audit: type=1800 audit(1569630328.513:192): pid=22227 uid=0 auid=4294967295 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 op="collect_data" cause="failed(directio)" comm="syz-executor.1" name="file0" dev="sda1" ino=17355 res=0 ODEBUG: assert_init not available (active state 0) object type: timer_list hint: tipc_subscrp_timeout+0x0/0x280 net/tipc/subscr.c:310 ------------[ cut here ]------------ kobject: 'loop4' (ffff8880a49dc9a0): kobject_uevent_env WARNING: CPU: 1 PID: 5 at lib/debugobjects.c:287 debug_print_object.cold+0xa7/0xdb lib/debugobjects.c:287 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 5 Comm: kworker/u4:0 Not tainted 4.14.146 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: tipc_send tipc_send_work kobject: 'loop4' (ffff8880a49dc9a0): fill_kobj_path: path = '/devices/virtual/block/loop4' Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x138/0x197 lib/dump_stack.c:53 panic+0x1f2/0x426 kernel/panic.c:182 __warn.cold+0x2f/0x36 kernel/panic.c:546 kobject: 'veth126' (ffff888095e14cb0): kobject_uevent_env report_bug+0x216/0x254 lib/bug.c:186 fixup_bug arch/x86/kernel/traps.c:177 [inline] fixup_bug arch/x86/kernel/traps.c:172 [inline] do_error_trap+0x1bb/0x310 arch/x86/kernel/traps.c:295 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:314 kobject: 'veth126' (ffff888095e14cb0): fill_kobj_path: path = '/devices/virtual/net/veth126' invalid_op+0x1b/0x40 arch/x86/entry/entry_64.S:963 RIP: 0010:debug_print_object.cold+0xa7/0xdb lib/debugobjects.c:287 RSP: 0018:ffff8880a9cd79d8 EFLAGS: 00010286 RAX: 000000000000006f RBX: 0000000000000005 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff866d10e0 RDI: ffffed101539af31 RBP: ffff8880a9cd7a00 R08: 000000000000006f R09: ffff8880a9cc2a30 R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff866cc2e0 R13: ffffffff85e6b790 R14: 0000000000000000 R15: ffff888097daa918 kobject: 'loop0' (ffff88809333e2a0): kobject_uevent_env debug_object_assert_init lib/debugobjects.c:656 [inline] debug_object_assert_init+0x22f/0x300 lib/debugobjects.c:627 debug_timer_assert_init kernel/time/timer.c:707 [inline] debug_assert_init kernel/time/timer.c:755 [inline] del_timer+0x67/0xf0 kernel/time/timer.c:1150 tipc_subscrb_subscrp_delete+0x16a/0x3a0 net/tipc/subscr.c:207 kobject: 'queues' (ffff8880629b1f48): kobject_add_internal: parent: 'veth126', set: '' tipc_subscrb_delete net/tipc/subscr.c:238 [inline] tipc_subscrb_release_cb+0x18/0x30 net/tipc/subscr.c:316 tipc_close_conn+0x176/0x210 net/tipc/server.c:203 tipc_send_to_sock net/tipc/server.c:538 [inline] tipc_send_work+0x470/0x5a0 net/tipc/server.c:564 process_one_work+0x863/0x1600 kernel/workqueue.c:2114 kobject: 'queues' (ffff8880629b1f48): kobject_uevent_env worker_thread+0x5d9/0x1050 kernel/workqueue.c:2248 kthread+0x319/0x430 kernel/kthread.c:232 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:404 Kernel Offset: disabled Rebooting in 86400 seconds..