Question: What is CVE-2025-21687?
Answer: CVE-2025-21687 is a vulnerability classified as nan with a CVSS score of nan. It falls under nan and affects the system as follows: In the Linux kernel, the following vulnerability has been resolved:

vfio/platform: check the bounds of read/write syscalls

count and offset are passed from user space and not checked, only
offset is capped to 40 bits, which can be used to read/write out of
bounds of the device.