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Date: Wed, 1 Feb 2017 20:56:28 -0500
From: "Theodore Ts'o" <tytso@mit.edu>
To: Sahitya Tummala <stummala@codeaurora.org>
Cc: Jan Kara <jack@suse.com>, linux-ext4@vger.kernel.org,
        linux-kernel@vger.kernel.org
Subject: Re: [PATCH] jbd2: Fix use after free in kjournald2()
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        Sahitya Tummala <stummala@codeaurora.org>, Jan Kara <jack@suse.com>,
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On Wed, Feb 01, 2017 at 11:01:51PM +0530, Sahitya Tummala wrote:
> Below is the synchronization issue between unmount and kjournald2
> contexts, which results into use after free issue in kjournald2().
> Fix this issue by using journal->j_state_lock to synchronize the
> wait_event() done in journal_kill_thread() and the wake_up() done
> in kjournald2().

Thanks, applied.

					- Ted