Re: [PATCH 09/64] staging: rtl8723bs: Avoid field-overflowing memcpy()

On Tue, Jul 27, 2021 at 01:58:00PM -0700, Kees Cook wrote:

In preparation for FORTIFY_SOURCE performing compile-time and run-time field bounds checking for memcpy(), memmove(), and memset(), avoid intentionally writing across neighboring fields.

Adjust memcpy() destination to be the named structure itself, rather than the first member, allowing memcpy() to correctly reason about the size.

"objdump -d" shows no object code changes.

Signed-off-by: Kees Cook keescook@chromium.org

drivers/staging/rtl8723bs/core/rtw_mlme.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

Acked-by: Greg Kroah-Hartman gregkh@linuxfoundation.org