fs: jfs: fix shift-out-of-bounds in dbAllocAG
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 v4.9.337 by commit d3b486946a4e62c7ef6023f7d9c1d049051384ba. For more details please see the references link.