linux-kernel - Re: [PATCH v2] udf: udftime: prevent overflow in udf_disk_stamp_to

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Message-ID: <703e52b1-82f0-13fb-94b8-2d6ff16598e8@omp.ru>
Date: Wed, 27 Mar 2024 18:15:08 +0300
From: Sergey Shtylyov <s.shtylyov@....ru>
To: Roman Smirnov <r.smirnov@....ru>, Jan Kara <jack@...e.com>
CC: <linux-kernel@...r.kernel.org>, <lvc-project@...uxtesting.org>, Jan Kara
	<jack@...e.cz>
Subject: Re: [PATCH v2] udf: udftime: prevent overflow in
 udf_disk_stamp_to_time()

On 3/27/24 4:27 PM, Roman Smirnov wrote:

> An overflow can occur in a situation where src.centiseconds
> takes the value of 255. This situation is unlikely, but there
> is no validation check anywere in the code.
> 
> Found by Linux Verification Center (linuxtesting.org) with Svace.
> 
> Suggested-by: Jan Kara <jack@...e.cz>
> Signed-off-by: Roman Smirnov <r.smirnov@....ru>

Reviewed-by: Sergey Shtylyov <s.shtylyov@....ru>

[...]

MBR, Sergey