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Subject: [stable] cdrom: fix improper type cast, which can leat to
 information leak.
From: Ben Hutchings <ben.hutchings@codethink.co.uk>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: stable <stable@vger.kernel.org>, Young_X <YangX92@hotmail.com>
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Date: Tue, 13 Nov 2018 20:54:03 +0000
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Please pick this commit for all stable branches:

commit e4f3aa2e1e67bb48dfbaaf1cad59013d5a5bc276
Author: Young_X <YangX92@hotmail.com>
Date:   Wed Oct 3 12:54:29 2018 +0000

    cdrom: fix improper type cast, which can leat to information leak.

Ben.

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Ben Hutchings, Software Developer                         Codethink Ltd
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