linux-kernel - Re: TR: [PATCH v4] drm/stm: Avoid use-after-free issues with crtc and plane

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Message-ID: <902e6037-9ba9-41ab-bfd0-a25fe2c26bce@foss.st.com>
Date: Fri, 21 Jun 2024 15:32:53 +0200
From: Yannick FERTRE <yannick.fertre@...s.st.com>
To: Katya Orlova <e.orlova@...ras.ru>
CC: Philippe Cornu <philippe.cornu@...s.st.com>,
        David Airlie
	<airlied@...il.com>, Daniel Vetter <daniel@...ll.ch>,
        Maxime Coquelin
	<mcoquelin.stm32@...il.com>,
        Alexandre Torgue <alexandre.torgue@...s.st.com>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        <dri-devel@...ts.freedesktop.org>,
        <linux-stm32@...md-mailman.stormreply.com>,
        <linux-arm-kernel@...ts.infradead.org>, <linux-kernel@...r.kernel.org>,
        <lvc-project@...uxtesting.org>,
        Raphael Gallais-Pou
	<raphael.gallais-pou@...s.st.com>
Subject: Re: TR: [PATCH v4] drm/stm: Avoid use-after-free issues with crtc and
 plane

Hi Katya,

thanks for the patch.

Tested-by: Yannick Fertre <yannick.fertre@...s.st.com>

BR

Le 19/03/2024 à 14:47, Philippe CORNU - foss a écrit :
> zut, déjà un acked-by de RGA...
> tu confirmes que je prends?
> Philippe
> ________________________________________
> De : Raphael GALLAIS-POU - foss
> Envoyé : lundi 26 février 2024 14:50
> À : Katya Orlova
> Cc : Yannick FERTRE - foss; Philippe CORNU - foss; David Airlie; Daniel Vetter; Maxime Coquelin; Alexandre TORGUE - foss; Philipp Zabel; dri-devel@...ts.freedesktop.org; linux-stm32@...md-mailman.stormreply.com; linux-arm-kernel@...ts.infradead.org; linux-kernel@...r.kernel.org; lvc-project@...uxtesting.org
> Objet : Re: [PATCH v4] drm/stm: Avoid use-after-free issues with crtc and plane
>
> On 2/16/24 13:50, Katya Orlova wrote:
>> ltdc_load() calls functions drm_crtc_init_with_planes(),
>> drm_universal_plane_init() and drm_encoder_init(). These functions
>> should not be called with parameters allocated with devm_kzalloc()
>> to avoid use-after-free issues [1].
>>
>> Use allocations managed by the DRM framework.
>>
>> Found by Linux Verification Center (linuxtesting.org).
>>
>> [1]
>> https://lore.kernel.org/lkml/u366i76e3qhh3ra5oxrtngjtm2u5lterkekcz6y2jkndhuxzli@diujon4h7qwb/
>>
>> Signed-off-by: Katya Orlova <e.orlova@...ras.ru>
> Hi Katya,
>
>
> Thanks for this submission.
>
> Acked-by: Raphaël Gallais-Pou <raphael.gallais-pou@...s.st.com>
>
>
> Regards,
> Raphaël
>