1 files changed, 3 insertions, 2 deletions

diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index ea79668c2e5f..df1bb7e16cfe 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -1150,11 +1150,12 @@ void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
         int err;
 
         /* 24 + 6 = header + auth_algo + auth_transaction + status_code */
-        skb = dev_alloc_skb(local->hw.extra_tx_headroom + 24 + 6 + extra_len);
+        skb = dev_alloc_skb(local->hw.extra_tx_headroom + IEEE80211_WEP_IV_LEN +
+                            24 + 6 + extra_len + IEEE80211_WEP_ICV_LEN);
         if (!skb)
                 return;
 
-        skb_reserve(skb, local->hw.extra_tx_headroom);
+        skb_reserve(skb, local->hw.extra_tx_headroom + IEEE80211_WEP_IV_LEN);
 
         mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24 + 6);
         memset(mgmt, 0, 24 + 6);