Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.119' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program syzkaller login: [ 27.873845] ODEBUG: assert_init not available (active state 0) object type: timer_list hint: tipc_subscrp_timeout+0x0/0x240 [ 27.885409] ------------[ cut here ]------------ [ 27.890162] WARNING: CPU: 1 PID: 5 at lib/debugobjects.c:287 debug_print_object.cold+0xa7/0xdb [ 27.898901] Kernel panic - not syncing: panic_on_warn set ... [ 27.898901] [ 27.906259] CPU: 1 PID: 5 Comm: kworker/u4:0 Not tainted 4.14.281-syzkaller #0 [ 27.913610] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 executing program [ 27.922966] Workqueue: tipc_send tipc_send_work [ 27.927633] Call Trace: [ 27.930220] dump_stack+0x1b2/0x281 [ 27.933844] panic+0x1f9/0x42d [ 27.937032] ? add_taint.cold+0x16/0x16 [ 27.941087] ? debug_print_object.cold+0xa7/0xdb [ 27.945838] ? debug_print_object.cold+0xa7/0xdb [ 27.950593] __warn.cold+0x20/0x44 [ 27.954127] ? ist_end_non_atomic+0x10/0x10 [ 27.958445] ? debug_print_object.cold+0xa7/0xdb [ 27.963195] report_bug+0x208/0x250 [ 27.966817] do_error_trap+0x195/0x2d0 [ 27.970697] ? math_error+0x2d0/0x2d0 executing program [ 27.974502] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 27.979338] invalid_op+0x1b/0x40 [ 27.982784] RIP: 0010:debug_print_object.cold+0xa7/0xdb [ 27.988135] RSP: 0018:ffff8880b5407a38 EFLAGS: 00010286 [ 27.993487] RAX: 000000000000006f RBX: 0000000000000005 RCX: 0000000000000000 [ 28.000749] RDX: 0000000000000000 RSI: ffffffff878bc600 RDI: ffffed1016a80f3d [ 28.008007] RBP: ffffffff878b78c0 R08: 000000000000006f R09: 0000000000000000 [ 28.015272] R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff86ce5f30 executing program [ 28.022535] R13: 0000000000000000 R14: ffff8880a154db18 R15: 1ffff11016a80f50 [ 28.029802] ? tipc_subscrb_release_cb+0x20/0x20 [ 28.034560] ? debug_print_object.cold+0xa7/0xdb [ 28.039312] debug_object_assert_init+0x1d3/0x2d0 [ 28.044153] ? trace_hardirqs_on+0x10/0x10 [ 28.048381] ? debug_object_active_state+0x330/0x330 [ 28.053481] ? reacquire_held_locks+0xb5/0x3f0 [ 28.058060] del_timer+0x5d/0xe0 [ 28.061418] ? process_timeout+0x20/0x20 [ 28.065475] tipc_subscrb_subscrp_delete+0x13a/0x330 executing program [ 28.070574] ? tipc_subscrb_subscrp_delete+0x330/0x330 [ 28.075847] tipc_subscrb_release_cb+0x13/0x20 [ 28.080422] tipc_close_conn+0x16a/0x200 [ 28.084480] tipc_send_work+0x41e/0x520 [ 28.088458] ? tipc_recv_work+0xd0/0xd0 [ 28.092438] ? rcu_lockdep_current_cpu_online+0xed/0x140 [ 28.097886] process_one_work+0x793/0x14a0 [ 28.102117] ? work_busy+0x320/0x320 [ 28.105822] ? worker_thread+0x158/0xff0 [ 28.109880] ? _raw_spin_unlock_irq+0x24/0x80 [ 28.114371] worker_thread+0x5cc/0xff0 [ 28.118256] ? rescuer_thread+0xc80/0xc80 [ 28.122400] kthread+0x30d/0x420 [ 28.125758] ? kthread_create_on_node+0xd0/0xd0 [ 28.130420] ret_from_fork+0x24/0x30 [ 28.134473] Kernel Offset: disabled [ 28.138125] Rebooting in 86400 seconds..