Debian GNU/Linux 9 syzkaller ttyS0

Warning: Permanently added '10.128.0.178' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   67.059131][ T8518] 
[   67.061643][ T8518] =============================
[   67.067703][ T8518] WARNING: suspicious RCU usage
[   67.073100][ T8518] 5.10.0-syzkaller #0 Not tainted
[   67.078140][ T8518] -----------------------------
[   67.083554][ T8518] net/wireless/reg.c:144 suspicious rcu_dereference_check() usage!
[   67.091531][ T8518] 
[   67.091531][ T8518] other info that might help us debug this:
[   67.091531][ T8518] 
[   67.103424][ T8518] 
[   67.103424][ T8518] rcu_scheduler_active = 2, debug_locks = 1
[   67.111502][ T8518] 2 locks held by syz-executor685/8518:
[   67.117147][ T8518]  #0: ffffffff8c9bd070 (cb_lock){++++}-{3:3}, at: genl_rcv+0x15/0x40
[   67.126201][ T8518]  #1: ffffffff8c9bd128 (genl_mutex){+.+.}-{3:3}, at: genl_rcv_msg+0x3e0/0x580
[   67.135276][ T8518] 
[   67.135276][ T8518] stack backtrace:
[   67.141189][ T8518] CPU: 0 PID: 8518 Comm: syz-executor685 Not tainted 5.10.0-syzkaller #0
[   67.149592][ T8518] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   67.159806][ T8518] Call Trace:
[   67.163090][ T8518]  dump_stack+0x107/0x163
[   67.167463][ T8518]  get_wiphy_regdom+0xc3/0xd0
[   67.172131][ T8518]  wiphy_apply_custom_regulatory+0x234/0x360
[   67.178103][ T8518]  mac80211_hwsim_new_radio+0x1f45/0x4830
[   67.183823][ T8518]  ? hwsim_virtio_rx_work+0x350/0x350
[   67.189292][ T8518]  hwsim_new_radio_nl+0x9a6/0x10b0
[   67.194469][ T8518]  ? mac80211_hwsim_new_radio+0x4830/0x4830
[   67.200385][ T8518]  ? genl_family_rcv_msg_attrs_parse.constprop.0+0x1b7/0x280
[   67.207814][ T8518]  ? genl_family_rcv_msg_attrs_parse.constprop.0+0xaf/0x280
[   67.215099][ T8518]  genl_family_rcv_msg_doit+0x228/0x320
[   67.220647][ T8518]  ? genl_family_rcv_msg_attrs_parse.constprop.0+0x280/0x280
[   67.228020][ T8518]  ? ns_capable+0xde/0x100
[   67.232460][ T8518]  genl_rcv_msg+0x328/0x580
[   67.236972][ T8518]  ? genl_get_cmd+0x480/0x480
[   67.241636][ T8518]  ? mac80211_hwsim_new_radio+0x4830/0x4830
[   67.247613][ T8518]  ? lock_release+0x710/0x710
[   67.252392][ T8518]  netlink_rcv_skb+0x153/0x420
[   67.257164][ T8518]  ? genl_get_cmd+0x480/0x480
[   67.261861][ T8518]  ? netlink_ack+0xaa0/0xaa0
[   67.266446][ T8518]  genl_rcv+0x24/0x40
[   67.270414][ T8518]  netlink_unicast+0x533/0x7d0
[   67.275178][ T8518]  ? netlink_attachskb+0x870/0x870
[   67.280309][ T8518]  ? __phys_addr_symbol+0x2c/0x70
[   67.285317][ T8518]  ? __check_object_size+0x171/0x3f0
[   67.290613][ T8518]  netlink_sendmsg+0x856/0xd90
[   67.295377][ T8518]  ? netlink_unicast+0x7d0/0x7d0
[   67.300310][ T8518]  ? bpf_lsm_socket_sendmsg+0x5/0x10
[   67.305578][ T8518]  ? netlink_unicast+0x7d0/0x7d0
[   67.310503][ T8518]  sock_sendmsg+0xcf/0x120
[   67.314917][ T8518]  ____sys_sendmsg+0x6e8/0x810
[   67.319670][ T8518]  ? kernel_sendmsg+0x50/0x50
[   67.324328][ T8518]  ? do_recvmmsg+0x6c0/0x6c0
[   67.328906][ T8518]  ? find_held_lock+0x2d/0x110
[   67.333669][ T8518]  ___sys_sendmsg+0xf3/0x170
[   67.338252][ T8518]  ? sendmsg_copy_msghdr+0x160/0x160
[   67.343526][ T8518]  ? do_huge_pmd_anonymous_page+0x8f1/0x2390
[   67.349545][ T8518]  ? find_held_lock+0x2d/0x110
[   67.354331][ T8518]  ? __fget_light+0x215/0x280
[   67.359027][ T8518]  __sys_sendmsg+0xe5/0x1b0
[   67.363532][ T8518]  ? __sys_sendmsg_sock+0xb0/0xb0
[   67.368594][ T8518]  ? syscall_enter_from_user_mode+0x1d/0x50
[   67.374520][ T8518]  do_syscall_64+0x2d/0x70
[   67.378979][ T8518]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   67.384883][ T8518] RIP: 0033:0x440309
[   67.388786][ T8518] Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 7b 13 fc ff c3 66 2e 0f 1f 84 00 00 00 00
[   67.408843][ T8518] RSP: 002b:00007fff952fb718 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   67.417284][ T8518] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440309
[   67.425256][ T8518] RDX: 0000000000000000 RSI: 00000000200001c0 RDI: 0000000000000003
[   67.433326][ T8518] RBP: 00000000006ca018 R08: 0000000000000000 R09: 00000000004002c8
[   67.441299][ T8518] R10: 0000000000401ba0 R11: 0000000000000246 R12: 0000000000401b10
[   67.449278][ T8518] R13: 0000000000401ba0 R14: 0000000000000000 R15: 0000000000000000