[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... [ OK ] Started Update UTMP about System Runlevel Changes. [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.10.19' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 29.960468] INFO: trying to register non-static key. [ 29.965606] the code is fine but needs lockdep annotation. [ 29.971218] turning off the locking correctness validator. [ 29.976894] CPU: 1 PID: 7945 Comm: syz-executor029 Not tainted 4.14.226-syzkaller #0 [ 29.984936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.994299] Call Trace: [ 29.996893] dump_stack+0x1b2/0x281 [ 30.000518] register_lock_class+0x32b/0x1320 [ 30.005000] ? check_usage+0x187/0x620 [ 30.009052] ? entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 30.014429] ? static_obj+0x50/0x50 [ 30.018058] ? is_bpf_text_address+0xb8/0x150 [ 30.022636] __lock_acquire+0x167/0x3f20 [ 30.026721] ? save_trace+0xd6/0x290 [ 30.030424] ? trace_hardirqs_on+0x10/0x10 [ 30.034642] ? mark_lock+0x64e/0x1050 [ 30.038429] ? check_usage_forwards+0x2d0/0x2d0 [ 30.043103] ? __lock_acquire+0x2190/0x3f20 [ 30.047419] lock_acquire+0x170/0x3f0 [ 30.051231] ? ieee802154_get_llsec_params+0x3f/0x70 [ 30.056500] ? ieee802154_get_llsec_params+0x3f/0x70 [ 30.061594] __mutex_lock+0xc4/0x1310 [ 30.065385] ? ieee802154_get_llsec_params+0x3f/0x70 [ 30.070576] ? __nla_reserve+0x9a/0xc0 [ 30.074543] ? ieee802154_get_llsec_params+0x3f/0x70 [ 30.079636] ? __ww_mutex_wakeup_for_backoff+0x210/0x210 [ 30.085091] ? ieee802154_llsec_send_key_id+0x14c/0x650 [ 30.090442] ? nl802154_put_flags+0x1b0/0x1b0 [ 30.094931] ? __nla_reserve+0x9a/0xc0 [ 30.098822] ? __nla_put+0x23/0x40 [ 30.102362] ieee802154_get_llsec_params+0x3f/0x70 [ 30.107293] nl802154_get_llsec_params+0xb8/0x310 [ 30.112310] ? ieee802154_llsec_send_key_id+0x650/0x650 [ 30.117676] ? skb_put+0x124/0x170 [ 30.121231] ? memset+0x20/0x40 [ 30.124542] ? __nla_reserve+0x9a/0xc0 [ 30.128427] ? memcpy+0x35/0x50 [ 30.131708] nl802154_send_iface+0x73b/0x8d0 [ 30.136110] ? nl802154_wpan_phy_netns+0x230/0x230 [ 30.141046] ? genl_lock_dumpit+0x3c/0x90 [ 30.145192] ? rcu_lockdep_current_cpu_online+0xed/0x140 [ 30.150739] nl802154_dump_interface+0x278/0x470 [ 30.155511] genl_lock_dumpit+0x60/0x90 [ 30.159485] netlink_dump+0x39c/0xad0 [ 30.163291] __netlink_dump_start+0x4e2/0x740 [ 30.167783] ? genl_lock_dumpit+0x90/0x90 [ 30.171947] genl_family_rcv_msg+0x95c/0xb20 [ 30.176369] ? __lock_acquire+0x5fc/0x3f20 [ 30.180610] ? genl_rcv+0x40/0x40 [ 30.184073] ? genl_lock_dumpit+0x90/0x90 [ 30.188208] ? genl_lock_done+0xc0/0xc0 [ 30.192183] ? genl_unlock+0x20/0x20 [ 30.195901] ? trace_hardirqs_on+0x10/0x10 [ 30.200131] ? sock_sendmsg+0xb5/0x100 [ 30.204011] ? ___sys_sendmsg+0x6c8/0x800 [ 30.208150] ? __sys_sendmsg+0xa3/0x120 [ 30.212127] ? SyS_sendmsg+0x27/0x40 [ 30.215836] ? do_syscall_64+0x1d5/0x640 [ 30.219975] ? entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 30.225334] ? __radix_tree_lookup+0x1b5/0x2e0 [ 30.230278] genl_rcv_msg+0xaf/0x140 [ 30.233982] netlink_rcv_skb+0x125/0x390 [ 30.238044] ? genl_family_rcv_msg+0xb20/0xb20 [ 30.242796] ? netlink_ack+0x9a0/0x9a0 [ 30.246825] ? lock_acquire+0x170/0x3f0 [ 30.250811] genl_rcv+0x24/0x40 [ 30.254085] netlink_unicast+0x437/0x610 [ 30.258158] ? netlink_sendskb+0xd0/0xd0 [ 30.262300] ? __check_object_size+0x179/0x230 [ 30.266976] netlink_sendmsg+0x62e/0xb80 [ 30.271040] ? nlmsg_notify+0x170/0x170 [ 30.275000] ? kernel_recvmsg+0x210/0x210 [ 30.279135] ? security_socket_sendmsg+0x83/0xb0 [ 30.283898] ? nlmsg_notify+0x170/0x170 [ 30.287860] sock_sendmsg+0xb5/0x100 [ 30.291562] ___sys_sendmsg+0x6c8/0x800 [ 30.295530] ? copy_msghdr_from_user+0x3b0/0x3b0 [ 30.300284] ? __lock_acquire+0x5fc/0x3f20 [ 30.304517] ? __dentry_kill+0x3f7/0x550 [ 30.308572] ? trace_hardirqs_on+0x10/0x10 [ 30.312922] ? rcu_lockdep_current_cpu_online+0xed/0x140 [ 30.318381] ? dentry_free+0xc6/0x120 [ 30.322186] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 30.327655] ? kmem_cache_free+0x23a/0x2b0 [ 30.332144] ? mntput_no_expire+0xc7/0x910 [ 30.336376] ? lock_acquire+0x170/0x3f0 [ 30.340330] ? __fdget+0x167/0x1f0 [ 30.343854] ? sockfd_lookup_light+0xb2/0x160 [ 30.348624] __sys_sendmsg+0xa3/0x120 [ 30.352764] ? SyS_shutdown+0x160/0x160 [ 30.356721] SyS_sendmsg+0x27/0x40 [ 30.360258] ? __sys_sendmsg+0x120/0x120 [ 30.364476] do_syscall_64+0x1d5/0x640 [ 30.368365] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 30.373631] RIP: 0033:0x43fb69 [ 30.376801] RSP: 002b:00007ffc7969b788 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 30.384556] RAX: ffffffffffffffda RBX: 00000000004004a0 RCX: 000000000043fb69 [ 30.391859] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000004 [ 30.399582] RBP: 00000000004035d0 R08: 0000000000000000 R09: 00000000004004a0 [ 30.407559] R10: 0000000000000000 R11: 0000000000000