CVE-2024-26956 nilfs2: fix failure to detect DAT corruption in btree and direct mappings

In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix failure to detect DAT corruption in btree and direct mappings Patch series "nilfs2: fix kernel bug at submitbhwbc". This resolves a kernel BUG reported by syzbot. Since there are two flaws involved, I've made each one...