This is a note to let you know that I've just added the patch titled
wifi: mt76: mt7996: fix pointer calculation in ie countdown event
to the 6.2-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
wifi-mt76-mt7996-fix-pointer-calculation-in-ie-count.patch
and it can be found in the queue-6.2 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 8ed6866b36b7b6dc033f31786149df232d87e60e
Author: Peter Chiu <chui-hao.chiu@xxxxxxxxxxxx>
Date: Fri Mar 3 16:35:55 2023 +0800
wifi: mt76: mt7996: fix pointer calculation in ie countdown event
[ Upstream commit 8b14ce24a0297175bc4ebdf26d45a22b5a33847f ]
Fix the tail and data pointers. The rxd->len in mt7996_mcu_rxd does not
include the length of general rxd. It only includes the length of
firmware event rxd. Use skb->length to get the correct length.
Fixes: 98686cd21624 ("wifi: mt76: mt7996: add driver for MediaTek Wi-Fi 7 (802.11be) devices")
Signed-off-by: Peter Chiu <chui-hao.chiu@xxxxxxxxxxxx>
Signed-off-by: Shayne Chen <shayne.chen@xxxxxxxxxxxx>
Signed-off-by: Felix Fietkau <nbd@xxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/net/wireless/mediatek/mt76/mt7996/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7996/mcu.c
index 18c4e7bc4370d..c8c332ed8a402 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7996/mcu.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7996/mcu.c
@@ -421,7 +421,8 @@ mt7996_mcu_ie_countdown(struct mt7996_dev *dev, struct sk_buff *skb)
if (hdr->band && dev->mt76.phys[hdr->band])
mphy = dev->mt76.phys[hdr->band];
- tail = skb->data + le16_to_cpu(rxd->len);
+ tail = skb->data + skb->len;
+ data += sizeof(struct header);
while (data + sizeof(struct tlv) < tail && le16_to_cpu(tlv->len)) {
switch (le16_to_cpu(tlv->tag)) {
case UNI_EVENT_IE_COUNTDOWN_CSA:
