CVE-2024-36000

In the Linux kernel, the following vulnerability has been resolved: mm/hugetlb: fix missing hugetlblock for resv uncharge There is a recent report on UFFDIOCOPY over hugetlb: https://lore.kernel.org/all/[email protected]/ 350: lockdepassertheld&hugetlblock; Should be an issu...

CVE-2024-36000

The vulnerability CVE-2024-36000 is a Linux kernel issue where mm/hugetlb could miss acquiring hugetlb_lock during resv uncharge, particularly in a userfault context via UFFDIO_COPY. The root cause is locking criteria being overlooked in hugetlb_cgroup_uncharge_folio_rsvd(), which updates the cgr...