netdevsim netdevsim4 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
netdevsim netdevsim4 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
netdevsim netdevsim4 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
------------[ cut here ]------------
Have pending ack frames!
WARNING: CPU: 1 PID: 2848 at net/mac80211/main.c:1511 ieee80211_free_ack_frame+0x52/0x60 net/mac80211/main.c:1511
Modules linked in:
CPU: 1 PID: 2848 Comm: kworker/u4:6 Not tainted 6.5.0-rc2-syzkaller-00214-g284779dbf4e9 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023
Workqueue: netns cleanup_net
RIP: 0010:ieee80211_free_ack_frame+0x52/0x60 net/mac80211/main.c:1511
Code: 48 89 df be 02 00 00 00 e8 eb 8a 7e fe 31 c0 5b 5d c3 e8 81 16 e3 f7 48 c7 c7 00 37 a2 8b c6 05 d8 58 f2 04 01 e8 1e e0 a9 f7 <0f> 0b eb cd 66 2e 0f 1f 84 00 00 00 00 00 f3 0f 1e fa 41 57 41 56
RSP: 0018:ffffc9000cbb7a00 EFLAGS: 00010282
RAX: 0000000000000000 RBX: ffff88803204c500 RCX: 0000000000000000
RDX: ffff888029c23b80 RSI: ffffffff814d3c06 RDI: 0000000000000001
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000
R13: ffffffff89a359f0 R14: 0000000080000000 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffecc9bce78 CR3: 000000002a44e000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 idr_for_each+0x141/0x260 lib/idr.c:208
 ieee80211_free_hw+0xb2/0x2f0 net/mac80211/main.c:1529
 mac80211_hwsim_del_radio drivers/net/wireless/virtual/mac80211_hwsim.c:5412 [inline]
 hwsim_exit_net+0x3f9/0x7d0 drivers/net/wireless/virtual/mac80211_hwsim.c:6285
 ops_exit_list+0xb0/0x170 net/core/net_namespace.c:170
 cleanup_net+0x505/0xb20 net/core/net_namespace.c:614
 process_one_work+0xaa2/0x16f0 kernel/workqueue.c:2597
 worker_thread+0x687/0x1110 kernel/workqueue.c:2748
 kthread+0x33a/0x430 kernel/kthread.c:389
 ret_from_fork+0x2c/0x70 arch/x86/kernel/process.c:145
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:296
RIP: 0000:0x0
Code: Unable to access opcode bytes at 0xffffffffffffffd6.
RSP: 0000:0000000000000000 EFLAGS: 00000000 ORIG_RAX: 0000000000000000
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 </TASK>