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mac80211: fix read outside array bounds

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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 <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Christian Lamparter 2012-07-07 15:07:13 +02:00 committed by John W. Linville
parent f8bf65bf36
commit 353d09c6ce
1 changed files with 1 additions and 1 deletions
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2
net/mac80211/tx.c
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@ -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);