From 353d09c6ceedc1cb0c54fe5002c0ca80b6ee6e4f Mon Sep 17 00:00:00 2001 From: Christian Lamparter Date: Sat, 7 Jul 2012 15:07:13 +0200 Subject: [PATCH] mac80211: fix read outside array bounds ieee802_1d_to_ac is defined as a const int[8], but the tid parameter has a range from 0 to 15. Cc: stable@vger.kernel.org Signed-off-by: Christian Lamparter Signed-off-by: John W. Linville --- net/mac80211/tx.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c index e453212fa17f..85cf32d2f7b5 100644 --- a/net/mac80211/tx.c +++ b/net/mac80211/tx.c @@ -2733,7 +2733,7 @@ EXPORT_SYMBOL(ieee80211_get_buffered_bc); void ieee80211_tx_skb_tid(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb, int tid) { - int ac = ieee802_1d_to_ac[tid]; + int ac = ieee802_1d_to_ac[tid & 7]; skb_set_mac_header(skb, 0); skb_set_network_header(skb, 0); -- 2.20.1