernel.org,
        Jiri Kosina <jkosina@...e.cz>,
        Roderick Colenbrander <roderick@...kai.com>,
        Pietro Borrello <borrello@...g.uniroma1.it>
Subject: Re: [PATCH 5/5] HID: sony_remove: manually unregister leds

On Thursday, 26 January 2023 01:24:57 CET Pietro Borrello wrote:
> Unregister the LED controller before device removal, as
> sony_led_set_brightness() may schedule sc->state_worker
> after the structure has been freed, causing a use-after-free.
> 
> Fixes: 0a286ef27852 ("HID: sony: Add LED support for Sixaxis/Dualshock3 USB")
> Signed-off-by: Pietro Borrello <borrello@...g.uniroma1.it>
> ---
>  drivers/hid/hid-sony.c | 8 ++++++++
>  1 file changed, 8 insertions(+)


Reviewed-by: Sven Eckelmann <sven@...fation.org>

Thanks,
	Sven

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