diff options
| author | Andy Lutomirski <luto@kernel.org> | 2019-11-24 21:18:04 -0800 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2019-11-26 21:53:34 +0100 |
| commit | b09511c253e5c739a60952b97c071a93e92b2e88 (patch) | |
| tree | f4a7da82f012c8d8e1820b9e7098cafc55793ecd /drivers/misc/lkdtm/lkdtm.h | |
| parent | 3300c4f3afbb59a1f4bfdbe0f0b6c91e241541b1 (diff) | |
lkdtm: Add a DOUBLE_FAULT crash type on x86
The DOUBLE_FAULT crash does INT $8, which is a decent approximation
of a double fault. This is useful for testing the double fault
handling. Use it like:
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Cc: Kees Cook <keescook@chromium.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'drivers/misc/lkdtm/lkdtm.h')
| -rw-r--r-- | drivers/misc/lkdtm/lkdtm.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/misc/lkdtm/lkdtm.h b/drivers/misc/lkdtm/lkdtm.h index ab446e0bde97..c56d23e37643 100644 --- a/drivers/misc/lkdtm/lkdtm.h +++ b/drivers/misc/lkdtm/lkdtm.h @@ -28,6 +28,9 @@ void lkdtm_CORRUPT_USER_DS(void); void lkdtm_STACK_GUARD_PAGE_LEADING(void); void lkdtm_STACK_GUARD_PAGE_TRAILING(void); void lkdtm_UNSET_SMEP(void); +#ifdef CONFIG_X86_32 +void lkdtm_DOUBLE_FAULT(void); +#endif /* lkdtm_heap.c */ void __init lkdtm_heap_init(void); |