include/linux/poison.h

   1 #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  */
  18 #define RED_INACTIVE    0x5A2CF071UL    /* when obj is inactive */
  19 #define RED_ACTIVE      0x170FC2A5UL    /* when obj is active */
  20
  21 /* ...and for poisoning */
  22 #define POISON_INUSE    0x5a    /* for use-uninitialised poisoning */
  23 #define POISON_FREE     0x6b    /* for use-after-free poisoning */
  24 #define POISON_END      0xa5    /* end-byte of poisoning */
  25
  26 /********** arch/$ARCH/mm/init.c **********/
  27 #define POISON_FREE_INITMEM     0xcc
  28
  29 /********** arch/x86_64/mm/init.c **********/
  30 #define POISON_FREE_INITDATA    0xba
  31
  32 /********** 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
  45 /********** drivers/atm/ **********/
  46 #define ATM_POISON_FREE         0x12
  47 #define ATM_POISON              0xdeadbeef
  48
  49 /********** net/ **********/
  50 #define NEIGHBOR_DEAD           0xdeadbeef
  51 #define NETFILTER_LINK_POISON   0xdead57ac
  52
  53 /********** kernel/mutexes **********/
  54 #define MUTEX_DEBUG_INIT        0x11
  55 #define MUTEX_DEBUG_FREE        0x22
  56
  57 /********** security/ **********/
  58 #define KEY_DESTROY             0xbd
  59
  60 /********** sound/oss/ **********/
  61 #define OSS_POISON_FREE         0xAB
  62
  63 #endif