From: Bob Copeland <me@xxxxxxxxxxxxxxx> This patch has been added to the 3.12 stable tree. If you have any objections, please let us know. =============== 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 <agreen@xxxxxxxxxxxx> Tested-by: Jesse Jones <jjones@xxxxxxxxxxxx> Signed-off-by: Bob Copeland <me@xxxxxxxxxxxxxxx> Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx> Signed-off-by: Jiri Slaby <jslaby@xxxxxxx> --- net/mac80211/tx.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c index d36e0977f44a..eac14e99c941 100644 --- a/net/mac80211/tx.c +++ b/net/mac80211/tx.c @@ -296,9 +296,6 @@ ieee80211_tx_h_check_assoc(struct ieee80211_tx_data *tx) 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; -- 2.5.3 -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html