------------[ cut here ]------------
Have pending ack frames!
WARNING: CPU: 0 PID: 43 at net/mac80211/main.c:1511 ieee80211_free_ack_frame+0x52/0x60 net/mac80211/main.c:1511
Modules linked in:
CPU: 0 PID: 43 Comm: kworker/u4:3 Not tainted 6.5.0-syzkaller-12145-g4a0fc73da97e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
Workqueue: netns cleanup_net
RIP: 0010:ieee80211_free_ack_frame+0x52/0x60 net/mac80211/main.c:1511
Code: 48 89 df be 02 00 00 00 e8 fb 06 7d fe 31 c0 5b 5d c3 e8 71 ac d8 f7 48 c7 c7 40 87 c4 8b c6 05 c5 41 09 05 01 e8 ae ca 9e f7 <0f> 0b eb cd 66 2e 0f 1f 84 00 00 00 00 00 f3 0f 1e fa 41 57 41 56
RSP: 0000:ffffc90000b3fa08 EFLAGS: 00010282
RAX: 0000000000000000 RBX: ffff8880291b7500 RCX: 0000000000000000
RDX: ffff888013ea9dc0 RSI: ffffffff814dc3f6 RDI: 0000000000000001
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 00000000000b53f8 R12: dffffc0000000000
R13: ffffffff89aef750 R14: 0000000080000000 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c003ded000 CR3: 00000000253dd000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 idr_for_each+0x141/0x260 lib/idr.c:208
 ieee80211_free_hw+0xb2/0x2f0 net/mac80211/main.c:1529
 mac80211_hwsim_del_radio drivers/net/wireless/virtual/mac80211_hwsim.c:5411 [inline]
 hwsim_exit_net+0x3f9/0x7d0 drivers/net/wireless/virtual/mac80211_hwsim.c:6285
 ops_exit_list+0xb0/0x170 net/core/net_namespace.c:170
 cleanup_net+0x505/0xb20 net/core/net_namespace.c:614
 process_one_work+0x887/0x15d0 kernel/workqueue.c:2630
 process_scheduled_works kernel/workqueue.c:2703 [inline]
 worker_thread+0x8bb/0x1290 kernel/workqueue.c:2784
 kthread+0x33a/0x430 kernel/kthread.c:388
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304
 </TASK>