CVE-2026-31735 iommupt: Fix short gather if the unmap goes into a large mapping

In the Linux kernel, the following vulnerability has been resolved: iommupt: Fix short gather if the unmap goes into a large mapping unmap has the odd behavior that it can unmap more than requested if the ending point lands within the middle of a large or contiguous IOPTE. In this case the gather...

PT-2026-36370

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the iommupt component where the unmap process may unmap more than requested if the ending point falls within a large or contiguous Input/Output Page Table Entry IOPTE...