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.

References

• https://nvd.nist.gov/vuln/detail/CVE-2025-21667
• https://git.kernel.org/stable/c/402ce16421477e27f30b57d6d1a6dc248fa3a4e4
• https://git.kernel.org/stable/c/7ca4bd6b754913910151acce00be093f03642725
• https://git.kernel.org/stable/c/91371922704c8d82049ef7c2ad974d0a2cd1174d
• https://git.kernel.org/stable/c/c13094b894de289514d84b8db56d1f2931a0bade