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authorYoni Divinsky <yoni.divinsky@ti.com>2012-01-16 15:18:59 +0200
committerJohn W. Linville <linville@tuxdriver.com>2012-01-16 15:01:16 -0500
commitd32a102819eef99d4d87019266bea208447be0a0 (patch)
treeff6484ac0f843dc48c24db2604bfbef1424967e0 /net/mac80211/wpa.c
parent331d9301ed4d0fe33e9762c62f2870243bcf77eb (diff)
downloadlinux-d32a102819eef99d4d87019266bea208447be0a0.tar.bz2
mac80211: fix tx->skb NULL pointer dereference
In function ieee80211_tx_h_encrypt the var info was initialized from tx->skb, since the fucntion is called after the function ieee80211_tx_h_fragment tx->skb is not valid anymore. Signed-off-by: Yoni Divinsky <yoni.divinsky@ti.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/mac80211/wpa.c')
-rw-r--r--net/mac80211/wpa.c19
1 files changed, 19 insertions, 0 deletions
diff --git a/net/mac80211/wpa.c b/net/mac80211/wpa.c
index 422b79851ec5..b758350919ff 100644
--- a/net/mac80211/wpa.c
+++ b/net/mac80211/wpa.c
@@ -643,3 +643,22 @@ ieee80211_crypto_aes_cmac_decrypt(struct ieee80211_rx_data *rx)
return RX_CONTINUE;
}
+
+ieee80211_tx_result
+ieee80211_crypto_hw_encrypt(struct ieee80211_tx_data *tx)
+{
+ struct sk_buff *skb;
+ struct ieee80211_tx_info *info = NULL;
+
+ skb_queue_walk(&tx->skbs, skb) {
+ info = IEEE80211_SKB_CB(skb);
+
+ /* handle hw-only algorithm */
+ if (!info->control.hw_key)
+ return TX_DROP;
+ }
+
+ ieee80211_tx_set_protected(tx);
+
+ return TX_CONTINUE;
+}