bond0 (unregistering): (slave bond_slave_0): Releasing backup interface
bond0 (unregistering): (slave bond_slave_1): Releasing backup interface
bond0 (unregistering): Released all slaves
tipc: Left network mode
------------[ cut here ]------------
Have pending ack frames!
WARNING: net/mac80211/main.c:1696 at ieee80211_free_ack_frame+0x4d/0x60 net/mac80211/main.c:1696, CPU#1: kworker/u8:15/17128
Modules linked in:
CPU: 1 UID: 0 PID: 17128 Comm: kworker/u8:15 Not tainted 6.16.0-next-20250731-syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
Workqueue: netns cleanup_net
RIP: 0010:ieee80211_free_ack_frame+0x4d/0x60 net/mac80211/main.c:1696
Code: 00 00 e8 96 08 74 fe 31 c0 5b c3 cc cc cc cc cc e8 78 1e d4 f6 c6 05 6c 72 e1 04 01 90 48 c7 c7 60 b6 cf 8c e8 54 b5 97 f6 90 <0f> 0b 90 90 eb c8 cc cc cc cc cc cc cc cc cc cc cc cc cc 90 90 90
RSP: 0018:ffffc9000c36f610 EFLAGS: 00010246
RAX: 45ee6d7d05311f00 RBX: ffff8880651b6000 RCX: ffff88805be8da00
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000002
RBP: ffffc9000c36f718 R08: ffff8880b8724253 R09: 1ffff110170e484a
R10: dffffc0000000000 R11: ffffed10170e484b R12: ffffc9000c36f680
R13: ffff888148fe31b0 R14: ffff888078172fa0 R15: 0000000000000001
FS:  0000000000000000(0000) GS:ffff88812590a000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fff1a34bf10 CR3: 00000000682a2000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000097 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 idr_for_each+0x1b5/0x290 lib/idr.c:208
 ieee80211_free_hw+0x44/0x3d0 net/mac80211/main.c:1708
 mac80211_hwsim_del_radio+0x2de/0x460 drivers/net/wireless/virtual/mac80211_hwsim.c:5677
 hwsim_exit_net+0x584/0x640 drivers/net/wireless/virtual/mac80211_hwsim.c:6554
 ops_exit_list net/core/net_namespace.c:198 [inline]
 ops_undo_list+0x497/0x990 net/core/net_namespace.c:251
 cleanup_net+0x4c5/0x800 net/core/net_namespace.c:682
 process_one_work kernel/workqueue.c:3236 [inline]
 process_scheduled_works+0xade/0x17b0 kernel/workqueue.c:3319
 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3400
 kthread+0x70e/0x8a0 kernel/kthread.c:463
 ret_from_fork+0x3fc/0x770 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>