RBP: 000000000072bea0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000014
R13: 00000000000003af R14: 00000000006f9908 R15: 0000000000000006
------------[ cut here ]------------
kobject_add_internal failed for brport (error: -12 parent: team_slave_0)
WARNING: CPU: 0 PID: 15568 at lib/kobject.c:242 kobject_add_internal+0x10fc/0x1700 lib/kobject.c:240
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 15568 Comm: syz-executor3 Not tainted 4.16.0+ #87
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0x185/0x1d0 lib/dump_stack.c:53
 panic+0x39d/0x940 kernel/panic.c:183
 __warn+0x40f/0x580 kernel/panic.c:547
 report_bug+0x72a/0x880 lib/bug.c:186
 fixup_bug arch/x86/kernel/traps.c:179 [inline]
 do_error_trap+0x1aa/0x600 arch/x86/kernel/traps.c:297
 do_invalid_op+0x46/0x50 arch/x86/kernel/traps.c:316
 invalid_op+0x1b/0x40 arch/x86/entry/entry_64.S:986
RIP: 0010:kobject_add_internal+0x10fc/0x1700 lib/kobject.c:240
RSP: 0018:ffff88014614f4a8 EFLAGS: 00010282
RAX: 0000000000000048 RBX: 0000000000000000 RCX: 0000000000000000
RDX: ffffc90002fa4000 RSI: 0000000000023769 RDI: 000000000002376a
RBP: ffff88014614f540 R08: 0000000001080020 R09: 0000000000000002
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 00000000fffffff4 R14: ffff88019d87de60 R15: ffff88014b4d0918
 kobject_add_varg lib/kobject.c:364 [inline]
 kobject_init_and_add+0x5cb/0x710 lib/kobject.c:436
 br_add_if+0xd24/0x3140 net/bridge/br_if.c:533
 add_del_if net/bridge/br_ioctl.c:101 [inline]
 old_dev_ioctl net/bridge/br_ioctl.c:126 [inline]
 br_dev_ioctl+0x2c4/0x2b30 net/bridge/br_ioctl.c:392
 dev_ifsioc+0x8a8/0x10c0 net/core/dev_ioctl.c:334
 dev_ioctl+0xa45/0x1cf0 net/core/dev_ioctl.c:500
 sock_do_ioctl+0x43a/0x6b0 net/socket.c:981
 sock_ioctl+0x400/0xca0 net/socket.c:1081
 vfs_ioctl fs/ioctl.c:46 [inline]
 do_vfs_ioctl+0xaf0/0x2440 fs/ioctl.c:686
 SYSC_ioctl+0x1d2/0x260 fs/ioctl.c:701
 SyS_ioctl+0x54/0x80 fs/ioctl.c:692
 do_syscall_64+0x309/0x430 arch/x86/entry/common.c:287
 entry_SYSCALL_64_after_hwframe+0x3d/0xa2
RIP: 0033:0x455979
RSP: 002b:00007ffbdda07c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007ffbdda086d4 RCX: 0000000000455979
RDX: 0000000020000000 RSI: 00000000000089a2 RDI: 0000000000000013
RBP: 000000000072bea0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000014
R13: 00000000000003af R14: 00000000006f9908 R15: 0000000000000006
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..