Merge tag 'net-5.18-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Pull networking fixes from Jakub Kicinski:
 "Including fixes from wireless, and bluetooth.

  No outstanding fires.

  Current release - regressions:

   - eth: atlantic: always deep reset on pm op, fix null-deref

  Current release - new code bugs:

   - rds: use maybe_get_net() when acquiring refcount on TCP sockets
     [refinement of a previous fix]

   - eth: ocelot: mark traps with a bool instead of guessing type based
     on list membership

  Previous releases - regressions:

   - net: fix skipping features in for_each_netdev_feature()

   - phy: micrel: fix null-derefs on suspend/resume and probe

   - bcmgenet: check for Wake-on-LAN interrupt probe deferral

  Previous releases - always broken:

   - ipv4: drop dst in multicast routing path, prevent leaks

   - ping: fix address binding wrt vrf

   - net: fix wrong network header length when BPF protocol translation
     is used on skbs with a fraglist

   - bluetooth: fix the creation of hdev->name

   - rfkill: uapi: fix RFKILL_IOCTL_MAX_SIZE ioctl request definition

   - wifi: iwlwifi: iwl-dbg: use del_timer_sync() before freeing

   - wifi: ath11k: reduce the wait time of 11d scan and hw scan while
     adding an interface

   - mac80211: fix rx reordering with non explicit / psmp ack policy

   - mac80211: reset MBSSID parameters upon connection

   - nl80211: fix races in nl80211_set_tx_bitrate_mask()

   - tls: fix context leak on tls_device_down

   - sched: act_pedit: really ensure the skb is writable

   - batman-adv: don't skb_split skbuffs with frag_list

   - eth: ocelot: fix various issues with TC actions (null-deref; bad
     stats; ineffective drops; ineffective filter removal)"

* tag 'net-5.18-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (61 commits)
  tls: Fix context leak on tls_device_down
  net: sfc: ef10: fix memory leak in efx_ef10_mtd_probe()
  net/smc: non blocking recvmsg() return -EAGAIN when no data and signal_pending
  net: dsa: bcm_sf2: Fix Wake-on-LAN with mac_link_down()
  mlxsw: Avoid warning during ip6gre device removal
  net: bcmgenet: Check for Wake-on-LAN interrupt probe deferral
  net: ethernet: mediatek: ppe: fix wrong size passed to memset()
  Bluetooth: Fix the creation of hdev->name
  i40e: i40e_main: fix a missing check on list iterator
  net/sched: act_pedit: really ensure the skb is writable
  s390/lcs: fix variable dereferenced before check
  s390/ctcm: fix potential memory leak
  s390/ctcm: fix variable dereferenced before check
  net: atlantic: verify hw_head_ lies within TX buffer ring
  net: atlantic: add check for MAX_SKB_FRAGS
  net: atlantic: reduce scope of is_rsc_complete
  net: atlantic: fix "frag[0] not initialized"
  net: stmmac: fix missing pci_disable_device() on error in stmmac_pci_probe()
  net: phy: micrel: Fix incorrect variable type in micrel
  decnet: Use container_of() for struct dn_neigh casts
  ...

1 files changed, 8 insertions, 2 deletions

diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c
index 28bfa7b7b73c..e9ec63e0e395 100644
--- a/drivers/net/wireless/mac80211_hwsim.c
+++ b/drivers/net/wireless/mac80211_hwsim.c
@@ -2202,11 +2202,14 @@ mac80211_hwsim_sta_rc_update(struct ieee80211_hw *hw,
 	if (!data->use_chanctx) {
 		confbw = data->bw;
 	} else {
-		struct ieee80211_chanctx_conf *chanctx_conf =
-			rcu_dereference(vif->chanctx_conf);
+		struct ieee80211_chanctx_conf *chanctx_conf;
+
+		rcu_read_lock();
+		chanctx_conf = rcu_dereference(vif->chanctx_conf);
 
 		if (!WARN_ON(!chanctx_conf))
 			confbw = chanctx_conf->def.width;
+		rcu_read_unlock();
 	}
 
 	WARN(bw > hwsim_get_chanwidth(confbw),
@@ -2475,11 +2478,13 @@ static void hw_scan_work(struct work_struct *work)
 			if (req->ie_len)
 				skb_put_data(probe, req->ie, req->ie_len);
 
+			rcu_read_lock();
 			if (!ieee80211_tx_prepare_skb(hwsim->hw,
 						      hwsim->hw_scan_vif,
 						      probe,
 						      hwsim->tmp_chan->band,
 						      NULL)) {
+				rcu_read_unlock();
 				kfree_skb(probe);
 				continue;
 			}
@@ -2487,6 +2492,7 @@ static void hw_scan_work(struct work_struct *work)
 			local_bh_disable();
 			mac80211_hwsim_tx_frame(hwsim->hw, probe,
 						hwsim->tmp_chan);
+			rcu_read_unlock();
 			local_bh_enable();
 		}
 	}