diff options
| author | Kees Cook <keescook@chromium.org> | 2021-06-17 07:14:31 +0300 |
|---|---|---|
| committer | Kalle Valo <kvalo@codeaurora.org> | 2021-06-22 18:23:54 +0300 |
| commit | 3f26f7665c5ddc880444e3daaecb3a46794ba3a4 (patch) | |
| tree | 9b49ab2031b61e40958923fe551d3a98ea4bf508 /drivers/net/wireless | |
| parent | 70ca8441ebfc4412dc9d3c56409e73dba959ab34 (diff) | |
| download | linux-3f26f7665c5ddc880444e3daaecb3a46794ba3a4.tar.xz | |
mwl8k: Avoid memcpy() over-reading of mcs.rx_mask
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. Use the
sub-structure address directly.
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210617041431.2168953-1-keescook@chromium.org
Diffstat (limited to 'drivers/net/wireless')
| -rw-r--r-- | drivers/net/wireless/marvell/mwl8k.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/net/wireless/marvell/mwl8k.c b/drivers/net/wireless/marvell/mwl8k.c index 84b32a5f01ee..3bf6571f4149 100644 --- a/drivers/net/wireless/marvell/mwl8k.c +++ b/drivers/net/wireless/marvell/mwl8k.c @@ -4552,7 +4552,7 @@ static int mwl8k_cmd_update_stadb_add(struct ieee80211_hw *hw, else rates = sta->supp_rates[NL80211_BAND_5GHZ] << 5; legacy_rate_mask_to_array(p->legacy_rates, rates); - memcpy(p->ht_rates, sta->ht_cap.mcs.rx_mask, 16); + memcpy(p->ht_rates, &sta->ht_cap.mcs, 16); p->interop = 1; p->amsdu_enabled = 0; @@ -5034,7 +5034,7 @@ mwl8k_bss_info_changed_sta(struct ieee80211_hw *hw, struct ieee80211_vif *vif, ap_legacy_rates = ap->supp_rates[NL80211_BAND_5GHZ] << 5; } - memcpy(ap_mcs_rates, ap->ht_cap.mcs.rx_mask, 16); + memcpy(ap_mcs_rates, &ap->ht_cap.mcs, 16); rcu_read_unlock(); |