This is a note to let you know that I've just added the patch titled
staging: wfx: fix handling of MMIC error
to the 5.8-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:
staging-wfx-fix-handling-of-mmic-error.patch
and it can be found in the queue-5.8 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit d4cf5f501bdb2898a79e46bfb87463c1f773628a
Author: Jérôme Pouiller <jerome.pouiller@xxxxxxxxxx>
Date: Wed Oct 7 12:19:37 2020 +0200
staging: wfx: fix handling of MMIC error
[ Upstream commit 8d350c14ee5eb62ecd40b0991248bfbce511954d ]
As expected, when the device detect a MMIC error, it returns a specific
status. However, it also strip IV from the frame (don't ask me why).
So, with the current code, mac80211 detects a corrupted frame and it
drops it before it handle the MMIC error. The expected behavior would be
to detect MMIC error then to renegotiate the EAP session.
So, this patch correctly informs mac80211 that IV is not available. So,
mac80211 correctly takes into account the MMIC error.
Signed-off-by: Jérôme Pouiller <jerome.pouiller@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20201007101943.749898-2-Jerome.Pouiller@xxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/staging/wfx/data_rx.c b/drivers/staging/wfx/data_rx.c
index 0e959ebc38b56..a9fb5165b33d9 100644
--- a/drivers/staging/wfx/data_rx.c
+++ b/drivers/staging/wfx/data_rx.c
@@ -80,7 +80,7 @@ void wfx_rx_cb(struct wfx_vif *wvif,
goto drop;
if (arg->status == HIF_STATUS_RX_FAIL_MIC)
- hdr->flag |= RX_FLAG_MMIC_ERROR;
+ hdr->flag |= RX_FLAG_MMIC_ERROR | RX_FLAG_IV_STRIPPED;
else if (arg->status)
goto drop;
