62 	 * The slub allocator uses the first word to store the free  in lkdtm_WRITE_AFTER_FREE()
88 	 * The slub allocator will use the either the first word or  in lkdtm_READ_AFTER_FREE()
186 	u8 *first;  in lkdtm_SLAB_INIT_ON_ALLOC()  local
189 	first = kmalloc(512, GFP_KERNEL);  in lkdtm_SLAB_INIT_ON_ALLOC()
190 	if (!first) {  in lkdtm_SLAB_INIT_ON_ALLOC()
191 		pr_info("Unable to allocate 512 bytes the first time.\n");  in lkdtm_SLAB_INIT_ON_ALLOC()
195 	memset(first, 0xAB, 512);  in lkdtm_SLAB_INIT_ON_ALLOC()
196 	kfree(first);  in lkdtm_SLAB_INIT_ON_ALLOC()
203 	if (val != first) {  in lkdtm_SLAB_INIT_ON_ALLOC()
218 	u8 *first;  in lkdtm_BUDDY_INIT_ON_ALLOC()  local
221 	first = (u8 *)__get_free_page(GFP_KERNEL);  in lkdtm_BUDDY_INIT_ON_ALLOC()
222 	if (!first) {  in lkdtm_BUDDY_INIT_ON_ALLOC()
223 		pr_info("Unable to allocate first free page\n");  in lkdtm_BUDDY_INIT_ON_ALLOC()
227 	memset(first, 0xAB, PAGE_SIZE);  in lkdtm_BUDDY_INIT_ON_ALLOC()
228 	free_page((unsigned long)first);  in lkdtm_BUDDY_INIT_ON_ALLOC()
236 	if (val != first) {  in lkdtm_BUDDY_INIT_ON_ALLOC()