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 v5.15.46 by commit 27f672af28a8e9b783ff7f0eaf7ef2fbd5a2f4ba. For more details please see the references link.