nilfs2: fix use-after-free bug of ns_writer on remount
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 v5.15.79 by commit afbd1188382a75f6cfe22c0b68533f7f9664f182. For more details please see the references link.