linux-ext4 - Re: [PATCH 2/2] ext2fs: Fix off-by-one in dx_grow

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Message-ID: <20200410043213.GL45598@mit.edu>
Date:   Fri, 10 Apr 2020 00:32:13 -0400
From:   "Theodore Y. Ts'o" <tytso@....edu>
To:     Jan Kara <jack@...e.cz>
Cc:     linux-ext4@...r.kernel.org
Subject: Re: [PATCH 2/2] ext2fs: Fix off-by-one in dx_grow_tree()

On Mon, Mar 30, 2020 at 11:09:32AM +0200, Jan Kara wrote:
> There is an off-by-one error in dx_grow_tree() when checking whether we
> can add another level to the tree. Thus we can grow tree too much
> leading to possible crashes in the library or corrupted filesystem. Fix
> the bug.
> 
> Signed-off-by: Jan Kara <jack@...e.cz>

Applied, thanks.

					- Ted