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Randy Dunlapc9cf5522006-06-27 02:53:52 -07001#ifndef _LINUX_POISON_H
2#define _LINUX_POISON_H
3
4/********** include/linux/list.h **********/
5/*
6 * These are non-NULL pointers that will result in page faults
7 * under normal circumstances, used to verify that nobody uses
8 * non-initialized list entries.
9 */
10#define LIST_POISON1 ((void *) 0x00100100)
11#define LIST_POISON2 ((void *) 0x00200200)
12
13/********** mm/slab.c **********/
14/*
15 * Magic nums for obj red zoning.
16 * Placed in the first word before and the first word after an obj.
17 */
David Woodhouseb46b8f12007-05-08 00:22:59 -070018#define RED_INACTIVE 0x09F911029D74E35BULL /* when obj is inactive */
19#define RED_ACTIVE 0xD84156C5635688C0ULL /* when obj is active */
Randy Dunlapc9cf5522006-06-27 02:53:52 -070020
Christoph Lameter81819f02007-05-06 14:49:36 -070021#define SLUB_RED_INACTIVE 0xbb
22#define SLUB_RED_ACTIVE 0xcc
23
Randy Dunlapc9cf5522006-06-27 02:53:52 -070024/* ...and for poisoning */
25#define POISON_INUSE 0x5a /* for use-uninitialised poisoning */
26#define POISON_FREE 0x6b /* for use-after-free poisoning */
27#define POISON_END 0xa5 /* end-byte of poisoning */
28
29/********** arch/$ARCH/mm/init.c **********/
30#define POISON_FREE_INITMEM 0xcc
31
Randy Dunlapc9cf5522006-06-27 02:53:52 -070032/********** arch/ia64/hp/common/sba_iommu.c **********/
33/*
34 * arch/ia64/hp/common/sba_iommu.c uses a 16-byte poison string with a
35 * value of "SBAIOMMU POISON\0" for spill-over poisoning.
36 */
37
38/********** fs/jbd/journal.c **********/
39#define JBD_POISON_FREE 0x5b
40
41/********** drivers/base/dmapool.c **********/
42#define POOL_POISON_FREED 0xa7 /* !inuse */
43#define POOL_POISON_ALLOCATED 0xa9 /* !initted */
44
Randy Dunlapb3c681e2006-06-27 02:53:53 -070045/********** drivers/atm/ **********/
46#define ATM_POISON_FREE 0x12
Randy Dunlap3c6b3772006-07-03 19:48:25 -070047#define ATM_POISON 0xdeadbeef
Randy Dunlapb3c681e2006-06-27 02:53:53 -070048
Randy Dunlap4bdbf6c2006-07-03 19:47:27 -070049/********** net/ **********/
50#define NEIGHBOR_DEAD 0xdeadbeef
51#define NETFILTER_LINK_POISON 0xdead57ac
52
Randy Dunlapa7807a32006-06-27 02:53:54 -070053/********** kernel/mutexes **********/
54#define MUTEX_DEBUG_INIT 0x11
55#define MUTEX_DEBUG_FREE 0x22
56
57/********** security/ **********/
58#define KEY_DESTROY 0xbd
59
Randy Dunlapb3c681e2006-06-27 02:53:53 -070060/********** sound/oss/ **********/
61#define OSS_POISON_FREE 0xAB
62
Randy Dunlapc9cf5522006-06-27 02:53:52 -070063#endif