Merge tag 'net-6.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netHEADtorvalds/mastertorvalds/HEADmaster

Pull networking fixes from Paolo Abeni:
 "Including fixes from Bluetooth and WiFi. Notably this includes the fix
  for the iwlwifi issue you reported.

  Current release - regressions:

   - core: avoid prefetching NULL pointers

   - wifi:
      - iwlwifi: implement settime64 as stub for MVM/MLD PTP
      - mac80211: fix list iteration in ieee80211_add_virtual_monitor()

   - handshake: fix null-ptr-deref in handshake_complete()

   - eth: mana: fix use-after-free in reset service rescan path

  Previous releases - regressions:

   - openvswitch: avoid needlessly taking the RTNL on vport destroy

   - dsa: properly keep track of conduit reference

   - ipv4:
      - fix error route reference count leak with nexthop objects
      - fib: restore ECMP balance from loopback

   - mptcp: ensure context reset on disconnect()

   - bluetooth: fix potential UaF in btusb

   - nfc: fix deadlock between nfc_unregister_device and
     rfkill_fop_write

   - eth:
      - gve: defer interrupt enabling until NAPI registration
      - i40e: fix scheduling in set_rx_mode
      - macb: relocate mog_init_rings() callback from macb_mac_link_up()
        to macb_open()
      - rtl8150: fix memory leak on usb_submit_urb() failure

   - wifi: 8192cu: fix tid out of range in rtl92cu_tx_fill_desc()

  Previous releases - always broken:

   - ip6_gre: make ip6gre_header() robust

   - ipv6: fix a BUG in rt6_get_pcpu_route() under PREEMPT_RT

   - af_unix: don't post cmsg for SO_INQ unless explicitly asked for

   - phy: mediatek: fix nvmem cell reference leak in
     mt798x_phy_calibration

   - wifi: mac80211: discard beacon frames to non-broadcast address

   - eth:
      - iavf: fix off-by-one issues in iavf_config_rss_reg()
      - stmmac: fix the crash issue for zero copy XDP_TX action
      - team: fix check for port enabled when priority changes"

* tag 'net-6.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (64 commits)
  ipv6: fix a BUG in rt6_get_pcpu_route() under PREEMPT_RT
  net: rose: fix invalid array index in rose_kill_by_device()
  net: enetc: do not print error log if addr is 0
  net: macb: Relocate mog_init_rings() callback from macb_mac_link_up() to macb_open()
  selftests: fib_test: Add test case for ipv4 multi nexthops
  net: fib: restore ECMP balance from loopback
  selftests: fib_nexthops: Add test cases for error routes deletion
  ipv4: Fix reference count leak when using error routes with nexthop objects
  net: usb: sr9700: fix incorrect command used to write single register
  ipv6: BUG() in pskb_expand_head() as part of calipso_skbuff_setattr()
  usbnet: avoid a possible crash in dql_completed()
  gve: defer interrupt enabling until NAPI registration
  net: stmmac: fix the crash issue for zero copy XDP_TX action
  octeontx2-pf: fix "UBSAN: shift-out-of-bounds error"
  af_unix: don't post cmsg for SO_INQ unless explicitly asked for
  net: mana: Fix use-after-free in reset service rescan path
  net: avoid prefetching NULL pointers
  net: bridge: Describe @tunnel_hash member in net_bridge_vlan_group struct
  net: nfc: fix deadlock between nfc_unregister_device and rfkill_fop_write
  net: usb: asix: validate PHY address before use
  ...

5 files changed, 13 insertions, 12 deletions

diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index b51c2c8584ae..c81091a5cc3a 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -1345,7 +1345,6 @@ ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata,
 
 	size = sizeof(*new) + new_head_len + new_tail_len;
 
-	/* new or old multiple BSSID elements? */
 	if (params->mbssid_ies) {
 		mbssid = params->mbssid_ies;
 		size += struct_size(new->mbssid_ies, elem, mbssid->cnt);
@@ -1355,15 +1354,6 @@ ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata,
 		}
 		size += ieee80211_get_mbssid_beacon_len(mbssid, rnr,
 							mbssid->cnt);
-	} else if (old && old->mbssid_ies) {
-		mbssid = old->mbssid_ies;
-		size += struct_size(new->mbssid_ies, elem, mbssid->cnt);
-		if (old && old->rnr_ies) {
-			rnr = old->rnr_ies;
-			size += struct_size(new->rnr_ies, elem, rnr->cnt);
-		}
-		size += ieee80211_get_mbssid_beacon_len(mbssid, rnr,
-							mbssid->cnt);
 	}
 
 	new = kzalloc(size, GFP_KERNEL);
diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index 4f04d95c19d4..7b0aa24c1f97 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -1251,7 +1251,7 @@ configure_monitor:
 	if (!creator_sdata) {
 		struct ieee80211_sub_if_data *other;
 
-		list_for_each_entry(other, &local->mon_list, list) {
+		list_for_each_entry_rcu(other, &local->mon_list, u.mntr.list) {
 			if (!other->vif.bss_conf.mu_mimo_owner)
 				continue;
 
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index e56ad4b9330f..ad53dedd929c 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -1126,7 +1126,10 @@ again:
 
 	while (!ieee80211_chandef_usable(sdata, &chanreq->oper,
 					 IEEE80211_CHAN_DISABLED)) {
-		if (WARN_ON(chanreq->oper.width == NL80211_CHAN_WIDTH_20_NOHT)) {
+		if (chanreq->oper.width == NL80211_CHAN_WIDTH_20_NOHT) {
+			link_id_info(sdata, link_id,
+				     "unusable channel (%d MHz) for connection\n",
+				     chanreq->oper.chan->center_freq);
 			ret = -EINVAL;
 			goto free;
 		}
diff --git a/net/mac80211/ocb.c b/net/mac80211/ocb.c
index a5d4358f122a..ebb4f4d88c23 100644
--- a/net/mac80211/ocb.c
+++ b/net/mac80211/ocb.c
@@ -47,6 +47,9 @@ void ieee80211_ocb_rx_no_sta(struct ieee80211_sub_if_data *sdata,
 	struct sta_info *sta;
 	int band;
 
+	if (!ifocb->joined)
+		return;
+
 	/* XXX: Consider removing the least recently used entry and
 	 *      allow new one to be added.
 	 */
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 6a1899512d07..e0ccd9749853 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -3511,6 +3511,11 @@ ieee80211_rx_h_mgmt_check(struct ieee80211_rx_data *rx)
 	    rx->skb->len < IEEE80211_MIN_ACTION_SIZE)
 		return RX_DROP_U_RUNT_ACTION;
 
+	/* Drop non-broadcast Beacon frames */
+	if (ieee80211_is_beacon(mgmt->frame_control) &&
+	    !is_broadcast_ether_addr(mgmt->da))
+		return RX_DROP;
+
 	if (rx->sdata->vif.type == NL80211_IFTYPE_AP &&
 	    ieee80211_is_beacon(mgmt->frame_control) &&
 	    !(rx->flags & IEEE80211_RX_BEACON_REPORTED)) {