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Date:   Fri, 7 May 2021 18:49:54 -0400
From:   "Theodore Ts'o" <tytso@mit.edu>
To:     Artem Blagodarenko <artem.blagodarenko@gmail.com>
Cc:     linux-ext4@vger.kernel.org, adilger.kernel@dilger.ca,
        Alexey Lyashkov <c17817@cray.com>,
        Artem Blagodarenko <c17828@cray.com>
Subject: Re: [PATCH] e2image: fix overflow in l2 table processing
Message-ID: <YJXEEhxkGdMEdRGQ@mit.edu>
References: <20210422052448.29802-1-artem.blagodarenko@gmail.com>
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On Thu, Apr 22, 2021 at 01:24:48AM -0400, Artem Blagodarenko wrote:
> For a large partition during e2image capture process
> it is possible to overflow offset at multiply operation.
> This leads to the situation when data is written to the
> position at the start of the image instead of the image end.
> 
> Let's use the right cast to avoid integer overflow.
> 
> Signed-off-by: Alexey Lyashkov <c17817@cray.com>
> Signed-off-by: Artem Blagodarenko <c17828@cray.com>
> HPE-bug-id: LUS-9368

Thanks, applied.

					- Ted