On Wed, Jun 16, 2021 at 01:19:02PM -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 reading/writing across neighboring array fields. > > Switch from zero-element arrays to flexible arrays so the compiler will > perform appropriate bounds checking, avoiding these future warnings: > > In function '__fortify_memcpy', > inlined from 'cca_sec2protkey' at drivers/s390/crypto/zcrypt_ccamisc.c:645:2: > ./include/linux/fortify-string.h:244:4: error: call to '__write_overflow_field' declared with attribute error: detected write beyond size of field (1st parameter) > > In function '__fortify_memcpy', > inlined from 'cca_clr2seckey' at drivers/s390/crypto/zcrypt_ccamisc.c:568:3: > ./include/linux/fortify-string.h:246:4: error: call to '__read_overflow2_field' declared with attribute error: detected read beyond size of field (2nd parameter) > > In function '__fortify_memcpy', > inlined from 'cca_genseckey' at drivers/s390/crypto/zcrypt_ccamisc.c:429:2: > ./include/linux/fortify-string.h:246:4: error: call to '__read_overflow2_field' declared with attribute error: detected read beyond size of field (2nd parameter) > > Signed-off-by: Kees Cook <keescook@xxxxxxxxxxxx> > --- > drivers/s390/crypto/zcrypt_ccamisc.c | 6 +++--- > 1 file changed, 3 insertions(+), 3 deletions(-) Applied, thanks!
