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ath9k: discard undersized packets 

Sometimes the hardware will push small packets that trigger a WARN_ON
in mac80211. Discard them early to avoid this issue.

Reported-by: Stijn Tintel <stijn@linux-ipv6.be>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This commit is contained in:
Felix Fietkau 2018-01-22 08:00:16 +02:00 committed by Kalle Valo
parent ebdd7b491b
commit 3c0efb745a
1 changed files with 2 additions and 2 deletions
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4
drivers/net/wireless/ath/ath9k/recv.c
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@ -826,9 +826,9 @@ static int ath9k_rx_skb_preprocess(struct ath_softc *sc,
sc->rx.discard_next = false; sc->rx.discard_next = false;
/* /*
* Discard zero-length packets. * Discard zero-length packets and packets smaller than an ACK
*/ */
if (!rx_stats->rs_datalen) { if (rx_stats->rs_datalen < 10) {
RX_STAT_INC(rx_len_err); RX_STAT_INC(rx_len_err);
goto corrupt; goto corrupt;
} }