From: Sara Sharon <[email protected]>

If we build AMSDU from GSO packets, it can lead to
bad results if anyone tries to call skb_gso_segment
on the packets.

Signed-off-by: Sara Sharon <[email protected]>
Signed-off-by: Luca Coelho <[email protected]>
---
 net/mac80211/tx.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 582b3d49f891..565fe7291c7d 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -3218,6 +3218,9 @@ static bool ieee80211_amsdu_aggregate(struct 
ieee80211_sub_if_data *sdata,
        if (!ieee80211_hw_check(&local->hw, TX_AMSDU))
                return false;
 
+       if (skb_is_gso(skb))
+               return false;
+
        if (!txq)
                return false;
 
@@ -3242,7 +3245,7 @@ static bool ieee80211_amsdu_aggregate(struct 
ieee80211_sub_if_data *sdata,
        tin = &txqi->tin;
        flow = fq_flow_classify(fq, tin, skb, fq_flow_get_default_func);
        head = skb_peek_tail(&flow->queue);
-       if (!head)
+       if (!head || skb_is_gso(head))
                goto out;
 
        orig_len = head->len;
-- 
2.19.2

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