tipc: Disabling bearer <eth:team0>
tipc: Left network mode
------------[ cut here ]------------
Have pending ack frames!
WARNING: net/mac80211/main.c:1749 at ieee80211_free_ack_frame+0x14/0x30 net/mac80211/main.c:1749, CPU#2: kworker/u32:4/5852
Modules linked in:
CPU: 2 UID: 0 PID: 5852 Comm: kworker/u32:4 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
Workqueue: netns cleanup_net
RIP: 0010:ieee80211_free_ack_frame+0x14/0x30 net/mac80211/main.c:1749
Code: ff ff 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 53 48 89 f3 e8 c3 17 e6 f6 48 8d 3d fc bc 0f 06 <67> 48 0f b9 3a ba 02 00 00 00 48 89 de 31 ff e8 c8 b4 61 fe 31 c0
RSP: 0018:ffffc90003b4f860 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff88803dd72000 RCX: ffffffff8bae6933
RDX: ffff88802f352540 RSI: ffffffff8b23b87d RDI: ffffffff91337580
RBP: ffff888056806c30 R08: 0000000000000007 R09: 000000007fffffff
R10: 0000000000000001 R11: 000000000000758b R12: dffffc0000000000
R13: ffffffff8b23b870 R14: 0000000080000000 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880d5fec000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055b302a9f7f0 CR3: 000000000e992000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 idr_for_each+0x143/0x270 lib/idr.c:210
 ieee80211_free_hw+0x59/0x1d0 net/mac80211/main.c:1761
 mac80211_hwsim_del_radio drivers/net/wireless/virtual/mac80211_hwsim_main.c:6218 [inline]
 hwsim_exit_net+0x8df/0x14f0 drivers/net/wireless/virtual/mac80211_hwsim_main.c:7196
 ops_exit_list net/core/net_namespace.c:199 [inline]
 ops_undo_list+0x2ee/0xab0 net/core/net_namespace.c:252
 cleanup_net+0x499/0x920 net/core/net_namespace.c:702
 process_one_work+0xa23/0x1940 kernel/workqueue.c:3322
 process_scheduled_works kernel/workqueue.c:3405 [inline]
 worker_thread+0x5ef/0xe50 kernel/workqueue.c:3486
 kthread+0x370/0x450 kernel/kthread.c:436
 ret_from_fork+0x72b/0xd50 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
----------------
Code disassembly (best guess), 2 bytes skipped:
   0:	0f 1f 40 00          	nopl   0x0(%rax)
   4:	90                   	nop
   5:	90                   	nop
   6:	90                   	nop
   7:	90                   	nop
   8:	90                   	nop
   9:	90                   	nop
   a:	90                   	nop
   b:	90                   	nop
   c:	90                   	nop
   d:	90                   	nop
   e:	90                   	nop
   f:	90                   	nop
  10:	90                   	nop
  11:	90                   	nop
  12:	90                   	nop
  13:	90                   	nop
  14:	f3 0f 1e fa          	endbr64
  18:	53                   	push   %rbx
  19:	48 89 f3             	mov    %rsi,%rbx
  1c:	e8 c3 17 e6 f6       	call   0xf6e617e4
  21:	48 8d 3d fc bc 0f 06 	lea    0x60fbcfc(%rip),%rdi        # 0x60fbd24
* 28:	67 48 0f b9 3a       	ud1    (%edx),%rdi <-- trapping instruction
  2d:	ba 02 00 00 00       	mov    $0x2,%edx
  32:	48 89 de             	mov    %rbx,%rsi
  35:	31 ff                	xor    %edi,%edi
  37:	e8 c8 b4 61 fe       	call   0xfe61b504
  3c:	31 c0                	xor    %eax,%eax