CVE-2024-50143 is a high-severity vulnerability in the Linux kernel's UDF filesystem driver. It involves the use of uninitialized values in the function udf_get_fileshortad, which could lead to critical impacts on confidentiality, integrity, and availability. The issue is addressed by adding an overflow check when computing a length value in udf_current_aext, preventing the uninitialized value usage. The patch has been verified to prevent the issue from reproducing.