In the Linux kernel, the following vulnerability has been resolved: mm/vmalloc: acquire init_mm lock on huge vmap to avoid ptdump UAF Patch series "mm: fix UAF caused by race between ptdump and vma…

Summary

In the Linux kernel, the following vulnerability has been resolved: mm/vmalloc: acquire init_mm lock on huge vmap to avoid ptdump UAF Patch series "mm: fix UAF caused by race between ptdump and vmap pgtable freeing", v6. Kernel page table walkers fall into two broad categories - those ranges where no exclusion is required via walk_kernel_page_table_range_lockless() and those where exclusion is required via walk_kernel_page_table_range() or walk_page_range_debug(). The former category is use…