loop_reread_partitions: partition scan of loop4 () failed (rc=-5)
FAT-fs (loop5): bogus number of reserved sectors
FAT-fs (loop5): Can't find a valid FAT filesystem
------------[ cut here ]------------
ODEBUG: init active (active state 0) object type: timer_list hint: delayed_work_timer_fn+0x0/0x90 kernel/workqueue.c:1414
WARNING: CPU: 1 PID: 10292 at lib/debugobjects.c:329 debug_print_object+0x16a/0x210 lib/debugobjects.c:326
Kernel panic - not syncing: panic_on_warn set ...

CPU: 1 PID: 10292 Comm: syz-executor6 Not tainted 4.18.0-rc7-next-20180803+ #31
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1c9/0x2b4 lib/dump_stack.c:113
 panic+0x238/0x4e7 kernel/panic.c:184
 __warn.cold.8+0x163/0x1ba kernel/panic.c:536
 report_bug+0x252/0x2d0 lib/bug.c:186
 fixup_bug arch/x86/kernel/traps.c:178 [inline]
 do_error_trap+0x1fc/0x4d0 arch/x86/kernel/traps.c:296
 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:316
 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:996
RIP: 0010:debug_print_object+0x16a/0x210 lib/debugobjects.c:326
Code: 3a 87 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 92 00 00 00 48 8b 14 dd 60 a8 3a 87 4c 89 f6 48 c7 c7 00 9e 3a 87 e8 26 70 e2 fd <0f> 0b 83 05 09 33 26 05 01 48 83 c4 18 5b 41 5c 41 5d 41 5e 41 5f
RSP: 0018:ffff8801cb817658 EFLAGS: 00010082
RAX: 0000000000000000 RBX: 0000000000000003 RCX: ffffc90005e2c000
RDX: 0000000000004878 RSI: ffffffff816366f1 RDI: 0000000000000001
RBP: ffff8801cb817698 R08: ffff8801acbd8480 R09: ffffed003b623ec2
R10: ffffed003b623ec2 R11: ffff8801db11f617 R12: 0000000000000001
R13: ffffffff87f9d1c0 R14: ffffffff873aa400 R15: ffffffff816988b0
 __debug_object_init+0x8e9/0x12e0 lib/debugobjects.c:406
 debug_object_init+0x16/0x20 lib/debugobjects.c:432
 debug_timer_init kernel/time/timer.c:704 [inline]
 debug_init kernel/time/timer.c:757 [inline]
 init_timer_key+0xa9/0x490 kernel/time/timer.c:806
 vsock_stream_connect+0xc7a/0xfc0 net/vmw_vsock/af_vsock.c:1224
 __sys_connect+0x37d/0x4c0 net/socket.c:1663
 __do_sys_connect net/socket.c:1674 [inline]
 __se_sys_connect net/socket.c:1671 [inline]
 __x64_sys_connect+0x73/0xb0 net/socket.c:1671
 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x456cb9
Code: fd b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 0f 83 cb b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f5230dadc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002a
RAX: ffffffffffffffda RBX: 00007f5230dae6d4 RCX: 0000000000456cb9
RDX: 000000000000005c RSI: 0000000020000180 RDI: 0000000000000014
RBP: 00000000009300a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 00000000004caf60 R14: 00000000004c2d3b R15: 0000000000000000
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..