linux-kernel - Re: [PATCH v3 7/7] drm/bridge: prevent encoder chain changes in pre_enable/post

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <0c0b84319f96b5d2a32bbae473e5758e@kernel.org>
Date: Wed, 29 Oct 2025 08:55:20 +0000
From: "Maxime Ripard" <mripard@...nel.org>
To: "Luca Ceresoli" <luca.ceresoli@...tlin.com>
Cc: dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org, "Andrzej
 Hajda" <andrzej.hajda@...el.com>, "David Airlie" <airlied@...il.com>, "Hui
 Pu" <Hui.Pu@...ealthcare.com>, "Jernej Skrabec" <jernej.skrabec@...il.com>, "Jonas
 Karlman" <jonas@...boo.se>, "Laurent Pinchart" <Laurent.pinchart@...asonboard.com>, "Maarten
 Lankhorst" <maarten.lankhorst@...ux.intel.com>, "Maxime Ripard" <mripard@...nel.org>, "Neil
 Armstrong" <neil.armstrong@...aro.org>, "Robert Foss" <rfoss@...nel.org>, "Simona
 Vetter" <simona@...ll.ch>, "Thomas Petazzoni" <thomas.petazzoni@...tlin.com>, "Thomas
 Zimmermann" <tzimmermann@...e.de>
Subject: Re: [PATCH v3 7/7] drm/bridge: prevent encoder chain changes in
 pre_enable/post_disable

On Thu, 9 Oct 2025 13:39:02 +0200, Luca Ceresoli wrote:
> Take the encoder chain mutex while iterating over the encoder chain in
> drm_atomic_bridge_chain_pre_enable() and
> drm_atomic_bridge_chain_post_disable() to ensure the lists won't change
> while being inspected.
> 
> 
> [ ... ]

Reviewed-by: Maxime Ripard <mripard@...nel.org>

Thanks!
Maxime