------------[ cut here ]------------
Have pending ack frames!
WARNING: CPU: 0 PID: 26749 at net/mac80211/main.c:1527 ieee80211_free_ack_frame+0x54/0x60 net/mac80211/main.c:1527
Modules linked in:
CPU: 0 PID: 26749 Comm: kworker/u4:19 Not tainted 6.7.0-syzkaller-04689-gea937f772083 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
Workqueue: netns cleanup_net
RIP: 0010:ieee80211_free_ack_frame+0x54/0x60 net/mac80211/main.c:1527
Code: df be 02 00 00 00 e8 bb 27 7a fe 31 c0 5b 5d c3 e8 41 67 92 f7 c6 05 70 9a 2e 05 01 90 48 c7 c7 80 67 0c 8c e8 3d 5a 58 f7 90 <0f> 0b 90 90 eb c9 66 0f 1f 44 00 00 f3 0f 1e fa 41 57 41 56 41 55
RSP: 0018:ffffc90004e9fa00 EFLAGS: 00010282
RAX: 0000000000000000 RBX: ffff888024049140 RCX: ffffffff814e08e9
RDX: ffff88804789d940 RSI: ffffffff814e08f6 RDI: 0000000000000001
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 00000000000a1b40 R12: dffffc0000000000
R13: ffffffff89f5acc0 R14: 0000000080000000 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f7ef2f3a3b0 CR3: 00000000987e6000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 idr_for_each+0x141/0x270 lib/idr.c:208
 ieee80211_free_hw+0xa6/0x2f0 net/mac80211/main.c:1544
 mac80211_hwsim_del_radio drivers/net/wireless/virtual/mac80211_hwsim.c:5438 [inline]
 hwsim_exit_net+0x3fe/0x7d0 drivers/net/wireless/virtual/mac80211_hwsim.c:6312
 ops_exit_list+0xb0/0x170 net/core/net_namespace.c:170
 cleanup_net+0x505/0xb20 net/core/net_namespace.c:618
 process_one_work+0x886/0x15d0 kernel/workqueue.c:2633
 process_scheduled_works kernel/workqueue.c:2706 [inline]
 worker_thread+0x8b9/0x1290 kernel/workqueue.c:2787
 kthread+0x2c6/0x3a0 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:242
 </TASK>