------------[ cut here ]------------
WARNING: CPU: 1 PID: 5081 at net/mac80211/iface.c:530 ieee80211_do_stop+0x1ae9/0x2030 net/mac80211/iface.c:530
Modules linked in:
CPU: 1 PID: 5081 Comm: kworker/u4:10 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/07/2026
Workqueue: netns cleanup_net
RIP: 0010:ieee80211_do_stop+0x1ae9/0x2030 net/mac80211/iface.c:530
Code: f7 49 81 c5 d8 06 00 00 4c 89 e8 48 c1 e8 03 42 0f b6 04 20 84 c0 0f 85 fd 04 00 00 41 ff 4d 00 e9 ed f5 ff ff e8 47 b6 7b f7 <0f> 0b e9 af e8 ff ff e8 3b b6 7b f7 43 0f b6 04 27 84 c0 0f 85 12
RSP: 0018:ffffc900106af380 EFLAGS: 00010293
RAX: ffffffff8a0c2859 RBX: 0000000000000001 RCX: ffff888033d40000
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc900106af568 R08: ffffc900106af227 R09: 1ffff920020d5e44
R10: dffffc0000000000 R11: fffff520020d5e45 R12: dffffc0000000000
R13: ffffc900106af4d0 R14: 0000000000000001 R15: ffff88805d166910
FS:  0000000000000000(0000) GS:ffff8880b8d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f52b1455000 CR3: 000000007533d000 CR4: 00000000003506e0
Call Trace:
 <TASK>
 ieee80211_stop+0x423/0x490 net/mac80211/iface.c:815
 __dev_close_many+0x1d5/0x2b0 net/core/dev.c:1603
 dev_close_many+0x220/0x410 net/core/dev.c:1628
 dev_close+0x158/0x210 net/core/dev.c:1654
 cfg80211_shutdown_all_interfaces+0xaf/0x1c0 net/wireless/core.c:287
 ieee80211_remove_interfaces+0x114/0x690 net/mac80211/iface.c:2368
 ieee80211_unregister_hw+0x5d/0x2a0 net/mac80211/main.c:1522
 mac80211_hwsim_del_radio+0x289/0x480 drivers/net/wireless/virtual/mac80211_hwsim.c:5418
 hwsim_exit_net+0x58d/0x650 drivers/net/wireless/virtual/mac80211_hwsim.c:6300
 ops_exit_list net/core/net_namespace.c:173 [inline]
 cleanup_net+0x6f7/0xb00 net/core/net_namespace.c:656
 process_one_work kernel/workqueue.c:2657 [inline]
 process_scheduled_works+0xa60/0x1600 kernel/workqueue.c:2734
 worker_thread+0xa5e/0xfe0 kernel/workqueue.c:2815
 kthread+0x2fa/0x390 kernel/kthread.c:388
 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:152
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:293
 </TASK>