On Wed, Jun 16, 2021 at 01:19:42PM -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 across neighboring array fields. > > Add a wrapping struct to serve as the memcpy() source so the compiler > can perform appropriate bounds checking, avoiding this future warning: > > In function '__fortify_memcpy', > inlined from 'iucv_message_pending' at net/iucv/iucv.c:1663:4: > ./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> > --- > net/iucv/iucv.c | 22 ++++++++++++---------- > 1 file changed, 12 insertions(+), 10 deletions(-) This one is for Julian Wiedmann and Karsten Graul.
