Commits
Jay Cornwall committed d14f6fced5f
iommu/amd: Fix BUG when faulting a PROT_NONE VMA handle_mm_fault indirectly triggers a BUG in do_numa_page when given a VMA without read/write/execute access. Check this condition in do_fault. do_fault -> handle_mm_fault -> handle_pte_fault -> do_numa_page mm/memory.c 3147 static int do_numa_page(struct mm_struct *mm, struct vm_area_struct *vma, .... 3159 /* A PROT_NONE fault should not end up here */ 3160 BUG_ON(!(vma->vm_flags & (VM_READ | VM_EXEC | VM_WRITE))); Signed-off-by: Jay Cornwall <jay@jcornwall.me> Cc: <stable@vger.kernel.org> # v4.1+ Signed-off-by: Joerg Roedel <jroedel@suse.de>