Question: What is CVE-2025-21667?
Answer: CVE-2025-21667 is a vulnerability classified as medium with a CVSS score of 5.5. It falls under CWE-835 and affects the system as follows: In the Linux kernel, the following vulnerability has been resolved:

iomap: avoid avoid truncating 64-bit offset to 32 bits

on 32-bit kernels, iomap_write_delalloc_scan() was inadvertently using a
32-bit position due to folio_next_index() returning an unsigned long.
This could lead to an infinite loop when writing to an xfs filesystem.