IPVS: ftp: loaded support on port[0] = 21
overlayfs: filesystem on './file0' not supported as upperdir
WARNING: CPU: 1 PID: 18358 at fs/overlayfs/dir.c:263 ovl_instantiate+0x369/0x400 fs/overlayfs/dir.c:263
Kernel panic - not syncing: panic_on_warn set ...
CPU: 1 PID: 18358 Comm: syz-executor2 Not tainted 4.20.0-rc6-next-20181214+ #171
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
kobject: 'ip_vti0' (000000008ff3182a): kobject_add_internal: parent: 'net', set: 'devices'
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x244/0x39d lib/dump_stack.c:113
 panic+0x2ad/0x632 kernel/panic.c:214
 __warn.cold.8+0x20/0x4f kernel/panic.c:571
 report_bug+0x254/0x2d0 lib/bug.c:186
 fixup_bug arch/x86/kernel/traps.c:178 [inline]
 do_error_trap+0x11b/0x200 arch/x86/kernel/traps.c:271
 do_invalid_op+0x36/0x40 arch/x86/kernel/traps.c:290
 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:973
RIP: 0010:ovl_instantiate+0x369/0x400 fs/overlayfs/dir.c:263
Code: c3 89 c6 e8 89 35 ed fe 85 db 0f 85 9e 00 00 00 e8 6c 34 ed fe 4c 89 e7 45 31 f6 e8 a1 b1 44 ff e9 ec fe ff ff e8 57 34 ed fe <0f> 0b e9 e0 fe ff ff e8 4b 34 ed fe 0f 0b e9 63 ff ff ff e8 ef 88
kobject: 'ip_vti0' (000000008ff3182a): kobject_uevent_env
RSP: 0018:ffff88817ffef9a8 EFLAGS: 00010212
RAX: 0000000000040000 RBX: ffff88817ffefa40 RCX: ffffc90012052000
RDX: 00000000000014ae RSI: ffffffff8292cec9 RDI: 0000000000000007
RBP: ffff88817ffefa68 R08: ffff888180346480 R09: ffffed102fffdee8
kobject: 'ip_vti0' (000000008ff3182a): fill_kobj_path: path = '/devices/virtual/net/ip_vti0'
R10: ffffed102fffdee8 R11: 0000000000000003 R12: ffff8881c07a6b40
R13: ffff88817ffef9e0 R14: ffffffffffffff8c R15: 0000000000000000
 ovl_create_over_whiteout fs/overlayfs/dir.c:518 [inline]
 ovl_create_or_link+0xad6/0x1560 fs/overlayfs/dir.c:582
kobject: 'queues' (000000003a7e7a11): kobject_add_internal: parent: 'ip_vti0', set: '<NULL>'
 ovl_create_object+0x2e9/0x3a0 fs/overlayfs/dir.c:616
kobject: 'queues' (000000003a7e7a11): kobject_uevent_env
 ovl_symlink+0x24/0x30 fs/overlayfs/dir.c:651
 vfs_symlink+0x37a/0x5d0 fs/namei.c:4127
kobject: 'queues' (000000003a7e7a11): kobject_uevent_env: filter function caused the event to drop!
 do_symlinkat+0x242/0x2d0 fs/namei.c:4154
kobject: 'rx-0' (000000007670bd51): kobject_add_internal: parent: 'queues', set: 'queues'
kobject: 'rx-0' (000000007670bd51): kobject_uevent_env
 __do_sys_symlink fs/namei.c:4173 [inline]
 __se_sys_symlink fs/namei.c:4171 [inline]
 __x64_sys_symlink+0x59/0x80 fs/namei.c:4171
 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
kobject: 'rx-0' (000000007670bd51): fill_kobj_path: path = '/devices/virtual/net/ip_vti0/queues/rx-0'
kobject: 'tx-0' (0000000061f62a04): kobject_add_internal: parent: 'queues', set: 'queues'
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x457659
kobject: 'tx-0' (0000000061f62a04): kobject_uevent_env
Code: fd b3 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 b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fb75e4abc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000058
RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 0000000000457659
RDX: 0000000000000000 RSI: 0000000020000140 RDI: 0000000020000040
RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fb75e4ac6d4
kobject: 'tx-0' (0000000061f62a04): fill_kobj_path: path = '/devices/virtual/net/ip_vti0/queues/tx-0'
R13: 00000000004c532d R14: 00000000004d97a0 R15: 00000000ffffffff
Kernel Offset: disabled
Rebooting in 86400 seconds..