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 /********** include/linux/timer.h **********/
  14 /*
  15  * Magic number "tsta" to indicate a static timer initializer
  16  * for the object debugging code.
  17  */
  18 #define TIMER_ENTRY_STATIC      ((void *) 0x74737461)
  19
  20 /********** mm/debug-pagealloc.c **********/
  21 #define PAGE_POISON 0xaa
  22
  23 /********** mm/slab.c **********/
  24 /*
  25  * Magic nums for obj red zoning.
  26  * Placed in the first word before and the first word after an obj.
  27  */
  28 #define RED_INACTIVE    0x09F911029D74E35BULL   /* when obj is inactive */
  29 #define RED_ACTIVE      0xD84156C5635688C0ULL   /* when obj is active */
  30
  31 #define SLUB_RED_INACTIVE       0xbb
  32 #define SLUB_RED_ACTIVE         0xcc
  33
  34 /* ...and for poisoning */
  35 #define POISON_INUSE    0x5a    /* for use-uninitialised poisoning */
  36 #define POISON_FREE     0x6b    /* for use-after-free poisoning */
  37 #define POISON_END      0xa5    /* end-byte of poisoning */
  38
  39 /********** arch/$ARCH/mm/init.c **********/
  40 #define POISON_FREE_INITMEM     0xcc
  41
  42 /********** arch/ia64/hp/common/sba_iommu.c **********/
  43 /*
  44  * arch/ia64/hp/common/sba_iommu.c uses a 16-byte poison string with a
  45  * value of "SBAIOMMU POISON\0" for spill-over poisoning.
  46  */
  47
  48 /********** fs/jbd/journal.c **********/
  49 #define JBD_POISON_FREE         0x5b
  50 #define JBD2_POISON_FREE        0x5c
  51
  52 /********** drivers/base/dmapool.c **********/
  53 #define POOL_POISON_FREED       0xa7    /* !inuse */
  54 #define POOL_POISON_ALLOCATED   0xa9    /* !initted */
  55
  56 /********** drivers/atm/ **********/
  57 #define ATM_POISON_FREE         0x12
  58 #define ATM_POISON              0xdeadbeef
  59
  60 /********** net/ **********/
  61 #define NEIGHBOR_DEAD           0xdeadbeef
  62 #define NETFILTER_LINK_POISON   0xdead57ac
  63
  64 /********** kernel/mutexes **********/
  65 #define MUTEX_DEBUG_INIT        0x11
  66 #define MUTEX_DEBUG_FREE        0x22
  67
  68 /********** lib/flex_array.c **********/
  69 #define FLEX_ARRAY_FREE 0x6c    /* for use-after-free poisoning */
  70
  71 /********** security/ **********/
  72 #define KEY_DESTROY             0xbd
  73
  74 /********** sound/oss/ **********/
  75 #define OSS_POISON_FREE         0xAB
  76
  77 #endif