IPVS: stopping master sync thread 8863 ...
bond0: (slave wlan1): Releasing backup interface
------------[ cut here ]------------
WARNING: CPU: 0 PID: 3549 at net/mac80211/chan.c:2022 ieee80211_link_release_channel+0x154/0x180 net/mac80211/chan.c:2022
Modules linked in:
CPU: 0 PID: 3549 Comm: kworker/u4:14 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
Workqueue: netns cleanup_net
RIP: 0010:ieee80211_link_release_channel+0x154/0x180 net/mac80211/chan.c:2022
Code: 7c 2d 00 00 74 08 48 89 df e8 78 1d d6 f7 bf 60 1e 00 00 48 03 3b 5b 41 5c 41 5d 41 5e 41 5f 5d e9 21 c4 85 00 e8 2c e6 7d f7 <0f> 0b eb c5 48 c7 c1 6c 4e 8b 8e 80 e1 07 80 c1 03 38 c1 0f 8c 51
RSP: 0018:ffffc9000d1a7548 EFLAGS: 00010293
RAX: ffffffff8a093bd4 RBX: ffff88805c6fd598 RCX: ffff88802e525a00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffffff8e8b19af R09: 1ffffffff1d16335
R10: dffffc0000000000 R11: fffffbfff1d16336 R12: ffff88805c6fec08
R13: 1ffff1100b8dfab3 R14: ffff88805c6fe3c0 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c2d789b CR3: 0000000061a31000 CR4: 00000000003506f0
Call Trace:
 <TASK>
 unregister_netdevice_many_notify+0x133d/0x1900 net/core/dev.c:11144
 unregister_netdevice_many net/core/dev.c:11180 [inline]
 unregister_netdevice_queue+0x32c/0x370 net/core/dev.c:11060
 unregister_netdevice include/linux/netdevice.h:3137 [inline]
 _cfg80211_unregister_wdev+0x16b/0x580 net/wireless/core.c:1216
 ieee80211_remove_interfaces+0x49e/0x690 net/mac80211/iface.c:2363
 ieee80211_unregister_hw+0x5d/0x2a0 net/mac80211/main.c:1517
 mac80211_hwsim_del_radio+0x289/0x480 drivers/net/wireless/virtual/mac80211_hwsim.c:5412
 hwsim_exit_net+0x58d/0x650 drivers/net/wireless/virtual/mac80211_hwsim.c:6290
 ops_exit_list net/core/net_namespace.c:173 [inline]
 cleanup_net+0x70a/0xbb0 net/core/net_namespace.c:652
 process_one_work kernel/workqueue.c:2653 [inline]
 process_scheduled_works+0xa5d/0x15d0 kernel/workqueue.c:2730
 worker_thread+0xa55/0xfc0 kernel/workqueue.c:2811
 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>