CVE-2025-40106 comedi: fix divide-by-zero in comedi_buf_munge()

In the Linux kernel, the following vulnerability has been resolved: comedi: fix divide-by-zero in comedibufmunge The comedibufmunge function performs a modulo operation async-mungechan %= async-cmd.chanlistlen without first checking if chanlistlen is zero. If a user program submits a command with...