linux-kernel - Re: [PATCH v3] drm: Fix potential overflow issue in event

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Message-ID: <Z_YSo9YBbsLaYzkO@black.fi.intel.com>
Date: Wed, 9 Apr 2025 09:24:35 +0300
From: Raag Jadav <raag.jadav@...el.com>
To: jiangfeng@...inos.cn
Cc: maarten.lankhorst@...ux.intel.com, mripard@...nel.org,
	tzimmermann@...e.de, airlied@...il.com, simona@...ll.ch,
	rodrigo.vivi@...el.com, andrealmeid@...lia.com,
	christian.koenig@....com, dri-devel@...ts.freedesktop.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3] drm: Fix potential overflow issue in event_string
 array

On Wed, Apr 09, 2025 at 09:46:33AM +0800, jiangfeng@...inos.cn wrote:
> From: Feng Jiang <jiangfeng@...inos.cn>
> 
> When calling scnprintf() to append recovery method to event_string,
> the second argument should be `sizeof(event_string) - len`, otherwise
> there is a potential overflow problem.
> 
> Fixes: b7cf9f4ac1b8 ("drm: Introduce device wedged event")
> Signed-off-by: Feng Jiang <jiangfeng@...inos.cn>

Reviewed-by: Raag Jadav <raag.jadav@...el.com>

Thanks for the fix.