diff options
| author | Kees Cook <keescook@chromium.org> | 2019-04-06 08:59:19 -0700 |
|---|---|---|
| committer | Kees Cook <keescook@chromium.org> | 2019-04-07 10:38:31 -0700 |
| commit | 24cccab42c4199c6daa0a6981e6f6a1ffb0b5a09 (patch) | |
| tree | d99b4d6dc3bf6bf86d252b5649508f68fa81de07 /drivers/misc/lkdtm/core.c | |
| parent | 2bf8496f6e9b7e9a557f65eb95eab16fea7958c7 (diff) | |
lkdtm/bugs: Adjust recursion test to avoid elision
While I was able to trick gcc into keeping a pathological recursion,
Clang was not so easily fooled. Instead, switch to using "volatile" and
side-effects to keep the stack variable allocated and to run the function.
Additionally renames "OVERFLOW" to "EXHAUST_STACK" to better describe the
test.
Signed-off-by: Kees Cook <keescook@chromium.org>
Diffstat (limited to 'drivers/misc/lkdtm/core.c')
| -rw-r--r-- | drivers/misc/lkdtm/core.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/misc/lkdtm/core.c b/drivers/misc/lkdtm/core.c index b51cf182b031..4f3a6e1cd331 100644 --- a/drivers/misc/lkdtm/core.c +++ b/drivers/misc/lkdtm/core.c @@ -119,12 +119,12 @@ static const struct crashtype crashtypes[] = { CRASHTYPE(WARNING), CRASHTYPE(EXCEPTION), CRASHTYPE(LOOP), - CRASHTYPE(OVERFLOW), + CRASHTYPE(EXHAUST_STACK), + CRASHTYPE(CORRUPT_STACK), + CRASHTYPE(CORRUPT_STACK_STRONG), CRASHTYPE(CORRUPT_LIST_ADD), CRASHTYPE(CORRUPT_LIST_DEL), CRASHTYPE(CORRUPT_USER_DS), - CRASHTYPE(CORRUPT_STACK), - CRASHTYPE(CORRUPT_STACK_STRONG), CRASHTYPE(STACK_GUARD_PAGE_LEADING), CRASHTYPE(STACK_GUARD_PAGE_TRAILING), CRASHTYPE(UNALIGNED_LOAD_STORE_WRITE), |