------------[ cut here ]------------
Have pending ack frames!
WARNING: CPU: 1 PID: 440 at net/mac80211/main.c:1427 ieee80211_free_ack_frame+0x64/0x6c net/mac80211/main.c:1427
Modules linked in:
CPU: 1 PID: 440 Comm: kworker/u4:4 Not tainted 5.15.181-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025
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:1427
lr : ieee80211_free_ack_frame+0x64/0x6c net/mac80211/main.c:1427
sp : ffff80001fb57740
x29: ffff80001fb57740 x28: 0000000000000000 x27: ffff80001fb57780
x26: dfff800000000000 x25: dfff800000000000 x24: ffff0000d613a000
x23: 0000000000000001 x22: ffff0000c0465630 x21: ffff0000da3fb258
x20: ffff80001658e000 x19: ffff0000c60f1280 x18: 0000000000000001
x17: 0000000000000000 x16: ffff8000111a3970 x15: 00000000ffffffff
x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100
x11: 0000000000000000 x10: 0000000000000000 x9 : a1cd51bd06b0b300
x8 : a1cd51bd06b0b300 x7 : 0000000000000001 x6 : 0000000000000001
x5 : ffff80001fb57038 x4 : ffff80001422f280 x3 : ffff800008503848
x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000018
Call trace:
 ieee80211_free_ack_frame+0x64/0x6c net/mac80211/main.c:1427
 idr_for_each+0x17c/0x248 lib/idr.c:208
 ieee80211_free_hw+0xc4/0x398 net/mac80211/main.c:1445
 mac80211_hwsim_del_radio+0x260/0x3a8 drivers/net/wireless/mac80211_hwsim.c:3476
 hwsim_exit_net+0x49c/0x558 drivers/net/wireless/mac80211_hwsim.c:4243
 ops_exit_list net/core/net_namespace.c:172 [inline]
 cleanup_net+0x5c4/0xa98 net/core/net_namespace.c:635
 process_one_work+0x79c/0x1140 kernel/workqueue.c:2310
 worker_thread+0x8f4/0x101c kernel/workqueue.c:2457
 kthread+0x374/0x454 kernel/kthread.c:334
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:870
irq event stamp: 569398
hardirqs last  enabled at (569397): [<ffff8000082f7640>] __up_console_sem+0xb4/0x100 kernel/printk/printk.c:257
hardirqs last disabled at (569398): [<ffff80001119f244>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:396
softirqs last  enabled at (566986): [<ffff80000f71cacc>] spin_unlock_bh include/linux/spinlock.h:408 [inline]
softirqs last  enabled at (566986): [<ffff80000f71cacc>] netif_addr_unlock_bh include/linux/netdevice.h:4625 [inline]
softirqs last  enabled at (566986): [<ffff80000f71cacc>] dev_mc_flush+0x1b0/0x1f4 net/core/dev_addr_lists.c:1001
softirqs last disabled at (566984): [<ffff80000f71d0dc>] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:18
---[ end trace a54d32d60a7d197a ]---
device hsr_slave_0 left promiscuous mode
device 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
device bridge_slave_1 left promiscuous mode
bridge0: port 2(bridge_slave_1) entered disabled state
device bridge_slave_0 left promiscuous mode
bridge0: port 1(bridge_slave_0) entered disabled state
device veth1_macvtap left promiscuous mode
device veth0_macvtap left promiscuous mode
device veth1_vlan left promiscuous mode
device 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