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    0x09F911029D74E35BULL   /* when obj is inactive */
  19 #define RED_ACTIVE      0xD84156C5635688C0ULL   /* when obj is active */
  20
  21 #define SLUB_RED_INACTIVE       0xbb
  22 #define SLUB_RED_ACTIVE         0xcc
  23
  24 /* ...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
  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 #define JBD2_POISON_FREE        0x5c
  41
  42 /********** drivers/base/dmapool.c **********/
  43 #define POOL_POISON_FREED       0xa7    /* !inuse */
  44 #define POOL_POISON_ALLOCATED   0xa9    /* !initted */
  45
  46 /********** drivers/atm/ **********/
  47 #define ATM_POISON_FREE         0x12
  48 #define ATM_POISON              0xdeadbeef
  49
  50 /********** net/ **********/
  51 #define NEIGHBOR_DEAD           0xdeadbeef
  52 #define NETFILTER_LINK_POISON   0xdead57ac
  53
  54 /********** kernel/mutexes **********/
  55 #define MUTEX_DEBUG_INIT        0x11
  56 #define MUTEX_DEBUG_FREE        0x22
  57
  58 /********** security/ **********/
  59 #define KEY_DESTROY             0xbd
  60
  61 /********** sound/oss/ **********/
  62 #define OSS_POISON_FREE         0xAB
  63
  64 #endif