Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.244' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 37.232330] INFO: trying to register non-static key. [ 37.237491] The code is fine but needs lockdep annotation, or maybe [ 37.244465] you didn't initialize this object before use? [ 37.251810] turning off the locking correctness validator. [ 37.257441] CPU: 1 PID: 8102 Comm: syz-executor971 Not tainted 4.19.192-syzkaller #0 [ 37.265394] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.275191] Call Trace: [ 37.277800] dump_stack+0x1fc/0x2ef [ 37.281524] register_lock_class+0xe82/0x11c0 [ 37.286021] ? __read_once_size_nocheck.constprop.0+0x10/0x10 [ 37.291904] ? deref_stack_reg+0x1d0/0x1d0 [ 37.296237] ? static_obj+0x50/0x50 [ 37.299856] ? is_bpf_text_address+0xd5/0x1b0 [ 37.304345] __lock_acquire+0x17d/0x3ff0 [ 37.308740] ? __lock_acquire+0x6de/0x3ff0 [ 37.313091] ? __lock_acquire+0x6de/0x3ff0 [ 37.317375] ? mark_held_locks+0xf0/0xf0 [ 37.321457] ? mark_held_locks+0xf0/0xf0 [ 37.325524] ? get_reg+0x1f0/0x1f0 [ 37.329054] ? unwind_next_frame+0xeee/0x1400 [ 37.333549] ? mark_held_locks+0xf0/0xf0 [ 37.337596] lock_acquire+0x170/0x3c0 [ 37.341411] ? ieee802154_del_device+0x3f/0x70 [ 37.345996] ? ieee802154_del_device+0x3f/0x70 [ 37.350583] __mutex_lock+0xd7/0x1200 [ 37.354390] ? ieee802154_del_device+0x3f/0x70 [ 37.358971] ? __mutex_lock+0x365/0x1200 [ 37.363033] ? ieee802154_del_device+0x3f/0x70 [ 37.367796] ? mutex_trylock+0x1a0/0x1a0 [ 37.371863] ? unwind_next_frame+0xeee/0x1400 [ 37.376521] ? nl802154_pre_doit+0x606/0xcd0 [ 37.380926] ? mutex_trylock+0x1a0/0x1a0 [ 37.385121] ? __sanitizer_cov_trace_switch+0x4b/0x80 [ 37.390313] ? validate_nla+0x270/0x820 [ 37.394303] ieee802154_del_device+0x3f/0x70 [ 37.398723] nl802154_del_llsec_dev+0x23d/0x320 [ 37.403661] ? nl802154_del_llsec_key+0x330/0x330 [ 37.408504] ? nla_parse+0x1b2/0x290 [ 37.412434] ? nl802154_dump_wpan_phy_done+0x40/0x40 [ 37.417539] genl_family_rcv_msg+0x642/0xc40 [ 37.421967] ? genl_rcv+0x40/0x40 [ 37.425583] ? genl_rcv_msg+0x12f/0x160 [ 37.429677] ? mutex_trylock+0x1a0/0x1a0 [ 37.433729] ? __radix_tree_lookup+0x216/0x370 [ 37.438327] genl_rcv_msg+0xbf/0x160 [ 37.442168] netlink_rcv_skb+0x160/0x440 [ 37.446345] ? genl_family_rcv_msg+0xc40/0xc40 [ 37.451069] ? netlink_ack+0xae0/0xae0 [ 37.455280] ? genl_rcv+0x15/0x40 [ 37.458732] genl_rcv+0x24/0x40 [ 37.462021] netlink_unicast+0x4d5/0x690 [ 37.466253] ? netlink_sendskb+0x110/0x110 [ 37.470482] ? _copy_from_iter_full+0x229/0x7c0 [ 37.475196] ? __phys_addr_symbol+0x2c/0x70 [ 37.479522] ? __check_object_size+0x17b/0x3e0 [ 37.484162] netlink_sendmsg+0x6bb/0xc40 [ 37.488345] ? aa_af_perm+0x230/0x230 [ 37.492267] ? nlmsg_notify+0x1a0/0x1a0 [ 37.496353] ? kernel_recvmsg+0x220/0x220 [ 37.500687] ? nlmsg_notify+0x1a0/0x1a0 [ 37.504656] sock_sendmsg+0xc3/0x120 [ 37.508382] ___sys_sendmsg+0x7bb/0x8e0 [ 37.512352] ? copy_msghdr_from_user+0x440/0x440 [ 37.517232] ? apparmor_file_receive+0x160/0x160 [ 37.522268] ? __lockdep_init_map+0x100/0x5a0 [ 37.526882] ? check_preemption_disabled+0x41/0x280 [ 37.532037] ? mark_held_locks+0xf0/0xf0 [ 37.536102] ? percpu_counter_add_batch+0x126/0x180 [ 37.541122] ? alloc_empty_file+0xd7/0x170 [ 37.545428] ? errseq_sample+0x56/0x70 [ 37.549372] ? alloc_file+0x326/0x4d0 [ 37.553439] ? __fd_install+0x1b4/0x610 [ 37.557574] ? __fdget+0x1a0/0x230 [ 37.561313] __x64_sys_sendmsg+0x132/0x220 [ 37.565537] ? __sys_sendmsg+0x1b0/0x1b0 [ 37.569605] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 37.575049] ? trace_hardirqs_off_caller+0x6e/0x210 [ 37.580056] ? do_syscall_64+0x21/0x620 [ 37.584199] do_syscall_64+0xf9/0x620 [ 37.588182] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 37.593783] RIP: 0033:0x43fcb9 [ 37.596979] 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 [ 37.616006] RSP: 002b:00007ffd1f965348 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 37.623782] RAX: ffffffffffffffda RBX: 00000000004004a0 RCX: 000000000043fcb9 [ 37.631586] RDX: 0000000