On 28/07/2021, Kees Cook <keescook@xxxxxxxxxxxx> wrote: > In preparation for FORTIFY_SOURCE performing compile-time and run-time > field array bounds checking for memcpy(), memmove(), and memset(), > avoid intentionally writing across neighboring fields. > > Use struct_group() in struct libipw_qos_information_element around > members qui, qui_type, qui_subtype, version, and ac_info, so they can be > referenced together. This will allow memcpy() and sizeof() to more easily > reason about sizes, improve readability, and avoid future warnings about > writing beyond the end of qui. > > "pahole" shows no size nor member offset changes to struct > libipw_qos_information_element. > > Additionally corrects the size in libipw_read_qos_param_element() as > it was testing the wrong structure size (it should have been struct > libipw_qos_information_element, not struct libipw_qos_parameter_info). > > Signed-off-by: Kees Cook <keescook@xxxxxxxxxxxx> > --- > drivers/net/wireless/intel/ipw2x00/libipw.h | 12 +++++++----- > drivers/net/wireless/intel/ipw2x00/libipw_rx.c | 8 ++++---- > 2 files changed, 11 insertions(+), 9 deletions(-) > Acked-by: Stanislav Yakovlev <stas.yakovlev@xxxxxxxxx> Looks fine, thanks! Stanislav.
