x86 kvm page table walks: switch to explicit __get_user()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
mariux64 · Feb 15, 2020 · a481444 · a481444
1 parent c8e3dd8
commit a481444
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/arch/x86/kvm/mmu/paging_tmpl.h b/arch/x86/kvm/mmu/paging_tmpl.h
@@ -400,7 +400,7 @@ static int FNAME(walk_addr_generic)(struct guest_walker *walker,
 			goto error;
 
 		ptep_user = (pt_element_t __user *)((void *)host_addr + offset);
-		if (unlikely(__copy_from_user(&pte, ptep_user, sizeof(pte))))
+		if (unlikely(__get_user(pte, ptep_user)))
 			goto error;
 		walker->ptep_user[walker->level - 1] = ptep_user;