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- From: Lorenzo Bianconi <[email protected]>
- Date: Fri, 31 Aug 2018 01:04:13 +0200
- Subject: [PATCH] mac80211: fix an off-by-one issue in A-MSDU
- max_subframe computation
- Initialize 'n' to 2 in order to take into account also the first
- packet in the estimation of max_subframe limit for a given A-MSDU
- since frag_tail pointer is NULL when ieee80211_amsdu_aggregate
- routine analyzes the second frame.
- Fixes: 6e0456b54545 ("mac80211: add A-MSDU tx support")
- Signed-off-by: Lorenzo Bianconi <[email protected]>
- Signed-off-by: Johannes Berg <[email protected]>
- ---
- --- a/net/mac80211/tx.c
- +++ b/net/mac80211/tx.c
- @@ -3166,7 +3166,7 @@ static bool ieee80211_amsdu_aggregate(st
- void *data;
- bool ret = false;
- unsigned int orig_len;
- - int n = 1, nfrags, pad = 0;
- + int n = 2, nfrags, pad = 0;
- u16 hdrlen;
-
- if (!ieee80211_hw_check(&local->hw, TX_AMSDU))
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