------------[ cut here ]------------
WARNING: CPU: 0 PID: 4437 at net/mac80211/iface.c:532 ieee80211_do_stop+0x1b14/0x2020 net/mac80211/iface.c:532
Modules linked in:
CPU: 0 PID: 4437 Comm: kworker/u4:11 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
Workqueue: netns cleanup_net
RIP: 0010:ieee80211_do_stop+0x1b14/0x2020 net/mac80211/iface.c:532
Code: f7 49 81 c4 98 06 00 00 4c 89 e0 48 c1 e8 03 42 0f b6 04 28 84 c0 0f 85 d2 04 00 00 41 ff 0c 24 e9 f9 f5 ff ff e8 7c 3f d5 f7 <0f> 0b e9 11 e9 ff ff e8 70 3f d5 f7 48 c7 c7 00 fd a6 8b 89 de e8
RSP: 0018:ffffc900048af3e0 EFLAGS: 00010293
RAX: ffffffff89acf364 RBX: 0000000000000001 RCX: ffff888025488000
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc900048af5c8 R08: ffffc900048af287 R09: 1ffff92000915e50
R10: dffffc0000000000 R11: fffff52000915e51 R12: ffffc900048af530
R13: dffffc0000000000 R14: 0000000000000001 R15: ffff8880797e2760
FS:  0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f1b86d5da08 CR3: 000000007c3d6000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
 <TASK>
 ieee80211_stop+0x41f/0x490 net/mac80211/iface.c:815
 __dev_close_many+0x1d1/0x2b0 net/core/dev.c:1585
 dev_close_many+0x21c/0x400 net/core/dev.c:1610
 dev_close+0x154/0x210 net/core/dev.c:1636
 cfg80211_shutdown_all_interfaces+0xab/0x1c0 net/wireless/core.c:275
 ieee80211_remove_interfaces+0x192/0x700 net/mac80211/iface.c:2378
 ieee80211_unregister_hw+0x59/0x290 net/mac80211/main.c:1484
 mac80211_hwsim_del_radio+0x285/0x480 drivers/net/wireless/mac80211_hwsim.c:4688
 hwsim_exit_net+0x589/0x650 drivers/net/wireless/mac80211_hwsim.c:5475
 ops_exit_list net/core/net_namespace.c:172 [inline]
 cleanup_net+0x703/0xba0 net/core/net_namespace.c:640
 process_one_work+0x8ab/0x1160 kernel/workqueue.c:2292
 worker_thread+0xaf5/0x12a0 kernel/workqueue.c:2439
 kthread+0x29d/0x330 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </TASK>