CVE-2024-42297 is a vulnerability in the Linux kernel's f2fs filesystem driver where the kernel may panic due to dirtying an inode on a read-only filesystem. This occurs during inode eviction when the filesystem is mounted read-only, triggering a kernel BUG and causing a denial of service. The issue arises because the code attempts to mark an inode dirty on a read-only filesystem, which is not allowed and leads to a panic.