openwrt/package/madwifi/patches/373-sanity_check.patch

--- a/net80211/ieee80211_input.c
+++ b/net80211/ieee80211_input.c
@@ -250,6 +250,9 @@ ieee80211_input(struct ieee80211vap * va
 	if (vap->iv_opmode == IEEE80211_M_MONITOR)
 		goto out;
 
+	if (!skb->data)
+		goto out;
+
 	if (skb->len < sizeof(struct ieee80211_frame_min)) {
 		IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_ANY,
 			ni->ni_macaddr, NULL,
madwifi: add some extra sanity checking SVN-Revision: 12006 2008-07-30 07:05:12 +00:00			`--- a/net80211/ieee80211_input.c`
			`+++ b/net80211/ieee80211_input.c`
madwifi: fix noderef and state machine issues in the currently unused ap-to-ap wds mode; refresh patches SVN-Revision: 13096 2008-11-02 13:04:36 +00:00			`@@ -250,6 +250,9 @@ ieee80211_input(struct ieee80211vap * va`
madwifi: add some extra sanity checking SVN-Revision: 12006 2008-07-30 07:05:12 +00:00			`if (vap->iv_opmode == IEEE80211_M_MONITOR)`
			`goto out;`

			`+ if (!skb->data)`
			`+ goto out;`
			`+`
			`if (skb->len < sizeof(struct ieee80211_frame_min)) {`
			`IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_ANY,`
			`ni->ni_macaddr, NULL,`