ODEBUG: free active (active state 0) object type: timer_list hint: delayed_work_timer_fn+0x0/0x90 syzkaller/managers/linux-4-14/kernel/kernel/workqueue.c:3144
device veth1_macvtap entered promiscuous mode
------------[ cut here ]------------
IPv6: ADDRCONF(NETDEV_UP): macsec0: link is not ready
WARNING: CPU: 1 PID: 2845 at lib/debugobjects.c:287 debug_print_object.cold+0xa7/0xdb syzkaller/managers/linux-4-14/kernel/lib/debugobjects.c:287
Kernel panic - not syncing: panic_on_warn set ...

CPU: 1 PID: 2845 Comm: kworker/u4:4 Not tainted 4.14.218-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: netns cleanup_net
Call Trace:
 __dump_stack syzkaller/managers/linux-4-14/kernel/lib/dump_stack.c:17 [inline]
 dump_stack+0x1b2/0x281 syzkaller/managers/linux-4-14/kernel/lib/dump_stack.c:58
IPv6: ADDRCONF(NETDEV_UP): veth0_to_batadv: link is not ready
 panic+0x1f9/0x42d syzkaller/managers/linux-4-14/kernel/kernel/panic.c:183
IPv6: ADDRCONF(NETDEV_UP): veth1_to_batadv: link is not ready
 __warn.cold+0x20/0x44 syzkaller/managers/linux-4-14/kernel/kernel/panic.c:547
batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3d) already exists on: batadv_slave_0
batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
 report_bug+0x208/0x250 syzkaller/managers/linux-4-14/kernel/lib/bug.c:186
IPv6: ADDRCONF(NETDEV_UP): batadv_slave_0: link is not ready
 fixup_bug syzkaller/managers/linux-4-14/kernel/arch/x86/kernel/traps.c:177 [inline]
 fixup_bug syzkaller/managers/linux-4-14/kernel/arch/x86/kernel/traps.c:172 [inline]
 do_error_trap+0x195/0x2d0 syzkaller/managers/linux-4-14/kernel/arch/x86/kernel/traps.c:295
batman_adv: batadv0: Interface activated: batadv_slave_0
batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_1
batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
 invalid_op+0x1b/0x40 syzkaller/managers/linux-4-14/kernel/arch/x86/entry/entry_64.S:964
RIP: 0010:debug_print_object.cold+0xa7/0xdb syzkaller/managers/linux-4-14/kernel/lib/debugobjects.c:287
RSP: 0018:ffff8880ac75f900 EFLAGS: 00010082
RAX: 0000000000000061 RBX: 0000000000000003 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff878bbb40 RDI: ffffed10158ebf16
RBP: ffffffff878b6e00 R08: 0000000000000061 R09: 0000000000000000
R10: 0000000000000000 R11: ffff8880ac74e4c0 R12: ffffffff8135fd20
R13: 0000000000000000 R14: ffff888098ee8bc0 R15: ffff8880b44c2690
IPv6: ADDRCONF(NETDEV_UP): batadv_slave_1: link is not ready
 __debug_check_no_obj_freed syzkaller/managers/linux-4-14/kernel/lib/debugobjects.c:747 [inline]
 debug_check_no_obj_freed+0x3b7/0x680 syzkaller/managers/linux-4-14/kernel/lib/debugobjects.c:776
batman_adv: batadv0: Interface activated: batadv_slave_1
 kfree+0xb9/0x250 syzkaller/managers/linux-4-14/kernel/mm/slab.c:3814
IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready
 kvfree+0x45/0x50 syzkaller/managers/linux-4-14/kernel/mm/util.c:416
 device_release+0x15f/0x1a0 syzkaller/managers/linux-4-14/kernel/drivers/base/core.c:833
 kobject_cleanup syzkaller/managers/linux-4-14/kernel/lib/kobject.c:646 [inline]
 kobject_release syzkaller/managers/linux-4-14/kernel/lib/kobject.c:675 [inline]
 kref_put syzkaller/managers/linux-4-14/kernel/./include/linux/kref.h:70 [inline]
 kobject_put+0x251/0x550 syzkaller/managers/linux-4-14/kernel/lib/kobject.c:692
IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready
 netdev_run_todo+0x747/0xad0 syzkaller/managers/linux-4-14/kernel/net/core/dev.c:7961
 default_device_exit_batch+0x2e2/0x380 syzkaller/managers/linux-4-14/kernel/net/core/dev.c:8747
IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready
 ops_exit_list+0xf9/0x150 syzkaller/managers/linux-4-14/kernel/net/core/net_namespace.c:145
 cleanup_net+0x3b3/0x840 syzkaller/managers/linux-4-14/kernel/net/core/net_namespace.c:484
IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready
 process_one_work+0x793/0x14a0 syzkaller/managers/linux-4-14/kernel/kernel/workqueue.c:2116
 worker_thread+0x5cc/0xff0 syzkaller/managers/linux-4-14/kernel/kernel/workqueue.c:2250
IPv6: ADDRCONF(NETDEV_UP): veth0_vlan: link is not ready
IPv6: ADDRCONF(NETDEV_UP): vlan0: link is not ready
 kthread+0x30d/0x420 syzkaller/managers/linux-4-14/kernel/kernel/kthread.c:232
 ret_from_fork+0x24/0x30 syzkaller/managers/linux-4-14/kernel/arch/x86/entry/entry_64.S:404

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