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Date: Mon, 26 Feb 2024 14:50:44 +0100
From: Raphael Gallais-Pou <raphael.gallais-pou@...s.st.com>
To: Katya Orlova <e.orlova@...ras.ru>
CC: Yannick Fertre <yannick.fertre@...s.st.com>,
        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>
Subject: 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


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