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

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Message-ID: <1d7eac7c-e0ab-4208-b003-26b818478709@igalia.com>
Date: Wed, 9 Apr 2025 01:03:57 -0300
From: André Almeida <andrealmeid@...lia.com>
To: jiangfeng@...inos.cn
Cc: mripard@...nel.org, christian.koenig@....com, rodrigo.vivi@...el.com,
 dri-devel@...ts.freedesktop.org, raag.jadav@...el.com, simona@...ll.ch,
 maarten.lankhorst@...ux.intel.com, linux-kernel@...r.kernel.org,
 tzimmermann@...e.de, airlied@...il.com
Subject: Re: [PATCH v3] drm: Fix potential overflow issue in event_string
 array

Em 08/04/2025 22:46, jiangfeng@...inos.cn escreveu:
> 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: André Almeida <andrealmeid@...lia.com>