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authorDavid S. Miller <davem@davemloft.net>2012-06-28 16:58:09 -0700
committerDavid S. Miller <davem@davemloft.net>2012-06-28 16:58:09 -0700
commitca33c00fff12b15428003b7b0423b313190ef03a (patch)
tree379c58de3d8a04243e1a52f61d1eb22fa2c52f53 /net
parent9740e001932f59ee007d13ee3f39bb1b61086651 (diff)
parentde03309bd209b6fb025e9359266e0cbb441f7441 (diff)
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Merge branch 'for-davem' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless
John Linville says: ==================== Amitkumar Karwar gives us two mwifiex fixes: one fixes some skb manipulations when handling some event messages; and another that does some similar fixing on an error path. Avinash Patil gives us a fix for for a memory leak in mwifiex. Dan Rosenberg offers an NFC NCI fix to enforce some message length limits to prevent buffer overflows. Eliad Peller provides a mac80211 fix to prevent some frames from being built with an invalid BSSID. Eric Dumazet sends an NFC fix to prevent a BUG caused by a NULL pointer dereference. Felix Fietkau has an ath9k fix for a regression causing LEAP-authenticated connection failures. Johannes Berg provides an iwlwifi fix that eliminates some log SPAM after an authentication/association timeout. He also provides a mac80211 fix to prevent incorrectly addressing certain action frames (and in so doing, to comply with the 802.11 specs). Larry Finger provides a few USB IDs for the rtl8192cu driver -- should be harmless. Panayiotis Karabassis provices a one-liner to fix kernel bug 42903 (a system freeze). Randy Dunlap provides a one-line Kconfig change to prevent build failures with some configurations. Stone Piao provides an mwifiex sequence numbering fix and a fix to prevent mwifiex from attempting to include eapol frames in an aggregation frame. Finally, Tom Hughes provides an ath9k fix for a NULL pointer dereference. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
-rw-r--r--net/mac80211/mlme.c13
-rw-r--r--net/mac80211/rx.c5
-rw-r--r--net/nfc/nci/ntf.c10
-rw-r--r--net/nfc/rawsock.c5
4 files changed, 19 insertions, 14 deletions
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 66e4fcdd1c6b..a4bb856de08f 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -1342,7 +1342,6 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata,
struct ieee80211_local *local = sdata->local;
struct sta_info *sta;
u32 changed = 0;
- u8 bssid[ETH_ALEN];
ASSERT_MGD_MTX(ifmgd);
@@ -1354,10 +1353,7 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata,
ieee80211_stop_poll(sdata);
- memcpy(bssid, ifmgd->associated->bssid, ETH_ALEN);
-
ifmgd->associated = NULL;
- memset(ifmgd->bssid, 0, ETH_ALEN);
/*
* we need to commit the associated = NULL change because the
@@ -1377,7 +1373,7 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata,
netif_carrier_off(sdata->dev);
mutex_lock(&local->sta_mtx);
- sta = sta_info_get(sdata, bssid);
+ sta = sta_info_get(sdata, ifmgd->bssid);
if (sta) {
set_sta_flag(sta, WLAN_STA_BLOCK_BA);
ieee80211_sta_tear_down_BA_sessions(sta, tx);
@@ -1386,13 +1382,16 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata,
/* deauthenticate/disassociate now */
if (tx || frame_buf)
- ieee80211_send_deauth_disassoc(sdata, bssid, stype, reason,
- tx, frame_buf);
+ ieee80211_send_deauth_disassoc(sdata, ifmgd->bssid, stype,
+ reason, tx, frame_buf);
/* flush out frame */
if (tx)
drv_flush(local, false);
+ /* clear bssid only after building the needed mgmt frames */
+ memset(ifmgd->bssid, 0, ETH_ALEN);
+
/* remove AP and TDLS peers */
sta_info_flush(local, sdata);
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 7bcecf73aafb..965e6ec0adb6 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -2455,7 +2455,7 @@ ieee80211_rx_h_action_return(struct ieee80211_rx_data *rx)
* frames that we didn't handle, including returning unknown
* ones. For all other modes we will return them to the sender,
* setting the 0x80 bit in the action category, as required by
- * 802.11-2007 7.3.1.11.
+ * 802.11-2012 9.24.4.
* Newer versions of hostapd shall also use the management frame
* registration mechanisms, but older ones still use cooked
* monitor interfaces so push all frames there.
@@ -2465,6 +2465,9 @@ ieee80211_rx_h_action_return(struct ieee80211_rx_data *rx)
sdata->vif.type == NL80211_IFTYPE_AP_VLAN))
return RX_DROP_MONITOR;
+ if (is_multicast_ether_addr(mgmt->da))
+ return RX_DROP_MONITOR;
+
/* do not return rejected action frames */
if (mgmt->u.action.category & 0x80)
return RX_DROP_UNUSABLE;
diff --git a/net/nfc/nci/ntf.c b/net/nfc/nci/ntf.c
index cb2646179e5f..2ab196a9f228 100644
--- a/net/nfc/nci/ntf.c
+++ b/net/nfc/nci/ntf.c
@@ -106,7 +106,7 @@ static __u8 *nci_extract_rf_params_nfca_passive_poll(struct nci_dev *ndev,
nfca_poll->sens_res = __le16_to_cpu(*((__u16 *)data));
data += 2;
- nfca_poll->nfcid1_len = *data++;
+ nfca_poll->nfcid1_len = min_t(__u8, *data++, NFC_NFCID1_MAXSIZE);
pr_debug("sens_res 0x%x, nfcid1_len %d\n",
nfca_poll->sens_res, nfca_poll->nfcid1_len);
@@ -130,7 +130,7 @@ static __u8 *nci_extract_rf_params_nfcb_passive_poll(struct nci_dev *ndev,
struct rf_tech_specific_params_nfcb_poll *nfcb_poll,
__u8 *data)
{
- nfcb_poll->sensb_res_len = *data++;
+ nfcb_poll->sensb_res_len = min_t(__u8, *data++, NFC_SENSB_RES_MAXSIZE);
pr_debug("sensb_res_len %d\n", nfcb_poll->sensb_res_len);
@@ -145,7 +145,7 @@ static __u8 *nci_extract_rf_params_nfcf_passive_poll(struct nci_dev *ndev,
__u8 *data)
{
nfcf_poll->bit_rate = *data++;
- nfcf_poll->sensf_res_len = *data++;
+ nfcf_poll->sensf_res_len = min_t(__u8, *data++, NFC_SENSF_RES_MAXSIZE);
pr_debug("bit_rate %d, sensf_res_len %d\n",
nfcf_poll->bit_rate, nfcf_poll->sensf_res_len);
@@ -331,7 +331,7 @@ static int nci_extract_activation_params_iso_dep(struct nci_dev *ndev,
switch (ntf->activation_rf_tech_and_mode) {
case NCI_NFC_A_PASSIVE_POLL_MODE:
nfca_poll = &ntf->activation_params.nfca_poll_iso_dep;
- nfca_poll->rats_res_len = *data++;
+ nfca_poll->rats_res_len = min_t(__u8, *data++, 20);
pr_debug("rats_res_len %d\n", nfca_poll->rats_res_len);
if (nfca_poll->rats_res_len > 0) {
memcpy(nfca_poll->rats_res,
@@ -341,7 +341,7 @@ static int nci_extract_activation_params_iso_dep(struct nci_dev *ndev,
case NCI_NFC_B_PASSIVE_POLL_MODE:
nfcb_poll = &ntf->activation_params.nfcb_poll_iso_dep;
- nfcb_poll->attrib_res_len = *data++;
+ nfcb_poll->attrib_res_len = min_t(__u8, *data++, 50);
pr_debug("attrib_res_len %d\n", nfcb_poll->attrib_res_len);
if (nfcb_poll->attrib_res_len > 0) {
memcpy(nfcb_poll->attrib_res,
diff --git a/net/nfc/rawsock.c b/net/nfc/rawsock.c
index ec1134c9e07f..8b8a6a2b2bad 100644
--- a/net/nfc/rawsock.c
+++ b/net/nfc/rawsock.c
@@ -54,7 +54,10 @@ static int rawsock_release(struct socket *sock)
{
struct sock *sk = sock->sk;
- pr_debug("sock=%p\n", sock);
+ pr_debug("sock=%p sk=%p\n", sock, sk);
+
+ if (!sk)
+ return 0;
sock_orphan(sk);
sock_put(sk);