Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.1.77' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program syzkaller login: [ 30.366913] ODEBUG: assert_init not available (active state 0) object type: timer_list hint: tipc_subscrp_timeout+0x0/0x240 [ 30.378379] ------------[ cut here ]------------ [ 30.383122] WARNING: CPU: 1 PID: 23 at lib/debugobjects.c:287 debug_print_object.cold+0xa7/0xdb [ 30.391932] Kernel panic - not syncing: panic_on_warn set ... [ 30.391932] [ 30.399285] CPU: 1 PID: 23 Comm: kworker/u4:1 Not tainted 4.14.292-syzkaller #0 [ 30.406703] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022 [ 30.416127] Workqueue: tipc_send tipc_send_work [ 30.420766] Call Trace: [ 30.423332] dump_stack+0x1b2/0x281 [ 30.426937] panic+0x1f9/0x42d [ 30.430118] ? add_taint.cold+0x16/0x16 [ 30.434176] ? debug_print_object.cold+0xa7/0xdb [ 30.438906] ? debug_print_object.cold+0xa7/0xdb [ 30.443633] __warn.cold+0x20/0x44 [ 30.447174] ? ist_end_non_atomic+0x10/0x10 [ 30.451477] ? debug_print_object.cold+0xa7/0xdb [ 30.456210] report_bug+0x208/0x250 [ 30.459812] do_error_trap+0x195/0x2d0 [ 30.463674] ? math_error+0x2d0/0x2d0 [ 30.467456] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 30.472287] invalid_op+0x1b/0x40 [ 30.475715] RIP: 0010:debug_print_object.cold+0xa7/0xdb [ 30.481052] RSP: 0018:ffff8880b560fa38 EFLAGS: 00010286 [ 30.486390] RAX: 000000000000006f RBX: 0000000000000005 RCX: 0000000000000000 [ 30.493632] RDX: 0000000000000000 RSI: ffffffff878bc9e0 RDI: ffffed1016ac1f3d [ 30.500877] RBP: ffffffff878b7ca0 R08: 000000000000006f R09: 0000000000000000 [ 30.508120] R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff86ce2f30 [ 30.515366] R13: 0000000000000000 R14: ffff8880b5451a18 R15: 1ffff11016ac1f50 [ 30.522619] ? tipc_subscrb_release_cb+0x20/0x20 [ 30.527353] ? debug_print_object.cold+0xa7/0xdb [ 30.532085] debug_object_assert_init+0x1d3/0x2d0 [ 30.536906] ? trace_hardirqs_on+0x10/0x10 [ 30.541113] ? debug_object_active_state+0x330/0x330 [ 30.546286] ? reacquire_held_locks+0xb5/0x3f0 [ 30.550846] del_timer+0x5d/0xe0 [ 30.554189] ? process_timeout+0x20/0x20 [ 30.558245] tipc_subscrb_subscrp_delete+0x13a/0x330 [ 30.563321] ? tipc_subscrb_subscrp_delete+0x330/0x330 [ 30.568572] tipc_subscrb_release_cb+0x13/0x20 [ 30.573129] tipc_close_conn+0x16a/0x200 [ 30.577173] tipc_send_work+0x41e/0x520 [ 30.581123] ? tipc_recv_work+0xd0/0xd0 [ 30.585081] ? rcu_lockdep_current_cpu_online+0xed/0x140 [ 30.590508] process_one_work+0x793/0x14a0 [ 30.594718] ? work_busy+0x320/0x320 [ 30.598409] ? worker_thread+0x158/0xff0 [ 30.602445] ? _raw_spin_unlock_irq+0x24/0x80 [ 30.606925] worker_thread+0x5cc/0xff0 [ 30.610796] ? rescuer_thread+0xc80/0xc80 [ 30.614920] kthread+0x30d/0x420 [ 30.618279] ? kthread_create_on_node+0xd0/0xd0 [ 30.622940] ret_from_fork+0x24/0x30 [ 30.626913] Kernel Offset: disabled [ 30.630565] Rebooting in 86400 seconds..