Kees Cook <keescook@xxxxxxxxxxxx> wrote: > The memcpy() in ath_key_config() was attempting to write across > neighboring struct members in struct ath_keyval. Introduce a wrapping > struct_group, kv_values, to be the addressable target of the memcpy > without overflowing an individual member. Silences the false positive > run-time warning: > > memcpy: detected field-spanning write (size 32) of single field "hk.kv_val" at drivers/net/wireless/ath/key.c:506 (size 16) > > Link: https://bbs.archlinux.org/viewtopic.php?id=282254 > Cc: Kalle Valo <kvalo@xxxxxxxxxx> > Cc: "David S. Miller" <davem@xxxxxxxxxxxxx> > Cc: Eric Dumazet <edumazet@xxxxxxxxxx> > Cc: Jakub Kicinski <kuba@xxxxxxxxxx> > Cc: Paolo Abeni <pabeni@xxxxxxxxxx> > Cc: linux-wireless@xxxxxxxxxxxxxxx > Cc: netdev@xxxxxxxxxxxxxxx > Signed-off-by: Kees Cook <keescook@xxxxxxxxxxxx> > Signed-off-by: Kalle Valo <quic_kvalo@xxxxxxxxxxx> Patch applied to ath-next branch of ath.git, thanks. bfcc8ba45eb8 wifi: ath: Silence memcpy run-time false positive warning -- https://patchwork.kernel.org/project/linux-wireless/patch/20230210054310.never.554-kees@xxxxxxxxxx/ https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
