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ath9k: fix a null pointer deref issue 

SVN-Revision: 24312
owl
Felix Fietkau 2010-12-07 18:22:43 +00:00
parent f8ed133c0a
commit c8e1389528
1 changed files with 14 additions and 0 deletions
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14
package/mac80211/patches/320-pending_work.patch
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@ -2137,3 +2137,17 @@
} }
/* add interfaces */ /* add interfaces */
--- a/drivers/net/wireless/ath/ath9k/xmit.c
+++ b/drivers/net/wireless/ath/ath9k/xmit.c
@@ -1745,7 +1745,10 @@ int ath_tx_start(struct ieee80211_hw *hw
int frmlen = skb->len + FCS_LEN;
int q;
- txctl->an = (struct ath_node *)sta->drv_priv;
+ /* NOTE: sta can be NULL according to net/mac80211.h */
+ if (sta)
+ txctl->an = (struct ath_node *)sta->drv_priv;
+
if (info->control.hw_key)
frmlen += info->control.hw_key->icv_len;