If AR_KeyMiss is set in the rx descriptor and AR_RxFrameOK is unset,
the hardware could not locate a valid key during a decryption attempt.
In this case, the frame must not be reported as decrypted, otherwise
mac80211 sees only random garbage.
Signed-off-by: Felix Fietkau <nbd@xxxxxxxxxxx>
Cc: stable@xxxxxxxxxx
---
drivers/net/wireless/ath/ath9k/ar9003_mac.c | 3 ++-
drivers/net/wireless/ath/ath9k/mac.c | 2 ++
2 files changed, 4 insertions(+), 1 deletions(-)
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_mac.c b/drivers/net/wireless/ath/ath9k/ar9003_mac.c
index a462da2..3b424ca 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_mac.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_mac.c
@@ -616,7 +616,8 @@ int ath9k_hw_process_rxdesc_edma(struct ath_hw *ah, struct ath_rx_status *rxs,
rxs->rs_status |= ATH9K_RXERR_DECRYPT;
} else if (rxsp->status11 & AR_MichaelErr) {
rxs->rs_status |= ATH9K_RXERR_MIC;
- }
+ } else if (rxsp->status11 & AR_KeyMiss)
+ rxs->rs_status |= ATH9K_RXERR_DECRYPT;
}
return 0;
diff --git a/drivers/net/wireless/ath/ath9k/mac.c b/drivers/net/wireless/ath/ath9k/mac.c
index 0b7d125..3efda8a 100644
--- a/drivers/net/wireless/ath/ath9k/mac.c
+++ b/drivers/net/wireless/ath/ath9k/mac.c
@@ -714,6 +714,8 @@ int ath9k_hw_rxprocdesc(struct ath_hw *ah, struct ath_desc *ds,
else if ((ads.ds_rxstatus8 & AR_MichaelErr) &&
rs->rs_keyix != ATH9K_RXKEYIX_INVALID)
rs->rs_status |= ATH9K_RXERR_MIC;
+ else if (ads.ds_rxstatus8 & AR_KeyMiss)
+ rs->rs_status |= ATH9K_RXERR_DECRYPT;
}
return 0;
--
1.7.2.2
--
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