This is a note to let you know that I've just added the patch titled
mac80211: enable assoc check for mesh interfaces
to the 4.1-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:
mac80211-enable-assoc-check-for-mesh-interfaces.patch
and it can be found in the queue-4.1 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From 3633ebebab2bbe88124388b7620442315c968e8f Mon Sep 17 00:00:00 2001
From: Bob Copeland <[email protected]>
Date: Sat, 13 Jun 2015 10:16:31 -0400
Subject: mac80211: enable assoc check for mesh interfaces
From: Bob Copeland <[email protected]>
commit 3633ebebab2bbe88124388b7620442315c968e8f upstream.
We already set a station to be associated when peering completes, both
in user space and in the kernel. Thus we should always have an
associated sta before sending data frames to that station.
Failure to check assoc state can cause crashes in the lower-level driver
due to transmitting unicast data frames before driver sta structures
(e.g. ampdu state in ath9k) are initialized. This occurred when
forwarding in the presence of fixed mesh paths: frames were transmitted
to stations with whom we hadn't yet completed peering.
Reported-by: Alexis Green <[email protected]>
Tested-by: Jesse Jones <[email protected]>
Signed-off-by: Bob Copeland <[email protected]>
Signed-off-by: Johannes Berg <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
net/mac80211/tx.c | 3 ---
1 file changed, 3 deletions(-)
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -301,9 +301,6 @@ ieee80211_tx_h_check_assoc(struct ieee80
if (tx->sdata->vif.type == NL80211_IFTYPE_WDS)
return TX_CONTINUE;
- if (tx->sdata->vif.type == NL80211_IFTYPE_MESH_POINT)
- return TX_CONTINUE;
-
if (tx->flags & IEEE80211_TX_PS_BUFFERED)
return TX_CONTINUE;
Patches currently in stable-queue which might be from [email protected] are
queue-4.1/mac80211-enable-assoc-check-for-mesh-interfaces.patch
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