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mt76: fix corrupted software generated tx CCMP PN

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[ Upstream commit 906d2d3f87 ]

Since ccmp_pn is u8 *, the second half needs to start at array index 4
instead of 0. Fixes a connection stall after a certain amount of traffic

Fixes: 2340523646 ("mt76: fix transmission of encrypted management frames")
Cc: stable@vger.kernel.org
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Felix Fietkau
2019-09-02 08:55:14 -04:00
committed by Greg Kroah-Hartman
parent 0d7f329e24
commit 173b6557fc
1 changed files with 1 additions and 1 deletions
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2
drivers/net/wireless/mediatek/mt76/mt76x2_mac_common.c
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@@ -402,7 +402,7 @@ void mt76x2_mac_write_txwi(struct mt76x2_dev *dev, struct mt76x2_txwi *txwi,
ccmp_pn[6] = pn >> 32;
ccmp_pn[7] = pn >> 40;
txwi->iv = *((__le32 *)&ccmp_pn[0]);
txwi->eiv = *((__le32 *)&ccmp_pn[1]);
txwi->eiv = *((__le32 *)&ccmp_pn[4]);
}
spin_lock_bh(&dev->mt76.lock);