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Date:   Thu, 20 Feb 2020 00:13:08 -0500
From:   "Theodore Y. Ts'o" <tytso@mit.edu>
To:     Suraj Jitindar Singh <surajjs@amazon.com>
Cc:     linux-ext4@vger.kernel.org, sblbir@amazon.com,
        sjitindarsingh@gmail.com, stable@vger.kernel.org
Subject: Re: [PATCH 2/3] ext4: fix potential race between s_group_info online
 resizing and access
Message-ID: <20200220051308.GF476845@mit.edu>
References: <20200219030851.2678-1-surajjs@amazon.com>
 <20200219030851.2678-3-surajjs@amazon.com>
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On Tue, Feb 18, 2020 at 07:08:50PM -0800, Suraj Jitindar Singh wrote:
> During an online resize an array of pointers to s_group_info gets replaced
> so it can get enlarged. If there is a concurrent access to the array in
> ext4_get_group_info() and this memory has been reused then this can lead to
> an invalid memory access.
> 
> Link: https://bugzilla.kernel.org/show_bug.cgi?id=206443
> Signed-off-by: Suraj Jitindar Singh <surajjs@amazon.com>
> Cc: stable@vger.kernel.org

Thanks, applied.

					- Ted