diff options
| author | Kees Cook <keescook@chromium.org> | 2023-05-22 14:28:46 -0700 |
|---|---|---|
| committer | Kees Cook <keescook@chromium.org> | 2023-05-30 16:42:00 -0700 |
| commit | b45861ed66ded8b31c718ed096c993dfba2b07df (patch) | |
| tree | d57e8782d64ea392db17e1f29ef459ab4442079d | |
| parent | 7391928025f28cd4cab43e59d2b4e36509b9337e (diff) | |
lkdtm/bugs: Switch from 1-element array to flexible array
The testing for ARRAY_BOUNDS just wants an uninstrumented array,
and the proper flexible array definition is fine for that.
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Bill Wendling <morbo@google.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
| -rw-r--r-- | drivers/misc/lkdtm/bugs.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/misc/lkdtm/bugs.c b/drivers/misc/lkdtm/bugs.c index 48821f4c2b21..d359e38dd1a6 100644 --- a/drivers/misc/lkdtm/bugs.c +++ b/drivers/misc/lkdtm/bugs.c @@ -309,7 +309,7 @@ static void lkdtm_OVERFLOW_UNSIGNED(void) struct array_bounds_flex_array { int one; int two; - char data[1]; + char data[]; }; struct array_bounds { @@ -341,7 +341,7 @@ static void lkdtm_ARRAY_BOUNDS(void) * For the uninstrumented flex array member, also touch 1 byte * beyond to verify it is correctly uninstrumented. */ - for (i = 0; i < sizeof(not_checked->data) + 1; i++) + for (i = 0; i < 2; i++) not_checked->data[i] = 'A'; pr_info("Array access beyond bounds ...\n"); |