UBUNTU-CVE-2026-98729: Medium severity ubuntu/linux-hwe-edge vulnerability

In the Linux kernel, the following vulnerability has been resolved: x86/mm: Don't apply vaalign to hugetlb mappings on AMD F15h getalignmask() returns hugepagemaskalign() for hugetlbfs, but getalignbits() adds vaalign.bits regardless, so vmunmappedarea() returns an address off the huge page boundary and unmaphugepagerange() hits BUGON(start & ~hugepagemask(h)) at teardown. This can be triggered on Carrizo and FX-8370E, both hstates. Pass the file to getalignbits() and skip the randomisation for hugetlbfs. [ bp: Massage commit message. ]