CVE-2022-49334 mm/huge_memory: Fix xarray node memory leak

In the Linux kernel, the following vulnerability has been resolved: mm/hugememory: Fix xarray node memory leak If xassplitalloc fails to allocate the necessary nodes to complete the xarray entry split, it sets the xastate to -ENOMEM, which xasnomem then interprets as "Please allocate more memory"...