diff --git a/net/mac80211/wpa.c b/net/mac80211/wpa.c
index 7819a2507d39..b4d67ec50e63 100644
--- a/net/mac80211/wpa.c
+++ b/net/mac80211/wpa.c
@@ -514,6 +514,9 @@ ieee80211_crypto_ccmp_decrypt(struct ieee80211_rx_data *rx,
 			return RX_DROP_UNUSABLE;
 	}
 
+	/* reload hdr - skb might have been reallocated */
+	hdr = (void *)rx->skb->data;
+
 	data_len = skb->len - hdrlen - IEEE80211_CCMP_HDR_LEN - mic_len;
 	if (!rx->sta || data_len < 0)
 		return RX_DROP_UNUSABLE;
@@ -744,6 +747,9 @@ ieee80211_crypto_gcmp_decrypt(struct ieee80211_rx_data *rx)
 			return RX_DROP_UNUSABLE;
 	}
 
+	/* reload hdr - skb might have been reallocated */
+	hdr = (void *)rx->skb->data;
+
 	data_len = skb->len - hdrlen - IEEE80211_GCMP_HDR_LEN - mic_len;
 	if (!rx->sta || data_len < 0)
 		return RX_DROP_UNUSABLE;