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Subject[ 048/122] mac80211: fix read outside array bounds
Date
From: Greg KH <gregkh@linuxfoundation.org>

3.5-stable review patch. If anyone has any objections, please let me know.

------------------

From: Christian Lamparter <chunkeey@googlemail.com>

commit 353d09c6ceedc1cb0c54fe5002c0ca80b6ee6e4f upstream.

ieee802_1d_to_ac is defined as a const int[8],
but the tid parameter has a range from 0 to 15.

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
net/mac80211/tx.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- 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);



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