[ OK ] Started Getty on tty4. [ OK ] Started Getty on tty3. [ 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... Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. [ OK ] Started Update UTMP about System Runlevel Changes. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.91' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 33.625409] netlink: 8 bytes leftover after parsing attributes in process `syz-executor374'. [ 33.634513] FAULT_INJECTION: forcing a failure. [ 33.634513] name failslab, interval 1, probability 0, space 0, times 1 [ 33.646371] CPU: 0 PID: 8090 Comm: syz-executor374 Not tainted 4.19.211-syzkaller #0 [ 33.654256] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.663614] Call Trace: [ 33.666250] dump_stack+0x1fc/0x2ef [ 33.669867] should_fail.cold+0xa/0xf [ 33.673653] ? setup_fault_attr+0x200/0x200 [ 33.677954] ? setup_fault_attr+0x200/0x200 [ 33.682279] ? check_preemption_disabled+0x41/0x280 [ 33.687280] __should_failslab+0x115/0x180 [ 33.691520] should_failslab+0x5/0x10 [ 33.695315] __kmalloc+0x6d/0x3c0 [ 33.698765] ? batadv_hash_new+0x6f/0x290 [ 33.702910] batadv_hash_new+0x6f/0x290 [ 33.706902] batadv_originator_init+0x51/0x240 [ 33.711472] batadv_mesh_init+0x46a/0x690 [ 33.715604] batadv_softif_init_late+0xad7/0xd90 [ 33.720343] ? batadv_get_strings+0x40/0x40 [ 33.724651] ? batadv_get_strings+0x40/0x40 [ 33.728960] register_netdevice+0x2dc/0x10f0 [ 33.733357] ? unregister_netdev+0x20/0x20 [ 33.737575] ? rtnl_create_link+0x145/0xa40 [ 33.741882] rtnl_newlink+0x13b5/0x15c0 [ 33.745844] ? rtnl_getlink+0x620/0x620 [ 33.749800] ? __lock_acquire+0x6de/0x3ff0 [ 33.754026] ? get_reg+0x1f0/0x1f0 [ 33.757550] ? mark_held_locks+0xf0/0xf0 [ 33.761600] ? unwind_next_frame+0xeee/0x1400 [ 33.766150] ? mark_held_locks+0xf0/0xf0 [ 33.770196] ? unwind_next_frame+0xeee/0x1400 [ 33.774678] ? __lock_acquire+0x6de/0x3ff0 [ 33.778900] ? get_reg+0x1f0/0x1f0 [ 33.782423] ? is_bpf_text_address+0xd5/0x1b0 [ 33.786902] ? mark_held_locks+0xf0/0xf0 [ 33.790944] ? unwind_next_frame+0xeee/0x1400 [ 33.795420] ? __save_stack_trace+0x72/0x190 [ 33.799814] ? deref_stack_reg+0x134/0x1d0 [ 33.804093] ? get_reg+0x176/0x1f0 [ 33.807620] ? __read_once_size_nocheck.constprop.0+0x10/0x10 [ 33.813491] ? deref_stack_reg+0x1d0/0x1d0 [ 33.817713] ? __lock_acquire+0x6de/0x3ff0 [ 33.821934] ? __lock_acquire+0x6de/0x3ff0 [ 33.826156] ? mark_held_locks+0xf0/0xf0 [ 33.830199] ? get_reg+0x1f0/0x1f0 [ 33.833775] ? unwind_next_frame+0xeee/0x1400 [ 33.838271] ? mutex_trylock+0x1a0/0x1a0 [ 33.842316] ? rtnetlink_rcv_msg+0x3a0/0xb80 [ 33.846711] ? rtnl_getlink+0x620/0x620 [ 33.850671] rtnetlink_rcv_msg+0x453/0xb80 [ 33.854890] ? rtnl_calcit.isra.0+0x430/0x430 [ 33.859370] ? __netlink_lookup+0x3fc/0x730 [ 33.863682] ? lock_downgrade+0x720/0x720 [ 33.867869] ? check_preemption_disabled+0x41/0x280 [ 33.872910] netlink_rcv_skb+0x160/0x440 [ 33.876957] ? rtnl_calcit.isra.0+0x430/0x430 [ 33.881470] ? netlink_ack+0xae0/0xae0 [ 33.885345] netlink_unicast+0x4d5/0x690 [ 33.889391] ? netlink_sendskb+0x110/0x110 [ 33.893609] ? _copy_from_iter_full+0x229/0x7c0 [ 33.898258] ? __phys_addr_symbol+0x2c/0x70 [ 33.902608] ? __check_object_size+0x17b/0x3e0 [ 33.907175] netlink_sendmsg+0x6c3/0xc50 [ 33.911223] ? aa_af_perm+0x230/0x230 [ 33.915009] ? nlmsg_notify+0x1f0/0x1f0 [ 33.918966] ? kernel_recvmsg+0x220/0x220 [ 33.923098] ? nlmsg_notify+0x1f0/0x1f0 [ 33.927055] sock_sendmsg+0xc3/0x120 [ 33.930766] ___sys_sendmsg+0x7bb/0x8e0 [ 33.934729] ? check_preemption_disabled+0x41/0x280 [ 33.940177] ? copy_msghdr_from_user+0x440/0x440 [ 33.944920] ? proc_fail_nth_write+0x95/0x1d0 [ 33.949396] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 33.954328] ? debug_check_no_obj_freed+0x201/0x490 [ 33.959343] ? __vfs_write+0xff/0x770 [ 33.963126] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 33.968039] ? common_file_perm+0x4e5/0x850 [ 33.972374] ? kernel_read+0x110/0x110 [ 33.976273] ? trace_hardirqs_off+0x64/0x200 [ 33.980838] ? fsnotify+0x84e/0xe10 [ 33.984448] ? vfs_write+0x3d7/0x540 [ 33.988162] ? __fdget+0x1a0/0x230 [ 33.991691] __x64_sys_sendmsg+0x132/0x220 [ 33.996005] ? __sys_sendmsg+0x1b0/0x1b0 [ 34.000082] ? vfs_write+0x393/0x540 [ 34.003812] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 34.009178] ? trace_hardirqs_off_caller+0x6e/0x210 [ 34.014181] ? do_syscall_64+0x21/0x620 [ 34.018178] do_syscall_64+0xf9/0x620 [ 34.021968] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 34.027159] RIP: 0033:0x7f8122249799 [ 34.030869] Code: 28 c3 e8 2a 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 [ 34.049830] RSP: 002b:00007fffcbd44458 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 34.057539] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f8122249799 [ 34.064798] RDX: 0000000000000000 RSI: 0000000020000140 RDI: 0000000000000003 [ 34.072051] RBP: 00007fffcbd44460 R08: 0000000000000002 R09: 00007f8122003131 [ 34.079302] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 34.086554] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 34.095770] ------------[ cut here ]------------ [ 34.100546] ODEBUG: assert_init not available (active state 0) object type: timer_list hint: (null) [ 34.110937] WARNING: CPU: 0 PID: 8090 at lib/debugobjects.c:325 debug_print_object+0x160/0x250 [ 34.119692] Kernel panic - not syncing: panic_on_warn set ... [ 34.119692] [ 34.127065] CPU: 0 PID: 8090 Comm: syz-executor374 Not tainted 4.19.211-syzkaller #0 [ 34.134934] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.144265] Call Trace: [ 34.146835] dump_stack+0x1fc/0x2ef [ 34.150444] panic+0x26a/0x50e [ 34.153618] ? __warn_printk+0xf3/0xf3 [ 34.157487] ? debug_print_object+0x160/0x250 [ 34.161964] ? __probe_kernel_read+0x130/0x1b0 [ 34.166523] ? __warn.cold+0x5/0x5a [ 34.170127] ? __warn+0xe4/0x200 [ 34.173475] ? debug_print_object+0x160/0x250 [ 34.177953] __warn.cold+0x20/0x5a [ 34.181472] ? debug_print_object+0x160/0x250 [ 34.185947] report_bug+0x262/0x2b0 [ 34.189558] do_error_trap+0x1d7/0x310 [ 34.193431] ? math_error+0x310/0x310 [ 34.197211] ? irq_work_claim+0xa6/0xc0 [ 34.201165] ? irq_work_queue+0x29/0x80 [ 34.205124] ? error_entry+0x72/0xd0 [ 34.208823] ? trace_hardirqs_off_caller+0x2c/0x210 [ 34.213825] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 34.218711] invalid_op+0x14/0x20 [ 34.222147] RIP: 0010:debug_print_object+0x160/0x250 [ 34.227231] Code: dd 20 f1 b3 88 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 bf 00 00 00 48 8b 14 dd 20 f1 b3 88 48 c7 c7 40 e5 b3 88 e8 65 92 7b 04 <0f> 0b 83 05 73 e6 af 07 01 48 83 c4 20 5b 5d 41 5c 41 5d c3 48 89 [ 34.246111] RSP: 0018:ffff8880a1166c10 EFLAGS: 00010086 [ 34.251456] RAX: 0000000000000000 RBX: 0000000000000005 RCX: 0000000000000000 [ 34.258708] RDX: 0000000000000000 RSI: ffffffff814dff01 RDI: ffffed101422cd74 [ 34.265958] RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000 [ 34.273228] R10: 0000000000000005 R11: ffffffff8c66501b R12: ffffffff89f90a40 [ 34.280476] R13: ffffffff815313f0 R14: ffff8880b2659700 R15: 1ffff1101422cd8d [ 34.287736] ? calc_wheel_index+0x230/0x230 [ 34.292041] ? vprintk_func+0x81/0x180 [ 34.295915] debug_object_assert_init+0x1f0/0x2e0 [ 34.300739] ? debug_object_free+0x380/0x380 [ 34.305130] ? mark_held_locks+0xf0/0xf0 [ 34.309179] del_timer+0x6d/0x100 [ 34.312613] ? run_timer_softirq+0x670/0x670 [ 34.317003] ? batadv_tvlv_handler_get+0x314/0x470 [ 34.321914] ? trace_hardirqs_off+0x64/0x200 [ 34.326306] try_to_grab_pending+0x2b6/0x6f0 [ 34.330697] __cancel_work_timer+0xa6/0x590 [ 34.335002] ? try_to_grab_pending+0x6f0/0x6f0 [ 34.339569] ? batadv_tvlv_handler_get+0x33b/0x470 [ 34.344480] ? batadv_tvlv_handler_put+0x40/0x40 [ 34.349216] ? mark_held_locks+0xa6/0xf0 [ 34.353304] batadv_nc_mesh_free+0x41/0x120 [ 34.357605] batadv_mesh_free+0x7d/0x170 [ 34.361648] batadv_mesh_init+0x5b7/0x690 [ 34.365778] batadv_softif_init_late+0xad7/0xd90 [ 34.370520] ? batadv_get_strings+0x40/0x40 [ 34.374878] ? batadv_get_strings+0x40/0x40 [ 34.379183] register_netdevice+0x2dc/0x10f0 [ 34.383578] ? unregister_netdev+0x20/0x20 [ 34.387797] ? rtnl_create_link+0x145/0xa40 [ 34.392102] rtnl_newlink+0x13b5/0x15c0 [ 34.396060] ? rtnl_getlink+0x620/0x620 [ 34.400015] ? __lock_acquire+0x6de/0x3ff0 [ 34.404238] ? get_reg+0x1f0/0x1f0 [ 34.407811] ? mark_held_locks+0xf0/0xf0 [ 34.411859] ? unwind_next_frame+0xeee/0x1400 [ 34.416556] ? mark_held_locks+0xf0/0xf0 [ 34.420612] ? unwind_next_frame+0xeee/0x1400 [ 34.425093] ? __lock_acquire+0x6de/0x3ff0 [ 34.429310] ? get_reg+0x1f0/0x1f0 [ 34.432831] ? is_bpf_text_address+0xd5/0x1b0 [ 34.437363] ? mark_held_locks+0xf0/0xf0 [ 34.441424] ? unwind_next_frame+0xeee/0x1400 [ 34.445903] ? __save_stack_trace+0x72/0x190 [ 34.450293] ? deref_stack_reg+0x134/0x1d0 [ 34.454557] ? get_reg+0x176/0x1f0 [ 34.458086] ? __read_once_size_nocheck.constprop.0+0x10/0x10 [ 34.463978] ? deref_stack_reg+0x1d0/0x1d0 [ 34.468201] ? __lock_acquire+0x6de/0x3ff0 [ 34.472443] ? __lock_acquire+0x6de/0x3ff0 [ 34.476665] ? mark_held_locks+0xf0/0xf0 [ 34.480708] ? get_reg+0x1f0/0x1f0 [ 34.484232] ? unwind_next_frame+0xeee/0x1400 [ 34.488725] ? mutex_trylock+0x1a0/0x1a0 [ 34.492771] ? rtnetlink_rcv_msg+0x3a0/0xb80 [ 34.497169] ? rtnl_getlink+0x620/0x620 [ 34.501143] rtnetlink_rcv_msg+0x453/0xb80 [ 34.505365] ? rtnl_calcit.isra.0+0x430/0x430 [ 34.509860] ? __netlink_lookup+0x3fc/0x730 [ 34.514167] ? lock_downgrade+0x720/0x720 [ 34.518320] ? check_preemption_disabled+0x41/0x280 [ 34.523324] netlink_rcv_skb+0x160/0x440 [ 34.527380] ? rtnl_calcit.isra.0+0x430/0x430 [ 34.531860] ? netlink_ack+0xae0/0xae0 [ 34.535755] netlink_unicast+0x4d5/0x690 [ 34.540325] ? netlink_sendskb+0x110/0x110 [ 34.544538] ? _copy_from_iter_full+0x229/0x7c0 [ 34.549199] ? __phys_addr_symbol+0x2c/0x70 [ 34.553516] ? __check_object_size+0x17b/0x3e0 [ 34.558083] netlink_sendmsg+0x6c3/0xc50 [ 34.562144] ? aa_af_perm+0x230/0x230 [ 34.565925] ? nlmsg_notify+0x1f0/0x1f0 [ 34.569876] ? kernel_recvmsg+0x220/0x220 [ 34.574009] ? nlmsg_notify+0x1f0/0x1f0 [ 34.577967] sock_sendmsg+0xc3/0x120 [ 34.581666] ___sys_sendmsg+0x7bb/0x8e0 [ 34.585642] ? check_preemption_disabled+0x41/0x280 [ 34.590655] ? copy_msghdr_from_user+0x440/0x440 [ 34.595398] ? proc_fail_nth_write+0x95/0x1d0 [ 34.599879] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 34.604792] ? debug_check_no_obj_freed+0x201/0x490 [ 34.609809] ? __vfs_write+0xff/0x770 [ 34.613600] ? proc_tgid_io_accounting+0x7f0/0x7f0 [ 34.618533] ? common_file_perm+0x4e5/0x850 [ 34.622854] ? kernel_read+0x110/0x110 [ 34.626725] ? trace_hardirqs_off+0x64/0x200 [ 34.631118] ? fsnotify+0x84e/0xe10 [ 34.634730] ? vfs_write+0x3d7/0x540 [ 34.638432] ? __fdget+0x1a0/0x230 [ 34.641972] __x64_sys_sendmsg+0x132/0x220 [ 34.646189] ? __sys_sendmsg+0x1b0/0x1b0 [ 34.650234] ? vfs_write+0x393/0x540 [ 34.653939] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 34.659291] ? trace_hardirqs_off_caller+0x6e/0x210 [ 34.664290] ? do_syscall_64+0x21/0x620 [ 34.668772] do_syscall_64+0xf9/0x620 [ 34.672591] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 34.677777] RIP: 0033:0x7f8122249799 [ 34.681476] Code: 28 c3 e8 2a 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 [ 34.700362] RSP: 002b:00007fffcbd44458 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 34.708059] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f8122249799 [ 34.715311] RDX: 0000000000000000 RSI: 0000000020000140 RDI: 0000000000000003 [ 34.722573] RBP: 00007fffcbd44460 R08: 0000000000000002 R09: 00007f8122003131 [ 34.729839] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 34.737090] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 34.744603] Kernel Offset: disabled [ 34.748266] Rebooting in 86400 seconds..