Re: [PATCH 2/3] ext4: fix potential race between s_group_info online resizing and access

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