md/bitmap: don't set sb values if can't pass sanity check
This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v4.19.247 by commit 422e8f7ba1e08c8e0e88d375bcb550bc2bbfe96d. For more details please see the references link.