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-rw-r--r--net/mac80211/tx.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 8f68bf9746d0..a910148b8228 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -872,6 +872,8 @@ ieee80211_tx_h_calculate_duration(struct ieee80211_tx_data *tx)
do {
hdr = (void *) skb->data;
+ if (unlikely(ieee80211_is_pspoll(hdr->frame_control)))
+ break; /* must not overwrite AID */
next_len = skb->next ? skb->next->len : 0;
group_addr = is_multicast_ether_addr(hdr->addr1);