CVE-2025-68315: kernel: Linux kernel (f2fs): Denial of service or data corruption via f2fs metadata flaw

Severity: Critical

CVSS Score: 9.8

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to detect potential corrupted nid in free_nid_list As reported, on-disk footer.ino and footer.nid is the same and out-of-range, let's add sanity check on f2fs_alloc_nid() to detect any potential corruption in free_nid_list.