6.1-stable review patch. If anyone has any objections, please let me know. ------------------ From: Felix Fietkau <nbd@xxxxxxxx> [ Upstream commit 7f819a2f4fbc510e088b49c79addcf1734503578 ] Avoid potentially reusing uninitialized data Signed-off-by: Felix Fietkau <nbd@xxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> --- drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c | 10 +++++----- drivers/net/wireless/mediatek/mt76/mt7915/mcu.c | 2 +- 2 files changed, 6 insertions(+), 6 deletions(-) diff --git a/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c b/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c index 546cbe21aab31..6b5bfdbec8b11 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c +++ b/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c @@ -254,7 +254,7 @@ mt76_connac_mcu_add_nested_tlv(struct sk_buff *skb, int tag, int len, }; u16 ntlv; - ptlv = skb_put(skb, len); + ptlv = skb_put_zero(skb, len); memcpy(ptlv, &tlv, sizeof(tlv)); ntlv = le16_to_cpu(ntlv_hdr->tlv_num); @@ -1532,7 +1532,7 @@ int mt76_connac_mcu_hw_scan(struct mt76_phy *phy, struct ieee80211_vif *vif, set_bit(MT76_HW_SCANNING, &phy->state); mvif->scan_seq_num = (mvif->scan_seq_num + 1) & 0x7f; - req = (struct mt76_connac_hw_scan_req *)skb_put(skb, sizeof(*req)); + req = (struct mt76_connac_hw_scan_req *)skb_put_zero(skb, sizeof(*req)); req->seq_num = mvif->scan_seq_num | mvif->band_idx << 7; req->bss_idx = mvif->idx; @@ -1660,7 +1660,7 @@ int mt76_connac_mcu_sched_scan_req(struct mt76_phy *phy, mvif->scan_seq_num = (mvif->scan_seq_num + 1) & 0x7f; - req = (struct mt76_connac_sched_scan_req *)skb_put(skb, sizeof(*req)); + req = (struct mt76_connac_sched_scan_req *)skb_put_zero(skb, sizeof(*req)); req->version = 1; req->seq_num = mvif->scan_seq_num | mvif->band_idx << 7; @@ -2294,7 +2294,7 @@ int mt76_connac_mcu_update_gtk_rekey(struct ieee80211_hw *hw, return -ENOMEM; skb_put_data(skb, &hdr, sizeof(hdr)); - gtk_tlv = (struct mt76_connac_gtk_rekey_tlv *)skb_put(skb, + gtk_tlv = (struct mt76_connac_gtk_rekey_tlv *)skb_put_zero(skb, sizeof(*gtk_tlv)); gtk_tlv->tag = cpu_to_le16(UNI_OFFLOAD_OFFLOAD_GTK_REKEY); gtk_tlv->len = cpu_to_le16(sizeof(*gtk_tlv)); @@ -2417,7 +2417,7 @@ mt76_connac_mcu_set_wow_pattern(struct mt76_dev *dev, return -ENOMEM; skb_put_data(skb, &hdr, sizeof(hdr)); - ptlv = (struct mt76_connac_wow_pattern_tlv *)skb_put(skb, sizeof(*ptlv)); + ptlv = (struct mt76_connac_wow_pattern_tlv *)skb_put_zero(skb, sizeof(*ptlv)); ptlv->tag = cpu_to_le16(UNI_SUSPEND_WOW_PATTERN); ptlv->len = cpu_to_le16(sizeof(*ptlv)); ptlv->data_len = pattern->pattern_len; diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c index b2ea539f697f7..65f07cc2acdd4 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c +++ b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c @@ -395,7 +395,7 @@ mt7915_mcu_add_nested_subtlv(struct sk_buff *skb, int sub_tag, int sub_len, .len = cpu_to_le16(sub_len), }; - ptlv = skb_put(skb, sub_len); + ptlv = skb_put_zero(skb, sub_len); memcpy(ptlv, &tlv, sizeof(tlv)); le16_add_cpu(sub_ntlv, 1); -- 2.43.0
