------------[ cut here ]------------
Have pending ack frames!
WARNING: CPU: 1 PID: 5408 at net/mac80211/main.c:1510 ieee80211_free_ack_frame+0x51/0x60 net/mac80211/main.c:1510
Modules linked in:
CPU: 1 PID: 5408 Comm: kworker/u4:7 Not tainted 6.4.0-rc4-syzkaller-00793-g4ec732951702 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023
Workqueue: netns cleanup_net
RIP: 0010:ieee80211_free_ack_frame+0x51/0x60 net/mac80211/main.c:1510
Code: 48 89 ef be 02 00 00 00 e8 6c 7a 85 fe 31 c0 5b 5d c3 e8 32 3d 00 f8 48 c7 c7 a0 f0 7e 8b c6 05 d8 e8 e0 04 01 e8 ff f8 c7 f7 <0f> 0b eb cd 66 66 2e 0f 1f 84 00 00 00 00 00 f3 0f 1e fa 41 57 41
RSP: 0018:ffffc900068379e0 EFLAGS: 00010282
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: ffff888044be9dc0 RSI: ffffffff814c03a7 RDI: 0000000000000001
RBP: ffff88807d8e1500 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000
R13: ffffffff898408d0 R14: 0000000000000000 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000561ec8a86a18 CR3: 0000000052f11000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 idr_for_each+0x117/0x230 lib/idr.c:208
 ieee80211_free_hw+0xa1/0x2f0 net/mac80211/main.c:1528
 mac80211_hwsim_del_radio drivers/net/wireless/virtual/mac80211_hwsim.c:5403 [inline]
 hwsim_exit_net+0x463/0x840 drivers/net/wireless/virtual/mac80211_hwsim.c:6276
 ops_exit_list+0xb0/0x170 net/core/net_namespace.c:170
 cleanup_net+0x4ee/0xb10 net/core/net_namespace.c:614
 process_one_work+0x99a/0x15e0 kernel/workqueue.c:2405
 worker_thread+0x67d/0x10c0 kernel/workqueue.c:2552
 kthread+0x344/0x440 kernel/kthread.c:379
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
 </TASK>