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Diffstat (limited to 'net/mac80211/rx.c')
-rw-r--r--net/mac80211/rx.c10
1 files changed, 6 insertions, 4 deletions
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index f42d5060a7b..a33f865807f 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -820,7 +820,7 @@ ieee80211_rx_h_decrypt(struct ieee80211_rx_data *rx)
{
struct sk_buff *skb = rx->skb;
struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(skb);
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
+ struct ieee80211_hdr *hdr;
int keyidx;
int hdrlen;
ieee80211_rx_result result = RX_DROP_UNUSABLE;
@@ -861,6 +861,11 @@ ieee80211_rx_h_decrypt(struct ieee80211_rx_data *rx)
if (!(rx->flags & IEEE80211_RX_RA_MATCH))
return RX_CONTINUE;
+ if (skb_linearize(rx->skb))
+ return RX_DROP_UNUSABLE;
+
+ hdr = (struct ieee80211_hdr *)skb->data;
+
/* start without a key */
rx->key = NULL;
@@ -944,9 +949,6 @@ ieee80211_rx_h_decrypt(struct ieee80211_rx_data *rx)
return RX_DROP_MONITOR;
}
- if (skb_linearize(rx->skb))
- return RX_DROP_UNUSABLE;
-
/* Check for weak IVs if possible */
if (rx->sta && rx->key->conf.alg == ALG_WEP &&
ieee80211_is_data(hdr->frame_control) &&