linux-kernel - Re: [PATCH 0/2] drm/panic: Avoid crash from invalid CONFIG_DRM_PANIC

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] [day] [month] [year] [list]

Message-ID: <b2197fa6-ab12-41ee-88fd-c57f6caa681e@igalia.com>
Date: Fri, 9 Jan 2026 08:55:37 +0000
From: Tvrtko Ursulin <tvrtko.ursulin@...lia.com>
To: Nathan Chancellor <nathan@...nel.org>,
 Jocelyn Falempe <jfalempe@...hat.com>,
 Javier Martinez Canillas <javierm@...hat.com>,
 Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
 Maxime Ripard <mripard@...nel.org>, Thomas Zimmermann <tzimmermann@...e.de>
Cc: dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/2] drm/panic: Avoid crash from invalid
 CONFIG_DRM_PANIC_SCREEN values


On 06/01/2026 06:19, Nathan Chancellor wrote:
> Hi all,
> 
> This series addresses a couple of issues I noticed when accessing
> /sys/module/drm/parameters/panic_screen on my Arch Linux machines, which
> have "qr_code" as the value of CONFIG_DRM_PANIC_SCREEN. This happened to
> be unsupported in my configuration since I was missing some Rust
> dependencies in my environment for CONFIG_DRM_PANIC_SCREEN_QR_CODE,
> resulting in a kernel crash. Patch one addresses the root cause of the
> crash and patch two addresses an inconsistency I noticed between this
> new code and the documented value for CONFIG_DRM_PANIC_SCREEN in Kconfig
> for qr_code.
> 
> If there are any issues, please let me know.

I've pushed the series to drm-misc-next, thanks for fixing it up!

Regards,

Tvrtko

> 
> ---
> Nathan Chancellor (2):
>        drm/panic: Ensure drm_panic_type is initialized to a valid value
>        drm/panic: Fix expected string for QR_CODE in drm_panic_type_map
> 
>   drivers/gpu/drm/drm_panic.c | 11 +++++++----
>   1 file changed, 7 insertions(+), 4 deletions(-)
> ---
> base-commit: 349d4efadc1f831ebc0b872ba1e3a2b7dd58b72b
> change-id: 20260105-drm_panic-handle-invalid-drm_panic_screen-097e49e21c49
> 
> Best regards,
> --
> Nathan Chancellor <nathan@...nel.org>
>