------------[ cut here ]------------
Have pending ack frames!
WARNING: CPU: 0 PID: 20260 at net/mac80211/main.c:1428 ieee80211_free_ack_frame+0x42/0x50 net/mac80211/main.c:1428
Modules linked in:
CPU: 0 PID: 20260 Comm: kworker/u4:13 Not tainted 5.19.0-rc6-syzkaller-00104-g72a8e05d4f66 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022
Workqueue: netns cleanup_net
RIP: 0010:ieee80211_free_ack_frame+0x42/0x50 net/mac80211/main.c:1428
Code: 89 df be 01 00 00 00 e8 8c 27 7c fe 31 c0 5b c3 e8 a3 04 d9 f7 c6 05 d0 88 41 04 01 48 c7 c7 e0 bf b7 8b 31 c0 e8 4e 91 a1 f7 <0f> 0b eb d1 66 2e 0f 1f 84 00 00 00 00 00 55 41 57 41 56 53 89 f5
RSP: 0018:ffffc90006437870 EFLAGS: 00010246
RAX: 1c53ac71bd2d8600 RBX: ffff888011f4d000 RCX: ffff888072c71d80
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: ffffc90006437980 R08: ffffffff816bde1d R09: ffffed1017344f14
R10: ffffed1017344f14 R11: 1ffff11017344f13 R12: ffffc900064378e0
R13: dffffc0000000000 R14: 1ffff92000c86f40 R15: ffff88803722fcb0
FS:  0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c008802350 CR3: 0000000072f6c000 CR4: 00000000003506e0
Call Trace:
 <TASK>
 idr_for_each+0x1f8/0x2e0 lib/idr.c:208
 ieee80211_free_hw+0xc1/0x450 net/mac80211/main.c:1444
 mac80211_hwsim_del_radio+0x321/0x4a0 drivers/net/wireless/mac80211_hwsim.c:3967
 hwsim_exit_net+0x5d3/0x680 drivers/net/wireless/mac80211_hwsim.c:4731
 ops_exit_list net/core/net_namespace.c:162 [inline]
 cleanup_net+0x758/0xc50 net/core/net_namespace.c:594
 process_one_work+0x81c/0xd10 kernel/workqueue.c:2289
 worker_thread+0xb14/0x1330 kernel/workqueue.c:2436
 kthread+0x266/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30
 </TASK>