From: Felix Fietkau <nbd@nbd.name>
Date: Thu, 30 Mar 2023 11:12:59 +0200
Subject: [PATCH] wifi: mt76: ignore key disable commands
References: bsc#1012628
Patch-mainline: 6.2.11
Git-commit: e6db67fa871dee37d22701daba806bfcd4d9df49
commit e6db67fa871dee37d22701daba806bfcd4d9df49 upstream.
This helps avoid cleartext leakage of already queued or powersave buffered
packets, when a reassoc triggers the key deletion.
Cc: stable@vger.kernel.org
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230330091259.61378-1-nbd@nbd.name
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
---
.../net/wireless/mediatek/mt76/mt7603/main.c | 10 +--
.../net/wireless/mediatek/mt76/mt7615/mac.c | 70 ++++++-------------
.../net/wireless/mediatek/mt76/mt7615/main.c | 15 ++--
.../wireless/mediatek/mt76/mt7615/mt7615.h | 6 +-
.../net/wireless/mediatek/mt76/mt76x02_util.c | 18 ++---
.../net/wireless/mediatek/mt76/mt7915/main.c | 13 ++--
.../net/wireless/mediatek/mt76/mt7921/main.c | 13 ++--
.../net/wireless/mediatek/mt76/mt7996/main.c | 13 ++--
8 files changed, 62 insertions(+), 96 deletions(-)
diff --git a/drivers/net/wireless/mediatek/mt76/mt7603/main.c b/drivers/net/wireless/mediatek/mt76/mt7603/main.c
index ca50feb0..1b1358c6 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7603/main.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7603/main.c
@@ -512,15 +512,15 @@ mt7603_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
!(key->flags & IEEE80211_KEY_FLAG_PAIRWISE))
return -EOPNOTSUPP;
- if (cmd == SET_KEY) {
- key->hw_key_idx = wcid->idx;
- wcid->hw_key_idx = idx;
- } else {
+ if (cmd != SET_KEY) {
if (idx == wcid->hw_key_idx)
wcid->hw_key_idx = -1;
- key = NULL;
+ return 0;
}
+
+ key->hw_key_idx = wcid->idx;
+ wcid->hw_key_idx = idx;
mt76_wcid_key_setup(&dev->mt76, wcid, key);
return mt7603_wtbl_set_key(dev, wcid->idx, key);
diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/mac.c b/drivers/net/wireless/mediatek/mt76/mt7615/mac.c
index a9560247..51a968a6 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/mac.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/mac.c
@@ -1193,8 +1193,7 @@ EXPORT_SYMBOL_GPL(mt7615_mac_enable_rtscts);
static int
mt7615_mac_wtbl_update_key(struct mt7615_dev *dev, struct mt76_wcid *wcid,
struct ieee80211_key_conf *key,
- enum mt76_cipher_type cipher, u16 cipher_mask,
- enum set_key_cmd cmd)
+ enum mt76_cipher_type cipher, u16 cipher_mask)
{
u32 addr = mt7615_mac_wtbl_addr(dev, wcid->idx) + 30 * 4;
u8 data[32] = {};
@@ -1203,27 +1202,18 @@ mt7615_mac_wtbl_update_key(struct mt7615_dev *dev, struct mt76_wcid *wcid,
return -EINVAL;
mt76_rr_copy(dev, addr, data, sizeof(data));
- if (cmd == SET_KEY) {
- if (cipher == MT_CIPHER_TKIP) {
- /* Rx/Tx MIC keys are swapped */
- memcpy(data, key->key, 16);
- memcpy(data + 16, key->key + 24, 8);
- memcpy(data + 24, key->key + 16, 8);
- } else {
- if (cipher_mask == BIT(cipher))
- memcpy(data, key->key, key->keylen);
- else if (cipher != MT_CIPHER_BIP_CMAC_128)
- memcpy(data, key->key, 16);
- if (cipher == MT_CIPHER_BIP_CMAC_128)
- memcpy(data + 16, key->key, 16);
- }
+ if (cipher == MT_CIPHER_TKIP) {
+ /* Rx/Tx MIC keys are swapped */
+ memcpy(data, key->key, 16);
+ memcpy(data + 16, key->key + 24, 8);
+ memcpy(data + 24, key->key + 16, 8);
} else {
+ if (cipher_mask == BIT(cipher))
+ memcpy(data, key->key, key->keylen);
+ else if (cipher != MT_CIPHER_BIP_CMAC_128)
+ memcpy(data, key->key, 16);
if (cipher == MT_CIPHER_BIP_CMAC_128)
- memset(data + 16, 0, 16);
- else if (cipher_mask)
- memset(data, 0, 16);
- if (!cipher_mask)
- memset(data, 0, sizeof(data));
+ memcpy(data + 16, key->key, 16);
}
mt76_wr_copy(dev, addr, data, sizeof(data));
@@ -1234,7 +1224,7 @@ mt7615_mac_wtbl_update_key(struct mt7615_dev *dev, struct mt76_wcid *wcid,
static int
mt7615_mac_wtbl_update_pk(struct mt7615_dev *dev, struct mt76_wcid *wcid,
enum mt76_cipher_type cipher, u16 cipher_mask,
- int keyidx, enum set_key_cmd cmd)
+ int keyidx)
{
u32 addr = mt7615_mac_wtbl_addr(dev, wcid->idx), w0, w1;
@@ -1253,9 +1243,7 @@ mt7615_mac_wtbl_update_pk(struct mt7615_dev *dev, struct mt76_wcid *wcid,
else
w0 &= ~MT_WTBL_W0_RX_IK_VALID;
- if (cmd == SET_KEY &&
- (cipher != MT_CIPHER_BIP_CMAC_128 ||
- cipher_mask == BIT(cipher))) {
+ if (cipher != MT_CIPHER_BIP_CMAC_128 || cipher_mask == BIT(cipher)) {
w0 &= ~MT_WTBL_W0_KEY_IDX;
w0 |= FIELD_PREP(MT_WTBL_W0_KEY_IDX, keyidx);
}
@@ -1272,19 +1260,10 @@ mt7615_mac_wtbl_update_pk(struct mt7615_dev *dev, struct mt76_wcid *wcid,
static void
mt7615_mac_wtbl_update_cipher(struct mt7615_dev *dev, struct mt76_wcid *wcid,
- enum mt76_cipher_type cipher, u16 cipher_mask,
- enum set_key_cmd cmd)
+ enum mt76_cipher_type cipher, u16 cipher_mask)
{
u32 addr = mt7615_mac_wtbl_addr(dev, wcid->idx);
- if (!cipher_mask) {
- mt76_clear(dev, addr + 2 * 4, MT_WTBL_W2_KEY_TYPE);
- return;
- }
-
- if (cmd != SET_KEY)
- return;
-
if (cipher == MT_CIPHER_BIP_CMAC_128 &&
cipher_mask & ~BIT(MT_CIPHER_BIP_CMAC_128))
return;
@@ -1295,8 +1274,7 @@ mt7615_mac_wtbl_update_cipher(struct mt7615_dev *dev, struct mt76_wcid *wcid,
int __mt7615_mac_wtbl_set_key(struct mt7615_dev *dev,
struct mt76_wcid *wcid,
- struct ieee80211_key_conf *key,
- enum set_key_cmd cmd)
+ struct ieee80211_key_conf *key)
{
enum mt76_cipher_type cipher;
u16 cipher_mask = wcid->cipher;
@@ -1306,19 +1284,14 @@ int __mt7615_mac_wtbl_set_key(struct mt7615_dev *dev,
if (cipher == MT_CIPHER_NONE)
return -EOPNOTSUPP;
- if (cmd == SET_KEY)
- cipher_mask |= BIT(cipher);
- else
- cipher_mask &= ~BIT(cipher);
-
- mt7615_mac_wtbl_update_cipher(dev, wcid, cipher, cipher_mask, cmd);
- err = mt7615_mac_wtbl_update_key(dev, wcid, key, cipher, cipher_mask,
- cmd);
+ cipher_mask |= BIT(cipher);
+ mt7615_mac_wtbl_update_cipher(dev, wcid, cipher, cipher_mask);
+ err = mt7615_mac_wtbl_update_key(dev, wcid, key, cipher, cipher_mask);
if (err < 0)
return err;
err = mt7615_mac_wtbl_update_pk(dev, wcid, cipher, cipher_mask,
- key->keyidx, cmd);
+ key->keyidx);
if (err < 0)
return err;
@@ -1329,13 +1302,12 @@ int __mt7615_mac_wtbl_set_key(struct mt7615_dev *dev,
int mt7615_mac_wtbl_set_key(struct mt7615_dev *dev,
struct mt76_wcid *wcid,
- struct ieee80211_key_conf *key,
- enum set_key_cmd cmd)
+ struct ieee80211_key_conf *key)
{
int err;
spin_lock_bh(&dev->mt76.lock);
- err = __mt7615_mac_wtbl_set_key(dev, wcid, key, cmd);
+ err = __mt7615_mac_wtbl_set_key(dev, wcid, key);
spin_unlock_bh(&dev->mt76.lock);
return err;
diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/main.c b/drivers/net/wireless/mediatek/mt76/mt7615/main.c
index ab4c1b44..dadb13f2 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/main.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/main.c
@@ -391,18 +391,17 @@ static int mt7615_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
if (cmd == SET_KEY)
*wcid_keyidx = idx;
- else if (idx == *wcid_keyidx)
- *wcid_keyidx = -1;
- else
+ else {
+ if (idx == *wcid_keyidx)
+ *wcid_keyidx = -1;
goto out;
+ }
- mt76_wcid_key_setup(&dev->mt76, wcid,
- cmd == SET_KEY ? key : NULL);
-
+ mt76_wcid_key_setup(&dev->mt76, wcid, key);
if (mt76_is_mmio(&dev->mt76))
- err = mt7615_mac_wtbl_set_key(dev, wcid, key, cmd);
+ err = mt7615_mac_wtbl_set_key(dev, wcid, key);
else
- err = __mt7615_mac_wtbl_set_key(dev, wcid, key, cmd);
+ err = __mt7615_mac_wtbl_set_key(dev, wcid, key);
out:
mt7615_mutex_release(dev);
diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/mt7615.h b/drivers/net/wireless/mediatek/mt76/mt7615/mt7615.h
index 087d4886..ab10ad0e 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/mt7615.h
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/mt7615.h
@@ -484,11 +484,9 @@ int mt7615_mac_write_txwi(struct mt7615_dev *dev, __le32 *txwi,
void mt7615_mac_set_timing(struct mt7615_phy *phy);
int __mt7615_mac_wtbl_set_key(struct mt7615_dev *dev,
struct mt76_wcid *wcid,
- struct ieee80211_key_conf *key,
- enum set_key_cmd cmd);
+ struct ieee80211_key_conf *key);
int mt7615_mac_wtbl_set_key(struct mt7615_dev *dev, struct mt76_wcid *wcid,
- struct ieee80211_key_conf *key,
- enum set_key_cmd cmd);
+ struct ieee80211_key_conf *key);
void mt7615_mac_reset_work(struct work_struct *work);
u32 mt7615_mac_get_sta_tid_sn(struct mt7615_dev *dev, int wcid, u8 tid);
diff --git a/drivers/net/wireless/mediatek/mt76/mt76x02_util.c b/drivers/net/wireless/mediatek/mt76/mt76x02_util.c
index 604ddcc2..324535a0 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76x02_util.c
+++ b/drivers/net/wireless/mediatek/mt76/mt76x02_util.c
@@ -455,20 +455,20 @@ int mt76x02_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
msta = sta ? (struct mt76x02_sta *)sta->drv_priv : NULL;
wcid = msta ? &msta->wcid : &mvif->group_wcid;
- if (cmd == SET_KEY) {
- key->hw_key_idx = wcid->idx;
- wcid->hw_key_idx = idx;
- if (key->flags & IEEE80211_KEY_FLAG_RX_MGMT) {
- key->flags |= IEEE80211_KEY_FLAG_SW_MGMT_TX;
- wcid->sw_iv = true;
- }
- } else {
+ if (cmd != SET_KEY) {
if (idx == wcid->hw_key_idx) {
wcid->hw_key_idx = -1;
wcid->sw_iv = false;
}
- key = NULL;
+ return 0;
+ }
+
+ key->hw_key_idx = wcid->idx;
+ wcid->hw_key_idx = idx;
+ if (key->flags & IEEE80211_KEY_FLAG_RX_MGMT) {
+ key->flags |= IEEE80211_KEY_FLAG_SW_MGMT_TX;
+ wcid->sw_iv = true;
}
mt76_wcid_key_setup(&dev->mt76, wcid, key);
diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/main.c b/drivers/net/wireless/mediatek/mt76/mt7915/main.c
index 7589af4b..06c10451 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/main.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/main.c
@@ -410,16 +410,15 @@ static int mt7915_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
mt7915_mcu_add_bss_info(phy, vif, true);
}
- if (cmd == SET_KEY)
+ if (cmd == SET_KEY) {
*wcid_keyidx = idx;
- else if (idx == *wcid_keyidx)
- *wcid_keyidx = -1;
- else
+ } else {
+ if (idx == *wcid_keyidx)
+ *wcid_keyidx = -1;
goto out;
+ }
- mt76_wcid_key_setup(&dev->mt76, wcid,
- cmd == SET_KEY ? key : NULL);
-
+ mt76_wcid_key_setup(&dev->mt76, wcid, key);
err = mt76_connac_mcu_add_key(&dev->mt76, vif, &msta->bip,
key, MCU_EXT_CMD(STA_REC_UPDATE),
&msta->wcid, cmd);
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/main.c b/drivers/net/wireless/mediatek/mt76/mt7921/main.c
index cdb0d619..744382be 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/main.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/main.c
@@ -569,16 +569,15 @@ static int mt7921_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
mt7921_mutex_acquire(dev);
- if (cmd == SET_KEY)
+ if (cmd == SET_KEY) {
*wcid_keyidx = idx;
- else if (idx == *wcid_keyidx)
- *wcid_keyidx = -1;
- else
+ } else {
+ if (idx == *wcid_keyidx)
+ *wcid_keyidx = -1;
goto out;
+ }
- mt76_wcid_key_setup(&dev->mt76, wcid,
- cmd == SET_KEY ? key : NULL);
-
+ mt76_wcid_key_setup(&dev->mt76, wcid, key);
err = mt76_connac_mcu_add_key(&dev->mt76, vif, &msta->bip,
key, MCU_UNI_CMD(STA_REC_UPDATE),
&msta->wcid, cmd);
diff --git a/drivers/net/wireless/mediatek/mt76/mt7996/main.c b/drivers/net/wireless/mediatek/mt76/mt7996/main.c
index c423b052..2734aae5 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7996/main.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7996/main.c
@@ -351,16 +351,15 @@ static int mt7996_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
mt7996_mcu_add_bss_info(phy, vif, true);
}
- if (cmd == SET_KEY)
+ if (cmd == SET_KEY) {
*wcid_keyidx = idx;
- else if (idx == *wcid_keyidx)
- *wcid_keyidx = -1;
- else
+ } else {
+ if (idx == *wcid_keyidx)
+ *wcid_keyidx = -1;
goto out;
+ }
- mt76_wcid_key_setup(&dev->mt76, wcid,
- cmd == SET_KEY ? key : NULL);
-
+ mt76_wcid_key_setup(&dev->mt76, wcid, key);
err = mt7996_mcu_add_key(&dev->mt76, vif, &msta->bip,
key, MCU_WMWA_UNI_CMD(STA_REC_UPDATE),
&msta->wcid, cmd);
--
2.35.3