CVE-2023-52601: Improper Validation of Array Index

In the Linux kernel, the following vulnerability has been resolved:

jfs: fix array-index-out-of-bounds in dbAdjTree

Currently there is a bound check missing in the dbAdjTree while accessing the dmt_stree. To add the required check added the bool is_ctl which is required to determine the size as suggest in the following commit. https://lore.kernel.org/linux-kernel-mentees/[email protected]/