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lkdtm: Add tests for struct list corruption

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When building under CONFIG_DEBUG_LIST, list addition and removal will be
sanity-checked. This validates that the check is working as expected by
setting up classic corruption attacks against list manipulations, available
with the new lkdtm tests CORRUPT_LIST_ADD and CORRUPT_LIST_DEL.

Signed-off-by: Kees Cook <keescook@chromium.org>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Acked-by: Rik van Riel <riel@redhat.com>
This commit is contained in:
Kees Cook
2016-08-17 14:42:12 -07:00
committed by Paul E. McKenney
parent de54ebbe26
commit 6819d101dd
3 changed files with 72 additions and 0 deletions
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drivers/misc/lkdtm.h
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@@ -21,6 +21,8 @@ void lkdtm_SPINLOCKUP(void);
void lkdtm_HUNG_TASK(void);
void lkdtm_ATOMIC_UNDERFLOW(void);
void lkdtm_ATOMIC_OVERFLOW(void);
void lkdtm_CORRUPT_LIST_ADD(void);
void lkdtm_CORRUPT_LIST_DEL(void);
/* lkdtm_heap.c */
void lkdtm_OVERWRITE_ALLOCATION(void);