On the Linux kernel 3.6 and later before version 5.15.5, it is possible for an attacker to leak or change data that resides on hugetlbfs. Such data can reside on hugetlbfs, for instance if the victim runs mmap() using the MAP_HUGETLB or shmget() with SHM_HUGETLB. If a victim maps executable code onto hugetlbfs, the executable can be modified as well.
On the Linux kernel 3.6 and later before version 5.15.5, it is possible for an attacker to leak or change data that resides on hugetlbfs. Such data can reside on hugetlbfs, for instance if the victim runs mmap() using the MAP_HUGETLB or shmget() with SHM_HUGETLB. If a victim maps executable code onto hugetlbfs, the executable can be modified as well.
https://www.openwall.com/lists/oss-security/2021/11/25/1 https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v5.15.5&id=556d59293a2a94863797a7a50890992aa5e8db16
Vulmon