Re: [PATCH 1/3] ext4: sanity check the block and cluster size at mount time

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On 11/18/2016 06:26 AM, Theodore Ts'o wrote:
> If the block size or cluster size is insane, reject the mount.  This
> is important for security reasons (although we shouldn't be just
> depending on this check).
> 
> Ref: http://www.securityfocus.com/archive/1/539661
> Ref: https://bugzilla.redhat.com/show_bug.cgi?id=1332506
> Reported-by: Borislav Petkov <bp@xxxxxxxxx>
> Reported-by: Nikolay Borisov <kernel@xxxxxxxx>
> Signed-off-by: Theodore Ts'o <tytso@xxxxxxx>
> Cc: stable@xxxxxxxxxxxxxxx

I just tested with the 3 patches applied on 4.9-rc4 and could still
reproduce the issue.
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