diff options
| author | Andy Lutomirski <luto@kernel.org> | 2019-11-25 08:18:04 +0300 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2019-11-26 23:53:34 +0300 |
| commit | b09511c253e5c739a60952b97c071a93e92b2e88 (patch) | |
| tree | f4a7da82f012c8d8e1820b9e7098cafc55793ecd /drivers/misc/lkdtm/core.c | |
| parent | 3300c4f3afbb59a1f4bfdbe0f0b6c91e241541b1 (diff) | |
| download | linux-b09511c253e5c739a60952b97c071a93e92b2e88.tar.xz | |
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/core.c')
| -rw-r--r-- | drivers/misc/lkdtm/core.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/misc/lkdtm/core.c b/drivers/misc/lkdtm/core.c index cbc4c9045a99..ee0d6e721441 100644 --- a/drivers/misc/lkdtm/core.c +++ b/drivers/misc/lkdtm/core.c @@ -171,6 +171,9 @@ static const struct crashtype crashtypes[] = { CRASHTYPE(USERCOPY_KERNEL_DS), CRASHTYPE(STACKLEAK_ERASING), CRASHTYPE(CFI_FORWARD_PROTO), +#ifdef CONFIG_X86_32 + CRASHTYPE(DOUBLE_FAULT), +#endif }; |