[ OK ] Started Getty on tty4. [ OK ] Started Getty on tty3. [ OK ] Started Getty on tty1. [ OK ] Started Serial Getty on ttyS0. [ OK ] Started Getty on tty2. [ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.233' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 34.944417] INFO: trying to register non-static key. [ 34.949561] the code is fine but needs lockdep annotation. [ 34.955171] turning off the locking correctness validator. [ 34.960781] CPU: 0 PID: 8091 Comm: syz-executor694 Not tainted 4.19.188-syzkaller #0 [ 34.968641] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.977979] Call Trace: [ 34.980562] dump_stack+0x1fc/0x2ef [ 34.984178] register_lock_class+0xe76/0x11c0 [ 34.988748] ? __read_once_size_nocheck.constprop.0+0x10/0x10 [ 34.994640] ? deref_stack_reg+0x1d0/0x1d0 [ 34.998859] ? static_obj+0x50/0x50 [ 35.002471] ? is_bpf_text_address+0xd5/0x1b0 [ 35.006952] __lock_acquire+0x17d/0x3ff0 [ 35.010997] ? __lock_acquire+0x6de/0x3ff0 [ 35.015214] ? __lock_acquire+0x6de/0x3ff0 [ 35.019449] ? mark_held_locks+0xf0/0xf0 [ 35.023492] ? mark_held_locks+0xf0/0xf0 [ 35.027538] ? get_reg+0x1f0/0x1f0 [ 35.031069] ? unwind_next_frame+0xeee/0x1400 [ 35.035555] ? mark_held_locks+0xf0/0xf0 [ 35.039601] lock_acquire+0x170/0x3c0 [ 35.043402] ? ieee802154_del_device+0x3f/0x70 [ 35.047973] ? ieee802154_del_device+0x3f/0x70 [ 35.052538] __mutex_lock+0xd7/0x1260 [ 35.056322] ? ieee802154_del_device+0x3f/0x70 [ 35.060884] ? __mutex_lock+0x3a8/0x1260 [ 35.064928] ? ieee802154_del_device+0x3f/0x70 [ 35.069494] ? __mutex_add_waiter+0x160/0x160 [ 35.073974] ? unwind_next_frame+0xeee/0x1400 [ 35.078454] ? nl802154_pre_doit+0x606/0xcd0 [ 35.082844] ? __mutex_add_waiter+0x160/0x160 [ 35.087326] ? __sanitizer_cov_trace_switch+0x4b/0x80 [ 35.092499] ? validate_nla+0x270/0x820 [ 35.096458] ieee802154_del_device+0x3f/0x70 [ 35.100853] nl802154_del_llsec_dev+0x23d/0x320 [ 35.105527] ? nl802154_del_llsec_key+0x330/0x330 [ 35.110360] ? nla_parse+0x1b2/0x290 [ 35.114065] ? nl802154_dump_wpan_phy_done+0x40/0x40 [ 35.119154] genl_family_rcv_msg+0x642/0xc40 [ 35.123550] ? genl_rcv+0x40/0x40 [ 35.126986] ? genl_rcv_msg+0x12f/0x160 [ 35.130959] ? __mutex_add_waiter+0x160/0x160 [ 35.135458] ? __radix_tree_lookup+0x216/0x370 [ 35.140024] genl_rcv_msg+0xbf/0x160 [ 35.143723] netlink_rcv_skb+0x160/0x440 [ 35.147767] ? genl_family_rcv_msg+0xc40/0xc40 [ 35.152331] ? netlink_ack+0xae0/0xae0 [ 35.156202] ? genl_rcv+0x15/0x40 [ 35.159656] genl_rcv+0x24/0x40 [ 35.162936] netlink_unicast+0x4d5/0x690 [ 35.166982] ? netlink_sendskb+0x110/0x110 [ 35.171203] ? _copy_from_iter_full+0x229/0x7c0 [ 35.175865] ? __phys_addr_symbol+0x2c/0x70 [ 35.180172] ? __check_object_size+0x17b/0x3e0 [ 35.184736] netlink_sendmsg+0x6bb/0xc40 [ 35.188803] ? aa_af_perm+0x230/0x230 [ 35.192588] ? nlmsg_notify+0x1a0/0x1a0 [ 35.196549] ? kernel_recvmsg+0x220/0x220 [ 35.200679] ? nlmsg_notify+0x1a0/0x1a0 [ 35.204653] sock_sendmsg+0xc3/0x120 [ 35.208357] ___sys_sendmsg+0x7bb/0x8e0 [ 35.212339] ? copy_msghdr_from_user+0x440/0x440 [ 35.217105] ? apparmor_file_receive+0x160/0x160 [ 35.221880] ? __lockdep_init_map+0x100/0x5a0 [ 35.226391] ? check_preemption_disabled+0x41/0x280 [ 35.231398] ? mark_held_locks+0xf0/0xf0 [ 35.235448] ? percpu_counter_add_batch+0x126/0x180 [ 35.240451] ? alloc_empty_file+0xd7/0x170 [ 35.244671] ? errseq_sample+0x56/0x70 [ 35.248546] ? alloc_file+0x326/0x4d0 [ 35.252330] ? __fd_install+0x1b4/0x610 [ 35.256287] ? __fdget+0x1a0/0x230 [ 35.259813] __x64_sys_sendmsg+0x132/0x220 [ 35.264046] ? __sys_sendmsg+0x1b0/0x1b0 [ 35.268097] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 35.273466] ? trace_hardirqs_off_caller+0x6e/0x210 [ 35.278467] ? do_syscall_64+0x21/0x620 [ 35.282442] do_syscall_64+0xf9/0x620 [ 35.286229] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 35.291402] RIP: 0033:0x43fcb9 [ 35.294583] Code: 28 c3 e8 5a 14 00 00 66 2e 0f 1f 84 00 00 00 00 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 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 35.313465] RSP: 002b:00007fffb8d43cf8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 35.321156] RAX: ffffffffffffffda RBX: 00000000004004a0 RCX: 000000000043fcb9 [ 35.328410] RDX: 0000000004000000 RSI: 0000000020000800 RDI: 0000000000000006 [ 35.335659] RBP: 0000000000403720 R08: 0000000000000004 R09: 00000000004004a0 [ 35.342912] R10: 000000000000000c R11