------------[ cut here ]------------
Have pending ack frames!
WARNING: CPU: 1 PID: 91 at net/mac80211/main.c:1428 ieee80211_free_ack_frame+0x4d/0x60 net/mac80211/main.c:1428
Modules linked in:
CPU: 1 PID: 91 Comm: kworker/u4:4 Not tainted 5.19.0-syzkaller-01583-g7d0d3fa7339e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022
Workqueue: netns cleanup_net
RIP: 0010:ieee80211_free_ack_frame+0x4d/0x60 net/mac80211/main.c:1428
Code: 48 89 ef be 01 00 00 00 e8 90 f9 8f fe 31 c0 5b 5d c3 e8 f6 6f bc f8 48 c7 c7 20 88 f3 8a c6 05 d1 0a e9 04 01 e8 eb 34 75 00 <0f> 0b eb cd 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 41 57 49
RSP: 0018:ffffc90001c8f9d0 EFLAGS: 00010282
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: ffff8880185da080 RSI: ffffffff816011b8 RDI: fffff52000391f2c
RBP: ffff8880268dde80 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000080000000 R11: 0000000000000001 R12: dffffc0000000000
R13: ffffffff88bd4430 R14: 0000000000000000 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005611afd0b000 CR3: 000000001c237000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 idr_for_each+0x113/0x220 lib/idr.c:208
 ieee80211_free_hw+0x9b/0x2b0 net/mac80211/main.c:1444
 mac80211_hwsim_del_radio drivers/net/wireless/mac80211_hwsim.c:3967 [inline]
 hwsim_exit_net+0x55f/0xca0 drivers/net/wireless/mac80211_hwsim.c:4731
 ops_exit_list+0xb0/0x170 net/core/net_namespace.c:162
 cleanup_net+0x4ea/0xb00 net/core/net_namespace.c:594
 process_one_work+0x996/0x1610 kernel/workqueue.c:2289
 worker_thread+0x665/0x1080 kernel/workqueue.c:2436
 kthread+0x2e9/0x3a0 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>