CVE-2024-53052 is a medium severity vulnerability in the Linux kernel's io_uring subsystem. It involves a missing NOWAIT check when starting an O_DIRECT write, which can cause a deadlock between io_uring writes and filesystem freeze operations. This deadlock occurs because io_uring unconditionally blocks when acquiring a super block rwsem, preventing writes from completing and causing the freeze operation to hang. The issue requires CAP_SYS_ADMIN privileges to trigger, so regular users cannot exploit it.