CVE-2024-42136 cdrom: rearrange last_media_change check to avoid unintentional overflow

In the Linux kernel, the following vulnerability has been resolved: cdrom: rearrange lastmediachange check to avoid unintentional overflow When running syzkaller with the newly reintroduced signed integer wrap sanitizer we encounter this splat: 366.015950 UBSAN: signed-integer-overflow in...