CVE-2026-31735: In the Linux kernel, the following vulnerability has been resolved: iommupt: Fix short gather if the unmap goes into a

A vulnerability exists in the Linux kernel's iommupt (IOMMU page table) code where the unmap operation can unmap more memory than requested, but the cache invalidation (gather) only clears the originally requested range instead of the entire unmapped area. This mismatch could leave stale memory translations cached, potentially causing security or stability issues, though the developers believe it may not be triggerable in practice.