1 #ifndef _LINUX_POISON_H
2 #define _LINUX_POISON_H
4 /********** include/linux/list.h **********/
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.
10 #define LIST_POISON1 ((void *) 0x00100100)
11 #define LIST_POISON2 ((void *) 0x00200200)
13 /********** include/linux/timer.h **********/
15 * Magic number "tsta" to indicate a static timer initializer
16 * for the object debugging code.
18 #define TIMER_ENTRY_STATIC ((void *) 0x74737461)
20 /********** mm/slab.c **********/
22 * Magic nums for obj red zoning.
23 * Placed in the first word before and the first word after an obj.
25 #define RED_INACTIVE 0x09F911029D74E35BULL /* when obj is inactive */
26 #define RED_ACTIVE 0xD84156C5635688C0ULL /* when obj is active */
28 #define SLUB_RED_INACTIVE 0xbb
29 #define SLUB_RED_ACTIVE 0xcc
31 /* ...and for poisoning */
32 #define POISON_INUSE 0x5a /* for use-uninitialised poisoning */
33 #define POISON_FREE 0x6b /* for use-after-free poisoning */
34 #define POISON_END 0xa5 /* end-byte of poisoning */
36 /********** arch/$ARCH/mm/init.c **********/
37 #define POISON_FREE_INITMEM 0xcc
39 /********** arch/ia64/hp/common/sba_iommu.c **********/
41 * arch/ia64/hp/common/sba_iommu.c uses a 16-byte poison string with a
42 * value of "SBAIOMMU POISON\0" for spill-over poisoning.
45 /********** fs/jbd/journal.c **********/
46 #define JBD_POISON_FREE 0x5b
47 #define JBD2_POISON_FREE 0x5c
49 /********** drivers/base/dmapool.c **********/
50 #define POOL_POISON_FREED 0xa7 /* !inuse */
51 #define POOL_POISON_ALLOCATED 0xa9 /* !initted */
53 /********** drivers/atm/ **********/
54 #define ATM_POISON_FREE 0x12
55 #define ATM_POISON 0xdeadbeef
57 /********** net/ **********/
58 #define NEIGHBOR_DEAD 0xdeadbeef
59 #define NETFILTER_LINK_POISON 0xdead57ac
61 /********** kernel/mutexes **********/
62 #define MUTEX_DEBUG_INIT 0x11
63 #define MUTEX_DEBUG_FREE 0x22
65 /********** security/ **********/
66 #define KEY_DESTROY 0xbd
68 /********** sound/oss/ **********/
69 #define OSS_POISON_FREE 0xAB