From f503ae90c7355e8506e68498fe84c1357894cd5b Mon Sep 17 00:00:00 2001 From: Ma Ke Date: Tue, 13 Aug 2024 16:12:42 +0800 Subject: wifi: mt76: mt7996: fix NULL pointer dereference in mt7996_mcu_sta_bfer_he Fix the NULL pointer dereference in mt7996_mcu_sta_bfer_he routine adding an sta interface to the mt7996 driver. Found by code review. Cc: stable@vger.kernel.org Fixes: 98686cd21624 ("wifi: mt76: mt7996: add driver for MediaTek Wi-Fi 7 (802.11be) devices") Signed-off-by: Ma Ke Link: https://patch.msgid.link/20240813081242.3991814-1-make24@iscas.ac.cn Signed-off-by: Felix Fietkau --- drivers/net/wireless/mediatek/mt76/mt7996/mcu.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'drivers') diff --git a/drivers/net/wireless/mediatek/mt76/mt7996/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7996/mcu.c index e8d34bfbb41a..8855095fef10 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7996/mcu.c +++ b/drivers/net/wireless/mediatek/mt76/mt7996/mcu.c @@ -1544,6 +1544,9 @@ mt7996_mcu_sta_bfer_he(struct ieee80211_sta *sta, struct ieee80211_vif *vif, u8 nss_mcs = mt7996_mcu_get_sta_nss(mcs_map); u8 snd_dim, sts; + if (!vc) + return; + bf->tx_mode = MT_PHY_TYPE_HE_SU; mt7996_mcu_sta_sounding_rate(bf); -- cgit v1.2.3