Commit 3c0efb74 authored Jan 22, 2018 by Felix Fietkau Committed by Kalle Valo Jan 25, 2018

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>

parent ebdd7b49

drivers/net/wireless/ath/ath9k/recv.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -826,9 +826,9 @@ static int ath9k_rx_skb_preprocess(struct ath_softc *sc,
		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);
		goto corrupt;
		}