CVE-2024-53155 is a high-severity vulnerability in the Linux kernel's ocfs2 file system. It involves an uninitialized value in the ocfs2_file_read_iter() function, which can lead to memory safety issues. The flaw arises because an instance of 'struct kiocb' may be passed with its 'private' field uninitialized from the block layer. The issue has been addressed by introducing an initialization function ocfs2_iocb_init_rw_locked() used in relevant read and write iter functions.