jfs: prevent NULL deref in diFree
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 v5.17.3 by commit 2e0e1de4f7a17e0886524c1d6701b8e2bf5a7363. For more details please see the references link.