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mac80211: add missing key check 

ieee80211_tx_h_select_key might decide that a frame
need not be encrypted at all, in which case it will
clear tx->key. In that case it may crash if a key
was previously selected, e.g. as the default key.

This is also due to my patch
"mac80211: move control.hw_key assignment".

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Johannes Berg 2010-01-22 22:07:59 +01:00 committed by John W. Linville
parent b92f7d3083
commit f12553ebe0
1 changed files with 1 additions and 1 deletions
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2
net/mac80211/tx.c
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@ -557,7 +557,7 @@ ieee80211_tx_h_select_key(struct ieee80211_tx_data *tx)
break;
}
if (!skip_hw &&
if (!skip_hw && tx->key &&
tx->key->conf.flags & KEY_FLAG_UPLOADED_TO_HARDWARE)
info->control.hw_key = &tx->key->conf;
}