LXR linux/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
  78