A-Team_Digital_Solutions/android_kernel_motorola_sm6375
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cfg80211: add ability to check DA/SA in A-MSDU decapsulation

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We should not accept arbitrary DA/SA inside A-MSDUs, it could be used
to circumvent protections, like allowing a station to send frames and
make them seem to come from somewhere else.

Add the necessary infrastructure in cfg80211 to allow such checks, in
further patches we'll start using them.

Signed-off-by: Johannes Berg <[email protected]>
This commit is contained in:
Johannes Berg 2016-10-05 16:17:01 +02:00
commit 8b935ee2ea
4 changed files with 19 additions and 5 deletions
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3
net/mac80211/rx.c
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@ -2337,7 +2337,8 @@ ieee80211_rx_h_amsdu(struct ieee80211_rx_data *rx)
ieee80211_amsdu_to_8023s(skb, &frame_list, dev->dev_addr,
rx->sdata->vif.type,
rx->local->hw.extra_tx_headroom);
rx->local->hw.extra_tx_headroom,
NULL, NULL);
while (!skb_queue_empty(&frame_list)) {
rx->skb = __skb_dequeue(&frame_list);