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mac80211: Fix MLO address translation for multiple bss case

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[ Upstream commit fa22b51ace8aa106267636f36170e940e676809c ]

When multiple interfaces are present in the local interface
list, new skb copy is taken before rx processing except for
the first interface. The address translation happens each
time only on the original skb since the hdr pointer is not
updated properly to the newly created skb.

As a result frames start to drop in userspace when address
based checks or search fails.

Signed-off-by: Sriram R <quic_srirrama@quicinc.com>
Link: https://lore.kernel.org/r/20221208040050.25922-1-quic_srirrama@quicinc.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Sriram R 2022-12-08 09:30:50 +05:30 committed by Greg Kroah-Hartman
parent 9f31d8c889
commit ea2be0ca69
1 changed files with 3 additions and 0 deletions
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3
net/mac80211/rx.c
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@ -4859,6 +4859,9 @@ static bool ieee80211_prepare_and_rx_handle(struct ieee80211_rx_data *rx,
*/
shwt = skb_hwtstamps(rx->skb);
shwt->hwtstamp = skb_hwtstamps(skb)->hwtstamp;
/* Update the hdr pointer to the new skb for translation below */
hdr = (struct ieee80211_hdr *)rx->skb->data;
}
if (unlikely(rx->sta && rx->sta->sta.mlo)) {