69 	 * The slub allocator uses the first word to store the free  in lkdtm_WRITE_AFTER_FREE()
95 	 * The slub allocator will use the either the first word or  in lkdtm_READ_AFTER_FREE()
193 	u8 *first;  in lkdtm_SLAB_INIT_ON_ALLOC()  local
196 	first = kmalloc(512, GFP_KERNEL);  in lkdtm_SLAB_INIT_ON_ALLOC()
197 	if (!first) {  in lkdtm_SLAB_INIT_ON_ALLOC()
198 		pr_info("Unable to allocate 512 bytes the first time.\n");  in lkdtm_SLAB_INIT_ON_ALLOC()
202 	memset(first, 0xAB, 512);  in lkdtm_SLAB_INIT_ON_ALLOC()
203 	kfree(first);  in lkdtm_SLAB_INIT_ON_ALLOC()
210 	if (val != first) {  in lkdtm_SLAB_INIT_ON_ALLOC()
225 	u8 *first;  in lkdtm_BUDDY_INIT_ON_ALLOC()  local
228 	first = (u8 *)__get_free_page(GFP_KERNEL);  in lkdtm_BUDDY_INIT_ON_ALLOC()
229 	if (!first) {  in lkdtm_BUDDY_INIT_ON_ALLOC()
230 		pr_info("Unable to allocate first free page\n");  in lkdtm_BUDDY_INIT_ON_ALLOC()
234 	memset(first, 0xAB, PAGE_SIZE);  in lkdtm_BUDDY_INIT_ON_ALLOC()
235 	free_page((unsigned long)first);  in lkdtm_BUDDY_INIT_ON_ALLOC()
243 	if (val != first) {  in lkdtm_BUDDY_INIT_ON_ALLOC()