------------[ cut here ]------------ Have pending ack frames! WARNING: CPU: 1 PID: 490 at net/mac80211/main.c:1510 ieee80211_free_ack_frame+0x64/0x6c net/mac80211/main.c:1510 Modules linked in: CPU: 1 PID: 490 Comm: kworker/u4:4 Not tainted 6.4.0-rc1-syzkaller-00021-gad2fd53a7870 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023 Workqueue: netns cleanup_net pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : ieee80211_free_ack_frame+0x64/0x6c net/mac80211/main.c:1510 lr : ieee80211_free_ack_frame+0x64/0x6c net/mac80211/main.c:1510 sp : ffff80001d4a7720 x29: ffff80001d4a7720 x28: dfff800000000000 x27: 0000000000000000 x26: 1ffff00003a94f10 x25: 0000000000000001 x24: ffff0000cbe44870 x23: 1ffff00003a94ef1 x22: ffff80001d4a7780 x21: 1ffff00003a94ef0 x20: ffff8000174dc000 x19: ffff0000e323e780 x18: ffff80001d4a6c20 x17: 0000000000000000 x16: ffff800011c2632c x15: 0000000000000002 x14: 0000000000000000 x13: 0000000000000001 x12: 0000000000000001 x11: 0000000000000000 x10: 0000000000000000 x9 : 8d186febd108b900 x8 : 8d186febd108b900 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff80001d4a7018 x4 : ffff80001503c340 x3 : ffff800008587a64 x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000000 Call trace: ieee80211_free_ack_frame+0x64/0x6c net/mac80211/main.c:1510 idr_for_each+0x19c/0x2b4 lib/idr.c:208 ieee80211_free_hw+0xd4/0x41c net/mac80211/main.c:1528 mac80211_hwsim_del_radio+0x26c/0x3d8 drivers/net/wireless/virtual/mac80211_hwsim.c:5403 hwsim_exit_net+0x518/0x5e0 drivers/net/wireless/virtual/mac80211_hwsim.c:6275 ops_exit_list net/core/net_namespace.c:170 [inline] cleanup_net+0x564/0x994 net/core/net_namespace.c:614 process_one_work+0x788/0x12d4 kernel/workqueue.c:2405 worker_thread+0x8e0/0xfe8 kernel/workqueue.c:2552 kthread+0x284/0x30c kernel/kthread.c:379 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:870 irq event stamp: 827280 hardirqs last enabled at (827279): [] __up_console_sem+0x60/0xb4 kernel/printk/printk.c:347 hardirqs last disabled at (827280): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (824908): [] spin_unlock_bh include/linux/spinlock.h:395 [inline] softirqs last enabled at (824908): [] netif_addr_unlock_bh include/linux/netdevice.h:4529 [inline] softirqs last enabled at (824908): [] dev_mc_flush+0x1b4/0x1f8 net/core/dev_addr_lists.c:1036 softirqs last disabled at (824906): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 ---[ end trace 0000000000000000 ]--- hsr_slave_0: left promiscuous mode hsr_slave_1: left promiscuous mode batman_adv: batadv0: Interface deactivated: batadv_slave_0 batman_adv: batadv0: Removing interface: batadv_slave_0 batman_adv: batadv0: Interface deactivated: batadv_slave_1 batman_adv: batadv0: Removing interface: batadv_slave_1 bridge_slave_1: left allmulticast mode bridge_slave_1: left promiscuous mode bridge0: port 2(bridge_slave_1) entered disabled state bridge_slave_0: left allmulticast mode bridge_slave_0: left promiscuous mode bridge0: port 1(bridge_slave_0) entered disabled state veth1_macvtap: left promiscuous mode veth0_macvtap: left promiscuous mode veth1_vlan: left promiscuous mode veth0_vlan: left promiscuous mode team0 (unregistering): Port device team_slave_1 removed team0 (unregistering): Port device team_slave_0 removed bond0 (unregistering): (slave bond_slave_1): Releasing backup interface bond0 (unregistering): (slave bond_slave_0): Releasing backup interface bond0 (unregistering): Released all slaves wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 netdevsim netdevsim5 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 netdevsim netdevsim5 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 netdevsim netdevsim5 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 netdevsim netdevsim5 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 hsr_slave_0: left promiscuous mode hsr_slave_1: left promiscuous mode batman_adv: batadv0: Interface deactivated: batadv_slave_0 batman_adv: batadv0: Removing interface: batadv_slave_0 batman_adv: batadv0: Interface deactivated: batadv_slave_1 batman_adv: batadv0: Removing interface: batadv_slave_1 bridge_slave_1: left allmulticast mode bridge_slave_1: left promiscuous mode bridge0: port 2(bridge_slave_1) entered disabled state bridge_slave_0: left allmulticast mode bridge_slave_0: left promiscuous mode bridge0: port 1(bridge_slave_0) entered disabled state veth1_macvtap: left promiscuous mode veth0_macvtap: left promiscuous mode veth1_vlan: left promiscuous mode veth0_vlan: left promiscuous mode team0 (unregistering): Port device team_slave_1 removed team0 (unregistering): Port device team_slave_0 removed bond0 (unregistering): (slave bond_slave_1): Releasing backup interface bond0 (unregistering): (slave bond_slave_0): Releasing backup interface bond0 (unregistering): Released all slaves