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madwifi: fix some potential null pointer derefs with wds

Browse Source 
SVN-Revision: 19322
v19.07.3_mercusys_ac12_duma
Felix Fietkau 15 years ago
parent 6351d88e29
commit e85f50118c
7 changed files with 17 additions and 15 deletions
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8
package/madwifi/patches/370-wdsvap.patch
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@ -794,7 +794,7 @@
vap->iv_stats.is_rx_mgtdiscard++;
return;
}
@@ -3471,13 +3519,54 @@ ieee80211_recv_mgmt(struct ieee80211vap
@@ -3471,13 +3519,56 @@ ieee80211_recv_mgmt(struct ieee80211vap
*/
if (ic->ic_flags & IEEE80211_F_SCAN) {
ieee80211_add_scan(vap, &scan, wh, subtype, rssi, rtsf);
@ -822,13 +822,15 @@
+ if (!memcmp(avp->wds_mac, wh->i_addr2, IEEE80211_ADDR_LEN)) {
+ if (avp->iv_state != IEEE80211_S_RUN)
+ continue;
+ if (!avp->iv_wdsnode)
+ continue;
+ found = 1;
+ break;
+ }
+ }
+ if (found)
+ ni = ni_or_null = avp->iv_wdsnode;
+ } else if (vap->iv_opmode == IEEE80211_M_WDS) {
+ } else if ((vap->iv_opmode == IEEE80211_M_WDS) && vap->iv_wdsnode) {
+ found = 1;
+ ni = ni_or_null = vap->iv_wdsnode;
+ }
@ -854,7 +856,7 @@
} else {
/*
* Copy data from beacon to neighbor table.
@@ -3490,6 +3579,7 @@ ieee80211_recv_mgmt(struct ieee80211vap
@@ -3490,6 +3581,7 @@ ieee80211_recv_mgmt(struct ieee80211vap
IEEE80211_ADDR_COPY(ni->ni_bssid, wh->i_addr3);
memcpy(ni->ni_tstamp.data, scan.tstamp,
sizeof(ni->ni_tstamp));

2
package/madwifi/patches/387-maxassoc.patch
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@ -56,7 +56,7 @@
/*
--- a/net80211/ieee80211_input.c
+++ b/net80211/ieee80211_input.c
@@ -4018,7 +4018,26 @@ ieee80211_recv_mgmt(struct ieee80211vap
@@ -4020,7 +4020,26 @@ ieee80211_recv_mgmt(struct ieee80211vap
vap->iv_stats.is_rx_assoc_norate++;
return;
}

2
package/madwifi/patches/390-frame_type.patch
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@ -1,6 +1,6 @@
--- a/net80211/ieee80211_input.c
+++ b/net80211/ieee80211_input.c
@@ -4441,7 +4441,9 @@ ath_eth_type_trans(struct sk_buff *skb,
@@ -4443,7 +4443,9 @@ ath_eth_type_trans(struct sk_buff *skb,
if (memcmp(eth->h_dest, dev->dev_addr, ETH_ALEN))
skb->pkt_type = PACKET_OTHERHOST;

4
package/madwifi/patches/393-mbss_vap_auth.patch
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@ -327,7 +327,7 @@
int found = 0;
IEEE80211_LOCK_IRQ(vap->iv_ic);
@@ -3551,10 +3561,12 @@ ieee80211_recv_mgmt(struct ieee80211vap
@@ -3553,10 +3563,12 @@ ieee80211_recv_mgmt(struct ieee80211vap
ni->ni_associd |= 0xc000;
avp->iv_wdsnode = ieee80211_ref_node(ni);
IEEE80211_UNLOCK_IRQ(ic);
@ -341,7 +341,7 @@
} else {
/*
* Copy data from beacon to neighbor table.
@@ -3593,6 +3605,8 @@ ieee80211_recv_mgmt(struct ieee80211vap
@@ -3595,6 +3607,8 @@ ieee80211_recv_mgmt(struct ieee80211vap
ni->ni_rssi = rssi;
ni->ni_rtsf = rtsf;
ni->ni_last_rx = jiffies;

2
package/madwifi/patches/394-probereq.patch
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@ -1,6 +1,6 @@
--- a/net80211/ieee80211_input.c
+++ b/net80211/ieee80211_input.c
@@ -3619,6 +3619,8 @@ ieee80211_recv_mgmt(struct ieee80211vap
@@ -3621,6 +3621,8 @@ ieee80211_recv_mgmt(struct ieee80211vap
vap->iv_stats.is_rx_mgtdiscard++;
return;
}

6
package/madwifi/patches/441-fix_ibss_node_handling.patch
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@ -44,8 +44,8 @@
if (dir != IEEE80211_FC1_DIR_NODS) {
IEEE80211_DISCARD(vap, IEEE80211_MSG_ANY,
wh, "data", "invalid dir 0x%x", dir);
@@ -3556,6 +3561,11 @@ ieee80211_recv_mgmt(struct ieee80211vap
} else if (vap->iv_opmode == IEEE80211_M_WDS) {
@@ -3558,6 +3563,11 @@ ieee80211_recv_mgmt(struct ieee80211vap
} else if ((vap->iv_opmode == IEEE80211_M_WDS) && vap->iv_wdsnode) {
found = 1;
ni = ni_or_null = vap->iv_wdsnode;
+ } else if (vap->iv_opmode == IEEE80211_M_IBSS) {
@ -56,7 +56,7 @@
}
IEEE80211_UNLOCK_IRQ(vap->iv_ic);
@@ -3684,19 +3694,8 @@ ieee80211_recv_mgmt(struct ieee80211vap
@@ -3686,19 +3696,8 @@ ieee80211_recv_mgmt(struct ieee80211vap
vap->iv_stats.is_rx_ssidmismatch++; /*XXX*/
return;
}

8
package/madwifi/patches/451-ibss_race_fix.patch
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@ -53,13 +53,13 @@
int found = 0;
IEEE80211_LOCK_IRQ(vap->iv_ic);
@@ -3568,14 +3561,12 @@ ieee80211_recv_mgmt(struct ieee80211vap
@@ -3570,14 +3563,12 @@ ieee80211_recv_mgmt(struct ieee80211vap
}
}
if (found)
- ni = ni_or_null = avp->iv_wdsnode;
+ tni = ieee80211_ref_node(avp->iv_wdsnode);
} else if (vap->iv_opmode == IEEE80211_M_WDS) {
} else if ((vap->iv_opmode == IEEE80211_M_WDS) && vap->iv_wdsnode) {
found = 1;
- ni = ni_or_null = vap->iv_wdsnode;
- } else if (vap->iv_opmode == IEEE80211_M_IBSS) {
@ -72,7 +72,7 @@
found = 1;
}
IEEE80211_UNLOCK_IRQ(vap->iv_ic);
@@ -3583,20 +3574,21 @@ ieee80211_recv_mgmt(struct ieee80211vap
@@ -3585,20 +3576,21 @@ ieee80211_recv_mgmt(struct ieee80211vap
if (!found)
break;
@ -100,7 +100,7 @@
} else {
/*
* Copy data from beacon to neighbor table.
@@ -3604,39 +3596,38 @@ ieee80211_recv_mgmt(struct ieee80211vap
@@ -3606,39 +3598,38 @@ ieee80211_recv_mgmt(struct ieee80211vap
* ieee80211_add_neighbor(), so we just copy
* everything over to be safe.
*/

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